#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# User control panel
#
# License
# =======
#
# Copyright (C) 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/>.

PROJECT_NAME='freedombone'

export TEXTDOMAIN=${PROJECT_NAME}-controlpanel-user
export TEXTDOMAINDIR="/usr/share/locale"

MY_EMAIL_ADDRESS=$USER@$HOSTNAME
GPG_ID=$(gpg --fingerprint $MY_EMAIL_ADDRESS | grep -i "pub" | head -n 1 | awk -F '/' '{print $2}' | awk -F ' ' '{print $1}')

SYNCTHING_CONFIG_FILE=~/.syncthingids
SYNCTHING_ID=$(cat ~/.syncthing-server-id)

function any_key {
	echo ' '
	read -n1 -r -p $"Press any key to continue..." key
}

function remove_user_from_mailing_list {
	USER_MAILING_LISTS=$(cat "/home/$USER/.procmailrc" | grep '\[' | grep '\]' | awk -F '\[' '{print $2}' | awk -F '\\' '{print $1}')

	i=0
	W=()
	list_name=()
	while read -r listname; do
		i=$((i+1))
		W+=($i "$listname")
		list_name+=("$listname")
		echo $listname
	done <<< "$USER_MAILING_LISTS"

	i=$((i+1))
	W+=($i $"Exit back to user mainenance")

	list_selected=$(dialog --default-item "$i" --backtitle $"Freedombone User Control Panel" --title $"Remove yourself from a mailing list" --menu $"Select one of the following:" 24 50 17 "${W[@]}" 3>&2 2>&1 1>&3)

	if [ $? -eq 0 ]; then # Exit with OK
		if [ ${list_selected} -ne ${i} ]; then
			remove_list_name="${list_name[$((list_selected-1))]}"

			# find the line number where the list is defined
			line_number=0
			i=0
			while read -r line
			do
				if [[ "$line" == *"\[${remove_list_name}\\]"* ]]; then
					line_number=${i}
				fi
				i=$((i+1))
			done < "/home/$USER/.procmailrc"

			if [ ${line_number} -eq 0 ]; then
				# no match was found
				return
			fi

			# recreate the file
			if [ -f /home/${USER}/.procmailrc_new ]; then
				rm /home/${USER}/.procmailrc_new
			fi
			i=0
			clip=0
			while read -r line
			do
				i=$((i+1))
				if [ ${i} -gt $((line_number-1)) ]; then
					if [ ${clip} -eq 0 ]; then
						clip=1
					fi
					if [ ${clip} -eq 1 ]; then
						if [ ${i} -lt $((line_number+2)) ]; then
							continue
						else
							if [ ${#line} -lt 1 ]; then
								clip=2
								continue
							fi
							if [[ "$line" == ":"* || "$line" == "#"* ]]; then
								clip=2
							else
								continue
							fi
						fi
					fi
				fi

				echo "$line" >> /home/${USER}/.procmailrc_new

				if [[ "$line" == *"\[${remove_list_name}\\]"* ]]; then
					line_number=${i}
				fi
			done < "/home/$USER/.procmailrc"
			cp /home/${USER}/.procmailrc_new /home/${USER}/.procmailrc
			rm /home/${USER}/.procmailrc_new
			chown ${USER}:${USER} /home/${USER}/.procmailrc
			dialog --title $"Remove yourself from mailing list" \
				   --msgbox $"You have been removed from ${remove_list_name}" 6 50
		fi
	fi
}

function add_to_mailing_list {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title $"Subscribe to a mailing list" \
		   --form $"You can either enter a subject or an email address\n" 11 68 4 \
		   $"List folder name:" 1 1 "" 1 35 26 25 \
		   $"Name between [] on subject line:" 2 1 "" 2 35 26 25 \
		   $"List email address:" 3 1 "" 3 35 26 25 \
		   $"Public:" 4 1 $"yes" 4 35 4 25 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	LIST_NAME=$(cat $data | sed -n 1p)
	LIST_SUBJECT=$(cat $data | sed -n 2p)
	LIST_EMAIL=$(cat $data | sed -n 3p)
	LIST_PUBLIC=$(cat $data | sed -n 4p)

