freedombone/src/freedombone

#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# This install script is intended for use with Debian Jessie
#
# License
# =======
#
# Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

NO_OF_ARGS=$#

PROJECT_NAME='freedombone'

export TEXTDOMAIN=$PROJECT_NAME
export TEXTDOMAINDIR="/usr/share/locale"

DEFAULT_LANGUAGE=$(echo $LANG)

# username created by default within a debian image
GENERIC_IMAGE_USERNAME='fbone'

# Web site
PROJECT_WEBSITE="http://${PROJECT_NAME}.uk.to"

# Repo
PROJECT_REPO="https://github.com/bashrc/${PROJECT_NAME}"

# Contact details
PROJECT_BITMESSAGE="BM-2cWuhmBvVdfrHhLoZTdspCkKeiTorUesSL"

# default search engine for command line browser
DEFAULT_SEARCH='https://searx.laquadrature.net'

# Are we installing on a Beaglebone Black (BBB) or some other system?
INSTALLING_ON_BBB="no"

# Version number of this script
VERSION="1.01"

# if yes then this minimises the number of descisions presented during install
MINIMAL_INSTALL="yes"

# Whether web sites will be .onion addresses only
ONION_ONLY="no"

# Different system variants which may be specified within
# the SYSTEM_TYPE option
VARIANT_FULL="full"
VARIANT_WRITER="writer"
VARIANT_CLOUD="cloud"
VARIANT_CHAT="chat"
VARIANT_MAILBOX="mailbox"
VARIANT_NONMAILBOX="nonmailbox"
VARIANT_SOCIAL="social"
VARIANT_MEDIA="media"
VARIANT_DEVELOPER="developer"
VARIANT_MESH="mesh"

DEFAULT_DOMAIN_NAME=
DEFAULT_DOMAIN_CODE=
MY_USERNAME=
SYSTEM_TYPE=$VARIANT_FULL

# whether the system is being installed from a pre-created configuration file
INSTALLING_FROM_CONFIGURATION_FILE="no"

# An optional configuration file which overrides some of these variables
CONFIGURATION_FILE="${PROJECT_NAME}.cfg"

SSH_PORT=2222
IRC_PORT=6697
IRC_ONION_PORT=8093

# password used for accessing your repo mirrors
MY_MIRRORS_PASSWORD=
# friend's repo mirrors
FRIENDS_MIRRORS_PASSWORD=
FRIENDS_MIRRORS_SERVER=
FRIENDS_MIRRORS_SSH_PORT=2222

# This isn't used here, but is included for mirrors creation purposes
LETSENCRYPT_REPO="https://github.com/letsencrypt/letsencrypt"

# An optional password to log into IRC. This applies to all users
IRC_PASSWORD=

# If this file exists it contains a global password used with
# disk image installs. This simplifies password management for
# deployment at scale
IMAGE_PASSWORD_FILE=/root/login.txt

# parameters used when adding a new domain
DDNS_PROVIDER="default@freedns.afraid.org"
DDNS_USERNAME=
DDNS_PASSWORD=

EXIM_ONION_REPO="https://github.com/petterreinholdtsen/exim4-smtorp"

NGINX_ENSITE_REPO="https://github.com/perusio/nginx_ensite"
NGINX_ENSITE_COMMIT='fa4d72ce1c0a490442c8474e9c8dc21ed52c93d0'

CLEANUP_MAILDIR_REPO="https://github.com/bashrc/cleanup-maildir"
CLEANUP_MAILDIR_COMMIT='33241d2e3861f901ba17f5c77ada007e1ec06a86'

INADYN_REPO="https://github.com/bashrc/inadyn"
INADYN_COMMIT='fadbe17f520d337dfb8d69ee4bf1fcaa23fce0d6'

# Minimum number of characters in a password
MINIMUM_PASSWORD_LENGTH=10

# number of CPU cores
CPU_CORES=1

# If the system is on an IPv6 network
IPV6_NETWORK='2001:470:26:307'

# The static IP address of the system within the local network
# By default the IP address is dynamic within your LAN
LOCAL_NETWORK_STATIC_IP_ADDRESS=

# IP address of the router (gateway)
ROUTER_IP_ADDRESS="192.168.1.254"

# DNS
NAMESERVER1='213.73.91.35'
NAMESERVER2='85.214.20.141'

# whether to route outgoing traffic through Tor
ROUTE_THROUGH_TOR="no"

# Why use Google as a time source?
# The thinking here is that it's likely to be reliable and fast.
# The ping doesn't reveal any information other than that the server
# is running, and if anyone maliciously alters the time on Google's
# servers then that would certainly be newsworthy and they'd be
# likely to do something about it quickly.
# If you have better time sources then change them here.
TLS_TIME_SOURCE1="google.com"
TLS_TIME_SOURCE2="www.ptb.de"

# The type of hardware random number generator being used
# This can be empty, "beaglebone" or "onerng"
HWRNG_TYPE=

# Download location for OneRNG driver
ONERNG_PACKAGE="onerng_3.4-1_all.deb"
ONERNG_PACKAGE_DOWNLOAD="https://github.com/OneRNG/onerng.github.io/blob/master/sw/$ONERNG_PACKAGE?raw=true"
# Hash for OneRNG driver
ONERNG_PACKAGE_HASH='78f1c2f52ae573e3b398a695ece7ab9f41868252657ea269f0d5cf0bd4f2eb59'

# device name for OneRNG
ONERNG_DEVICE='ttyACM0'

# Whether this system is being installed within a docker container
INSTALLED_WITHIN_DOCKER="no"

# If you want to run a public mailing list specify its name here.
# There should be no spaces in the name
PUBLIC_MAILING_LIST=
# Optional different domain name for the public mailing list
PUBLIC_MAILING_LIST_DOMAIN_NAME=
# Directory where the public mailing list data is stored
PUBLIC_MAILING_LIST_DIRECTORY="/var/spool/mlmmj"

# If you want to run an encrypted mailing list specify its name here.
# There should be no spaces in the name
PRIVATE_MAILING_LIST=

# Domain name for mediagoblin installation
MEDIAGOBLIN_DOMAIN_NAME=
MEDIAGOBLIN_CODE=
MEDIAGOBLIN_REPO="git://git.savannah.gnu.org/mediagoblin.git"
MEDIAGOBLIN_COMMIT='d1ac2d52fd8859c3f32fa38e4836ffe9615e5bba'
MEDIAGOBLIN_ADMIN_PASSWORD=
MEDIAGOBLIN_ONION_PORT=8096

# Domain name for microblog installation
MICROBLOG_DOMAIN_NAME=
MICROBLOG_CODE=
MICROBLOG_ONION_PORT=8087
MICROBLOG_REPO="https://git.gnu.io/gnu/gnu-social.git"
MICROBLOG_COMMIT='c67b89e56bf0f90730a9e22beca7e1bd41fc26c3'
MICROBLOG_ADMIN_PASSWORD=
MICROBLOG_THEME_REPO="https://git.gnu.io/h2p/Qvitter.git"
MICROBLOG_THEME_COMMIT='e933ff9510fb3ff8a7a856b5a88002859c43b237'
MICROBLOG_WELCOME_MESSAGE=$'<h1>Welcome to GNU Social – a federated microblog</h1><p>Another Freedombone site</p>'
MICROBLOG_BACKGROUND_IMAGE_URL=
MICROBLOG_MARKDOWN_REPO="https://git.gnu.io/chimo/markdown.git"
MICROBLOG_MARKDOWN_COMMIT='03c53942f94b3376f0946e6e1fe566cc21ccf232'

# Domain name for hubzilla installation
HUBZILLA_DOMAIN_NAME=
HUBZILLA_CODE=
HUBZILLA_ONION_PORT=8085
HUBZILLA_REPO="https://github.com/redmatrix/hubzilla.git"
HUBZILLA_THEMES_REPO="https://github.com/DeadSuperHero/redmatrix-themes"
HUBZILLA_ADDONS_REPO="https://github.com/redmatrix/hubzilla-addons.git"
HUBZILLA_ADMIN_PASSWORD=
HUBZILLA_COMMIT='b6ae2bff01f8a4dfc057ef2971b3d988b1028b3e'
HUBZILLA_ADDONS_COMMIT='48725235777e2088fe109b722a5fc9141b6840ec'

# Domain name for git hosting installation
GIT_DOMAIN_NAME=
GIT_CODE=
GIT_ONION_PORT=8090
GIT_DOMAIN_REPO="https://github.com/gogits/gogs"
GIT_ADMIN_PASSWORD=
GOGS_COMMIT='3fb4f7f4980b4339fd9ef6a3ba5b0acab83d264d'
GO_PACKAGE_MANAGER_REPO="https://github.com/gpmgo/gopm"
GVM_REPO="https://github.com/moovweb/gvm"
GVM_COMMIT='25ea8ae158e2861c92e2b22c458e60840157832f'

# Syncthing
SYNCTHING_ID=
SYNCTHING_CONFIG_PATH=/root/.config/syncthing
SYNCTHING_CONFIG_FILE=$SYNCTHING_CONFIG_PATH/config.xml
SYNCTHING_RELAY_SERVER='https://relays.syncthing.net/endpoint'
SYNCTHING_RELEASES='https://api.github.com/repos/syncthing/syncthing/releases?per_page=30'
SYNCTHING_PORT=22000
SYNCTHING_SHARED_DATA=/var/lib/syncthing/SyncShared
SYNCTHING_USER_IDS_FILE='.syncthingids'

# Domain name for your wiki
WIKI_DOMAIN_NAME=
WIKI_ADMIN_PASSWORD=
WIKI_TITLE="${PROJECT_NAME} Wiki"
WIKI_CODE=
WIKI_ONION_PORT=8089

# Domain name for your blog
FULLBLOG_DOMAIN_NAME=
FULLBLOG_CODE=
FULLBLOG_ONION_PORT=8086
FULLBLOG_REPO="https://github.com/danpros/htmly"
FULLBLOG_COMMIT='bf5fe9486160be4da86d8987d3e5c977e1dc6d32'
MY_BLOG_TITLE="My Blog"
MY_BLOG_SUBTITLE="Another ${PROJECT_NAME} Blog"

# search engine
SEARCH_ENGINE_REPO="https://github.com/asciimoo/searx"
SEARCH_ENGINE_COMMIT='fee556c9904637051a9ba874ba7e71cd9f10789f'
SEARCH_ENGINE_PATH=/etc
SEARCH_ENGINE_ONION_PORT=8094
SEARCH_ENGINE_ONION_HOSTNAME=
SEARCH_ENGINE_LOGIN_TEXT=$"Search engine login"
SEARCH_ENGINE_PASSWORD=

GPG_KEYSERVER="hkp://keys.gnupg.net"

# whether to encrypt all incoming email with your public key
GPG_ENCRYPT_STORED_EMAIL="yes"

# gets set to yes if gpg keys are imported from usb
GPG_KEYS_IMPORTED="no"

# optionally you can provide your exported GPG key pair here
# Note that the private key file will be deleted after use
# If these are unspecified then a new GPG key will be created
MY_GPG_PUBLIC_KEY=
MY_GPG_PRIVATE_KEY=

# optionally specify your public key ID
MY_GPG_PUBLIC_KEY_ID=

# If you have existing mail within a Maildir
# you can specify the directory here and the files
# will be imported
IMPORT_MAILDIR=

# The Debian package repository to use.
DEBIAN_REPO="ftp.us.debian.org"

DEBIAN_VERSION="jessie"

# Directory where source code is downloaded and compiled
INSTALL_DIR=$HOME/build

# device name for an attached usb drive
USB_DRIVE=/dev/sda1

# Location where the USB drive is mounted to
USB_MOUNT=/mnt/usb

# name of a script used to upgrade the system
UPGRADE_SCRIPT_NAME="${PROJECT_NAME}-upgrade"

# name of a script which keeps running processes going even if they crash
WATCHDOG_SCRIPT_NAME="keepon"

# Number of days to keep backups for
BACKUP_MAX_DAYS=30

# memory limit for php in MB
MAX_PHP_MEMORY=64

# default MariaDB password
MARIADB_PASSWORD=

# Directory where XMPP settings are stored
XMPP_DIRECTORY="/var/lib/prosody"
XMPP_PASSWORD=

# file containing a list of remote locations to backup to
# Format: [username@friendsdomain//home/username] [ssh_password]
# With the only space character being between the server and the password
FRIENDS_SERVERS_LIST=/home/$MY_USERNAME/backup.list

# list of encryption protocols
SSL_PROTOCOLS="TLSv1 TLSv1.1 TLSv1.2"

# list of ciphers to use.  See bettercrypto.org recommendations
SSL_CIPHERS="EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA"

# ssh (from https://stribika.github.io/2015/01/04/secure-secure-shell.html)
SSH_CIPHERS="chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr"
SSH_MACS="hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com"
SSH_KEX="curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256"
SSH_HOST_KEY_ALGORITHMS="ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-ed25519,ssh-rsa"

# xmpp ciphers and curve
XMPP_CIPHERS='"EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA"'
XMPP_ECC_CURVE='"secp384r1"'

# the default email address
MY_EMAIL_ADDRESS=$MY_USERNAME@$DEFAULT_DOMAIN_NAME

# optionally specify your name to appear on the blog
MY_NAME=$DEFAULT_DOMAIN_NAME

export DEBIAN_FRONTEND=noninteractive

# logging level for Nginx
WEBSERVER_LOG_LEVEL='warn'

# used to limit CPU usage
CPULIMIT='/usr/bin/cpulimit -l 20 -e'

# command to create a git repository
CREATE_GIT_PROJECT_COMMAND='create-project'

# File which keeps track of what has already been installed
COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt

# Used to indicate whether the backup contains MariaDB databases or not
BACKUP_INCLUDES_DATABASES="no"

# contains the mysql root password which
# is used for backups and repair
DATABASE_PASSWORD_FILE=/root/dbpass

# log file where details of remote backups are stored
REMOTE_BACKUPS_LOG=/var/log/remotebackups.log

# message if something fails to install
CHECK_MESSAGE="Check your internet connection, /etc/network/interfaces and /etc/resolv.conf, then delete $COMPLETION_FILE, run 'rm -fR /var/lib/apt/lists/* && apt-get update --fix-missing' and run this script again. If hash sum mismatches persist then try setting $DEBIAN_REPO to a different mirror and also change /etc/apt/sources.list."

# web site used to obtain the external IP address of the system
GET_IP_ADDRESS_URL="checkip.two-dns.de"

# Password used for VoIP server
VOIP_SERVER_PASSWORD=
# Port on which VoIP server listens
VOIP_PORT=64738
SIP_SERVER_PASSWORD=
SIP_PORT=5060
SIP_TLS_PORT=5061
VOIP_TURN_PORT=3478
VOIP_TURN_TLS_PORT=5349
VOIP_TURN_NONCE=

# Location of VoIP database and configuration
VOIP_DATABASE="mumble-server.sqlite"
VOIP_CONFIG_FILE="mumble-server.ini"

# other possible services to obtain the external IP address
EXTERNAL_IP_SERVICES=( \
    'https://check.torproject.org/' \
        'https://www.whatsmydns.net/whats-my-ip-address.html' \
        'https://www.privateinternetaccess.com/pages/whats-my-ip/' \
        'http://checkip.two-dns.de' \
        'http://ip.dnsexit.com' \
        'http://ifconfig.me/ip' \
        'http://ipecho.net/plain' \
        'http://checkip.dyndns.org/plain' \
        'http://ipogre.com/linux.php' \
        'http://whatismyipaddress.com/' \
        'http://ip.my-proxy.com/' \
        'http://websiteipaddress.com/WhatIsMyIp' \
        'http://getmyipaddress.org/' \
        'http://www.my-ip-address.net/' \
        'http://myexternalip.com/raw' \
        'http://www.canyouseeme.org/' \
        'http://www.trackip.net/' \
        'http://icanhazip.com/' \
        'http://www.iplocation.net/' \
        'http://www.howtofindmyipaddress.com/' \
        'http://www.ipchicken.com/' \
        'http://whatsmyip.net/' \
        'http://www.ip-adress.com/' \
        'http://checkmyip.com/' \
        'http://www.tracemyip.org/' \
        'http://checkmyip.net/' \
        'http://www.lawrencegoetz.com/programs/ipinfo/' \
        'http://www.findmyip.co/' \
        'http://ip-lookup.net/' \
        'http://www.dslreports.com/whois' \
        'http://www.mon-ip.com/en/my-ip/' \
        'http://www.myip.ru' \
        'http://ipgoat.com/' \
        'http://www.myipnumber.com/my-ip-address.asp' \
        'http://www.whatsmyipaddress.net/' \
        'http://formyip.com/' \
        'http://www.displaymyip.com/' \
        'http://www.bobborst.com/tools/whatsmyip/' \
        'http://www.geoiptool.com/' \
        'http://checkip.dyndns.com/' \
        'http://myexternalip.com/' \
        'http://www.ip-adress.eu/' \
        'http://www.infosniper.net/' \
        'http://wtfismyip.com/' \
        'http://ipinfo.io/' \
        'http://httpbin.org/ip')

WIFI_CHANNEL=2
WIFI_INTERFACE=wlan0

# cjdns settings
ENABLE_CJDNS="no"
CJDNS_PRIVATE_KEY=
CJDNS_PUBLIC_KEY=
CJDNS_IPV6=
CJDNS_PASSWORD=
CJDNS_PORT=
CJDNS_REPO="https://github.com/cjdelisle/cjdns.git"
CJDNS_COMMIT='13189fde111d0500427a7a0ce06a970753527bca'
CJDCMD_REPO="https://github.com/inhies/cjdcmd"
CJDCMD_COMMIT='973cca6ed0eecf9041c3403a40193c0b1291b808'

# B.A.T.M.A.N settings
ENABLE_BATMAN="no"
BATMAN_CELLID='any'
ESSID='mesh'

# Babel mesh
ENABLE_BABEL="no"
BABEL_PORT=6696

# social key management
ENABLE_SOCIAL_KEY_MANAGEMENT="no"

TOX_PORT=33445
TOX_REPO="git://github.com/irungentoo/toxcore.git"
TOXID_REPO="https://github.com/bashrc/toxid"
TOX_COMMIT='532629d486e3361c7d8d95b38293cc7d61dc4ee5'
TOX_BOOTSTRAP_ID_FILE=/var/lib/tox-bootstrapd/pubkey.txt
# These are some default nodes, but you can replace them with trusted nodes
# as you prefer. See https://wiki.tox.im/Nodes
TOX_NODES=
#TOX_NODES=(
#  '192.254.75.102,2607:5600:284::2,33445,951C88B7E75C867418ACDB5D273821372BB5BD652740BCDF623A4FA293E75D2F,Tox RELENG,US'
#  '144.76.60.215,2a01:4f8:191:64d6::1,33445,04119E835DF3E78BACF0F84235B300546AF8B936F035185E2A8E9E0A67C8924F,sonOfRa,DE'
#)
TOXIC_REPO="https://github.com/Tox/toxic"
TOXIC_COMMIT='4e0e322e32b0d7b5d1692f72876ac7f9ae2e610a'
TOXIC_FILE=/usr/local/bin/toxic

ZERONET_REPO="https://github.com/HelloZeroNet/ZeroNet.git"
ZERONET_COMMIT='675bd462556c541d65e2d95f91f899146a373aad'
ZERONET_BLOG_REPO="https://github.com/HelloZeroNet/ZeroBlog"
ZERONET_BLOG_COMMIT='bbb0d6c36465fed2e6df71f1aab45fcc9c6ad609'
ZERONET_MAIL_REPO="https://github.com/HelloZeroNet/ZeroMail"
ZERONET_MAIL_COMMIT='955af09d643c72b02e4983d71eca5c0c93a6c131'
ZERONET_FORUM_REPO="https://github.com/HelloZeroNet/ZeroTalk"
ZERONET_FORUM_COMMIT='e2d2c9cb1cfbfef91b244935efb5c14c2ad95faa'
ZERONET_URL=http://127.0.0.1:43110
ZERONET_PORT=15441
TRACKER_PORT=6969
ZERONET_DEFAULT_BLOG_TAGLINE="Blogging on the Mesh"
ZERONET_DEFAULT_FORUM_TAGLINE="A decentralized discussion group"
ZERONET_DEFAULT_MAIL_TAGLINE="Mail for the Mesh"

# https://github.com/ipfs/go-ipfs
IPFS_GO_REPO="https://github.com/ipfs/go-ipfs"
IPFS_COMMIT='20b06a4cbce8884f5b194da6e98cb11f2c77f166'
IPFS_PORT=4001

GPGIT_REPO="https://github.com/mikecardwell/gpgit"
GPGIT_COMMIT='583dc76119f19420f8a33f606744faa7c8922738'

# Default diffie-hellman key length in bits
DH_KEYLENGTH=2048

# repo for atheros AR9271 wifi driver
ATHEROS_WIFI_REPO="https://github.com/qca/open-ath9k-htc-firmware.git"

# Whether Let's Encrypt is enabled for all sites
LETSENCRYPT_ENABLED="no"
LETSENCRYPT_SERVER='https://acme-v01.api.letsencrypt.org/directory'

RSS_READER_REPO="https://tt-rss.org/git/tt-rss.git"
RSS_READER_COMMIT='9e84bab449f9ed55e02e60378b0af1521026f3b8'
RSS_READER_ADMIN_PASSWORD=
RSS_READER_ONION_PORT=8092
RSS_MOBILE_READER_ONION_PORT=8095
RSS_READER_DOMAIN_NAME=ttrss
RSS_MOBILE_READER_REPO="https://github.com/mboinet/ttrss-mobile"
RSS_MOBILE_READER_COMMIT='d5242e1c269e9480ab3b66b7a38da3c892dfb326'
RSS_READER_PATH=/etc/share/tt-rss
RSS_READER_GNUSOCIAL_REPO="https://github.com/bashrc/ttrss-gnusocial"
RSS_READER_GNUSOCIAL_COMMIT='8b92b8f5db7b0d12459c7bd86a50f48815efe642'

function show_help {
    echo ''
    echo $"${PROJECT_NAME} -c [configuration file]"
    echo ''
    echo $'  -h --help             Show help'
    echo $'     menuconfig         Easy interactive installation'
    echo $'     menuconfig-full    Full interactive installation'
    echo $'     menuconfig-onion   Interactive installation for onion-only sites'
    echo $'  -c --config           Installing from a configuration file'
    echo $'     --bbb              Installing on Beaglebone Black'
    echo $'  -u --user             User to install the system as'
    echo $'  -d --domain           Default domain name'
    echo $'  -s --system           System type'
    echo $'     --ip               Static LAN IP address of the system'
    echo $'     --iprouter         LAN IP address of the internet router'
    echo $'     --ddns             Dynamic DNS provider domain'
    echo $'     --ddnsuser         Dynamic DNS provider username'
    echo $'     --ddnspass         Dynamic DNS provider password'
    echo ''
    echo $'     --microblogdomain  Microblog domain name'
    echo $'     --wikidomain       Wiki domain name'
    echo $'     --blogdomain       Blog domain name'
    echo $'     --hubzilladomain   Hubzilla domain name'
    echo $'     --gitdomain        Git hosting domain name'
    echo $'  -t --time             Domain used as a TLS time source'
    echo $'     --ssh              ssh port number'
    echo $'     --list             Public mailing list name'
    echo $'     --cores            Number of CPU cores'
    echo $'     --name             Your name'
    echo $'     --email            Your email address'
    echo $'     --usb              Path for the USB drive (eg. /dev/sdb1)'
    echo $'     --cjdns            Enable CJDNS'
    echo $'     --vpass            VoIP server password'
    echo $'     --vport            VoIP server port'
    echo $'     --ns1              First DNS nameserver'
    echo $'     --ns2              Second DNS nameserver'
    echo $'     --repo             Debian repository'
    echo ''
    echo $'system types'
    echo '------------'
    echo $'This can either be blank if you wish to install the full system,'
    echo $"or for more specialised variants you can specify '$VARIANT_MAILBOX', '$VARIANT_CLOUD',"
    echo $"'$VARIANT_CHAT', '$VARIANT_SOCIAL', '$VARIANT_MEDIA', '$VARIANT_WRITER', '$VARIANT_DEVELOPER'"
    echo $"or '$VARIANT_MESH'."
    echo ''
    echo $"If you wish to install everything except email then use the '$VARIANT_NONMAILBOX' variaint."
    echo ''
    exit 0
}

function git_clone {
    repo_url="$1"
    destination_dir="$2"
    if [[ "$repo_url" == "ssh:"* ]]; then
        if [ "${FRIENDS_MIRRORS_SERVER}" ]; then
            if [ ${#FRIENDS_MIRRORS_SERVER} -gt 2 ]; then
                if [ "$FRIENDS_MIRRORS_PASSWORD" ]; then
                    if [ ${#FRIENDS_MIRRORS_PASSWORD} -gt 2 ]; then
                        sshpass -p "$FRIENDS_MIRRORS_PASSWORD" git clone "$repo_url" "$destination_dir"
                        return
                    fi
                fi
            fi
        fi
    fi
    git clone "$repo_url" "$destination_dir"
}

function git_pull {
    if [ ! $1 ]; then
        echo $'git_pull no repo specified'
    fi

    git stash
    git remote set-url origin $1
    git checkout master
    if [ "${FRIENDS_MIRRORS_SERVER}" ]; then
        if [ ${#FRIENDS_MIRRORS_SERVER} -gt 2 ]; then
            if [ "$FRIENDS_MIRRORS_PASSWORD" ]; then
                if [ ${#FRIENDS_MIRRORS_PASSWORD} -gt 2 ]; then
                    sshpass -p "$FRIENDS_MIRRORS_PASSWORD" git pull
                    if [ $2 ]; then
                        git checkout $2 -b $2
                    fi
                    return
                fi
            fi
        fi
    fi
    git pull

    if [ $2 ]; then
        git checkout $2 -b $2
    fi
}

function remove_database {
    app_name="$1"
    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    echo "drop database ${app_name};
quit" > $INSTALL_DIR/batch.sql
    chmod 600 $INSTALL_DIR/batch.sql
    mysql -u root --password="$MARIADB_PASSWORD" < $INSTALL_DIR/batch.sql
    shred -zu $INSTALL_DIR/batch.sql
}

function create_database {
    app_name="$1"
    app_admin_password="$2"
    app_admin_username=$3
    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    if [ ! $app_admin_username ]; then
        app_admin_username=${app_name}admin
    fi
    echo "create database ${app_name};
CREATE USER '$app_admin_username@localhost' IDENTIFIED BY '${app_admin_password}';
GRANT ALL PRIVILEGES ON ${app_name}.* TO '$app_admin_username@localhost';
quit" > $INSTALL_DIR/batch.sql
    chmod 600 $INSTALL_DIR/batch.sql
    mysql -u root --password="$MARIADB_PASSWORD" < $INSTALL_DIR/batch.sql
    shred -zu $INSTALL_DIR/batch.sql
}

function locale_setup {
    if grep -Fxq "locale_setup" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install locales locales-all debconf

    if [ ! "$DEFAULT_LANGUAGE" ]; then
        DEFAULT_LANGUAGE='en_GB.UTF-8'
    fi
    if [ ${#DEFAULT_LANGUAGE} -lt 2 ]; then
        DEFAULT_LANGUAGE='en_GB.UTF-8'
    fi

    update-locale LANG=${DEFAULT_LANGUAGE}
    update-locale LANGUAGE=${DEFAULT_LANGUAGE}
    update-locale LC_MESSAGES=${DEFAULT_LANGUAGE}
    update-locale LC_ALL=${DEFAULT_LANGUAGE}
    update-locale LC_CTYPE=${DEFAULT_LANGUAGE}

    echo 'locale_setup' >> $COMPLETION_FILE
}

function interactive_configuration_remote_backups {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! -f /usr/local/bin/${PROJECT_NAME}-remote ]; then
        if [ ! -f /usr/bin/${PROJECT_NAME}-remote ]; then
            echo $"The command ${PROJECT_NAME}-remote was not found"
            exit 87354
        fi
    fi
    ${PROJECT_NAME}-remote -u $MY_USERNAME -l $FRIENDS_SERVERS_LIST -m $MINIMUM_PASSWORD_LENGTH -r yes
    if [ ! "$?" = "0" ]; then
        echo $'Command failed:'
        echo ''
        echo $"  ${PROJECT_NAME}-remote -u $MY_USERNAME -l $FRIENDS_SERVERS_LIST -m $MINIMUM_PASSWORD_LENGTH -r yes"
        echo ''
        exit 65892
    fi
}

# test a domain name to see if it's valid
function validate_domain_name {
    # count the number of dots in the domain name
    dots=${TEST_DOMAIN_NAME//[^.]}
    no_of_dots=${#dots}
    if (( $no_of_dots > 3 )); then
        TEST_DOMAIN_NAME=$"The domain $TEST_DOMAIN_NAME has too many subdomains. It should be of the type w.x.y.z, x.y.z or y.z"
    fi
    if (( $no_of_dots == 0 )); then
        TEST_DOMAIN_NAME=$"The domain $TEST_DOMAIN_NAME has no top level domain. It should be of the type w.x.y.z, x.y.z or y.z"
    fi
}

function interactive_configuration {
    if [ ! -f /usr/local/bin/${PROJECT_NAME}-config ]; then
        if [ ! -f /usr/bin/${PROJECT_NAME}-config ]; then
            echo $"The command ${PROJECT_NAME}-config was not found"
            exit 63935
        fi
    fi
    if [ -f /tmp/meshuserdevice ]; then
        rm -f /tmp/meshuserdevice
    fi

    if [[ $ONION_ONLY == "no" ]]; then
        if [[ $MINIMAL_INSTALL == "no" ]]; then
            ${PROJECT_NAME}-config \
                           -f $CONFIGURATION_FILE \
                           -w $PROJECT_WEBSITE \
                           -b $PROJECT_BITMESSAGE \
                           -m $MINIMUM_PASSWORD_LENGTH
        else
            ${PROJECT_NAME}-config \
                           -f $CONFIGURATION_FILE \
                           -w $PROJECT_WEBSITE \
                           -b $PROJECT_BITMESSAGE \
                           -m $MINIMUM_PASSWORD_LENGTH \
                           --minimal "yes"
        fi
    else
        ${PROJECT_NAME}-config \
                       -f $CONFIGURATION_FILE \
                       -w $PROJECT_WEBSITE \
                       -b $PROJECT_BITMESSAGE \
                       -m $MINIMUM_PASSWORD_LENGTH \
                       --onion "yes"
    fi
    if [ -f /tmp/meshuserdevice ]; then
        # mesh network user device installation
        rm -f /tmp/meshuserdevice
        exit 0
    fi
    if [ ! "$?" = "0" ]; then
        echo $'Command failed:'
        echo ''
        echo $"  ${PROJECT_NAME}-config -u $MY_USERNAME -f $CONFIGURATION_FILE -w $PROJECT_WEBSITE -b $PROJECT_BITMESSAGE -m $MINIMUM_PASSWORD_LENGTH --minimal [yes|no]"
        echo ''
        exit 73594
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        FRIENDS_SERVERS_LIST=/home/$MY_USERNAME/backup.list

        dialog --title $"Encrypted backup to other servers" \
               --backtitle $"${PROJECT_NAME} Configuration" \
               --defaultno \
               --yesno $"\nDo you wish to configure some remote backup locations?" 7 60
        sel=$?
        case $sel in
            0) interactive_configuration_remote_backups;;
        esac
    fi
}

command_options=$1

if [[ $command_options == "menuconfig-full" ]]; then
    MINIMAL_INSTALL="no"
    command_options="menuconfig"
fi

if [[ $command_options == "menuconfig-onion" ]]; then
    MINIMAL_INSTALL="yes"
    ONION_ONLY="yes"
    command_options="menuconfig"
fi

if [[ $command_options == "menuconfig" ]]; then
    interactive_configuration
else
    while [[ $# > 1 ]]
    do
        key="$1"

        case $key in
            -h|--help)
                show_help
                ;;
            # load a configuration file
            -c|--config)
                shift
                CONFIGURATION_FILE="$1"
                INSTALLING_FROM_CONFIGURATION_FILE="yes"
                break
                ;;
            # username within /home
            -u|--user)
                shift
                MY_USERNAME="$1"
                ;;
            # microblog domain name
            --microblogdomain)
                shift
                MICROBLOG_DOMAIN_NAME="$1"
                ;;
            # wiki domain name
            --wikidomain)
                shift
                WIKI_DOMAIN_NAME="$1"
                ;;
            # blog domain name
            --blogdomain)
                shift
                FULLBLOG_DOMAIN_NAME="$1"
                ;;
            # hubzilla domain name
            --hubzilladomain)
                shift
                HUBZILLA_DOMAIN_NAME="$1"
                ;;
            # git hosting domain name
            --gitdomain)
                shift
                GIT_DOMAIN_NAME="$1"
                ;;
            # default domain name
            -d|--domain)
                shift
                DEFAULT_DOMAIN_NAME="$1"
                ;;
            # The type of system
            -s|--system)
                shift
                SYSTEM_TYPE="$1"
                ;;
            # The dynamic DNS provider
            --ddns)
                shift
                DDNS_PROVIDER="$1"
                ;;
            # Username for the synamic DNS provider
            --ddnsuser)
                shift
                DDNS_USERNAME="$1"
                ;;
            # Password for the synamic DNS provider
            --ddnspass)
                shift
                DDNS_PASSWORD="$1"
                ;;
            # Whether this installation is on a Beaglebone Black
            --bbb)
                INSTALLING_ON_BBB="yes"
                ;;
            # Domain name to use as a TLS time source
            -t|--time)
                shift
                TLS_TIME_SOURCE1="$1"
                ;;
            # Static IP address for the system
            --ip)
                shift
                LOCAL_NETWORK_STATIC_IP_ADDRESS=$1
                ;;
            # IP address for the internet router
            --iprouter)
                shift
                ROUTER_IP_ADDRESS=$1
                ;;
            # ssh port
            --ssh)
                shift
                SSH_PORT=$1
                ;;
            # public mailing list name
            --list)
                shift
                PUBLIC_MAILING_LIST="$1"
                ;;
            # Number of CPU cores
            --cores)
                shift
                CPU_CORES=$1
                ;;
            # my name
            --name)
                shift
                MY_NAME="$1"
                ;;
            # my email address
            --email)
                shift
                MY_EMAIL_ADDRESS="$1"
                ;;
            # USB drive
            --usb)
                shift
                USB_DRIVE=$1
                ;;
            # Enable CJDNS
            --cjdns)
                shift
                ENABLE_CJDNS="yes"
                ;;
            # Enable B.A.T.M.A.N
            --batman)
                shift
                ENABLE_BATMAN="yes"
                ;;
            # Enable Babel
            --babel)
                shift
                ENABLE_BABEL="yes"
                ;;
            # VoIP server password
            --vpass)
                shift
                VOIP_SERVER_PASSWORD=$1
                ;;
            # VoIP server port
            --vport)
                shift
                VOIP_PORT=$1
                ;;
            # DNS Nameserver 1
            --ns1)
                shift
                NAMESERVER1=$1
                ;;
            # DNS Nameserver 2
            --ns2)
                shift
                NAMESERVER2=$1
                ;;
            # Debian repository
            --repo)
                shift
                DEBIAN_REPO=$1
                ;;
            # minimal install
            --minimal)
                shift
                MINIMAL_INSTALL=$1
                ;;
            *)
                # unknown option
                ;;
        esac
        shift
    done
fi

function parse_args {
    if [[ $NO_OF_ARGS == 0 ]]; then
        echo 'no_of_args = 0'
        show_help
        exit 0
    fi

    if [ ! -d /home/$MY_USERNAME ]; then
        echo $"There is no user '$MY_USERNAME' on the system. Use 'adduser $MY_USERNAME' to create the user."
        exit 1
    fi
    if [ ! "$DEFAULT_DOMAIN_NAME" ]; then
        if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
            echo 'No default domain specified'
            show_help
            exit 2
        fi
    fi
    if [ ! $MY_USERNAME ]; then
        echo 'No username specified'
        show_help
        exit 3
    fi
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        if [[ $ONION_ONLY == "no" ]]; then
            if [ ! $DDNS_USERNAME ]; then
                echo $'Please provide the username for your dynamic DNS provider with the --ddnsuser option'
                exit 7823
            fi
            if [ ! $DDNS_PASSWORD ]; then
                echo $'Please provide the password for your dynamic DNS provider with the --ddnspass option'
                exit 6382
            fi
        fi
    fi
    if [ ! $SYSTEM_TYPE ]; then
        SYSTEM_TYPE=$VARIANT_FULL
    fi
    if [[ $SYSTEM_TYPE != $VARIANT_WRITER && $SYSTEM_TYPE != $VARIANT_CLOUD && $SYSTEM_TYPE != $VARIANT_CHAT && $SYSTEM_TYPE != $VARIANT_MAILBOX && $SYSTEM_TYPE != $VARIANT_NONMAILBOX && $SYSTEM_TYPE != $VARIANT_SOCIAL && $SYSTEM_TYPE != $VARIANT_MEDIA && $SYSTEM_TYPE != $VARIANT_DEVELOPER && $SYSTEM_TYPE != $VARIANT_MESH && $SYSTEM_TYPE != $VARIANT_FULL ]]; then
        echo $"'$SYSTEM_TYPE' is an unrecognised ${PROJECT_NAME} variant."
        exit 30
    fi
}

function read_repo_servers {
    if [ -f $CONFIGURATION_FILE ]; then
        if grep -q "FRIENDS_MIRRORS_SERVER" $CONFIGURATION_FILE; then
            FRIENDS_MIRRORS_SERVER=$(grep "FRIENDS_MIRRORS_SERVER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FRIENDS_MIRRORS_SSH_PORT" $CONFIGURATION_FILE; then
            FRIENDS_MIRRORS_SSH_PORT=$(grep "FRIENDS_MIRRORS_SSH_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_MIRRORS_PASSWORD" $CONFIGURATION_FILE; then
            MY_MIRRORS_PASSWORD=$(grep "MY_MIRRORS_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FRIENDS_MIRRORS_PASSWORD" $CONFIGURATION_FILE; then
            FRIENDS_MIRRORS_PASSWORD=$(grep "FRIENDS_MIRRORS_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
    fi

    if [ ! $FRIENDS_MIRRORS_SERVER ]; then
        return
    fi
    if [ ${#FRIENDS_MIRRORS_SERVER} -lt 2 ]; then
        return
    fi

    MAIN_COMMAND=/usr/local/bin/${PROJECT_NAME}
    if [ ! -f $MAIN_COMMAND ]; then
        MAIN_COMMAND=/usr/bin/${PROJECT_NAME}
    fi

    REPOS=($(cat ${MAIN_COMMAND} | grep "_REPO=\"" | uniq -u | sed 's|${PROJECT_NAME}|'"${PROJECT_NAME}"'|g'))

    for line in "${REPOS[@]}"
    do
        repo_name=$(echo "$line" | awk -F '=' '{print $1}')
        mirrors_name=$(echo "$repo_name" | sed "s|_REPO||g" | awk '{print tolower($0)}')
        friends_repo_url="ssh://mirrors@${FRIENDS_MIRRORS_SERVER}:${FRIENDS_MIRRORS_SSH_PORT}/home/mirrors/${mirrors_name}"
        ${repo_name}="${friends_repo_url}"
    done
}

function read_configuration {
    # if not installing on a Beaglebone then use sdb as the USB drive by default
    if [ ! $INSTALLING_ON_BBB ]; then
        if [[ $USB_DRIVE == /dev/sda1 ]]; then
            USB_DRIVE=/dev/sdb1
        fi
    fi

    if [[ $INSTALLING_FROM_CONFIGURATION_FILE == "yes"  ]]; then
        if [ ! -f $CONFIGURATION_FILE ]; then
            echo $"The configuration file $CONFIGURATION_FILE was not found"
            exit 8935
        fi
    fi

    if [ -f $CONFIGURATION_FILE ]; then
        read_repo_servers

        # Ensure that a copy of the config exists for upgrade purposes
        if [[ $CONFIGURATION_FILE != "/root/${PROJECT_NAME}.cfg" ]]; then
            cp $CONFIGURATION_FILE /root/${PROJECT_NAME}.cfg
        fi
        if grep -q "SYNCTHING_ID" $CONFIGURATION_FILE; then
            SYNCTHING_ID=$(grep "SYNCTHING_ID" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_CONFIG_PATH" $CONFIGURATION_FILE; then
            SYNCTHING_CONFIG_PATH=$(grep "SYNCTHING_CONFIG_PATH" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_CONFIG_FILE" $CONFIGURATION_FILE; then
            SYNCTHING_CONFIG_FILE=$(grep "SYNCTHING_CONFIG_FILE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_RELAY_SERVER" $CONFIGURATION_FILE; then
            SYNCTHING_RELAY_SERVER=$(grep "SYNCTHING_RELAY_SERVER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_RELEASES" $CONFIGURATION_FILE; then
            SYNCTHING_RELEASES=$(grep "SYNCTHING_RELEASES" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_PORT" $CONFIGURATION_FILE; then
            SYNCTHING_PORT=$(grep "SYNCTHING_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYNCTHING_SHARED_DATA" $CONFIGURATION_FILE; then
            SYNCTHING_SHARED_DATA=$(grep "SYNCTHING_SHARED_DATA" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "VOIP_TURN_PORT" $CONFIGURATION_FILE; then
            VOIP_TURN_PORT=$(grep "VOIP_TURN_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "VOIP_TURN_TLS_PORT" $CONFIGURATION_FILE; then
            VOIP_TURN_TLS_PORT=$(grep "VOIP_TURN_TLS_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "VOIP_TURN_NONCE" $CONFIGURATION_FILE; then
            VOIP_TURN_NONCE=$(grep "VOIP_TURN_NONCE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DEFAULT_SEARCH" $CONFIGURATION_FILE; then
            DEFAULT_SEARCH=$(grep "DEFAULT_SEARCH" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SEARCH_ENGINE_PASSWORD" $CONFIGURATION_FILE; then
            SEARCH_ENGINE_PASSWORD=$(grep "SEARCH_ENGINE_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "XMPP_PASSWORD" $CONFIGURATION_FILE; then
            XMPP_PASSWORD=$(grep "XMPP_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_READER_REPO" $CONFIGURATION_FILE; then
            RSS_READER_REPO=$(grep "RSS_READER_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_MOBILE_READER_REPO" $CONFIGURATION_FILE; then
            RSS_MOBILE_READER_REPO=$(grep "RSS_MOBILE_READER_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_READER_COMMIT" $CONFIGURATION_FILE; then
            RSS_READER_COMMIT=$(grep "RSS_READER_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_MOBILE_READER_COMMIT" $CONFIGURATION_FILE; then
            RSS_MOBILE_READER_COMMIT=$(grep "RSS_MOBILE_READER_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_READER_ADMIN_PASSWORD" $CONFIGURATION_FILE; then
            RSS_READER_ADMIN_PASSWORD=$(grep "RSS_READER_ADMIN_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "RSS_READER_DOMAIN_NAME" $CONFIGURATION_FILE; then
            RSS_READER_DOMAIN_NAME=$(grep "RSS_READER_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MICROBLOG_BACKGROUND_IMAGE_URL" $CONFIGURATION_FILE; then
            MICROBLOG_BACKGROUND_IMAGE_URL=$(grep "MICROBLOG_BACKGROUND_IMAGE_URL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MICROBLOG_WELCOME_MESSAGE" $CONFIGURATION_FILE; then
            MICROBLOG_WELCOME_MESSAGE=$(grep "MICROBLOG_WELCOME_MESSAGE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "PROJECT_WEBSITE" $CONFIGURATION_FILE; then
            PROJECT_WEBSITE=$(grep "PROJECT_WEBSITE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "PROJECT_REPO" $CONFIGURATION_FILE; then
            PROJECT_REPO=$(grep "PROJECT_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ONION_ONLY" $CONFIGURATION_FILE; then
            ONION_ONLY=$(grep "ONION_ONLY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "IRC_PASSWORD" $CONFIGURATION_FILE; then
            IRC_PASSWORD=$(grep "IRC_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DEFAULT_LANGUAGE" $CONFIGURATION_FILE; then
            DEFAULT_LANGUAGE=$(grep "DEFAULT_LANGUAGE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MINIMAL_INSTALL" $CONFIGURATION_FILE; then
            MINIMAL_INSTALL=$(grep "MINIMAL_INSTALL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "LETSENCRYPT_SERVER" $CONFIGURATION_FILE; then
            LETSENCRYPT_SERVER=$(grep "LETSENCRYPT_SERVER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FULLBLOG_REPO" $CONFIGURATION_FILE; then
            FULLBLOG_REPO=$(grep "FULLBLOG_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FULLBLOG_COMMIT" $CONFIGURATION_FILE; then
            FULLBLOG_COMMIT=$(grep "FULLBLOG_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GOGS_COMMIT" $CONFIGURATION_FILE; then
            GOGS_COMMIT=$(grep "GOGS_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TOX_COMMIT" $CONFIGURATION_FILE; then
            TOX_COMMIT=$(grep "TOX_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TOXIC_COMMIT" $CONFIGURATION_FILE; then
            TOXIC_COMMIT=$(grep "TOXIC_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GPGIT_REPO" $CONFIGURATION_FILE; then
            GPGIT_REPO=$(grep "GPGIT_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GPGIT_COMMIT" $CONFIGURATION_FILE; then
            GPGIT_COMMIT=$(grep "GPGIT_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "HUBZILLA_REPO" $CONFIGURATION_FILE; then
            HUBZILLA_REPO=$(grep "HUBZILLA_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "HUBZILLA_COMMIT" $CONFIGURATION_FILE; then
            HUBZILLA_COMMIT=$(grep "HUBZILLA_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "IPFS_COMMIT" $CONFIGURATION_FILE; then
            IPFS_COMMIT=$(grep "IPFS_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ZERONET_BLOG_COMMIT" $CONFIGURATION_FILE; then
            ZERONET_BLOG_COMMIT=$(grep "ZERONET_BLOG_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ZERONET_MAIL_COMMIT" $CONFIGURATION_FILE; then
            ZERONET_MAIL_COMMIT=$(grep "ZERONET_MAIL_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ZERONET_FORUM_COMMIT" $CONFIGURATION_FILE; then
            ZERONET_FORUM_COMMIT=$(grep "ZERONET_FORUM_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MICROBLOG_COMMIT" $CONFIGURATION_FILE; then
            MICROBLOG_COMMIT=$(grep "MICROBLOG_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "NGINX_ENSITE_REPO" $CONFIGURATION_FILE; then
            NGINX_ENSITE_REPO=$(grep "NGINX_ENSITE_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "NGINX_ENSITE_COMMIT" $CONFIGURATION_FILE; then
            NGINX_ENSITE_COMMIT=$(grep "NGINX_ENSITE_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CLEANUP_MAILDIR_COMMIT" $CONFIGURATION_FILE; then
            CLEANUP_MAILDIR_COMMIT=$(grep "CLEANUP_MAILDIR_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CLEANUP_MAILDIR_REPO" $CONFIGURATION_FILE; then
            CLEANUP_MAILDIR_REPO=$(grep "CLEANUP_MAILDIR_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ZERONET_COMMIT" $CONFIGURATION_FILE; then
            ZERONET_COMMIT=$(grep "ZERONET_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "INADYN_REPO" $CONFIGURATION_FILE; then
            INADYN_REPO=$(grep "INADYN_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "INADYN_COMMIT" $CONFIGURATION_FILE; then
            INADYN_COMMIT=$(grep "INADYN_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GPG_KEYSERVER" $CONFIGURATION_FILE; then
            GPG_KEYSERVER=$(grep "GPG_KEYSERVER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "IPFS_PORT" $CONFIGURATION_FILE; then
            IPFS_PORT=$(grep "IPFS_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TRACKER_PORT" $CONFIGURATION_FILE; then
            TRACKER_PORT=$(grep "TRACKER_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ZERONET_PORT" $CONFIGURATION_FILE; then
            ZERONET_PORT=$(grep "ZERONET_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DH_KEYLENGTH" $CONFIGURATION_FILE; then
            DH_KEYLENGTH=$(grep "DH_KEYLENGTH" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WIFI_INTERFACE" $CONFIGURATION_FILE; then
            WIFI_INTERFACE=$(grep "WIFI_INTERFACE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "IRC_PORT" $CONFIGURATION_FILE; then
            IRC_PORT=$(grep "IRC_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WIFI_CHANNEL" $CONFIGURATION_FILE; then
            WIFI_CHANNEL=$(grep "WIFI_CHANNEL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "BATMAN_CELLID" $CONFIGURATION_FILE; then
            BATMAN_CELLID=$(grep "BATMAN_CELLID" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ESSID" $CONFIGURATION_FILE; then
            ESSID=$(grep "ESSID" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TOX_PORT" $CONFIGURATION_FILE; then
            TOX_PORT=$(grep "TOX_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TOX_NODES" $CONFIGURATION_FILE; then
            TOX_NODES=$(grep "TOX_NODES" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TOX_REPO" $CONFIGURATION_FILE; then
            TOX_REPO=$(grep "TOX_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ENABLE_SOCIAL_KEY_MANAGEMENT" $CONFIGURATION_FILE; then
            ENABLE_SOCIAL_KEY_MANAGEMENT=$(grep "ENABLE_SOCIAL_KEY_MANAGEMENT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "IPV6_NETWORK" $CONFIGURATION_FILE; then
            IPV6_NETWORK=$(grep "IPV6_NETWORK" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "HWRNG_TYPE" $CONFIGURATION_FILE; then
            HWRNG_TYPE=$(grep "HWRNG_TYPE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MEDIAGOBLIN_DOMAIN_NAME" $CONFIGURATION_FILE; then
            MEDIAGOBLIN_DOMAIN_NAME=$(grep "MEDIAGOBLIN_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MEDIAGOBLIN_CODE" $CONFIGURATION_FILE; then
            MEDIAGOBLIN_CODE=$(grep "MEDIAGOBLIN_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MEDIAGOBLIN_REPO" $CONFIGURATION_FILE; then
            MEDIAGOBLIN_REPO=$(grep "MEDIAGOBLIN_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MEDIAGOBLIN_COMMIT" $CONFIGURATION_FILE; then
            MEDIAGOBLIN_COMMIT=$(grep "MEDIAGOBLIN_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GIT_ADMIN_PASSWORD" $CONFIGURATION_FILE; then
            GIT_ADMIN_PASSWORD=$(grep "GIT_ADMIN_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GIT_DOMAIN_NAME" $CONFIGURATION_FILE; then
            GIT_DOMAIN_NAME=$(grep "GIT_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GIT_CODE" $CONFIGURATION_FILE; then
            GIT_CODE=$(grep "GIT_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SYSTEM_TYPE" $CONFIGURATION_FILE; then
            SYSTEM_TYPE=$(grep "SYSTEM_TYPE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSL_PROTOCOLS" $CONFIGURATION_FILE; then
            SSL_PROTOCOLS=$(grep "SSL_PROTOCOLS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSL_CIPHERS" $CONFIGURATION_FILE; then
            SSL_CIPHERS=$(grep "SSL_CIPHERS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_CIPHERS" $CONFIGURATION_FILE; then
            SSH_CIPHERS=$(grep "SSH_CIPHERS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_MACS" $CONFIGURATION_FILE; then
            SSH_MACS=$(grep "SSH_MACS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_KEX" $CONFIGURATION_FILE; then
            SSH_KEX=$(grep "SSH_KEX" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_HOST_KEY_ALGORITHMS" $CONFIGURATION_FILE; then
            SSH_HOST_KEY_ALGORITHMS=$(grep "SSH_HOST_KEY_ALGORITHMS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_PASSWORDS" $CONFIGURATION_FILE; then
            SSH_PASSWORDS=$(grep "SSH_PASSWORDS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "XMPP_CIPHERS" $CONFIGURATION_FILE; then
            XMPP_CIPHERS=$(grep "XMPP_CIPHERS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "XMPP_ECC_CURVE" $CONFIGURATION_FILE; then
            XMPP_ECC_CURVE=$(grep "XMPP_ECC_CURVE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_USERNAME" $CONFIGURATION_FILE; then
            MY_USERNAME=$(grep "MY_USERNAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DOMAIN_NAME" $CONFIGURATION_FILE; then
            # for backwards compatability
            DEFAULT_DOMAIN_NAME=$(grep "DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DEFAULT_DOMAIN_NAME" $CONFIGURATION_FILE; then
            DEFAULT_DOMAIN_NAME=$(grep "DEFAULT_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DEFAULT_DOMAIN_CODE" $CONFIGURATION_FILE; then
            DEFAULT_DOMAIN_CODE=$(grep "DEFAULT_DOMAIN_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "NAMESERVER1" $CONFIGURATION_FILE; then
            NAMESERVER1=$(grep "NAMESERVER1" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "NAMESERVER2" $CONFIGURATION_FILE; then
            NAMESERVER2=$(grep "NAMESERVER2" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DEBIAN_REPO" $CONFIGURATION_FILE; then
            DEBIAN_REPO=$(grep "DEBIAN_REPO" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
            CHECK_MESSAGE=$"Check your internet connection, /etc/network/interfaces and /etc/resolv.conf, then delete $COMPLETION_FILE, run 'rm -fR /var/lib/apt/lists/* && apt-get update --fix-missing' and run this script again. If hash sum mismatches persist then try setting $DEBIAN_REPO to a different mirror and also change /etc/apt/sources.list."
        fi
        if grep -q "VOIP_PORT" $CONFIGURATION_FILE; then
            VOIP_PORT=$(grep "VOIP_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "VOIP_SERVER_PASSWORD" $CONFIGURATION_FILE; then
            VOIP_SERVER_PASSWORD=$(grep "VOIP_SERVER_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SIP_PORT" $CONFIGURATION_FILE; then
            SIP_PORT=$(grep "SIP_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SIP_TLS_PORT" $CONFIGURATION_FILE; then
            SIP_TLS_PORT=$(grep "SIP_TLS_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SIP_SERVER_PASSWORD" $CONFIGURATION_FILE; then
            SIP_SERVER_PASSWORD=$(grep "SIP_SERVER_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GET_IP_ADDRESS_URL" $CONFIGURATION_FILE; then
            GET_IP_ADDRESS_URL=$(grep "GET_IP_ADDRESS_URL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DDNS_PROVIDER" $CONFIGURATION_FILE; then
            DDNS_PROVIDER=$(grep "DDNS_PROVIDER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DDNS_USERNAME" $CONFIGURATION_FILE; then
            DDNS_USERNAME=$(grep "DDNS_USERNAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "DDNS_PASSWORD" $CONFIGURATION_FILE; then
            DDNS_PASSWORD=$(grep "DDNS_PASSWORD" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "LOCAL_NETWORK_STATIC_IP_ADDRESS" $CONFIGURATION_FILE; then
            LOCAL_NETWORK_STATIC_IP_ADDRESS=$(grep "LOCAL_NETWORK_STATIC_IP_ADDRESS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ENABLE_BABEL" $CONFIGURATION_FILE; then
            ENABLE_BABEL=$(grep "ENABLE_BABEL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ENABLE_BATMAN" $CONFIGURATION_FILE; then
            ENABLE_BATMAN=$(grep "ENABLE_BATMAN" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ENABLE_CJDNS" $CONFIGURATION_FILE; then
            ENABLE_CJDNS=$(grep "ENABLE_CJDNS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CJDNS_COMMIT" $CONFIGURATION_FILE; then
            CJDNS_COMMIT=$(grep "CJDNS_COMMIT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CJDNS_IPV6" $CONFIGURATION_FILE; then
            CJDNS_IPV6=$(grep "CJDNS_IPV6" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CJDNS_PUBLIC_KEY" $CONFIGURATION_FILE; then
            CJDNS_PUBLIC_KEY=$(grep "CJDNS_PUBLIC_KEY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CJDNS_PRIVATE_KEY" $CONFIGURATION_FILE; then
            CJDNS_PRIVATE_KEY=$(grep "CJDNS_PRIVATE_KEY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ROUTER_IP_ADDRESS" $CONFIGURATION_FILE; then
            ROUTER_IP_ADDRESS=$(grep "ROUTER_IP_ADDRESS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "CPU_CORES" $CONFIGURATION_FILE; then
            CPU_CORES=$(grep "CPU_CORES" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WEBSERVER_LOG_LEVEL" $CONFIGURATION_FILE; then
            WEBSERVER_LOG_LEVEL=$(grep "WEBSERVER_LOG_LEVEL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "ROUTE_THROUGH_TOR" $CONFIGURATION_FILE; then
            ROUTE_THROUGH_TOR=$(grep "ROUTE_THROUGH_TOR" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WIKI_TITLE" $CONFIGURATION_FILE; then
            WIKI_TITLE=$(grep "WIKI_TITLE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_NAME" $CONFIGURATION_FILE; then
            MY_NAME=$(grep "MY_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_EMAIL_ADDRESS" $CONFIGURATION_FILE; then
            MY_EMAIL_ADDRESS=$(grep "MY_EMAIL_ADDRESS" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "INSTALLING_ON_BBB" $CONFIGURATION_FILE; then
            INSTALLING_ON_BBB=$(grep "INSTALLING_ON_BBB" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "SSH_PORT" $CONFIGURATION_FILE; then
            SSH_PORT=$(grep "SSH_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "INSTALLED_WITHIN_DOCKER" $CONFIGURATION_FILE; then
            INSTALLED_WITHIN_DOCKER=$(grep "INSTALLED_WITHIN_DOCKER" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "PUBLIC_MAILING_LIST" $CONFIGURATION_FILE; then
            PUBLIC_MAILING_LIST=$(grep "PUBLIC_MAILING_LIST" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MICROBLOG_DOMAIN_NAME" $CONFIGURATION_FILE; then
            MICROBLOG_DOMAIN_NAME=$(grep "MICROBLOG_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MICROBLOG_CODE" $CONFIGURATION_FILE; then
            MICROBLOG_CODE=$(grep "MICROBLOG_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "HUBZILLA_DOMAIN_NAME" $CONFIGURATION_FILE; then
            HUBZILLA_DOMAIN_NAME=$(grep "HUBZILLA_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "HUBZILLA_CODE" $CONFIGURATION_FILE; then
            HUBZILLA_CODE=$(grep "HUBZILLA_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WIKI_DOMAIN_NAME" $CONFIGURATION_FILE; then
            WIKI_DOMAIN_NAME=$(grep "WIKI_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "WIKI_CODE" $CONFIGURATION_FILE; then
            WIKI_CODE=$(grep "WIKI_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FULLBLOG_DOMAIN_NAME" $CONFIGURATION_FILE; then
            FULLBLOG_DOMAIN_NAME=$(grep "FULLBLOG_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "FULLBLOG_CODE" $CONFIGURATION_FILE; then
            FULLBLOG_CODE=$(grep "FULLBLOG_CODE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_BLOG_TITLE" $CONFIGURATION_FILE; then
            MY_BLOG_TITLE=$(grep "MY_BLOG_TITLE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_BLOG_SUBTITLE" $CONFIGURATION_FILE; then
            MY_BLOG_SUBTITLE=$(grep "MY_BLOG_SUBTITLE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "GPG_ENCRYPT_STORED_EMAIL" $CONFIGURATION_FILE; then
            GPG_ENCRYPT_STORED_EMAIL=$(grep "GPG_ENCRYPT_STORED_EMAIL" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_GPG_PUBLIC_KEY" $CONFIGURATION_FILE; then
            MY_GPG_PUBLIC_KEY=$(grep "MY_GPG_PUBLIC_KEY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_GPG_PRIVATE_KEY" $CONFIGURATION_FILE; then
            MY_GPG_PRIVATE_KEY=$(grep "MY_GPG_PRIVATE_KEY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MY_GPG_PUBLIC_KEY_ID" $CONFIGURATION_FILE; then
            MY_GPG_PUBLIC_KEY_ID=$(grep "MY_GPG_PUBLIC_KEY_ID" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "USB_DRIVE" $CONFIGURATION_FILE; then
            USB_DRIVE=$(grep "USB_DRIVE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "MAX_PHP_MEMORY" $CONFIGURATION_FILE; then
            MAX_PHP_MEMORY=$(grep "MAX_PHP_MEMORY" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TLS_TIME_SOURCE1" $CONFIGURATION_FILE; then
            TLS_TIME_SOURCE1=$(grep "TLS_TIME_SOURCE1" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
        if grep -q "TLS_TIME_SOURCE2" $CONFIGURATION_FILE; then
            TLS_TIME_SOURCE2=$(grep "TLS_TIME_SOURCE2" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
        fi
    fi
    echo "System type: $SYSTEM_TYPE"
}

