#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# gnusocial application
#
# License
# =======
#
# Copyright (C) 2014-2017 Bob Mottram <bob@freedombone.net>
#
# 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 full-vim media'

IN_DEFAULT_INSTALL=0
SHOW_ON_ABOUT=1

GNUSOCIAL_DOMAIN_NAME=
GNUSOCIAL_CODE=
GNUSOCIAL_ONION_PORT=8087
GNUSOCIAL_REPO="https://git.gnu.io/gnu/gnu-social.git"
GNUSOCIAL_COMMIT='1517deeeb621a0256106d0108855e8827713e2cc'
GNUSOCIAL_ADMIN_PASSWORD=

GNUSOCIAL_BACKGROUND_IMAGE_URL=
GNUSOCIAL_MARKDOWN_REPO="https://git.gnu.io/chimo/markdown.git"
GNUSOCIAL_MARKDOWN_COMMIT='03c53942f94b3376f0946e6e1fe566cc21ccf232'

# Sharings plugin for gnusocial
SHARINGS_REPO="http://git.lasindias.club/bashrc/Sharings"
SHARINGS_COMMIT='d5c6c7f855d9afff9086c09ea706f38c859bc0d4'
SHARINGS_THEME_REPO="http://git.lasindias.club/manuel/SharingsTheme"
SHARINGS_THEME_COMMIT='7106c7ef03'

GNUSOCIAL_TITLE='Pleroma FE'

# Number of months after which posts expire
GNUSOCIAL_EXPIRE_MONTHS=3

gnusocial_variables=(ONION_ONLY
                     GNUSOCIAL_DOMAIN_NAME
                     GNUSOCIAL_CODE
                     GNUSOCIAL_WELCOME_MESSAGE
                     GNUSOCIAL_BACKGROUND_IMAGE_URL
                     DDNS_PROVIDER
                     GNUSOCIAL_MARKDOWN_REPO
                     GNUSOCIAL_MARKDOWN_COMMIT
                     SHARINGS_REPO
                     SHARINGS_COMMIT
                     SHARINGS_THEME_REPO
                     SHARINGS_THEME_COMMIT
                     GNUSOCIAL_TITLE
                     GNUSOCIAL_EXPIRE_MONTHS
                     MY_USERNAME)

function gnusocial_fix_endless_reloads {
    # This fixes a bug introduced with commit 5f7032dfee1fd202c14e76a9f8b37af35d584901
    # and which causes OrFox to endlessly reload the page
    sed -i 's| && common_local_referer()||g' /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/lib/apiauthaction.php
}

function remove_user_gnusocial {
    remove_username="$1"

    ${PROJECT_NAME}-pass -u $remove_username --rmapp gnusocial

    function_check get_completion_param
    GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    if [ -d /var/www/$GNUSOCIAL_DOMAIN_NAME ]; then
        cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
        php scripts/deleteprofile.php -n $remove_username -y
    fi
}

function add_user_gnusocial {
    new_username="$1"
    new_user_password="$2"

    ${PROJECT_NAME}-pass -u $new_username -a gnusocial -p "$new_user_password"

    GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    if [ -d /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs ]; then
        cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
        php scripts/registeruser.php -n $new_username -w "$new_user_password" -e "$new_username@$HOSTNAME"
        ${PROJECT_NAME}-addemail -u $new_username -e "noreply@$GNUSOCIAL_DOMAIN_NAME" -g gnusocial --public no
        echo '0'
    else
        echo '1'
    fi
}

function install_interactive_gnusocial {
    if [ ! $ONION_ONLY ]; then
        ONION_ONLY='no'
    fi