	if [ ${#LIST_PUBLIC} -lt 1 ]; then
		LIST_PUBLIC='no'
	fi
	if [[ $LIST_PUBLIC == $'y' || $LIST_PUBLIC == $'Y' || $LIST_PUBLIC == $'true' || $LIST_PUBLIC == $'True' || $LIST_PUBLIC == $'yes' || $LIST_PUBLIC == $'Yes' || $LIST_PUBLIC == $'YES' ]]; then
		LIST_PUBLIC='yes'
	else
		LIST_PUBLIC='no'
	fi
	if [ ${#LIST_NAME} -lt 2 ]; then
		dialog --title $"Add mailing list" \
			   --msgbox $"No mailing list name was given" 6 40
		return
	fi
	if [ ${#LIST_SUBJECT} -lt 2 ]; then
		if [ ${#LIST_EMAIL} -lt 2 ]; then
			dialog --title $"Add mailing list" \
				   --msgbox $"No mailing list subject or address was given" 6 40
			return
		fi
	fi
	if [ ${#LIST_SUBJECT} -gt 1 ]; then
		${PROJECT_NAME}-addlist -u $USER -l "$LIST_NAME" \
					   -s "$LIST_SUBJECT" --public $LIST_PUBLIC
	else
		if [[ "$LIST_EMAIL" != *"@"* || "$LIST_EMAIL" != *"."* ]]; then
			dialog --title $"Add mailing list" \
				   --msgbox $"Unrecognised email address" 6 40
			return
		else
			${PROJECT_NAME}-addlist -u $USER -l "$LIST_NAME" \
						   -e "$LIST_EMAIL" --public $LIST_PUBLIC
		fi
	fi

	dialog --title $"Add mailing list" \
		   --msgbox $"$LIST_NAME list was added" 6 40
}

function email_rule_address {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title $"Create an email rule" \
		   --form "\n" 9 65 4 \
		   $"When email arrives from address:" 1 1 "" 1 35 24 28 \
		   $"Move to folder:" 2 1 "" 2 35 24 28 \
		   $"Public:" 3 1 $"no" 3 35 4 25 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	RULE_EMAIL=$(cat $data | sed -n 1p)
	RULE_FOLDER=$(cat $data | sed -n 2p)
	RULE_PUBLIC=$(cat $data | sed -n 3p)

	if [ ${#RULE_PUBLIC} -lt 1 ]; then
		RULE_PUBLIC='no'
	fi
	if [[ $RULE_PUBLIC == $'y' || $RULE_PUBLIC == $'Y' || $RULE_PUBLIC == $'true' || $RULE_PUBLIC == $'True' || $RULE_PUBLIC == $'yes' || $RULE_PUBLIC == $'Yes' || $RULE_PUBLIC == $'YES' ]]; then
		RULE_PUBLIC='yes'
	else
		RULE_PUBLIC='no'
	fi
	if [ ${#RULE_EMAIL} -lt 2 ]; then
		dialog --title $"Create an email rule" \
			   --msgbox $"No email address was given" 6 40
		return
	fi
	if [ ${#RULE_FOLDER} -lt 2 ]; then
		dialog --title $"Create an email rule" \
			   --msgbox $"No folder name was given" 6 40
		return
	fi
	if [[ "$RULE_EMAIL" != *"@"* || "$RULE_EMAIL" != *"."* ]]; then
		dialog --title $"Create an email rule" \
			   --msgbox $"Unrecognised email address" 6 40
		return
	fi

	${PROJECT_NAME}-addemail -u $USER -e "$RULE_EMAIL" \
				   -g "$RULE_FOLDER" --public $RULE_PUBLIC
	dialog --title $"Create an email rule" \
		   --msgbox $"Email rule for $RULE_EMAIL was added" 6 40
}

function gpg_set_trust {
	TRUST_ADDRESS=$1
	fpr=$(gpg --with-colons --fingerprint "$TRUST_ADDRESS" | grep fpr | head -n 1 | awk -F ':' '{print $10}')
	if [ ${#fpr} -gt 2 ]; then

		data=$(tempfile 2>/dev/null)
		trap "rm -f $data" 0 1 2 5 15
		dialog --backtitle $"Freedombone User Control Panel" \
			   --title $"Trust a PGP/GPG key or website domain" \
			   --radiolist $"Set the trust level for $TRUST_ADDRESS:" 18 70 10 \
			   1 $"I don't know or won't say" off \
			   2 $"I do NOT trust" off \
			   3 $"I trust marginally" on \
			   4 $"I trust fully" off \
			   5 $"I trust ultimately" off 2> $data
		sel=$?
		case $sel in
			1) return;;
			255) return;;
		esac
		TRUST_LEVEL=$(cat $data)
		if [ ${TRUST_LEVEL} -ge 1 ] ; then
			if [ ${TRUST_LEVEL} -le 5 ] ; then
				echo -e "trust\n${TRUST_LEVEL}\ny\nsave\n" | gpg --command-fd 0 --edit-key $fpr
				if [ "$?" = "0" ]; then
					gpg --update-trustdb
					dialog --title $"Trust a PGP/GPG key or website domain" \
						   --backtitle $"Freedombone User Control Panel" \
						   --msgbox $"$TRUST_ADDRESS was set to trust level ${TRUST_LEVEL}" 6 50
				fi
			fi
		fi
	fi
}