function set_default_onion_domains {
    # If sites are only visible via Tor then for installation
    # purposes assign them some default domain names
    if [[ $ONION_ONLY == "no" ]]; then
        return
    fi

    if [ ${#MICROBLOG_DOMAIN_NAME} -gt 1 ]; then
        MICROBLOG_DOMAIN_NAME='microblog.local'
    fi
    if [ ${#FULLBLOG_DOMAIN_NAME} -gt 1 ]; then
        FULLBLOG_DOMAIN_NAME='blog.local'
    fi
    if [ ${#WIKI_DOMAIN_NAME} -gt 1 ]; then
        WIKI_DOMAIN_NAME='wiki.local'
    fi
    if [ ${#DEFAULT_DOMAIN_NAME} -gt 1 ]; then
        DEFAULT_DOMAIN_NAME="${PROJECT_NAME}.local"
    fi
    if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
        GIT_DOMAIN_NAME='git.local'
    fi
    if [ ${#MEDIAGOBLIN_DOMAIN_NAME} -gt 1 ]; then
        MEDIAGOBLIN_DOMAIN_NAME='media.local'
    fi
}

function nginx_disable_sniffing {
    domain_name=$1
    filename=/etc/nginx/sites-available/$domain_name
    echo '    add_header X-Frame-Options DENY;' >> $filename
    echo '    add_header X-Content-Type-Options nosniff;' >> $filename
    echo '' >> $filename
}

function nginx_limits {
    domain_name=$1
    max_body='20m'
    if [ $2 ]; then
        max_body=$2
    fi
    filename=/etc/nginx/sites-available/$domain_name
    echo "    client_max_body_size ${max_body};" >> $filename
    echo '    client_body_buffer_size 128k;' >> $filename
    echo '' >> $filename
    echo '    limit_conn conn_limit_per_ip 10;' >> $filename
    echo '    limit_req zone=req_limit_per_ip burst=10 nodelay;' >> $filename
    echo '' >> $filename
}

function nginx_http_redirect {
    # redirect port 80 to https
    domain_name=$1
    filename=/etc/nginx/sites-available/$domain_name
    echo 'server {' > $filename
    echo '    listen 80;' >> $filename
    echo '    listen [::]:80;' >> $filename
    echo "    server_name ${domain_name};" >> $filename
    echo "    root /var/www/${domain_name}/htdocs;" >> $filename
    echo '    access_log off;' >> $filename
    echo "    error_log /var/log/nginx/${domain_name}_error.log $WEBSERVER_LOG_LEVEL;" >> $filename
    nginx_limits $domain_name
    echo '    rewrite ^ https://$server_name$request_uri? permanent;' >> $filename
    echo '}' >> $filename
    echo '' >> $filename
}

function nginx_ssl {
    # creates the SSL/TLS section for a website
    domain_name=$1
    filename=/etc/nginx/sites-available/$domain_name
    echo '    ssl on;' >> $filename
    echo "    ssl_certificate /etc/ssl/certs/${domain_name}.crt;" >> $filename
    echo "    ssl_certificate_key /etc/ssl/private/${domain_name}.key;" >> $filename
    echo "    ssl_dhparam /etc/ssl/certs/${domain_name}.dhparam;" >> $filename
    echo '' >> $filename
    echo '    ssl_session_timeout 60m;' >> $filename
    echo '    ssl_prefer_server_ciphers on;' >> $filename
    echo "    ssl_protocols $SSL_PROTOCOLS;" >> $filename
    echo "    ssl_ciphers '$SSL_CIPHERS';" >> $filename
}

function rss_reader_modifications {
    # modify the rss reader to use a socks5 proxy rather than a http proxy
    if [ ! -d $RSS_READER_PATH ]; then
        return
    fi

    # ensure that socks5 proxy is used
    if ! grep -q "CURLOPT_PROXYTYPE" $RSS_READER_PATH/plugins/af_unburn/init.php; then
        sed -i '/curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);/a \\t\t\t\t\tcurl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);' $RSS_READER_PATH/plugins/af_unburn/init.php
    fi
    if ! grep -q "CURLOPT_PROXYTYPE" $RSS_READER_PATH/include/functions.php; then
        sed -i '/curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);/a \\t\t\t\tcurl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);' $RSS_READER_PATH/include/functions.php
    fi
    chown -R www-data:www-data $RSS_READER_PATH
    chmod a+x $RSS_READER_PATH
}

function set_repo_commit {
    repo_dir=$1
    repo_commit_name=$2
    repo_commit=$3
    repo_url=$4
    if [ -d $repo_dir ]; then
        if grep -q "$repo_commit_name" $COMPLETION_FILE; then
            CURRENT_REPO_COMMIT=$(grep "$repo_commit_name" $COMPLETION_FILE | awk -F ':' '{print $2}')
            if [[ "$CURRENT_REPO_COMMIT" != "$repo_commit" ]]; then
                cd $repo_dir
                git_pull $repo_url $repo_commit
                sed -i "s/${repo_commit_name}.*/${repo_commit_name}:$repo_commit/g" $COMPLETION_FILE

                # application specific stuff after updating the repo
                if [[ $repo_dir == *"www"* ]]; then
                    chown -R www-data:www-data $repo_dir
                fi
                if [[ $repo_dir == *"cjdns" ]]; then
                    ./do
                fi
                if [[ $repo_dir == *"gpgit" ]]; then
                    cp gpgit.pl /usr/bin/gpgit.pl
                fi
                if [[ $repo_dir == *"cleanup-maildir" ]]; then
                    cp $INSTALL_DIR/cleanup-maildir/cleanup-maildir /usr/bin
                fi
                if [[ $repo_dir == *"nginx_ensite" ]]; then
                    make install
                fi
                if [[ $repo_dir == *"gogs" ]]; then
                    git checkout master
                    go get -u ./...
                    if [ ! "$?" = "0" ]; then
                        echo $'Failed to get gogs'
                        exit 52792
                    fi
                    git checkout $repo_commit
                    go build
                    if [ ! "$?" = "0" ]; then
                        echo $'Failed to build gogs'
                        exit 36226
                    fi
                    systemctl restart gogs
                fi
                if [[ $repo_dir == *"toxcore" ]]; then
                    sed -i 's|ExecStart=.*|ExecStart=/usr/local/bin/tox-bootstrapd --config /etc/tox-bootstrapd.conf|g' $rootdir/etc/systemd/system/tox-bootstrapd.service
                    autoreconf -i
                    ./configure --enable-daemon
                    make
                    make install
                    systemctl daemon-reload
                    systemctl restart tox-bootstrapd.service
                fi
                if [[ $repo_dir == *"toxic" ]]; then
                    make
                    make install
                fi
                if [[ $repo_dir == $RSS_READER_PATH ]]; then
                    rss_reader_modifications
                fi
                if [[ $repo_dir == *"inadyn" ]]; then
                    ./configure
                    USE_OPENSSL=1 make
                    make install
                    systemctl restart inadyn
                fi
                if [[ $repo_dir == *"ipfs" ]]; then
                    chown -R git:git /home/git
                    systemctl restart ipfs
                    systemctl daemon-reload
                fi
            fi
        else
            echo "${repo_commit_name}:${repo_commit}" >> $COMPLETION_FILE
        fi
    fi
}

function wait_for_onion_service {
    onion_service_name="$1"

    sleep_ctr=0
    while [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; do
        sleep 1
        sleep_ctr=$((sleep_ctr + 1))
        if [ $sleep_ctr -gt 10 ]; then
            break
        fi
    done

    if [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; then
        # restart and try a second time
        systemctl restart tor
        sleep_ctr=0
        while [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; do
            sleep 1
            sleep_ctr=$((sleep_ctr + 1))
            if [ $sleep_ctr -gt 10 ]; then
                break
            fi
        done
    fi
}

function add_onion_service {
    onion_service_name="$1"
    onion_service_port_from=$2
    onion_service_port_to=$3

    if [ -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; then
        echo $(cat /var/lib/tor/hidden_service_${onion_service_name}/hostname)
        return
    fi

    if [ ! -d /var/lib/tor ]; then
        echo $"No Tor installation found. ${onion_service_name} onion site cannot be configured."
        exit 877367
    fi
    if ! grep -q "hidden_service_${onion_service_name}" /etc/tor/torrc; then
        echo "HiddenServiceDir /var/lib/tor/hidden_service_${onion_service_name}/" >> /etc/tor/torrc
        echo "HiddenServicePort ${onion_service_port_from} 127.0.0.1:${onion_service_port_to}" >> /etc/tor/torrc
    fi

    systemctl restart tor
    wait_for_onion_service ${onion_service_name}

    if [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; then
        echo $"${onion_service_name} onion site hostname not found"
        exit 76362
    fi
    echo $(cat /var/lib/tor/hidden_service_${onion_service_name}/hostname)
}

function create_avahi_onion_domains {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! -d /etc/avahi/services ]; then
        return
    fi
    if [ $MICROBLOG_DOMAIN_NAME ]; then
        echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /etc/avahi/services/microblog.service
        echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /etc/avahi/services/microblog.service
        echo '<service-group>' >> /etc/avahi/services/microblog.service
        echo '  <name replace-wildcards="yes">%h HTTP</name>' >> /etc/avahi/services/microblog.service
        echo '  <service>' >> /etc/avahi/services/microblog.service
        echo '    <type>_http._tcp</type>' >> /etc/avahi/services/microblog.service
        echo "    <port>$MICROBLOG_ONION_PORT</port>" >> /etc/avahi/services/microblog.service
        echo '  </service>' >> /etc/avahi/services/microblog.service
        echo '</service-group>' >> /etc/avahi/services/microblog.service
    fi
    if [ $FULLBLOG_DOMAIN_NAME ]; then
        echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /etc/avahi/services/blog.service
        echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /etc/avahi/services/blog.service
        echo '<service-group>' >> /etc/avahi/services/blog.service
        echo '  <name replace-wildcards="yes">%h HTTP</name>' >> /etc/avahi/services/blog.service
        echo '  <service>' >> /etc/avahi/services/blog.service
        echo '    <type>_http._tcp</type>' >> /etc/avahi/services/blog.service
        echo "    <port>$BLOG_ONION_PORT</port>" >> /etc/avahi/services/blog.service
        echo '  </service>' >> /etc/avahi/services/blog.service
        echo '</service-group>' >> /etc/avahi/services/blog.service
    fi
    if [ $GIT_DOMAIN_NAME ]; then
        echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /etc/avahi/services/git.service
        echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /etc/avahi/services/git.service
        echo '<service-group>' >> /etc/avahi/services/git.service
        echo '  <name replace-wildcards="yes">%h HTTP</name>' >> /etc/avahi/services/git.service
        echo '  <service>' >> /etc/avahi/services/git.service
        echo '    <type>_http._tcp</type>' >> /etc/avahi/services/git.service
        echo "    <port>$GIT_ONION_PORT</port>" >> /etc/avahi/services/git.service
        echo '  </service>' >> /etc/avahi/services/git.service
        echo '</service-group>' >> /etc/avahi/services/git.service
    fi
    if [ $WIKI_DOMAIN_NAME ]; then
        echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /etc/avahi/services/wiki.service
        echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /etc/avahi/services/wiki.service
        echo '<service-group>' >> /etc/avahi/services/wiki.service
        echo '  <name replace-wildcards="yes">%h HTTP</name>' >> /etc/avahi/services/wiki.service
        echo '  <service>' >> /etc/avahi/services/wiki.service
        echo '    <type>_http._tcp</type>' >> /etc/avahi/services/wiki.service
        echo "    <port>$WIKI_ONION_PORT</port>" >> /etc/avahi/services/wiki.service
        echo '  </service>' >> /etc/avahi/services/wiki.service
        echo '</service-group>' >> /etc/avahi/services/wiki.service
    fi
}

# check an individual domain name
function test_domain_name {
    if [ $1 ]; then
        TEST_DOMAIN_NAME=$1
        validate_domain_name
        if [[ $TEST_DOMAIN_NAME != $1 ]]; then
            echo $TEST_DOMAIN_NAME
            exit 8528
        fi
    fi
}

# check that domain names are sensible
function check_domains {
    if [ ${#WIKI_DOMAIN_NAME} -gt 1 ]; then
        test_domain_name "$WIKI_DOMAIN_NAME"

        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
            echo $'Wiki domain name is the same as blog domain name. They must be different'
            exit 97326
        fi
        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
            echo $'Wiki domain name is the same as microblog domain name. They must be different'
            exit 36827
        fi
        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
            echo $'Wiki domain name is the same as hubzilla domain name. They must be different'
            exit 65848
        fi
        if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
                echo $'Wiki domain name is the same as Gogs domain name. They must be different'
                exit 73529
            fi
        fi
    fi

    if [ ${#FULLBLOG_DOMAIN_NAME} -gt 1 ]; then
        test_domain_name "$FULLBLOG_DOMAIN_NAME"

        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
            echo $'Blog domain name is the same as wiki domain name. They must be different'
            exit 62348
        fi
        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
            echo $'Blog domain name is the same as microblog domain name. They must be different'
            exit 38236
        fi
        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
            echo $'Blog domain name is the same as hubzilla domain name. They must be different'
            exit 35483
        fi
        if [ $GIT_DOMAIN_NAME ]; then
            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
                echo $'Blog domain name is the same as Gogs domain name. They must be different'
                exit 84695
            fi
        fi
    fi

    if [ ${#MICROBLOG_DOMAIN_NAME} -gt 1 ]; then
        test_domain_name "$MICROBLOG_DOMAIN_NAME"

        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
            echo $'Microblog domain name is the same as wiki domain name. They must be different'
            exit 73924
        fi
        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
            echo $'Microblog domain name is the same as blog domain name. They must be different'
            exit 26832
        fi
        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
            echo $'Microblog domain name is the same as hubzilla domain name. They must be different'
            exit 678382
        fi
        if [ $GIT_DOMAIN_NAME ]; then
            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
                echo $'Microblog domain name is the same as Gogs domain name. They must be different'
                exit 684325
            fi
        fi
    fi

    if [ $HUBZILLA_DOMAIN_NAME ]; then
        test_domain_name "$HUBZILLA_DOMAIN_NAME"

        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as wiki domain name. They must be different'
            exit 83682
        fi
        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as blog domain name. They must be different'
            exit 74817
        fi
        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as microblog domain name. They must be different'
            exit 83683
        fi
        if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
            if [[ "$test_domain_name" == "$GIT_DOMAIN_NAME" ]]; then
                echo $'Hubzilla domain name is the same as Gogs domain name. They must be different'
                exit 135523
            fi
        fi
    fi

    if [ ${#GIT_DOMAIN_NAME} -gt 1 ]; then
        test_domain_name "$GIT_DOMAIN_NAME"

        if [[ "$test_domain_name" == "$WIKI_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as wiki domain name. They must be different'
            exit 83682
        fi
        if [[ "$test_domain_name" == "$FULLBLOG_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as blog domain name. They must be different'
            exit 74817
        fi
        if [[ "$test_domain_name" == "$MICROBLOG_DOMAIN_NAME" ]]; then
            echo $'Hubzilla domain name is the same as microblog domain name. They must be different'
            exit 83683
        fi
        if [[ "$test_domain_name" == "$HUBZILLA_DOMAIN_NAME" ]]; then
            echo $'Microblog domain name is the same as hubzilla domain name. They must be different'
            exit 678382
        fi
    fi
}

# Checks whether certificates were generated for the given hostname
function check_certificates {
    if [ ! $1 ]; then
        return
    fi
    USE_LETSENCRYPT='no'
    if [ $2 ]; then
        USE_LETSENCRYPT=$2
    fi
    if [[ $USE_LETSENCRYPT == 'no' ]]; then
        if [ ! -f /etc/ssl/private/$1.key ]; then
            echo $"Private certificate for $CHECK_HOSTNAME was not created"
            exit 63959
        fi
        if [ ! -f /etc/ssl/certs/$1.crt ]; then
            echo $"Public certificate for $CHECK_HOSTNAME was not created"
            exit 7679
        fi
    else
        if [ ! -f /etc/letsencrypt/live/${1}/privkey.pem ]; then
            echo $"Private certificate for $CHECK_HOSTNAME was not created"
            exit 6282
        fi
        if [ ! -f /etc/letsencrypt/live/${1}/fullchain.pem ]; then
            echo $"Public certificate for $CHECK_HOSTNAME was not created"
            exit 5328
        fi
    fi
    if [ ! -f /etc/ssl/certs/$1.dhparam ]; then
        echo $"Diffie–Hellman parameters for $CHECK_HOSTNAME were not created"
        exit 5989
    fi
}

function create_site_certificate {
    SITE_DOMAIN_NAME="$1"

    # if yes then only "valid" certs are allowed, not self-signed
    NO_SELF_SIGNED='no'
    if [ $2 ]; then
        NO_SELF_SIGNED="$2"
    fi

    if [[ $ONION_ONLY == "no" ]]; then
        if [ ! -f /etc/ssl/certs/$SITE_DOMAIN_NAME.dhparam ]; then
            if [[ $LETSENCRYPT_ENABLED != "yes" ]]; then
                ${PROJECT_NAME}-addcert -h $SITE_DOMAIN_NAME --dhkey $DH_KEYLENGTH
                check_certificates $SITE_DOMAIN_NAME
            else
                ${PROJECT_NAME}-addcert -e $SITE_DOMAIN_NAME -s $LETSENCRYPT_SERVER --dhkey $DH_KEYLENGTH --email $MY_EMAIL_ADDRESS
                if [ ! "$?" = "0" ]; then
                    if [[ $NO_SELF_SIGNED == 'no' ]]; then
                        echo $"Lets Encrypt failed for $SITE_DOMAIN_NAME, so try making a self-signed cert"
                        ${PROJECT_NAME}-addcert -h $SITE_DOMAIN_NAME --dhkey $DH_KEYLENGTH
                        check_certificates $SITE_DOMAIN_NAME
                    else
                        echo $"Lets Encrypt failed for $SITE_DOMAIN_NAME"
                        exit 682529
                    fi
                else
                    check_certificates $SITE_DOMAIN_NAME 'yes'
                fi
            fi
        fi
    fi
}

function backup_database_local {
    # Makes local backups of databases which can then be automatically rolled
    # back if corruption is detected
    database_name=$1

    backup_databases_script=/usr/bin/backupdatabases
    echo '' >> $backup_databases_script
    echo "# Backup the ${database_name} database" >> $backup_databases_script
    echo "TEMPFILE=/root/${database_name}.sql" >> $backup_databases_script
    echo 'DAILYFILE=/var/backups/${database_name}_daily.sql' >> $backup_databases_script
    echo "mysqldump --password=\"\$MYSQL_PASSWORD\" ${database_name} > \$TEMPFILE" >> $backup_databases_script
    echo 'FILESIZE=$(stat -c%s $TEMPFILE)' >> $backup_databases_script
    echo 'if [ "$FILESIZE" -eq "0" ]; then' >> $backup_databases_script
    echo '    if [ -f $DAILYFILE ]; then' >> $backup_databases_script
    echo '        cp $DAILYFILE $TEMPFILE' >> $backup_databases_script
    echo '' >> $backup_databases_script
    echo '        # try to restore yesterdays database' >> $backup_databases_script
    echo "        mysql -u root --password=\"\$MYSQL_PASSWORD\" ${database_name} -o < \$DAILYFILE" >> $backup_databases_script
    echo '' >> $backup_databases_script
    echo '        # Send a warning email' >> $backup_databases_script
    echo "        echo \"Unable to create a backup of the ${database_name} database. Attempted to restore from yesterdays backup\" | mail -s \"${database_name} backup\" \$EMAIL" >> $backup_databases_script
    echo '    else' >> $backup_databases_script
    echo '        # Send a warning email' >> $backup_databases_script
    echo "        echo \"Unable to create a backup of the ${database_name} database.\" | mail -s \"${database_name} backup\" \$EMAIL" >> $backup_databases_script
    echo '    fi' >> $backup_databases_script
    echo 'else' >> $backup_databases_script
    echo '    chmod 600 $TEMPFILE' >> $backup_databases_script
    echo '    mv $TEMPFILE $DAILYFILE' >> $backup_databases_script
    echo '' >> $backup_databases_script
    echo '    # Make the backup readable only by root' >> $backup_databases_script
    echo '    chmod 600 $DAILYFILE' >> $backup_databases_script
    echo 'fi' >> $backup_databases_script

    weekly_backup_script=/etc/cron.weekly/backupdatabasesweekly
    if ! grep -q "${database_name}" ${weekly_backup_script}; then
        echo '' >> ${weekly_backup_script}
        echo "# ${database_name}" >> ${weekly_backup_script}
        echo "if [ -f /var/backups/${database_name}_weekly.sql ]; then" >> ${weekly_backup_script}
        echo "  cp -f /var/backups/${database_name}_weekly.sql /var/backups/${database_name}_2weekly.sql" >> ${weekly_backup_script}
        echo 'fi' >> ${weekly_backup_script}
        echo "if [ -f /var/backups/${database_name}_daily.sql ]; then" >> ${weekly_backup_script}
        echo "  cp -f /var/backups/${database_name}_daily.sql /var/backups/${database_name}_weekly.sql" >> ${weekly_backup_script}
        echo 'fi' >> ${weekly_backup_script}
    fi

    monthly_backup_script=/etc/cron.monthly/backupdatabasesmonthly
    if ! grep -q "${database_name}" ${monthly_backup_script}; then
        echo '' >> ${monthly_backup_script}
        echo "# ${database_name}" >> ${monthly_backup_script}
        echo "if [ -f /var/backups/${database_name}_monthly.sql ]; then" >> ${monthly_backup_script}
        echo "  cp -f /var/backups/${database_name}_monthly.sql /var/backups/${database_name}_2monthly.sql" >> ${monthly_backup_script}
        echo 'fi' >> ${monthly_backup_script}
        echo "if [ -f /var/backups/${database_name}_weekly.sql ]; then" >> ${monthly_backup_script}
        echo "  cp -f /var/backups/${database_name}_weekly.sql /var/backups/${database_name}_monthly.sql" >> ${monthly_backup_script}
        echo 'fi' >> ${monthly_backup_script}
    fi

    if ! grep -q "${database_name}" /etc/cron.hourly/repair; then
        echo "${PROJECT_NAME}-repair-database ${database_name}" >> /etc/cron.hourly/repair
        # remove legacy stuff
        sed -i 's|/usr/bin/repairdatabase redmatrix||g' /etc/cron.hourly/repair
    fi
}

function install_not_on_BBB {
    if grep -Fxq "install_not_on_BBB" $COMPLETION_FILE; then
        return
    fi
    if [[ INSTALLING_ON_BBB == "yes" ]]; then
        return
    fi
    if [ ! $LOCAL_NETWORK_STATIC_IP_ADDRESS ]; then
        return
    fi

    echo '# The loopback network interface' > /etc/network/interfaces
    echo 'auto lo' >> /etc/network/interfaces
    echo 'iface lo inet loopback' >> /etc/network/interfaces
    echo '' >> /etc/network/interfaces
    echo '# The primary network interface' >> /etc/network/interfaces
    echo 'auto eth0' >> /etc/network/interfaces
    echo 'iface eth0 inet static' >> /etc/network/interfaces
    echo "    address $LOCAL_NETWORK_STATIC_IP_ADDRESS" >> /etc/network/interfaces
    echo '    netmask 255.255.255.0' >> /etc/network/interfaces
    echo "    gateway $ROUTER_IP_ADDRESS" >> /etc/network/interfaces
    echo "    dns-nameservers $NAMESERVER1 $NAMESERVER2" >> /etc/network/interfaces
    echo '# Example to keep MAC address between reboots' >> /etc/network/interfaces
    echo '#hwaddress ether DE:AD:BE:EF:CA:FE' >> /etc/network/interfaces
    echo '' >> /etc/network/interfaces
    echo '# The secondary network interface' >> /etc/network/interfaces
    echo '#auto eth1' >> /etc/network/interfaces
    echo '#iface eth1 inet dhcp' >> /etc/network/interfaces
    echo '' >> /etc/network/interfaces
    echo '# WiFi Example' >> /etc/network/interfaces
    echo "#auto $WIFI_INTERFACE" >> /etc/network/interfaces
    echo "#iface $WIFI_INTERFACE inet dhcp" >> /etc/network/interfaces
    echo '#    wpa-ssid "essid"' >> /etc/network/interfaces
    echo '#    wpa-psk  "password"' >> /etc/network/interfaces
    echo '' >> /etc/network/interfaces
    echo '# Ethernet/RNDIS gadget (g_ether)' >> /etc/network/interfaces
    echo '# ... or on host side, usbnet and random hwaddr' >> /etc/network/interfaces
    echo '# Note on some boards, usb0 is automaticly setup with an init script' >> /etc/network/interfaces
    echo '#iface usb0 inet static' >> /etc/network/interfaces
    echo '#    address 192.168.7.2' >> /etc/network/interfaces
    echo '#    netmask 255.255.255.0' >> /etc/network/interfaces
    echo '#    network 192.168.7.0' >> /etc/network/interfaces
    echo '#    gateway 192.168.7.1' >> /etc/network/interfaces

    echo 'install_not_on_BBB' >> $COMPLETION_FILE
}

function mark_admin_user_account {
    if ! grep -q "Admin user:" $COMPLETION_FILE; then
        echo "Admin user:$MY_USERNAME" >> $COMPLETION_FILE
    fi
}

function mark_blog_domain {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if ! grep -q "Blog domain:" $COMPLETION_FILE; then
        echo "Blog domain:$FULLBLOG_DOMAIN_NAME" >> $COMPLETION_FILE
    fi
}

function randomize_cron {
    # The predictable default timing of Debian cron jobs might
    # be exploitable knowledge. Avoid too much predictability
    # by randomizing the times when cron jobs run
    if grep -Fxq "randomize_cron" $COMPLETION_FILE; then
        return
    fi

    # randomize the day on which the weekly cron job runs
    randdow=$(($RANDOM%6+1))
    sed -i "s|\* \* 7|* * $randdow|g" /etc/crontab

    # randomize the time when the weekly cron job runs
    randmin=$(($RANDOM%60))
    randhr=$(($RANDOM%3+1))
    sed -i "s|47 6|$randmin $randhr|g" /etc/crontab

    # randomize the time when the daily cron job runs
    randmin=$(($RANDOM%60))
    randhr=$(($RANDOM%3+4))
    sed -i "s|25 6\t\* \* \*|$randmin $randhr\t* * *|g" /etc/crontab

    # randomize the time when the hourly cron job runs
    randmin=$(($RANDOM%60))
    sed -i "s|17 \*\t|$randmin *\t|g" /etc/crontab

    # randomize monthly cron job time and day
    randmin=$(($RANDOM%60))
    randhr=$(($RANDOM%22+1))
    randdom=$(($RANDOM%27+1))
    sed -i "s|52 6\t|$randmin $randhr\t|g" /etc/crontab
    sed -i "s|\t1 \* \*|\t$randdom * *|g" /etc/crontab

    systemctl restart cron

    echo 'randomize_cron' >> $COMPLETION_FILE
}

function get_cjdns_public_key {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "cjdns public key" /home/$MY_USERNAME/README; then
            if [ ! $CJDNS_PUBLIC_KEY ]; then
                CJDNS_PUBLIC_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns public key" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function get_cjdns_private_key {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "cjdns private key" /home/$MY_USERNAME/README; then
            if [ ! $CJDNS_PRIVATE_KEY ]; then
                CJDNS_PRIVATE_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns private key" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function get_cjdns_ipv6_address {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "cjdns IPv6 address" /home/$MY_USERNAME/README; then
            if [ ! $CJDNS_IPV6 ]; then
                CJDNS_IPV6=$(cat /home/$MY_USERNAME/README | grep "cjdns IPv6 address" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function get_cjdns_port {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "cjdns port" /home/$MY_USERNAME/README; then
            if [ ! $CJDNS_PORT ]; then
                CJDNS_PORT=$(cat /home/$MY_USERNAME/README | grep "cjdns port" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function get_cjdns_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "cjdns password" /home/$MY_USERNAME/README; then
            if [ ! $CJDNS_PASSWORD ]; then
                CJDNS_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "cjdns password" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

# script to automatically renew any Let's Encrypt certificates
function letsencrypt_renewals {
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi

    renewals_script=/etc/cron.monthly/letsencrypt
    renewals_retry_script=/etc/cron.daily/letsencrypt
    renewal_failure_msg=$'The certificate for $LETSENCRYPT_DOMAIN could not be renewed'
    renewal_email_title=$'${PROJECT_NAME} Lets Encrypt certificate renewal'

    # the main script tries to renew once per month
    echo '#!/bin/bash' > $renewals_script
    echo '' >> $renewals_script
    echo "PROJECT_NAME='${PROJECT_NAME}'" >> $renewals_script
    echo 'COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt' >> $renewals_script
    echo '' >> $renewals_script
    echo 'if [ -d /etc/letsencrypt ]; then' >> $renewals_script
    echo '    if [ -f ~/letsencrypt_failed ]; then' >> $renewals_script
    echo '        rm ~/letsencrypt_failed' >> $renewals_script
    echo '    fi' >> $renewals_script
    echo -n '    ADMIN_USERNAME=$(cat $COMPLETION_FILE | grep "Admin user" | ' >> $renewals_script
    echo -n "awk -F ':' '{print " >> $renewals_script
    echo -n '$2' >> $renewals_script
    echo "}')" >> $renewals_script
    echo '    ADMIN_EMAIL_ADDRESS=$ADMIN_USERNAME@$HOSTNAME' >> $renewals_script
    echo '    for d in /etc/letsencrypt/live/*/ ; do' >> $renewals_script
    echo -n '        LETSENCRYPT_DOMAIN=$(echo "$d" | ' >> $renewals_script
    echo -n "awk -F '/' '{print " >> $renewals_script
    echo -n '$5' >> $renewals_script
    echo "}')" >> $renewals_script
    echo '        if [ -f /etc/nginx/sites-available/$LETSENCRYPT_DOMAIN ]; then' >> $renewals_script
    echo '            ${PROJECT_NAME}-renew-cert -h $LETSENCRYPT_DOMAIN -p letsencrypt' >> $renewals_script
    echo '            if [ ! "$?" = "0" ]; then' >> $renewals_script
    echo "                echo \"${renewal_failure_msg}\" > ~/temp_renewletsencrypt.txt" >> $renewals_script
    echo '                echo "" >> ~/temp_renewletsencrypt.txt' >> $renewals_script
    echo '                ${PROJECT_NAME}-renew-cert -h $LETSENCRYPT_DOMAIN -p letsencrypt 2>> ~/temp_renewletsencrypt.txt' >> $renewals_script
    echo -n "                cat ~/temp_renewletsencrypt.txt | mail -s \"${renewal_email_title}\" " >> $renewals_script
    echo '$ADMIN_EMAIL_ADDRESS' >> $renewals_script
    echo '                rm ~/temp_renewletsencrypt.txt' >> $renewals_script
    echo '                if [ ! -f ~/letsencrypt_failed ]; then' >> $renewals_script
    echo '                    touch ~/letsencrypt_failed' >> $renewals_script
    echo '                fi' >> $renewals_script
    echo '            fi' >> $renewals_script
    echo '        fi' >> $renewals_script
    echo '    done' >> $renewals_script
    echo 'fi' >> $renewals_script
    chmod +x $renewals_script

    # a secondary script keeps trying to renew after a failure
    echo '#!/bin/bash' > $renewals_retry_script
    echo '' >> $renewals_retry_script
    echo "PROJECT_NAME='${PROJECT_NAME}'" >> $renewals_retry_script
    echo 'COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt' >> $renewals_retry_script
    echo '' >> $renewals_retry_script
    echo 'if [ -d /etc/letsencrypt ]; then' >> $renewals_retry_script
    echo '    if [ -f ~/letsencrypt_failed ]; then' >> $renewals_retry_script
    echo '        rm ~/letsencrypt_failed' >> $renewals_retry_script
    echo -n '        ADMIN_USERNAME=$(cat $COMPLETION_FILE | grep "Admin user" | ' >> $renewals_retry_script
    echo -n "awk -F ':' '{print " >> $renewals_retry_script
    echo -n '$2' >> $renewals_retry_script
    echo "}')" >> $renewals_retry_script
    echo '        ADMIN_EMAIL_ADDRESS=$ADMIN_USERNAME@$HOSTNAME' >> $renewals_retry_script
    echo '        for d in /etc/letsencrypt/live/*/ ; do' >> $renewals_retry_script
    echo -n '            LETSENCRYPT_DOMAIN=$(echo "$d" | ' >> $renewals_retry_script
    echo -n "awk -F '/' '{print " >> $renewals_retry_script
    echo -n '$5' >> $renewals_retry_script
    echo "}')" >> $renewals_retry_script
    echo '            if [ -f /etc/nginx/sites-available/$LETSENCRYPT_DOMAIN ]; then' >> $renewals_retry_script
    echo '                ${PROJECT_NAME}-renew-cert -h $LETSENCRYPT_DOMAIN -p letsencrypt' >> $renewals_retry_script
    echo '                if [ ! "$?" = "0" ]; then' >> $renewals_retry_script
    echo "                    echo \"${renewal_failure_msg}\" > ~/temp_renewletsencrypt.txt" >> $renewals_retry_script
    echo '                    echo "" >> ~/temp_renewletsencrypt.txt' >> $renewals_retry_script
    echo '                    ${PROJECT_NAME}-renew-cert -h $LETSENCRYPT_DOMAIN -p letsencrypt 2>> ~/temp_renewletsencrypt.txt' >> $renewals_retry_script
    echo -n "                    cat ~/temp_renewletsencrypt.txt | mail -s \"${renewal_email_title}\" " >> $renewals_retry_script
    echo '$ADMIN_EMAIL_ADDRESS' >> $renewals_retry_script
    echo '                    rm ~/temp_renewletsencrypt.txt' >> $renewals_retry_script
    echo '                    if [ ! -f ~/letsencrypt_failed ]; then' >> $renewals_retry_script
    echo '                        touch ~/letsencrypt_failed' >> $renewals_retry_script
    echo '                    fi' >> $renewals_retry_script
    echo '                fi' >> $renewals_retry_script
    echo '            fi' >> $renewals_retry_script
    echo '        done' >> $renewals_retry_script
    echo '    fi' >> $renewals_retry_script
    echo 'fi' >> $renewals_retry_script
    chmod +x $renewals_retry_script
}

function save_firewall_settings {
    iptables-save > /etc/firewall.conf
    ip6tables-save > /etc/firewall6.conf
    printf '#!/bin/sh\n' > /etc/network/if-up.d/iptables
    printf 'iptables-restore < /etc/firewall.conf\n' >> /etc/network/if-up.d/iptables
    printf 'ip6tables-restore < /etc/firewall6.conf\n' >> /etc/network/if-up.d/iptables
    chmod +x /etc/network/if-up.d/iptables
}

function enable_ipv6 {
    # endure that ipv6 is enabled and can route
    sed -i 's/net.ipv6.conf.all.disable_ipv6.*/net.ipv6.conf.all.disable_ipv6 = 0/g' /etc/sysctl.conf
    #sed -i "s/net.ipv6.conf.all.accept_redirects.*/net.ipv6.conf.all.accept_redirects = 1/g" /etc/sysctl.conf
    #sed -i "s/net.ipv6.conf.all.accept_source_route.*/net.ipv6.conf.all.accept_source_route = 1/g" /etc/sysctl.conf
    sed -i "s/net.ipv6.conf.all.forwarding.*/net.ipv6.conf.all.forwarding=1/g" /etc/sysctl.conf
    echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
}

function mesh_cjdns {
    if [[ $ENABLE_CJDNS != "yes" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit /etc/cjdns "cjdns commit" "$CJDNS_COMMIT" $CJDNS_REPO

    if grep -Fxq "mesh_cjdns" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install nodejs git build-essential nmap

    # if a README exists then obtain the cjdns parameters
    get_cjdns_ipv6_address
    get_cjdns_public_key
    get_cjdns_private_key
    get_cjdns_port
    get_cjdns_password

    # special compile settings for running ./do on the Beaglebone Black
    if [[ $INSTALLING_ON_BBB == "yes" ]]; then
        CFLAGS="-O2 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -ffast-math -mfloat-abi=hard -marm -Wno-error=maybe-uninitialized"
        export LDFLAGS="$CFLAGS"
    fi

    if [ ! -d /etc/cjdns ]; then
        git_clone $CJDNS_REPO /etc/cjdns
        cd /etc/cjdns

        git checkout $CJDNS_COMMIT -b $CJDNS_COMMIT
        if ! grep -q "cjdns commit" $COMPLETION_FILE; then
            echo "cjdns commit:$CJDNS_COMMIT" >> $COMPLETION_FILE
        else
            sed -i "s/cjdns commit.*/cjdns commit:$CJDNS_COMMIT/g" $COMPLETION_FILE
        fi

        ./do
        if [ ! "$?" = "0" ]; then
            exit 7439
        fi
        # create a configuration
        if [ ! -f /etc/cjdns/cjdroute.conf ]; then
            ./cjdroute --genconf > /etc/cjdns/cjdroute.conf
            if [ ! "$?" = "0" ]; then
                exit 5922
            fi
        fi
        # create a user to run as
        useradd cjdns
    else
        cd /etc/cjdns
        git_pull $CJDNS_REPO
        ./do
        if [ ! "$?" = "0" ]; then
            exit 9926
        fi
    fi

    # set permissions
    chown -R cjdns:cjdns /etc/cjdns
    chmod 600 /etc/cjdns/cjdroute.conf

    /sbin/ip tuntap add mode tun user cjdns dev cjdroute0

    # insert values into the configuration file
    if [ $CJDNS_PRIVATE_KEY ]; then
        sed -i "s/\"privateKey\":.*/\"privateKey\": \"$CJDNS_PRIVATE_KEY\",/g" /etc/cjdns/cjdroute.conf
    else
        CJDNS_PRIVATE_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"privateKey"' | awk -F '"' '{print $4}' | sed -n 1p)
    fi
    if [ $CJDNS_PUBLIC_KEY ]; then
        sed -i "s/\"publicKey\":.*/\"publicKey\": \"$CJDNS_PUBLIC_KEY\",/g" /etc/cjdns/cjdroute.conf
    else
        CJDNS_PUBLIC_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"publicKey"' | awk -F '"' '{print $4}' | sed -n 1p)
    fi
    if [ $CJDNS_IPV6 ]; then
        sed -i "s/\"ipv6\":.*/\"ipv6\": \"$CJDNS_IPV6\",/g" /etc/cjdns/cjdroute.conf
    else
        CJDNS_IPV6=$(cat /etc/cjdns/cjdroute.conf | grep '"ipv6"' | awk -F '"' '{print $4}' | sed -n 1p)
    fi
    if [ $CJDNS_PASSWORD ]; then
        sed -i "0,/{\"password\":.*/s//{\"password\": \"$CJDNS_PASSWORD\"}/g" /etc/cjdns/cjdroute.conf
    else
        CJDNS_PASSWORD=$(cat /etc/cjdns/cjdroute.conf | grep '"password"' | awk -F '"' '{print $4}' | sed -n 1p)
    fi
    if [ $CJDNS_PORT ]; then
        sed -i "s/\"bind\": \"0.0.0.0:.*/\"bind\": \"0.0.0.0:$CJDNS_PORT\",/g" /etc/cjdns/cjdroute.conf
    else
        CJDNS_PORT=$(cat /etc/cjdns/cjdroute.conf | grep '"bind": "0.0.0.0:' | awk -F '"' '{print $4}' | awk -F ':' '{print $2}' | sed -n 1p)
    fi

    enable_ipv6

    echo '#!/bin/sh -e' > /etc/init.d/cjdns
    echo '### BEGIN INIT INFO' >> /etc/init.d/cjdns
    echo '# hyperboria.sh - An init script (/etc/init.d/) for cjdns' >> /etc/init.d/cjdns
    echo '# Provides:          cjdroute' >> /etc/init.d/cjdns
    echo '# Required-Start:    $remote_fs $network' >> /etc/init.d/cjdns
    echo '# Required-Stop:     $remote_fs $network' >> /etc/init.d/cjdns
    echo '# Default-Start:     2 3 4 5' >> /etc/init.d/cjdns
    echo '# Default-Stop:      0 1 6' >> /etc/init.d/cjdns
    echo '# Short-Description: Cjdns router' >> /etc/init.d/cjdns
    echo '# Description:       A routing engine designed for security, scalability, speed and ease of use.' >> /etc/init.d/cjdns
    echo '# cjdns git repo:    https://github.com/cjdelisle/cjdns/' >> /etc/init.d/cjdns
    echo '### END INIT INFO' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo 'PROG="cjdroute"' >> /etc/init.d/cjdns
    echo 'GIT_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
    echo 'PROG_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
    echo 'CJDNS_CONFIG="cjdroute.conf"' >> /etc/init.d/cjdns
    echo 'CJDNS_USER="cjdns"' >> /etc/init.d/cjdns
    echo "CJDNS_IP='$CJDNS_IPV6'" >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo 'start() {' >> /etc/init.d/cjdns
    echo '     # Start it up with the user cjdns' >> /etc/init.d/cjdns
    echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
    echo '     then' >> /etc/init.d/cjdns
    echo '         echo "cjdroute is already running. Doing nothing..."' >> /etc/init.d/cjdns
    echo '     else' >> /etc/init.d/cjdns
    echo '         echo " * Starting cjdroute"' >> /etc/init.d/cjdns
    echo '         su -c "$PROG_PATH/$PROG < $PROG_PATH/$CJDNS_CONFIG" - $CJDNS_USER' >> /etc/init.d/cjdns
    echo '         /sbin/ip addr add $CJDNS_IP/8 dev tun0' >> /etc/init.d/cjdns
    echo '         /sbin/ip link set mtu 1312 dev tun0' >> /etc/init.d/cjdns
    echo '         /sbin/ip link set tun0 up' >> /etc/init.d/cjdns
    echo '         /sbin/ip tuntap add mode tun user cjdns dev tun0' >> /etc/init.d/cjdns
    echo '     fi' >> /etc/init.d/cjdns
    echo '}' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo 'stop() {' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo '     if [ $(pgrep cjdroute | wc -l) != 2 ];' >> /etc/init.d/cjdns
    echo '     then' >> /etc/init.d/cjdns
    echo '         echo "cjdns isnt running."' >> /etc/init.d/cjdns
    echo '     else' >> /etc/init.d/cjdns
    echo '         echo "Killing cjdroute"' >> /etc/init.d/cjdns
    echo '         killall cjdroute' >> /etc/init.d/cjdns
    echo '     fi' >> /etc/init.d/cjdns
    echo '}' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo 'status() {' >> /etc/init.d/cjdns
    echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
    echo '     then' >> /etc/init.d/cjdns
    echo '         echo "Cjdns is running"' >> /etc/init.d/cjdns
    echo '     else' >> /etc/init.d/cjdns
    echo '         echo "Cjdns is not running"' >> /etc/init.d/cjdns
    echo '     fi' >> /etc/init.d/cjdns
    echo '}' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo ' update() {' >> /etc/init.d/cjdns
    echo '     cd $GIT_PATH' >> /etc/init.d/cjdns
    echo '     echo "Updating..."' >> /etc/init.d/cjdns
    echo '     git pull' >> /etc/init.d/cjdns
    echo '     ./do' >> /etc/init.d/cjdns
    echo '}' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo '## Check to see if we are running as root first.' >> /etc/init.d/cjdns
    echo 'if [ "$(id -u)" != "0" ]; then' >> /etc/init.d/cjdns
    echo '    echo "This script must be run as root" 1>&2' >> /etc/init.d/cjdns
    echo '    exit 1' >> /etc/init.d/cjdns
    echo 'fi' >> /etc/init.d/cjdns
    echo '' >> /etc/init.d/cjdns
    echo 'case $1 in' >> /etc/init.d/cjdns
    echo '     start)' >> /etc/init.d/cjdns
    echo '         start' >> /etc/init.d/cjdns
    echo '         exit 0' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo '     stop)' >> /etc/init.d/cjdns
    echo '         stop' >> /etc/init.d/cjdns
    echo '         exit 0' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo '     reload|restart|force-reload)' >> /etc/init.d/cjdns
    echo '         stop' >> /etc/init.d/cjdns
    echo '         sleep 1' >> /etc/init.d/cjdns
    echo '         start' >> /etc/init.d/cjdns
    echo '         exit 0' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo '     status)' >> /etc/init.d/cjdns
    echo '         status' >> /etc/init.d/cjdns
    echo '         exit 0' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo '     update|upgrade)' >> /etc/init.d/cjdns
    echo '         update' >> /etc/init.d/cjdns
    echo '         stop' >> /etc/init.d/cjdns
    echo '         sleep 2' >> /etc/init.d/cjdns
    echo '         start' >> /etc/init.d/cjdns
    echo '         exit 0' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo '     **)' >> /etc/init.d/cjdns
    echo '         echo "Usage: $0 (start|stop|restart|status|update)" 1>&2' >> /etc/init.d/cjdns
    echo '         exit 1' >> /etc/init.d/cjdns
    echo '     ;;' >> /etc/init.d/cjdns
    echo 'esac' >> /etc/init.d/cjdns
    chmod +x /etc/init.d/cjdns
    update-rc.d cjdns defaults
    service cjdns start
    if [ ! "$?" = "0" ]; then
        systemctl status cjdns.service
        exit 8260
    fi

    apt-get -y install radvd
    echo 'interface eth0' > /etc/radvd.conf
    echo '{' >> /etc/radvd.conf
    echo '    AdvSendAdvert on;' >> /etc/radvd.conf
    echo '    prefix fdfc::1/64' >> /etc/radvd.conf
    echo '    {' >> /etc/radvd.conf
    echo '        AdvRouterAddr on;' >> /etc/radvd.conf
    echo '    };' >> /etc/radvd.conf
    echo '};' >> /etc/radvd.conf
    systemctl restart radvd
    if [ ! "$?" = "0" ]; then
        systemctl status radvd.service
        exit 4395
    fi

    if ! grep -q "# Mesh Networking (cjdns)" /etc/network/interfaces; then
        echo '' >> /etc/network/interfaces
        echo '# Mesh Networking (cjdns)' >> /etc/network/interfaces
        echo 'iface eth0 inet6 static' >> /etc/network/interfaces
        echo '    pre-up modprobe ipv6' >> /etc/network/interfaces
        echo '    address fdfc:0000:0000:0000:0000:0000:0000:0001' >> /etc/network/interfaces
        echo '    netmask 64' >> /etc/network/interfaces
        service network-manager restart
        if [ ! "$?" = "0" ]; then
            systemctl status networking.service
            exit 6949
        fi
    fi

    ip6tables -A INPUT -p udp --dport $CJDNS_PORT -j ACCEPT
    ip6tables -A INPUT -p tcp --dport $CJDNS_PORT -j ACCEPT
    save_firewall_settings

    if ! grep -q $"Mesh Networking (cjdns)" /home/$MY_USERNAME/README; then
        CURRENT_IP_ADDRESS=$(ip addr show | grep "inet " | sed -n 2p | awk -F ' ' '{print $2}' | awk -F '/' '{print $1}')

