#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Lychee photo album
#
# License
# =======
#
# Copyright (C) 2014-2016 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 writer"

IN_DEFAULT_INSTALL=0
SHOW_ON_ABOUT=1

LYCHEE_DOMAIN_NAME=
LYCHEE_CODE=
LYCHEE_ONION_PORT=8105
LYCHEE_REPO="https://github.com/electerious/Lychee"
LYCHEE_COMMIT='3eaaed72715b30bf10ce66a5f75268467bcb728d'

lychee_variables=(LYCHEE_REPO
                  LYCHEE_COMMIT
                  LYCHEE_DOMAIN_NAME
                  LYCHEE_CODE
                  ONION_ONLY
                  DDNS_PROVIDER
                  MY_USERNAME)


function remove_user_lychee {
    remove_username="$1"

}

function add_user_lychee {
    if [[ $(app_is_installed lychee) == "0" ]]; then
        echo '0'
        return
    fi

    new_username="$1"
    new_user_password="$2"

    echo '0'
}

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

    if [[ $ONION_ONLY != "no" ]]; then
        LYCHEE_DOMAIN_NAME='lychee.local'
        write_config_param "LYCHEE_DOMAIN_NAME" "$LYCHEE_DOMAIN_NAME"
    else
        function_check interactive_site_details
        interactive_site_details "lychee" "LYCHEE_DOMAIN_NAME" "LYCHEE_CODE"
    fi
    APP_INSTALLED=1
}

function change_password_lychee {
    set_completion_param "lychee domain" "$LYCHEE_DOMAIN_NAME"
    LYCHEE_DOMAIN_NAME=$(get_completion_param "lychee domain")

    LYCHEE_USERNAME="$1"
    LYCHEE_PASSWORD="$2"
    if [ ${#LYCHEE_PASSWORD} -lt 8 ]; then
        echo $'Lychee password is too short'
        return
    fi
}

function reconfigure_lychee {
    echo -n ''
}

function upgrade_lychee {
    read_config_param "LYCHEE_DOMAIN_NAME"

    function_check set_repo_commit
    set_repo_commit /var/www/$LYCHEE_DOMAIN_NAME/htdocs "lychee commit" "$LYCHEE_COMMIT" $LYCHEE_REPO
}

function backup_local_lychee {
    LYCHEE_DOMAIN_NAME='lychee.local'
    if grep -q "lychee domain" $COMPLETION_FILE; then
        LYCHEE_DOMAIN_NAME=$(get_completion_param "lychee domain")
    fi

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

        function_check backup_directory_to_usb
        backup_directory_to_usb $source_directory $dest_directory

        function_check restart_site
        restart_site
    fi
}

function restore_local_lychee {
    LYCHEE_DOMAIN_NAME='lychee.local'
    if grep -q "lychee domain" $COMPLETION_FILE; then
        LYCHEE_DOMAIN_NAME=$(get_completion_param "lychee domain")
    fi
    if [ $LYCHEE_DOMAIN_NAME ]; then
        temp_restore_dir=/root/templychee
        if [ -d $USB_MOUNT/backup/lychee ]; then
            restore_directory_from_usb $temp_restore_dir lychee
        else
            restore_directory_from_usb $temp_restore_dir blog
        fi
        if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/htdocs ]; then
            if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/previous ]; then
                rm -rf /var/www/${LYCHEE_DOMAIN_NAME}/previous
            fi
            mv /var/www/${LYCHEE_DOMAIN_NAME}/htdocs /var/www/${LYCHEE_DOMAIN_NAME}/previous
        fi
        temp_source_dir=$(find ${temp_restore_dir} -name htdocs)
        cp -r ${temp_source_dir} /var/www/${LYCHEE_DOMAIN_NAME}/
        if [ ! "$?" = "0" ]; then
            if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/previous ]; then
                mv /var/www/${LYCHEE_DOMAIN_NAME}/previous /var/www/${LYCHEE_DOMAIN_NAME}/htdocs
            fi
            set_user_permissions
            backup_unmount_drive
            exit 54675
        fi
        rm -rf ${temp_restore_dir}
        chown -R www-data:www-data /var/www/${LYCHEE_DOMAIN_NAME}/htdocs
        # Ensure that the bundled SSL cert is being used
        if [ -f /etc/ssl/certs/${LYCHEE_DOMAIN_NAME}.bundle.crt ]; then
            sed -i "s|${LYCHEE_DOMAIN_NAME}.crt|${LYCHEE_DOMAIN_NAME}.bundle.crt|g" /etc/nginx/sites-available/${LYCHEE_DOMAIN_NAME}
        fi
        if [ -d /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME} ]; then
            ln -s /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME}/privkey.pem /etc/ssl/private/${LYCHEE_DOMAIN_NAME}.key
            ln -s /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME}/fullchain.pem /etc/ssl/certs/${LYCHEE_DOMAIN_NAME}.pem
        fi
    fi
}