    if [[ $ONION_ONLY != "no" ]]; then
        GNUSOCIAL_DOMAIN_NAME='gnusocial.local'
    else
        GNUSOCIAL_DETAILS_COMPLETE=
        while [ ! $GNUSOCIAL_DETAILS_COMPLETE ]
        do
            data=$(tempfile 2>/dev/null)
            trap "rm -f $data" 0 1 2 5 15
            if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
                dialog --backtitle $"Freedombone Configuration" \
                       --title $"GNU Social Configuration" \
                       --form $"\nPlease enter your GNU Social details. The background image URL can be left blank.\n\nIMPORTANT: This should be a domain name which is supported by Let's Encrypt:" 16 65 4 \
                       $"Domain:" 1 1 "$(grep 'GNUSOCIAL_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 1 25 33 40 \
                       $"Title:" 2 1 "$(grep '$GNUSOCIAL_TITLE' temp.cfg | awk -F '=' '{print $2}')" 2 25 255 255 \
                       $"Background image URL:" 3 1 "$(grep '$GNUSOCIAL_BACKGROUND_IMAGE_URL' temp.cfg | awk -F '=' '{print $2}')" 3 25 255 255 \
                       $"Code:" 4 1 "$(grep 'GNUSOCIAL_CODE' temp.cfg | awk -F '=' '{print $2}')" 4 25 33 255 \
                       2> $data
            else
                dialog --backtitle $"Freedombone Configuration" \
                       --title $"GNU Social Configuration" \
                       --form $"\nPlease enter your GNU Social details. The background image URL can be left blank.\n\nIMPORTANT: This should be a domain name which is supported by Let's Encrypt:" 16 65 4 \
                       $"Domain:" 1 1 "$(grep 'GNUSOCIAL_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 1 25 33 40 \
                       $"Title:" 2 1 "$(grep '$GNUSOCIAL_TITLE' temp.cfg | awk -F '=' '{print $2}')" 2 25 255 255 \
                       $"Background image URL:" 3 1 "$(grep '$GNUSOCIAL_BACKGROUND_IMAGE_URL' temp.cfg | awk -F '=' '{print $2}')" 3 25 255 255 \
                       2> $data
            fi
            sel=$?
            case $sel in
                1) exit 1;;
                255) exit 1;;
            esac
            GNUSOCIAL_DOMAIN_NAME=$(cat $data | sed -n 1p)
            title=$(cat $data | sed -n 2p)
            if [ ${#title} -gt 1 ]; then
                GNUSOCIAL_TITLE=$welcome_msg
            fi
            img_url=$(cat $data | sed -n 3p)
            if [ ${#img_url} -gt 1 ]; then
                GNUSOCIAL_BACKGROUND_IMAGE_URL=$img_url
            fi
            if [ $GNUSOCIAL_DOMAIN_NAME ]; then
                if [[ $GNUSOCIAL_DOMAIN_NAME == "$HUBZILLA_DOMAIN_NAME" ]]; then
                    GNUSOCIAL_DOMAIN_NAME=""
                fi
                TEST_DOMAIN_NAME=$GNUSOCIAL_DOMAIN_NAME
                validate_domain_name
                if [[ $TEST_DOMAIN_NAME != $GNUSOCIAL_DOMAIN_NAME ]]; then
                    GNUSOCIAL_DOMAIN_NAME=
                    dialog --title $"Domain name validation" --msgbox "$TEST_DOMAIN_NAME" 15 50
                else
                    if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
                        GNUSOCIAL_CODE=$(cat $data | sed -n 4p)
                        validate_freedns_code "$GNUSOCIAL_CODE"
                        if [ ! $VALID_CODE ]; then
                            GNUSOCIAL_DOMAIN_NAME=
                        fi
                    fi
                fi
            fi
            if [ $GNUSOCIAL_DOMAIN_NAME ]; then
                GNUSOCIAL_DETAILS_COMPLETE="yes"
            fi
        done

        # remove any invalid characters
        if [ ${#GNUSOCIAL_TITLE} -gt 0 ]; then
            new_title=$(echo "$GNUSOCIAL_TITLE" | sed "s|'||g")
            GNUSOCIAL_TITLE="$new_title"
        fi

        # save the results in the config file
        write_config_param "GNUSOCIAL_CODE" "$GNUSOCIAL_CODE"
        write_config_param "GNUSOCIAL_TITLE" "$GNUSOCIAL_TITLE"
        write_config_param "GNUSOCIAL_BACKGROUND_IMAGE_URL" "$GNUSOCIAL_BACKGROUND_IMAGE_URL"
    fi
    write_config_param "GNUSOCIAL_DOMAIN_NAME" "$GNUSOCIAL_DOMAIN_NAME"
    APP_INSTALLED=1
}

function change_password_gnusocial {
    curr_username="$1"
    new_user_password="$2"

    read_config_param 'GNUSOCIAL_DOMAIN_NAME'

    cd /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs/scripts
    php setpassword.php "$curr_username" "$new_user_password"