        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Mesh Networking (cjdns)' >> /home/$MY_USERNAME/README
        echo '=======================' >> /home/$MY_USERNAME/README
        echo $"cjdns IPv6 address: $CJDNS_IPV6" >> /home/$MY_USERNAME/README
        echo $"cjdns public key: $CJDNS_PUBLIC_KEY" >> /home/$MY_USERNAME/README
        echo $"cjdns private key: $CJDNS_PRIVATE_KEY" >> /home/$MY_USERNAME/README
        echo $"cjdns password: $CJDNS_PASSWORD" >> /home/$MY_USERNAME/README
        echo $"cjdns port: $CJDNS_PORT" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $"Forward port $CJDNS_PORT from your internet router to the ${PROJECT_NAME}" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Below is an example of your connection credentials' >> /home/$MY_USERNAME/README
        echo $'that you can give to other people so they can connect' >> /home/$MY_USERNAME/README
        echo $'to you using your default password' >> /home/$MY_USERNAME/README
        echo $'Adding a unique password for each user is advisable' >> /home/$MY_USERNAME/README
        echo $'so that leaks can be isolated.' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo "\"$CURRENT_IP_ADDRESS:$CJDNS_PORT\":{\"password\":\"$CJDNS_PASSWORD\",\"publicKey\":\"$CJDNS_PUBLIC_KEY\"}" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'More is not better. 3-5 cjdns peers is good. 30 peers is bad.' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'NEVER USE A PUBLIC PEER. These degrade the network and make it centralized.' >> /home/$MY_USERNAME/README
        echo $'Each node can handle many peers, but no node can handle the entire internet.' >> /home/$MY_USERNAME/README
        echo $'As this network grows any public peer will simply become saturated and' >> /home/$MY_USERNAME/README
        echo $'useless causing issues for the entire network.' >> /home/$MY_USERNAME/README
        echo $'Please report anyone offering you a public peer as they are promoting shared' >> /home/$MY_USERNAME/README
        echo $'passwords which could lead to people pretending to be you. A peering pass' >> /home/$MY_USERNAME/README
        echo $'should not contain someone elses nickname or info but should contain yours' >> /home/$MY_USERNAME/README
        echo $'to ensure it is not shared. It also helps when editing the conf to know who' >> /home/$MY_USERNAME/README
        echo $'each password is for.' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Possible cjdns destinations of interest:' >> /home/$MY_USERNAME/README
        echo '    http://transitiontech.ca/faq' >> /home/$MY_USERNAME/README
        echo '    http://cjdns.ca/hypeirc.txt' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'mesh_cjdns' >> $COMPLETION_FILE
}

function create_mirrors {
    if [ -d /home/trove ]; then
        userdel -r trove
    fi
    if grep -Fxq "create_mirrors" $COMPLETION_FILE; then
        return
    fi
    ${PROJECT_NAME}-mirrors
    echo 'create_mirrors' >> $COMPLETION_FILE
}

function mesh_cjdns_tools {
    if grep -Fxq "mesh_cjdns_tools" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_CJDNS != "yes" ]]; then
        return
    fi
    if [ ! -d /etc/cjdns ]; then
        mesh_cjdns
    fi

    apt-get -y install golang mercurial
    if [ ! -f ~/.bashrc ]; then
        touch ~/.bashrc
    fi

    export GOPATH=/home/git/go
    if [ ! -d /home/git ]; then
        # add a gogs user account
        adduser --disabled-login --gecos 'Gogs' git

        # install Go
        if ! grep -q "export GOPATH=/home/git/go" ~/.bashrc; then
            echo 'export GOPATH=/home/git/go' >> ~/.bashrc
            echo 'systemctl set-environment GOPATH=/home/git/go' >> ~/.bashrc
        fi
        if [ ! -d $GOPATH ]; then
            mkdir -p $GOPATH
        fi
    fi

    if ! grep -q "export GOPATH=" ~/.bashrc; then
        echo "export GOPATH=$GOPATH" >> ~/.bashrc
    fi
    expected_go_path='export PATH=$PATH:'${GOPATH}'/bin'
    if ! grep -q "$expected_go_path" ~/.bashrc; then
        export PATH=$PATH:${GOPATH}/bin
        echo "$expected_go_path" >> ~/.bashrc
    fi
    export PATH=$PATH:$GOPATH/bin
    CJDCMD_REPO2=$(echo "$CJDCMD_REPO" | sed 's|https://||g')
    go get $CJDCMD_REPO2
    if [ ! -f $GOPATH/bin/cjdcmd ]; then
        echo $'cjdcmd was not compiled. Check your golang installation'
        exit 7439
    fi
    cp $GOPATH/bin/cjdcmd /usr/bin

    # initialise from the cjdns config
    /usr/bin/cjdcmd cjdnsadmin -file /etc/cjdns/cjdroute.conf

    echo 'mesh_cjdns_tools' >> $COMPLETION_FILE
}

function install_zeronet_blog {
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi

    set_repo_commit /opt/zeronet/ZeroBlog "ZeroNet Blog commit" "$ZERONET_BLOG_COMMIT" $ZERONET_BLOG_REPO

    if grep -Fxq "install_zeronet_blog" $COMPLETION_FILE; then
        return
    fi

    if [ ! -f /home/$MY_USERNAME/README ]; then
        touch /home/$MY_USERNAME/README
    fi

    if grep -q "ZeroNet Blog address" /home/$MY_USERNAME/README; then
        return
    fi

    if [ ! -d /etc/avahi ]; then
        echo $'Avahi is not installed'
        exit 736
    fi

    ZERONET_DEFAULT_BLOG_TITLE="${MY_USERNAME}'s Blog"

    cd /opt/zeronet
    python zeronet.py --batch siteCreate 2> /opt/zeronet/blog.txt
    if [ ! -f /opt/zeronet/blog.txt ]; then
        echo $'Unable to create blog'
        exit 479
    fi
    blog_address=$(cat blog.txt | grep "Site address" | awk -F ':' '{print $2}')
    blog_private_key=$(cat blog.txt | grep "Site private key" | awk -F ':' '{print $2}')
    ZERONET_BLOG_ADDRESS=${blog_address//[[:blank:]]/}
    ZERONET_BLOG_PRIVATE_KEY=${blog_private_key//[[:blank:]]/}

    if [ ${#ZERONET_BLOG_ADDRESS} -lt 20 ]; then
        echo $"Address:    $ZERONET_BLOG_ADDRESS"
        echo $"Public key: $ZERONET_BLOG_PRIVATE_KEY"
        echo $'Unable to create zeronet blog address'
        exit 7358
    fi

    if [ ${#ZERONET_BLOG_PRIVATE_KEY} -lt 20 ]; then
        echo $"Address:    $ZERONET_BLOG_ADDRESS"
        echo $"Public key: $ZERONET_BLOG_PRIVATE_KEY"
        echo $'Unable to create zeronet blog private key'
        exit 1639
    fi

    if [ ! -d "/opt/zeronet/data/$ZERONET_BLOG_ADDRESS" ]; then
        echo $"Unable to find site directory: /opt/zeronet/data/$ZERONET_BLOG_ADDRESS"
        exit 7638
    fi

    git_clone $ZERONET_BLOG_REPO ZeroBlog
    if [ ! -d /opt/zeronet/ZeroBlog ]; then
        echo $'ZeroBlog repo could not be cloned'
        exit 6739
    fi
    cd /opt/zeronet/ZeroBlog
    git checkout $ZERONET_BLOG_COMMIT -b $ZERONET_BLOG_COMMIT
    if ! grep -q "ZeroNet Blog commit" $COMPLETION_FILE; then
        echo "ZeroNet Blog commit:$ZERONET_BLOG_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/ZeroNet Blog commit.*/ZeroNet Blog commit:$ZERONET_BLOG_COMMIT/g" $COMPLETION_FILE
    fi

    echo $"ZeroNet Blog address:     $ZERONET_BLOG_ADDRESS"
    echo $"ZeroNet Blog private key: $ZERONET_BLOG_PRIVATE_KEY"
    cp -r /opt/zeronet/ZeroBlog/* /opt/zeronet/data/$ZERONET_BLOG_ADDRESS

    if [ ! -d /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data ]; then
        mkdir /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data
    fi
    cp /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data-default/data.json /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data
    sed -i "s/MyZeroBlog/$ZERONET_DEFAULT_BLOG_TITLE/g" /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data/data.json
    sed -i "s/My ZeroBlog./$ZERONET_DEFAULT_BLOG_TAGLINE/g" /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/data/data.json
    sed -i "s/ZeroBlog Demo/$ZERONET_DEFAULT_BLOG_TITLE/g" /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/index.html
    sed -i "s|<h3 class=\"description\">.*|<h3 class=\"description\">$ZERONET_DEFAULT_BLOG_TAGLINE</h3>|g" /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/index.html
    sed -i "s/Blogging platform Demo/Blogging platform/g" /opt/zeronet/data/$ZERONET_BLOG_ADDRESS/content.json
    python zeronet.py siteSign $ZERONET_BLOG_ADDRESS $ZERONET_BLOG_PRIVATE_KEY

    # Add an avahi service
    echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /tmp/zeronet-blog.service
    echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /tmp/zeronet-blog.service
    echo '<service-group>' >> /tmp/zeronet-blog.service
    echo '  <name replace-wildcards="yes">%h ZeroNet Blog</name>' >> /tmp/zeronet-blog.service
    echo '  <service>' >> /tmp/zeronet-blog.service
    echo '    <type>_zeronet._udp</type>' >> /tmp/zeronet-blog.service
    echo "    <port>$ZERONET_PORT</port>" >> /tmp/zeronet-blog.service
    echo "    <txt-record>$ZERONET_URL/$ZERONET_BLOG_ADDRESS</txt-record>" >> /tmp/zeronet-blog.service
    echo '  </service>' >> /tmp/zeronet-blog.service
    echo '</service-group>' >> /tmp/zeronet-blog.service
    cp /tmp/zeronet-blog.service /etc/avahi/services/zeronet-blog.service

    if [ ! -d /home/$MY_USERNAME/.config/zeronet ]; then
        mkdir -p /home/$MY_USERNAME/.config/zeronet
        chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.config
    fi
    echo "$ZERONET_URL/$ZERONET_BLOG_ADDRESS" > /home/$MY_USERNAME/.config/zeronet/myblog

    if ! grep -q "ZeroNet Blog address" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo "ZeroNet Blog address: $ZERONET_BLOG_ADDRESS" >> /home/$MY_USERNAME/README
        echo "ZeroNet Blog private key: $ZERONET_BLOG_PRIVATE_KEY" >> /home/$MY_USERNAME/README
    fi

    echo 'install_zeronet_blog' >> $COMPLETION_FILE
}

function install_zeronet_mail {
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi

    set_repo_commit /opt/zeronet/ZeroMail "ZeroNet Mail commit" "$ZERONET_MAIL_COMMIT" $ZERONET_MAIL_REPO

    if grep -Fxq "install_zeronet_mail" $COMPLETION_FILE; then
        return
    fi

    if [ ! -f /home/$MY_USERNAME/README ]; then
        touch /home/$MY_USERNAME/README
    fi

    if grep -q "ZeroNet Mail address" /home/$MY_USERNAME/README; then
        return
    fi

    if [ ! -d /etc/avahi ]; then
        echo 'Avahi is not installed'
        exit 736
    fi

    ZERONET_DEFAULT_MAIL_TITLE="${MY_USERNAME}'s Mail"

    cd /opt/zeronet
    python zeronet.py --batch siteCreate 2> /opt/zeronet/mail.txt
    if [ ! -f /opt/zeronet/mail.txt ]; then
        echo $'Unable to create mail'
        exit 479
    fi
    mail_address=$(cat mail.txt | grep "Site address" | awk -F ':' '{print $2}')
    mail_private_key=$(cat mail.txt | grep "Site private key" | awk -F ':' '{print $2}')
    ZERONET_MAIL_ADDRESS=${mail_address//[[:blank:]]/}
    ZERONET_MAIL_PRIVATE_KEY=${mail_private_key//[[:blank:]]/}

    if [ ${#ZERONET_MAIL_ADDRESS} -lt 20 ]; then
        echo $"Address:    $ZERONET_MAIL_ADDRESS"
        echo $"Public key: $ZERONET_MAIL_PRIVATE_KEY"
        echo $'Unable to create zeronet mail address'
        exit 7358
    fi

    if [ ${#ZERONET_MAIL_PRIVATE_KEY} -lt 20 ]; then
        echo $"Address:    $ZERONET_MAIL_ADDRESS"
        echo $"Public key: $ZERONET_MAIL_PRIVATE_KEY"
        echo $'Unable to create zeronet mail private key'
        exit 1639
    fi

    if [ ! -d "/opt/zeronet/data/$ZERONET_MAIL_ADDRESS" ]; then
        echo $"Unable to find site directory: /opt/zeronet/data/$ZERONET_MAIL_ADDRESS"
        exit 7638
    fi

    git_clone $ZERONET_MAIL_REPO ZeroMail
    if [ ! -d /opt/zeronet/ZeroMail ]; then
        echo $'ZeroMail repo could not be cloned'
        exit 6739
    fi
    cd /opt/zeronet/ZeroMail
    git checkout $ZERONET_MAIL_COMMIT -b $ZERONET_MAIL_COMMIT
    if ! grep -q "ZeroNet Mail commit" $COMPLETION_FILE; then
        echo "ZeroNet Mail commit:$ZERONET_MAIL_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/ZeroNet Mail commit.*/ZeroNet Mail commit:$ZERONET_MAIL_COMMIT/g" $COMPLETION_FILE
    fi

    echo $"ZeroNet Mail address:     $ZERONET_MAIL_ADDRESS"
    echo $"ZeroNet Mail private key: $ZERONET_MAIL_PRIVATE_KEY"
    cp -r /opt/zeronet/ZeroMail/* /opt/zeronet/data/$ZERONET_MAIL_ADDRESS

    if [ ! -d /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data ]; then
        mkdir /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data
    fi
    cp /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data-default/data.json /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data
    sed -i "s/MyZeroMail/$ZERONET_DEFAULT_MAIL_TITLE/g" /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data/data.json
    sed -i "s/My ZeroMail./$ZERONET_DEFAULT_MAIL_TAGLINE/g" /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/data/data.json
    sed -i "s/ZeroMail Demo/$ZERONET_DEFAULT_MAIL_TITLE/g" /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/index.html
    sed -i "s|<h3 class=\"description\">.*|<h3 class=\"description\">$ZERONET_DEFAULT_MAIL_TAGLINE</h3>|g" /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/index.html
    sed -i "s/Mailging platform Demo/Mailging platform/g" /opt/zeronet/data/$ZERONET_MAIL_ADDRESS/content.json
    python zeronet.py siteSign $ZERONET_MAIL_ADDRESS $ZERONET_MAIL_PRIVATE_KEY

    # Add an avahi service
    echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /tmp/zeronet-mail.service
    echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /tmp/zeronet-mail.service
    echo '<service-group>' >> /tmp/zeronet-mail.service
    echo '  <name replace-wildcards="yes">%h ZeroNet Mail</name>' >> /tmp/zeronet-mail.service
    echo '  <service>' >> /tmp/zeronet-mail.service
    echo '    <type>_zeronet._udp</type>' >> /tmp/zeronet-mail.service
    echo "    <port>$ZERONET_PORT</port>" >> /tmp/zeronet-mail.service
    echo "    <txt-record>$ZERONET_URL/$ZERONET_MAIL_ADDRESS</txt-record>" >> /tmp/zeronet-mail.service
    echo '  </service>' >> /tmp/zeronet-mail.service
    echo '</service-group>' >> /tmp/zeronet-mail.service
    cp /tmp/zeronet-mail.service /etc/avahi/services/zeronet-mail.service

    if [ ! -d /home/$MY_USERNAME/.config/zeronet ]; then
        mkdir -p /home/$MY_USERNAME/.config/zeronet
        chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.config
    fi
    echo "$ZERONET_URL/$ZERONET_MAIL_ADDRESS" > /home/$MY_USERNAME/.config/zeronet/mymail

    if ! grep -q $"ZeroNet Mail address" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo $"ZeroNet Mail address: $ZERONET_MAIL_ADDRESS" >> /home/$MY_USERNAME/README
        echo $"ZeroNet Mail private key: $ZERONET_MAIL_PRIVATE_KEY" >> /home/$MY_USERNAME/README
    fi

    echo 'install_zeronet_mail' >> $COMPLETION_FILE
}

function install_zeronet_forum {
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit /opt/zeronet/ZeroTalk "ZeroNet Forum commit" "$ZERONET_FORUM_COMMIT" $ZERONET_FORUM_REPO

    if grep -Fxq "install_zeronet_forum" $COMPLETION_FILE; then
        return
    fi

    if [ ! -f /home/$MY_USERNAME/README ]; then
        touch /home/$MY_USERNAME/README
    fi

    if grep -q "ZeroNet Forum address" /home/$MY_USERNAME/README; then
        return
    fi

    if [ ! -d /etc/avahi ]; then
        echo $'Avahi is not installed'
        exit 736
    fi

    ZERONET_DEFAULT_FORUM_TITLE=$"${MY_USERNAME}'s Forum"

    cd /opt/zeronet
    python zeronet.py --batch siteCreate 2> /opt/zeronet/forum.txt
    if [ ! -f /opt/zeronet/forum.txt ]; then
        echo $'Unable to create forum'
        exit 479
    fi
    forum_address=$(cat forum.txt | grep "Site address" | awk -F ':' '{print $2}')
    forum_private_key=$(cat forum.txt | grep "Site private key" | awk -F ':' '{print $2}')
    ZERONET_FORUM_ADDRESS=${forum_address//[[:blank:]]/}
    ZERONET_FORUM_PRIVATE_KEY=${forum_private_key//[[:blank:]]/}

    if [ ${#ZERONET_FORUM_ADDRESS} -lt 20 ]; then
        echo $"Address:    $ZERONET_FORUM_ADDRESS"
        echo $"Public key: $ZERONET_FORUM_PRIVATE_KEY"
        echo $'Unable to create zeronet forum address'
        exit 76352
    fi

    if [ ${#ZERONET_FORUM_PRIVATE_KEY} -lt 20 ]; then
        echo $"Address:    $ZERONET_FORUM_ADDRESS"
        echo $"Public key: $ZERONET_FORUM_PRIVATE_KEY"
        echo $'Unable to create zeronet forum private key'
        exit 87356
    fi

    if [ ! -d "/opt/zeronet/data/$ZERONET_FORUM_ADDRESS" ]; then
        echo $"Unable to find site directory: /opt/zeronet/data/$ZERONET_FORUM_ADDRESS"
        exit 7638
    fi

    git_clone $ZERONET_FORUM_REPO ZeroTalk
    if [ ! -d /opt/zeronet/ZeroTalk ]; then
        echo $'ZeroTalk repo could not be cloned'
        exit 6739
    fi
    git checkout $ZERONET_FORUM_COMMIT -b $ZERONET_FORUM_COMMIT
    if ! grep -q "ZeroNet Forum commit" $COMPLETION_FILE; then
        echo "ZeroNet Forum commit:$ZERONET_FORUM_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/ZeroNet Forum commit.*/ZeroNet Forum commit:$ZERONET_FORUM_COMMIT/g" $COMPLETION_FILE
    fi

    echo $"Forum address:     $ZERONET_FORUM_ADDRESS"
    echo $"Forum private key: $ZERONET_FORUM_PRIVATE_KEY"
    cp -r /opt/zeronet/ZeroTalk/* /opt/zeronet/data/$ZERONET_FORUM_ADDRESS
    sed -i "s/ZeroBoard/$ZERONET_DEFAULT_FORUM_TITLE/g" /opt/zeronet/data/$ZERONET_FORUM_ADDRESS/index.html
    sed -i "s/ZeroTalk/$ZERONET_DEFAULT_FORUM_TITLE/g" /opt/zeronet/data/$ZERONET_FORUM_ADDRESS/index.html
    sed -i "s|Demo for dynamic, decentralized content publishing.|$ZERONET_DEFAULT_FORUM_TAGLINE|g" /opt/zeronet/data/$ZERONET_FORUM_ADDRESS/index.html
    sed -i 's/Messaging Board Demo/Messaging Board/g' /opt/zeronet/data/$ZERONET_FORUM_ADDRESS/content.json
    sed -i "s/ZeroBoard/$ZERONET_DEFAULT_FORUM_TITLE/g" /opt/zeronet/data/$ZERONET_FORUM_ADDRESS/content.json
    python zeronet.py siteSign $ZERONET_FORUM_ADDRESS $ZERONET_FORUM_PRIVATE_KEY --inner_path data/users/content.json

    # Add an avahi service
    echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /tmp/zeronet-forum.service
    echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /tmp/zeronet-forum.service
    echo '<service-group>' >> /tmp/zeronet-forum.service
    echo '  <name replace-wildcards="yes">%h ZeroNet Forum</name>' >> /tmp/zeronet-forum.service
    echo '  <service>' >> /tmp/zeronet-forum.service
    echo '    <type>_zeronet._udp</type>' >> /tmp/zeronet-forum.service
    echo "    <port>$ZERONET_PORT</port>" >> /tmp/zeronet-forum.service
    echo "    <txt-record>$ZERONET_URL/$ZERONET_FORUM_ADDRESS</txt-record>" >> /tmp/zeronet-forum.service
    echo '  </service>' >> /tmp/zeronet-forum.service
    echo '</service-group>' >> /tmp/zeronet-forum.service
    sudo cp /tmp/zeronet-forum.service /etc/avahi/services/zeronet-forum.service

    if [ ! -d /home/$MY_USERNAME/.config/zeronet ]; then
        mkdir -p /home/$MY_USERNAME/.config/zeronet
        chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.config
    fi
    echo "$ZERONET_URL/$ZERONET_FORUM_ADDRESS" > /home/$MY_USERNAME/.config/zeronet/myforum

    if ! grep -q $"ZeroNet Forum address" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo $"ZeroNet Forum address: $ZERONET_FORUM_ADDRESS" >> /home/$MY_USERNAME/README
        echo $"ZeroNet Forum private key: $ZERONET_FORUM_PRIVATE_KEY" >> /home/$MY_USERNAME/README
    fi

    echo 'install_zeronet_forum' >> $COMPLETION_FILE
}

function install_zeronet {
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit /opt/zeronet "ZeroNet commit" "$ZERONET_COMMIT" $ZERONET_REPO

    if grep -Fxq "install_zeronet" $COMPLETION_FILE; then
        return
    fi

    ${PROJECT_NAME}=mesh-install zeronet
    systemctl daemon-reload
    systemctl start tracker.service
    systemctl start zeronet.service

    echo 'mesh_zeronet' >> $COMPLETION_FILE
}

function install_vpn_tunnel {
    if ! grep -q "repo.universe-factory.net" /etc/apt/sources.list; then
        echo 'deb http://repo.universe-factory.net/debian/ sid main' >> /etc/apt/sources.list
        gpg --keyserver pgpkeys.mit.edu --recv-key 16EF3F64CB201D9C
        if [ ! "$?" = "0" ]; then
            exit 76272
        fi
        gpg -a --export 16EF3F64CB201D9C | sudo apt-key add -
        apt-get update
        apt-get -y install fastd
        if [ ! "$?" = "0" ]; then
            exit 52026
        fi
    fi
}

# ath9k_htc driver
function install_atheros_wifi {
    if grep -Fxq "install_atheros_wifi" $COMPLETION_FILE; then
        return
    fi
    if [ $INSTALLING_ON_BBB != "yes" ]; then
        return
    fi
    if [[ $ENABLE_BABEL != "yes" && $ENABLE_BATMAN != "yes" && $ENABLE_CJDNS != "yes" ]]; then
        return
    fi
    if [ -d $INSTALL_DIR/open-ath9k-htc-firmware ]; then
        return
    fi
    # have drivers already been installed ?
    if [ -f /lib/firmware/htc_9271.fw ]; then
        return
    fi
    apt-get -y install build-essential cmake git m4 texinfo
    if [ ! -d $INSTALL_DIR ]; then
        mkdir -p $INSTALL_DIR
    fi
    cd $INSTALL_DIR
    if [ ! -d $INSTALL_DIR/open-ath9k-htc-firmware ]; then
        git_clone $ATHEROS_WIFI_REPO $INSTALL_DIR/open-ath9k-htc-firmware
        if [ ! "$?" = "0" ]; then
            rm -rf $INSTALL_DIR/open-ath9k-htc-firmware
            exit 74283
        fi
    fi
    cd $INSTALL_DIR/open-ath9k-htc-firmware
    git checkout 1.4.0
    make toolchain
    if [ ! "$?" = "0" ]; then
        rm -rf $INSTALL_DIR/open-ath9k-htc-firmware
        exit 24820
    fi
    make firmware
    if [ ! "$?" = "0" ]; then
        rm -rf $INSTALL_DIR/open-ath9k-htc-firmware
        exit 63412
    fi
    cp target_firmware/*.fw /lib/firmware/
    if [ ! "$?" = "0" ]; then
        exit 74681
    fi
    echo 'install_atheros_wifi' >> $COMPLETION_FILE
}

function configure_avahi {
    if grep -Fxq "configure_avahi" $COMPLETION_FILE; then
        return
    fi
    # only enable avahi if we're doing mesh networking
    if [[ $ENABLE_BABEL != "yes" && $ENABLE_BATMAN != "yes" && $ENABLE_CJDNS != "yes" ]]; then
        return
    fi

    ${PROJECT_NAME}-mesh-install avahi
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install avahi'
        exit 68442
    fi

    if [ $DEFAULT_DOMAIN_NAME ]; then
        sed -i "s|#host-name=.*|host-name=$DEFAULT_DOMAIN_NAME|g" /etc/avahi/avahi-daemon.conf
        sed -i "s|host-name=.*|host-name=$DEFAULT_DOMAIN_NAME|g" /etc/avahi/avahi-daemon.conf
    else
        decarray=( 1 2 3 4 5 6 7 8 9 0 )
        PEER_ID=${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}${decarray[$RANDOM%10]}
        sed -i "s|#host-name=.*|host-name=P$PEER_ID|g" /etc/avahi/avahi-daemon.conf
        sed -i "s|host-name=.*|host-name=P$PEER_ID|g" /etc/avahi/avahi-daemon.conf
    fi

    echo 'configure_avahi' >> $COMPLETION_FILE
}

function mesh_babel {
    if grep -Fxq "mesh_babel" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_BABEL != "yes" ]]; then
        return
    fi

    ${PROJECT_NAME}-mesh-install babel
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install babel'
        exit 67242
    fi

    echo 'mesh_babel' >> $COMPLETION_FILE
}

function mesh_batman {
    if grep -Fxq "mesh_batman" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_BATMAN != "yes" ]]; then
        return
    fi

    ${PROJECT_NAME}-mesh-install -f batman
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install batman'
        exit 72524
    fi

    if ! grep -q "Mesh Networking (B.A.T.M.A.N)" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo 'Mesh Networking (B.A.T.M.A.N)' >> /home/$MY_USERNAME/README
        echo '=============================' >> /home/$MY_USERNAME/README
        echo "Mesh ESSID: $ESSID" >> /home/$MY_USERNAME/README
        echo "Mesh cell ID: $BATMAN_CELLID" >> /home/$MY_USERNAME/README
        echo "Mesh wifi channel: $WIFI_CHANNEL" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'mesh_batman' >> $COMPLETION_FILE
}

function remove_instructions_from_motd {
    sed -i '/## /d' /etc/motd
}

function check_hwrng {
    if [[ $HWRNG_TYPE == "beaglebone" ]]; then
        # If hardware random number generation was enabled then make sure that the device exists.
        # if /dev/hwrng is not found then any subsequent cryptographic key generation would
        # suffer from low entropy and might be insecure
        if [ ! -e /dev/hwrng ]; then
            ls /dev/hw*
            echo $'The hardware random number generator is enabled but could not be detected on'
            echo $'/dev/hwrng.  There may be a problem with the installation or the Beaglebone hardware.'
            exit 75
        fi
    fi

    # If a OneRNG device was installed then verify its firmware
    #check_onerng_verification
}

function get_mariadb_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "MariaDB password" /home/$MY_USERNAME/README; then
            if [ -f $DATABASE_PASSWORD_FILE ]; then
                MARIADB_PASSWORD=$(cat $DATABASE_PASSWORD_FILE)
            else
                MARIADB_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "MariaDB password" | awk -F ':' '{print $2}' | sed 's/^ *//')
                echo "$MARIADB_PASSWORD" > $DATABASE_PASSWORD_FILE
                chmod 600 $DATABASE_PASSWORD_FILE
            fi
        fi
    fi
}

function get_mariadb_gnusocial_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "MariaDB gnusocial admin password" /home/$MY_USERNAME/README; then
            MICROBLOG_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "MariaDB gnusocial admin password" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
        if grep -q "Microblog administrator password" /home/$MY_USERNAME/README; then
            MICROBLOG_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "Microblog administrator password" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function get_mariadb_rss_reader_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "RSS reader admin password" /home/$MY_USERNAME/README; then
            RSS_READER_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "RSS reader admin password" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function get_mariadb_git_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "Gogs admin user password" /home/$MY_USERNAME/README; then
            GIT_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "Gogs admin user password" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function get_mariadb_hubzilla_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "MariaDB Hubzilla admin password" /home/$MY_USERNAME/README; then
            HUBZILLA_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "MariaDB Hubzilla admin password" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function create_freedns_updater {
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi

    # currently inadyn doesn't work as expected with freeDNS, so this is a workaround
    if grep -Fxq "create_freedns_updater" $COMPLETION_FILE; then
        return
    fi
    if [[ $DDNS_PROVIDER != "default@freedns.afraid.org" ]]; then
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    FREEDNS_WGET='wget -q --read-timeout=0.0 --waitretry=5 --tries=4 https://freedns.afraid.org/dynamic/update.php?'

    echo '#!/bin/bash' > /usr/bin/dynamicdns
    echo 'cd /tmp' >> /usr/bin/dynamicdns
    if [ $DEFAULT_DOMAIN_CODE ]; then
        echo "# $DEFAULT_DOMAIN_NAME" >> /usr/bin/dynamicdns
        echo "$FREEDNS_WGET$DEFAULT_DOMAIN_CODE=" >> /usr/bin/dynamicdns
    fi
    if [ $WIKI_CODE ]; then
        if [[ $WIKI_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $WIKI_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$WIKI_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    if [ $FULLBLOG_CODE ]; then
        if [[ $FULLBLOG_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $FULLBLOG_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$FULLBLOG_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    if [ $HUBZILLA_CODE ]; then
        if [[ $HUBZILLA_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $HUBZILLA_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$HUBZILLA_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    if [ $MICROBLOG_CODE ]; then
        if [[ $MICROBLOG_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $MICROBLOG_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$MICROBLOG_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    if [ $GIT_CODE ]; then
        if [[ $GIT_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $GIT_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$GIT_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    if [ $MEDIAGOBLIN_CODE ]; then
        if [[ $MEDIAGOBLIN_CODE != "$DEFAULT_DOMAIN_CODE" ]]; then
            echo "# $MEDIAGOBLIN_DOMAIN_NAME" >> /usr/bin/dynamicdns
            echo "$FREEDNS_WGET$MEDIAGOBLIN_CODE=" >> /usr/bin/dynamicdns
        fi
    fi
    echo 'exit 0' >> /usr/bin/dynamicdns
    chmod 600 /usr/bin/dynamicdns
    chmod +x /usr/bin/dynamicdns

    if ! grep -q "/usr/bin/dynamicdns" /etc/crontab; then
        echo '*/3            * *   *   *   root /usr/bin/dynamicdns' >> /etc/crontab
        systemctl restart cron
    fi

    echo 'create_freedns_updater' >> $COMPLETION_FILE
}

function backup_to_friends_servers {
    # update crontab
    echo '#!/bin/bash' > /etc/cron.daily/backuptofriends
    echo "if [ -f /usr/local/bin/${PROJECT_NAME}-backup-remote ]; then" >> /etc/cron.daily/backuptofriends
    echo "    /usr/local/bin/${PROJECT_NAME}-backup-remote" >> /etc/cron.daily/backuptofriends
    echo 'else' >> /etc/cron.daily/backuptofriends
    echo "    /usr/bin/${PROJECT_NAME}-backup-remote" >> /etc/cron.daily/backuptofriends
    echo 'fi' >> /etc/cron.daily/backuptofriends
    chmod +x /etc/cron.daily/backuptofriends
}

function remove_default_user {
    # make sure you don't use the default user account
    if [[ $MY_USERNAME == "debian" ]]; then
        echo 'Do not use the default debian user account. Create a different user with: adduser [username]'
        exit 68
    fi
    # remove the default debian user to prevent it from becoming an attack vector
    if [ -d /home/debian ]; then
        userdel -r debian
        echo 'Default debian user account removed'
    fi
}

function enforce_good_passwords {
    # because humans are generally bad at choosing passwords
    if grep -Fxq "enforce_good_passwords" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install libpam-cracklib

    sed -i 's/password.*requisite.*pam_cracklib.so.*/password        required                       pam_cracklib.so retry=2 dcredit=-4 ucredit=-1 ocredit=-1 lcredit=0 minlen=10 reject_username/g' /etc/pam.d/common-password
    echo 'enforce_good_passwords' >> $COMPLETION_FILE
}

function change_login_message {
    if grep -Fxq "change_login_message" $COMPLETION_FILE; then
        return
    fi

    # remove automatic motd creator if it exists
    if [ -f /etc/init.d/motd ]; then
        rm -f /etc/init.d/motd
    fi

    echo '' > /etc/motd
    echo ".---.                  .              .                   " >> /etc/motd
    echo "|                      |              |                   " >> /etc/motd
    echo "|--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-. " >> /etc/motd
    echo "|    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-' " >> /etc/motd
    echo "'    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'" >> /etc/motd

    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" ]]; then
        echo $'               M A I L B O X   E D I T I O N' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_SOCIAL" ]]; then
        echo $'                 S O C I A L   E D I T I O N' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" ]]; then
        echo $'                  C H A T   E D I T I O N' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" ]]; then
        echo $'                  C L O U D   E D I T I O N' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" ]]; then
        echo $'                 W R I T E R   E D I T I O N ' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_MEDIA" ]]; then
        echo $'                  M E D I A   E D I T I O N' >> /etc/motd
    fi

    if [[ $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        echo $'             D E V E L O P E R   E D I T I O N' >> /etc/motd
    fi

    echo '' >> /etc/motd
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        echo $'                  Freedom in the Cloud' >> /etc/motd
    else
        echo $'                   Freedom in the Mesh' >> /etc/motd
    fi
    echo '' >> /etc/motd
    echo 'change_login_message' >> $COMPLETION_FILE
}

function search_for_attached_usb_drive {
    # If a USB drive is attached then search for email,
    # gpg, ssh keys and emacs configuration
    if grep -Fxq "search_for_attached_usb_drive" $COMPLETION_FILE; then
        return
    fi
    if [ -b $USB_DRIVE ]; then
        if [ ! -d $USB_MOUNT ]; then
            echo $'Mounting USB drive'
            mkdir $USB_MOUNT
            mount $USB_DRIVE $USB_MOUNT
        fi
        if ! [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" ]]; then
            if [ -d $USB_MOUNT/Maildir ]; then
                echo $'Maildir found on USB drive'
                IMPORT_MAILDIR=$USB_MOUNT/Maildir
            fi
            if [ -d $USB_MOUNT/.gnupg ]; then
                echo $'Importing GPG keyring'
                cp -r $USB_MOUNT/.gnupg /home/$MY_USERNAME
                chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.gnupg
                GPG_KEYS_IMPORTED="yes"
                if [ ! -f /home/$MY_USERNAME/.gnupg/secring.gpg ]; then
                    echo $'GPG files did not copy'
                    exit 73529
                fi
            fi

            if [ -f $USB_MOUNT/.procmailrc ]; then
                echo $'Importing procmail settings'
                cp $USB_MOUNT/.procmailrc /home/$MY_USERNAME
                chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
            fi

            if [ -f $USB_MOUNT/private_key.gpg ]; then
                echo $'GPG private key found on USB drive'
                MY_GPG_PRIVATE_KEY=$USB_MOUNT/private_key.gpg
            fi
            if [ -f $USB_MOUNT/public_key.gpg ]; then
                echo $'GPG public key found on USB drive'
                MY_GPG_PUBLIC_KEY=$USB_MOUNT/public_key.gpg
            fi
        fi
        if [ -d $USB_MOUNT/prosody ]; then
            if [ ! -d $XMPP_DIRECTORY ]; then
                mkdir $XMPP_DIRECTORY
            fi
            cp -r $USB_MOUNT/prosody/* $XMPP_DIRECTORY
            chown -R prosody:prosody $XMPP_DIRECTORY
        fi
        if [ -d $USB_MOUNT/.ssh ]; then
            echo $'Importing ssh keys'
            cp -r $USB_MOUNT/.ssh /home/$MY_USERNAME
            chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.ssh
            # for security delete the ssh keys from the usb drive
            if [ ! -f /home/$MY_USERNAME/.ssh/id_rsa ]; then
                echo $'ssh files did not copy'
                exit 8
            fi
        fi
        if [ -f $USB_MOUNT/.emacs ]; then
            echo $'Importing .emacs file'
            cp -f $USB_MOUNT/.emacs /home/$MY_USERNAME/.emacs
            chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.emacs
        fi
        if [ -d $USB_MOUNT/.emacs.d ]; then
            echo $'Importing .emacs.d directory'
            cp -r $USB_MOUNT/.emacs.d /home/$MY_USERNAME
            chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.emacs.d
        fi
        if [ -d $USB_MOUNT/ssl ]; then
            echo $'Importing SSL certificates'
            cp -r $USB_MOUNT/ssl/* /etc/ssl
            chmod 640 /etc/ssl/certs/*
            chmod 400 /etc/ssl/private/*
            # change ownership of some certificates
            if [ -d /etc/prosody ]; then
                chown prosody:prosody /etc/ssl/private/xmpp.*
                chown prosody:prosody /etc/ssl/certs/xmpp.*
            fi
            if [ -d /etc/dovecot ]; then
                chown root:dovecot /etc/ssl/certs/dovecot.*
                chown root:dovecot /etc/ssl/private/dovecot.*
            fi
            if [ -f /etc/ssl/private/exim.key ]; then
                cp /etc/ssl/private/exim.key /etc/exim4
                cp /etc/ssl/certs/exim.crt /etc/exim4
                cp /etc/ssl/certs/exim.dhparam /etc/exim4
                chown root:Debian-exim /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
                chmod 640 /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
            fi
        fi
        if [ -d $USB_MOUNT/personal ]; then
            echo $'Importing personal directory'
            cp -r $USB_MOUNT/personal /home/$MY_USERNAME
            chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/personal
        fi
    else
        if [ -d $USB_MOUNT ]; then
            umount $USB_MOUNT
            rm -rf $USB_MOUNT
        fi
        echo $'No USB drive attached'
    fi
    echo 'search_for_attached_usb_drive' >> $COMPLETION_FILE
}

function create_repo_sources {
    if grep -Fxq "create_repo_sources" $COMPLETION_FILE; then
        return
    fi
    rm -rf /var/lib/apt/lists/*
    apt-get clean

    echo "deb http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION} main" > /etc/apt/sources.list
    echo "deb-src http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION} main" >> /etc/apt/sources.list
    echo '' >> /etc/apt/sources.list
    echo "deb http://security.debian.org/ ${DEBIAN_VERSION}/updates main" >> /etc/apt/sources.list
    echo "deb-src http://security.debian.org/ ${DEBIAN_VERSION}/updates main" >> /etc/apt/sources.list
    echo '' >> /etc/apt/sources.list
    echo "deb http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION}-updates main" >> /etc/apt/sources.list
    echo "deb-src http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION}-updates main" >> /etc/apt/sources.list
    echo '' >> /etc/apt/sources.list
    echo "deb http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION}-backports main" >> /etc/apt/sources.list
    echo "deb-src http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION}-backports main" >> /etc/apt/sources.list

    apt-get update
    apt-get -y install apt-transport-https

    echo 'create_repo_sources' >> $COMPLETION_FILE
}

function initial_setup {
    if grep -Fxq "initial_setup" $COMPLETION_FILE; then
        return
    fi

    apt-get -y remove --purge apache*
    apt-get -y dist-upgrade
    apt-get -y install ca-certificates emacs24 cpulimit
    apt-get -y install cryptsetup libgfshare-bin obnam sshpass wget
    apt-get -y install avahi-daemon avahi-utils avahi-discover
    apt-get -y install connect-proxy

    if [ ! -d $INSTALL_DIR ]; then
        mkdir -p $INSTALL_DIR
    fi

    echo 'initial_setup' >> $COMPLETION_FILE
}

function allow_ssh_to_onion_address {
    if [ ! -d /home/$MY_USERNAME/.ssh ]; then
        mkdir /home/$MY_USERNAME/.ssh
    fi
    if [ ! -d /etc/tor ]; then
        echo $'Tor not found when updating ssh'
        exit 528257
    fi
    if ! grep -q "onion" /home/$MY_USERNAME/.ssh/config; then
        echo 'Host *.onion' >> /home/$MY_USERNAME/.ssh/config
        echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /home/$MY_USERNAME/.ssh/config
    fi
}

function install_tor {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_tor" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install tor
    if [ ! -f /etc/tor/torrc ]; then
        echo 'Tor failed to install'
        exit 38259
    fi
    echo 'install_tor' >> $COMPLETION_FILE
}

function resolve_dns_via_tor {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "resolve_dns_via_tor" $COMPLETION_FILE; then
        return
    fi
    if [ ! -f /etc/tor/torrc ]; then
        echo $'tor was not installed'
        exit 52952
    fi

    # resolve DNS via tor
    if ! grep 'DNSPort 53' /etc/tor/torrc; then
        echo 'DNSPort 53' >> /etc/tor/torrc
        echo 'AutomapHostsOnResolve 1' >> /etc/tor/torrc
        echo 'AutomapHostsSuffixes .exit,.onion' >> /etc/tor/torrc
        systemctl restart tor
    fi

    # don't change resolv.conf
    sed -i 's|, domain-name-servers||g' /etc/dhcp/dhclient.conf

    # point resolv.conf to tor
    echo 'nameserver 127.0.0.1:53' > /etc/resolv.conf

    echo 'resolve_dns_via_tor' >> $COMPLETION_FILE
}

function enable_ssh_via_onion {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "enable_ssh_via_onion" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install tor connect-proxy
    if ! grep -q 'Host *.onion' /home/$MY_USERNAME/.ssh/config; then
        if [ ! -d /home/$MY_USERNAME/.ssh ]; then
            mkdir /home/$MY_USERNAME/.ssh
        fi
        echo 'Host *.onion' >> /home/$MY_USERNAME/.ssh/config
        echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /home/$MY_USERNAME/.ssh/config
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.ssh
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.ssh/config
    fi
    if ! grep -q 'Host *.onion' /root/.ssh/config; then
        if [ ! -d /root/.ssh ]; then
            mkdir /root/.ssh
        fi
        echo 'Host *.onion' >> /root/.ssh/config
        echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /root/.ssh/config
    fi
    echo 'enable_ssh_via_onion' >> $COMPLETION_FILE
}

function install_editor {
    if grep -Fxq "install_editor" $COMPLETION_FILE; then
        return
    fi
    update-alternatives --set editor /usr/bin/emacs24

    # A minimal emacs configuration
    #echo -n "(add-to-list 'load-path " > /home/$MY_USERNAME/.emacs
    #echo '"~/.emacs.d/")' >> /home/$MY_USERNAME/.emacs
    #echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Remove trailing whitepace ======================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo ";;(add-hook 'before-save-hook 'delete-trailing-whitespace)" >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo ';; Goto a line number with CTRL-l' >> /home/$MY_USERNAME/.emacs
    echo -n '(global-set-key "\C-l" ' >> /home/$MY_USERNAME/.emacs
    echo "'goto-line)" >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Show line numbers ==============================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo "(add-hook 'find-file-hook (lambda () (linum-mode 1)))" >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Enable line wrapping in org-mode ===============================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo " (add-hook 'org-mode-hook" >> /home/$MY_USERNAME/.emacs
    echo "           '(lambda ()" >> /home/$MY_USERNAME/.emacs
    echo "              (visual-line-mode 1)))" >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Enable shift select in org mode ================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(setq org-support-shift-select t)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Set standard indent to 4 rather that 4 =========================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(setq standard-indent 4)' >> /home/$MY_USERNAME/.emacs
    echo '(setq-default tab-width 4)' >> /home/$MY_USERNAME/.emacs
    echo '(setq c-basic-offset 4)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Support Wheel Mouse Scrolling ==================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(mouse-wheel-mode t)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Place Backup Files in Specific Directory =======================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(setq make-backup-files t)' >> /home/$MY_USERNAME/.emacs
    echo '(setq version-control t)' >> /home/$MY_USERNAME/.emacs
    echo '(setq backup-directory-alist (quote ((".*" . "~/.emacs_backups/"))))' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Make Text mode the default mode for new buffers ================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo "(setq default-major-mode 'text-mode)" >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Line length ====================================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(setq-default fill-column 72)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Enable Line and Column Numbering ===============================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(line-number-mode 1)' >> /home/$MY_USERNAME/.emacs
    echo '(column-number-mode 1)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Turn on Auto Fill mode automatically in all modes ==============' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo ';; Auto-fill-mode the the automatic wrapping of lines and insertion of' >> /home/$MY_USERNAME/.emacs
    echo ';; newlines when the cursor goes over the column limit.' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo ';; This should actually turn on auto-fill-mode by default in all major' >> /home/$MY_USERNAME/.emacs
    echo ';; modes. The other way to do this is to turn on the fill for specific modes' >> /home/$MY_USERNAME/.emacs
    echo ';; via hooks.' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo '(setq auto-fill-mode 1)' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo $';; ===== Enable GPG encryption =========================================' >> /home/$MY_USERNAME/.emacs
    echo '' >> /home/$MY_USERNAME/.emacs
    echo "(require 'epa)" >> /home/$MY_USERNAME/.emacs
    echo '(epa-file-enable)' >> /home/$MY_USERNAME/.emacs
    cp /home/$MY_USERNAME/.emacs /root/.emacs
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.emacs

    echo 'install_editor' >> $COMPLETION_FILE
}

function enable_zram {
    if grep -Fxq "enable_zram" $COMPLETION_FILE; then
        return
    fi

    if [[ $INSTALLED_WITHIN_DOCKER == "yes" || $INSTALLING_ON_BBB != "yes" ]]; then
        ${PROJECT_NAME}-zram off
        return
    fi

    ${PROJECT_NAME}-zram on

    echo 'enable_zram' >> $COMPLETION_FILE
}

function check_onerng_verification {
    if grep -Fxq "check_onerng_verification" $COMPLETION_FILE; then
        return
    fi
    if [[ $HWRNG_TYPE != "onerng" ]]; then
        return
    fi
    echo $'Checking OneRNG firmware verification'
    last_onerng_validation=$(cat /var/log/syslog.1 | grep "OneRNG: firmware verification" | awk '/./{line=$0} END{print line}')
    if [[ $last_onerng_validation != *"passed OK"* ]]; then
        last_onerng_validation=$(cat /var/log/syslog | grep "OneRNG: firmware verification" | awk '/./{line=$0} END{print line}')
        if [[ $last_onerng_validation != *"passed OK"* ]]; then
            echo $last_onerng_validation
            echo $'OneRNG firmware verification failed'
            exit 735026
        fi
    fi
    echo $'OneRNG firmware verification passed'
    # if haveged was previously installed then remove it
    apt-get -y remove haveged
    echo 'check_onerng_verification' >> $COMPLETION_FILE
}

function install_onerng {
    apt-get -y install rng-tools at python-gnupg

    # Move to the installation directory
    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    cd $INSTALL_DIR

    # Download the package
    if [ ! -f $ONERNG_PACKAGE ]; then
        wget $ONERNG_PACKAGE_DOWNLOAD
        mv "$ONERNG_PACKAGE?raw=true" $ONERNG_PACKAGE
    fi
    if [ ! -f $ONERNG_PACKAGE ]; then
        echo $"OneRNG package could not be downloaded"
        exit 59249
    fi

    # Check the hash
    hash=$(sha256sum $ONERNG_PACKAGE | awk -F ' ' '{print $1}')
    if [[ $hash != $ONERNG_PACKAGE_HASH ]]; then
        echo $"OneRNG package: $ONERNG_PACKAGE"
        echo $"Hash does not match. This could indicate that the package has been tampered with."
        echo $"OneRNG expected package hash: $ONERNG_PACKAGE_HASH"
        echo $"OneRNG actual hash: $hash"
        exit 25934
    fi

    # install the package
    dpkg -i $ONERNG_PACKAGE

    # Check that the install worked
    if [ ! -f /etc/onerng.conf ]; then
        echo $'OneRNG configuration file not found. The package may not have installed successfully.'
        exit 42904
    fi

    dialog --title $"OneRNG Device" \
           --msgbox $"Please plug in the OneRNG device" 6 40

    # check rng-tools configuration
    if ! grep -q "/dev/$ONERNG_DEVICE" /etc/default/rng-tools; then
        echo "HRNGDEVICE=/dev/$ONERNG_DEVICE" >> /etc/default/rng-tools
    fi

    systemctl restart rng-tools
}

function random_number_generator {
    if grep -Fxq "random_number_generator" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # it is assumed that docker uses the random number
        # generator of the host system
        return
    fi

    # if the hrng type has not been set but /dev/hwrng is detected
    if [[ $HWRNG_TYPE != "beaglebone" ]]; then
        if [ -e /dev/hwrng ]; then
            HWRNG_TYPE="beaglebone"
        fi
    fi

    case $HWRNG_TYPE in
        beaglebone)
            apt-get -y install rng-tools
            sed -i 's|#HRNGDEVICE=/dev/hwrng|HRNGDEVICE=/dev/hwrng|g' /etc/default/rng-tools
            ;;
        onerng)
            install_onerng
            ;;
        *)
            apt-get -y install haveged
            ;;
    esac

    echo 'random_number_generator' >> $COMPLETION_FILE
}

function configure_ssh {
    if grep -Fxq "configure_ssh" $COMPLETION_FILE; then
        return
    fi
    sed -i "s/Port .*/Port $SSH_PORT/g" /etc/ssh/sshd_config
    sed -i 's/PermitRootLogin.*/PermitRootLogin no/g' /etc/ssh/sshd_config
    sed -i 's/X11Forwarding.*/X11Forwarding no/g' /etc/ssh/sshd_config
    sed -i 's/ServerKeyBits.*/ServerKeyBits 4096/g' /etc/ssh/sshd_config
    sed -i 's/TCPKeepAlive.*/TCPKeepAlive no/g' /etc/ssh/sshd_config
    sed -i 's|HostKey /etc/ssh/ssh_host_dsa_key|#HostKey /etc/ssh/ssh_host_dsa_key|g' /etc/ssh/sshd_config
    sed -i 's|HostKey /etc/ssh/ssh_host_ecdsa_key|#HostKey /etc/ssh/ssh_host_ecdsa_key|g' /etc/ssh/sshd_config
    if ! grep -q 'DebianBanner' /etc/ssh/sshd_config; then
        echo 'DebianBanner no' >> /etc/ssh/sshd_config
    else
        sed -i 's|DebianBanner.*|DebianBanner no|g' /etc/ssh/sshd_config
    fi
    if grep -q 'ClientAliveInterval' /etc/ssh/sshd_config; then
        sed -i 's/ClientAliveInterval.*/ClientAliveInterval 60/g' /etc/ssh/sshd_config
    else
        echo 'ClientAliveInterval 60' >> /etc/ssh/sshd_config
    fi
    if grep -q 'ClientAliveCountMax' /etc/ssh/sshd_config; then
        sed -i 's/ClientAliveCountMax.*/ClientAliveCountMax 3/g' /etc/ssh/sshd_config
    else
        echo 'ClientAliveCountMax 3' >> /etc/ssh/sshd_config
    fi
    if grep -q 'Ciphers' /etc/ssh/sshd_config; then
        sed -i "s|Ciphers.*|Ciphers $SSH_CIPHERS|g" /etc/ssh/sshd_config
    else
        echo "Ciphers $SSH_CIPHERS" >> /etc/ssh/sshd_config
    fi
    if grep -q 'MACs' /etc/ssh/sshd_config; then
        sed -i "s|MACs.*|MACs $SSH_MACS|g" /etc/ssh/sshd_config
    else
        echo "MACs $SSH_MACS" >> /etc/ssh/sshd_config
    fi
    if grep -q 'KexAlgorithms' /etc/ssh/sshd_config; then
        sed -i "s|KexAlgorithms.*|KexAlgorithms $SSH_KEX|g" /etc/ssh/sshd_config
    else
        echo "KexAlgorithms $SSH_KEX" >> /etc/ssh/sshd_config
    fi

    apt-get -y install fail2ban
    echo 'configure_ssh' >> $COMPLETION_FILE
}

function configure_ssh_onion {
    if grep -Fxq "configure_ssh_onion" $COMPLETION_FILE; then
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    SSH_ONION_HOSTNAME=$(add_onion_service ssh ${SSH_PORT} ${SSH_PORT})

    if ! grep -q "ssh onion domain" $COMPLETION_FILE; then
        echo "ssh onion domain:${SSH_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|ssh onion domain.*|ssh onion domain:${SSH_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi

    echo 'configure_ssh_onion' >> $COMPLETION_FILE
}

# see https://stribika.github.io/2015/01/04/secure-secure-shell.html
function ssh_remove_small_moduli {
    awk '$5 > 2000' /etc/ssh/moduli > ~/moduli
    mv ~/moduli /etc/ssh/moduli
}

function configure_ssh_client {
    if grep -Fxq "configure_ssh_client" $COMPLETION_FILE; then
        return
    fi
    #sed -i 's/#   PasswordAuthentication.*/   PasswordAuthentication no/g' /etc/ssh/ssh_config
    #sed -i 's/#   ChallengeResponseAuthentication.*/   ChallengeResponseAuthentication no/g' /etc/ssh/ssh_config
    sed -i "s/#   HostKeyAlgorithms.*/   HostKeyAlgorithms $SSH_HOST_KEY_ALGORITHMS/g" /etc/ssh/ssh_config
    sed -i "s/#   Ciphers.*/   Ciphers $SSH_CIPHERS/g" /etc/ssh/ssh_config
    sed -i "s/#   MACs.*/   MACs $SSH_MACS/g" /etc/ssh/ssh_config
    if ! grep -q "HostKeyAlgorithms" /etc/ssh/ssh_config; then
        echo "   HostKeyAlgorithms $SSH_HOST_KEY_ALGORITHMS" >> /etc/ssh/ssh_config
    fi
    sed -i "s/Ciphers.*/Ciphers $SSH_CIPHERS/g" /etc/ssh/ssh_config
    if ! grep -q "Ciphers " /etc/ssh/ssh_config; then
        echo "   Ciphers $SSH_CIPHERS" >> /etc/ssh/ssh_config
    fi
    sed -i "s/MACs.*/MACs $SSH_MACS/g" /etc/ssh/ssh_config
    if ! grep -q "MACs " /etc/ssh/ssh_config; then
        echo "   MACs $SSH_MACS" >> /etc/ssh/ssh_config
    fi