function email_rule_subject {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title $"Create an email rule" \
		   --form "\n" 9 75 4 \
		   $"When email arrives with subject containing:" 1 1 "" 1 45 24 28 \
		   $"Move to folder:" 2 1 "" 2 45 24 28 \
		   $"Public:" 3 1 $"no" 3 45 4 25 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	RULE_SUBJECT=$(cat $data | sed -n 1p)
	RULE_FOLDER=$(cat $data | sed -n 2p)
	RULE_PUBLIC=$(cat $data | sed -n 3p)

	if [ ${#RULE_PUBLIC} -lt 1 ]; then
		RULE_PUBLIC='no'
	fi
	if [[ $RULE_PUBLIC == $'y' || $RULE_PUBLIC == $'Y' || $RULE_PUBLIC == $'true' || $RULE_PUBLIC == $'True' || $RULE_PUBLIC == $'yes' || $RULE_PUBLIC == $'Yes' || $RULE_PUBLIC == $'YES' ]]; then
		RULE_PUBLIC='yes'
	else
		RULE_PUBLIC='no'
	fi
	if [ ${#RULE_SUBJECT} -lt 2 ]; then
		dialog --title $"Create an email rule" \
			   --msgbox $"No subject text was given" 6 40
		return
	fi
	if [ ${#RULE_FOLDER} -lt 2 ]; then
		dialog --title $"Create an email rule" \
			   --msgbox $"No folder name was given" 6 40
		return
	fi

	${PROJECT_NAME}-addemail -u $USER -s "$RULE_SUBJECT" \
				   -g "$RULE_FOLDER" --public $RULE_PUBLIC
	dialog --title $"Create an email rule" \
		   --msgbox $"Email rule for subject '$RULE_SUBJECT' was added" 6 40
}

function block_unblock_email {
	blockstr=$"Block or unblock emails from a given address"
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title "$blockstr" \
		   --form "\n" 8 65 3 \
		   $"When email arrives from address:" 1 1 "" 1 35 24 100 \
		   $"Block it:" 2 1 "yes" 2 35 4 4 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	BLOCK_EMAIL=$(cat $data | sed -n 1p)
	BLOCK=$(cat $data | sed -n 2p)
	if [ ${#BLOCK_EMAIL} -lt 2 ]; then
		dialog --title "$blockstr" \
			   --msgbox $"No email address was given" 6 40
		return
	fi
	if [[ "$BLOCK_EMAIL" != *"@"* || "$BLOCK_EMAIL" != *"."* ]]; then
		dialog --title "$blockstr" \
			   --msgbox $"Unrecognised email address" 6 40
		return
	fi
	if [[ $BLOCK == "y"* || $BLOCK == "Y"* ]]; then
		${PROJECT_NAME}-ignore -u $USER -e "$BLOCK_EMAIL"
		dialog --title $"Block an email" \
			   --msgbox "Email from $BLOCK_EMAIL is now blocked" 6 75
	else
		${PROJECT_NAME}-unignore -u $USER -e "$BLOCK_EMAIL"
		dialog --title $"Unblock an email" \
			   --msgbox "Email from $BLOCK_EMAIL is now unblocked" 6 75
	fi
}

function block_unblock_subject {
	blockstr=$"Block or unblock emails with text in the subject line"
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title "$blockstr" \
		   --form "\n" 8 70 3 \
		   $"When email arrives with subject text:" 1 1 "" 1 40 24 28 \
		   $"Block it:" 2 1 "yes" 2 40 4 4 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	BLOCK_SUBJECT=$(cat $data | sed -n 1p)
	BLOCK=$(cat $data | sed -n 2p)
	if [ ${#BLOCK_SUBJECT} -lt 2 ]; then
		dialog --title "$blockstr" \
			   --msgbox $"No subject was given" 6 40
		return
	fi
	if [[ $BLOCK == "y"* || $BLOCK == "Y"* ]]; then
		${PROJECT_NAME}-ignore -u $USER -t "$BLOCK_SUBJECT"
		dialog --title $"Block an email" \
			   --msgbox $"Email with subject $BLOCK_SUBJECT is now blocked" 6 40
	else
		${PROJECT_NAME}-unignore -u $USER -t "$BLOCK_SUBJECT"
		dialog --title $"Unblock an email" \
			   --msgbox $"Email with subject $BLOCK_SUBJECT is now unblocked" 6 40
	fi
}