    ${PROJECT_NAME}-pass -u "$curr_username" -a gnusocial -p "$new_user_password"
}

function gnusocial_create_database {
    if [ -f $IMAGE_PASSWORD_FILE ]; then
        GNUSOCIAL_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
    else
        if [ ! $GNUSOCIAL_ADMIN_PASSWORD ]; then
            GNUSOCIAL_ADMIN_PASSWORD="$(create_password ${MINIMUM_PASSWORD_LENGTH})"
        fi
    fi
    if [ ! $GNUSOCIAL_ADMIN_PASSWORD ]; then
        return
    fi

    function_check create_database
    create_database gnusocial "$GNUSOCIAL_ADMIN_PASSWORD" $MY_USERNAME
}

function reconfigure_gnusocial {
    echo -n ''
}

function gnusocial_set_background_image {
    GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")

    data=$(tempfile 2>/dev/null)
    trap "rm -f $data" 0 1 2 5 15
    dialog --title $"GNU Social" \
           --backtitle $"Freedombone Control Panel" \
           --inputbox $'Set a background image URL' 10 60 2>$data
    sel=$?
    case $sel in
        0)
            temp_background=$(<$data)
            if [ ${#temp_background} -gt 0 ]; then
                GNUSOCIAL_BACKGROUND_IMAGE_URL="$temp_background"
                write_config_param "GNUSOCIAL_BACKGROUND_IMAGE_URL" "$GNUSOCIAL_BACKGROUND_IMAGE_URL"
                if [[ $(pleroma_set_background_image_from_url "$GNUSOCIAL_DOMAIN_NAME" "$GNUSOCIAL_BACKGROUND_IMAGE_URL" "$GNUSOCIAL_TITLE" | tail -n 1) == "0" ]]; then
                    dialog --title $"Set GNU Social login background" \
                           --msgbox $"The background image has been set" 6 60
                fi
            fi
           ;;
    esac
}

function gnusocial_set_title {
    data=$(tempfile 2>/dev/null)
    trap "rm -f $data" 0 1 2 5 15
    dialog --title $"GNU Social" \
           --backtitle $"Freedombone Control Panel" \
           --inputbox $'Set a title' 10 60 2>$data
    sel=$?
    case $sel in
        0)
            new_title=$(<$data)
            if [ ${#new_title} -gt 0 ]; then
                GNUSOCIAL_TITLE="$new_title"
                GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
                write_config_param "GNUSOCIAL_TITLE" "$GNUSOCIAL_TITLE"
                cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/static
                sed -i "s|\"name\":.*|\"name\": \"${GNUSOCIAL_TITLE}\",|g" config.json
                dialog --title $"Set GNU Social title" \
                       --msgbox $"The title has been set" 6 60
            fi
           ;;
    esac
}

function gnusocial_set_expire_months {
    GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    read_config_param "GNUSOCIAL_EXPIRE_MONTHS"

    data=$(tempfile 2>/dev/null)
    trap "rm -f $data" 0 1 2 5 15
    dialog --title $"GNU Social" \
           --backtitle $"Freedombone Control Panel" \
           --inputbox $'Set an expiry period for posts in months. Anything older will be deleted. Lower values help to keep the database size small and as fast as possible.' 12 60 "$GNUSOCIAL_EXPIRE_MONTHS" 2>$data
    sel=$?
    case $sel in
        0)
            new_expiry_months=$(<$data)
            if [ ${#new_expiry_months} -gt 0 ]; then
                # should contain no spaces
                if [[ "$new_expiry_months" == *" "* ]]; then
                    return
                fi
                # should be a number
                re='^[0-9]+$'
                if ! [[ $new_expiry_months =~ $re ]] ; then
                    return
                fi
                # set the new value
                GNUSOCIAL_EXPIRE_MONTHS=$new_expiry_months
                write_config_param "GNUSOCIAL_EXPIRE_MONTHS" "$GNUSOCIAL_EXPIRE_MONTHS"
                expire_gnusocial_posts "$GNUSOCIAL_DOMAIN_NAME" "gnusocial" "$GNUSOCIAL_EXPIRE_MONTHS"
                dialog --title $"Set GNU Social post expiry period" \
                       --msgbox $"Expiry period set to $GNUSOCIAL_EXPIRE_MONTHS months" 6 60
            fi
           ;;
    esac
}

function configure_interactive_gnusocial {
    while true
    do
        data=$(tempfile 2>/dev/null)
        trap "rm -f $data" 0 1 2 5 15
        dialog --backtitle $"Freedombone Control Panel" \
               --title $"GNU Social" \
               --radiolist $"Choose an operation:" 17 70 8 \
               1 $"Set a background image" off \
               2 $"Set the title" off \
               3 $"Set post expiry period (currently $GNUSOCIAL_EXPIRE_MONTHS months)" off \
               4 $"Select Qvitter user interface" off \
               5 $"Select Pleroma user interface" off \
               6 $"Select Classic user interface" off \
               7 $"Select Armadillo user interface" off \
               8 $"Exit" on 2> $data
        sel=$?
        case $sel in
            1) return;;
            255) return;;
        esac
        case $(cat $data) in
            1) gnusocial_set_background_image;;
            2) gnusocial_set_title;;
            3) gnusocial_set_expire_months;;
            4) gnusocial_use_qvitter gnusocial;;
            5) gnusocial_use_pleroma gnusocial;;
            6) gnusocial_use_classic gnusocial;;
            7) gnusocial_use_armadillo gnusocial;;
            8) break;;
        esac
    done
}

function upgrade_gnusocial {
    if grep -q "gnusocial domain" $COMPLETION_FILE; then
        GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    fi