    # Create ssh keys
    if [ ! -f ~/.ssh/id_ed25519 ]; then
        ssh-keygen -t ed25519 -o -a 100
    fi
    if [ ! -f ~/.ssh/id_rsa ]; then
        ssh-keygen -t rsa -b 4096 -o -a 100
    fi

    ssh_remove_small_moduli
    echo 'configure_ssh_client' >> $COMPLETION_FILE
}

function regenerate_ssh_keys {
    if grep -Fxq "regenerate_ssh_keys" $COMPLETION_FILE; then
        return
    fi
    rm -f /etc/ssh/ssh_host_*
    dpkg-reconfigure openssh-server
    ssh_remove_small_moduli
    systemctl restart ssh
    echo 'regenerate_ssh_keys' >> $COMPLETION_FILE
}

function configure_dns {
    if grep -Fxq "configure_dns" $COMPLETION_FILE; then
        return
    fi
    echo 'domain localdomain' > /etc/resolv.conf
    echo 'search localdomain' >> /etc/resolv.conf
    echo "nameserver $NAMESERVER1" >> /etc/resolv.conf
    echo "nameserver $NAMESERVER2" >> /etc/resolv.conf
    echo 'configure_dns' >> $COMPLETION_FILE
}

function set_hostname {
    DEFAULT_DOMAIN_NAME="$1"

    echo "$DEFAULT_DOMAIN_NAME" > /etc/hostname
    hostname $DEFAULT_DOMAIN_NAME

    if grep -q "127.0.1.1" /etc/hosts; then
        sed -i "s/127.0.1.1.*/127.0.1.1       $DEFAULT_DOMAIN_NAME/g" /etc/hosts
    else
        echo "127.0.1.1  $DEFAULT_DOMAIN_NAME" >> /etc/hosts
    fi
}

function set_your_domain_name {
    if grep -Fxq "set_your_domain_name" $COMPLETION_FILE; then
        return
    fi

    set_hostname $DEFAULT_DOMAIN_NAME

    echo 'set_your_domain_name' >> $COMPLETION_FILE
}

function time_synchronisation {
    # mesh peers typically don't sync over the internet
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    if [ -f /usr/local/bin/${PROJECT_NAME}-update-date ]; then
        cp /usr/local/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
    else
        cp /usr/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
    fi
    chmod +x /usr/bin/updatedate

    if grep -Fxq "time_synchronisation" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install tlsdate
    apt-get -y remove ntpdate

    echo '*/15           * *   *   *   root /usr/bin/updatedate' >> /etc/crontab
    systemctl restart cron

    echo 'time_synchronisation' >> $COMPLETION_FILE
}

function configure_firewall {
    if grep -Fxq "configure_firewall" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    iptables -P INPUT ACCEPT
    ip6tables -P INPUT ACCEPT
    iptables -F
    ip6tables -F
    iptables -t nat -F
    ip6tables -t nat -F
    iptables -X
    ip6tables -X
    iptables -P INPUT DROP
    ip6tables -P INPUT DROP
    iptables -A INPUT -i lo -j ACCEPT
    iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

    # Make sure incoming tcp connections are SYN packets
    iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP

    # Drop packets with incoming fragments
    iptables -A INPUT -f -j DROP

    # Drop bogons
    iptables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
    iptables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP
    iptables -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP

    # Incoming malformed NULL packets:
    iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP

    echo 'configure_firewall' >> $COMPLETION_FILE
}

function configure_firewall_ping {
    if grep -Fxq "configure_firewall_ping" $COMPLETION_FILE; then
        return
    fi
    # Only allow ping for mesh installs
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi
    iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
    iptables -A OUTPUT -p icmp --icmp-type echo-reply -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_ping' >> $COMPLETION_FILE
}

function configure_firewall_for_voip {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_voip" $COMPLETION_FILE; then
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p udp --dport $VOIP_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $VOIP_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_voip' >> $COMPLETION_FILE
}

function configure_firewall_for_voip_turn {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_voip_turn" $COMPLETION_FILE; then
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p udp --dport $VOIP_TURN_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $VOIP_TURN_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $VOIP_TURN_TLS_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_voip_turn' >> $COMPLETION_FILE
}


function configure_firewall_for_sip4 {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_sip4" $COMPLETION_FILE; then
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p udp --dport $SIP_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $SIP_PORT -j ACCEPT
    iptables -A INPUT -p udp --dport $SIP_TLS_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $SIP_TLS_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_sip4' >> $COMPLETION_FILE
}

function configure_firewall_for_ipfs {
    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" ]]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_ipfs" $COMPLETION_FILE; then
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_ipfs' >> $COMPLETION_FILE
}

function configure_firewall_for_avahi {
    if grep -Fxq "configure_firewall_for_avahi" $COMPLETION_FILE; then
        return
    fi
    iptables -A INPUT -p tcp --dport 548 -j ACCEPT
    iptables -A INPUT -p udp --dport 548 -j ACCEPT
    iptables -A INPUT -p tcp --dport 5353 -j ACCEPT
    iptables -A INPUT -p udp --dport 5353 -j ACCEPT
    iptables -A INPUT -p tcp --dport 5354 -j ACCEPT
    iptables -A INPUT -p udp --dport 5354 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_avahi' >> $COMPLETION_FILE
}

function configure_firewall_for_cjdns {
    if grep -Fxq "configure_firewall_for_cjdns" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_CJDNS != "yes" ]]; then
        return
    fi
    ip6tables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
    ip6tables -A FORWARD -i tun0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_cjdns' >> $COMPLETION_FILE
}

function configure_firewall_for_batman {
    if grep -Fxq "configure_firewall_for_batman" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_BATMAN != "yes" ]]; then
        return
    fi

    save_firewall_settings
    echo 'configure_firewall_for_batman' >> $COMPLETION_FILE
}

function configure_firewall_for_babel {
    if grep -Fxq "configure_firewall_for_babel" $COMPLETION_FILE; then
        return
    fi
    if [[ $ENABLE_BABEL != "yes" ]]; then
        return
    fi
    iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $BABEL_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_babel' >> $COMPLETION_FILE
}

function configure_firewall_for_zeronet {
    if grep -Fxq "configure_firewall_for_zeronet" $COMPLETION_FILE; then
        return
    fi
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi
    iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $ZERONET_PORT -j ACCEPT
    iptables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $ZERONET_PORT -j ACCEPT
    iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $TRACKER_PORT -j ACCEPT
    iptables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $TRACKER_PORT -j ACCEPT
    iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport 1900 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_zeronet' >> $COMPLETION_FILE
}

function configure_firewall_for_dlna {
    if grep -Fxq "configure_firewall_for_dlna" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" ]]; then
        return
    fi
    iptables -A INPUT -p udp --dport 1900 -j ACCEPT
    iptables -A INPUT -p tcp --dport 8200 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_dlna' >> $COMPLETION_FILE
}

function configure_firewall_for_dns {
    if grep -Fxq "configure_firewall_for_dns" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    iptables -A INPUT -p udp -m udp --dport 1024:65535 --sport 53 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_dns' >> $COMPLETION_FILE
}

function configure_firewall_for_xmpp {
    if [ ! -d /etc/prosody ]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_xmpp" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport 5222:5223 -j ACCEPT
    iptables -A INPUT -p tcp --dport 5269 -j ACCEPT
    iptables -A INPUT -p tcp --dport 5280:5281 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_xmpp' >> $COMPLETION_FILE
}

function configure_firewall_for_irc {
    if [ ! -d /etc/ngircd ]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_irc" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport $IRC_PORT  -j ACCEPT
    iptables -I INPUT -p tcp --dport 1024:65535 --sport $IRC_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_irc' >> $COMPLETION_FILE
}

function configure_firewall_for_ftp {
    if grep -Fxq "configure_firewall_for_ftp" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -I INPUT -p tcp --dport 1024:65535 --sport 20:21 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_ftp' >> $COMPLETION_FILE
}

function configure_firewall_for_web_access {
    if grep -Fxq "configure_firewall_for_web_access" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport 32768:61000 --sport 80 -j ACCEPT
    iptables -A INPUT -p tcp --dport 32768:61000 --sport 443 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_web_access' >> $COMPLETION_FILE
}

function configure_firewall_for_web_server {
    if grep -Fxq "configure_firewall_for_web_server" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport 80 -j ACCEPT
    iptables -A INPUT -p tcp --dport 443 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_web_server' >> $COMPLETION_FILE
}

function configure_firewall_for_tox {
    if grep -Fxq "configure_firewall_for_tox" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_tox' >> $COMPLETION_FILE
}

function configure_firewall_for_ssh {
    if grep -Fxq "configure_firewall_for_ssh" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    iptables -A INPUT -p tcp --dport 22 -j ACCEPT
    iptables -A INPUT -p tcp --dport $SSH_PORT -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_ssh' >> $COMPLETION_FILE
}

function configure_firewall_for_git {
    if grep -Fxq "configure_firewall_for_git" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport 9418 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_git' >> $COMPLETION_FILE
}

function configure_firewall_for_email {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" ]]; then
        return
    fi
    if grep -Fxq "configure_firewall_for_email" $COMPLETION_FILE; then
        return
    fi
    if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
        # docker does its own firewalling
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    iptables -A INPUT -p tcp --dport 25 -j ACCEPT
    iptables -A INPUT -p tcp --dport 587 -j ACCEPT
    iptables -A INPUT -p tcp --dport 465 -j ACCEPT
    iptables -A INPUT -p tcp --dport 993 -j ACCEPT
    save_firewall_settings
    echo 'configure_firewall_for_email' >> $COMPLETION_FILE
}

function configure_internet_protocol {
    if grep -Fxq "configure_internet_protocol" $COMPLETION_FILE; then
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    sed -i "s/#net.ipv4.tcp_syncookies=1/net.ipv4.tcp_syncookies=1/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.conf.all.accept_redirects = 0/net.ipv4.conf.all.accept_redirects = 0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv6.conf.all.accept_redirects = 0/net.ipv6.conf.all.accept_redirects = 0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.conf.all.send_redirects = 0/net.ipv4.conf.all.send_redirects = 0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.conf.all.accept_source_route = 0/net.ipv4.conf.all.accept_source_route = 0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv6.conf.all.accept_source_route = 0/net.ipv6.conf.all.accept_source_route = 0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.conf.default.rp_filter=1/net.ipv4.conf.default.rp_filter=1/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.conf.all.rp_filter=1/net.ipv4.conf.all.rp_filter=1/g" /etc/sysctl.conf
    sed -i "s/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=0/g" /etc/sysctl.conf
    sed -i "s/#net.ipv6.conf.all.forwarding=1/net.ipv6.conf.all.forwarding=0/g" /etc/sysctl.conf
    if ! grep -q "ignore pings" /etc/sysctl.conf; then
        echo '# ignore pings' >> /etc/sysctl.conf
        echo 'net.ipv4.icmp_echo_ignore_all = 1' >> /etc/sysctl.conf
        echo 'net.ipv6.icmp_echo_ignore_all = 1' >> /etc/sysctl.conf
    fi
    if ! grep -q "disable ipv6" /etc/sysctl.conf; then
        echo '# disable ipv6' >> /etc/sysctl.conf
        echo 'net.ipv6.conf.all.disable_ipv6 = 1' >> /etc/sysctl.conf
    fi
    if ! grep -q "net.ipv4.tcp_synack_retries" /etc/sysctl.conf; then
        echo 'net.ipv4.tcp_synack_retries = 2' >> /etc/sysctl.conf
        echo 'net.ipv4.tcp_syn_retries = 1' >> /etc/sysctl.conf
    fi
    if ! grep -q "keepalive" /etc/sysctl.conf; then
        echo '# keepalive' >> /etc/sysctl.conf
        echo 'net.ipv4.tcp_keepalive_probes = 9' >> /etc/sysctl.conf
        echo 'net.ipv4.tcp_keepalive_intvl = 75' >> /etc/sysctl.conf
        echo 'net.ipv4.tcp_keepalive_time = 7200' >> /etc/sysctl.conf
    fi
    echo 'configure_internet_protocol' >> $COMPLETION_FILE
}

function install_command_line_browser {
    if grep -Fxq "install_command_line_browser" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install elinks

    # set the home page
    if ! grep -q "WWW_HOME" /home/$MY_USERNAME/.bashrc; then
        if ! grep -q 'control' /home/$MY_USERNAME/.bashrc; then
            echo "export WWW_HOME=$DEFAULT_SEARCH" >> /home/$MY_USERNAME/.bashrc
        else
            sed -i "/control/i export WWW_HOME=$DEFAULT_SEARCH" /home/$MY_USERNAME/.bashrc
        fi
    fi

    echo 'install_command_line_browser' >> $COMPLETION_FILE
}


function configure_email {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "configure_email" $COMPLETION_FILE; then
        return
    fi
    apt-get -y remove postfix
    apt-get -y install exim4 sasl2-bin swaks libnet-ssleay-perl procmail xinetd

    if [ ! -d /etc/exim4 ]; then
        echo $"ERROR: Exim does not appear to have installed. $CHECK_MESSAGE"
        exit 48
    fi

    onion_service_name='email'
    if [ ! -d /var/lib/tor ]; then
        echo $"No Tor installation found. ${onion_service_name} onion site cannot be configured."
        exit 877367
    fi
    if ! grep -q "hidden_service_${onion_service_name}" /etc/tor/torrc; then
        echo "HiddenServiceDir /var/lib/tor/hidden_service_${onion_service_name}/" >> /etc/tor/torrc
        echo 'HiddenServicePort 25 127.0.0.1:25' >> /etc/tor/torrc
        echo 'HiddenServicePort 587 127.0.0.1:587' >> /etc/tor/torrc
        echo 'HiddenServicePort 465 127.0.0.1:465' >> /etc/tor/torrc
        echo 'HiddenServicePort 993 127.0.0.1:993' >> /etc/tor/torrc
        echo $"Added onion site for ${onion_service_name}"
    fi

    systemctl restart tor
    wait_for_onion_service ${onion_service_name}

    if [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; then
        echo $"${onion_service_name} onion site hostname not found"
        exit 76362
    fi
    EMAIL_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_${onion_service_name}/hostname)

    if [[ $ONION_ONLY != "no" ]]; then
        set_hostname ${EMAIL_ONION_HOSTNAME}
        MY_EMAIL_ADDRESS=${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}
    fi
    if ! grep -q "Email onion domain" $COMPLETION_FILE; then
        echo "Email onion domain:${EMAIL_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|Email onion domain.*|Email onion domain:${EMAIL_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi

    # see https://github.com/petterreinholdtsen/exim4-smtorp
    echo '# tor stuff first' > /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '#' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# if were submitting mail *from* a .tor/.onion address,' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# make sure any header lines that may give us away is' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# stripped out, and add a new, cryptic Message-ID.' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# In address_data we store the name we should HELO as.' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo 'tor_to_any:' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        debug_print     = "R: manualroute from .onion to $local_part@$domain"' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        driver          = manualroute' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        domains         = ! +local_domains' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        condition       = ${if match {$sender_address_domain}{\N.*\.(onion|tor)$\N}}' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        address_data    = $sender_address_domain' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        transport       = remote_smtp_onion' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        self            = send' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        route_list      = * localhost' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        headers_remove  = Received:Message-ID:X-Mailer:User-Agent' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        headers_add     = Message-ID: <${lc:${sha1:$message_id}}@$sender_address_domain>' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# this catches the case where were submitting mail' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# from a regular email address where we dont need to' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '# rewrite any headers' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo 'any_to_tor:' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        debug_print     = "R: manualroute for $local_part@$domain"' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        driver          = manualroute' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        domains         = ! +local_domains' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        transport       = remote_smtp_onion' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        self            = send' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        route_list      = *.onion localhost ; *.tor localhost' >> /etc/exim4/conf.d/router/100_exim4-smtorp
    echo '        address_data    = $smtp_active_hostname' >> /etc/exim4/conf.d/router/100_exim4-smtorp

    echo 'remote_smtp_onion:' > /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        debug_print = "T: remote_smtp_onion for $local_part@$original_domain"' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        driver = smtp' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        # set helo_data to where we want to connect to,' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        # for the proxy program tor-smtp' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        helo_data = "$address_data $original_domain"' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        # wherever we configured our script at' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        port = 12668' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        # cannot use TLS otherwise it will EHLO again!!' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
    echo '        hosts_avoid_tls = *' >> /etc/exim4/conf.d/transport/100_exim4-smtorp

    if [ ! -d $INSTALL_DIR ]; then
        mkdir -p $INSTALL_DIR
    fi
    cd $INSTALL_DIR
    git_clone $EXIM_ONION_REPO $INSTALL_DIR/exim4-smtorp
    cd $INSTALL_DIR/exim4-smtorp/tor-smtp
    make
    if [ ! -f $INSTALL_DIR/exim4-smtorp/tor-smtp/tor-smtp ]; then
        echo $'Unable to make tor smtp transport'
        exit 52629
    fi
    if [ ! -d /usr/lib/exim4-smtorp ]; then
        mkdir /usr/lib/exim4-smtorp
    fi
    cp $INSTALL_DIR/exim4-smtorp/tor-smtp/tor-smtp /usr/lib/exim4-smtorp/tor-smtp
    if [ ! -f /usr/lib/exim4-smtorp/tor-smtp ]; then
        echo $'Unable to copy tor-smtp'
        exit 83503
    fi
    cp $INSTALL_DIR/exim4-smtorp/xinetd /etc/xinetd.d/tor-smtp
    if [ ! -f /etc/xinetd.d/tor-smtp ]; then
        echo $'Unable to copy to xinetd.d'
        exit 835954
    fi
    systemctl restart xinetd

    # configure for Maildir format
    sed -i 's/MAIL_DIR/#MAIL_DIR/g' /etc/login.defs
    sed -i 's|#MAIL_FILE.*|MAIL_FILE Maildir/|g' /etc/login.defs

    if ! grep -q "export MAIL" /etc/profile; then
        echo 'export MAIL=~/Maildir' >> /etc/profile
    fi

    sed -i 's|pam_mail.so standard|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/login
    sed -i 's|pam_mail.so standard noenv|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/sshd
    sed -i 's|pam_mail.so nopen|pam_mail.so dir=~/Maildir nopen|g' /etc/pam.d/su

    echo 'dc_eximconfig_configtype="internet"' > /etc/exim4/update-exim4.conf.conf
    if [[ $ONION_ONLY == "no" ]]; then
        # both ICANN and onion domains
        echo "dc_other_hostnames='${DEFAULT_DOMAIN_NAME};${EMAIL_ONION_HOSTNAME}'" >> /etc/exim4/update-exim4.conf.conf
    else
        echo "dc_other_hostnames='${EMAIL_ONION_HOSTNAME}'" >> /etc/exim4/update-exim4.conf.conf
    fi
    echo "dc_local_interfaces=''" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_readhost=''" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_relay_domains=''" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_minimaldns='false'" >> /etc/exim4/update-exim4.conf.conf
    RELAY_NETS='192.168.1.0/24'
    if [ $LOCAL_NETWORK_STATIC_IP_ADDRESS ]; then
        RELAY_NETS=$(echo $LOCAL_NETWORK_STATIC_IP_ADDRESS | awk -F '.' '{print $1 "." $2 "." $3 ".0/24"}')
    fi
    echo "dc_relay_nets='$RELAY_NETS'" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_smarthost=''" >> /etc/exim4/update-exim4.conf.conf
    echo "CFILEMODE='644'" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_use_split_config='false'" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_hide_mailname=''" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_mailname_in_oh='true'" >> /etc/exim4/update-exim4.conf.conf
    echo "dc_localdelivery='maildir_home'" >> /etc/exim4/update-exim4.conf.conf
    update-exim4.conf
    sed -i "s/START=no/START=yes/g" /etc/default/saslauthd
    systemctl start saslauthd

    # make a tls certificate for email
    if [ ! -f /etc/ssl/certs/exim.dhparam ]; then
        ${PROJECT_NAME}-addcert -h exim --dhkey $DH_KEYLENGTH
        check_certificates exim
    fi
    cp /etc/ssl/private/exim.key /etc/exim4
    cp /etc/ssl/certs/exim.crt /etc/exim4
    cp /etc/ssl/certs/exim.dhparam /etc/exim4
    chown root:Debian-exim /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
    chmod 640 /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam

    sed -i '/login_saslauthd_server/,/.endif/ s/# *//' /etc/exim4/exim4.conf.template
    sed -i "/.ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME/i\MAIN_HARDCODE_PRIMARY_HOSTNAME = $DEFAULT_DOMAIN_NAME\nMAIN_TLS_ENABLE = true" /etc/exim4/exim4.conf.template
    sed -i "s|SMTPLISTENEROPTIONS=''|SMTPLISTENEROPTIONS='-oX 465:25:587 -oP /var/run/exim4/exim.pid'|g" /etc/default/exim4
    if ! grep -q "tls_on_connect_ports=465" /etc/exim4/exim4.conf.template; then
        sed -i '/SSL configuration for exim/i\tls_on_connect_ports=465' /etc/exim4/exim4.conf.template
    fi

    adduser $MY_USERNAME sasl
    addgroup Debian-exim sasl
    systemctl restart exim4
    if [ ! -d /etc/skel/Maildir ]; then
        mkdir -m 700 /etc/skel/.mutt
        mkdir -m 700 /etc/skel/Maildir
        mkdir -m 700 /etc/skel/Maildir/new
        mkdir -m 700 /etc/skel/Maildir/cur
        mkdir -m 700 /etc/skel/Maildir/Sent
        mkdir -m 700 /etc/skel/Maildir/Sent/tmp
        mkdir -m 700 /etc/skel/Maildir/Sent/cur
        mkdir -m 700 /etc/skel/Maildir/Sent/new
        mkdir -m 700 /etc/skel/Maildir/.learn-spam
        mkdir -m 700 /etc/skel/Maildir/.learn-spam/cur
        mkdir -m 700 /etc/skel/Maildir/.learn-spam/new
        mkdir -m 700 /etc/skel/Maildir/.learn-spam/tmp
        mkdir -m 700 /etc/skel/Maildir/.learn-ham
        mkdir -m 700 /etc/skel/Maildir/.learn-ham/cur
        mkdir -m 700 /etc/skel/Maildir/.learn-ham/new
        mkdir -m 700 /etc/skel/Maildir/.learn-ham/tmp
        ln -s /etc/skel/Maildir/.learn-spam /etc/skel/Maildir/spam
        ln -s /etc/skel/Maildir/.learn-ham /etc/skel/Maildir/ham
    fi

    if [ ! -d /home/$MY_USERNAME/Maildir ]; then
        mkdir -m 700 /home/$MY_USERNAME/.mutt
        mkdir -m 700 /home/$MY_USERNAME/Maildir
        mkdir -m 700 /home/$MY_USERNAME/Maildir/cur
        mkdir -m 700 /home/$MY_USERNAME/Maildir/tmp
        mkdir -m 700 /home/$MY_USERNAME/Maildir/new
        mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent
        mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/cur
        mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/tmp
        mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/new
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/cur
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/new
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/tmp
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/cur
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/new
        mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/tmp
        ln -s /home/$MY_USERNAME/Maildir/.learn-spam /home/$MY_USERNAME/Maildir/spam
        ln -s /home/$MY_USERNAME/Maildir/.learn-ham /home/$MY_USERNAME/Maildir/ham
        chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir
    fi
    echo 'configure_email' >> $COMPLETION_FILE
}

function create_procmail {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "create_procmail" $COMPLETION_FILE; then
        return
    fi
    if [ ! -f /home/$MY_USERNAME/.procmailrc ]; then
        echo 'MAILDIR=$HOME/Maildir' > /home/$MY_USERNAME/.procmailrc
        echo 'DEFAULT=$MAILDIR/' >> /home/$MY_USERNAME/.procmailrc
        echo 'LOGFILE=$HOME/log/procmail.log' >> /home/$MY_USERNAME/.procmailrc
        echo 'LOGABSTRACT=all' >> /home/$MY_USERNAME/.procmailrc
        echo '' >> /home/$MY_USERNAME/.procmailrc
        echo $"# Tripwire reports which have no violations don't need to be logged" >> /home/$MY_USERNAME/.procmailrc
        echo ':0 BD:' >> /home/$MY_USERNAME/.procmailrc
        TRIPWIRE_VIOLATIONS_STR=$'Total violations found:  0'
        echo "  * .*$TRIPWIRE_VIOLATIONS_STR" >> /home/$MY_USERNAME/.procmailrc
        echo '/dev/null' >> /home/$MY_USERNAME/.procmailrc
        echo '' >> /home/$MY_USERNAME/.procmailrc
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
    fi

    mkdir -p /home/$MY_USERNAME/Maildir/admin/new
    mkdir -p /home/$MY_USERNAME/Maildir/admin/cur
    chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir/admin

    if [ ! -f /etc/skel/.procmailrc ]; then
        cp /home/$MY_USERNAME/.procmailrc /etc/skel/.procmailrc
        chown root:root /etc/skel/.procmailrc
    fi

    echo 'create_procmail' >> $COMPLETION_FILE
}

function handle_admin_emails {
    # keep emails for root in a separate folder
    if [ -d /home/$MY_USERNAME/Maildir/admin ]; then
        return
    fi

    freedombone-addemail -u $MY_USERNAME -e "root@$DEFAULT_DOMAIN_NAME" -g admin --public no
}

function spam_filtering {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "spam_filtering" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install exim4-daemon-heavy
    apt-get -y install spamassassin
    if [ ! -f /etc/default/spamassassin ]; then
        echo 'Spamassassin was not installed'
        exit 72570
    fi
    sa-update -v
    sed -i 's/ENABLED=0/ENABLED=1/g' /etc/default/spamassassin
    sed -i 's/# spamd_address = 127.0.0.1 783/spamd_address = 127.0.0.1 783/g' /etc/exim4/exim4.conf.template
    # This configuration is based on https://wiki.debian.org/DebianSpamAssassin
    sed -i 's/local_parts = postmaster/local_parts = postmaster:abuse/g' /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
    sed -i '/domains = +local_domains : +relay_to_domains/a\    set acl_m0 = rfcnames' /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
    sed -i 's/accept/accept condition = ${if eq{$acl_m0}{rfcnames} {1}{0}}/g' /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo 'warn  message = X-Spam-Score: $spam_score ($spam_bar)' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '      spam = nobody:true' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo 'warn  message = X-Spam-Flag: YES' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '      spam = nobody' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo 'warn  message = X-Spam-Report: $spam_report' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '      spam = nobody' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '# reject spam at high scores (> 12)' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo 'deny  message = This message scored $spam_score spam points.' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '      spam = nobody:true' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    echo '      condition = ${if >{$spam_score_int}{120}{1}{0}}' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
    # procmail configuration
    echo '# get spamassassin to check emails' >> /home/$MY_USERNAME/.procmailrc
    echo ':0fw: .spamassassin.lock' >> /home/$MY_USERNAME/.procmailrc
    echo '  * < 256000' >> /home/$MY_USERNAME/.procmailrc
    echo '| spamc' >> /home/$MY_USERNAME/.procmailrc
    echo '# strong spam are discarded' >> /home/$MY_USERNAME/.procmailrc
    echo ':0' >> /home/$MY_USERNAME/.procmailrc
    echo '  * ^X-Spam-Level: \*\*\*\*\*\*' >> /home/$MY_USERNAME/.procmailrc
    echo '/dev/null' >> /home/$MY_USERNAME/.procmailrc
    echo '# weak spam are kept just in case - clear this out every now and then' >> /home/$MY_USERNAME/.procmailrc
    echo ':0' >> /home/$MY_USERNAME/.procmailrc
    echo '  * ^X-Spam-Level: \*\*\*\*\*' >> /home/$MY_USERNAME/.procmailrc
    echo 'maybe-spam/' >> /home/$MY_USERNAME/.procmailrc
    echo '# otherwise, marginal spam goes here for revision' >> /home/$MY_USERNAME/.procmailrc
    echo ':0' >> /home/$MY_USERNAME/.procmailrc
    echo '  * ^X-Spam-Level: \*\*' >> /home/$MY_USERNAME/.procmailrc
    echo 'spam/' >> /home/$MY_USERNAME/.procmailrc
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
    echo '# get spamassassin to check emails' >> /etc/skel/.procmailrc
    echo ':0fw: .spamassassin.lock' >> /etc/skel/.procmailrc
    echo '  * < 256000' >> /etc/skel/.procmailrc
    echo '| spamc' >> /etc/skel/.procmailrc
    echo '# strong spam are discarded' >> /etc/skel/.procmailrc
    echo ':0' >> /etc/skel/.procmailrc
    echo '  * ^X-Spam-Level: \*\*\*\*\*\*' >> /etc/skel/.procmailrc
    echo '/dev/null' >> /etc/skel/.procmailrc
    echo '# weak spam are kept just in case - clear this out every now and then' >> /etc/skel/.procmailrc
    echo ':0' >> /etc/skel/.procmailrc
    echo '  * ^X-Spam-Level: \*\*\*\*\*' >> /etc/skel/.procmailrc
    echo 'maybe-spam/' >> /etc/skel/.procmailrc
    echo '# otherwise, marginal spam goes here for revision' >> /etc/skel/.procmailrc
    echo ':0' >> /etc/skel/.procmailrc
    echo '  * ^X-Spam-Level: \*\*' >> /etc/skel/.procmailrc
    echo 'spam/' >> /etc/skel/.procmailrc
    # filtering scripts
    echo '#!/bin/bash' > /usr/bin/filterspam
    echo 'for d in /home/*/ ; do' >> /usr/bin/filterspam
    echo '    USERNAME=$(echo "$d" | awk -F '"'"'/'"'"' '"'"'{print $3}'"'"')' >> /usr/bin/filterspam
    echo '    if [[ $USERNAME != "git" && $USERNAME != "mirrors" && $USERNAME != "sync" ]]; then' >> /usr/bin/filterspam
    echo '        MAILDIR=/home/$USERNAME/Maildir/.learn-spam' >> /usr/bin/filterspam
    echo '        if [ ! -d "$MAILDIR" ]; then' >> /usr/bin/filterspam
    echo '           exit' >> /usr/bin/filterspam
    echo '        fi' >> /usr/bin/filterspam
    echo '        for f in `ls $MAILDIR/cur`' >> /usr/bin/filterspam
    echo '        do' >> /usr/bin/filterspam
    echo '            spamc -L spam < "$MAILDIR/cur/$f" > /dev/null' >> /usr/bin/filterspam
    echo '            rm "$MAILDIR/cur/$f"' >> /usr/bin/filterspam
    echo '        done' >> /usr/bin/filterspam
    echo '        for f in `ls $MAILDIR/new`' >> /usr/bin/filterspam
    echo '        do' >> /usr/bin/filterspam
    echo '            spamc -L spam < "$MAILDIR/new/$f" > /dev/null' >> /usr/bin/filterspam
    echo '            rm "$MAILDIR/new/$f"' >> /usr/bin/filterspam
    echo '        done' >> /usr/bin/filterspam
    echo '    fi' >> /usr/bin/filterspam
    echo 'done' >> /usr/bin/filterspam
    echo 'exit 0' >> /usr/bin/filterspam

    echo '#!/bin/bash' > /usr/bin/filterham
    echo 'for d in /home/*/ ; do' >> /usr/bin/filterham
    echo '    USERNAME=$(echo "$d" | awk -F '"'"'/'"'"' '"'"'{print $3}'"'"')' >> /usr/bin/filterham
    echo '    if [[ $USERNAME != "git" && $USERNAME != "mirrors" && $USERNAME != "sync" ]]; then' >> /usr/bin/filterham
    echo '        MAILDIR=/home/$USERNAME/Maildir/.learn-ham' >> /usr/bin/filterham
    echo '        if [ ! -d "$MAILDIR" ]; then' >> /usr/bin/filterham
    echo '            exit' >> /usr/bin/filterham
    echo '        fi' >> /usr/bin/filterham
    echo '        for f in `ls $MAILDIR/cur`' >> /usr/bin/filterham
    echo '        do' >> /usr/bin/filterham
    echo '            spamc -L ham < "$MAILDIR/cur/$f" > /dev/null' >> /usr/bin/filterham
    echo '            rm "$MAILDIR/cur/$f"' >> /usr/bin/filterham
    echo '        done' >> /usr/bin/filterham
    echo '        for f in `ls $MAILDIR/new`' >> /usr/bin/filterham
    echo '        do' >> /usr/bin/filterham
    echo '            spamc -L ham < "$MAILDIR/new/$f" > /dev/null' >> /usr/bin/filterham
    echo '            rm "$MAILDIR/new/$f"' >> /usr/bin/filterham
    echo '        done' >> /usr/bin/filterham
    echo '    fi' >> /usr/bin/filterham
    echo 'done' >> /usr/bin/filterham
    echo 'exit 0' >> /usr/bin/filterham

    if ! grep -q "filterspam" /etc/crontab; then
        echo "*/3 * * * * root /usr/bin/timeout 120 /usr/bin/filterspam" >> /etc/crontab
    fi
    if ! grep -q "filterham" /etc/crontab; then
        echo "*/3 * * * * root /usr/bin/timeout 120 /usr/bin/filterham" >> /etc/crontab
    fi
    chmod 655 /usr/bin/filterspam /usr/bin/filterham
    sed -i 's/# use_bayes 1/use_bayes 1/g' /etc/mail/spamassassin/local.cf
    sed -i 's/# bayes_auto_learn 1/bayes_auto_learn 1/g' /etc/mail/spamassassin/local.cf

    # user preferences
    if [ ! -d /home/$MY_USERNAME/.spamassassin ]; then
        mkdir /home/$MY_USERNAME/.spamassassin
        echo $'# How many points before a mail is considered spam.' > /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# required_score        5' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# Whitelist and blacklist addresses are now file-glob-style patterns, so' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# "friend@somewhere.com", "*@isp.com", or "*.domain.net" will all work.' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# whitelist_from    someone@somewhere.com' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# Add your own customised scores for some tests below.  The default scores are' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# read from the installed spamassassin rules files, but you can override them' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# here.  To see the list of tests and their default scores, go to' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# http://spamassassin.apache.org/tests.html .' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '#' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score SYMBOLIC_TEST_NAME n.nn' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# Speakers of Asian languages, like Chinese, Japanese and Korean, will almost' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# definitely want to uncomment the following lines.  They will switch off some' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# rules that detect 8-bit characters, which commonly trigger on mails using CJK' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# character sets, or that assume a western-style charset is in use. ' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# ' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score HTML_COMMENT_8BITS  0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score UPPERCASE_25_50     0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score UPPERCASE_50_75     0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score UPPERCASE_75_100    0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score OBSCURED_EMAIL      0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# Speakers of any language that uses non-English, accented characters may wish' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# to uncomment the following lines.   They turn off rules that fire on' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# misformatted messages generated by common mail apps in contravention of the' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo $'# email RFCs.' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
        echo '# score SUBJ_ILLEGAL_CHARS      0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
    fi
    # this must be accessible by root
    chown -R $MY_USERNAME:root /home/$MY_USERNAME/.spamassassin

    systemctl restart spamassassin
    systemctl restart exim4
    systemctl restart cron

    echo 'spam_filtering' >> $COMPLETION_FILE
}

function configure_imap {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "configure_imap" $COMPLETION_FILE; then
        return
    fi

    dpkg -P dovecot-imapd
    dpkg -P dovecot-core
    apt-get -y install dovecot-imapd

    if [ ! -d /etc/dovecot ]; then
        echo $"ERROR: Dovecot does not appear to have installed. $CHECK_MESSAGE"
        exit 48
    fi

    if [ ! -f /etc/ssl/certs/dovecot.dhparam ]; then
        ${PROJECT_NAME}-addcert -h dovecot --dhkey $DH_KEYLENGTH
        check_certificates dovecot
    fi
    chown root:dovecot /etc/ssl/certs/dovecot.*
    chown root:dovecot /etc/ssl/private/dovecot.*

    if [ ! -f /etc/dovecot/conf.d/10-ssl.conf ]; then
        echo $'Unable to find /etc/dovecot/conf.d/10-ssl.conf'
        exit 83629
    fi
    sed -i 's|#ssl =.*|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|ssl = no|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|ssl = yes|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|#ssl_cert =.*|ssl_cert = </etc/ssl/certs/dovecot.crt|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|ssl_cert =.*|ssl_cert = </etc/ssl/certs/dovecot.crt|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|#ssl_key =.*|ssl_key = </etc/ssl/private/dovecot.key|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|ssl_key =.*|ssl_key = </etc/ssl/private/dovecot.key|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|#ssl_dh_parameters_length.*|ssl_dh_parameters_length = 2048|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's/#ssl_prefer_server_ciphers.*/ssl_prefer_server_ciphers = yes/g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i "s|#ssl_protocols =.*|ssl_protocols = '$SSL_PROTOCOLS'|g" /etc/dovecot/conf.d/10-ssl.conf
    sed -i "s|ssl_protocols =.*|ssl_protocols = '$SSL_PROTOCOLS'|g" /etc/dovecot/conf.d/10-ssl.conf
    echo "ssl_cipher_list = '$SSL_CIPHERS'" >> /etc/dovecot/conf.d/10-ssl.conf

    if [ ! -f /etc/dovecot/conf.d/10-master.conf ]; then
        echo $'Unable to find /etc/dovecot/conf.d/10-master.conf'
        exit 49259
    fi
    sed -i 's/#process_limit =.*/process_limit = 100/g' /etc/dovecot/conf.d/10-master.conf
    sed -i 's/#default_client_limit.*/default_client_limit = 100/g' /etc/dovecot/conf.d/10-master.conf
    sed -i 's|#default_process_limit =.*|default_process_limit = 100|g' /etc/dovecot/conf.d/10-master.conf

    if [ ! -f /etc/dovecot/conf.d/10-logging.conf ]; then
        echo $'Unable to find /etc/dovecot/conf.d/10-logging.conf'
        exit 48936
    fi
    sed -i 's/#auth_verbose.*/auth_verbose = yes/g' /etc/dovecot/conf.d/10-logging.conf

    if [ ! -f /etc/dovecot/dovecot.conf ]; then
        echo $'Unable to find /etc/dovecot/dovecot.conf'
        exit 43890
    fi
    sed -i 's/#listen =.*/listen = */g' /etc/dovecot/dovecot.conf

    if [ ! -f /etc/dovecot/conf.d/10-auth.conf ]; then
        echo $'Unable to find /etc/dovecot/conf.d/10-auth.conf'
        exit 843256
    fi
    sed -i 's/#disable_plaintext_auth =.*/disable_plaintext_auth = no/g' /etc/dovecot/conf.d/10-auth.conf
    sed -i 's/auth_mechanisms =.*/auth_mechanisms = plain login/g' /etc/dovecot/conf.d/10-auth.conf

    if [ ! -f /etc/dovecot/conf.d/10-mail.conf ]; then
        echo $'Unable to find /etc/dovecot/conf.d/10-mail.conf'
        exit 42036
    fi
    sed -i 's|mail_location =.*|mail_location = maildir:~/Maildir:LAYOUT=fs|g' /etc/dovecot/conf.d/10-mail.conf

    # This long notify interval makes the system more suited for use with
    # battery powered mobile devices
    sed -i 's|#imap_idle_notify_interval =.*|imap_idle_notify_interval = 29|g' /etc/dovecot/conf.d/20-imap.conf

    if [ -f /var/lib/dovecot/ssl-parameters.dat ]; then
        rm /var/lib/dovecot/ssl-parameters.dat
    fi

    systemctl restart dovecot
    echo 'configure_imap' >> $COMPLETION_FILE
}

function configure_imap_client_certs {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "configure_imap_client_certs" $COMPLETION_FILE; then
        return
    fi
    # http://strange.systems/certificate-based-auth-with-dovecot-sendmail/
    sed -i 's|#default_process_limit =.*|default_process_limit = 100|g' /etc/dovecot/conf.d/10-master.conf
    sed -i 's/disable_plaintext_auth =.*/disable_plaintext_auth = yes/g' /etc/dovecot/conf.d/10-auth.conf
    sed -i 's|#auth_ssl_require_client_cert =.*|auth_ssl_require_client_cert = yes|g' /etc/dovecot/conf.d/10-auth.conf
    sed -i 's|#auth_ssl_username_from_cert =.*|auth_ssl_username_from_cert = yes|g' /etc/dovecot/conf.d/10-auth.conf
    sed -i "s|#ssl_ca =.*|ssl_ca = /etc/ssl/certs/ca-$DEFAULT_DOMAIN_NAME.crt|g" /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|#ssl_cert_username_field =.*|ssl_cert_username_field = commonName|g' /etc/dovecot/conf.d/10-ssl.conf
    sed -i 's|#ssl_verify_client_cert =.*|ssl_verify_client_cert = yes|g' /etc/dovecot/conf.d/10-ssl.conf
    if ! grep -q "passdb {" /etc/dovecot/conf.d/10-auth.conf; then
        echo '' >> /etc/dovecot/conf.d/10-auth.conf
        echo 'passdb {' >> /etc/dovecot/conf.d/10-auth.conf
        echo '  driver = passwd-file' >> /etc/dovecot/conf.d/10-auth.conf
        echo '  args = /etc/dovecot/passwd-file' >> /etc/dovecot/conf.d/10-auth.conf
        echo '  deny = no' >> /etc/dovecot/conf.d/10-auth.conf
        echo '  master = no' >> /etc/dovecot/conf.d/10-auth.conf
        echo '  pass = no' >> /etc/dovecot/conf.d/10-auth.conf
        echo '}' >> /etc/dovecot/conf.d/10-auth.conf
    fi
    if [[ $ONION_ONLY == "no" ]]; then
        # make a CA cert
        if [ ! -f /etc/ssl/private/ca-$DEFAULT_DOMAIN_NAME.key ]; then
            if [[ $LETSENCRYPT_ENABLED != "yes" ]]; then
                ${PROJECT_NAME}-addcert -h $DEFAULT_DOMAIN_NAME --ca "" --dhkey $DH_KEYLENGTH
            else
                ${PROJECT_NAME}-addcert -e $DEFAULT_DOMAIN_NAME -s $LETSENCRYPT_SERVER --ca "" --dhkey $DH_KEYLENGTH --email $MY_EMAIL_ADDRESS
            fi
        fi
    fi
    # CA configuration
    echo '[ ca ]' > /etc/ssl/dovecot-ca.cnf
    echo "default_ca = dovecot-ca" >> /etc/ssl/dovecot-ca.cnf
    echo '' >> /etc/ssl/dovecot-ca.cnf
    echo '[ crl_ext ]' >> /etc/ssl/dovecot-ca.cnf
    echo 'authorityKeyIdentifier=keyid:always' >> /etc/ssl/dovecot-ca.cnf
    echo '' >> /etc/ssl/dovecot-ca.cnf
    echo '[ dovecot-ca ]' >> /etc/ssl/dovecot-ca.cnf
    echo 'new_certs_dir = .' >> /etc/ssl/dovecot-ca.cnf
    echo 'unique_subject = no' >> /etc/ssl/dovecot-ca.cnf
    echo "certificate = /etc/ssl/certs/ca-$DEFAULT_DOMAIN_NAME.crt" >> /etc/ssl/dovecot-ca.cnf
    echo 'database = ssldb' >> /etc/ssl/dovecot-ca.cnf
    echo "private_key = /etc/ssl/private/ca-$DEFAULT_DOMAIN_NAME.key" >> /etc/ssl/dovecot-ca.cnf
    echo 'serial = sslserial' >> /etc/ssl/dovecot-ca.cnf
    echo 'default_days = 3650' >> /etc/ssl/dovecot-ca.cnf
    echo 'default_md = sha256' >> /etc/ssl/dovecot-ca.cnf
    echo 'default_bits = 4096' >> /etc/ssl/dovecot-ca.cnf
    echo 'policy = dovecot-ca_policy' >> /etc/ssl/dovecot-ca.cnf
    echo 'x509_extensions = dovecot-ca_extensions' >> /etc/ssl/dovecot-ca.cnf
    echo '' >> /etc/ssl/dovecot-ca.cnf
    echo '[ dovecot-ca_policy ]' >> /etc/ssl/dovecot-ca.cnf
    echo 'commonName = supplied' >> /etc/ssl/dovecot-ca.cnf
    echo 'stateOrProvinceName = supplied' >> /etc/ssl/dovecot-ca.cnf
    echo 'countryName = supplied' >> /etc/ssl/dovecot-ca.cnf
    echo 'emailAddress = optional' >> /etc/ssl/dovecot-ca.cnf
    echo 'organizationName = supplied' >> /etc/ssl/dovecot-ca.cnf
    echo 'organizationalUnitName = optional' >> /etc/ssl/dovecot-ca.cnf
    echo '' >> /etc/ssl/dovecot-ca.cnf
    echo '[ dovecot-ca_extensions ]' >> /etc/ssl/dovecot-ca.cnf
    echo 'basicConstraints = CA:false' >> /etc/ssl/dovecot-ca.cnf
    echo 'subjectKeyIdentifier = hash' >> /etc/ssl/dovecot-ca.cnf
    echo 'authorityKeyIdentifier = keyid:always' >> /etc/ssl/dovecot-ca.cnf
    echo 'keyUsage = digitalSignature,keyEncipherment' >> /etc/ssl/dovecot-ca.cnf
    echo 'extendedKeyUsage = clientAuth' >> /etc/ssl/dovecot-ca.cnf
    if [ -f /etc/ssl/ssldb ]; then
        rm /etc/ssl/ssldb
    fi
    if [ -f /etc/ssl/sslserial ]; then
        rm /etc/ssl/sslserial
    fi
    touch /etc/ssl/ssldb
    echo 0001 > /etc/ssl/sslserial
    #${PROJECT_NAME}-clientcert -u $MY_USERNAME
    systemctl restart dovecot
    echo 'configure_imap_client_certs' >> $COMPLETION_FILE
}

function create_gpg_subkey {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "create_gpg_subkey" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install gnupg

    GPG_KEY_USAGE=$1
    if [[ $GPG_KEY_USAGE != "sign" && $GPG_KEY_USAGE != "auth" && $GPG_KEY_USAGE != "encrypt" ]]; then
        echo $"Unknown subkey usage: $GPG_KEY_USAGE"
        echo $'Available types: sign|auth|encrypt'
        exit 14783
    fi

    KEYGRIP=$(gpg --fingerprint --fingerprint $MY_EMAIL_ADDRESS | grep fingerprint | tail -1 | cut -d= -f2 | sed -e 's/ //g')

    # Generate a GPG subkey
    # Here a 2048bit length is used to be compatible with yubikey
    echo 'Key-Type: 1' > /home/$MY_USERNAME/gpg-genkey.conf
    echo "Key-Grip: $KEYGRIP" > /home/$MY_USERNAME/gpg-genkey.conf
    echo 'Subkey-Type: 1' >> /home/$MY_USERNAME/gpg-genkey.conf
    echo 'Subkey-Length: 2048' >> /home/$MY_USERNAME/gpg-genkey.conf
    echo "subkey-Usage: $GPG_KEY_USAGE" > /home/$MY_USERNAME/gpg-genkey.conf
    echo "Name-Real:  $MY_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
    echo "Name-Email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/gpg-genkey.conf
    echo "Name-Comment: $GPG_KEY_USAGE" >> /home/$MY_USERNAME/gpg-genkey.conf
    echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
    su -c "gpg --batch --gen-key /home/$MY_USERNAME/gpg-genkey.conf" - $MY_USERNAME
    shred -zu /home/$MY_USERNAME/gpg-genkey.conf
    MY_GPG_SUBKEY_ID=$(su -c "gpg --list-keys $MY_EMAIL_ADDRESS | grep 'pub '" - $MY_USERNAME | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')

    echo 'create_gpg_subkey' >> $COMPLETION_FILE
}

function gpg_key_exists {
    key_owner_username=$1
    key_search_text=$2
    if [[ $key_owner_username != "root" ]]; then
        KEY_EXISTS=$(su -c "gpg --list-keys \"${key_search_text}\"" - $key_owner_username)
    else
        KEY_EXISTS=$(gpg --list-keys "${key_search_text}")
    fi
    if [ ! "$KEY_EXISTS" ]; then
        echo "no"
        return
    fi
    if [ "$KEY_EXISTS" == *"error"* ]; then
        echo "no"
        return
    fi
    echo "yes"
}

function gpg_pubkey_from_email {
    key_owner_username=$1
    key_email_address=$2
    key_id=
    if [[ $key_owner_username != "root" ]]; then
        key_id=$(su -c "gpg --list-keys $key_email_address | grep 'pub '" - $key_owner_username | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
    else
        key_id=$(gpg --list-keys $key_email_address | grep 'pub ' | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
    fi
    echo $key_id
}

function configure_gpg {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "configure_gpg" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install gnupg

    gpg_dir=/home/$MY_USERNAME/.gnupg

    # if gpg keys directory was previously imported from usb
    if [[ $GPG_KEYS_IMPORTED == "yes" && -d $gpg_dir ]]; then
        echo $'GPG keys were imported'
        sed -i "s|keyserver hkp://keys.gnupg.net|keyserver $GPG_KEYSERVER|g" $gpg_dir/gpg.conf
        MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
            echo $'GPG public key ID could not be obtained'
        fi
        chown -R $MY_USERNAME:$MY_USERNAME $gpg_dir
        chmod 700 $gpg_dir
        chmod 600 $gpg_dir/*
        echo 'configure_gpg' >> $COMPLETION_FILE
        return
    fi

    if [ ! -d $gpg_dir ]; then
        mkdir $gpg_dir
        echo "keyserver $GPG_KEYSERVER" >> $gpg_dir/gpg.conf
        echo 'keyserver-options auto-key-retrieve' >> $gpg_dir/gpg.conf
    fi

    sed -i "s|keyserver hkp://keys.gnupg.net|keyserver $GPG_KEYSERVER|g" $gpg_dir/gpg.conf

    if ! grep -q "# default preferences" $gpg_dir/gpg.conf; then
        echo '' >> $gpg_dir/gpg.conf
        echo '# default preferences' >> $gpg_dir/gpg.conf
        echo 'personal-digest-preferences SHA256' >> $gpg_dir/gpg.conf
        echo 'cert-digest-algo SHA256' >> $gpg_dir/gpg.conf
        echo 'default-preference-list SHA512 SHA384 SHA256 SHA224 AES256 AES192 AES CAST5 ZLIB BZIP2 ZIP Uncompressed' >> $gpg_dir/gpg.conf
    fi

    chown -R $MY_USERNAME:$MY_USERNAME $gpg_dir
    chmod 700 $gpg_dir
    chmod 600 $gpg_dir/*

    if [[ $MY_GPG_PUBLIC_KEY && $MY_GPG_PRIVATE_KEY ]]; then
        echo $'Importing GPG keys from file'
        echo $"Public key:  $MY_GPG_PUBLIC_KEY"
        echo $"Private key: $MY_GPG_PRIVATE_KEY"

        # use your existing GPG keys which were exported
        if [ ! -f $MY_GPG_PUBLIC_KEY ]; then
            echo $"GPG public key file $MY_GPG_PUBLIC_KEY was not found"
            exit 2483
        fi
        if [ ! -f $MY_GPG_PRIVATE_KEY ]; then
            echo $"GPG private key file $MY_GPG_PRIVATE_KEY was not found"
            exit 5383
        fi
        su -c "gpg --import $MY_GPG_PUBLIC_KEY" - $MY_USERNAME
        su -c "gpg --allow-secret-key-import --import $MY_GPG_PRIVATE_KEY" - $MY_USERNAME
        KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [[ $KEY_EXISTS == "no" ]]; then
            echo $"The GPG key for $MY_EMAIL_ADDRESS could not be imported"
            exit 13821
        fi