function show_gpg_key {
	GPG_FINGERPRINT=$(gpg --fingerprint $MY_EMAIL_ADDRESS | grep -i "key fingerprint" | head -n 1 | awk -F '= ' '{print $2}')
	GPG_DATE=$(gpg --fingerprint $MY_EMAIL_ADDRESS | grep -i "pub" | head -n 1 | awk -F '/' '{print $2}' | awk -F ' ' '{print $2}')
	dialog --title $"My PGP/GPG Key" \
		   --backtitle $"Freedombone User Control Panel" \
		   --msgbox $"Email Address: $MY_EMAIL_ADDRESS\n\nKey ID: $GPG_ID\n\nFingerprint: $GPG_FINGERPRINT\n\nCreated: $GPG_DATE" 12 70
}

function publish_gpg_key {
	gpg --send-key $GPG_ID
	dialog --title $"Publish your PGP/GPG key" \
		   --msgbox $"Your key has now been published" 6 40
}

function refresh_gpg_keys {
	gpg --refresh-keys
	dialog --title $"Refresh PGP/GPG keys" \
		   --msgbox $"Your keys have been refreshed" 6 40
}

function add_gpg_key {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Add someone's PGP/GPG key" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"Enter their email address or Key ID below" 8 60 2>$data
	sel=$?
	case $sel in
		0)
			ADD_EMAIL_ADDRESS=$(<$data)
			if [ ${#ADD_EMAIL_ADDRESS} -gt 2 ]; then

				address_is_valid=

				if [[ $ADD_EMAIL_ADDRESS == *"@"* && $ADD_EMAIL_ADDRESS == *"."* ]]; then
					address_is_valid=1
				else
					if [[ $ADD_EMAIL_ADDRESS == "0x"* ]]; then
						address_is_valid=1
					fi
				fi

				if [ $address_is_valid ]; then
					clear
					gpg --search-keys "$ADD_EMAIL_ADDRESS"
					gpg_set_trust "$ADD_EMAIL_ADDRESS"
				else
					dialog --title $"Unrecognised email address" \
						   --backtitle $"Freedombone User Control Panel" \
						   --msgbox $"This doesn't look like an email address or key ID" 6 50
				fi
			fi
			;;
	esac
}

function remove_gpg_key {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Remove someone's PGP/GPG key" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"Enter their email address below" 8 60 2>$data
	sel=$?
	case $sel in
		0)
			REMOVE_EMAIL_ADDRESS=$(<$data)
			if [ ${#REMOVE_EMAIL_ADDRESS} -gt 2 ]; then
				if [[ $REMOVE_EMAIL_ADDRESS == *"@"* && $REMOVE_EMAIL_ADDRESS == *"."* ]]; then
					if [[ $REMOVE_EMAIL_ADDRESS != $MY_EMAIL_ADDRESS ]]; then
						clear
						gpg --delete-key $REMOVE_EMAIL_ADDRESS
					else
						dialog --title $"Remove someone's PGP/GPG key" \
							   --backtitle $"Freedombone User Control Panel" \
							   --msgbox $"It's not a good idea to remove your own encryption key" 6 65
					fi
				else
					dialog --title $"Unrecognised email address" \
						   --backtitle $"Freedombone User Control Panel" \
						   --msgbox $"This doesn't look like an email address" 6 50
				fi
			fi
			;;
	esac
}

function add_ssh_key {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Add an ssh key for logging in" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"This will allow you to log into ${PROJECT_NAME} if you have an ssh key on your system, and provides much stronger security than simply using a login password.\n\nWARNING: If you make any mistakes here then you may not be able to log in and will need to get the administrator to clear your ssh authorized_keys file." 15 60 2>$data
	sel=$?
	case $sel in
		0)
			SSH_PUBLIC_KEY=$(<$data)
			if [ ${#SSH_PUBLIC_KEY} -gt 20 ]; then
				if [[ "$SSH_PUBLIC_KEY" == "ssh-"* ]]; then
					if [ ! -d /home/$USER/.ssh ]; then
						mkdir /home/$USER/.ssh
					fi
					if [ ! -f /home/$USER/.ssh/authorized_keys ]; then
						touch /home/$USER/.ssh/authorized_keys
					fi
					if ! grep -q "$SSH_PUBLIC_KEY" /home/$USER/.ssh/authorized_keys; then
						echo "$SSH_PUBLIC_KEY" >> /home/$USER/.ssh/authorized_keys
						dialog --title $"New ssh key added" \
							   --backtitle $"Freedombone User Control Panel" \
							   --msgbox $"Your ssh key has now been added" 6 50
					else
						dialog --title $"ssh key already added" \
							   --backtitle $"Freedombone User Control Panel" \
							   --msgbox $"That ssh key has already been added" 6 50
					fi
				else
					dialog --title $"Unrecognised ssh public key" \
						   --backtitle $"Freedombone User Control Panel" \
						   --msgbox $"This doesn't look like an ssh key" 6 50
				fi
			fi
			;;
	esac
}