    # update to the next commit
    function_check set_repo_commit
    set_repo_commit /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs "gnusocial commit" "$GNUSOCIAL_COMMIT" $GNUSOCIAL_REPO

    gnusocial_fix_endless_reloads

    # Ensure that installation script is removed
    if [ -f /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/install.php ]; then
        rm /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/install.php
    fi

    if [ -d $INSTALL_DIR/pleroma ]; then
        if [ -f /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs/index.php ]; then
            mv /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs/index.php /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs/index_qvitter.php
        fi
    fi

    gnusocial_block_user_script
    gnusocial_block_domain_script gnusocial $GNUSOCIAL_DOMAIN_NAME

    gnusocial_hourly_script gnusocial $GNUSOCIAL_DOMAIN_NAME
    upgrade_pleroma "$GNUSOCIAL_DOMAIN_NAME" "gnusocial" "$GNUSOCIAL_BACKGROUND_IMAGE_URL" "$GNUSOCIAL_TITLE"
    install_gnusocial_default_background "gnusocial" "$GNUSOCIAL_DOMAIN_NAME"
    chown -R www-data:www-data /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
}


function backup_local_gnusocial {
    GNUSOCIAL_DOMAIN_NAME='gnusocial'
    if grep -q "gnusocial domain" $COMPLETION_FILE; then
        GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    fi

    source_directory=/var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
    if [ -d $source_directory ]; then
        dest_directory=gnusocial
        function_check suspend_site
        suspend_site ${GNUSOCIAL_DOMAIN_NAME}

        function_check backup_directory_to_usb
        backup_directory_to_usb $source_directory $dest_directory

        function_check backup_database_to_usb
        backup_database_to_usb gnusocial

        function_check restart_site
        restart_site
    fi
}

function restore_local_gnusocial {
    if ! grep -q "gnusocial domain" $COMPLETION_FILE; then
        return
    fi
    GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
    if [ $GNUSOCIAL_DOMAIN_NAME ]; then
        echo $"Restoring gnusocial"
        temp_restore_dir=/root/tempgnusocial
        gnusocial_dir=/var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
        # stop the daemons
        cd $gnusocial_dir
        scripts/stopdaemons.sh

        function_check gnusocial_create_database
        gnusocial_create_database

        restore_database gnusocial ${GNUSOCIAL_DOMAIN_NAME}
        if [ -d $temp_restore_dir ]; then
            rm -rf $temp_restore_dir
        fi

        # start the daemons
        cd $gnusocial_dir
        su -c "sh scripts/startdaemons.sh" -s /bin/sh www-data
        echo $"Restore of gnusocial complete"
    fi
}

function backup_remote_gnusocial {
    if grep -q "gnusocial domain" $COMPLETION_FILE; then
        GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")
        temp_backup_dir=/var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
        if [ -d $temp_backup_dir ]; then
            function_check suspend_site
            suspend_site ${GNUSOCIAL_DOMAIN_NAME}

            function_check backup_database_to_friend
            backup_database_to_friend gnusocial

            echo $"Backing up GNU social installation"

            function_check backup_directory_to_friend
            backup_directory_to_friend $temp_backup_dir gnusocial

            function_check restart_site
            restart_site
        else
            echo $"gnusocial domain specified but not found in ${temp_backup_dir}"
        fi
    fi
}

function restore_remote_gnusocial {
    if grep -q "gnusocial domain" $COMPLETION_FILE; then
        echo $"Restoring gnusocial"
        GNUSOCIAL_DOMAIN_NAME=$(get_completion_param "gnusocial domain")

        # stop the daemons
        cd /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
        scripts/stopdaemons.sh

        function_check gnusocial_create_database
        gnusocial_create_database

        function_check restore_database_from_friend
        restore_database_from_friend gnusocial ${GNUSOCIAL_DOMAIN_NAME}
        if [ -d /root/tempgnusocial ]; then
            rm -rf /root/tempgnusocial
        fi