        # for security ensure that the private key file doesn't linger around
        shred -zu $MY_GPG_PRIVATE_KEY
        MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
            echo $'GPG public key ID could not be obtained'
        fi
    else
        # Generate a GPG key
        echo 'Key-Type: 1' > /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Key-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Subkey-Type: 1' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Subkey-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo "Name-Real:  $MY_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
        echo "Name-Email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
        echo $'Generating a new GPG key'
        su -c "gpg --batch --gen-key /home/$MY_USERNAME/gpg-genkey.conf" - $MY_USERNAME
        KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [[ $KEY_EXISTS == "no" ]]; then
            echo $"A GPG key for $MY_EMAIL_ADDRESS could not be created"
            exit 6362
        fi
        shred -zu /home/$MY_USERNAME/gpg-genkey.conf
        MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
            echo $'GPG public key ID could not be obtained'
        fi
        MY_GPG_PUBLIC_KEY=/tmp/public_key.gpg
        su -c "gpg --output $MY_GPG_PUBLIC_KEY --armor --export $MY_GPG_PUBLIC_KEY_ID" - $MY_USERNAME

        if grep -q "configure_email" $COMPLETION_FILE; then
            if ! grep -q $"Change your GPG password" /home/$MY_USERNAME/README; then
                echo '' >> /home/$MY_USERNAME/README
                echo '' >> /home/$MY_USERNAME/README
                echo $'Change your GPG password' >> /home/$MY_USERNAME/README
                echo '========================' >> /home/$MY_USERNAME/README
                echo $"It's very important to add a password to your GPG key so that" >> /home/$MY_USERNAME/README
                echo $"if anyone does get access to your email they still won't be able" >> /home/$MY_USERNAME/README
                echo $'to read them without knowning the GPG password.' >> /home/$MY_USERNAME/README
                echo $'You can change the it with:' >> /home/$MY_USERNAME/README
                echo '' >> /home/$MY_USERNAME/README
                echo "  gpg --edit-key $MY_GPG_PUBLIC_KEY_ID" >> /home/$MY_USERNAME/README
                echo '  passwd' >> /home/$MY_USERNAME/README
                echo '  save' >> /home/$MY_USERNAME/README
                echo '  quit' >> /home/$MY_USERNAME/README
            fi
            if ! grep -q $"Publish your GPG public key" /home/$MY_USERNAME/README; then
                echo '' >> /home/$MY_USERNAME/README
                echo '' >> /home/$MY_USERNAME/README
                echo $'Publish your GPG public key' >> /home/$MY_USERNAME/README
                echo '===========================' >> /home/$MY_USERNAME/README
                echo $'So that others can send emails to you securely you should' >> /home/$MY_USERNAME/README
                echo $'publish your GPG public key with the command:' >> /home/$MY_USERNAME/README
                echo '' >> /home/$MY_USERNAME/README
                echo "  gpg --send-keys $MY_GPG_PUBLIC_KEY_ID" >> /home/$MY_USERNAME/README
            fi
            chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
            chmod 600 /home/$MY_USERNAME/README
        fi
    fi

    echo 'configure_gpg' >> $COMPLETION_FILE
}

function configure_backup_key {
    if grep -Fxq "configure_backup_key" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install gnupg

    BACKUP_KEY_EXISTS=$(gpg_key_exists "root" "$MY_NAME (backup key)")
    if [[ $BACKUP_KEY_EXISTS == "yes" ]]; then
        return
    fi

    # Generate a GPG key for backups
    BACKUP_KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_NAME (backup key)")
    if [[ $BACKUP_KEY_EXISTS == "no" ]]; then
        echo 'Key-Type: 1' > /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Key-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Subkey-Type: 1' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Subkey-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
        echo "Name-Real:  $MY_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
        echo "Name-Email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/gpg-genkey.conf
        echo "Name-Comment: backup key" >> /home/$MY_USERNAME/gpg-genkey.conf
        echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
        echo $'Backup key does not exist. Creating it.'
        su -c "gpg --batch --gen-key /home/$MY_USERNAME/gpg-genkey.conf" - $MY_USERNAME
        shred -zu /home/$MY_USERNAME/gpg-genkey.conf
        echo $'Checking that the Backup key was created'
        BACKUP_KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_NAME (backup key)")
        if [[ $BACKUP_KEY_EXISTS == "no" ]]; then
            echo $'Backup key could not be created'
            exit 43382
        fi
    fi
    MY_BACKUP_KEY_ID=$(su -c "gpg --list-keys \"$MY_NAME (backup key)\" | grep 'pub '" - $MY_USERNAME | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
    echo "Backup key: $MY_BACKUP_KEY_ID"
    MY_BACKUP_KEY=/home/$MY_USERNAME/backup_key
    su -c "gpg --output ${MY_BACKUP_KEY}_public.asc --armor --export $MY_BACKUP_KEY_ID" - $MY_USERNAME
    su -c "gpg --output ${MY_BACKUP_KEY}_private.asc --armor --export-secret-key $MY_BACKUP_KEY_ID" - $MY_USERNAME
    if [ ! -f ${MY_BACKUP_KEY}_public.asc ]; then
        echo 'Public backup key could not be exported'
        exit 36829
    fi
    if [ ! -f ${MY_BACKUP_KEY}_private.asc ]; then
        echo 'Private backup key could not be exported'
        exit 29235
    fi

    # import backup key to root user
    gpg --import --import ${MY_BACKUP_KEY}_public.asc
    gpg --allow-secret-key-import --import ${MY_BACKUP_KEY}_private.asc

    shred -zu ${MY_BACKUP_KEY}_public.asc
    shred -zu ${MY_BACKUP_KEY}_private.asc

    echo 'configure_backup_key' >> $COMPLETION_FILE
}

function encrypt_incoming_email {
    # encrypts incoming mail using your GPG public key
    # so even if an attacker gains access to the data at rest they still need
    # to know your GPG key password to be able to read anything
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $INSTALL_DIR/gpgit "gpgit commit" "$GPGIT_COMMIT" $GPGIT_REPO

    if grep -Fxq "encrypt_incoming_email" $COMPLETION_FILE; then
        return
    fi

    if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
        return
    fi

    if [ ! -f /usr/bin/gpgit.pl ]; then
        apt-get -y install git libmail-gnupg-perl
        cd $INSTALL_DIR
        git_clone $GPGIT_REPO $INSTALL_DIR/gpgit
        cd $INSTALL_DIR/gpgit
        git checkout $GPGIT_COMMIT -b $GPGIT_COMMIT
        if ! grep -q "gpgit commit" $COMPLETION_FILE; then
            echo "gpgit commit:$GPGIT_COMMIT" >> $COMPLETION_FILE
        else
            sed -i "s/gpgit commit.*/gpgit commit:$GPGIT_COMMIT/g" $COMPLETION_FILE
        fi
        cp gpgit.pl /usr/bin
    fi

    # add a procmail rule
    if ! grep -q "/usr/bin/gpgit.pl" /home/$MY_USERNAME/.procmailrc; then
        echo '' >> /home/$MY_USERNAME/.procmailrc
        echo ':0 f' >> /home/$MY_USERNAME/.procmailrc
        echo "| /usr/bin/gpgit.pl --encrypt-mode prefer-inline --inline-flatten $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/.procmailrc
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
        echo '' >> /etc/skel/.procmailrc
        echo ':0 f' >> /etc/skel/.procmailrc
        echo -n '| /usr/bin/gpgit.pl --encrypt-mode prefer-inline --inline-flatten $USER@' >> /etc/skel/.procmailrc
        echo "$DEFAULT_DOMAIN_NAME" >> /etc/skel/.procmailrc
    fi
    echo 'encrypt_incoming_email' >> $COMPLETION_FILE
}

function encrypt_outgoing_email {
    # encrypts outgoing mail using your GPG public key
    # so even if an attacker gains access to the data at rest they still need
    # to know your GPG key password to be able to read sent mail
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "encrypt_outgoing_email" $COMPLETION_FILE; then
        return
    fi
    if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
        return
    fi

    if [ ! -d /home/$MY_USERNAME/.gnupg ]; then
        return
    fi

    if [ ! -f /home/$MY_USERNAME/.muttrc ]; then
        return
    fi

    # obtain your public key ID
    if [ ! $MY_GPG_PUBLIC_KEY_ID ]; then
        MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
        if [ ! "$MY_GPG_PUBLIC_KEY_ID" ]; then
            return
        fi
        if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
            return
        fi
    fi

    if ! grep -q "pgp_encrypt_only_command" /home/$MY_USERNAME/.muttrc; then
        echo '' >> /home/$MY_USERNAME/.muttrc
        echo $'# Encrypt items in the Sent folder' >> /home/$MY_USERNAME/.muttrc
        echo "set pgp_encrypt_only_command=\"/usr/lib/mutt/pgpewrap gpg --batch --quiet --no-verbose --output - --encrypt --textmode --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"" >> /home/$MY_USERNAME/.muttrc
    else
        sed -i "s|set pgp_encrypt_only_command.*|set pgp_encrypt_only_command=\"/usr/lib/mutt/pgpewrap gpg --batch --quiet --no-verbose --output - --encrypt --textmode --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"|g" /home/$MY_USERNAME/.muttrc
    fi

    if ! grep -q "pgp_encrypt_sign_command" /home/$MY_USERNAME/.muttrc; then
        echo "set pgp_encrypt_sign_command=\"/usr/lib/mutt/pgpewrap gpg %?p?--passphrase-fd 0? --batch --quiet --no-verbose --textmode --output - --encrypt --sign %?a?-u %a? --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"" >> /home/$MY_USERNAME/.muttrc
    else
        sed -i "s|set pgp_encrypt_sign_command.*|set pgp_encrypt_sign_command=\"/usr/lib/mutt/pgpewrap gpg %?p?--passphrase-fd 0? --batch --quiet --no-verbose --textmode --output - --encrypt --sign %?a?-u %a? --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"|g" /home/$MY_USERNAME/.muttrc
    fi

    echo 'encrypt_outgoing_email' >> $COMPLETION_FILE
}

function encrypt_all_email {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
        return
    fi

    if [ -f /usr/local/bin/${PROJECT_NAME}-encrypt-mail ]; then
        cp /usr/local/bin/${PROJECT_NAME}-encrypt-mail /usr/bin/encmaildir
    else
        cp /usr/bin/${PROJECT_NAME}-encrypt-mail /usr/bin/encmaildir
    fi
    chmod +x /usr/bin/encmaildir

    if grep -Fxq "encrypt_all_email" $COMPLETION_FILE; then
        return
    fi

    if [ ! /home/$MY_USERNAME/README ]; then
        touch /home/$MY_USERNAME/README
    fi
    if ! grep -q $"If you have imported legacy email which is not encrypted" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Encrypting legacy email' >> /home/$MY_USERNAME/README
        echo '=======================' >> /home/$MY_USERNAME/README
        echo $'If you have imported legacy email which is not encrypted' >> /home/$MY_USERNAME/README
        echo $'then it can be encrypted with the command:' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo '  encmaildir' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'But be warned that depending upon how much email you have' >> /home/$MY_USERNAME/README
        echo $'this could take a seriously LONG time on the Beaglebone' >> /home/$MY_USERNAME/README
        echo $'and may be better done on a faster machine.' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'encrypt_all_email' >> $COMPLETION_FILE
}

function email_client {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "email_client" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install mutt-patched lynx abook

    if [ ! -f /etc/Muttrc ]; then
        echo $"ERROR: Mutt does not appear to have installed. $CHECK_MESSAGE"
        exit 49
    fi

    if [ ! -d /home/$MY_USERNAME/.mutt ]; then
        mkdir /home/$MY_USERNAME/.mutt
    fi
    echo "text/html; lynx -dump -width=78 -nolist %s | sed ‘s/^ //’; copiousoutput; needsterminal; nametemplate=%s.html" > /home/$MY_USERNAME/.mutt/mailcap
    cp /home/$MY_USERNAME/.mutt/mailcap /etc/skel/.mutt
    chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.mutt
    chown -R root:root /etc/skel/.mutt

    echo 'set mbox_type=Maildir' >> /etc/Muttrc
    echo 'set folder="~/Maildir"' >> /etc/Muttrc
    echo 'set mask="!^\\.[^.]"' >> /etc/Muttrc
    echo 'set mbox="~/Maildir"' >> /etc/Muttrc
    echo 'set record="+Sent"' >> /etc/Muttrc
    echo 'set postponed="+Drafts"' >> /etc/Muttrc
    echo 'set trash="+Trash"' >> /etc/Muttrc
    echo 'set spoolfile="~/Maildir"' >> /etc/Muttrc
    echo 'auto_view text/x-vcard text/html text/enriched' >> /etc/Muttrc
    echo 'set editor="emacs -q --load ~/.emacs-mutt"' >> /etc/Muttrc
    echo 'set header_cache="+.cache"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo 'macro index S "<tag-prefix><decode-save>=.learn-spam<enter>" "move to learn-spam"' >> /etc/Muttrc
    echo 'macro pager S "<decode-save>=.learn-spam<enter>" "move to learn-spam"' >> /etc/Muttrc
    echo 'macro index H "<tag-prefix><decode-copy>=.learn-ham<enter>" "copy to learn-ham"' >> /etc/Muttrc
    echo 'macro pager H "<decode-copy>=.learn-ham<enter>" "copy to learn-ham"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# set up the sidebar' >> /etc/Muttrc
    echo 'set sidebar_width=22' >> /etc/Muttrc
    echo 'set sidebar_visible=yes' >> /etc/Muttrc
    echo "set sidebar_delim='|'" >> /etc/Muttrc
    echo 'set sidebar_sort=yes' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo 'set rfc2047_parameters' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# Show inbox and sent items' >> /etc/Muttrc
    echo 'mailboxes = =Sent =maybe-spam =spam' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# Alter these colours as needed for maximum bling' >> /etc/Muttrc
    echo 'color sidebar_new yellow default' >> /etc/Muttrc
    echo 'color normal white default' >> /etc/Muttrc
    echo 'color hdrdefault brightcyan default' >> /etc/Muttrc
    echo 'color signature green default' >> /etc/Muttrc
    echo 'color attachment brightyellow default' >> /etc/Muttrc
    echo 'color quoted green default' >> /etc/Muttrc
    echo 'color quoted1 white default' >> /etc/Muttrc
    echo 'color tilde blue default' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# ctrl-n, ctrl-p to select next, prev folder' >> /etc/Muttrc
    echo '# ctrl-o to open selected folder' >> /etc/Muttrc
    echo 'bind index \Cp sidebar-prev' >> /etc/Muttrc
    echo 'bind index \Cn sidebar-next' >> /etc/Muttrc
    echo 'bind index \Co sidebar-open' >> /etc/Muttrc
    echo 'bind pager \Cp sidebar-prev' >> /etc/Muttrc
    echo 'bind pager \Cn sidebar-next' >> /etc/Muttrc
    echo 'bind pager \Co sidebar-open' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# ctrl-b toggles sidebar visibility' >> /etc/Muttrc
    echo "macro index,pager \Cb '<enter-command>toggle sidebar_visible<enter><redraw-screen>' 'toggle sidebar'" >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# esc-m Mark new messages as read' >> /etc/Muttrc
    echo 'macro index <esc>m "T~N<enter>;WNT~O<enter>;WO\CT~T<enter>" "mark all messages read"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# Collapsing threads' >> /etc/Muttrc
    echo 'macro index [ "<collapse-thread>" "collapse/uncollapse thread"' >> /etc/Muttrc
    echo 'macro index ] "<collapse-all>"    "collapse/uncollapse all threads"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# threads containing new messages' >> /etc/Muttrc
    echo 'uncolor index "~(~N)"' >> /etc/Muttrc
    echo 'color index brightblue default "~(~N)"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# new messages themselves' >> /etc/Muttrc
    echo 'uncolor index "~N"' >> /etc/Muttrc
    echo 'color index brightyellow default "~N"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# GPG/PGP integration' >> /etc/Muttrc
    echo '# this set the number of seconds to keep in memory the passphrase used to encrypt/sign' >> /etc/Muttrc
    echo 'set pgp_timeout=1800' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# automatically sign and encrypt with PGP/MIME' >> /etc/Muttrc
    echo 'set pgp_autosign         # autosign all outgoing mails' >> /etc/Muttrc
    echo 'set pgp_autoencrypt      # Try to encrypt automatically' >> /etc/Muttrc
    echo 'set pgp_replyencrypt     # autocrypt replies to crypted' >> /etc/Muttrc
    echo 'set pgp_replysign        # autosign replies to signed' >> /etc/Muttrc
    echo 'set pgp_auto_decode=yes  # decode attachments' >> /etc/Muttrc
    echo 'set fcc_clear=no         # Keep encrypted copy of sent encrypted mail' >> /etc/Muttrc
    echo 'unset smime_is_default' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo 'set alias_file=~/.mutt-alias' >> /etc/Muttrc
    echo 'source ~/.mutt-alias' >> /etc/Muttrc
    echo 'set query_command= "abook --mutt-query \"%s\""' >> /etc/Muttrc
    echo 'macro index,pager A "<pipe-message>abook --add-email-quiet<return>" "add the sender address to abook"' >> /etc/Muttrc
    echo '' >> /etc/Muttrc
    echo '# Optional relay of SMTP via ISP' >> /etc/Muttrc
    echo '#set smtp_url="smtps://username:password@isp_mail_domain:465/"' >> /etc/Muttrc

    # create an Emacs configuration specifically for use with Mutt, which
    # has word wrap and spell checking on by default
    echo "(add-hook 'before-save-hook 'delete-trailing-whitespace)" > /home/$MY_USERNAME/.emacs-mutt
    echo '(setq org-support-shift-select t)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq standard-indent 4)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq-default tab-width 4)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq c-basic-offset 4)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(mouse-wheel-mode t)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq make-backup-files t)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq version-control t)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq backup-directory-alist (quote ((".*" . "~/.emacs_backups/"))))' >> /home/$MY_USERNAME/.emacs-mutt
    echo "(setq default-major-mode 'text-mode)" >> /home/$MY_USERNAME/.emacs-mutt
    echo "(dolist (hook '(text-mode-hook))" >> /home/$MY_USERNAME/.emacs-mutt
    echo '    (add-hook hook (lambda () (flyspell-mode 1))))' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq-default fill-column 72)' >> /home/$MY_USERNAME/.emacs-mutt
    echo '(setq auto-fill-mode 0)' >> /home/$MY_USERNAME/.emacs-mutt
    echo "(add-hook 'text-mode-hook 'turn-on-auto-fill)" >> /home/$MY_USERNAME/.emacs-mutt
    echo "(setq-default auto-fill-function 'do-auto-fill)" >> /home/$MY_USERNAME/.emacs-mutt

    # add the emacs mutt configuration to the user profile skeleton
    if [ ! -f /etc/skel/.emacs-mutt ]; then
        cp /home/$MY_USERNAME/.emacs-mutt /etc/skel/.emacs-mutt
        chown root:root /etc/skel/.emacs-mutt
    fi

    cp -f /etc/Muttrc /home/$MY_USERNAME/.muttrc
    cp -f /etc/Muttrc /etc/skel/.muttrc
    touch /home/$MY_USERNAME/.mutt-alias
    cp /home/$MY_USERNAME/.mutt-alias /etc/skel/.mutt-alias
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.emacs-mutt
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.muttrc
    chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.mutt-alias

    # default user on generic images
    if [ -d /home/${GENERIC_IMAGE_USERNAME} ]; then
        cp -f /etc/Muttrc /home/${GENERIC_IMAGE_USERNAME}/.muttrc
        chown ${GENERIC_IMAGE_USERNAME}:${GENERIC_IMAGE_USERNAME} /home/${GENERIC_IMAGE_USERNAME}/.muttrc
        touch /home/${GENERIC_IMAGE_USERNAME}/.mutt-alias
        chown ${GENERIC_IMAGE_USERNAME}:${GENERIC_IMAGE_USERNAME} /home/${GENERIC_IMAGE_USERNAME}/.mutt-alias
        cp /etc/skel/.emacs-mutt /home/${GENERIC_IMAGE_USERNAME}/.emacs-mutt
        chown ${GENERIC_IMAGE_USERNAME}:${GENERIC_IMAGE_USERNAME} /home/${GENERIC_IMAGE_USERNAME}/.emacs-mutt
    fi

    echo 'email_client' >> $COMPLETION_FILE
}

function email_archiving {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    # ensure that the mail archive script is up to date
    if [ -f /usr/local/bin/${PROJECT_NAME}-archive-mail ]; then
        cp /usr/local/bin/${PROJECT_NAME}-archive-mail /etc/cron.daily/archivemail
    else
        if [ -f /usr/bin/${PROJECT_NAME}-archive-mail ]; then
            cp /usr/bin/${PROJECT_NAME}-archive-mail /etc/cron.daily/archivemail
        else
            echo "/usr/bin/${PROJECT_NAME}-archive-mail was not found. ${PROJECT_NAME} might not have fully installed."
            exit 62379
        fi
    fi
    chmod +x /etc/cron.daily/archivemail

    # update to the next commit
    set_repo_commit $INSTALL_DIR/cleanup-maildir "cleanup-maildir commit" "$CLEANUP_MAILDIR_COMMIT" $CLEANUP_MAILDIR_REPO

    if grep -Fxq "email_archiving" $COMPLETION_FILE; then
        return
    fi

    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    cd $INSTALL_DIR
    git_clone $CLEANUP_MAILDIR_REPO $INSTALL_DIR/cleanup-maildir
    cd $INSTALL_DIR/cleanup-maildir
    git checkout $CLEANUP_MAILDIR_COMMIT -b $CLEANUP_MAILDIR_COMMIT
    if ! grep -q "cleanup-maildir commit" $COMPLETION_FILE; then
        echo "cleanup-maildir commit:$CLEANUP_MAILDIR_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/cleanup-maildir commit.*/cleanup-maildir commit:$CLEANUP_MAILDIR_COMMIT/g" $COMPLETION_FILE
    fi

    cp $INSTALL_DIR/cleanup-maildir/cleanup-maildir /usr/bin

    echo 'email_archiving' >> $COMPLETION_FILE
}

# Ensure that the from field is correct when sending email from Mutt
function email_from_address {
    if grep -Fxq "email_from_address" $COMPLETION_FILE; then
        return
    fi

    if [ ! -f /home/$MY_USERNAME/.muttrc ]; then
        return
    fi
    if grep -q "set from=" /home/$MY_USERNAME/.muttrc; then
        sed -i "s|set from=.*|set from='$MY_NAME <$MY_EMAIL_ADDRESS>'|g" /home/$MY_USERNAME/.muttrc
    else
        echo "set from='$MY_NAME <$MY_EMAIL_ADDRESS>'" >> /home/$MY_USERNAME/.muttrc
    fi

    echo 'email_from_address' >> $COMPLETION_FILE
}

function create_public_mailing_list {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "create_public_mailing_list" $COMPLETION_FILE; then
        return
    fi
    if [ ! $PUBLIC_MAILING_LIST ]; then
        return
    fi
    # does the mailing list have a separate domain name?
    if [ ! $PUBLIC_MAILING_LIST_DOMAIN_NAME ]; then
        PUBLIC_MAILING_LIST_DOMAIN_NAME=$DEFAULT_DOMAIN_NAME
    fi

    PUBLIC_MAILING_LIST_USER="mlmmj"

    apt-get -y install mlmmj
    adduser --system $PUBLIC_MAILING_LIST_USER
    addgroup $PUBLIC_MAILING_LIST_USER
    adduser $PUBLIC_MAILING_LIST_USER $PUBLIC_MAILING_LIST_USER

    echo ''
    echo $"Creating the $PUBLIC_MAILING_LIST mailing list"
    echo ''

    # create the list
    mlmmj-make-ml -a -L "$PUBLIC_MAILING_LIST" -c $PUBLIC_MAILING_LIST_USER

    echo 'SYSTEM_ALIASES_PIPE_TRANSPORT = address_pipe' > /etc/exim4/conf.d/main/000_localmacros
    echo "SYSTEM_ALIASES_USER = $PUBLIC_MAILING_LIST_USER" >> /etc/exim4/conf.d/main/000_localmacros
    echo "SYSTEM_ALIASES_GROUP = $PUBLIC_MAILING_LIST_USER" >> /etc/exim4/conf.d/main/000_localmacros

    # router
    echo 'mlmmj_router:' > /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  debug_print = "R: mlmmj_router for $local_part@$domain"' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  driver = accept' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  domains = +mlmmj_domains' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  #require_files = MLMMJ_HOME/${lc::$local_part}' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  # Use this instead, if you dont want to give Exim rx rights to mlmmj spool.' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  # Exim will then spawn a new process running under the UID of "mlmmj".' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  require_files = mlmmj:MLMMJ_HOME/${lc::$local_part}' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  local_part_suffix = +*' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  local_part_suffix_optional' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  headers_remove = Delivered-To' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  headers_add = Delivered-To: $local_part$local_part_suffix@$domain' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
    echo '  transport = mlmmj_transport' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj

    # transport
    echo 'mlmmj_transport:' > /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  debug_print = "T: mlmmj_transport for $local_part@$domain"' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  driver = pipe' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  return_path_add' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  user = mlmmj' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  group = mlmmj' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  home_directory = MLMMJ_HOME' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  current_directory = MLMMJ_HOME' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
    echo '  command = /usr/bin/mlmmj-receive -F -L MLMMJ_HOME/${lc:$local_part}' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj

    if ! grep -q "MLMMJ_HOME=/var/spool/mlmmj" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
        sed -i '/MAIN CONFIGURATION SETTINGS/a\MLMMJ_HOME=/var/spool/mlmmj' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
    fi
    if ! grep -q "domainlist mlmmj_domains =" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
        sed -i "/MLMMJ_HOME/a\domainlist mlmmj_domains = $PUBLIC_MAILING_LIST_DOMAIN_NAME" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
    fi


    if ! grep -q "delay_warning_condition =" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
        sed -i '/domainlist mlmmj_domains =/a\delay_warning_condition = ${if match_domain{$domain}{+mlmmj_domains}{no}{yes}}' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
    fi
    if ! grep -q ": +mlmmj_domains" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
        sed -i 's/domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS/domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS : +mlmmj_domains/g' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
    fi

    if ! grep -q "! +mlmmj_domains" /etc/exim4/conf.d/router/200_exim4-config_primary; then
        sed -i 's/domains = ! +local_domains/domains = ! +mlmmj_domains : ! +local_domains/g' /etc/exim4/conf.d/router/200_exim4-config_primary
    fi
    newaliases
    update-exim4.conf.template -r
    update-exim4.conf
    systemctl restart exim4

    if ! grep -q $"$PUBLIC_MAILING_LIST mailing list" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $"$PUBLIC_MAILING_LIST mailing list" >> /home/$MY_USERNAME/README
        echo '=================================' >> /home/$MY_USERNAME/README
        echo $"To subscribe to the $PUBLIC_MAILING_LIST mailing list send a" >> /home/$MY_USERNAME/README
        echo $"cleartext email to $PUBLIC_MAILING_LIST+subscribe@$DEFAULT_DOMAIN_NAME" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    ${PROJECT_NAME}-addlist -u $MY_USERNAME -l "$PUBLIC_MAILING_LIST" -s "$PUBLIC_MAILING_LIST"

    echo 'create_public_mailing_list' >> $COMPLETION_FILE
}

function create_private_mailing_list {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    # This installation doesn't work, results in ruby errors
    # There is currently no schleuder package for Debian jessie
    if grep -Fxq "create_private_mailing_list" $COMPLETION_FILE; then
        return
    fi
    if [ ! $PRIVATE_MAILING_LIST ]; then
        return
    fi
    if [[ $PRIVATE_MAILING_LIST == $MY_USERNAME ]]; then
        echo $'The name of the private mailing list should not be the same as your username'
        exit 10
    fi
    if [ ! $MY_GPG_PUBLIC_KEY ]; then
        echo $'To create a private mailing list you need to specify a file'
        echo $'containing your exported GPG key within MY_GPG_PUBLIC_KEY at'
        echo $'the top of the script'
        exit 11
    fi
    apt-get -y install ruby ruby-dev ruby-gpgme libgpgme11-dev libmagic-dev
    gem install schleuder
    schleuder-fix-gem-dependencies
    schleuder-init-setup --gem
    # NOTE: this is version number sensitive and so might need changing
    ln -s /var/lib/gems/2.1.0/gems/schleuder-2.2.4 /var/lib/schleuder
    sed -i 's/#smtp_port: 25/smtp_port: 465/g' /etc/schleuder/schleuder.conf
    sed -i 's/#superadminaddr: root@localhost/superadminaddr: root@localhost' /etc/schleuder/schleuder.conf
    schleuder-newlist $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME -realname "$PRIVATE_MAILING_LIST" -adminaddress $MY_EMAIL_ADDRESS -initmember $MY_EMAIL_ADDRESS -initmemberkey $MY_GPG_PUBLIC_KEY -nointeractive
    ${PROJECT_NAME}-addemail -u $MY_USERNAME -e $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME -l $PRIVATE_MAILING_LIST

    echo 'schleuder:' > /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  debug_print = "R: schleuder for $local_part@$domain"' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  driver = accept' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  local_part_suffix_optional' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  local_part_suffix = +* : -bounce : -sendkey' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  domains = +local_domains' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  user = schleuder' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  group = schleuder' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  require_files = schleuder:+/var/lib/schleuder/$domain/${local_part}' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
    echo '  transport = schleuder_transport' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder

    echo 'schleuder_transport:' > /etc/exim4/conf.d/transport/30_exim4-config_schleuder
    echo '  debug_print = "T: schleuder_transport for $local_part@$domain"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
    echo '  driver = pipe' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
    echo '  home_directory = "/var/lib/schleuder/$domain/$local_part"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
    echo '  command = "/usr/bin/schleuder $local_part@$domain"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
    chown -R schleuder:schleuder /var/lib/schleuder
    update-exim4.conf.template -r
    update-exim4.conf
    systemctl restart exim4
    useradd -d /var/schleuderlists -s /bin/false schleuder
    adduser Debian-exim schleuder
    usermod -a -G mail schleuder
    #exim -d -bt $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME
    echo 'create_private_mailing_list' >> $COMPLETION_FILE
}

function split_gpg_key_into_fragments {
    # split the gpg key into fragments if social key management is enabled
    if [[ $ENABLE_SOCIAL_KEY_MANAGEMENT == "yes" ]]; then
        echo 'Splitting GPG key. You may need to enter your passphrase.'
        ${PROJECT_NAME}-splitkey -u $MY_USERNAME -e $MY_EMAIL_ADDRESS --fullname "$MY_NAME"
        if [ ! -d /home/$MY_USERNAME/.gnupg_fragments ]; then
            echo 'Yhe GPG key could not be split'
            exit 86548
        fi
    fi
}

function import_email {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_NONMAILBOX" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    EMAIL_COMPLETE_MSG=$"
  *** ${PROJECT_NAME} mailbox installation is complete ***

      Now on your internet router forward ports
     25, 587, 465, 993 and 2222 to the ${PROJECT_NAME}
"
    if grep -Fxq "import_email" $COMPLETION_FILE; then
        if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" ]]; then
            backup_to_friends_servers
            intrusion_detection
            split_gpg_key_into_fragments
            clear
            echo ''
            echo "$EMAIL_COMPLETE_MSG"
            if [ -d $USB_MOUNT ]; then
                umount $USB_MOUNT
                rm -rf $USB_MOUNT
                echo $'            You can now remove the USB drive'
            fi
            exit 0
        fi
        return
    fi
    if [ $IMPORT_MAILDIR ]; then
        if [ -d $IMPORT_MAILDIR ]; then
            echo $'Transfering email files'
            cp -r $IMPORT_MAILDIR /home/$MY_USERNAME
            chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir
        else
            echo $"Email import directory $IMPORT_MAILDIR not found"
            exit 9
        fi
    fi
    echo 'import_email' >> $COMPLETION_FILE
    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" ]]; then
        backup_to_friends_servers
        intrusion_detection
        split_gpg_key_into_fragments
        # unmount any attached usb drive
        clear
        echo ''
        echo "$EMAIL_COMPLETE_MSG"
        echo ''
        if [ -d $USB_MOUNT ]; then
            umount $USB_MOUNT
            rm -rf $USB_MOUNT
            echo $'            You can now remove the USB drive'
        fi
        exit 0
    fi
}

function install_web_server {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $INSTALL_DIR/nginx_ensite "Nginx-ensite commit" "$NGINX_ENSITE_COMMIT" $NGINX_ENSITE_REPO

    if grep -Fxq "install_web_server" $COMPLETION_FILE; then
        return
    fi
    # remove apache
    apt-get -y remove --purge apache2
    if [ -d /etc/apache2 ]; then
        rm -rf /etc/apache2
    fi
    # install nginx
    apt-get -y install nginx php5-fpm git

    # limit the number of php processes
    sed -i 's/; process.max =.*/process.max = 32/g' /etc/php5/fpm/php-fpm.conf
    sed -i 's/;process_control_timeout =.*/process_control_timeout = 300/g' /etc/php5/fpm/php-fpm.conf

    if ! grep -q "pm.max_children" /etc/php5/fpm/php-fpm.conf; then
        echo 'pm.max_children = 10' >> /etc/php5/fpm/php-fpm.conf
        echo 'pm.start_servers = 2' >> /etc/php5/fpm/php-fpm.conf
        echo 'pm.min_spare_servers = 2' >> /etc/php5/fpm/php-fpm.conf
        echo 'pm.max_spare_servers = 5' >> /etc/php5/fpm/php-fpm.conf
        echo 'pm.max_requests = 50' >> /etc/php5/fpm/php-fpm.conf
    fi

    if [ ! -d /etc/nginx ]; then
        echo $"ERROR: nginx does not appear to have installed. $CHECK_MESSAGE"
        exit 51
    fi

    # Nginx settings
    echo 'user www-data;' > /etc/nginx/nginx.conf
    #echo "worker_processes; $CPU_CORES" >> /etc/nginx/nginx.conf
    echo 'pid /run/nginx.pid;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo 'events {' >> /etc/nginx/nginx.conf
    echo '        worker_connections 50;' >> /etc/nginx/nginx.conf
    echo '        # multi_accept on;' >> /etc/nginx/nginx.conf
    echo '}' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo 'http {' >> /etc/nginx/nginx.conf
    echo '        # limit the number of connections per single IP' >> /etc/nginx/nginx.conf
    echo '        limit_conn_zone $binary_remote_addr zone=conn_limit_per_ip:10m;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # limit the number of requests for a given session' >> /etc/nginx/nginx.conf
    echo '        limit_req_zone $binary_remote_addr zone=req_limit_per_ip:10m rate=140r/s;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # if the request body size is more than the buffer size, then the entire (or partial) request body is written into a temporary file' >> /etc/nginx/nginx.conf
    echo '        client_body_buffer_size  128k;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # headerbuffer size for the request header from client, its set for testing purpose' >> /etc/nginx/nginx.conf
    echo '        client_header_buffer_size 3m;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # maximum number and size of buffers for large headers to read from client request' >> /etc/nginx/nginx.conf
    echo '        large_client_header_buffers 4 256k;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # read timeout for the request body from client, its set for testing purpose' >> /etc/nginx/nginx.conf
    echo '        client_body_timeout   3m;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # how long to wait for the client to send a request header, its set for testing purpose' >> /etc/nginx/nginx.conf
    echo '        client_header_timeout 3m;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '        # Basic Settings' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        sendfile on;' >> /etc/nginx/nginx.conf
    echo '        tcp_nopush on;' >> /etc/nginx/nginx.conf
    echo '        tcp_nodelay on;' >> /etc/nginx/nginx.conf
    echo '        keepalive_timeout 65;' >> /etc/nginx/nginx.conf
    echo '        types_hash_max_size 2048;' >> /etc/nginx/nginx.conf
    echo '        server_tokens off;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # server_names_hash_bucket_size 64;' >> /etc/nginx/nginx.conf
    echo '        # server_name_in_redirect off;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        include /etc/nginx/mime.types;' >> /etc/nginx/nginx.conf
    echo '        default_type application/octet-stream;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '        # Logging Settings' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        access_log /var/log/nginx/access.log;' >> /etc/nginx/nginx.conf
    echo '        error_log /var/log/nginx/error.log;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        ###' >> /etc/nginx/nginx.conf
    echo '        # Gzip Settings' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '        gzip on;' >> /etc/nginx/nginx.conf
    echo '        gzip_disable "msie6";' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        # gzip_vary on;' >> /etc/nginx/nginx.conf
    echo '        # gzip_proxied any;' >> /etc/nginx/nginx.conf
    echo '        # gzip_comp_level 6;' >> /etc/nginx/nginx.conf
    echo '        # gzip_buffers 16 8k;' >> /etc/nginx/nginx.conf
    echo '        # gzip_http_version 1.1;' >> /etc/nginx/nginx.conf
    echo '        # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '        # Virtual Host Configs' >> /etc/nginx/nginx.conf
    echo '        ##' >> /etc/nginx/nginx.conf
    echo '' >> /etc/nginx/nginx.conf
    echo '        include /etc/nginx/conf.d/*.conf;' >> /etc/nginx/nginx.conf
    echo '        include /etc/nginx/sites-enabled/*;' >> /etc/nginx/nginx.conf
    echo '}' >> /etc/nginx/nginx.conf

    # install a script to easily enable and disable nginx virtual hosts
    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    cd $INSTALL_DIR
    git_clone $NGINX_ENSITE_REPO $INSTALL_DIR/nginx_ensite
    cd $INSTALL_DIR/nginx_ensite
    git checkout $NGINX_ENSITE_COMMIT -b $NGINX_ENSITE_COMMIT
    if ! grep -q "Nginx-ensite commit" $COMPLETION_FILE; then
        echo "Nginx-ensite commit:$NGINX_ENSITE_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/Nginx-ensite commit.*/Nginx-ensite commit:$NGINX_ENSITE_COMMIT/g" $COMPLETION_FILE
    fi

    make install
    nginx_dissite default
    echo 'install_web_server' >> $COMPLETION_FILE
}

function install_web_server_access_control {
    if [ ! -f /etc/pam.d/nginx ]; then
        echo '#%PAM-1.0' > /etc/pam.d/nginx
        echo '@include common-auth' >> /etc/pam.d/nginx
        echo '@include common-account' >> /etc/pam.d/nginx
        echo '@include common-session' >> /etc/pam.d/nginx
    fi
}

function configure_php {
    sed -i "s/memory_limit = 128M/memory_limit = ${MAX_PHP_MEMORY}M/g" /etc/php5/fpm/php.ini
    sed -i 's/;cgi.fix_pathinfo=1/cgi.fix_pathinfo=0/g' /etc/php5/fpm/php.ini
    sed -i "s/memory_limit = -1/memory_limit = ${MAX_PHP_MEMORY}M/g" /etc/php5/cli/php.ini
    sed -i "s/upload_max_filesize = 2M/upload_max_filesize = 50M/g" /etc/php5/fpm/php.ini
    sed -i "s/post_max_size = 8M/post_max_size = 50M/g" /etc/php5/fpm/php.ini
}

function install_mariadb {
    if grep -Fxq "install_mariadb" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install python-software-properties debconf-utils
    apt-get -y install software-properties-common
    apt-get -y update

    get_mariadb_password
    if [ ! $MARIADB_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            MARIADB_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            MARIADB_PASSWORD="$(openssl rand -base64 32 | cut -c1-30)"
        fi
        echo "$MARIADB_PASSWORD" > $DATABASE_PASSWORD_FILE
        chmod 600 $DATABASE_PASSWORD_FILE

        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo 'MariaDB / MySql' >> /home/$MY_USERNAME/README
        echo '===============' >> /home/$MY_USERNAME/README
        echo $"Your MariaDB password is: $MARIADB_PASSWORD" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    debconf-set-selections <<< "mariadb-server mariadb-server/root_password password $MARIADB_PASSWORD"
    debconf-set-selections <<< "mariadb-server mariadb-server/root_password_again password $MARIADB_PASSWORD"
    apt-get -y install mariadb-server
    apt-get -y remove --purge apache*
    if [ -d /etc/apache2 ]; then
        rm -rf /etc/apache2
        echo $'Removed Apache installation after MariaDB install'
    fi

    if [ ! -d /etc/mysql ]; then
        echo $"ERROR: mariadb-server does not appear to have installed. $CHECK_MESSAGE"
        exit 54
    fi

    mysqladmin -u root password "$MARIADB_PASSWORD"
    echo 'install_mariadb' >> $COMPLETION_FILE
}

function backup_databases_script_header {
    if [ ! -f /usr/bin/backupdatabases ]; then
        # daily
        echo '#!/bin/sh' > /usr/bin/backupdatabases
        echo '' >> /usr/bin/backupdatabases
        echo "EMAIL='$MY_EMAIL_ADDRESS'" >> /usr/bin/backupdatabases
        echo '' >> /usr/bin/backupdatabases
        echo -n 'MYSQL_PASSWORD=$(cat ' >> /usr/bin/backupdatabases
        echo "$DATABASE_PASSWORD_FILE)" >> /usr/bin/backupdatabases
        echo 'umask 0077' >> /usr/bin/backupdatabases
        echo '' >> /usr/bin/backupdatabases
        echo '# exit if we are backing up to friends servers' >> /usr/bin/backupdatabases
        echo "if [ -f $FRIENDS_SERVERS_LIST ]; then" >> /usr/bin/backupdatabases
        echo '  exit 1' >> /usr/bin/backupdatabases
        echo 'fi' >> /usr/bin/backupdatabases
        chmod 600 /usr/bin/backupdatabases
        chmod +x /usr/bin/backupdatabases

        echo '#!/bin/sh' > /etc/cron.daily/backupdatabasesdaily
        echo '/usr/bin/backupdatabases' >> /etc/cron.daily/backupdatabasesdaily
        chmod 600 /etc/cron.daily/backupdatabasesdaily
        chmod +x /etc/cron.daily/backupdatabasesdaily

        # weekly
        echo '#!/bin/sh' > /etc/cron.weekly/backupdatabasesweekly
        echo '' >> /etc/cron.weekly/backupdatabasesweekly
        echo 'umask 0077' >> /etc/cron.weekly/backupdatabasesweekly

        chmod 600 /etc/cron.weekly/backupdatabasesweekly
        chmod +x /etc/cron.weekly/backupdatabasesweekly

        # monthly
        echo '#!/bin/sh' > /etc/cron.monthly/backupdatabasesmonthly
        echo '' >> /etc/cron.monthly/backupdatabasesmonthly
        echo 'umask 0077' >> /etc/cron.monthly/backupdatabasesmonthly

        chmod 600 /etc/cron.monthly/backupdatabasesmonthly
        chmod +x /etc/cron.monthly/backupdatabasesmonthly
    fi
}

function repair_databases_script {
    if [ -f /etc/cron.hourly/repair ]; then
        sed -i "s|/usr/bin/repairdatabase|${PROJECT_NAME}-repair-database|g" /etc/cron.hourly/repair
    fi

    if grep -Fxq "repair_databases_script" $COMPLETION_FILE; then
        return
    fi

    if [ ! -f $DATABASE_PASSWORD_FILE ]; then
        return
    fi

    echo '#!/bin/bash' > /etc/cron.hourly/repair
    echo '' >> /etc/cron.hourly/repair
    chmod 600 /etc/cron.hourly/repair
    chmod +x /etc/cron.hourly/repair

    echo 'repair_databases_script' >> $COMPLETION_FILE
}

function add_ddns_domain {
    if [ ! $1 ]; then
        echo $'ddns domain not specified'
        exit 5638
    fi
    CURRENT_DDNS_DOMAIN="$1"
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi
    if [ ! -f /etc/inadyn.conf ]; then
        echo $'Unable to find inadyn configuration file /etc/inadyn.conf'
        exit 5745
    fi
    if ! grep -q "$DDNS_PROVIDER" /etc/inadyn.conf; then
        echo '' >> /etc/inadyn.conf
        echo "system $DDNS_PROVIDER" >> /etc/inadyn.conf
        echo '  ssl' >> /etc/inadyn.conf
        echo "  checkip-url $GET_IP_ADDRESS_URL /" >> /etc/inadyn.conf
        if [ $DDNS_USERNAME ]; then
            echo "  username $DDNS_USERNAME" >> /etc/inadyn.conf
        fi
        if [ $DDNS_PASSWORD ]; then
            echo "  password $DDNS_PASSWORD" >> /etc/inadyn.conf
        fi
    fi

    if ! grep -q "$CURRENT_DDNS_DOMAIN" /etc/inadyn.conf; then
        echo "  alias $CURRENT_DDNS_DOMAIN" >> /etc/inadyn.conf
    fi
    chmod 600 /etc/inadyn.conf
    systemctl restart inadyn
    systemctl daemon-reload
}

function install_syncthing {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_syncthing" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install curl

    curl -s https://syncthing.net/release-key.txt | apt-key add -
    echo "deb http://apt.syncthing.net/ syncthing release" | tee /etc/apt/sources.list.d/syncthing.list
    apt-get update
    apt-get -y install syncthing

    # This probably does need to run as root so that it can access the Sync directories
    # in each user's home directory
    echo '[Unit]' > /etc/systemd/system/syncthing.service
    echo 'Description=Syncthing - Open Source Continuous File Synchronization' >> /etc/systemd/system/syncthing.service
    echo 'Documentation=man:syncthing(1)' >> /etc/systemd/system/syncthing.service
    echo 'After=network.target' >> /etc/systemd/system/syncthing.service
    echo 'Wants=syncthing-inotify@.service' >> /etc/systemd/system/syncthing.service
    echo '' >> /etc/systemd/system/syncthing.service
    echo '[Service]' >> /etc/systemd/system/syncthing.service
    echo 'User=root' >> /etc/systemd/system/syncthing.service
    echo 'ExecStart=/usr/bin/syncthing -no-browser -no-restart -logflags=0' >> /etc/systemd/system/syncthing.service
    echo 'Restart=on-failure' >> /etc/systemd/system/syncthing.service
    echo 'SuccessExitStatus=3 4' >> /etc/systemd/system/syncthing.service
    echo 'RestartForceExitStatus=3 4' >> /etc/systemd/system/syncthing.service
    echo '' >> /etc/systemd/system/syncthing.service
    echo '[Install]' >> /etc/systemd/system/syncthing.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/syncthing.service
    systemctl enable syncthing
    systemctl daemon-reload
    systemctl start syncthing

    if ! grep -q "syncthing" /etc/crontab; then
        echo "*/1            * *   *   *   root /usr/local/bin/freedombone-syncthing > /dev/null" >> /etc/crontab
        systemctl restart cron
    fi
    
    echo 'install_syncthing' >> $COMPLETION_FILE
}

function upgrade_golang {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    # NOTE: this is annoyingly hacky and going in the opposite
    # direction of a pure blend, but it's necessary if you want
    # to run the latest version of gogs

    # update to the next commit
    set_repo_commit $INSTALL_DIR/gvm "gvm commit" "$GVM_COMMIT" $GVM_REPO

    if grep -Fxq "upgrade_golang" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install curl git mercurial make binutils bison gcc build-essential
    if [ ! -d $INSTALL_DIR ]; then
        mkdir $INSTALL_DIR
    fi
    cd $INSTALL_DIR
    git_clone $GVM_REPO gvm
    cd $INSTALL_DIR/gvm
    git checkout $GVM_COMMIT -b $GVM_COMMIT
    if [ ! -f binscripts/gvm-installer ]; then
        echo $'gvm installer not found'
    fi
    chmod +x binscripts/gvm-installer

    # TODO: this script is all over the place
    # and contains hardcoded github. See if you can do better
    ./binscripts/gvm-installer
    [[ -s "$HOME/.gvm/scripts/gvm" ]] && source "$HOME/.gvm/scripts/gvm"
    gvm install go1.4
    gvm use go1.4
    export GOROOT_BOOTSTRAP=$GOROOT
    gvm install go1.5
    if [ ! "$?" = "0" ]; then
        echo $'Unable to upgrade golang'
        exit 529252
    fi
    gvm use go1.5 --default

    if ! grep -q "gvm commit" $COMPLETION_FILE; then
        echo "gvm commit:$GVM_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/gvm commit.*/gvm commit:$GVM_COMMIT/g" $COMPLETION_FILE
    fi

    echo 'upgrade_golang' >> $COMPLETION_FILE
}

function install_gogs {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! $GIT_DOMAIN_NAME ]; then
        return
    fi

    export GOPATH=/home/git/go
    systemctl set-environment GOPATH=/home/git/go

    # update to the next commit
    set_repo_commit $GOPATH/src/github.com/gogits/gogs "Gogs commit" "$GOGS_COMMIT" $GIT_DOMAIN_REPO

    if grep -Fxq "install_gogs" $COMPLETION_FILE; then
        return
    fi

    # http://gogs.io/docs/installation/install_from_source.md

    # add a gogs user account
    adduser --disabled-login --gecos 'Gogs' git

    # install Go
    apt-get -y install golang libpam0g-dev
    if ! grep -q "export GOPATH=/home/git/go" ~/.bashrc; then
        echo 'export GOPATH=/home/git/go' >> ~/.bashrc
        echo 'systemctl set-environment GOPATH=/home/git/go' >> ~/.bashrc
    fi
    if [ ! -d $GOPATH ]; then
        mkdir -p $GOPATH
    fi
    GO_PACKAGE_MANAGER_REPO2=$(echo "$GO_PACKAGE_MANAGER_REPO" | sed 's|https://||g')
    go get -u $GO_PACKAGE_MANAGER_REPO2
    if [ ! "$?" = "0" ]; then
        echo $'install_gogs: go get failed'
        exit 479832
    fi

    # clone the repo
    if [ ! -d $GOPATH/src/github.com/gogits ]; then
        mkdir -p $GOPATH/src/github.com/gogits
    fi
    git_clone $GIT_DOMAIN_REPO $GOPATH/src/github.com/gogits/gogs
    if [ ! -d $GOPATH/src/github.com/gogits/gogs ]; then
        echo $"Unable to clone repo $GOPATH/src/github.com/gogits/gogs"
        exit 85482
    fi
    cd $GOPATH/src/github.com/gogits/gogs