function backup_remote_lychee {
    if grep -q "lychee domain" $COMPLETION_FILE; then
        LYCHEE_DOMAIN_NAME=$(get_completion_param "lychee domain")
        temp_backup_dir=/var/www/${LYCHEE_DOMAIN_NAME}/htdocs
        if [ -d $temp_backup_dir ]; then
            echo $"Backing up lychee"
            backup_directory_to_friend $temp_backup_dir lychee
            echo $"Backup of lychee complete"
        else
            echo $"Lychee domain specified but not found in $temp_backup_dir"
            exit 2578
        fi
    fi
}

function restore_remote_lychee {
    if [ -d $SERVER_DIRECTORY/backup/lychee ]; then
        LYCHEE_DOMAIN_NAME=$(get_completion_param "lychee domain")
        echo $"Restoring lychee installation $LYCHEE_DOMAIN_NAME"
        temp_restore_dir=/root/templychee
        mkdir $temp_restore_dir
        function_check restore_directory_from_friend
        restore_directory_from_friend $temp_restore_dir lychee
        if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/htdocs ]; then
            if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/previous ]; then
                rm -rf /var/www/${LYCHEE_DOMAIN_NAME}/previous
            fi
            mv /var/www/${LYCHEE_DOMAIN_NAME}/htdocs /var/www/${LYCHEE_DOMAIN_NAME}/previous
        fi
        temp_source_dir=$(find ${temp_restore_dir} -name htdocs)
        cp -r ${temp_source_dir} /var/www/${LYCHEE_DOMAIN_NAME}/
        if [ ! "$?" = "0" ]; then
            if [ -d /var/www/${LYCHEE_DOMAIN_NAME}/previous ]; then
                mv /var/www/${LYCHEE_DOMAIN_NAME}/previous /var/www/${LYCHEE_DOMAIN_NAME}/htdocs
            fi
            exit 593
        fi
        rm -rf ${temp_restore_dir}
        # Ensure that the bundled SSL cert is being used
        if [ -f /etc/ssl/certs/${LYCHEE_DOMAIN_NAME}.bundle.crt ]; then
            sed -i "s|${LYCHEE_DOMAIN_NAME}.crt|${LYCHEE_DOMAIN_NAME}.bundle.crt|g" /etc/nginx/sites-available/${LYCHEE_DOMAIN_NAME}
        fi
        if [ -d /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME} ]; then
            ln -s /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME}/privkey.pem /etc/ssl/private/${LYCHEE_DOMAIN_NAME}.key
            ln -s /etc/letsencrypt/live/${LYCHEE_DOMAIN_NAME}/fullchain.pem /etc/ssl/certs/${LYCHEE_DOMAIN_NAME}.pem
        fi
        echo $"Restore of lychee complete"
    fi
}

function remove_lychee {
    if [ ${#LYCHEE_DOMAIN_NAME} -eq 0 ]; then
        return
    fi