        # start the daemons
        cd /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs
        su -c "sh scripts/startdaemons.sh" -s /bin/sh www-data
        echo $"Restore of gnusocial complete"
    fi
}

function remove_gnusocial {
    if [ ${#GNUSOCIAL_DOMAIN_NAME} -eq 0 ]; then
        return
    fi
    function_check remove_nodejs
    remove_nodejs pleroma-gnusocial

    read_config_param "GNUSOCIAL_DOMAIN_NAME"
    read_config_param "MY_USERNAME"
    echo "Removing $GNUSOCIAL_DOMAIN_NAME"
    nginx_dissite $GNUSOCIAL_DOMAIN_NAME
    remove_certs $GNUSOCIAL_DOMAIN_NAME
    if [ -f /etc/cron.hourly/gnusocial-daemons ]; then
        rm /etc/cron.hourly/gnusocial-daemons
    fi
    if [ -f /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/scripts/stopdaemons.sh ]; then
        cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
        scripts/stopdaemons.sh
    fi
    kill_pid=$(ps aux | grep /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/scripts/queuedaemon.php | awk -F ' ' '{print $2}' | head -n 1)
    kill -9 $kill_pid

    if [ -d /var/www/$GNUSOCIAL_DOMAIN_NAME ]; then
        rm -rf /var/www/$GNUSOCIAL_DOMAIN_NAME
    fi
    if [ -f /etc/nginx/sites-available/$GNUSOCIAL_DOMAIN_NAME ]; then
        rm /etc/nginx/sites-available/$GNUSOCIAL_DOMAIN_NAME
    fi
    function_check drop_database
    drop_database gnusocial
    function_check remove_onion_service
    remove_onion_service gnusocial ${GNUSOCIAL_ONION_PORT}
    if grep -q "gnusocial" /etc/crontab; then
        sed -i "/gnusocial/d" /etc/crontab
    fi
    remove_app gnusocial
    remove_completion_param install_gnusocial
    sed -i '/gnusocial/d' $COMPLETION_FILE
    remove_backup_database_local gnusocial

    sed -i '/gnusocial-firewall/d' /etc/crontab

    function_check remove_ddns_domain
    remove_ddns_domain $GNUSOCIAL_DOMAIN_NAME
}

function install_gnusocial_main {
    if [ ! $GNUSOCIAL_DOMAIN_NAME ]; then
        echo $'No domain name was given for gnusocial'
        exit 7359
    fi

    if [[ $(app_is_installed gnusocial_main) == "1" ]]; then
        return
    fi

    gnusocial_hourly_script gnusocial $GNUSOCIAL_DOMAIN_NAME

    function_check install_mariadb
    install_mariadb

    function_check get_mariadb_password
    get_mariadb_password

    function_check repair_databases_script
    repair_databases_script

    apt-get -yq install php-gettext php-curl php-gd php-mysql git curl
    apt-get -yq install memcached php-memcached php-intl exiftool libfcgi0ldbl

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

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    git checkout $GNUSOCIAL_COMMIT -b $GNUSOCIAL_COMMIT
    set_completion_param "gnusocial commit" "$GNUSOCIAL_COMMIT"

    gnusocial_fix_endless_reloads

    chmod g+w /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    chmod a+w /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/avatar
    chmod a+w /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/file
    chown -R www-data:www-data /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    chmod +x /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/scripts/maildaemon.php

    function_check gnusocial_create_database
    gnusocial_create_database

    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/$GNUSOCIAL_DOMAIN_NAME/htdocs/scripts/maildaemon.php" /etc/aliases; then
        echo "*: /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/scripts/maildaemon.php" >> /etc/aliases
    fi

    function_check add_ddns_domain
    add_ddns_domain $GNUSOCIAL_DOMAIN_NAME

    gnusocial_nginx_site=/etc/nginx/sites-available/$GNUSOCIAL_DOMAIN_NAME
    if [[ $ONION_ONLY == "no" ]]; then
        function_check nginx_http_redirect
        nginx_http_redirect $GNUSOCIAL_DOMAIN_NAME "index index.php"
        echo 'server {' >> $gnusocial_nginx_site
        echo '  listen 443 ssl;' >> $gnusocial_nginx_site
        echo '  listen [::]:443 ssl;' >> $gnusocial_nginx_site
        echo "  server_name $GNUSOCIAL_DOMAIN_NAME;" >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        function_check nginx_compress
        nginx_compress $GNUSOCIAL_DOMAIN_NAME
        echo '' >> $gnusocial_nginx_site
        echo '  # Security' >> $gnusocial_nginx_site
        function_check nginx_ssl
        nginx_ssl $GNUSOCIAL_DOMAIN_NAME

        function_check nginx_disable_sniffing
        nginx_disable_sniffing $GNUSOCIAL_DOMAIN_NAME

