freedombone/src/freedombone-app-syncthing

#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Syncthing application
#
# 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/>.

VARIANTS='full cloud'

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'

function change_password_syncthing {
    echo -n ''
}

function reconfigure_syncthing {
    echo -n ''
}

function upgrade_syncthing {
    echo -n ''
}

function backup_local_syncthing {
    if [ -d /var/lib/syncthing/SyncShared ]; then
        echo $"Backing up syncthing"

        function_check backup_directory_to_usb
        backup_directory_to_usb /var/lib/syncthing/SyncShared syncthingshared
        backup_directory_to_usb /root/.config/syncthing syncthingconfig

        echo $"Backup to syncthing complete"
    fi
}

function restore_local_syncthing {
    if [ -f /etc/systemd/system/syncthing.service ]; then
        systemctl stop syncthing
        systemctl stop cron
    fi

    temp_restore_dir=/root/tempsyncthing
    if [ -d $USB_MOUNT/backup/syncthingconfig ]; then
        echo $"Restoring syncthing configuration"
        function_check restore_directory_from_usb
        restore_directory_from_usb ${temp_restore_dir}config syncthingconfig
        cp -r ${temp_restore_dir}config/* /
        if [ ! "$?" = "0" ]; then
            set_user_permissions
            backup_unmount_drive
            systemctl start syncthing
            systemctl start cron
            exit 6833
        fi
        rm -rf ${temp_restore_dir}config
    fi

    if [ -d $USB_MOUNT/backup/syncthingshared ]; then
        echo $"Restoring syncthing shared files"
        restore_directory_from_usb ${temp_restore_dir}shared syncthingshared
        cp -r ${temp_restore_dir}shared/* /
        if [ ! "$?" = "0" ]; then
            set_user_permissions
            backup_unmount_drive
            systemctl start syncthing
            systemctl start cron
            exit 37904
        fi
        rm -rf ${temp_restore_dir}shared
    fi

    if [ -d $USB_MOUNT/backup/syncthing ]; then
        for d in $USB_MOUNT/backup/syncthing/*/ ; do
            USERNAME=$(echo "$d" | awk -F '/' '{print $6}')
            if [[ $USERNAME != "git" && $USERNAME != "mirrors" && $USERNAME != "sync" && $USERNAME != "tahoelafs" ]]; then
                if [ ! -d /home/$USERNAME ]; then
                    ${PROJECT_NAME}-adduser $USERNAME
                fi
                echo $"Restoring syncthing files for $USERNAME"
                restore_directory_from_usb ${temp_restore_dir} syncthing/$USERNAME
                cp -r ${temp_restore_dir}/home/$USERNAME/Sync /home/$USERNAME/
                if [ ! "$?" = "0" ]; then
                    rm -rf ${temp_restore_dir}
                    set_user_permissions
                    backup_unmount_drive
                    systemctl start syncthing
                    systemctl start cron
                    exit 68438
                fi
                rm -rf ${temp_restore_dir}

                # restore device IDs from config settings
                if [ -f /home/$USERNAME/.config/syncthing/.syncthing-server-id ]; then
                    cp /home/$USERNAME/.config/syncthing/.syncthing-server-id /home/$USERNAME/.syncthing-server-id
                    chown $USERNAME:$USERNAME /home/$USERNAME/.syncthing-server-id
                fi
                if [ -f /home/$USERNAME/.config/syncthing/.syncthingids ]; then
                    cp /home/$USERNAME/.config/syncthing/.syncthingids /home/$USERNAME/.syncthingids
                    chown $USERNAME:$USERNAME /home/$USERNAME/.syncthingids
                fi
            fi
        done
    fi

    if [ -f /etc/systemd/system/syncthing.service ]; then
        systemctl start syncthing
        systemctl start cron
    fi
}

function backup_remote_syncthing {
    if [ -d /root/.config/syncthing ]; then
        echo $"Backing up syncthing configuration"
        function_check backup_directory_to_friend
        backup_directory_to_friend /root/.config/syncthing syncthingconfig
        echo $"Backup of syncthing configuration complete"
    fi
    if [ -d /var/lib/syncthing/SyncShared ]; then
        echo $"Backing up syncthing shared files"
        function_check backup_directory_to_friend
        backup_directory_to_friend /var/lib/syncthing/SyncShared syncthingshared
        echo $"Backup of syncthing shared files complete"
    fi
}

function restore_remote_syncthing {
    if [ -f /etc/systemd/system/syncthing.service ]; then
        systemctl stop syncthing
        systemctl stop cron
    fi

    if [ -d $SERVER_DIRECTORY/backup/syncthingconfig ]; then
        echo $"Restoring syncthing configuration"
        temp_restore_dir=/root/tempsyncthingconfig
        function_check restore_directory_from_friend
        restore_directory_from_friend $temp_restore_dir syncthingconfig
        cp -r $temp_restore_dir/* /
        if [ ! "$?" = "0" ]; then
            systemctl start syncthing
            systemctl start cron
            exit 6833
        fi
        rm -rf $temp_restore_dir
    fi

    if [ -d $SERVER_DIRECTORY/backup/syncthingshared ]; then
        echo $"Restoring syncthing shared files"
        temp_restore_dir=/root/tempsyncthingshared
        function_check restore_directory_from_friend
        restore_directory_from_friend $temp_restore_dir syncthingshared
        cp -r $temp_restore_dir/* /
        if [ ! "$?" = "0" ]; then
            systemctl start syncthing
            systemctl start cron
            exit 37904
        fi
        rm -rf $temp_restore_dir
    fi