function remove_ssh_key {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Remove an ssh key for logging in" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"Enter the ssh public key which is to be removed. This can be just the address at the end.\n\nWARNING: If you make any mistakes here then you may not be able to log in and will need to get the administrator to clear your ssh authorized_keys file." 15 60 2>$data
	sel=$?
	case $sel in
		0)
			SSH_PUBLIC_KEY=$(<$data)
			if [ ${#SSH_PUBLIC_KEY} -gt 5 ]; then
				if [ -f /home/$USER/.ssh/authorized_keys ]; then
					sed -i "s|.*${SSH_PUBLIC_KEY}.*||g" /home/$USER/.ssh/authorized_keys
					dialog --title $"Remove an ssh public key" \
						   --backtitle $"Freedombone User Control Panel" \
						   --msgbox $"The ssh key has been removed" 6 50
				fi
			fi
			;;
	esac
}

function smtp_proxy {
	MUTTRC_FILE=/home/$USER/.muttrc
	if [ ! -f $MUTTRC_FILE ]; then
		return
	fi
	SMTP_PROXY_ENABLE=$'no'
	SMTP_PROXY_PROTOCOL='smtps'
	SMTP_PROXY_SERVER='mail.myispdomain'
	SMTP_PROXY_PORT=465
	SMTP_PROXY_USERNAME=''
	SMTP_PROXY_PASSWORD=''

	if grep -q "set smtp_url" $MUTTRC_FILE; then
		if grep -q "#set smtp_url" $MUTTRC_FILE; then
			SMTP_PROXY_ENABLE=$'no'
		else
			SMTP_PROXY_ENABLE=$'yes'
		fi
		SMTP_PROXY_PROTOCOL=$(cat $MUTTRC_FILE | grep "set smtp_url" | awk -F '"' '{print $2}' | awk -F ':' '{print $1}')
		SMTP_PROXY_SERVER=$(cat $MUTTRC_FILE | grep "set smtp_url" | awk -F '"' '{print $2}' | awk -F '/' '{print $3}' | awk -F ':' '{print $2}' | awk -F '@' '{print $2}')
		SMTP_PROXY_PORT=$(cat $MUTTRC_FILE | grep "set smtp_url" | awk -F ':' '{print $4}' | awk -F '/' '{print $1}')
		SMTP_PROXY_USERNAME=$(cat $MUTTRC_FILE | grep "set smtp_url" | awk -F '"' '{print $2}' | awk -F '/' '{print $3}' | awk -F ':' '{print $1}')
		SMTP_PROXY_PASSWORD=$(cat $MUTTRC_FILE | grep "set smtp_url" | awk -F '"' '{print $2}' | awk -F '/' '{print $3}' | awk -F ':' '{print $2}' | awk -F '@' '{print $1}')
	fi

	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone Control Panel" \
		   --title $"SMTP Proxy for $USER" \
		   --form $"You may need to proxy outgoing email via your ISP's mail server. If so enter the details below." 14 75 6 \
		   $"Enable proxy:" 1 1 "$SMTP_PROXY_ENABLE" 1 24 5 5 \
		   $"Protocol (smtp/smtps):" 2 1 "$SMTP_PROXY_PROTOCOL" 2 24 5 5 \
		   $"ISP mail server:" 3 1 "$SMTP_PROXY_SERVER" 3 24 40 10000 \
		   $"Port:" 4 1 "$SMTP_PROXY_PORT" 4 24 5 5 \
		   $"Username:" 5 1 "$SMTP_PROXY_USERNAME" 5 24 40 10000 \
		   $"Password:" 6 1 "$SMTP_PROXY_PASSWORD" 6 24 40 10000 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	SMTP_PROXY_ENABLE=$(cat $data | sed -n 1p)
	SMTP_PROXY_PROTOCOL=$(cat $data | sed -n 2p)
	SMTP_PROXY_SERVER=$(cat $data | sed -n 3p)
	SMTP_PROXY_PORT=$(cat $data | sed -n 4p)
	SMTP_PROXY_USERNAME=$(cat $data | sed -n 5p)
	SMTP_PROXY_PASSWORD=$(cat $data | sed -n 6p)