    # install
    go get -u ./...

    git checkout $GOGS_COMMIT -b $GOGS_COMMIT
    if ! grep -q "Gogs commit" $COMPLETION_FILE; then
        echo "Gogs commit:$GOGS_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/Gogs commit.*/Gogs commit:$GOGS_COMMIT/g" $COMPLETION_FILE
    fi

    go build
    if [ ! "$?" = "0" ]; then
        echo $'install_gogs: go build failed'
        exit 546750
    fi

    install_mariadb
    get_mariadb_password

    get_mariadb_git_admin_password
    if [ ! $GIT_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            GIT_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            GIT_ADMIN_PASSWORD="$(openssl rand -base64 32 | cut -c1-30)"
        fi
    fi

    if ! grep -q $"Gogs admin user password" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo 'Gogs' >> /home/$MY_USERNAME/README
        echo '====' >> /home/$MY_USERNAME/README
        echo $'Database type: MySql' >> /home/$MY_USERNAME/README
        echo $'Database host: 127.0.0.1:3306' >> /home/$MY_USERNAME/README
        echo $'Database user: root' >> /home/$MY_USERNAME/README
        echo $"Database password: $MARIADB_PASSWORD" >> /home/$MY_USERNAME/README
        echo $'Database name: gogs' >> /home/$MY_USERNAME/README
        echo $'Gogs admin user: gogsadmin' >> /home/$MY_USERNAME/README
        echo $"Gogs admin user password: $GIT_ADMIN_PASSWORD" >> /home/$MY_USERNAME/README
        echo $"Gogs admin user email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Install Steps For First-time Run:' >> /home/$MY_USERNAME/README
        echo $'Leave email service settings empty' >> /home/$MY_USERNAME/README
        echo $'Check "Enable Register Confirmation"' >> /home/$MY_USERNAME/README
        echo $'Check "Enable Mail Notification"' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'After the initial install edit /home/git/go/src/github.com/gogits/gogs/custom/conf/app.ini' >> /home/$MY_USERNAME/README
        echo $'and within the [server] section set:' >> /home/$MY_USERNAME/README
        echo "  DOMAIN = $GIT_DOMAIN_NAME" >> /home/$MY_USERNAME/README
        echo "  ROOT_URL = http://$GIT_DOMAIN_NAME/" >> /home/$MY_USERNAME/README
        echo "  SSH_PORT = $SSH_PORT" >> /home/$MY_USERNAME/README
        echo $'If you want to disable new account registrations then append the following:' >> /home/$MY_USERNAME/README
        echo '  [service]' >> /home/$MY_USERNAME/README
        echo '  DISABLE_REGISTRATION = true' >> /home/$MY_USERNAME/README
        echo $'Then restart with:' >> /home/$MY_USERNAME/README
        echo '  systemctl restart gogs' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $"Note that there's a usability/security trade-off made here." >> /home/$MY_USERNAME/README
        echo $"In order to allow git clone via http we don't redirect everything" >> /home/$MY_USERNAME/README
        echo $'over https. Instead only critical things such as user login,' >> /home/$MY_USERNAME/README
        echo $'settings and admin are encrypted.' >> /home/$MY_USERNAME/README
        echo $'There are also potential security issues with cloning/pulling/pushing' >> /home/$MY_USERNAME/README
        echo $'code over http, since a determined adversary could inject malware' >> /home/$MY_USERNAME/README
        echo $'into the stream as it passes, so beware.' >> /home/$MY_USERNAME/README
        echo $'If you have a bought domain and a non-self signed cert then you' >> /home/$MY_USERNAME/README
        echo $"should change /etc/nginx/sites-available/$GIT_DOMAIN_NAME to redirect everything over https." >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    create_database gogs "$GOGS_ADMIN_PASSWORD"

    chmod 600 /home/git/go/src/github.com/gogits/gogs/custom/conf/app.ini

    chown -R git:git /home/git
    cp $GOPATH/src/github.com/gogits/gogs/scripts/systemd/gogs.service /etc/systemd/system
    sed -i 's|#After=mysqld.service|After=mysqld.service|g' /etc/systemd/system/gogs.service
    sed -i "s|WorkingDirectory=.*|WorkingDirectory=$GOPATH/src/github.com/gogits/gogs|g" /etc/systemd/system/gogs.service
    sed -i "s|ExecStart=.*|ExecStart=$GOPATH/src/github.com/gogits/gogs/gogs web|g" /etc/systemd/system/gogs.service
    sed -i "s|Environment.*|Environment=\"USER=git\" \"HOME=/home/git\" \"GOPATH=/home/git/go\"|g" /etc/systemd/system/gogs.service
    systemctl enable gogs
    systemctl daemon-reload
    systemctl restart gogs

    if [ ! -d /var/www/$GIT_DOMAIN_NAME ]; then
        mkdir /var/www/$GIT_DOMAIN_NAME
    fi
    if [ -d /var/www/$GIT_DOMAIN_NAME/htdocs ]; then
        rm -rf /var/www/$GIT_DOMAIN_NAME/htdocs
    fi

    if [[ $ONION_ONLY == "no" ]]; then
        echo 'server {' > /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    listen 80;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo "    server_name $GIT_DOMAIN_NAME;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${GIT_DOMAIN_NAME}_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        nginx_disable_sniffing $GIT_DOMAIN_NAME
        nginx_limits $GIT_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        proxy_pass http://localhost:3000;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    location ^~ /user/ {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        rewrite ^ https://$server_name$request_uri?;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    location ^~ /admin/ {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        rewrite ^ https://$server_name$request_uri?;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo 'server {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    listen 443 ssl;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo "    root /var/www/$GIT_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo "    server_name $GIT_DOMAIN_NAME;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${GIT_DOMAIN_NAME}_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        nginx_limits $GIT_DOMAIN_NAME '10G'
        nginx_ssl $GIT_DOMAIN_NAME
        nginx_disable_sniffing $GIT_DOMAIN_NAME
        echo '    add_header Strict-Transport-Security max-age=0;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        proxy_pass http://localhost:3000;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    fastcgi_buffers 64 4K;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    error_page 403 /core/templates/403.php;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    error_page 404 /core/templates/404.php;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    location = /robots.txt {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        log_not_found off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '        access_log off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    else
        echo -n '' > /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    fi
    echo 'server {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo "    listen 127.0.0.1:${GIT_ONION_PORT} default_server;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo "    root /var/www/$GIT_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo "    server_name $GIT_DOMAIN_NAME;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    access_log off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo "    error_log /var/log/nginx/${GIT_DOMAIN_NAME}_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    nginx_limits $GIT_DOMAIN_NAME '10G'
    nginx_disable_sniffing $GIT_DOMAIN_NAME
    echo '    add_header Strict-Transport-Security max-age=0;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    location / {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '        proxy_pass http://localhost:3000;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    fastcgi_buffers 64 4K;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    error_page 403 /core/templates/403.php;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    error_page 404 /core/templates/404.php;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    location = /robots.txt {' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '        allow all;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '        log_not_found off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '        access_log off;' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$GIT_DOMAIN_NAME

    configure_php

    create_site_certificate $GIT_DOMAIN_NAME

    nginx_ensite $GIT_DOMAIN_NAME

    if [ ! -d /var/lib/tor ]; then
        echo $'No Tor installation found. Gogs onion site cannot be configured.'
        exit 877367
    fi
    if ! grep -q "hidden_service_gogs" /etc/tor/torrc; then
        echo 'HiddenServiceDir /var/lib/tor/hidden_service_gogs/' >> /etc/tor/torrc
        echo "HiddenServicePort 80 127.0.0.1:${GIT_ONION_PORT}" >> /etc/tor/torrc
        echo "HiddenServicePort 9418 127.0.0.1:9418" >> /etc/tor/torrc
        echo $'Added onion site for Gogs'
    fi

    systemctl restart tor
    wait_for_onion_service 'gogs'

    GIT_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_gogs/hostname)

    systemctl restart php5-fpm
    systemctl restart nginx

    if ! grep -q "Gogs onion domain" /home/$MY_USERNAME/README; then
        echo "Gogs onion domain: ${GIT_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi
    if ! grep -q "Gogs onion domain" $COMPLETION_FILE; then
        echo "Gogs onion domain:${GIT_ONION_HOSTNAME}" >> $COMPLETION_FILE
    fi

    add_ddns_domain $GIT_DOMAIN_NAME

    echo "Gogs domain:$GIT_DOMAIN_NAME" >> $COMPLETION_FILE
    echo 'install_gogs' >> $COMPLETION_FILE
}

function tox_avahi {
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "tox_avahi" $COMPLETION_FILE; then
        return
    fi

    if [ ! -d /etc/avahi ]; then
        echo $'tox_avahi: avahi is not installed'
        exit 87359
    fi

    # install a command to obtain the Tox ID
    cd $INSTALL_DIR
    git_clone $TOXID_REPO $INSTALL_DIR/toxid
    if [ ! -d $INSTALL_DIR/toxid ]; then
        exit 63921
    fi
    cd $INSTALL_DIR/toxid
    make
    if [ ! "$?" = "0" ]; then
        exit 58432
    fi
    make install

    toxavahi

    # publish regularly
    if ! grep -q "toxavahi" /etc/crontab; then
        echo "* *     * * *   root    toxavahi > /dev/null" >> /etc/crontab
    fi

    systemctl restart avahi-daemon

    echo 'tox_avahi' >> $COMPLETION_FILE
}

function install_tox_node {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $INSTALL_DIR/toxcore "toxcore commit" "$TOX_COMMIT" $TOX_REPO

    if grep -Fxq "install_tox_node" $COMPLETION_FILE; then
        return
    fi

    ${PROJECT_NAME}-mesh-install -f tox_node
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install tox node'
        exit 26778
    fi

    TOX_ONION_HOSTNAME=$(add_onion_service tox ${TOX_PORT} ${TOX_PORT})

    if ! grep -q "tox onion domain" $COMPLETION_FILE; then
        echo "tox onion domain:${TOX_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|tox onion domain.*|tox onion domain:${TOX_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi

    systemctl restart tox-bootstrapd.service

    TOX_PUBLIC_KEY=$(cat /var/log/syslog | grep tox | grep "Public Key" | awk -F ' ' '{print $8}' | tail -1)
    if [ ${#TOX_PUBLIC_KEY} -lt 30 ]; then
        echo $'Could not obtain the tox node public key'
        exit 6529
    fi

    # save the public key for later reference
    echo "$TOX_PUBLIC_KEY" > $TOX_BOOTSTRAP_ID_FILE

    configure_firewall_for_tox

    if ! grep -q $"Your Tox node public key is" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo 'Tox' >> /home/$MY_USERNAME/README
        echo '===' >> /home/$MY_USERNAME/README
        echo $"tox onion domain: ${TOX_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Your Tox node public key is: $TOX_PUBLIC_KEY" >> /home/$MY_USERNAME/README
        echo $'In the Toxic client you can connect to it with:' >> /home/$MY_USERNAME/README
        echo "  /connect $DEFAULT_DOMAIN_NAME.local $TOX_PORT $TOX_PUBLIC_KEY" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_tox_node' >> $COMPLETION_FILE
}

function install_tox_client {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $INSTALL_DIR/toxic "Toxic commit" "$TOXIC_COMMIT" $TOXIC_REPO

    if grep -Fxq "install_tox_client" $COMPLETION_FILE; then
        return
    fi

    ${PROJECT_NAME}-mesh-install -f tox_client
    if [ ! "$?" = "0" ]; then       
        echo $'Could not install Tox client'
        exit 67248
    fi

    # initial setup of username
    su -c "echo 'n
/nick $MY_USERNAME
/exit
' | $TOXIC_FILE -d" - $MY_USERNAME

    echo 'install_tox_client' >> $COMPLETION_FILE
}

function install_xmpp {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_xmpp" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install lua-sec lua-bitop
    apt-get -y install prosody prosody-modules mercurial

    if [ ! -d /etc/prosody ]; then
        echo $"ERROR: prosody does not appear to have installed. $CHECK_MESSAGE"
        exit 52
    fi

    # obtain the prosody modules
    cd $INSTALL_DIR
    hg clone https://hg.prosody.im/prosody-modules/ prosody-modules
    if [ ! -d $INSTALL_DIR/prosody-modules/mod_onions ]; then
        echo $'mod_onions prosody module could not be found'
        exit 73254
    fi

    # install the onions module
    cp $INSTALL_DIR/prosody-modules/mod_onions/mod_onions.lua /usr/lib/prosody/modules/mod_onions.lua
    if [ ! -f /usr/lib/prosody/modules/mod_onions.lua ]; then
        echo $'mod_onions.lua could not be copied to the prosody modules directory'
        exit 63952
    fi

    # create a certificate
    if [ ! -f /etc/ssl/certs/xmpp.dhparam ]; then
        ${PROJECT_NAME}-addcert -h xmpp --dhkey $DH_KEYLENGTH
        check_certificates xmpp
    fi
    chown prosody:prosody /etc/ssl/private/xmpp.key
    chown prosody:prosody /etc/ssl/certs/xmpp.*
    cp -a /etc/prosody/conf.avail/example.com.cfg.lua /etc/prosody/conf.avail/xmpp.cfg.lua

    sed -i 's|/etc/prosody/certs/example.com.key|/etc/ssl/private/xmpp.key|g' /etc/prosody/conf.avail/xmpp.cfg.lua
    sed -i 's|/etc/prosody/certs/example.com.crt|/etc/ssl/certs/xmpp.crt|g' /etc/prosody/conf.avail/xmpp.cfg.lua
    if ! grep -q "xmpp.dhparam" /etc/prosody/conf.avail/xmpp.cfg.lua; then
        sed -i '/certificate =/a\        dhparam = "/etc/ssl/certs/xmpp.dhparam";' /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    if ! grep -q 'options = {"no_sslv2", "no_sslv3" }' /etc/prosody/conf.avail/xmpp.cfg.lua; then
        sed -i '/certificate =/a\        options = {"no_sslv2", "no_sslv3" };' /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    if ! grep -q 'ciphers =' /etc/prosody/conf.avail/xmpp.cfg.lua; then
        sed -i "/certificate =/a\        ciphers = $XMPP_CIPHERS;" /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    if ! grep -q 'depth = "1";' /etc/prosody/conf.avail/xmpp.cfg.lua; then
        sed -i '/certificate =/a\        depth = "1";' /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    if ! grep -q 'curve =' /etc/prosody/conf.avail/xmpp.cfg.lua; then
        sed -i "/certificate =/a\        curve = $XMPP_ECC_CURVE;" /etc/prosody/conf.avail/xmpp.cfg.lua
    fi

    sed -i "s/example.com/$DEFAULT_DOMAIN_NAME/g" /etc/prosody/conf.avail/xmpp.cfg.lua
    sed -i 's/enabled = false -- Remove this line to enable this host//g' /etc/prosody/conf.avail/xmpp.cfg.lua

    if ! grep -q "modules_enabled" /etc/prosody/conf.avail/xmpp.cfg.lua; then
        echo '' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo 'modules_enabled = {' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '  "bosh"; -- Enable mod_bosh' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '  "tls"; -- Enable mod_tls' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '  "saslauth"; -- Enable mod_saslauth' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '  "onions"; -- Enable chat via onion service' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '}' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo 'c2s_require_encryption = true' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo 's2s_require_encryption = true' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo 'allow_unencrypted_plain_auth = false' >> /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    ln -sf /etc/prosody/conf.avail/xmpp.cfg.lua /etc/prosody/conf.d/xmpp.cfg.lua

    sed -i 's|/etc/prosody/certs/localhost.key|/etc/ssl/private/xmpp.key|g' /etc/prosody/prosody.cfg.lua
    sed -i 's|/etc/prosody/certs/localhost.crt|/etc/ssl/certs/xmpp.crt|g' /etc/prosody/prosody.cfg.lua
    if ! grep -q "xmpp.dhparam" /etc/prosody/prosody.cfg.lua; then
        sed -i '/certificate =/a\    dhparam = "/etc/ssl/certs/xmpp.dhparam";' /etc/prosody/prosody.cfg.lua
    fi
    if ! grep -q 'options = {"no_sslv2", "no_sslv3" }' /etc/prosody/prosody.cfg.lua; then
        sed -i '/certificate =/a\    options = {"no_sslv2", "no_sslv3" };' /etc/prosody/prosody.cfg.lua
    fi
    if ! grep -q 'ciphers =' /etc/prosody/prosody.cfg.lua; then
        sed -i "/certificate =/a\    ciphers = $XMPP_CIPHERS;" /etc/prosody/prosody.cfg.lua
    fi
    if ! grep -q 'depth = "1";' /etc/prosody/prosody.cfg.lua; then
        sed -i '/certificate =/a\    depth = "1";' /etc/prosody/prosody.cfg.lua
    fi
    if ! grep -q 'curve =' /etc/prosody/prosody.cfg.lua; then
        sed -i "/certificate =/a\    curve = $XMPP_ECC_CURVE;" /etc/prosody/prosody.cfg.lua
    fi
    sed -i 's/c2s_require_encryption = false/c2s_require_encryption = true/g' /etc/prosody/prosody.cfg.lua
    if ! grep -q "s2s_require_encryption" /etc/prosody/prosody.cfg.lua; then
        sed -i '/c2s_require_encryption/a\s2s_require_encryption = true' /etc/prosody/prosody.cfg.lua
    fi
    if ! grep -q "allow_unencrypted_plain_auth" /etc/prosody/prosody.cfg.lua; then
        echo 'allow_unencrypted_plain_auth = false' >> /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    sed -i 's/--"bosh";/"bosh";/g' /etc/prosody/prosody.cfg.lua
    sed -i 's/authentication = "internal_plain"/authentication = "internal_hashed"/g' /etc/prosody/prosody.cfg.lua
    sed -i 's/enabled = false -- Remove this line to enable this host//g' /etc/prosody/prosody.cfg.lua
    sed -i 's|key = "/etc/prosody/certs/example.com.key"|key = "/etc/ssl/private/xmpp.key"|g' /etc/prosody/prosody.cfg.lua
    sed -i 's|certificate = "/etc/prosody/certs/example.com.crt"|certificate = "/etc/ssl/certs/xmpp.crt"|g' /etc/prosody/prosody.cfg.lua
    sed -i "s/example.com/$DEFAULT_DOMAIN_NAME/g" /etc/prosody/prosody.cfg.lua

    systemctl restart prosody
    touch /home/$MY_USERNAME/README

    if [ ! -d /var/lib/tor ]; then
        echo $'No Tor installation found. XMPP onion site cannot be configured.'
        exit 877367
    fi
    if ! grep -q "hidden_service_xmpp" /etc/tor/torrc; then
        echo 'HiddenServiceDir /var/lib/tor/hidden_service_xmpp/' >> /etc/tor/torrc
        echo "HiddenServicePort 5222 127.0.0.1:5222" >> /etc/tor/torrc
        echo "HiddenServicePort 5269 127.0.0.1:5269" >> /etc/tor/torrc
        echo $'Added onion site for XMPP chat'
    fi

    systemctl restart tor
    wait_for_onion_service 'xmpp'

    if [ ! -f /var/lib/tor/hidden_service_xmpp/hostname ]; then
        echo $'XMPP onion site hostname not found'
        exit 65349
    fi
    XMPP_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_xmpp/hostname)
    if ! grep -q "${XMPP_ONION_HOSTNAME}" /etc/prosody/conf.avail/xmpp.cfg.lua; then
        echo '' >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo "VirtualHost \"${XMPP_ONION_HOSTNAME}\"" >> /etc/prosody/conf.avail/xmpp.cfg.lua
        echo '    modules_enabled = { "onions" };' >> /etc/prosody/conf.avail/xmpp.cfg.lua
    fi
    if ! grep -q "XMPP onion domain" $COMPLETION_FILE; then
        echo "XMPP onion domain:${XMPP_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|XMPP onion domain.*|XMPP onion domain:${XMPP_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi

    if ! grep -q "Your XMPP password is" /home/$MY_USERNAME/README; then
        if [ ${#XMPP_PASSWORD} -lt 8 ]; then
            if [ -f $IMAGE_PASSWORD_FILE ]; then
                XMPP_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
            else
                XMPP_PASSWORD="$(openssl rand -base64 10 | cut -c1-8)"
            fi
        fi
        prosodyctl register $MY_USERNAME $DEFAULT_DOMAIN_NAME $XMPP_PASSWORD
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'XMPP' >> /home/$MY_USERNAME/README
        echo '====' >> /home/$MY_USERNAME/README
        echo $"XMPP onion domain: ${XMPP_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Your XMPP password is: $XMPP_PASSWORD" >> /home/$MY_USERNAME/README
        echo $'You can change it with: ' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo "    prosodyctl passwd $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi
    echo 'install_xmpp' >> $COMPLETION_FILE
}

function install_xmpp_client {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_xmpp_client" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install profanity

    XMPP_CLIENT_DIR=/home/$MY_USERNAME/.local/share/profanity
    XMPP_CLIENT_ACCOUNTS=$XMPP_CLIENT_DIR/accounts
    if [ ! -d $XMPP_CLIENT_DIR ]; then
        mkdir -p $XMPP_CLIENT_DIR
    fi

    if [[ $ONION_ONLY == 'no' ]]; then
        echo "[${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}]" > $XMPP_CLIENT_ACCOUNTS
        echo 'enabled=true' >> $XMPP_CLIENT_ACCOUNTS
        echo "jid=${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo 'resource=profanity' >> $XMPP_CLIENT_ACCOUNTS
        echo "muc.service=conference.${DEFAULT_DOMAIN_NAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo "muc.nick=${MY_USERNAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo 'presence.last=online' >> $XMPP_CLIENT_ACCOUNTS
        echo 'presence.login=online' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.online=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.chat=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.away=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.xa=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.dnd=0' >> $XMPP_CLIENT_ACCOUNTS
        if [ ${#XMPP_PASSWORD} -gt 2 ]; then
            echo "password=$XMPP_PASSWORD" >> $XMPP_CLIENT_ACCOUNTS
        fi
    fi

    if [ -f /var/lib/tor/hidden_service_xmpp/hostname ]; then
        XMPP_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_xmpp/hostname)
        echo "[${MY_USERNAME}@${XMPP_ONION_HOSTNAME}]" >> $XMPP_CLIENT_ACCOUNTS
        if [[ $ONION_ONLY == 'no' ]]; then
            echo 'enabled=false' >> $XMPP_CLIENT_ACCOUNTS
        else
            echo 'enabled=true' >> $XMPP_CLIENT_ACCOUNTS
        fi
        echo "jid=${MY_USERNAME}@${XMPP_ONION_HOSTNAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo 'resource=profanity' >> $XMPP_CLIENT_ACCOUNTS
        echo "muc.service=conference.${XMPP_ONION_HOSTNAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo "muc.nick=${MY_USERNAME}" >> $XMPP_CLIENT_ACCOUNTS
        echo 'presence.last=online' >> $XMPP_CLIENT_ACCOUNTS
        echo 'presence.login=online' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.online=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.chat=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.away=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.xa=0' >> $XMPP_CLIENT_ACCOUNTS
        echo 'priority.dnd=0' >> $XMPP_CLIENT_ACCOUNTS
        if [ ${#XMPP_PASSWORD} -gt 2 ]; then
            echo "password=$XMPP_PASSWORD" >> $XMPP_CLIENT_ACCOUNTS
        fi
    fi

    if [ ! -d /home/$MY_USERNAME/.config/profanity ]; then
        mkdir /home/$MY_USERNAME/.config/profanity
    fi
    echo '[connection]' > /home/$MY_USERNAME/.config/profanity/profrc
    echo "account=${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}" >> /home/$MY_USERNAME/.config/profanity/profrc

    chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.local
    chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.config

    echo 'install_xmpp_client' >> $COMPLETION_FILE
}

function install_watchdog_script {
    if grep -Fxq "install_watchdog_script" $COMPLETION_FILE; then
        return
    fi
    echo '#!/bin/bash' > /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo 'LOGFILE=/var/log/keepon.log' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo 'CURRENT_DATE=$(date)' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    # application specific stuff is added later
    chmod +x /usr/bin/$WATCHDOG_SCRIPT_NAME

    if ! grep -q "/usr/bin/$WATCHDOG_SCRIPT_NAME" /etc/crontab; then
        echo "* *     * * *   root    /usr/bin/$WATCHDOG_SCRIPT_NAME" >> /etc/crontab
    fi

    echo 'install_watchdog_script' >> $COMPLETION_FILE
}

function install_irc_client {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_irc_client" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install irssi

    if [ ! -d /home/$MY_USERNAME/.irssi ]; then
        mkdir /home/$MY_USERNAME/.irssi
    fi

    echo 'servers = (' > /home/$MY_USERNAME/.irssi/config
    echo '  {' >> /home/$MY_USERNAME/.irssi/config
    echo '    address = "chat.freenode.net";' >> /home/$MY_USERNAME/.irssi/config
    echo '    chatnet = "Freenode";' >> /home/$MY_USERNAME/.irssi/config
    echo '    port = "6667";' >> /home/$MY_USERNAME/.irssi/config
    echo '    autoconnect = "no";' >> /home/$MY_USERNAME/.irssi/config
    echo '  },' >> /home/$MY_USERNAME/.irssi/config
    echo '  {' >> /home/$MY_USERNAME/.irssi/config
    echo '    address = "irc.oftc.net";' >> /home/$MY_USERNAME/.irssi/config
    echo '    chatnet = "OFTC";' >> /home/$MY_USERNAME/.irssi/config
    echo '    port = "6667";' >> /home/$MY_USERNAME/.irssi/config
    echo '    autoconnect = "yes";' >> /home/$MY_USERNAME/.irssi/config
    echo '  },' >> /home/$MY_USERNAME/.irssi/config
    echo '  {' >> /home/$MY_USERNAME/.irssi/config
    if [[ $ONION_ONLY == 'no' ]]; then
        echo "    address = \"${DEFAULT_DOMAIN_NAME}\";" >> /home/$MY_USERNAME/.irssi/config
        echo "    port = \"${IRC_PORT}\";" >> /home/$MY_USERNAME/.irssi/config
        echo '    use_ssl = "yes";' >> /home/$MY_USERNAME/.irssi/config
    else
        IRC_ONION_HOSTNAME=$(cat $COMPLETION_FILE | grep "IRC onion domain" | awk -F ':' '{print $2}')
        echo "    address = \"${IRC_ONION_HOSTNAME}\";" >> /home/$MY_USERNAME/.irssi/config
        echo "    port = \"${IRC_ONION_PORT}\";" >> /home/$MY_USERNAME/.irssi/config 
        echo '    use_ssl = "no";' >> /home/$MY_USERNAME/.irssi/config
        sed -i "s/;Ports =.*/Ports = $IRC_PORT, $IRC_ONION_PORT/1" /etc/ngircd/ngircd.conf
        systemctl restart ngircd
    fi
    echo '    chatnet = "Freedombone";' >> /home/$MY_USERNAME/.irssi/config
    echo '    ssl_verify = "no";' >> /home/$MY_USERNAME/.irssi/config
    echo '    autoconnect = "yes";' >> /home/$MY_USERNAME/.irssi/config
    if [ $IRC_PASSWORD ]; then
        echo "    password = \"${IRC_PASSWORD}\";" >> /home/$MY_USERNAME/.irssi/config
    fi
    echo '  }' >> /home/$MY_USERNAME/.irssi/config
    echo ');' >> /home/$MY_USERNAME/.irssi/config
    echo '' >> /home/$MY_USERNAME/.irssi/config
    echo 'chatnets = {' >> /home/$MY_USERNAME/.irssi/config
    echo '  Freedombone = {' >> /home/$MY_USERNAME/.irssi/config
    echo '    type = "IRC";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_kicks = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_msgs = "4";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_whois = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '  };' >> /home/$MY_USERNAME/.irssi/config
    echo '  Freenode = {' >> /home/$MY_USERNAME/.irssi/config
    echo '    type = "IRC";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_kicks = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_msgs = "4";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_whois = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '  };' >> /home/$MY_USERNAME/.irssi/config
    echo '  OFTC = {' >> /home/$MY_USERNAME/.irssi/config
    echo '    type = "IRC";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_kicks = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_msgs = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '    max_whois = "1";' >> /home/$MY_USERNAME/.irssi/config
    echo '  };' >> /home/$MY_USERNAME/.irssi/config
    echo '};' >> /home/$MY_USERNAME/.irssi/config
    echo '' >> /home/$MY_USERNAME/.irssi/config
    echo 'channels = (' >> /home/$MY_USERNAME/.irssi/config
    echo '  { name = "#freedombone"; chatnet = "Freedombone"; autojoin = "Yes"; },' >> /home/$MY_USERNAME/.irssi/config
    echo ');' >> /home/$MY_USERNAME/.irssi/config
    echo '' >> /home/$MY_USERNAME/.irssi/config
    echo 'settings = {' >> /home/$MY_USERNAME/.irssi/config
    echo "  core = { real_name = \"$MY_NAME\"; user_name = \"$MY_USERNAME\"; nick = \"$MY_USERNAME\"; };" >> /home/$MY_USERNAME/.irssi/config
    echo '  "fe-text" = { actlist_sort = "refnum"; };' >> /home/$MY_USERNAME/.irssi/config
    echo '};' >> /home/$MY_USERNAME/.irssi/config
    echo 'ignores = ( { level = "CTCPS"; } );' >> /home/$MY_USERNAME/.irssi/config

    chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.irssi

    echo 'install_irc_client' >> $COMPLETION_FILE
}

function install_irc_server {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if grep -Fxq "install_irc_server" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install ngircd

    if [ ! -d /etc/ngircd ]; then
        echo $"ERROR: ngircd does not appear to have installed. $CHECK_MESSAGE"
        exit 53
    fi

    if [ ! -f /etc/ssl/certs/ngircd.dhparam ]; then
        ${PROJECT_NAME}-addcert -h ngircd --dhkey $DH_KEYLENGTH
        check_certificates ngircd
    fi

    DEFAULTDOMAIN=$DEFAULT_DOMAIN_NAME
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        DEFAULTDOMAIN="${DEFAULT_DOMAIN_NAME}.local"
    fi

    # create a login password if needed
    if [ ! $IRC_PASSWORD ]; then
        IRC_PASSWORD="$(openssl rand -base64 32 | cut -c1-10)"
    fi

    echo '**************************************************' > /etc/ngircd/motd
    echo $'*           F R E E D O M B O N E   I R C        *' >> /etc/ngircd/motd
    echo '*                                                *' >> /etc/ngircd/motd
    echo $'*               Freedom in the Cloud             *' >> /etc/ngircd/motd
    echo '**************************************************' >> /etc/ngircd/motd
    sed -i 's|MotdFile = /etc/ngircd/ngircd.motd|MotdFile = /etc/ngircd/motd|g' /etc/ngircd/ngircd.conf
    sed -i "s/irc@irc.example.com/$MY_EMAIL_ADDRESS/g" /etc/ngircd/ngircd.conf
    sed -i "s/irc.example.net/$DEFAULTDOMAIN/g" /etc/ngircd/ngircd.conf
    sed -i "s|Yet another IRC Server running on Debian GNU/Linux|IRC Server of $DEFAULTDOMAIN|g" /etc/ngircd/ngircd.conf
    sed -i 's/;Password = wealllikedebian/Password =/g' /etc/ngircd/ngircd.conf
    sed -i 's|;CertFile = /etc/ssl/certs/server.crt|CertFile = /etc/ssl/certs/ngircd.crt|g' /etc/ngircd/ngircd.conf
    sed -i 's|;DHFile = /etc/ngircd/dhparams.pem|DHFile = /etc/ssl/certs/ngircd.dhparam|g' /etc/ngircd/ngircd.conf
    sed -i 's|;KeyFile = /etc/ssl/private/server.key|KeyFile = /etc/ssl/private/ngircd.key|g' /etc/ngircd/ngircd.conf
    sed -i "s/;Ports =.*/Ports = $IRC_PORT/2" /etc/ngircd/ngircd.conf
    if [[ $ONION_ONLY != 'yes' ]]; then
        sed -i "s/;Ports =.*/;Ports = $IRC_PORT, $IRC_ONION_PORT/1" /etc/ngircd/ngircd.conf
    else
        sed -i "s/;Ports =.*/Ports = $IRC_PORT, $IRC_ONION_PORT/1" /etc/ngircd/ngircd.conf
    fi
    sed -i "s/;Name = #ngircd/Name = #${PROJECT_NAME}/g" /etc/ngircd/ngircd.conf
    sed -i "s/;Topic = Our ngircd testing channel/Topic = ${PROJECT_NAME} chat channel/g" /etc/ngircd/ngircd.conf
    sed -i 's/;MaxUsers = 23/MaxUsers = 23/g' /etc/ngircd/ngircd.conf
    sed -i "s|;KeyFile = /etc/ngircd/#chan.key|KeyFile = /etc/ngircd/#${PROJECT_NAME}.key|g" /etc/ngircd/ngircd.conf
    sed -i "s/;CloakHost = cloaked.host/CloakHost = ${PROJECT_NAME}/g" /etc/ngircd/ngircd.conf
    IRC_SALT="$(openssl rand -base64 32 | cut -c1-30)"
    if [ -f $IMAGE_PASSWORD_FILE ]; then
        IRC_OPERATOR_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
    else
        IRC_OPERATOR_PASSWORD="$(openssl rand -base64 10 | cut -c1-8)"
    fi
    sed -i "s|;CloakHostSalt = abcdefghijklmnopqrstuvwxyz|CloakHostSalt = $IRC_SALT|g" /etc/ngircd/ngircd.conf
    sed -i 's/;ConnectIPv4 = yes/ConnectIPv4 = yes/g' /etc/ngircd/ngircd.conf
    sed -i 's/;MorePrivacy = no/MorePrivacy = yes/g' /etc/ngircd/ngircd.conf
    sed -i 's/;RequireAuthPing = no/RequireAuthPing = no/g' /etc/ngircd/ngircd.conf
    sed -i "s/;Name = TheOper/Name = $MY_USERNAME/g" /etc/ngircd/ngircd.conf
    sed -i "s/;Password = ThePwd/Password = $IRC_OPERATOR_PASSWORD/g" /etc/ngircd/ngircd.conf
    sed -i 's|;Listen =.*|Listen = 0.0.0.0,0.0.0.0:9050,127.0.0.1,127.0.0.1:9050|g' /etc/ngircd/ngircd.conf
    if [ $IRC_PASSWORD ]; then
        sed -i "0,/RE/s/Password =.*/Password =$IRC_PASSWORD/" /etc/ngircd/ngircd.conf
    fi
    # If we are on a mesh then DNS is not available
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        sed -i "s/;DNS =.*/DNS = no/g" /etc/ngircd/ngircd.conf
    fi
    # upgrade a cypher
    sed -i 's|SECURE128|SECURE256|g' /etc/ngircd/ngircd.conf
    mkdir /var/run/ircd
    chown -R irc:irc /var/run/ircd
    mkdir /var/run/ngircd
    touch /var/run/ngircd/ngircd.pid
    chown -R irc:irc /var/run/ngircd

    IRC_ONION_HOSTNAME=$(add_onion_service irc ${IRC_PORT} ${IRC_ONION_PORT})
    if ! grep -q $"IRC onion domain" $COMPLETION_FILE; then
        echo "IRC onion domain:$IRC_ONION_HOSTNAME" >> $COMPLETION_FILE
    fi

    systemctl stop ngircd
    if [ ! -f /lib/systemd/system/ngircd.service ]; then
        echo $'No systemd daemon found for ngircd'
        exit 82528
    fi
    
    if [[ $ONION_ONLY == 'no' ]]; then
        sed -i 's|ExecStart.*|ExecStart=/usr/sbin/ngircd|g' /lib/systemd/system/ngircd.service
    else
        sed -i 's|ExecStart.*|ExecStart=/usr/bin/torify /usr/sbin/ngircd|g' /lib/systemd/system/ngircd.service
    fi  
    systemctl daemon-reload
    systemctl start ngircd

    # keep the daemon running
    echo '' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo '# keep irc daemon running' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo 'IRC_RUNNING=$(pgrep ngircd > /dev/null && echo Running)' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo 'if [ ! $IRC_RUNNING ]; then' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo '  systemctl start ngircd' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo '  echo -n $CURRENT_DATE >> $LOGFILE' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo '  echo " IRC daemon restarted" >> $LOGFILE' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
    echo 'fi' >> /usr/bin/$WATCHDOG_SCRIPT_NAME

    if ! grep -q $"IRC Server" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'IRC Server' >> /home/$MY_USERNAME/README
        echo '==========' >> /home/$MY_USERNAME/README
        echo $'To connect to your IRC server in irssi:' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        if [[ $ONION_ONLY != 'yes' ]]; then
            echo "  irssi" >> /home/$MY_USERNAME/README
            echo "  /server add -auto -ssl $DEFAULTDOMAIN $IRC_PORT" >> /home/$MY_USERNAME/README
            echo "  /connect $DEFAULT_DOMAIN_NAME" >> /home/$MY_USERNAME/README
        else
            echo "  usetorwith irssi" >> /home/$MY_USERNAME/README
            echo "  /server add -auto $IRC_ONION_HOSTNAME $IRC_PORT" >> /home/$MY_USERNAME/README
            echo "  /connect $IRC_ONION_HOSTNAME" >> /home/$MY_USERNAME/README
        fi
        echo "  /join #${PROJECT_NAME}" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_irc_server' >> $COMPLETION_FILE
}

function get_wiki_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "Wiki password" /home/$MY_USERNAME/README; then
            WIKI_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "Wiki password:" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function install_wiki {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MASH" ]]; then
        return
    fi
    if grep -Fxq "install_wiki" $COMPLETION_FILE; then
        return
    fi
    if [ ! $WIKI_DOMAIN_NAME ]; then
        return
    fi
    apt-get -y install dokuwiki
    apt-get -y remove --purge apache*
    if [ -d /etc/apache2 ]; then
        rm -rf /etc/apache2
        echo $'Removed Apache installation after Dokuwiki install'
    fi

    if [ ! -d /var/www/$WIKI_DOMAIN_NAME ]; then
        mkdir /var/www/$WIKI_DOMAIN_NAME
    fi
    if [ -d /var/www/$WIKI_DOMAIN_NAME/htdocs ]; then
        rm -rf /var/www/$WIKI_DOMAIN_NAME/htdocs
    fi

    ln -s /usr/share/dokuwiki /var/www/$WIKI_DOMAIN_NAME/htdocs

    mkdir /var/lib/dokuwiki/custom
    cp /etc/dokuwiki/local.php.dist /var/lib/dokuwiki/custom/local.php
    ln -s /var/lib/dokuwiki/custom/local.php /etc/dokuwiki/local.php

    chown www-data /var/lib/dokuwiki/custom
    chown www-data /var/lib/dokuwiki/custom/local.php
    chown -R www-data /etc/dokuwiki
    chown -R www-data /usr/share/dokuwiki/lib/
    chmod 600 /var/lib/dokuwiki/custom/local.php
    chmod -R 755 /usr/share/dokuwiki/lib

    sed -i 's|//$conf|$conf|g' /var/lib/dokuwiki/custom/local.php
    sed -i "s|joe|$MY_USERNAME|g" /var/lib/dokuwiki/custom/local.php

    sed -i "s|Debian DokuWiki|$WIKI_TITLE|g" /etc/dokuwiki/local.php

    # set the admin user
    sed -i "s/@admin/$MY_USERNAME/g" /etc/dokuwiki/local.php

    # disallow registration of new users
    if ! grep -q "disableactions" /etc/dokuwiki/local.php; then
        echo "\$conf['disableactions'] = 'register';" >> /etc/dokuwiki/local.php
    fi
    if ! grep -q "disableactions" /var/lib/dokuwiki/custom/local.php; then
        echo "\$conf['disableactions'] = 'register';" >> /var/lib/dokuwiki/custom/local.php
    fi

    if ! grep -q "authtype" /var/lib/dokuwiki/custom/local.php; then
        echo "\$conf['authtype'] = 'authplain';" >> /var/lib/dokuwiki/custom/local.php
    fi
    if ! grep -q "authtype" /etc/dokuwiki/local.php; then
        echo "\$conf['authtype'] = 'authplain';" >> /etc/dokuwiki/local.php
    fi

    get_wiki_admin_password
    if [ ! $WIKI_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            WIKI_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            WIKI_ADMIN_PASSWORD="$(openssl rand -base64 18 | cut -c1-16)"
        fi
    fi
    HASHED_WIKI_PASSWORD=$(echo -n "$WIKI_ADMIN_PASSWORD" | md5sum | awk -F ' ' '{print $1}')
    echo -n "$MY_USERNAME:$HASHED_WIKI_PASSWORD:$MY_NAME:$MY_EMAIL:admin,user,upload" > /var/lib/dokuwiki/acl/users.auth.php
    chmod 640 /var/lib/dokuwiki/acl/users.auth.php

    if ! grep -q "video/ogg" /etc/dokuwiki/mime.conf; then
        echo 'ogv     video/ogg' >> /etc/dokuwiki/mime.conf
    fi
    if ! grep -q "video/mp4" /etc/dokuwiki/mime.conf; then
        echo 'mp4     video/mp4' >> /etc/dokuwiki/mime.conf
    fi
    if ! grep -q "video/webm" /etc/dokuwiki/mime.conf; then
        echo 'webm    video/webm' >> /etc/dokuwiki/mime.conf
    fi

    WIKI_ONION_HOSTNAME=$(add_onion_service wiki 80 ${WIKI_ONION_PORT})

    if [[ $ONION_ONLY == "no" ]]; then
        echo 'server {' > /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    listen 80;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    root /var/www/$WIKI_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    server_name $WIKI_DOMAIN_NAME;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${WIKI_DOMAIN_NAME}_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        nginx_disable_sniffing $WIKI_DOMAIN_NAME
        nginx_limits $WIKI_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    #deny access to store' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /store {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '      deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo 'server {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    listen 443 ssl;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    root /var/www/$WIKI_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    server_name $WIKI_DOMAIN_NAME;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${WIKI_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        nginx_limits $WIKI_DOMAIN_NAME
        nginx_ssl $WIKI_DOMAIN_NAME
        nginx_disable_sniffing $WIKI_DOMAIN_NAME
        echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    #deny access to store' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /store {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '      deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    else
        echo -n '' > /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    fi
    echo 'server {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "    listen 127.0.0.1:${WIKI_ONION_PORT} default_server;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "    root /var/www/$WIKI_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "    server_name $WIKI_ONION_HOSTNAME;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    access_log off;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "    error_log /var/log/nginx/${WIKI_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    charset utf-8;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    nginx_limits $WIKI_DOMAIN_NAME
    nginx_disable_sniffing $WIKI_DOMAIN_NAME
    echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location / {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        allow all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        expires 30d;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # block these file types' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # or a unix socket' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~ /\. {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    #deny access to store' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~ /store {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '      deny all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '      deny  all;' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME

    create_site_certificate $WIKI_DOMAIN_NAME

    configure_php

    nginx_ensite $WIKI_DOMAIN_NAME

    systemctl restart php5-fpm
    systemctl restart nginx

    echo "Wiki onion domain:${WIKI_ONION_HOSTNAME}" >> $COMPLETION_FILE

    add_ddns_domain $WIKI_DOMAIN_NAME

    # add some post-install instructions
    if ! grep -q $"Wiki password" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Wiki' >> /home/$MY_USERNAME/README
        echo '====' >> /home/$MY_USERNAME/README
        echo $"Wiki onion domain: ${WIKI_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Wiki username: $MY_USERNAME" >> /home/$MY_USERNAME/README
        echo $"Wiki password: $WIKI_ADMIN_PASSWORD" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Once you have set up the wiki then remove the install file:' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo "  rm /var/www/$WIKI_DOMAIN_NAME/htdocs/install.php" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo "Wiki domain:$WIKI_DOMAIN_NAME" >> $COMPLETION_FILE
    echo 'install_wiki' >> $COMPLETION_FILE
}

function get_blog_admin_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "Your blog password is" /home/$MY_USERNAME/README; then
            FULLBLOG_ADMIN_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "Your blog password is" | awk -F ':' '{print $2}' | sed 's/^ *//')
        fi
    fi
}

function install_blog {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! $FULLBLOG_DOMAIN_NAME ]; then
        echo $'The blog domain name was not specified'
        exit 5062
    fi

    # update to the next commit
    set_repo_commit /var/www/$FULLBLOG_DOMAIN_NAME/htdocs "Blog commit" "$FULLBLOG_COMMIT" $FULLBLOG_REPO

    if grep -Fxq "install_blog" $COMPLETION_FILE; then
        return
    fi

    # for the avatar changing command
    apt-get -y install imagemagick

    if [ ! -d /var/www/$FULLBLOG_DOMAIN_NAME ]; then
        mkdir /var/www/$FULLBLOG_DOMAIN_NAME
    fi

    cd /var/www/$FULLBLOG_DOMAIN_NAME
    git_clone $FULLBLOG_REPO htdocs
    cd htdocs
    git checkout $FULLBLOG_COMMIT -b $FULLBLOG_COMMIT
    if ! grep -q "Blog commit" $COMPLETION_FILE; then
        echo "Blog commit:$FULLBLOG_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/Blog commit.*/Blog commit:$FULLBLOG_COMMIT/g" $COMPLETION_FILE
    fi
    cd /var/www/$FULLBLOG_DOMAIN_NAME

    chown -R www-data:www-data /var/www/$FULLBLOG_DOMAIN_NAME/htdocs

    if [[ $ONION_ONLY == "no" ]]; then
        echo 'server {' > /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    listen 80;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    root /var/www/$FULLBLOG_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    server_name $FULLBLOG_DOMAIN_NAME;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${FULLBLOG_DOMAIN_NAME}_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        nginx_limits $FULLBLOG_DOMAIN_NAME
        nginx_disable_sniffing $FULLBLOG_DOMAIN_NAME
        echo '    # Always redirect the login page to https' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location /login {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        rewrite ^ https://$server_name$request_uri?;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    #deny access to store' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /store {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '      deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo 'server {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    listen 443 ssl;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    root /var/www/$FULLBLOG_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    server_name $FULLBLOG_DOMAIN_NAME;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${FULLBLOG_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        nginx_limits $FULLBLOG_DOMAIN_NAME
        nginx_ssl $FULLBLOG_DOMAIN_NAME
        nginx_disable_sniffing $FULLBLOG_DOMAIN_NAME
        echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    #deny access to store' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /store {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '      deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    else
        echo -n '' > /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    fi
    echo 'server {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "    listen 127.0.0.1:${FULLBLOG_ONION_PORT} default_server;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "    root /var/www/$FULLBLOG_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "    server_name $FULLBLOG_DOMAIN_NAME;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    access_log off;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "    error_log /var/log/nginx/${FULLBLOG_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    charset utf-8;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    nginx_limits $FULLBLOG_DOMAIN_NAME
    nginx_disable_sniffing $FULLBLOG_DOMAIN_NAME
    echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location / {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        allow all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        expires 30d;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # block these file types' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # or a unix socket' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~ /\. {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    #deny access to store' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~ /store {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '      deny all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '      deny  all;' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$FULLBLOG_DOMAIN_NAME

    create_site_certificate $FULLBLOG_DOMAIN_NAME

    configure_php

    # blog settings
    cp /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini.example /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i "s|site.url.*|site.url = '/'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i "s|blog.title.*|blog.title = '$MY_BLOG_TITLE'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i "s|blog.tagline.*|blog.tagline = '$MY_BLOG_SUBTITLE'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i 's|timezone.*|timezone = "Europe/London"|g' /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i "s|Your name|$MY_NAME|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini

    # set social networks
    if grep -q "social.hubzilla" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini; then
        sed -i "s|;social.hubzilla|social.hubzilla|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
        sed -i "s|social.hubzilla.*|social.hubzilla = \"$HUBZILLA_DOMAIN_NAME\"|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    fi
    if grep -q "social.gnusocial" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini; then
        sed -i "s|;social.gnusocial|social.gnusocial|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
        sed -i "s|social.gnusocial.*|social.gnusocial = \"$MICROBLOG_DOMAIN_NAME\"|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    fi

    # clear proprietary social network strings
    sed -i 's|social.facebook.*|social.facebook = ""|g' /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i 's|social.twitter.*|social.twitter = ""|g' /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
    sed -i 's|social.google.*|social.google = ""|g' /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini

    # create a user password
    get_blog_admin_password
    if [ ! $FULLBLOG_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            FULLBLOG_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            FULLBLOG_ADMIN_PASSWORD="$(openssl rand -base64 18 | cut -c1-16)"
        fi
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'HTMLy Blog' >> /home/$MY_USERNAME/README
        echo '==========' >> /home/$MY_USERNAME/README
        echo $"Your blog username: $MY_USERNAME" >> /home/$MY_USERNAME/README
        echo $"Your blog password is: $FULLBLOG_ADMIN_PASSWORD" >> /home/$MY_USERNAME/README
        if [[ $ONION_ONLY == 'no' ]]; then
            echo $"Log into your blog at https://$FULLBLOG_DOMAIN_NAME/login" >> /home/$MY_USERNAME/README
        fi
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    # create a user
    echo ';Password' > /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/users/$MY_USERNAME.ini
    echo "password = '$FULLBLOG_ADMIN_PASSWORD'" >> /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/users/$MY_USERNAME.ini
    echo 'encryption = clear' >> /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/users/$MY_USERNAME.ini
    echo ';Role' >> /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/users/$MY_USERNAME.ini
    echo 'role = admin' >> /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/users/$MY_USERNAME.ini

    nginx_ensite $FULLBLOG_DOMAIN_NAME

    FULLBLOG_ONION_HOSTNAME=$(add_onion_service blog 80 ${FULLBLOG_ONION_PORT})

    systemctl restart php5-fpm
    systemctl restart nginx

    if ! grep -q "Blog onion domain" /home/$MY_USERNAME/README; then
        echo $"Blog onion domain: ${FULLBLOG_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Log into your blog at https://${FULLBLOG_ONION_HOSTNAME}/login" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi
    echo "Blog onion domain:${FULLBLOG_ONION_HOSTNAME}" >> $COMPLETION_FILE

    add_ddns_domain $FULLBLOG_DOMAIN_NAME

    echo 'install_blog' >> $COMPLETION_FILE
}

function install_rss_reader {
    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $RSS_READER_PATH "RSS reader commit" "$RSS_READER_COMMIT" $RSS_READER_REPO

    if grep -Fxq "install_rss_reader" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install php-gettext php5-curl php5-gd php5-mysql git curl php-xml-parser

    if [ ! -d /etc/share ]; then
        mkdir /etc/share
    fi
    cd /etc/share
    git_clone $RSS_READER_REPO tt-rss
    if [ ! -d $RSS_READER_PATH ]; then
        echo $'Could not clone RSS reader repo'
        exit 52925
    fi
    cd $RSS_READER_PATH
    git checkout $RSS_READER_COMMIT -b $RSS_READER_COMMIT
    if ! grep -q "RSS reader commit" $COMPLETION_FILE; then
        echo "RSS reader commit:$RSS_READER_COMMIT" >> $COMPLETION_FILE
    fi

    install_mariadb
    get_mariadb_password
    repair_databases_script

    get_mariadb_rss_reader_admin_password
    if [ ! $RSS_READER_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            RSS_READER_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            RSS_READER_ADMIN_PASSWORD="$(openssl rand -base64 32 | cut -c1-30)"
        fi
    fi

    create_database ttrss "$RSS_READER_ADMIN_PASSWORD" $MY_USERNAME

    RSS_READER_ONION_HOSTNAME=$(add_onion_service ttrss 80 ${RSS_READER_ONION_PORT})
    RSS_MOBILE_READER_ONION_HOSTNAME=$(add_onion_service ttrss 80 ${RSS_MOBILE_READER_ONION_PORT})

    echo 'server {' > /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo "  listen 127.0.0.1:$RSS_MOBILE_READER_ONION_PORT;" >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo "  server_name $RSS_MOBILE_READER_ONION_HOSTNAME;" >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  access_log off;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  error_log off;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  root /etc/share/ttrss-mobile;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  index index.html index.php;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location ~ \.php {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    include snippets/fastcgi-php.conf;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location / {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    try_files $uri $uri/ @ttrss;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location /tt-rss {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    try_files $uri $uri/ @ttrss_base;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location @ttrss {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    rewrite ^(.*)$ /index.html?p=$1 last;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location @ttrss_base {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location ~ /\.(git) {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    deny all;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  add_header X-Frame-Options DENY;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  add_header X-Content-Type-Options nosniff;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  client_max_body_size 15m;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo 'server {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo "  listen 127.0.0.1:$RSS_READER_ONION_PORT default_server;" >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo "  server_name $RSS_READER_ONION_HOSTNAME;" >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  access_log off;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  error_log off;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  root /etc/share/tt-rss;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  index index.php;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location ~ \.php {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    include snippets/fastcgi-php.conf;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  set $mobile_rewrite do_not_perform;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  ## chi http_user_agent for mobile / smart phones ##' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  if ($http_user_agent ~* "(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino") {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    set $mobile_rewrite perform;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  if ($http_user_agent ~* "^(1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-)") {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    set $mobile_rewrite perform;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  if ($mobile_rewrite = perform) {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo "    rewrite ^/(.*) http://$RSS_MOBILE_READER_ONION_HOSTNAME permanent;" >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    break;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location ~ \.php {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    include snippets/fastcgi-php.conf;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location / {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    try_files $uri $uri/ @ttrss;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location @ttrss {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  location ~ /\.(git) {' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '    deny all;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  }' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  add_header X-Frame-Options DENY;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  add_header X-Content-Type-Options nosniff;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '  client_max_body_size 15m;' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$RSS_READER_DOMAIN_NAME

    if [ ! -f $RSS_READER_PATH/config.php ]; then
        # generate a config file
        RSS_FEED_CRYPT_KEY="$(openssl rand -base64 26 | cut -c1-24)"
        echo '<?php' > $RSS_READER_PATH/config.php
        echo "  define ('_CURL_HTTP_PROXY', '127.0.0.1:9050');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_TYPE', 'mysql');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_HOST', 'localhost');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_USER', 'root');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_NAME', 'ttrss');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_PASS', '${MARIADB_PASSWORD}');" >> $RSS_READER_PATH/config.php
        echo "  define('DB_PORT', '3306');" >> $RSS_READER_PATH/config.php
        echo "  define('MYSQL_CHARSET', 'UTF8');" >> $RSS_READER_PATH/config.php
        echo "  define('SELF_URL_PATH', 'http://${RSS_READER_ONION_HOSTNAME}/');" >> $RSS_READER_PATH/config.php
        echo "  define('FEED_CRYPT_KEY', '${RSS_FEED_CRYPT_KEY}');" >> $RSS_READER_PATH/config.php
        echo "  define('SINGLE_USER_MODE', false);" >> $RSS_READER_PATH/config.php
        echo "  define('SIMPLE_UPDATE_MODE', false);" >> $RSS_READER_PATH/config.php
        echo "  define('PHP_EXECUTABLE', '/usr/bin/php');" >> $RSS_READER_PATH/config.php
        echo "  define('LOCK_DIRECTORY', 'lock');" >> $RSS_READER_PATH/config.php
        echo "  define('CACHE_DIR', 'cache');" >> $RSS_READER_PATH/config.php
        echo "  define('ICONS_DIR', \"feed-icons\");" >> $RSS_READER_PATH/config.php
        echo "  define('ICONS_URL', \"feed-icons\");" >> $RSS_READER_PATH/config.php
        echo "  define('AUTH_AUTO_CREATE', true);" >> $RSS_READER_PATH/config.php
        echo "  define('AUTH_AUTO_LOGIN', true);" >> $RSS_READER_PATH/config.php
        echo "  define('FORCE_ARTICLE_PURGE', 0);" >> $RSS_READER_PATH/config.php
        echo "  define('PUBSUBHUBBUB_HUB', '');" >> $RSS_READER_PATH/config.php
        echo "  define('PUBSUBHUBBUB_ENABLED', false);" >> $RSS_READER_PATH/config.php
        echo "  define('SPHINX_SERVER', 'localhost:9312');" >> $RSS_READER_PATH/config.php
        echo "  define('SPHINX_INDEX', 'ttrss, delta');" >> $RSS_READER_PATH/config.php
        echo "  define('ENABLE_REGISTRATION', false);" >> $RSS_READER_PATH/config.php
        echo "  define('REG_NOTIFY_ADDRESS', '${MY_EMAIL_ADDRESS}');" >> $RSS_READER_PATH/config.php
        echo "  define('REG_MAX_USERS', 10);" >> $RSS_READER_PATH/config.php
        echo "  define('SESSION_COOKIE_LIFETIME', 86400);" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_FROM_NAME', 'Tiny Tiny RSS');" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_FROM_ADDRESS', 'noreply@${RSS_READER_ONION_HOSTNAME}');" >> $RSS_READER_PATH/config.php
        echo "  define('DIGEST_SUBJECT', '[tt-rss] New headlines for last 24 hours');" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_SERVER', '');" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_LOGIN', '');" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_PASSWORD', '');" >> $RSS_READER_PATH/config.php
        echo "  define('SMTP_SECURE', '');" >> $RSS_READER_PATH/config.php
        echo "  define('CHECK_FOR_UPDATES', false);" >> $RSS_READER_PATH/config.php
        echo "  define('ENABLE_GZIP_OUTPUT', false);" >> $RSS_READER_PATH/config.php
        echo "  define('PLUGINS', 'auth_internal, note, gnusocial');" >> $RSS_READER_PATH/config.php
        echo "  define('LOG_DESTINATION', 'sql');" >> $RSS_READER_PATH/config.php
        echo "  define('CONFIG_VERSION', 26);" >> $RSS_READER_PATH/config.php
    fi