        echo '  add_header Strict-Transport-Security max-age=15768000;' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Logs' >> $gnusocial_nginx_site
        echo '  access_log /dev/null;' >> $gnusocial_nginx_site
        echo '  error_log /dev/null;' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Root' >> $gnusocial_nginx_site
        echo "  root /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs;" >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Index' >> $gnusocial_nginx_site
        echo '  index index.php;' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # PHP' >> $gnusocial_nginx_site
        echo '  location ~ \.php {' >> $gnusocial_nginx_site
        echo '    include snippets/fastcgi-php.conf;' >> $gnusocial_nginx_site
        echo '    fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;' >> $gnusocial_nginx_site
        echo '  }' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Location' >> $gnusocial_nginx_site
        echo '  location / {' >> $gnusocial_nginx_site
        function_check nginx_limits
        nginx_limits $GNUSOCIAL_DOMAIN_NAME '15m'
        echo '    try_files $uri $uri/ @gnusocial;' >> $gnusocial_nginx_site
        echo '  }' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Fancy URLs' >> $gnusocial_nginx_site
        echo '  location @gnusocial {' >> $gnusocial_nginx_site
        echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> $gnusocial_nginx_site
        echo '  }' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        echo '  # Restrict access that is unnecessary anyway' >> $gnusocial_nginx_site
        echo '  location ~ /\.(ht|git) {' >> $gnusocial_nginx_site
        echo '    deny all;' >> $gnusocial_nginx_site
        echo '  }' >> $gnusocial_nginx_site
        echo '' >> $gnusocial_nginx_site
        # DO NOT ENABLE KEYBASE. gnusocial really doesn't like having a .well-known directory
        echo '}' >> $gnusocial_nginx_site
    else
        echo -n '' > $gnusocial_nginx_site
    fi
    echo 'server {' >> $gnusocial_nginx_site
    echo "    listen 127.0.0.1:$GNUSOCIAL_ONION_PORT default_server;" >> $gnusocial_nginx_site
    echo "    server_name $GNUSOCIAL_DOMAIN_NAME;" >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    function_check nginx_compress
    nginx_compress $GNUSOCIAL_DOMAIN_NAME
    echo '' >> $gnusocial_nginx_site
    function_check nginx_disable_sniffing
    nginx_disable_sniffing $GNUSOCIAL_DOMAIN_NAME
    echo '' >> $gnusocial_nginx_site
    echo '  # Logs' >> $gnusocial_nginx_site
    echo '  access_log /dev/null;' >> $gnusocial_nginx_site
    echo '  error_log /dev/null;' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # Root' >> $gnusocial_nginx_site
    echo "  root /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs;" >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # Index' >> $gnusocial_nginx_site
    echo '  index index.php;' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # PHP' >> $gnusocial_nginx_site
    echo '  location ~ \.php {' >> $gnusocial_nginx_site
    echo '    include snippets/fastcgi-php.conf;' >> $gnusocial_nginx_site
    echo '    fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;' >> $gnusocial_nginx_site
    echo '  }' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # Location' >> $gnusocial_nginx_site
    echo '  location / {' >> $gnusocial_nginx_site
    function_check nginx_limits
    nginx_limits $GNUSOCIAL_DOMAIN_NAME '15m'
    echo '    try_files $uri $uri/ @gnusocial;' >> $gnusocial_nginx_site
    echo '  }' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # Fancy URLs' >> $gnusocial_nginx_site
    echo '  location @gnusocial {' >> $gnusocial_nginx_site
    echo '    rewrite ^(.*)$ /index.php?p=$1 last;' >> $gnusocial_nginx_site
    echo '  }' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    echo '  # Restrict access that is unnecessary anyway' >> $gnusocial_nginx_site
    echo '  location ~ /\.(ht|git) {' >> $gnusocial_nginx_site
    echo '    deny all;' >> $gnusocial_nginx_site
    echo '  }' >> $gnusocial_nginx_site
    echo '' >> $gnusocial_nginx_site
    # DO NOT ENABLE KEYBASE. gnusocial really doesn't like having a .well-known directory
    echo '}' >> $gnusocial_nginx_site

    function_check configure_php
    configure_php

    function_check create_site_certificate
    create_site_certificate $GNUSOCIAL_DOMAIN_NAME 'yes'

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

    function_check backup_database_local
    backup_database_local gnusocial

    function_check nginx_ensite
    nginx_ensite $GNUSOCIAL_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 gnusocial
    gnusocial_ssl='always'
    if [[ $ONION_ONLY != 'no' ]]; then
        gnusocial_ssl='never'
    fi