	# change muttrc
	if [ $SMTP_PROXY_ENABLE != $'no' ]; then
		if ! grep -q "set smtp_url" $MUTTRC_FILE; then
			echo "set smtp_url=\"${SMTP_PROXY_PROTOCOL}://${SMTP_PROXY_USERNAME}:${SMTP_PROXY_PASSWORD}@${SMTP_PROXY_SERVER}:${SMTP_PROXY_PORT}/\"" >> $MUTTRC_FILE
		else
			sed -i "s|set smtp_url=.*|set smtp_url=\"${SMTP_PROXY_PROTOCOL}://${SMTP_PROXY_USERNAME}:${SMTP_PROXY_PASSWORD}@${SMTP_PROXY_SERVER}:${SMTP_PROXY_PORT}/\"|g" $MUTTRC_FILE
		fi
		sed -i 's|#set smtp_url|set smtp_url|g' $MUTTRC_FILE
	else
		if grep "set smtp_url" $MUTTRC_FILE; then
			sed -i 's|set smtp_url|#set smtp_url|g' $MUTTRC_FILE
		fi
	fi
}

function syncthing_create_ids_file {
	if [ ! -f ~/.syncthing-server-id ]; then
		return
	fi

	SYNCTHING_ID=$(cat ~/.syncthing-server-id)
	if [ ! -f $SYNCTHING_CONFIG_FILE ]; then
		echo $'# Your syncthing configuration file' > $SYNCTHING_CONFIG_FILE
		echo '#' >> $SYNCTHING_CONFIG_FILE
		echo $"# The ${PROJECT_NAME} syncthing ID is: $SYNCTHING_ID" >> $SYNCTHING_CONFIG_FILE
		echo '#' >> $SYNCTHING_CONFIG_FILE
		echo '# Paste the IDs of your devices below' >> $SYNCTHING_CONFIG_FILE
		echo '#' >> $SYNCTHING_CONFIG_FILE
	fi
}

function syncthing_manual_edit {
	if [ ! -f ~/.syncthing-server-id ]; then
		return
	fi
	syncthing_create_ids_file
	editor $SYNCTHING_CONFIG_FILE

	# force an update of the configuration
	touch ~/.syncthing-update
}

function syncthing_show_id {
	if [ ! -f ~/.syncthing-server-id ]; then
		return
	fi

	SYNCTHING_ID=$(cat ~/.syncthing-server-id)
	dialog --title $"Device ID for ${PROJECT_NAME}" \
		   --backtitle $"Freedombone User Control Panel" \
		   --msgbox $"In a desktop terminal press shift and select the ID below,\nthen right click and copy.\n\nWithin Connectbot select Menu/Copy and then highlight the ID below\n\n$SYNCTHING_ID" 12 78
}

function syncthing_add_id {
	if [ ! -f ~/.syncthing-server-id ]; then
		return
	fi

	syncthing_create_ids_file

	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title $"Add a Syncthing device ID" \
		   --form $"Paste the device ID for your laptop/desktop/netbook/phone/tablet below" 9 80 2 \
		   $"Device ID:" 1 1 "" 1 26 80 80 \
		   $"Description (optional):" 2 1 "" 2 26 80 80 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	SYNCTHING_DEVICE_ID=$(cat $data | sed -n 1p)
	SYNCTHING_DESCRIPTION=$(cat $data | sed -n 2p)

	if [ ${#SYNCTHING_DEVICE_ID} -lt 10 ]; then
		return
	fi

	if [[ $SYNCTHING_DEVICE_ID == *"#"* || $SYNCTHING_DEVICE_ID == *"*"* || $SYNCTHING_DEVICE_ID == *'/'*  || $SYNCTHING_DEVICE_ID != *"-"* ]]; then
		dialog --title $"Add a Syncthing device ID" \
			   --backtitle $"Freedombone User Control Panel" \
			   --msgbox $"That doesn't look like a device ID" 6 50
		return
	fi

	if grep -q "$SYNCTHING_DEVICE_ID" $SYNCTHING_CONFIG_FILE; then
		dialog --title $"Add a Syncthing device ID" \
			   --backtitle $"Freedombone User Control Panel" \
			   --msgbox $"That ID has already been added" 6 50
		return
	fi

	if [ ${#SYNCTHING_DESCRIPTION} -gt 0 ]; then
		echo "# $SYNCTHING_DESCRIPTION" >> $SYNCTHING_CONFIG_FILE
	fi
	echo "$SYNCTHING_DEVICE_ID" >> $SYNCTHING_CONFIG_FILE