    # initialize the database
    if [ ! -f $RSS_READER_PATH/schema/ttrss_schema_mysql.sql ]; then
        echo $'No database schema found for rss reader'
        exit 52926
    fi
    mysql -u root --password="$MARIADB_PASSWORD" -D ttrss < $RSS_READER_PATH/schema/ttrss_schema_mysql.sql

    # change the password from the default
    RSS_READER_ADMIN_PASSWORD_HASH=$(echo -n "${RSS_READER_ADMIN_PASSWORD}" | sha1sum | awk -F ' ' '{print $1}')
    mysql -u root --password="$MARIADB_PASSWORD" -e "update ttrss_users set pwd_hash = 'SHA1:${RSS_READER_ADMIN_PASSWORD_HASH}', salt= '' WHERE login = 'admin';" ttrss

    rss_reader_modifications

    configure_php

    nginx_ensite $RSS_READER_DOMAIN_NAME
    systemctl restart php5-fpm
    systemctl restart nginx

    if ! grep -q "RSS reader onion domain" $COMPLETION_FILE; then
        echo "RSS reader onion domain:${RSS_READER_ONION_HOSTNAME}" >> $COMPLETION_FILE
    fi
    if ! grep -q "RSS reader domain" $COMPLETION_FILE; then
        echo "RSS reader domain:${RSS_READER_DOMAIN_NAME}" >> $COMPLETION_FILE
    fi

    # daemon to update feeds
    echo '[Unit]' > /etc/systemd/system/ttrss.service
    echo 'Description=ttrss_backend' >> /etc/systemd/system/ttrss.service
    echo 'After=network.target mysql.service' >> /etc/systemd/system/ttrss.service
    echo 'After=tor.service' >> /etc/systemd/system/ttrss.service
    echo '' >> /etc/systemd/system/ttrss.service
    echo '[Service]' >> /etc/systemd/system/ttrss.service
    echo 'User=www-data' >> /etc/systemd/system/ttrss.service
    echo "ExecStart=/usr/bin/php $RSS_READER_PATH/update.php --daemon" >> /etc/systemd/system/ttrss.service
    echo '' >> /etc/systemd/system/ttrss.service
    echo '[Install]' >> /etc/systemd/system/ttrss.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/ttrss.service
    systemctl enable ttrss
    systemctl daemon-reload
    systemctl start ttrss

    # some post-install instructions for the user
    if ! grep -q $"RSS Reader" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'RSS Reader' >> /home/$MY_USERNAME/README
        echo '==========' >> /home/$MY_USERNAME/README
        echo $"RSS reader domain: ${RSS_READER_DOMAIN_NAME}" >> /home/$MY_USERNAME/README
        echo $"RSS reader onion domain: ${RSS_READER_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"RSS reader admin username: admin" >> /home/$MY_USERNAME/README
        echo $"RSS reader admin password: ${RSS_READER_ADMIN_PASSWORD}" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_rss_reader' >> $COMPLETION_FILE
}

function install_rss_reader_gnusocial {
    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    if [ ! $MICROBLOG_DOMAIN_NAME ]; then
        return
    fi

    if [ ! $RSS_READER_PATH ]; then
        RSS_READER_PATH=/etc/share/tt-rss
    fi
    RSS_READER_GNUSOCIAL_PATH=${RSS_READER_PATH}/plugins/gnusocial

    # update to the next commit
    set_repo_commit $RSS_READER_GNUSOCIAL_PATH "RSS reader gnusocial commit" "$RSS_READER_GNUSOCIAL_COMMIT" $RSS_READER_GNUSOCIAL_REPO
    chown -R www-data:www-data $RSS_READER_GNUSOCIAL_PATH

    if grep -Fxq "install_rss_reader_gnusocial" $COMPLETION_FILE; then
        return
    fi

    if [ ! -d $INSTALL_DIR ]; then
        mkdir -p $INSTALL_DIR
    fi

    cd $INSTALL_DIR
    git_clone $RSS_READER_GNUSOCIAL_REPO ttrss-gnusocial
    if [ ! -d $INSTALL_DIR/ttrss-gnusocial ]; then
        echo $'Could not clone repo for RSS reader GNU Social plugin'
        exit 52838
    fi
    cp -r $INSTALL_DIR/ttrss-gnusocial $RSS_READER_GNUSOCIAL_PATH
    cd $RSS_READER_GNUSOCIAL_PATH
    git checkout $RSS_READER_GNUSOCIAL_COMMIT -b $RSS_READER_GNUSOCIAL_COMMIT
    if ! grep -q "RSS reader gnusocial commit" $COMPLETION_FILE; then
        echo "RSS reader gnusocial commit:$RSS_READER_GNUSOCIAL_COMMIT" >> $COMPLETION_FILE
    fi
    chown -R www-data:www-data $RSS_READER_GNUSOCIAL_PATH

    echo 'install_rss_reader_gnusocial' >> $COMPLETION_FILE
}

function install_rss_mobile_reader {
    if [[ $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    if [ ! $RSS_READER_PATH ]; then
        RSS_READER_PATH=/etc/share/tt-rss
    fi

    if [ ! -d $RSS_READER_PATH ]; then
        echo $'tt-rss is not installed, so the mobile version cannot be installed'
        exit 63452
    fi

    RSS_MOBILE_READER_PATH=/etc/share/ttrss-mobile

    # remove any previous install
    if [ -d $RSS_READER_PATH/g2ttree-mobile ]; then
        if grep -Fxq "install_rss_mobile_reader" $COMPLETION_FILE; then
            sed -i '/install_rss_mobile_reader/d' $COMPLETION_FILE
            sed -i '/RSS mobile reader commit/d' $COMPLETION_FILE
            rm -rf $RSS_READER_PATH/g2ttree-mobile
        fi
    fi

    # update to the next commit
    set_repo_commit $RSS_MOBILE_READER_PATH "RSS mobile reader commit" "$RSS_MOBILE_READER_COMMIT" $RSS_MOBILE_READER_REPO

    if grep -Fxq "install_rss_mobile_reader" $COMPLETION_FILE; then
        return
    fi

    cd /etc/share
    git_clone $RSS_MOBILE_READER_REPO ttrss-mobile
    if [ ! -d $RSS_MOBILE_READER_PATH ]; then
        echo $'Could not clone RSS mobile reader repo'
        exit 24816
    fi
    cd $RSS_MOBILE_READER_PATH
    git checkout $RSS_MOBILE_READER_COMMIT -b $RSS_MOBILE_READER_COMMIT
    if ! grep -q "RSS mobile reader commit" $COMPLETION_FILE; then
        echo "RSS mobile reader commit:$RSS_MOBILE_READER_COMMIT" >> $COMPLETION_FILE
    fi

    echo 'define({' > $RSS_MOBILE_READER_PATH/scripts/conf.js
    echo '  apiPath: "/tt-rss/"' >> $RSS_MOBILE_READER_PATH/scripts/conf.js
    echo '});' >> $RSS_MOBILE_READER_PATH/scripts/conf.js

    # link to the main site
    ln -s $RSS_READER_PATH $RSS_MOBILE_READER_PATH/tt-rss

    chown -R www-data:www-data $RSS_MOBILE_READER_PATH
    chown -R www-data:www-data $RSS_READER_PATH
    chmod a+x $RSS_MOBILE_READER_PATH

    echo 'install_rss_mobile_reader' >> $COMPLETION_FILE
}

function install_gnu_social {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! $MICROBLOG_DOMAIN_NAME ]; then
        echo $'No domain name was given for the microblog'
        exit 7359
    fi

    # update to the next commit
    set_repo_commit /var/www/$MICROBLOG_DOMAIN_NAME/htdocs "GNU Social commit" "$MICROBLOG_COMMIT" $MICROBLOG_REPO

    if grep -Fxq "install_gnu_social" $COMPLETION_FILE; then
        return
    fi

    install_mariadb
    get_mariadb_password
    repair_databases_script

    apt-get -y install php-gettext php5-curl php5-gd php5-mysql git curl php-xml-parser

    if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME ]; then
        mkdir /var/www/$MICROBLOG_DOMAIN_NAME
    fi
    if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME/htdocs ]; then
        git_clone $MICROBLOG_REPO /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
        if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME/htdocs ]; then
            echo $'Unable to clone gnusocial repo'
            exit 87525
        fi
    fi

    cd /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
    git checkout $MICROBLOG_COMMIT -b $MICROBLOG_COMMIT
    if ! grep -q "GNU Social commit" $COMPLETION_FILE; then
        echo "GNU Social commit:$MICROBLOG_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/GNU Social commit.*/GNU Social commit:$MICROBLOG_COMMIT/g" $COMPLETION_FILE
    fi

    chmod a+w /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
    chown www-data:www-data /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
    chmod +x /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/scripts/maildaemon.php

    get_mariadb_gnusocial_admin_password
    if [ ! $MICROBLOG_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            MICROBLOG_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            MICROBLOG_ADMIN_PASSWORD="$(openssl rand -base64 32 | cut -c1-30)"
        fi
    fi

    create_database gnusocial "$MICROBLOG_ADMIN_PASSWORD" $MY_USERNAME

    if [ ! -f "/etc/aliases" ]; then
        touch /etc/aliases
    fi
    if ! grep -q "www-data: root" /etc/aliases; then
        echo 'www-data: root' >> /etc/aliases
    fi
    if ! grep -q "/var/www/$MICROBLOG_DOMAIN_NAME/htdocs/scripts/maildaemon.php" /etc/aliases; then
        echo "*: /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/scripts/maildaemon.php" >> /etc/aliases
    fi
    newaliases

    add_ddns_domain $MICROBLOG_DOMAIN_NAME

    microblog_nginx_site=/etc/nginx/sites-available/$MICROBLOG_DOMAIN_NAME
    if [[ $ONION_ONLY == "no" ]]; then
        nginx_http_redirect $MICROBLOG_DOMAIN_NAME
        echo 'server {' >> $microblog_nginx_site
        echo '  listen 443 ssl;' >> $microblog_nginx_site
        echo "  server_name $MICROBLOG_DOMAIN_NAME;" >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Security' >> $microblog_nginx_site
        nginx_ssl $MICROBLOG_DOMAIN_NAME
        nginx_disable_sniffing $MICROBLOG_DOMAIN_NAME
        nginx_limits $MICROBLOG_DOMAIN_NAME '15m'
        echo '  add_header Strict-Transport-Security max-age=15768000;' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Logs' >> $microblog_nginx_site
        echo '  access_log off;' >> $microblog_nginx_site
        echo '  error_log off;' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Root' >> $microblog_nginx_site
        echo "  root /var/www/$MICROBLOG_DOMAIN_NAME/htdocs;" >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Index' >> $microblog_nginx_site
        echo '  index index.php;' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # PHP' >> $microblog_nginx_site
        echo '  location ~ \.php {' >> $microblog_nginx_site
        echo '    include snippets/fastcgi-php.conf;' >> $microblog_nginx_site
        echo '    fastcgi_pass unix:/var/run/php5-fpm.sock;' >> $microblog_nginx_site
        echo '  }' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Location' >> $microblog_nginx_site
        echo '  location / {' >> $microblog_nginx_site
        echo '    try_files $uri $uri/ @gnusocial;' >> $microblog_nginx_site
        echo '  }' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Fancy URLs' >> $microblog_nginx_site
        echo '  location @gnusocial {' >> $microblog_nginx_site
        echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> $microblog_nginx_site
        echo '  }' >> $microblog_nginx_site
        echo '' >> $microblog_nginx_site
        echo '  # Restrict access that is unnecessary anyway' >> $microblog_nginx_site
        echo '  location ~ /\.(ht|git) {' >> $microblog_nginx_site
        echo '    deny all;' >> $microblog_nginx_site
        echo '  }' >> $microblog_nginx_site
        echo '}' >> $microblog_nginx_site
    else
        echo -n '' > $microblog_nginx_site
    fi
    echo 'server {' >> $microblog_nginx_site
    echo "    listen 127.0.0.1:$MICROBLOG_ONION_PORT default_server;" >> $microblog_nginx_site
    echo "    server_name $MICROBLOG_DOMAIN_NAME;" >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Logs' >> $microblog_nginx_site
    echo '  access_log off;' >> $microblog_nginx_site
    echo '  error_log off;' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Root' >> $microblog_nginx_site
    echo "  root /var/www/$MICROBLOG_DOMAIN_NAME/htdocs;" >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Index' >> $microblog_nginx_site
    echo '  index index.php;' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # PHP' >> $microblog_nginx_site
    echo '  location ~ \.php {' >> $microblog_nginx_site
    echo '    include snippets/fastcgi-php.conf;' >> $microblog_nginx_site
    echo '    fastcgi_pass unix:/var/run/php5-fpm.sock;' >> $microblog_nginx_site
    echo '  }' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Location' >> $microblog_nginx_site
    echo '  location / {' >> $microblog_nginx_site
    echo '    try_files $uri $uri/ @gnusocial;' >> $microblog_nginx_site
    echo '  }' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Fancy URLs' >> $microblog_nginx_site
    echo '  location @gnusocial {' >> $microblog_nginx_site
    echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> $microblog_nginx_site
    echo '  }' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    echo '  # Restrict access that is unnecessary anyway' >> $microblog_nginx_site
    echo '  location ~ /\.(ht|git) {' >> $microblog_nginx_site
    echo '    deny all;' >> $microblog_nginx_site
    echo '  }' >> $microblog_nginx_site
    echo '' >> $microblog_nginx_site
    nginx_disable_sniffing $MICROBLOG_DOMAIN_NAME
    nginx_limits $MICROBLOG_DOMAIN_NAME '15m'
    echo '}' >> $microblog_nginx_site

    configure_php

    create_site_certificate $MICROBLOG_DOMAIN_NAME 'yes'

    # Ensure that the database gets backed up locally, if remote
    # backups are not being used
    backup_databases_script_header

    backup_database_local gnusocial

    nginx_ensite $MICROBLOG_DOMAIN_NAME

    # NOTE: For the typical case always enable SSL and only
    # disable it if in onion only mode. This is due to complexities
    # with the way URLs are generated by GNU Social
    gnu_social_ssl='always'
    if [[ $ONION_ONLY != 'no' ]]; then
        gnu_social_ssl='never'
    fi

    MICROBLOG_ONION_HOSTNAME=$(add_onion_service microblog 80 ${MICROBLOG_ONION_PORT})

    MICROBLOG_SERVER=${MICROBLOG_DOMAIN_NAME}
    if [[ $ONION_ONLY != 'no' ]]; then
        MICROBLOG_SERVER=${MICROBLOG_ONION_HOSTNAME}
    fi

    # Create the configuration
    gnu_social_installer=/var/www/${MICROBLOG_DOMAIN_NAME}/htdocs/scripts/install_cli.php
    if [ ! -f $gnu_social_installer ]; then
        echo $'No GNU Social commandline installer found'
        exit 53026
    fi
    ${gnu_social_installer} --server "${MICROBLOG_SERVER}" \
                            --host="localhost" --database="gnusocial" \
                            --dbtype=mysql --username="root" -v \
                            --password="$MARIADB_PASSWORD" \
                            --sitename=$"GNU Social" --fancy='yes' \
                            --admin-nick="$MY_USERNAME" \
                            --admin-pass="$MICROBLOG_ADMIN_PASSWORD" \
                            --site-profile="community" \
                            --ssl=${gnu_social_ssl}
    # There can be a lot of warnings here so the return value check is disabled
    #if [ ! "$?" = "0" ]; then
    #    # failed to install
    #    echo $'Could not install GNU Social'
    #    exit 72357
    #fi

    # check microblog has a config file
    microblog_config_file=/var/www/$MICROBLOG_DOMAIN_NAME/htdocs/config.php
    if [ ! -f $microblog_config_file ]; then
        echo $'Microblog config.php not found'
        exit 87586
    fi

    # Some useful settings
    if ! grep -q "Recommended GNU social settings" $microblog_config_file; then
        echo "" >> $microblog_config_file
        echo "// Recommended GNU social settings" >> $microblog_config_file
        echo "\$config['thumbnail']['maxsize'] = 3000;" >> $microblog_config_file
        echo "\$config['profile']['delete'] = true;" >> $microblog_config_file
        echo "\$config['profile']['changenick'] = true;" >> $microblog_config_file
        echo "\$config['public']['localonly'] = false;" >> $microblog_config_file
        echo "addPlugin('StoreRemoteMedia');" >> $microblog_config_file
        echo "\$config['queue']['enabled'] = true;" >> $microblog_config_file
        echo "\$config['queue']['daemon'] = true;" >> $microblog_config_file
    fi

    # This improves performance
    sed -i "s|//\$config\['db'\]\['schemacheck'\].*|\$config\['db'\]\['schemacheck'\] = 'script';|g" $microblog_config_file

    systemctl restart php5-fpm
    systemctl restart nginx

    freedombone-addemail -u $MY_USERNAME -e "noreply@$MICROBLOG_DOMAIN_NAME" -g gnusocial --public no

    # some post-install instructions for the user
    if ! grep -q $"Microblog administrator" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Microblog' >> /home/$MY_USERNAME/README
        echo '=========' >> /home/$MY_USERNAME/README
        echo $"Microblog administrator nickname: $MY_USERNAME" >> /home/$MY_USERNAME/README
        echo $"Microblog administrator password: $MICROBLOG_ADMIN_PASSWORD" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    if ! grep -q "Microblog onion domain" /home/$MY_USERNAME/README; then
        echo $"Microblog onion domain: ${MICROBLOG_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi
    echo "GNU Social onion domain:${MICROBLOG_ONION_HOSTNAME}" >> $COMPLETION_FILE

    echo "GNU Social domain:$MICROBLOG_DOMAIN_NAME" >> $COMPLETION_FILE
    echo 'install_gnu_social' >> $COMPLETION_FILE
}

function expire_gnu_social_posts {
    # To prevent the database size from growing endlessly this script expires posts
    # after a number of months
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME/htdocs ]; then
        return
    fi

    gnusocial_expire_script=/usr/bin/gnusocial-expire

    echo '<?php' > $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo '// GNU Social post expiry script, based on StatExpire by Tony Baldwin' >> $gnusocial_expire_script
    echo '// https://github.com/tonybaldwin/statexpire' >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo '$oldate=date(("Y-m-d"), strtotime("-3 months"));' >> $gnusocial_expire_script
    echo '$username="root";' >> $gnusocial_expire_script
    echo "\$password=trim(file_get_contents(\"$DATABASE_PASSWORD_FILE\"));" >> $gnusocial_expire_script
    echo '$database="gnusocial";' >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo 'if (!$link = mysql_connect("localhost", $username, $password)) {' >> $gnusocial_expire_script
    echo '    echo "Could not connect to mariadb";' >> $gnusocial_expire_script
    echo '    exit;' >> $gnusocial_expire_script
    echo '}' >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo 'if (!mysql_select_db($database, $link)) {' >> $gnusocial_expire_script
    echo '    echo "Could not select gnusocial database";' >> $gnusocial_expire_script
    echo '    exit;' >> $gnusocial_expire_script
    echo '}' >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo "\$notice_query=\"DELETE FROM notice WHERE created <= '\$oldate 01:01:01'\";" >> $gnusocial_expire_script
    echo "\$conversation_query=\"DELETE FROM conversation WHERE created <= '$oldate 01:01:01'\";" >> $gnusocial_expire_script
    echo "\$reply_query=\"DELETE FROM reply WHERE modified <= '\$oldate 01:01:01'\";" >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo 'mysql_query($notice_query);' >> $gnusocial_expire_script
    echo '$rowaff1=mysql_affected_rows();' >> $gnusocial_expire_script
    echo 'mysql_query($conversation_query);' >> $gnusocial_expire_script
    echo '$rowaff2=mysql_affected_rows();' >> $gnusocial_expire_script
    echo 'mysql_query($reply_query);' >> $gnusocial_expire_script
    echo '$rowaff3=mysql_affected_rows();' >> $gnusocial_expire_script
    echo 'mysql_close();' >> $gnusocial_expire_script
    echo '' >> $gnusocial_expire_script
    echo 'echo "Expire GNU Social posts: $rowaff1 notices, $rowaff2 conversations, and $rowaff3 replies deleted from database.\n";' >> $gnusocial_expire_script
    chmod +x $gnusocial_expire_script

    # Add a cron job
    if ! grep -q "$gnusocial_expire_script" /etc/crontab; then
        echo "10 3 5   *   *   root /usr/bin/timeout 500 /usr/bin/php $gnusocial_expire_script" >> /etc/crontab
    fi

    # remove old expire script
    if [ -f /etc/cron.weekly/clear-microblog-database ]; then
        rm /etc/cron.weekly/clear-microblog-database
    fi
}

function install_gnu_social_theme {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins/Qvitter "GNU Social theme commit" "$MICROBLOG_THEME_COMMIT" $MICROBLOG_THEME_REPO

    if grep -Fxq "install_gnu_social_theme" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install wget

    if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins ]; then
        mkdir -p /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins
    fi

    cd /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins
    git_clone $MICROBLOG_THEME_REPO Qvitter
    cd /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins/Qvitter
    git checkout $MICROBLOG_THEME_COMMIT -b $MICROBLOG_THEME_COMMIT

    # download a custom background image
    MICROBLOG_BACKGROUND_IMAGE_URL_EXT=
    if [ $MICROBLOG_BACKGROUND_IMAGE_URL ]; then
        if [[ $$MICROBLOG_BACKGROUND_IMAGE_URL == *".jpeg" || $$MICROBLOG_BACKGROUND_IMAGE_URL == *".jpg" ]]; then
            MICROBLOG_BACKGROUND_IMAGE_URL_EXT="jpg"
        fi
        if [[ $$MICROBLOG_BACKGROUND_IMAGE_URL == *".png" ]]; then
            MICROBLOG_BACKGROUND_IMAGE_URL_EXT="png"
        fi
        if [[ $$MICROBLOG_BACKGROUND_IMAGE_URL == *".gif" ]]; then
            MICROBLOG_BACKGROUND_IMAGE_URL_EXT="gif"
        fi
        if [ $MICROBLOG_BACKGROUND_IMAGE_URL_EXT ]; then
            wget $MICROBLOG_BACKGROUND_IMAGE_URL -O img/custom.${MICROBLOG_BACKGROUND_IMAGE_URL_EXT}
            if [ ! -f img/custom.${MICROBLOG_BACKGROUND_IMAGE_URL_EXT} ]; then
                echo "$MICROBLOG_BACKGROUND_IMAGE_URL"
                echo $'Custom background image for microblog could not be downloaded'
                exit 87524
            fi
        fi
    fi

    microblog_config_file=/var/www/$MICROBLOG_DOMAIN_NAME/htdocs/config.php
    if ! grep -q "addPlugin('Qvitter')" $microblog_config_file; then
        MICROBLOG_WELCOME_MESSAGE=$(echo $MICROBLOG_WELCOME_MESSAGE | sed "s|\$MICROBLOG_DOMAIN_NAME|$MICROBLOG_DOMAIN_NAME|g")
        echo "" >> $microblog_config_file
        echo "// Qvitter settings" >> $microblog_config_file
        echo "addPlugin('Qvitter');" >> $microblog_config_file
        echo "\$config['site']['qvitter']['enabledbydefault'] = true;" >> $microblog_config_file
        echo "\$config['site']['qvitter']['defaultbackgroundcolor'] = '#f4f4f4';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['defaultlinkcolor'] = '#0084B4';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['timebetweenpolling'] = 120000; // two minutes" >> $microblog_config_file
        echo "\$config['site']['qvitter']['urlshortenerapiurl'] = 'http://qttr.at/shortener.php';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['urlshortenersignature'] = 'b6afeec983';" >> $microblog_config_file
        if [ $MICROBLOG_BACKGROUND_IMAGE_URL ]; then
            echo "\$config['site']['qvitter']['sitebackground'] = 'img/custom.${MICROBLOG_BACKGROUND_IMAGE_URL_EXT}';" >> $microblog_config_file
        else
            echo "\$config['site']['qvitter']['sitebackground'] = 'img/vagnsmossen.jpg';" >> $microblog_config_file
        fi
        echo "\$config['site']['qvitter']['favicon'] = 'img/favicon.ico?v=4';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['sprite'] = Plugin::staticPath('Qvitter', '').'img/sprite.png?v=40';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['enablewelcometext'] = true;" >> $microblog_config_file
        echo "\$config['site']['qvitter']['customwelcometext']['en'] = '$MICROBLOG_WELCOME_MESSAGE';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['customwelcometext']['de'] = '$MICROBLOG_WELCOME_MESSAGE';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['customwelcometext']['fr'] = '$MICROBLOG_WELCOME_MESSAGE';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['customwelcometext']['es'] = '$MICROBLOG_WELCOME_MESSAGE';" >> $microblog_config_file
        echo "\$config['site']['qvitter']['blocked_ips'] = array();" >> $microblog_config_file
    else
        if [ $MICROBLOG_BACKGROUND_IMAGE_URL_EXT ]; then
            if [ -f img/custom.${MICROBLOG_BACKGROUND_IMAGE_URL_EXT} ]; then
                sed -i "s|\$config['site']['qvitter']['sitebackground'].*|\$config['site']['qvitter']['sitebackground'] = 'img/custom.${MICROBLOG_BACKGROUND_IMAGE_URL_EXT}';|g" $microblog_config_file
            fi
        fi
    fi

    if ! grep -q "GNU Social theme commit" $COMPLETION_FILE; then
        echo "GNU Social theme commit:$MICROBLOG_THEME_COMMIT" >> $COMPLETION_FILE
    fi

    chown -R www-data:www-data /var/www/$MICROBLOG_DOMAIN_NAME/htdocs

    echo 'install_gnu_social_theme' >> $COMPLETION_FILE
}

function install_gnu_social_markdown {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi

    MICROBLOG_PATH=/var/www/$MICROBLOG_DOMAIN_NAME/htdocs

    # update to the next commit
    set_repo_commit $MICROBLOG_PATH/local/plugins/Markdown "GNU Social Markdown commit" "$MICROBLOG_MARKDOWN_COMMIT" $MICROBLOG_MARKDOWN_REPO

    if grep -Fxq "install_gnu_social_markdown" $COMPLETION_FILE; then
        return
    fi

    if [ -d $MICROBLOG_PATH/local/plugins/Markdown ]; then
        rm -rf $MICROBLOG_PATH/local/plugins/Markdown
    fi

    if [ ! -d $MICROBLOG_PATH/local/plugins ]; then
        mkdir -p $MICROBLOG_PATH/local/plugins
    fi

    cd $MICROBLOG_PATH/local/plugins
    git_clone $MICROBLOG_MARKDOWN_REPO Markdown
    cd $MICROBLOG_PATH/local/plugins/Markdown
    git checkout $MICROBLOG_MARKDOWN_COMMIT -b $MICROBLOG_MARKDOWN_COMMIT

    microblog_config_file=$MICROBLOG_PATH/config.php
    if ! grep -q "addPlugin('Markdown'" $microblog_config_file; then
        echo "" >> $microblog_config_file
        echo "// Markdown settings" >> $microblog_config_file
        echo "addPlugin('Markdown');" >> $microblog_config_file
    fi

    if ! grep -q "GNU Social Markdown commit" $COMPLETION_FILE; then
        echo "GNU Social Markdown commit:$MICROBLOG_MARKDOWN_COMMIT" >> $COMPLETION_FILE
    fi

    chown -R www-data:www-data $MICROBLOG_PATH

    echo 'install_gnu_social_markdown' >> $COMPLETION_FILE
}

function install_search_engine {
    # Note: currently socks5 outgoing proxies to other search engines does not work
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! -d /etc/nginx ]; then
        echo $'Webserver is not installed'
        exit 62429
    fi

    # update to a new commit if needed
    set_repo_commit $SEARCH_ENGINE_PATH/searx "Search engine commit" "$SEARCH_ENGINE_COMMIT" $SEARCH_ENGINE_REPO
    if grep "Search engine key" $COMPLETION_FILE; then
        if [ -f ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml ]; then
            # note: this might change to a --tor option in a later version
            if ! grep 'socks5://127.0.0.1:9050' ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml; then
                echo 'outgoing: # communication with search engines' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
                echo '    proxies:' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
                echo '        http : socks5://127.0.0.1:9050' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
                echo '        https: socks5://127.0.0.1:9050' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
            fi
            SEARCH_ENGINE_SECRET_KEY=$(cat $COMPLETION_FILE | grep "Search engine key" | awk -F ':' '{print $2}')
            sed -i "s|secret_key.*|secret_key : \"${SEARCH_ENGINE_SECRET_KEY}\"|g" ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
            if [ -f /var/lib/tor/hidden_service_searx/hostname ]; then
                SEARCH_ENGINE_ONION_HOSTNAME=$(echo /var/lib/tor/hidden_service_searx/hostname)
                sed -i '0,/RE/s/base_url.*/base_url : \"http://${SEARCH_ENGINE_ONION_HOSTNAME}\/' ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
            fi
        fi
    fi

    if grep -Fxq "install_search_engine" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install python-pip libyaml-dev python-werkzeug python-babel python-lxml apache2-utils
    apt-get -y install git build-essential libxslt-dev python-dev python-virtualenv python-pybabel zlib1g-dev uwsgi uwsgi-plugin-python libapache2-mod-uwsgi

    pip install --upgrade pip

    pip install certifi
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install certifi'
        exit 737692
    fi

    pip install pyyaml
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install pyyaml'
        exit 469242
    fi

    pip install flask --upgrade
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install flask'
        exit 888575
    fi

    pip install flask_restless --upgrade
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install flask_restless'
        exit 54835
    fi

    pip install flask_babel --upgrade
    if [ ! "$?" = "0" ]; then
        echo $'Failed to install flask_babel'
        exit 63738
    fi

    if [ ! -d $SEARCH_ENGINE_PATH ]; then
        mkdir -p $SEARCH_ENGINE_PATH
    fi

    # clone the repo
    cd $SEARCH_ENGINE_PATH
    git_clone $SEARCH_ENGINE_REPO searx
    git checkout $SEARCH_ENGINE_COMMIT -b $SEARCH_ENGINE_COMMIT
    if ! grep -q "Search engine commit" $COMPLETION_FILE; then
        echo "Search engine commit:$SEARCH_ENGINE_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/Search engine commit.*/Search engine commit:$SEARCH_ENGINE_COMMIT/g" $COMPLETION_FILE
    fi

    # create an onion service
    SEARCH_ENGINE_ONION_HOSTNAME=$(add_onion_service searx 80 ${SEARCH_ENGINE_ONION_PORT})
    if ! grep "Search engine onion domain" $COMPLETION_FILE; then
        echo "Search engine onion domain:${SEARCH_ENGINE_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|Search engine onion domain.*|Search engine onion domain:${SEARCH_ENGINE_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi

    # an unprivileged user to run as
    useradd -d ${SEARCH_ENGINE_PATH}/searx/ -s /bin/false searx
    adduser searx debian-tor

    # daemon
    echo '[Unit]' > /etc/systemd/system/searx.service
    echo 'Description=Searx (search engine)' >> /etc/systemd/system/searx.service
    echo 'After=syslog.target' >> /etc/systemd/system/searx.service
    echo 'After=network.target' >> /etc/systemd/system/searx.service
    echo '' >> /etc/systemd/system/searx.service
    echo '[Service]' >> /etc/systemd/system/searx.service
    echo 'Type=simple' >> /etc/systemd/system/searx.service
    echo 'User=searx' >> /etc/systemd/system/searx.service
    echo 'Group=searx' >> /etc/systemd/system/searx.service
    echo "WorkingDirectory=${SEARCH_ENGINE_PATH}/searx" >> /etc/systemd/system/searx.service
    echo "ExecStart=/usr/bin/python ${SEARCH_ENGINE_PATH}/searx/searx/webapp.py" >> /etc/systemd/system/searx.service
    echo 'Restart=always' >> /etc/systemd/system/searx.service
    echo 'Environment="USER=searx"' >> /etc/systemd/system/searx.service
    echo '' >> /etc/systemd/system/searx.service
    echo '[Install]' >> /etc/systemd/system/searx.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/searx.service

    # create a webserver file
    echo 'server {' > /etc/nginx/sites-available/searx
    echo "    listen 127.0.0.1:${SEARCH_ENGINE_ONION_PORT} default_server;" >> /etc/nginx/sites-available/searx
    echo "    root ${SEARCH_ENGINE_PATH}/searx;" >> /etc/nginx/sites-available/searx
    echo "    server_name ${SEARCH_ENGINE_ONION_HOSTNAME};" >> /etc/nginx/sites-available/searx
    echo '    access_log off;' >> /etc/nginx/sites-available/searx
    echo "    error_log /var/log/searx_error.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/searx
    echo '' >> /etc/nginx/sites-available/searx
    nginx_limits searx '1M'
    nginx_disable_sniffing searx
    echo '    add_header Strict-Transport-Security max-age=0;' >> /etc/nginx/sites-available/searx
    echo '' >> /etc/nginx/sites-available/searx
    echo '    location / {' >> /etc/nginx/sites-available/searx
    echo '        proxy_pass http://localhost:8888;' >> /etc/nginx/sites-available/searx
    echo '        proxy_set_header Host $host;' >> /etc/nginx/sites-available/searx
    echo '        proxy_set_header X-Real-IP $remote_addr;' >> /etc/nginx/sites-available/searx
    echo '        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;' >> /etc/nginx/sites-available/searx
    echo '        proxy_set_header X-Remote-Port $remote_port;' >> /etc/nginx/sites-available/searx
    echo '        proxy_set_header X-Forwarded-Proto $scheme;' >> /etc/nginx/sites-available/searx
    echo '        proxy_redirect off;' >> /etc/nginx/sites-available/searx

    echo "        auth_basic \"${SEARCH_ENGINE_LOGIN_TEXT}\";" >> /etc/nginx/sites-available/searx
    echo '        auth_basic_user_file /etc/nginx/.htpasswd;' >> /etc/nginx/sites-available/searx
    echo '    }' >> /etc/nginx/sites-available/searx
    echo '' >> /etc/nginx/sites-available/searx
    echo '    fastcgi_buffers 64 4K;' >> /etc/nginx/sites-available/searx
    echo '' >> /etc/nginx/sites-available/searx
    echo '    error_page 403 /core/templates/403.php;' >> /etc/nginx/sites-available/searx
    echo '    error_page 404 /core/templates/404.php;' >> /etc/nginx/sites-available/searx
    echo '' >> /etc/nginx/sites-available/searx
    echo '    location = /robots.txt {' >> /etc/nginx/sites-available/searx
    echo '        allow all;' >> /etc/nginx/sites-available/searx
    echo '        log_not_found off;' >> /etc/nginx/sites-available/searx
    echo '        access_log off;' >> /etc/nginx/sites-available/searx
    echo '    }' >> /etc/nginx/sites-available/searx
    echo '}' >> /etc/nginx/sites-available/searx

    # replace the secret key
    if ! grep "Search engine key" $COMPLETION_FILE; then
        SEARCH_ENGINE_SECRET_KEY="$(openssl rand -base64 32 | cut -c1-30)"
        echo "Search engine key:${SEARCH_ENGINE_SECRET_KEY}" >> $COMPLETION_FILE
    else
        SEARCH_ENGINE_SECRET_KEY=$(cat $COMPLETION_FILE | grep "Search engine key" | awk -F ':' '{print $2}')
    fi
    sed -i "s|secret_key.*|secret_key : \"${SEARCH_ENGINE_SECRET_KEY}\"|g" ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
    sed -i "s|secret_key.*|secret_key : \"${SEARCH_ENGINE_SECRET_KEY}\"|g" ${SEARCH_ENGINE_PATH}/searx/searx/settings_robot.yml
    sed -i '0,/RE/s/base_url.*/base_url : \"http://${SEARCH_ENGINE_ONION_HOSTNAME}\/' ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
    sed -i '0,/RE/s/base_url.*/base_url : \"http://${SEARCH_ENGINE_ONION_HOSTNAME}\/' ${SEARCH_ENGINE_PATH}/searx/searx/settings_robot.yml

    # note: this might change to a --tor option in a later version
    if ! grep 'socks5://127.0.0.1:9050' ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml; then
        echo 'outgoing: # communication with search engines' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
        echo '    proxies:' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
        echo '        http : socks5://127.0.0.1:9050' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
        echo '        https: socks5://127.0.0.1:9050' >> ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
    fi

    chown -R searx:searx ${SEARCH_ENGINE_PATH}/searx

    # enable the site
    nginx_ensite searx

    # restart the web server
    systemctl restart php5-fpm
    systemctl restart nginx

    # start the daemon
    systemctl enable searx.service
    systemctl daemon-reload
    systemctl start searx.service

    if ! grep -q "Your search engine password is" /home/$MY_USERNAME/README; then
        if [ ${#SEARCH_ENGINE_PASSWORD} -lt 8 ]; then
            if [ -f $IMAGE_PASSWORD_FILE ]; then
                SEARCH_ENGINE_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
            else
                SEARCH_ENGINE_PASSWORD="$(openssl rand -base64 18 | cut -c1-16)"
            fi
        fi
        echo "$SEARCH_ENGINE_PASSWORD" | htpasswd -i -s -c /etc/nginx/.htpasswd $MY_USERNAME
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'Search Engine' >> /home/$MY_USERNAME/README
        echo '=============' >> /home/$MY_USERNAME/README
        echo $"Search engine onion domain: ${SEARCH_ENGINE_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Your search engine password is: $SEARCH_ENGINE_PASSWORD" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_search_engine' >> $COMPLETION_FILE
}

function install_hubzilla {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! $HUBZILLA_DOMAIN_NAME ]; then
        return
    fi

    HUBZILLA_PATH=/var/www/$HUBZILLA_DOMAIN_NAME/htdocs

    # update to a new commit if needed
    set_repo_commit $HUBZILLA_PATH "Hubzilla commit" "$HUBZILLA_COMMIT" $HUBZILLA_REPO
    set_repo_commit $HUBZILLA_PATH "Hubzilla addons commit" "$HUBZILLA_ADDONS_COMMIT" $HUBZILLA_ADDONS_REPO
    if [ -d $HUBZILLA_PATH/redmatrix-themes1 ]; then
        cd $HUBZILLA_PATH/redmatrix-themes1
        git stash
        git pull
        cp -r $HUBZILLA_PATH/redmatrix-themes1/* $HUBZILLA_PATH/view/theme/
        chown -R www-data:www-data $HUBZILLA_PATH
    fi

    if grep -Fxq "install_hubzilla" $COMPLETION_FILE; then
        return
    fi

    install_mariadb
    get_mariadb_password
    repair_databases_script

    apt-get -y install php5-common php5-cli php5-curl php5-gd php5-mysql php5-mcrypt git
    apt-get -y install php5-dev imagemagick php5-imagick

    if [ ! -d /var/www/$HUBZILLA_DOMAIN_NAME ]; then
        mkdir /var/www/$HUBZILLA_DOMAIN_NAME
    fi
    if [ ! -d $HUBZILLA_PATH ]; then
        mkdir $HUBZILLA_PATH
    fi

    if [ ! -f $HUBZILLA_PATH/index.php ]; then
        cd $INSTALL_DIR
        git_clone $HUBZILLA_REPO hubzilla
        git checkout $HUBZILLA_COMMIT -b $HUBZILLA_COMMIT
        if ! grep -q "Hubzilla commit" $COMPLETION_FILE; then
            echo "Hubzilla commit:$HUBZILLA_COMMIT" >> $COMPLETION_FILE
        else
            sed -i "s/Hubzilla commit.*/Hubzilla commit:$HUBZILLA_COMMIT/g" $COMPLETION_FILE
        fi

        rm -rf $HUBZILLA_PATH
        mv hubzilla $HUBZILLA_PATH

        git_clone $HUBZILLA_ADDONS_REPO $HUBZILLA_PATH/addon
        cd $HUBZILLA_PATH/addon
        git checkout $HUBZILLA_ADDONS_COMMIT -b $HUBZILLA_ADDONS_COMMIT
        if ! grep -q "Hubzilla addons commit" $COMPLETION_FILE; then
            echo "Hubzilla addons commit:$HUBZILLA_ADDONS_COMMIT" >> $COMPLETION_FILE
        else
            sed -i "s/Hubzilla addons commit.*/Hubzilla addons commit:$HUBZILLA_ADDONS_COMMIT/g" $COMPLETION_FILE
        fi

        # some extra themes
        git_clone $HUBZILLA_THEMES_REPO $HUBZILLA_PATH/redmatrix-themes1
        cp -r $HUBZILLA_PATH/redmatrix-themes1/* $HUBZILLA_PATH/view/theme/

        chown -R www-data:www-data $HUBZILLA_PATH
    fi

    HUBZILLA_ONION_HOSTNAME=
    if [[ $ONION_ONLY != "no" ]]; then
        HUBZILLA_ONION_HOSTNAME=$(add_onion_service hubzilla 80 ${HUBZILLA_ONION_PORT})
        echo "Hubzilla onion domain:${HUBZILLA_ONION_HOSTNAME}" >> $COMPLETION_FILE
    fi

    get_mariadb_hubzilla_admin_password
    if [ ! $HUBZILLA_ADMIN_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            HUBZILLA_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            HUBZILLA_ADMIN_PASSWORD="$(openssl rand -base64 32 | cut -c1-30)"
        fi
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo 'Hubzilla' >> /home/$MY_USERNAME/README
        echo '========' >> /home/$MY_USERNAME/README
        if [[ $ONION_ONLY == 'no' ]]; then
            echo $"Open https://$HUBZILLA_DOMAIN_NAME and register a new user" >> /home/$MY_USERNAME/README
        else
            echo $"Open http://$HUBZILLA_ONION_HOSTNAME and register a new user" >> /home/$MY_USERNAME/README
        fi
        echo $"Your MariaDB Hubzilla admin password is: $HUBZILLA_ADMIN_PASSWORD" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    create_database hubzilla "$HUBZILLA_ADMIN_PASSWORD"

    if ! grep -q "$HUBZILLA_PATH" /etc/crontab; then
        echo "12,22,32,42,52 * *   *   *   root cd $HUBZILLA_PATH; /usr/bin/timeout 500 /usr/bin/php include/poller.php" >> /etc/crontab
    fi

    add_ddns_domain $HUBZILLA_DOMAIN_NAME

    if [[ $ONION_ONLY == "no" ]]; then
        nginx_http_redirect $HUBZILLA_DOMAIN_NAME
        echo 'server {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    listen 443 ssl;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    root $HUBZILLA_PATH;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    server_name $HUBZILLA_DOMAIN_NAME;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${HUBZILLA_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        nginx_limits $HUBZILLA_DOMAIN_NAME
        nginx_ssl $HUBZILLA_DOMAIN_NAME
        nginx_disable_sniffing $HUBZILLA_DOMAIN_NAME
        echo '    add_header Strict-Transport-Security max-age=15768000;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_read_timeout 300;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
    else
        echo 'server {' > /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    listen 127.0.0.1:${HUBZILLA_ONION_PORT} default_server;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    root $HUBZILLA_PATH;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    server_name $HUBZILLA_ONION_HOSTNAME;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    error_log /var/log/nginx/${HUBZILLA_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    index index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    charset utf-8;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    access_log off;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        nginx_limits $HUBZILLA_DOMAIN_NAME
        nginx_disable_sniffing $HUBZILLA_DOMAIN_NAME
        echo '    add_header Strict-Transport-Security max-age=15768000;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location / {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        allow all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        expires 30d;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # block these file types' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # or a unix socket' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        fastcgi_read_timeout 300;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~ /\. {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '        deny all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '      deny  all;' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '    }' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
        echo '}' >> /etc/nginx/sites-available/$HUBZILLA_DOMAIN_NAME
    fi

    configure_php

    create_site_certificate $HUBZILLA_DOMAIN_NAME 'yes'

    if [ ! -d $HUBZILLA_PATH/view/tpl/smarty3 ]; then
        mkdir $HUBZILLA_PATH/view/tpl/smarty3
    fi
    if [ ! -d "$HUBZILLA_PATH/store" ]; then
        mkdir "$HUBZILLA_PATH/store"
    fi
    if [ ! -d "$HUBZILLA_PATH/store/[data]" ]; then
        mkdir "$HUBZILLA_PATH/store/[data]"
    fi
    if [ ! -d "$HUBZILLA_PATH/store/[data]/smarty3" ]; then
        mkdir "$HUBZILLA_PATH/store/[data]/smarty3"
        chmod 777 "$HUBZILLA_PATH/store/[data]/smarty3"
    fi
    chmod 777 $HUBZILLA_PATH/view/tpl
    chown -R www-data:www-data "$HUBZILLA_PATH/store"
    chmod 777 $HUBZILLA_PATH/view/tpl/smarty3

    # Ensure that the database gets backed up locally, if remote
    # backups are not being used
    backup_databases_script_header

    backup_database_local hubzilla

    chown -R www-data:www-data $HUBZILLA_PATH

    nginx_ensite $HUBZILLA_DOMAIN_NAME

    # initialize the database
    if [ ! -f $HUBZILLA_PATH/install/schema_mysql.sql ]; then
        echo $'No database schema found for hubzilla'
        exit 252782
    fi
    mysql -u root --password="$MARIADB_PASSWORD" -D hubzilla < $HUBZILLA_PATH/install/schema_mysql.sql
    if [ ! "$?" = "0" ]; then
        exit 62952
    fi

    # create the config file
    echo '<?php' > $HUBZILLA_PATH/.htconfig.php
    echo "\$db_host = 'localhost';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$db_port = '0';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$db_user = 'root';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$db_pass = '${MARIADB_PASSWORD}';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$db_data = 'hubzilla';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$db_type = '0';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$default_timezone = 'Europe/London';" >> $HUBZILLA_PATH/.htconfig.php
    if [[ $ONION_ONLY == 'no' ]]; then
        echo "\$a->config['system']['baseurl'] = 'https://${HUBZILLA_DOMAIN_NAME}';" >> $HUBZILLA_PATH/.htconfig.php
    else
        echo "\$a->config['system']['baseurl'] = 'http://${HUBZILLA_ONION_HOSTNAME}';" >> $HUBZILLA_PATH/.htconfig.php
    fi
    echo "\$a->config['system']['sitename'] = \"Hubzilla\";" >> $HUBZILLA_PATH/.htconfig.php
    HUBZILLA_LOCATION_HASH="$(openssl rand -base64 32 | cut -c1-30)"
    echo "\$a->config['system']['location_hash'] = '${HUBZILLA_LOCATION_HASH}';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['register_policy'] = REGISTER_OPEN;" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['register_text'] = '';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['admin_email'] = '${MY_EMAIL_ADDRESS}';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['verify_email'] = 1;" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['access_policy'] = ACCESS_PRIVATE;" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['sellpage'] = '';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['max_import_size'] = 200000;" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['php_path'] = '/usr/bin/php';" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['directory_mode']  = DIRECTORY_MODE_NORMAL;" >> $HUBZILLA_PATH/.htconfig.php
    echo "\$a->config['system']['theme'] = 'redbasic';" >> $HUBZILLA_PATH/.htconfig.php
    chown www-data:www-data $HUBZILLA_PATH/.htconfig.php
    chmod 755 $HUBZILLA_PATH/.htconfig.php

    systemctl restart php5-fpm
    systemctl restart nginx
    systemctl restart cron

    freedombone-addemail -u $MY_USERNAME -e "noreply@$HUBZILLA_DOMAIN_NAME" -g hubzilla --public no

    echo "Hubzilla domain:${HUBZILLA_DOMAIN_NAME}" >> $COMPLETION_FILE
    echo 'install_hubzilla' >> $COMPLETION_FILE
}

function script_for_attaching_usb_drive {
    if grep -Fxq "script_for_attaching_usb_drive" $COMPLETION_FILE; then
        return
    fi
    echo '#!/bin/bash' > /usr/bin/attach-music
    echo 'remove-music' >> /usr/bin/attach-music
    echo "if [ ! -d $USB_MOUNT ]; then" >> /usr/bin/attach-music
    echo "  mkdir $USB_MOUNT" >> /usr/bin/attach-music
    echo 'fi' >> /usr/bin/attach-music
    echo "mount /dev/sda1 $USB_MOUNT" >> /usr/bin/attach-music
    echo "chown root:root $USB_MOUNT" >> /usr/bin/attach-music
    echo "chown -R minidlna:minidlna $USB_MOUNT/*" >> /usr/bin/attach-music
    echo 'service minidlna restart' >> /usr/bin/attach-music
    echo 'minidlnad -R' >> /usr/bin/attach-music
    chmod +x /usr/bin/attach-music
    ln -s /usr/bin/attach-music /usr/bin/attach-usb
    ln -s /usr/bin/attach-music /usr/bin/attach-videos
    ln -s /usr/bin/attach-music /usr/bin/attach-pictures
    ln -s /usr/bin/attach-music /usr/bin/attach-media

    echo '#!/bin/bash' > /usr/bin/remove-music
    echo "if [ -d $USB_MOUNT ]; then" >> /usr/bin/remove-music
    echo "  umount $USB_MOUNT" >> /usr/bin/remove-music
    echo "  rm -rf $USB_MOUNT" >> /usr/bin/remove-music
    echo 'fi' >> /usr/bin/remove-music
    chmod +x /usr/bin/remove-music
    ln -s /usr/bin/remove-music /usr/bin/detach-music
    ln -s /usr/bin/remove-music /usr/bin/detach-usb
    ln -s /usr/bin/remove-music /usr/bin/remove-usb
    ln -s /usr/bin/remove-music /usr/bin/detach-media
    ln -s /usr/bin/remove-music /usr/bin/remove-media
    ln -s /usr/bin/remove-music /usr/bin/detach-videos
    ln -s /usr/bin/remove-music /usr/bin/remove-videos
    ln -s /usr/bin/remove-music /usr/bin/detach-pictures
    ln -s /usr/bin/remove-music /usr/bin/remove-pictures

    echo 'script_for_attaching_usb_drive' >> $COMPLETION_FILE
}

function install_dlna_server {
    if grep -Fxq "install_dlna_server" $COMPLETION_FILE; then
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    apt-get -y install minidlna

    if [ ! -f /etc/minidlna.conf ]; then
        echo $"ERROR: minidlna does not appear to have installed. $CHECK_MESSAGE"
        exit 55
    fi

    sed -i "s|media_dir=/var/lib/minidlna|media_dir=A,/home/$MY_USERNAME/Music|g" /etc/minidlna.conf
    if ! grep -q "/home/$MY_USERNAME/Pictures" /etc/minidlna.conf; then
        echo "media_dir=P,/home/$MY_USERNAME/Pictures" >> /etc/minidlna.conf
    fi
    if ! grep -q "/home/$MY_USERNAME/Videos" /etc/minidlna.conf; then
        echo "media_dir=V,/home/$MY_USERNAME/Videos" >> /etc/minidlna.conf
    fi
    if ! grep -q "$USB_MOUNT/Music" /etc/minidlna.conf; then
        echo "media_dir=A,$USB_MOUNT/Music" >> /etc/minidlna.conf
    fi
    if ! grep -q "$USB_MOUNT/Pictures" /etc/minidlna.conf; then
        echo "media_dir=P,$USB_MOUNT/Pictures" >> /etc/minidlna.conf
    fi
    if ! grep -q "$USB_MOUNT/Videos" /etc/minidlna.conf; then
        echo "media_dir=V,$USB_MOUNT/Videos" >> /etc/minidlna.conf
    fi
    sed -i 's/#root_container=./root_container=B/g' /etc/minidlna.conf
    if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        sed -i 's/#network_interface=/network_interface=eth0/g' /etc/minidlna.conf
    else
        sed -i 's/#network_interface=/network_interface=$WIFI_INTERFACE/g' /etc/minidlna.conf
    fi
    sed -i "s/#friendly_name=/friendly_name=\"${PROJECT_NAME} Media\"/g" /etc/minidlna.conf
    sed -i 's|#db_dir=/var/cache/minidlna|db_dir=/var/cache/minidlna|g' /etc/minidlna.conf
    sed -i 's/#inotify=yes/inotify=yes/g' /etc/minidlna.conf
    sed -i 's/#notify_interval=895/notify_interval=300/g' /etc/minidlna.conf
    sed -i "s|#presentation_url=/|presentation_url=http://localhost:8200|g" /etc/minidlna.conf
    service minidlna force-reload
    service minidlna reload

    sed -i 's/fs.inotify.max_user_watches*/fs.inotify.max_user_watches=65536/g' /etc/sysctl.conf
    if ! grep -q "max_user_watches" $COMPLETION_FILE; then
        echo 'fs.inotify.max_user_watches=65536' >> /etc/sysctl.conf
    fi
    /sbin/sysctl -p


    echo 'install_dlna_server' >> $COMPLETION_FILE
}

function install_mediagoblin {
    if [[ $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [ ! $MEDIAGOBLIN_DOMAIN_NAME ]; then
        return
    fi