    GNUSOCIAL_ONION_HOSTNAME=$(add_onion_service gnusocial 80 ${GNUSOCIAL_ONION_PORT})

    GNUSOCIAL_SERVER=${GNUSOCIAL_DOMAIN_NAME}
    if [[ $ONION_ONLY != 'no' ]]; then
        GNUSOCIAL_SERVER=${GNUSOCIAL_ONION_HOSTNAME}
    fi

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

    # check gnusocial has a config file
    gnusocial_config_file=/var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/config.php
    if [ ! -f $gnusocial_config_file ]; then
        drop_database gnusocial
        rm -rf /var/www/$GNUSOCIAL_DOMAIN_NAME
        echo $'Gnusocial config.php not found'
        exit 87586
    fi

    # Some useful settings
    if ! grep -q "Recommended GNU social settings" $gnusocial_config_file; then
        echo "" >> $gnusocial_config_file
        echo "// Recommended GNU social settings" >> $gnusocial_config_file
        echo "\$config['thumbnail']['maxsize'] = 3000;" >> $gnusocial_config_file
        echo "\$config['profile']['delete'] = true;" >> $gnusocial_config_file
        echo "\$config['profile']['changenick'] = true;" >> $gnusocial_config_file
        echo "\$config['public']['localonly'] = false;" >> $gnusocial_config_file
        echo "addPlugin('StoreRemoteMedia');" >> $gnusocial_config_file
        echo "\$config['queue']['enabled'] = true;" >> $gnusocial_config_file
        echo "\$config['queue']['daemon'] = true;" >> $gnusocial_config_file
        echo "\$config['ostatus']['hub_retries'] = 3;" >> $gnusocial_config_file
    fi

    # turn off logging
    echo "\$config['site']['logfile'] = '/dev/null';" >> $gnusocial_config_file
    echo "\$config['mail']['domain'] = '${DEFAULT_DOMAIN_NAME}';" >> $gnusocial_config_file

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

    systemctl restart mariadb
    systemctl restart php7.0-fpm
    systemctl restart nginx

    ${PROJECT_NAME}-addemail -u $MY_USERNAME -e "noreply@$GNUSOCIAL_DOMAIN_NAME" -g gnusocial --public no

    ${PROJECT_NAME}-pass -u $MY_USERNAME -a gnusocial -p "$GNUSOCIAL_ADMIN_PASSWORD"
    gnusocial_block_user_script
    gnusocial_block_domain_script gnusocial "$GNUSOCIAL_DOMAIN_NAME"

    set_completion_param "gnusocial domain" "$GNUSOCIAL_DOMAIN_NAME"

    install_completed gnusocial_main
}

function install_gnusocial_plugin_sharings {
    if [ ! -d /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins ]; then
        echo $'No local/plugins directory found for the gnusocial'
        exit 72945
    fi

    apt-get -yq install liblocale-msgfmt-perl gettext

    # update to the next commit
    function_check set_repo_commit
    set_repo_commit /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins "gnusocial sharings plugin commit" "$SHARINGS_COMMIT" $SHARINGS_REPO

    if [[ $(app_is_installed gnusocial_plugin_sharings) == "1" ]]; then
        return
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins
    function_check git_clone
    git_clone $SHARINGS_REPO Sharings
    if [ ! -d /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings ]; then
        echo $'Unable to clone gnusocial sharings plugin'
        exit 36738
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings
    git stash
    git checkout master
    git branch -D $SHARINGS_COMMIT
    git checkout $SHARINGS_COMMIT -b $SHARINGS_COMMIT

    # enable the plugin
    if ! grep -q "addPlugin('Sharings');" /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/config.php; then
        echo "addPlugin('Sharings');" >> /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/config.php
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    php scripts/checkschema.php
    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings
    php scripts/seedsharings.php
    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    php scripts/upgrade.php
    php scripts/checkschema.php

    # Languages
    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings/locale/en/LC_MESSAGES
    msgfmt -o Sharings.mo Sharings.po
    if [ ! -f Sharings.po ]; then
        echo $'English translations for gnusocial sharings plugin were not created'
        exit 84352
    fi
    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings/locale/en_GB/LC_MESSAGES
    msgfmt -o Sharings.mo Sharings.po
    if [ ! -f Sharings.po ]; then
        echo $'English (GB) translations for gnusocial sharings plugin were not created'
        exit 84352
    fi
    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings/locale/en_US/LC_MESSAGES
    msgfmt -o Sharings.mo Sharings.po
    if [ ! -f Sharings.po ]; then
        echo $'English (US) translations for gnusocial sharings plugin were not created'
        exit 84352
    fi