	# force an update of the configuration
	touch ~/.syncthing-update

	dialog --title $"Add a Syncthing device ID" \
		   --backtitle $"Freedombone User Control Panel" \
		   --msgbox $"The ID was added" 6 50
}

function syncthing_remove_id {
	if [ ! -f ~/.syncthing-server-id ]; then
		return
	fi

	syncthing_create_ids_file

	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --backtitle $"Freedombone User Control Panel" \
		   --title $"Remove a Syncthing device ID" \
		   --form $"Paste the device ID which is to be removed below" 8 80 1 \
		   $"Device ID:" 1 1 "" 1 14 80 80 \
		   2> $data
	sel=$?
	case $sel in
		1) return;;
		255) return;;
	esac
	SYNCTHING_DEVICE_ID=$(cat $data | sed -n 1p)

	if [ ${#SYNCTHING_DEVICE_ID} -lt 10 ]; then
		return
	fi

	if [[ $SYNCTHING_DEVICE_ID == *"#"* || $SYNCTHING_DEVICE_ID == *"*"* || $SYNCTHING_DEVICE_ID == *'/'*  || $SYNCTHING_DEVICE_ID != *"-"* ]]; then
		dialog --title $"Remove a Syncthing device ID" \
			   --backtitle $"Freedombone User Control Panel" \
			   --msgbox $"That doesn't look like a device ID" 6 50
		return
	fi

	if ! grep -q "$SYNCTHING_DEVICE_ID" $SYNCTHING_CONFIG_FILE; then
		dialog --title $"Remove a Syncthing device ID" \
			   --backtitle $"Freedombone User Control Panel" \
			   --msgbox $"That ID wasn't registered anyway" 6 50
		return
	fi

	sed -i "/$SYNCTHING_DEVICE_ID/d" $SYNCTHING_CONFIG_FILE

	# force an update of the configuration
	touch ~/.syncthing-update

	dialog --title $"Remove a Syncthing device ID" \
		   --backtitle $"Freedombone User Control Panel" \
		   --msgbox $"The ID was removed" 6 50
}

function sign_gpg_key {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Sign a PGP/GPG key or website domain" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"Enter the Key ID, address or domain to be signed.\n\nIf you are signing a website domain then include the https:// at the beginning.\n\nIf you are signing an ssh key then include ssh:// before the domain name." 14 75 2>$data
	sel=$?
	case $sel in
		0)
			SIGN_ADDRESS=$(<$data)
			if [ ${#SIGN_ADDRESS} -gt 2 ]; then
				clear
				gpg --search "$SIGN_ADDRESS"
				fpr=$(gpg --with-colons --fingerprint "$SIGN_ADDRESS" | grep fpr | head -n 1 | awk -F ':' '{print $10}')
				if [ ${#fpr} -gt 2 ]; then
					gpg --sign-key $fpr
					if [ "$?" = "0" ]; then
						gpg --update-trustdb
						dialog --title $"Sign a PGP/GPG key" \
							   --backtitle $"Freedombone User Control Panel" \
							   --msgbox $"$SIGN_ADDRESS was signed" 6 50
					fi
				fi
			fi
			;;
	esac
}


function gpg_key_trust {
	data=$(tempfile 2>/dev/null)
	trap "rm -f $data" 0 1 2 5 15
	dialog --title $"Trust a PGP/GPG key or website domain" \
		   --backtitle $"Freedombone User Control Panel" \
		   --inputbox $"Enter the Key ID, address or domain to be trusted.\n\nIf you are trusting a website domain then include the https:// at the beginning.\n\nIf you are trusting an ssh key then include ssh:// before the domain name." 14 75 2>$data
	sel=$?
	case $sel in
		0)
			TRUST_ADDRESS=$(<$data)
			if [ ${#TRUST_ADDRESS} -gt 2 ]; then
				clear
				gpg --search "$TRUST_ADDRESS"
				gpg_set_trust "$TRUST_ADDRESS"
			fi
			;;
	esac
}

function menu_encryption_keys {
	while true
	do
		data=$(tempfile 2>/dev/null)
		trap "rm -f $data" 0 1 2 5 15
		dialog --backtitle $"Freedombone User Control Panel" \
			   --title $"My Encryption Keys" \
			   --radiolist $"Choose an operation:" 18 70 10 \
			   1 $"Show your PGP/GPG key" off \
			   2 $"Publish your PGP/GPG key so that others can find it" off \
			   3 $"Add someone's PGP/GPG key" off \
			   4 $"Remove someone's PGP/GPG key" off \
			   5 $"Sign a PGP/GPG key or website domain" off \
			   6 $"Refresh your PGP/GPG keys" off \
			   7 $"Add an ssh key for logging in" off \
			   8 $"Remove an ssh key for logging in" off \
			   9 $"Set the trust level for a PGP/GPG key" off \
			   10 $"Back to main menu" on 2> $data
		sel=$?
		case $sel in
			1) break;;
			255) break;;
		esac
		case $(cat $data) in
			1) show_gpg_key;;
			2) publish_gpg_key;;
			3) add_gpg_key;;
			4) remove_gpg_key;;
			5) sign_gpg_key;;
			6) refresh_gpg_keys;;
			7) add_ssh_key;;
			8) remove_ssh_key;;
			9) gpg_key_trust;;
			10) break;;
		esac
	done
}