    MEDIAGOBLIN_WORKING_DIRECTORY=/var/www/$MEDIAGOBLIN_DOMAIN_NAME/htdocs

    # update to a new commit if needed
    set_repo_commit $MEDIAGOBLIN_WORKING_DIRECTORY "Mediagoblin commit" "$MEDIAGOBLIN_COMMIT" $MEDIAGOBLIN_REPO
    if [ -d $MEDIAGOBLIN_WORKING_DIRECTORY ]; then
        chown -hR mediagoblin:www-data $MEDIAGOBLIN_WORKING_DIRECTORY
    fi

    if grep -Fxq "install_mediagoblin" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install git-core python python-dev python-lxml python-pil
    apt-get -y install python-virtualenv npm nodejs-legacy automake
    apt-get -y install fcgiwrap

    #apt-get -y install postgresql postgresql-client python-psycopg2
    #apt-get -y install python-gst-1.0 libjpeg62-turbo-dev gstreamer1.0-plugins-base python-gobject
    #apt-get -y install gstreamer1.0-plugins-good gstreamer1.0-libav libav-tools gstreamer0.10-tools
    #apt-get -y install python-numpy python-scipy libsndfile1-dev python-gst0.10-dev
    #apt-get -y install gstreamer0.10-plugins-base gstreamer0.10-plugins-good gstreamer1.0-tools
    #su -c "createuser -A -D mediagoblin" - postgres
    #su -c "createdb -E UNICODE -O mediagoblin mediagoblin" - postgres

    useradd -c "GNU MediaGoblin system account" -d /var/lib/mediagoblin -m -r -g www-data mediagoblin
    groupadd mediagoblin
    usermod --append -G mediagoblin mediagoblin

    if [ ! -d $MEDIAGOBLIN_WORKING_DIRECTORY ]; then
        mkdir -p $MEDIAGOBLIN_WORKING_DIRECTORY
    fi

    git_clone $MEDIAGOBLIN_REPO $MEDIAGOBLIN_WORKING_DIRECTORY
    cd $MEDIAGOBLIN_WORKING_DIRECTORY
    git checkout $MEDIAGOBLIN_COMMIT -b $MEDIAGOBLIN_COMMIT
    git submodule init
    git submodule update

    if ! grep -q "Mediagoblin commit" $COMPLETION_FILE; then
        echo "Mediagoblin commit:$MEDIAGOBLIN_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/Mediagoblin commit.*/Mediagoblin commit:$MEDIAGOBLIN_COMMIT/g" $COMPLETION_FILE
    fi

    chown -hR mediagoblin:www-data $MEDIAGOBLIN_WORKING_DIRECTORY
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bootstrap.sh" - mediagoblin
    if [ ! "$?" = "0" ]; then
        exit 278826
    fi

    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./configure" - mediagoblin
    if [ ! "$?" = "0" ]; then
        exit 462826
    fi

    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && make" - mediagoblin
    if [ ! "$?" = "0" ]; then
        exit 738229
    fi

    if [ ! -d $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev ]; then
        mkdir $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev
    fi
    chmod 750 $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install flup==1.0.3.dev-20110405" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade billiard" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade Paste" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade amqp" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade anyjson" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade py-bcrypt" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade wtforms" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade python-dateutil" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade alembic" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade waitress" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade imagesize" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade alabaster" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade snowballstemmer" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade docutils" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade Pygments" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade beautifulsoup4" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade WebOb" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade py" - mediagoblin
    su -c "cd $MEDIAGOBLIN_WORKING_DIRECTORY && ./bin/easy_install --upgrade execnet" - mediagoblin

    # create some directories
    mkdir /var/log/mediagoblin
    chown -hR mediagoblin:www-data /var/log/mediagoblin
    mkdir /var/run/mediagoblin
    chown -hR mediagoblin:www-data /var/run/mediagoblin

    if [ ! -f $MEDIAGOBLIN_WORKING_DIRECTORY/mediagoblin.ini ]; then
        echo $'mediagoblin.ini not found'
        exit 737529
    fi
    if [ ! -f $MEDIAGOBLIN_WORKING_DIRECTORY/paste.ini ]; then
        echo $'paste.ini not found'
        exit 52762
    fi

    cp -av mediagoblin.ini mediagoblin_local.ini
    cp -av paste.ini paste_local.ini

    chown -hR mediagoblin:www-data $MEDIAGOBLIN_WORKING_DIRECTORY

    # init with systemd
    echo '[Unit]' > /etc/systemd/system/mediagoblin-celeryd.service
    echo 'Description=Mediagoblin Celeryd' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'After=syslog.target' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'After=network.target' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '[Service]' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'User=mediagoblin' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'Group=mediagoblin' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'Type=simple' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo "WorkingDirectory=$MEDIAGOBLIN_WORKING_DIRECTORY" >> /etc/systemd/system/mediagoblin-celeryd.service
    echo "Environment=MEDIAGOBLIN_CONFIG=$MEDIAGOBLIN_WORKING_DIRECTORY/mediagoblin_local.ini \\" >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '    CELERY_CONFIG_MODULE=mediagoblin.init.celery.from_celery' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo "ExecStart=$MEDIAGOBLIN_WORKING_DIRECTORY/bin/celery worker \\" >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '    --logfile=/var/log/mediagoblin/celery.log \' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '    --loglevel=INFO' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'PIDFile=/var/run/mediagoblin/mediagoblin-celeryd.pid' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo '[Install]' >> /etc/systemd/system/mediagoblin-celeryd.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/mediagoblin-celeryd.service

    echo '[Unit]' > /etc/systemd/system/mediagoblin-paster.service
    echo 'Description=Mediagoblin' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'After=syslog.target' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'After=network.target' >> /etc/systemd/system/mediagoblin-paster.service
    echo '' >> /etc/systemd/system/mediagoblin-paster.service
    echo '[Service]' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'Type=forking' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'User=mediagoblin' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'Group=mediagoblin' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'Environment=CELERY_ALWAYS_EAGER=false' >> /etc/systemd/system/mediagoblin-paster.service
    echo "WorkingDirectory=$MEDIAGOBLIN_WORKING_DIRECTORY" >> /etc/systemd/system/mediagoblin-paster.service
    echo "ExecStart=$MEDIAGOBLIN_WORKING_DIRECTORY/bin/paster serve \\" >> /etc/systemd/system/mediagoblin-paster.service
    echo "    $MEDIAGOBLIN_WORKING_DIRECTORY/paste_local.ini \\" >> /etc/systemd/system/mediagoblin-paster.service
    echo '    --pid-file=/var/run/mediagoblin/mediagoblin.pid \' >> /etc/systemd/system/mediagoblin-paster.service
    echo '    --log-file=/var/log/mediagoblin/mediagoblin.log \' >> /etc/systemd/system/mediagoblin-paster.service
    echo '    --daemon \' >> /etc/systemd/system/mediagoblin-paster.service
    echo '    --server-name=fcgi fcgi_host=127.0.0.1 fcgi_port=26543' >> /etc/systemd/system/mediagoblin-paster.service
    echo "ExecStop=$MEDIAGOBLIN_WORKING_DIRECTORY/bin/paster serve \\" >> /etc/systemd/system/mediagoblin-paster.service
    echo '    --pid-file=/var/run/mediagoblin/mediagoblin.pid \' >> /etc/systemd/system/mediagoblin-paster.service
    echo "    $MEDIAGOBLIN_WORKING_DIRECTORY/paste_local.ini stop" >> /etc/systemd/system/mediagoblin-paster.service
    echo 'PIDFile=/var/run/mediagoblin/mediagoblin.pid' >> /etc/systemd/system/mediagoblin-paster.service
    echo '' >> /etc/systemd/system/mediagoblin-paster.service
    echo '[Install]' >> /etc/systemd/system/mediagoblin-paster.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/mediagoblin-paster.service
    systemctl daemon-reload
    systemctl enable mediagoblin-celeryd
    systemctl enable mediagoblin-paster
    systemctl daemon-reload
    systemctl start mediagoblin-celeryd
    systemctl start mediagoblin-paster

    MEDIAGOBLIN_ONION_HOSTNAME=$(add_onion_service mediagoblin 80 ${MEDIAGOBLIN_ONION_PORT})
    if ! grep -q "Mediagoblin onion domain" $COMPLETION_FILE; then
        echo "Mediagoblin onion domain:${MEDIAGOBLIN_ONION_HOSTNAME}" >> $COMPLETION_FILE
    else
        sed -i "s|Mediagoblin onion domain.*|Mediagoblin onion domain:${MEDIAGOBLIN_ONION_HOSTNAME}|g" $COMPLETION_FILE
    fi
    if [[ $MEDIAGOBLIN_ONION_HOSTNAME == *"not found"* ]]; then
        echo $'Problem creating onion address for mediagoblin'
        exit 672652
    fi

    # web config
    MEDIAGOBLIN_VIRTUAL_HOST=/etc/nginx/sites-available/$MEDIAGOBLIN_DOMAIN_NAME
    nginx_http_redirect $MEDIAGOBLIN_DOMAIN_NAME
    if [[ $ONION_ONLY == 'no' ]]; then
        echo 'server {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  listen 443 ssl;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  #################################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Stock useful config options, but ignore them :)' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  #################################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  include /etc/nginx/mime.types;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  autoindex off;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  default_type  application/octet-stream;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  sendfile on;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        nginx_limits $MEDIAGOBLIN_DOMAIN_NAME '20m'
        nginx_ssl $MEDIAGOBLIN_DOMAIN_NAME
        nginx_disable_sniffing $MEDIAGOBLIN_DOMAIN_NAME
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Gzip' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  gzip on;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  gzip_min_length 1024;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  gzip_buffers 4 32k;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  gzip_types text/plain application/x-javascript text/javascript text/xml text/css;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  #####################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Mounting MediaGoblin stuff' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # This is the section you should read' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  #####################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo "  server_name $MEDIAGOBLIN_DOMAIN_NAME;" >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  access_log /var/log/nginx/mediagoblin.log;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  error_log /var/log/nginx/mediagoblin.error.log;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # MediaGoblins stock static files: CSS, JS, etc.' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  location /mgoblin_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/mediagoblin/static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Instance specific media:' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  location /mgoblin_media/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/media/public/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Theme static files (usually symlinked in)' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  location /theme_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/theme_static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Plugin static files (usually symlinked in)' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  location /plugin_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/plugin_static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  # Mounting MediaGoblin itself via FastCGI.' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  location / {' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '    fastcgi_pass 127.0.0.1:26543;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '    include /etc/nginx/fastcgi_params;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '    # our understanding vs nginxs handling of script_name vs' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '      # path_info dont match :)' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '    fastcgi_param PATH_INFO $fastcgi_script_name;' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '    fastcgi_param SCRIPT_NAME "";' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '}' >> $MEDIAGOBLIN_VIRTUAL_HOST
        echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    else
        echo -n '' > $MEDIAGOBLIN_VIRTUAL_HOST
    fi

    echo 'server {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "  listen 127.0.0.1:${MEDIAGOBLIN_ONION_PORT} default_server;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  #################################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Stock useful config options, but ignore them :)' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  #################################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  include /etc/nginx/mime.types;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  autoindex off;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  default_type  application/octet-stream;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  sendfile on;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    nginx_limits $MEDIAGOBLIN_DOMAIN_NAME '20m'
    nginx_disable_sniffing $MEDIAGOBLIN_DOMAIN_NAME
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Gzip' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  gzip on;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  gzip_min_length 1024;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  gzip_buffers 4 32k;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  gzip_types text/plain application/x-javascript text/javascript text/xml text/css;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  #####################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Mounting MediaGoblin stuff' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # This is the section you should read' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  #####################################' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "  server_name $MEDIAGOBLIN_ONION_HOSTNAME;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  access_log /var/log/nginx/mediagoblin.log;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  error_log /var/log/nginx/mediagoblin.error.log;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # MediaGoblins stock static files: CSS, JS, etc.' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  location /mgoblin_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/mediagoblin/static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Instance specific media:' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  location /mgoblin_media/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/media/public/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Theme static files (usually symlinked in)' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  location /theme_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/theme_static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Plugin static files (usually symlinked in)' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  location /plugin_static/ {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo "    alias $MEDIAGOBLIN_WORKING_DIRECTORY/user_dev/plugin_static/;" >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  # Mounting MediaGoblin itself via FastCGI.' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  location / {' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '    fastcgi_pass 127.0.0.1:26543;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '    include /etc/nginx/fastcgi_params;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '    # our understanding vs nginxs handling of script_name vs' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '      # path_info dont match :)' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '    fastcgi_param PATH_INFO $fastcgi_script_name;' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '    fastcgi_param SCRIPT_NAME "";' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '  }' >> $MEDIAGOBLIN_VIRTUAL_HOST
    echo '}' >> $MEDIAGOBLIN_VIRTUAL_HOST

    create_site_certificate $MEDIAGOBLIN_DOMAIN_NAME

    nginx_ensite $MEDIAGOBLIN_DOMAIN_NAME
    systemctl restart php5-fpm
    systemctl restart nginx

    add_ddns_domain $MEDIAGOBLIN_DOMAIN_NAME

    if ! grep -q "Mediagoblin domain" $COMPLETION_FILE; then
        echo "Mediagoblin domain:$MEDIAGOBLIN_DOMAIN_NAME" >> $COMPLETION_FILE
    else
        sed -i "s/Mediagoblin domain.*/Mediagoblin domain:$MEDIAGOBLIN_DOMAIN_NAME/g" $COMPLETION_FILE
    fi

    echo 'install_mediagoblin' >> $COMPLETION_FILE
}

function create_upgrade_script {
    if [ -f /usr/local/bin/${PROJECT_NAME}-upgrade ]; then
        cp /usr/local/bin/${PROJECT_NAME}-upgrade /etc/cron.weekly/$UPGRADE_SCRIPT_NAME
    else
        cp /usr/bin/${PROJECT_NAME}-upgrade /etc/cron.weekly/$UPGRADE_SCRIPT_NAME
    fi

    if grep -Fxq "create_upgrade_script" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install unattended-upgrades

    echo 'create_upgrade_script' >> $COMPLETION_FILE
}

function intrusion_detection {
    if grep -Fxq "intrusion_detection" $COMPLETION_FILE; then
        return
    fi
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    apt-get -y install tripwire
    apt-get -y autoremove
    cd /etc/tripwire
    cp site.key $DEFAULT_DOMAIN_NAME-site.key
    echo '*** Installing intrusion detection ***'
    echo '

' | tripwire --init

    # make a script for easy resetting of the tripwire
    echo '#!/bin/sh' > /usr/bin/reset-tripwire
    echo 'tripwire --update-policy --secure-mode low /etc/tripwire/twpol.txt' >> /usr/bin/reset-tripwire
    chmod +x /usr/bin/reset-tripwire

    sed -i 's/SYSLOGREPORTING.*/SYSLOGREPORTING =false/g' /etc/tripwire/twcfg.txt
    # only send emails if something has changed
    sed -i 's|MAILNOVIOLATIONS.*|MAILNOVIOLATIONS = false|g' /etc/tripwire/twcfg.txt
    sed -i '/# These files change the behavior of the root account/,/}/ s/.*//g' /etc/tripwire/twpol.txt
    sed -i 's|/etc/rc.boot.*||g' /etc/tripwire/twpol.txt
    # Don't show any changes to /proc
    sed -i 's|/proc.*||g' /etc/tripwire/twpol.txt
    # Don't report log changes
    sed -i 's|/var/log.*||g' /etc/tripwire/twpol.txt
    # Ignore /etc/tripwire
    if ! grep -q '!/etc/tripwire' /etc/tripwire/twpol.txt; then
        sed -i '\|/etc\t\t->.*|a\    !/etc/tripwire ;' /etc/tripwire/twpol.txt
    fi
    # ignore tt-rss cache
    if ! grep -q '!/etc/share/tt-rss/cache' /etc/tripwire/twpol.txt; then
        sed -i '\|/etc\t\t->.*|a\    !/etc/share/tt-rss/cache ;' /etc/tripwire/twpol.txt
    fi
    if ! grep -q '!/etc/share/tt-rss/lock' /etc/tripwire/twpol.txt; then
        sed -i '\|/etc\t\t->.*|a\    !/etc/share/tt-rss/lock ;' /etc/tripwire/twpol.txt
    fi
    # Avoid logging the changed database
    sed -i 's|$(TWETC)/tw.pol.*||g' /etc/tripwire/twpol.txt
    # recreate the configuration
    echo '

       ' | twadmin --create-cfgfile -S /etc/tripwire/site.key /etc/tripwire/twcfg.txt
    # reset
    echo '



       ' | reset-tripwire

    echo 'intrusion_detection' >> $COMPLETION_FILE
}

# see https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy
# Local Redirection and Anonymizing Middlebox
function route_outgoing_traffic_through_tor {
    if grep -Fxq "route_outgoing_traffic_through_tor" $COMPLETION_FILE; then
        return
    fi
    if [[ $ROUTE_THROUGH_TOR != "yes" ]]; then
        return
    fi
    apt-get -y install tor tor-arm

    ### set variables
    # Destinations you don't want routed through Tor
    _non_tor="192.168.1.0/24 192.168.0.0/24"

    # The user that Tor runs as
    _tor_uid="debian-tor"

    # Tor's TransPort
    _trans_port="9040"

    # Your internal interface
    _int_if="eth0"

    ### Set iptables *nat
    iptables -t nat -A OUTPUT -o lo -j RETURN
    iptables -t nat -A OUTPUT -m owner --uid-owner $_tor_uid -j RETURN
    iptables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports 53

    # Allow clearnet access for hosts in $_non_tor
    for _clearnet in $_non_tor; do
        iptables -t nat -A OUTPUT -d $_clearnet -j RETURN
        iptables -t nat -A PREROUTING -i $_int_if -d $_clearnet -j RETURN
    done

    # Redirect all other pre-routing and output to Tor
    iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports $_trans_port
    iptables -t nat -A PREROUTING -i $_int_if -p udp --dport 53 -j REDIRECT --to-ports 53
    iptables -t nat -A PREROUTING -i $_int_if -p tcp --syn -j REDIRECT --to-ports $_trans_port

    ### set iptables *filter
    iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

    # Allow clearnet access for hosts in $_non_tor
    for _clearnet in $_non_tor 127.0.0.0/8; do
        iptables -A OUTPUT -d $_clearnet -j ACCEPT
    done

    # Allow only Tor output
    iptables -A OUTPUT -m owner --uid-owner $_tor_uid -j ACCEPT
    iptables -A OUTPUT -j REJECT

    save_firewall_settings

    if ! grep -q "fs.file-max" /etc/sysctl.conf; then
        echo "fs.file-max=100000" >> /etc/sysctl.conf
        /sbin/sysctl -p
    fi

    echo 'domain localdomain' > /etc/resolv.conf
    echo 'search localdomain' >> /etc/resolv.conf
    echo 'nameserver 127.0.0.1' >> /etc/resolv.conf

    if ! grep -q "VirtualAddrNetworkIPv4" /etc/tor/torrc; then
        echo 'VirtualAddrNetworkIPv4 10.192.0.0/10' >> /etc/tor/torrc
    fi

    if ! grep -q "AutomapHostsOnResolve" /etc/tor/torrc; then
        echo 'AutomapHostsOnResolve 1' >> /etc/tor/torrc
    fi

    if ! grep -q "TransPort" /etc/tor/torrc; then
        echo 'TransPort 9040' >> /etc/tor/torrc
    fi

    if ! grep -q "TransListenAddress 127.0.0.1" /etc/tor/torrc; then
        echo 'TransListenAddress 127.0.0.1' >> /etc/tor/torrc
    fi

    if ! grep -q "TransListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" /etc/tor/torrc; then
        echo "TransListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" >> /etc/tor/torrc
    fi

    if ! grep -q "DNSPort" /etc/tor/torrc; then
        echo 'DNSPort 53' >> /etc/tor/torrc
    fi

    if ! grep -q "DNSListenAddress 127.0.0.1" /etc/tor/torrc; then
        echo 'DNSListenAddress 127.0.0.1' >> /etc/tor/torrc
    fi

    if ! grep -q "DNSListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" /etc/tor/torrc; then
        echo "DNSListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" >> /etc/tor/torrc
    fi

    echo 'route_outgoing_traffic_through_tor' >> $COMPLETION_FILE
}

# A command to create a git repository for a project
function create_git_project {
    if grep -Fxq "create_git_project" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install git

    echo '#!/bin/bash' > /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'GIT_PROJECT_NAME=$1' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'if [ ! $GIT_PROJECT_NAME ]; then' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '  echo "Please specify a project name, without any spaces"' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '  exit 1' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'fi' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'if [ ! -d /home/$USER/projects/$GIT_PROJECT_NAME ]; then' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '  mkdir -p /home/$USER/projects/$GIT_PROJECT_NAME' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'fi' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'cd /home/$USER/projects/$GIT_PROJECT_NAME' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'git init --bare' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo -n 'echo "Your project has been created, ' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'use the following command to clone the repository"' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo -n "  git clone ssh://$MY_USERNAME@$DEFAULT_DOMAIN_NAME:$SSH_PORT" >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '/home/$USER/projects/$GIT_PROJECT_NAME' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo '' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    echo 'exit 0' >> /usr/bin/$CREATE_GIT_PROJECT_COMMAND
    chmod +x /usr/bin/$CREATE_GIT_PROJECT_COMMAND

    echo 'create_git_project' >> $COMPLETION_FILE
}

function check_date {
    curr_date=$(date)
    if [[ $curr_date == *"1970"* ]]; then
        apt-get -y install ntp
    fi
}

function install_dynamicdns {
    if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
        return
    fi
    if [[ $ONION_ONLY != "no" ]]; then
        return
    fi

    # update to the next commit
    set_repo_commit $INSTALL_DIR/inadyn "inadyn commit" "$INADYN_COMMIT" $INADYN_REPO

    if grep -Fxq "install_dynamicdns" $COMPLETION_FILE; then
        return
    fi

    # Here we compile from source because the current package
    # doesn't support https, which could result in passwords
    # being leaked
    # Debian version 1.99.4-1
    # https version 1.99.8

    apt-get -y install build-essential curl libgnutls28-dev automake1.11
    if [ ! -d $INSTALL_DIR/inadyn ]; then
        git_clone $INADYN_REPO $INSTALL_DIR/inadyn
    fi
    if [ ! -d $INSTALL_DIR/inadyn ]; then
        echo 'inadyn repo not cloned'
        echo -n | openssl s_client -showcerts -connect github.com:443 -CApath /etc/ssl/certs
        exit 6785
    fi
    cd $INSTALL_DIR/inadyn
    git checkout $INADYN_COMMIT -b $INADYN_COMMIT
    if ! grep -q "inadyn commit" $COMPLETION_FILE; then
        echo "inadyn commit:$INADYN_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/inadyn commit.*/inadyn commit:$INADYN_COMMIT/g" $COMPLETION_FILE
    fi

    ./configure
    if [ ! "$?" = "0" ]; then
        exit 74890
    fi
    USE_OPENSSL=1 make
    if [ ! "$?" = "0" ]; then
        exit 74858
    fi
    make install
    if [ ! "$?" = "0" ]; then
        exit 3785
    fi

    # create an unprivileged user
    #useradd -r -s /bin/false debian-inadyn

    # create a configuration file
    echo 'background' > /etc/inadyn.conf
    echo 'verbose        1' >> /etc/inadyn.conf
    echo 'period         300' >> /etc/inadyn.conf
    echo 'startup-delay  60' >> /etc/inadyn.conf
    echo 'cache-dir      /run/inadyn' >> /etc/inadyn.conf
    echo 'logfile        /dev/null' >> /etc/inadyn.conf
    chmod 600 /etc/inadyn.conf

    echo '[Unit]' > /etc/systemd/system/inadyn.service
    echo 'Description=inadyn (DynDNS updater)' >> /etc/systemd/system/inadyn.service
    echo 'After=network.target' >> /etc/systemd/system/inadyn.service
    echo '' >> /etc/systemd/system/inadyn.service
    echo '[Service]' >> /etc/systemd/system/inadyn.service
    echo 'ExecStart=/usr/local/sbin/inadyn --config /etc/inadyn.conf' >> /etc/systemd/system/inadyn.service
    echo 'Restart=always' >> /etc/systemd/system/inadyn.service
    echo 'Type=forking' >> /etc/systemd/system/inadyn.service
    echo '' >> /etc/systemd/system/inadyn.service
    echo '[Install]' >> /etc/systemd/system/inadyn.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/inadyn.service
    systemctl enable inadyn
    systemctl start inadyn
    systemctl daemon-reload

    echo 'install_dynamicdns' >> $COMPLETION_FILE
}

function get_voip_server_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "VoIP server password" /home/$MY_USERNAME/README; then
            if [ ! $VOIP_SERVER_PASSWORD ]; then
                VOIP_SERVER_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "VoIP server password" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function get_sip_server_password {
    if [ -f /home/$MY_USERNAME/README ]; then
        if grep -q "SIP server password" /home/$MY_USERNAME/README; then
            if [ ! $SIP_SERVER_PASSWORD ]; then
                SIP_SERVER_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "SIP server password" | awk -F ':' '{print $2}' | sed 's/^ *//')
            fi
        fi
    fi
}

function install_ipfs {
    if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" ]]; then
        return
    fi

    export GOPATH=/home/git/go
    systemctl set-environment GOPATH=/home/git/go

    # update to the next commit
    set_repo_commit /home/git/go/src/github.com/ipfs/go-ipfs "ipfs commit" "$IPFS_COMMIT" $IPFS_REPO

    if grep -Fxq "install_ipfs" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install golang libpam0g-dev fuse

    if [ ! -d /home/git ]; then
        # add a gogs user account
        adduser --disabled-login --gecos 'Gogs' git

        # install Go
        if ! grep -q "export GOPATH=/home/git/go" ~/.bashrc; then
            echo 'export GOPATH=/home/git/go' >> ~/.bashrc
            echo 'systemctl set-environment GOPATH=/home/git/go' >> ~/.bashrc
        fi
        export GOPATH=/home/git/go
        if [ ! -d $GOPATH ]; then
            mkdir -p $GOPATH
        fi
    fi

    IPFS_PATH=/home/git/go/bin
    if ! grep -q 'GOPATH/bin' ~/.bashrc; then
        export PATH="$GOPATH/bin:$PATH:"
        echo 'export PATH="$GOPATH/bin:$PATH:";' >> ~/.bashrc
    fi

    # set gopath for the user
    if ! grep -q "GOPATH=" /home/$MY_USERNAME/.bashrc; then
        echo 'export GOPATH=/home/git/go' >> /home/$MY_USERNAME/.bashrc
        echo 'export PATH="$GOPATH/bin:$PATH:";' >> /home/$MY_USERNAME/.bashrc
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.bashrc
    fi

    IPFS_GO_REPO2=$(echo "$IPFS_GO_REPO" | sed 's|https://||g')
    go get -u ${IPFS_GO_REPO2}/cmd/ipfs
    if [ ! "$?" = "0" ]; then
        exit 8242
    fi

    cd /home/git/go/src/$IPFS_GO_REPO2
    git checkout $IPFS_COMMIT -b $IPFS_COMMIT
    if ! grep -q "ipfs commit" $COMPLETION_FILE; then
        echo "ipfs commit:$IPFS_COMMIT" >> $COMPLETION_FILE
    else
        sed -i "s/ipfs commit.*/ipfs commit:$IPFS_COMMIT/g" $COMPLETION_FILE
    fi

    # initialise
    su -c "$IPFS_PATH/ipfs init -b 4096" - $MY_USERNAME
    if [ ! -d /home/$MY_USERNAME/.ipfs ]; then
        echo "IPFS could not be initialised for user $MY_USERNAME"
        exit 7358
    fi

    # directories to mount to
    if [ ! -d /ipfs ]; then
        mkdir /ipfs
        mkdir /ipns
        chown $MY_USERNAME:$MY_USERNAME /ipfs
        chown $MY_USERNAME:$MY_USERNAME /ipns
    fi

    if [ -f /etc/fuse.conf ]; then
        chown $MY_USERNAME:$MY_USERNAME /etc/fuse.conf
    fi
    if [ -f /dev/fuse ]; then
        chown $MY_USERNAME:$MY_USERNAME /dev/fuse
    fi

    echo '[Unit]' > /etc/systemd/system/ipfs.service
    echo 'Description=IPFS daemon' >> /etc/systemd/system/ipfs.service
    echo 'After=syslog.target' >> /etc/systemd/system/ipfs.service
    echo 'After=network.target' >> /etc/systemd/system/ipfs.service
    echo '' >> /etc/systemd/system/ipfs.service
    echo '[Service]' >> /etc/systemd/system/ipfs.service
    echo 'Type=simple' >> /etc/systemd/system/ipfs.service
    echo "User=$MY_USERNAME" >> /etc/systemd/system/ipfs.service
    echo "Group=$MY_USERNAME" >> /etc/systemd/system/ipfs.service
    echo "WorkingDirectory=/home/$MY_USERNAME" >> /etc/systemd/system/ipfs.service
    echo "ExecStart=$IPFS_PATH/ipfs daemon --mount" >> /etc/systemd/system/ipfs.service
    echo 'Restart=on-failure' >> /etc/systemd/system/ipfs.service
    echo "Environment=\"USER=$MY_USERNAME\" \"HOME=/home/$MY_USERNAME\" \"GOPATH=/home/git/go\"" >> /etc/systemd/system/ipfs.service
    echo '' >> /etc/systemd/system/ipfs.service
    echo '[Install]' >> /etc/systemd/system/ipfs.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/ipfs.service

    systemctl enable ipfs
    systemctl daemon-reload
    systemctl restart ipfs

    if [ -d /etc/avahi ]; then
        su -c "echo $($IPFS_PATH/ipfs id | grep '\"ID\":' | awk -F '\"' '{print $4}') > /tmp/ipfsid" - $MY_USERNAME
        if [ ! -f /tmp/ipfsid ]; then
            echo 'No IPFS identity was created'
            exit 37895
        fi
        IPFS_PEER_ID=$(cat /tmp/ipfsid)
        if [ ${#IPFS_PEER_ID} -lt 10 ]; then
            echo 'Invalid IPFS peer ID'
            echo "$IPFS_PEER_ID"
            exit 74782
        fi
        # Add an avahi service
        echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /etc/avahi/services/ipfs.service
        echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /etc/avahi/services/ipfs.service
        echo '<service-group>' >> /etc/avahi/services/ipfs.service
        echo '  <name replace-wildcards="yes">%h IPFS</name>' >> /etc/avahi/services/ipfs.service
        echo '  <service>' >> /etc/avahi/services/ipfs.service
        echo '    <type>_ipfs._tcp</type>' >> /etc/avahi/services/ipfs.service
        echo "    <port>$IPFS_PORT</port>" >> /etc/avahi/services/ipfs.service
        echo "    <txt-record>$IPFS_PEER_ID</txt-record>" >> /etc/avahi/services/ipfs.service
        echo '  </service>' >> /etc/avahi/services/ipfs.service
        echo '</service-group>' >> /etc/avahi/services/ipfs.service
        rm /tmp/ipfsid
    fi

    echo 'install_ipfs' >> $COMPLETION_FILE
}

function install_voip {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "install_voip" $COMPLETION_FILE; then
        return
    fi
    apt-get -y install mumble-server

    get_voip_server_password
    if [ ! $VOIP_SERVER_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            VOIP_SERVER_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            VOIP_SERVER_PASSWORD="$(openssl rand -base64 18 | cut -c1-16)"
            if [ ${#VOIP_SERVER_PASSWORD} -lt $MINIMUM_PASSWORD_LENGTH ]; then
                VOIP_SERVER_PASSWORD="$(openssl rand -base64 18 | cut -c1-16)"
            fi
        fi
    fi

    # Make an ssl cert for the server
    if [ ! -f /etc/ssl/certs/mumble.dhparam ]; then
        ${PROJECT_NAME}-addcert -h mumble --dhkey $DH_KEYLENGTH
        check_certificates mumble
    fi

    # Check that the cert was created
    if [ ! -f /etc/ssl/certs/mumble.crt ]; then
        echo $'VoIP server certificate not created'
        exit 57892
    fi
    if [ ! -f /etc/ssl/private/mumble.key ]; then
        echo $'VoIP server key not created'
        exit 57893
    fi
    if [ ! -d /var/lib/mumble-server ]; then
        mkdir /var/lib/mumble-server
    fi
    cp /etc/ssl/certs/mumble.* /var/lib/mumble-server
    cp /etc/ssl/private/mumble.key /var/lib/mumble-server
    chown -R mumble-server:mumble-server /var/lib/mumble-server

    sed -i "s|welcometext=.*|welcometext=\"<br />Welcome to $DEFAULT_DOMAIN_NAME <b>VoIP</b>.<br />Chat freely!<br />\"|g" /etc/mumble-server.ini

    if [[ $VOIP_SERVER_PASSWORD && $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
        sed -i "s|serverpassword=.*|serverpassword=$VOIP_SERVER_PASSWORD|g" /etc/mumble-server.ini
    fi

    sed -i 's|#autobanAttempts.*|autobanAttempts = 10|g' /etc/mumble-server.ini
    sed -i 's|#autobanTimeframe.*|autobanTimeframe = 120|g' /etc/mumble-server.ini
    sed -i 's|#autobanTime.*|autobanTime = 300|g' /etc/mumble-server.ini
    sed -i 's|#sendversion=.*|sendversion=False|g' /etc/mumble-server.ini
    sed -i 's|sendversion=.*|sendversion=False|g' /etc/mumble-server.ini
    if ! grep -q "allowping" /etc/mumble-server.ini; then
        echo 'allowping=False' >> /etc/mumble-server.ini
    fi
    sed -i 's|allowping=.*|allowping=False|g' /etc/mumble-server.ini
    sed -i 's|#sslCert=.*|sslCert=/var/lib/mumble-server/mumble.crt|g' /etc/mumble-server.ini
    sed -i 's|#sslKey=.*|sslKey=/var/lib/mumble-server/mumble.key|g' /etc/mumble-server.ini
    sed -i 's|#certrequired=.*|certrequired=True|g' /etc/mumble-server.ini
    sed -i 's|users=100|users=10|g' /etc/mumble-server.ini
    sed -i 's|#channelnestinglimit=10|channelnestinglimit=10|g' /etc/mumble-server.ini
    sed -i 's|#textmessagelength=.*|textmessagelength=1000|g' /etc/mumble-server.ini
    sed -i 's|textmessagelength=.*|textmessagelength=1000|g' /etc/mumble-server.ini
    sed -i 's|#imagemessagelength=.*|imagemessagelength=131072|g' /etc/mumble-server.ini
    sed -i 's|#allowhtml=.*|allowhtml=False|g' /etc/mumble-server.ini
    sed -i 's|allowhtml=.*|allowhtml=False|g' /etc/mumble-server.ini
    sed -i "s|port=.*|port=${VOIP_PORT}|g" /etc/mumble-server.ini

    VOIP_ONION_HOSTNAME=$(add_onion_service voip ${VOIP_PORT} ${VOIP_PORT})
    if ! grep -q $"VoIP onion domain" $COMPLETION_FILE; then
        echo "VoIP onion domain:$VOIP_ONION_HOSTNAME" >> $COMPLETION_FILE
    fi

    systemctl restart mumble-server

    if ! grep -q $"VoIP Server" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'VoIP Server' >> /home/$MY_USERNAME/README
        echo '===========' >> /home/$MY_USERNAME/README
        echo $"VoIP onion domain:$VOIP_ONION_HOSTNAME" >> /home/$MY_USERNAME/README
        echo $'VoIP server username: mumble-server' >> /home/$MY_USERNAME/README
        if [[ $SYSTEM_TYPE != "VARIANT_MESH" ]]; then
            echo $"VoIP server password: $VOIP_SERVER_PASSWORD" >> /home/$MY_USERNAME/README
        fi
        echo '' >> /home/$MY_USERNAME/README
        echo $'To connect to the VoIP server use your username and the server password shown above.' >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_voip' >> $COMPLETION_FILE
}

function update_sipwitch_daemon {
    if [ ! -f /etc/init.d/sipwitch ]; then
        return
    fi
    service sipwitch stop

    # remove the original sipwitch daemon if it exists
    if [ -f /etc/init.d/sipwitch ]; then
        rm -f /etc/init.d/sipwitch
    fi

    # daemon
    echo '[Unit]' > /etc/systemd/system/sipwitch.service
    echo 'Description=GNU SIP Witch, a SIP telephony service daemon.' >> /etc/systemd/system/sipwitch.service
    echo 'After=network.target' >> /etc/systemd/system/sipwitch.service
    echo '' >> /etc/systemd/system/sipwitch.service
    echo '[Service]' >> /etc/systemd/system/sipwitch.service
    echo 'Type=simple' >> /etc/systemd/system/sipwitch.service
    echo 'Group=sipwitch' >> /etc/systemd/system/sipwitch.service
    echo 'PIDFile=/var/run/sipwitch/pidfile' >> /etc/systemd/system/sipwitch.service
    echo 'EnvironmentFile=-/etc/conf.d/sipwitch' >> /etc/systemd/system/sipwitch.service
    echo 'EnvironmentFile=-/etc/sipwitch.conf' >> /etc/systemd/system/sipwitch.service
    echo 'EnvironmentFile=-/etc/default/sipwitch' >> /etc/systemd/system/sipwitch.service
    echo 'ExecStartPre=-/bin/rm -f /var/run/sipwitch/control' >> /etc/systemd/system/sipwitch.service
    echo "ExecStart=/usr/sbin/sipw -f \$OPTIONS -P$SIP_PORT" >> /etc/systemd/system/sipwitch.service
    echo 'Restart=always' >> /etc/systemd/system/sipwitch.service
    echo 'NotifyAccess=main' >> /etc/systemd/system/sipwitch.service
    echo '' >> /etc/systemd/system/sipwitch.service
    echo '[Install]' >> /etc/systemd/system/sipwitch.service
    echo 'WantedBy=multi-user.target' >> /etc/systemd/system/sipwitch.service

    systemctl enable sipwitch
    systemctl daemon-reload
    systemctl start sipwitch
}

function install_sip {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "install_sip" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install sipwitch

    get_sip_server_password
    if [ ! $SIP_SERVER_PASSWORD ]; then
        if [ -f $IMAGE_PASSWORD_FILE ]; then
            SIP_SERVER_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
        else
            SIP_SERVER_PASSWORD="$(openssl rand -base64 12 | cut -c1-10)"
        fi
    fi

    echo '<?xml version="1.0"?>' > /etc/sipwitch.conf
    echo '<sipwitch>' >> /etc/sipwitch.conf
    echo '<provision>' >> /etc/sipwitch.conf

    echo "<user id=\"$MY_USERNAME\">" >> /etc/sipwitch.conf
    echo '<extension>201</extension>' >> /etc/sipwitch.conf
    echo "<secret>$SIP_SERVER_PASSWORD</secret>" >> /etc/sipwitch.conf
    echo "<display>$MY_USERNAME 201</display>" >> /etc/sipwitch.conf
    echo '</user>' >> /etc/sipwitch.conf

    echo '</provision>' >> /etc/sipwitch.conf
    echo '<access>' >> /etc/sipwitch.conf
    echo '</access>' >> /etc/sipwitch.conf
    echo '<stack>' >> /etc/sipwitch.conf
    echo "  <localnames>$DEFAULT_DOMAIN_NAME</localnames>" >> /etc/sipwitch.conf
    echo '  <mapped>200</mapped>' >> /etc/sipwitch.conf
    echo '  <threading>2</threading>' >> /etc/sipwitch.conf
    echo '  <interface>*</interface>' >> /etc/sipwitch.conf
    echo '  <dumping>false</dumping>' >> /etc/sipwitch.conf
    echo '  <system>system</system>' >> /etc/sipwitch.conf
    echo '  <anon>anonymous</anon>' >> /etc/sipwitch.conf
    echo '</stack>' >> /etc/sipwitch.conf
    echo '<timers>' >> /etc/sipwitch.conf
    echo '  <!-- ring every 4 seconds -->' >> /etc/sipwitch.conf
    echo '  <ring>4</ring>' >> /etc/sipwitch.conf
    echo '  <!-- call forward no answer after x rings -->' >> /etc/sipwitch.conf
    echo '  <cfna>4</cfna>' >> /etc/sipwitch.conf
    echo '  <!-- call reset to clear cid in stack, 6 seconds -->' >> /etc/sipwitch.conf
    echo '  <reset>6</reset>' >> /etc/sipwitch.conf
    echo '</timers>' >> /etc/sipwitch.conf
    echo '<!-- we have 2xx numbers plus space for external users -->' >> /etc/sipwitch.conf
    echo '<registry>' >> /etc/sipwitch.conf
    echo '  <prefix>200</prefix>' >> /etc/sipwitch.conf
    echo '  <range>100</range>' >> /etc/sipwitch.conf
    echo '  <keysize>77</keysize>' >> /etc/sipwitch.conf
    echo '  <mapped>200</mapped>' >> /etc/sipwitch.conf
    echo '  <!-- <realm>GNU Telephony</realm> -->' >> /etc/sipwitch.conf
    echo '</registry>' >> /etc/sipwitch.conf
    echo '<routing>' >> /etc/sipwitch.conf
    echo '</routing>' >> /etc/sipwitch.conf
    echo '</sipwitch>' >> /etc/sipwitch.conf

    sed -i 's|#PLUGINS=|PLUGINS=|g' /etc/default/sipwitch
    sed -i 's|PLUGINS=.*|PLUGINS="zeroconf subscriber forward"|g' /etc/default/sipwitch
    groupadd sipwitch
    usermod -aG sipwitch $MY_USERNAME

    SIP_ONION_HOSTNAME=$(add_onion_service sip ${SIP_PORT} ${SIP_PORT})
    if ! grep -q $"SIP onion domain" $COMPLETION_FILE; then
        echo "SIP onion domain:$SIP_ONION_HOSTNAME" >> $COMPLETION_FILE
    fi

    if ! grep -q $"SIP Server" /home/$MY_USERNAME/README; then
        echo '' >> /home/$MY_USERNAME/README
        echo '' >> /home/$MY_USERNAME/README
        echo $'SIP Server' >> /home/$MY_USERNAME/README
        echo '==========' >> /home/$MY_USERNAME/README
        echo $"SIP onion_domain: $SIP_ONION_HOSTNAME" >> /home/$MY_USERNAME/README
        echo $"SIP server username: $MY_USERNAME" >> /home/$MY_USERNAME/README
        echo $"SIP server extension: 201" >> /home/$MY_USERNAME/README
        echo $"SIP server password: $SIP_SERVER_PASSWORD" >> /home/$MY_USERNAME/README
        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
        chmod 600 /home/$MY_USERNAME/README
    fi

    echo 'install_sip' >> $COMPLETION_FILE
}

function install_sip_turn {
    if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
        return
    fi
    if grep -Fxq "install_sip_turn" $COMPLETION_FILE; then
        return
    fi

    apt-get -y install turnserver

    # create a nonce if needed
    if [ ! $VOIP_TURN_NONCE ]; then
        VOIP_TURN_NONCE="$(openssl rand -base64 32 | cut -c1-30)"
    fi

    create_site_certificate $DEFAULT_DOMAIN_NAME

    echo '##' > /etc/turnserver/turnserver.conf
    echo '# TurnServer configuration file.' >> /etc/turnserver/turnserver.conf
    echo '#' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Public IPv4 address of any relayed address (if not set, no relay for IPv4).' >> /etc/turnserver/turnserver.conf
    echo '## To have multiple address, separate addresses with a comma' >> /etc/turnserver/turnserver.conf
    echo '## (i.e. listen_address = { "172.16.0.1", "172.17.0.1" }).' >> /etc/turnserver/turnserver.conf
    echo "listen_address = { \"192.168.0.1\" }" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Public IPv6 address of any relayed address (if not set, no relay for IPv6).' >> /etc/turnserver/turnserver.conf
    echo '## To have multiple address, separate address with a comma' >> /etc/turnserver/turnserver.conf
    echo '## (i.e. listen_addressv6 = { "2001:db8:1::1", "2001:db8:2::1" }).' >> /etc/turnserver/turnserver.conf
    echo "#listen_addressv6 = { \"2001:db8::1\" }" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## UDP listening port.' >> /etc/turnserver/turnserver.conf
    echo "udp_port = $VOIP_TURN_PORT" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TCP listening port.' >> /etc/turnserver/turnserver.conf
    echo "tcp_port = $VOIP_TURN_PORT" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TLS listening port.' >> /etc/turnserver/turnserver.conf
    echo "tls_port = $VOIP_TURN_TLS_PORT" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TLS support.' >> /etc/turnserver/turnserver.conf
    echo 'tls = true' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## DTLS support. It is an experimental feature and is not defined in TURN' >> /etc/turnserver/turnserver.conf
    echo '## standard.' >> /etc/turnserver/turnserver.conf
    echo 'dtls = false' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Maximum allocation port number.' >> /etc/turnserver/turnserver.conf
    echo 'max_port = 65535' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Minimum allocation port number.' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo 'min_port = 49152' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TURN-TCP support.' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo 'turn_tcp = true' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TURN-TCP buffering mode:' >> /etc/turnserver/turnserver.conf
    echo '## - true, use userspace buffering;' >> /etc/turnserver/turnserver.conf
    echo '## - false, use kernel buffering.' >> /etc/turnserver/turnserver.conf
    echo 'tcp_buffer_userspace = true' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## TURN-TCP maximum buffer size.' >> /etc/turnserver/turnserver.conf
    echo 'tcp_buffer_size = 32768' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Daemon mode.' >> /etc/turnserver/turnserver.conf
    echo 'daemon = true' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Unprivileged user.' >> /etc/turnserver/turnserver.conf
    echo '## If you want to use this feature create a system user.' >> /etc/turnserver/turnserver.conf
    echo '## On Linux: adduser --system --group turnserver' >> /etc/turnserver/turnserver.conf
    echo 'unpriv_user = turnserver' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Realm value.' >> /etc/turnserver/turnserver.conf
    echo "realm = \"$DEFAULT_DOMAIN_NAME\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Nonce key.' >> /etc/turnserver/turnserver.conf
    echo "nonce_key = \"$VOIP_TURN_NONCE\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Max relay per username.' >> /etc/turnserver/turnserver.conf
    echo 'max_relay_per_username = 5' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Allocation lifetime.' >> /etc/turnserver/turnserver.conf
    echo 'allocation_lifetime = 1800' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Allocation bandwidth limitation (in KBytes/s).' >> /etc/turnserver/turnserver.conf
    echo '## 0 value means bandwidth quota disabled.' >> /etc/turnserver/turnserver.conf
    echo 'bandwidth_per_allocation = 150' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Restricted user bandwidth (in KBytes/s).' >> /etc/turnserver/turnserver.conf
    echo '## 0 value means bandwidth limitation disabled.' >> /etc/turnserver/turnserver.conf
    echo 'restricted_bandwidth = 10' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Denied addresses.' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '# disallow relaying to localhost' >> /etc/turnserver/turnserver.conf
    echo 'denied_address {' >> /etc/turnserver/turnserver.conf
    echo '  address = "127.0.0.1"' >> /etc/turnserver/turnserver.conf
    echo '  mask = "8"' >> /etc/turnserver/turnserver.conf
    echo '  port = 0' >> /etc/turnserver/turnserver.conf
    echo '}' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '# disallow relaying to ip6-localhost' >> /etc/turnserver/turnserver.conf
    echo 'denied_address {' >> /etc/turnserver/turnserver.conf
    echo '  address = "::1"' >> /etc/turnserver/turnserver.conf
    echo '  mask = "128"' >> /etc/turnserver/turnserver.conf
    echo '  port = 0' >> /etc/turnserver/turnserver.conf
    echo '}' >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Certification Authority file.' >> /etc/turnserver/turnserver.conf
    echo "ca_file = \"/etc/ssl/certs/ca-certificates.crt\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Server certificate file.' >> /etc/turnserver/turnserver.conf
    if [ -f /etc/ssl/certs/$DEFAULT_DOMAIN_NAME.pem ]; then
        echo "cert_file = \"/etc/ssl/certs/$DEFAULT_DOMAIN_NAME.pem\"" >> /etc/turnserver/turnserver.conf
    else
        if [ -f /etc/ssl/certs/$DEFAULT_DOMAIN_NAME.crt ]; then
            echo "cert_file = \"/etc/ssl/certs/$DEFAULT_DOMAIN_NAME.crt\"" >> /etc/turnserver/turnserver.conf
        fi
    fi
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Private key file.' >> /etc/turnserver/turnserver.conf
    echo "private_key_file = \"/etc/ssl/certs/$DEFAULT_DOMAIN_NAME.key\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Account method.' >> /etc/turnserver/turnserver.conf
    echo "account_method = \"file\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## Account file (if account_method = file).' >> /etc/turnserver/turnserver.conf
    echo "account_file = \"/etc/turnserver/turnusers.txt\"" >> /etc/turnserver/turnserver.conf
    echo '' >> /etc/turnserver/turnserver.conf
    echo '## mod_tmpuser.' >> /etc/turnserver/turnserver.conf
    echo 'mod_tmpuser = false' >> /etc/turnserver/turnserver.conf

    echo "${MY_USERNAME}:password:${DEFAULT_DOMAIN_NAME}:authorized" > /etc/turnserver/turnusers.txt

    systemctl restart turnserver

    echo 'install_sip_turn' >> $COMPLETION_FILE
}

function install_final {
    if grep -Fxq "install_final" $COMPLETION_FILE; then
        return
    fi
    # unmount any attached usb drive
    if [ -d $USB_MOUNT ]; then
        umount $USB_MOUNT
        rm -rf $USB_MOUNT
    fi
    split_gpg_key_into_fragments
    echo 'install_final' >> $COMPLETION_FILE
    clear
    echo ''
    echo $"
    *** ${PROJECT_NAME} installation is complete. Rebooting... ***

    Now forward these ports from your internet router

    HTTP     80
    HTTPS    443
    SSH      2222
    DLNA     1900
    DLNA     8200
    XMPP     5222-5223
    XMPP     5269
    XMPP     5280-5281
    IRC      6697
    Git      9418
    Email    25
    Email    587
    Email    465
    Email    993
    VoIP     64738
    VoIP     5060
    Tox      33445
    "
    if [ -f "/home/$MY_USERNAME/README" ]; then
        echo $"See /home/$MY_USERNAME/README for post-installation instructions."
        echo ''
    fi
    # add user menu on ssh login
    if ! grep -q 'control' /home/$MY_USERNAME/.bashrc; then
        echo 'control' >> /home/$MY_USERNAME/.bashrc
    fi
    if [ ! -f $IMAGE_PASSWORD_FILE ]; then
        reboot
    fi
}


read_configuration
set_default_onion_domains
locale_setup
parse_args
check_domains
install_not_on_BBB
remove_default_user
configure_firewall
configure_firewall_ping
configure_firewall_for_ssh
configure_firewall_for_dns
configure_firewall_for_ftp
configure_firewall_for_web_access
configure_firewall_for_voip
configure_firewall_for_voip_turn
configure_firewall_for_sip4
configure_firewall_for_avahi
configure_firewall_for_zeronet
configure_firewall_for_ipfs
create_repo_sources
configure_dns
initial_setup
install_tor
resolve_dns_via_tor
install_command_line_browser
enable_ssh_via_onion
check_date
install_dynamicdns
randomize_cron
create_freedns_updater
mark_admin_user_account
enforce_good_passwords
install_editor
change_login_message
enable_zram
random_number_generator
set_your_domain_name
time_synchronisation
configure_internet_protocol
create_git_project
configure_ssh
configure_ssh_onion
allow_ssh_to_onion_address
remove_instructions_from_motd
check_hwrng
search_for_attached_usb_drive
regenerate_ssh_keys
create_mirrors
create_upgrade_script
letsencrypt_renewals
install_zeronet
install_watchdog_script
configure_avahi
create_avahi_onion_domains
install_zeronet_blog
install_zeronet_mail
install_zeronet_forum
#install_atheros_wifi
configure_firewall_for_cjdns
mesh_cjdns
mesh_cjdns_tools
configure_firewall_for_batman
mesh_batman
configure_firewall_for_babel
mesh_babel
route_outgoing_traffic_through_tor
configure_email
create_procmail
handle_admin_emails
spam_filtering
configure_imap
#configure_imap_client_certs
configure_gpg
configure_backup_key
encrypt_incoming_email
encrypt_outgoing_email
email_client
email_archiving
email_from_address
configure_firewall_for_email
create_public_mailing_list
#create_private_mailing_list
encrypt_all_email
import_email
script_for_attaching_usb_drive
install_web_server
install_web_server_access_control
configure_firewall_for_web_server
install_syncthing
upgrade_golang
install_gogs
install_xmpp
install_xmpp_client
install_tox_node
install_tox_client
tox_avahi
configure_firewall_for_xmpp
install_irc_server
configure_firewall_for_irc
install_irc_client
install_voip
install_sip
update_sipwitch_daemon
install_wiki
install_sip_turn
install_blog
mark_blog_domain
install_gnu_social
expire_gnu_social_posts
install_gnu_social_theme
install_gnu_social_markdown
install_rss_reader
install_rss_reader_gnusocial
install_rss_mobile_reader
install_hubzilla
#install_search_engine
install_dlna_server
configure_firewall_for_dlna
#install_mediagoblin
#install_ipfs
repair_databases_script
backup_to_friends_servers
intrusion_detection
install_final
echo "${PROJECT_NAME} installation is complete"
exit 0