    # Looks like this update function isn't supported by the current php version
    sed -i 's|ActivityVerb::UPDATE, ||g' /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/Sharings/SharingsPlugin.php

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

    set_completion_param gnusocial "sharings plugin commit" "$SHARINGS_COMMIT"
    install_completed gnusocial_plugin_sharings
}

function install_gnusocial_plugin_sharings_theme {
    if [ ! -d /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins ]; then
        echo $'No local/plugins directory found for the gnusocial'
        exit 74458
    fi

    # update to the next commit
    function_check set_repo_commit
    set_repo_commit /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins "gnusocial sharings theme plugin commit" "$SHARINGS_THEME_COMMIT" $SHARINGS_THEME_REPO

    if [[ $(app_is_installed gnusocial_plugin_sharings_theme) == "1" ]]; then
        return
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins
    function_check git_clone
    git_clone $SHARINGS_THEME_REPO SharingsTheme
    if [ ! -d /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/SharingsTheme ]; then
        echo $'Unable to clone gnusocial sharings plugin theme'
        exit 639253
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/local/plugins/SharingsTheme
    git stash
    git checkout master
    git branch -D $SHARINGS_THEME_COMMIT
    git checkout $SHARINGS_THEME_COMMIT -b $SHARINGS_THEME_COMMIT

    # enable the plugin
    if ! grep -q "addPlugin('SharingsTheme');" /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/config.php; then
        echo "addPlugin('SharingsTheme');" >> /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs/config.php
    fi

    cd /var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs
    php scripts/checkschema.php

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

    set_completion_param "gnusocial sharings plugin theme commit" "$SHARINGS_THEME_COMMIT"
    install_completed gnusocial_plugin_sharings_theme
}

function install_gnusocial_markdown {
    GNUSOCIAL_PATH=/var/www/$GNUSOCIAL_DOMAIN_NAME/htdocs

    # update to the next commit
    function_check set_repo_commit
    set_repo_commit $GNUSOCIAL_PATH/local/plugins/Markdown "gnusocial Markdown commit" "$GNUSOCIAL_MARKDOWN_COMMIT" $GNUSOCIAL_MARKDOWN_REPO

    if [[ $(app_is_installed gnusocial_markdown) == "1" ]]; then
        return
    fi

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

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

    cd $GNUSOCIAL_PATH/local/plugins
    function_check git_clone
    git_clone $GNUSOCIAL_MARKDOWN_REPO Markdown
    cd $GNUSOCIAL_PATH/local/plugins/Markdown
    git checkout $GNUSOCIAL_MARKDOWN_COMMIT -b $GNUSOCIAL_MARKDOWN_COMMIT

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

    set_completion_param "gnusocial markdown commit" "$GNUSOCIAL_MARKDOWN_COMMIT"

    chown -R www-data:www-data $GNUSOCIAL_PATH

    install_completed gnusocial_markdown
}

function install_gnusocial {
    if [ ! $ONION_ONLY ]; then
        ONION_ONLY='no'
    fi

    install_gnusocial_main
    expire_gnusocial_posts "$GNUSOCIAL_DOMAIN_NAME" "gnusocial" "$GNUSOCIAL_EXPIRE_MONTHS"
    install_qvitter "$GNUSOCIAL_DOMAIN_NAME" "gnusocial"
    install_gnusocial_markdown
    #install_gnusocial_plugin_sharings
    #install_gnusocial_plugin_sharings_theme

    # Currently Pleroma won't install on ARM systems
    # because it uses node-sass which doesn't support ARM
    if [[ "$(arch)" == "arm"* ]]; then
        echo -m $'WARNING: Pleroma currently does not support ARM '
        echo $'architecture, so it will not be installed'
    else
        function_check install_nodejs
        install_nodejs pleroma-gnusocial
        install_pleroma_front_end "gnusocial" "$GNUSOCIAL_DOMAIN_NAME" "$GNUSOCIAL_BACKGROUND_IMAGE_URL" "$GNUSOCIAL_TITLE"
        install_gnusocial_default_background "gnusocial" "$GNUSOCIAL_DOMAIN_NAME"
        sed -i 's|"theme":.*|"theme": "base16-apathy.css",|g' /var/www/${GNUSOCIAL_DOMAIN_NAME}/htdocs/static/config.json
    fi

    # unleash the daemons!
    /etc/cron.hourly/gnusocial-daemons

    systemctl restart nginx

    APP_INSTALLED=1
}

# NOTE: deliberately there is no "exit 0"