    if [ -d $SERVER_DIRECTORY/backup/syncthing ]; then
        for d in $SERVER_DIRECTORY/backup/syncthing/*/ ; do
            USERNAME=$(echo "$d" | awk -F '/' '{print $6}')
            if [[ $USERNAME != "git" && $USERNAME != "mirrors" && $USERNAME != "sync" && $USERNAME != "tahoelafs" ]]; then
                if [ ! -d /home/$USERNAME ]; then
                    ${PROJECT_NAME}-adduser $USERNAME
                fi
                echo $"Restoring syncthing files for $USERNAME"
                temp_restore_dir=/root/tempsyncthing
                function_check restore_directory_from_friend
                restore_directory_from_friend $temp_restore_dir syncthing/$USERNAME
                cp -r $temp_restore_dir/home/$USERNAME/Sync /home/$USERNAME/
                if [ ! "$?" = "0" ]; then
                    rm -rf $temp_restore_dir
                    systemctl start syncthing
                    systemctl start cron
                    exit 68438
                fi
                rm -rf $temp_restore_dir

                # restore device IDs from config settings
                if [ -f /home/$USERNAME/.config/syncthing/.syncthing-server-id ]; then
                    cp /home/$USERNAME/.config/syncthing/.syncthing-server-id /home/$USERNAME/.syncthing-server-id
                    chown $USERNAME:$USERNAME /home/$USERNAME/.syncthing-server-id
                fi
                if [ -f /home/$USERNAME/.config/syncthing/.syncthingids ]; then
                    cp /home/$USERNAME/.config/syncthing/.syncthingids /home/$USERNAME/.syncthingids
                    chown $USERNAME:$USERNAME /home/$USERNAME/.syncthingids
                fi
                echo $"Restore of syncthing files for $USERNAME complete"
            fi
        done
    fi

    if [ -f /etc/systemd/system/syncthing.service ]; then
        systemctl start syncthing
        systemctl start cron
    fi
}

function remove_syncthing {
    if ! grep -Fxq "install_syncthing" $COMPLETION_FILE; then
        return
    fi
    iptables -D INPUT -p udp --dport $SYNCTHING_PORT -j ACCEPT
    iptables -D INPUT -p tcp --dport $SYNCTHING_PORT -j ACCEPT
    function_check save_firewall_settings
    save_firewall_settings

    systemctl stop syncthing
    systemctl disable syncthing
    apt-get -y remove --purge syncthing
    rm /etc/systemd/system/syncthing.service
    sed -i "/${PROJECT_NAME}-syncthing/d" /etc/crontab
    sed -i '/install_syncthing/d' $COMPLETION_FILE
    sed -i '/configure_firewall_for_syncthing/d' $COMPLETION_FILE
    systemctl restart cron
}

function configure_firewall_for_syncthing {
    if grep -Fxq "configure_firewall_for_syncthing" $COMPLETION_FILE; then
        return
    fi
    iptables -A INPUT -p udp --dport $SYNCTHING_PORT -j ACCEPT
    iptables -A INPUT -p tcp --dport $SYNCTHING_PORT -j ACCEPT
    function_check save_firewall_settings
    save_firewall_settings

    OPEN_PORTS+=("Syncthing $SYNCTHING_PORT")
    echo 'configure_firewall_for_syncthing' >> $COMPLETION_FILE
}

function mesh_install_syncthing {
    chroot "$rootdir" wget -q https://syncthing.net/release-key.txt -O- | apt-key add -

    echo "deb http://apt.syncthing.net/ syncthing release" | tee $rootdir/etc/apt/sources.list.d/syncthing.list
    chroot "$rootdir" apt-get update
    chroot "$rootdir" apt-get -y --force-yes 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]' > $rootdir/etc/systemd/system/syncthing.service
    echo 'Description=Syncthing - Open Source Continuous File Synchronization' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'Documentation=man:syncthing(1)' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'After=network.target' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'Wants=syncthing-inotify@.service' >> $rootdir/etc/systemd/system/syncthing.service
    echo '' >> $rootdir/etc/systemd/system/syncthing.service
    echo '[Service]' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'User=root' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'ExecStart=/usr/bin/syncthing -no-browser -no-restart -logflags=0' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'Restart=on-failure' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'SuccessExitStatus=3 4' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'RestartForceExitStatus=3 4' >> $rootdir/etc/systemd/system/syncthing.service
    echo '' >> $rootdir/etc/systemd/system/syncthing.service
    echo '[Install]' >> $rootdir/etc/systemd/system/syncthing.service
    echo 'WantedBy=multi-user.target' >> $rootdir/etc/systemd/system/syncthing.service
    chroot "$rootdir" systemctl enable syncthing

    echo 'mesh_install_syncthing'
}

function install_syncthing {
    if [ $INSTALLING_MESH ]; then
        mesh_install_syncthing
        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 "Environment='all_proxy=socks5://localhost:9050'" >> /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

    function_check cron_add_mins
    cron_add_mins 1 "/usr/local/bin/${PROJECT_NAME}-syncthing > /dev/null"

    function_check configure_firewall_for_syncthing
    configure_firewall_for_syncthing
    echo 'install_syncthing' >> $COMPLETION_FILE
}

# NOTE: deliberately no exit 0