function menu_email {
	while true
	do
		data=$(tempfile 2>/dev/null)
		trap "rm -f $data" 0 1 2 5 15
		dialog --backtitle $"Freedombone User Control Panel" \
			   --title $"Change Email Filtering Rules" \
			   --radiolist $"Choose an operation:" 14 70 7 \
			   1 $"Add yourself to a mailing list" off \
			   2 $"Remove yourself from a mailing list" off \
			   3 $"Add an email rule for an address" off \
			   4 $"Add an email rule for a subject" off \
			   5 $"Block or unblock an email address" off \
			   6 $"Block or unblock email with subject text" off \
			   7 $"Back to main menu" on 2> $data
		sel=$?
		case $sel in
			1) break;;
			255) break;;
		esac
		case $(cat $data) in
			1) add_to_mailing_list;;
			2) remove_user_from_mailing_list;;
			3) email_rule_address;;
			4) email_rule_subject;;
			5) block_unblock_email;;
			6) block_unblock_subject;;
			7) break;;
		esac
	done
}

function menu_syncthing {
	while true
	do
		data=$(tempfile 2>/dev/null)
		trap "rm -f $data" 0 1 2 5 15
		dialog --backtitle $"Freedombone User Control Panel" \
			   --title $"File Synchronization" \
			   --radiolist $"Choose an operation:" 12 70 6 \
			   1 $"Show device ID for ${PROJECT_NAME}" off \
			   2 $"Add an ID for another machine or device" off \
			   3 $"Remove an ID for another machine or device" off \
			   4 $"Manually edit device IDs" off \
			   5 $"Back to main menu" on 2> $data
		sel=$?
		case $sel in
			1) break;;
			255) break;;
		esac
		case $(cat $data) in
			1) syncthing_show_id;;
			2) syncthing_add_id;;
			3) syncthing_remove_id;;
			4) syncthing_manual_edit;;
			5) break;;
		esac
	done
}

function menu_admin {
	if [ ! -f /etc/sudoers ]; then
		clear
		exit 0
	fi
	sudo freedombone-controlpanel
}

function sign_keys {
	if [ ! -f /home/$USER/.monkeysphere/server_keys ]; then
		return
	fi

	dialog --title $"Monkeysphere sign server keys" \
		   --backtitle $"Freedombone Security Configuration" \
		   --defaultno \
		   --yesno $"\nMonkeysphere has been enabled and you will need to sign and trust the server keys. Do you want to do that now?" 8 60
	sel=$?
	case $sel in
		0) ${PROJECT_NAME}-sec --sign yes;;
	esac
}

function menu_top_level {
	while true
	do
		data=$(tempfile 2>/dev/null)
		trap "rm -f $data" 0 1 2 5 15
		dialog --backtitle $"Freedombone User Control Panel" \
			   --title $"User Control Panel" \
			   --radiolist $"Choose an operation:" 19 50 12 \
			   1 $"Use Email" off \
			   2 $"Change Email Filtering Rules" off \
			   3 $"Use Tox Chat" off \
			   4 $"Use XMPP Chat" off \
			   5 $"Use IRC" off \
			   6 $"Browse the Web" off \
			   7 $"File Synchronization" off \
			   8 $"My Encryption Keys" off \
			   9 $"Set an outgoing email proxy" off \
			   10 $"Administrator controls" off \
			   11 $"Exit to the command line" off \
			   12 $"Log out" on 2> $data
		sel=$?
		case $sel in
			1) exit 1;;
			255) exit 1;;
		esac
		case $(cat $data) in
			1) mutt;;
			2) menu_email;;
			3) toxic --force-tcp --SOCKS5-proxy 127.0.0.1 9050;;
			4) torify profanity;;
			5) irssi;;
			6) torify elinks;;
			7) menu_syncthing;;
			8) menu_encryption_keys;;
			9) smtp_proxy;;
			10) menu_admin;;
			11) break;;
			12) kill -HUP `pgrep -s 0 -o`;;
		esac
	done
}

sign_keys
menu_top_level
clear
. ~/.bashrc
exit 0