    read_config_param "LYCHEE_DOMAIN_NAME"
    nginx_dissite $LYCHEE_DOMAIN_NAME
    remove_certs ${LYCHEE_DOMAIN_NAME}
    if [ -f /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME ]; then
        rm -f /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    fi
    if [ -d /var/www/$LYCHEE_DOMAIN_NAME ]; then
        rm -rf /var/www/$LYCHEE_DOMAIN_NAME
    fi
    remove_config_param LYCHEE_DOMAIN_NAME
    remove_config_param LYCHEE_CODE
    function_check remove_onion_service
    remove_onion_service lychee ${LYCHEE_ONION_PORT}
    remove_completion_param "install_lychee"
    sed -i '/Lychee/d' $COMPLETION_FILE
    sed -i '/lychee/d' $COMPLETION_FILE
    sed -i '/lychee/d' /home/$MY_USERNAME/README
    sed -i '/Lychee/d' /home/$MY_USERNAME/README

    function_check remove_ddns_domain
    remove_ddns_domain $LYCHEE_DOMAIN_NAME
}

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

function install_lychee_website {
    function_check nginx_http_redirect
    nginx_http_redirect $LYCHEE_DOMAIN_NAME
    echo 'server {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    listen 443 ssl;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    root /var/www/$LYCHEE_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    server_name $LYCHEE_DOMAIN_NAME;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    access_log off;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    error_log /var/log/nginx/${LYCHEE_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    index index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    charset utf-8;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    function_check nginx_ssl
    nginx_ssl $LYCHEE_DOMAIN_NAME
    function_check nginx_disable_sniffing
    nginx_disable_sniffing $LYCHEE_DOMAIN_NAME
    echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location / {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    function_check nginx_limits
    nginx_limits $LYCHEE_DOMAIN_NAME
    echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        allow all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        expires 30d;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # block these file types' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # or a unix socket' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /\. {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    #deny access to store' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /store {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '      deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '      deny  all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
}

function install_lychee_website_onion {
    echo 'server {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    listen 127.0.0.1:${LYCHEE_ONION_PORT} default_server;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    root /var/www/$LYCHEE_DOMAIN_NAME/htdocs;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    server_name $LYCHEE_DOMAIN_NAME;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    access_log off;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    error_log /var/log/nginx/${LYCHEE_DOMAIN_NAME}_error_ssl.log $WEBSERVER_LOG_LEVEL;" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    index index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    charset utf-8;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    proxy_read_timeout 86400s;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    function_check nginx_disable_sniffing
    nginx_disable_sniffing $LYCHEE_DOMAIN_NAME
    echo '    add_header Strict-Transport-Security "max-age=0;";' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # rewrite to front controller as default rule' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location / {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    function_check nginx_limits
    nginx_limits $LYCHEE_DOMAIN_NAME
    echo '        rewrite ^/(.*) /index.php?q=$uri&$args last;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "    # make sure webfinger and other well known services aren't blocked" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # by denying dot files and rewrite request to the front controller' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ^~ /.well-known/ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        allow all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # statically serve these file types when possible' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # otherwise fall back to front controller' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # allow browser to cache them' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # added .htm for advanced source code editor library' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        expires 30d;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        try_files $uri /index.php?q=$uri&$args;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # block these file types' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.(tpl|md|tgz|log|out)$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # or a unix socket' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~* \.php$ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    function_check nginx_limits
    nginx_limits $LYCHEE_DOMAIN_NAME
    echo '        # Zero-day exploit defense.' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # http://forum.nginx.org/read.php?2,88845,page=3' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # Won't work properly (404 error) if the file is not stored on this" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # server, which is entirely possible with php-fpm/php-fcgi." >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on" >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo "        # another machine. And then cross your fingers that you won't get hacked." >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        try_files $uri $uri/ /index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # With php5-cgi alone:' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # fastcgi_pass 127.0.0.1:9000;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        # With php5-fpm:' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_pass unix:/var/run/php5-fpm.sock;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        include fastcgi_params;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_index index.php;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    # deny access to all dot files' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /\. {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    #deny access to store' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /store {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '        deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /(data|conf|bin|inc)/ {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '      deny all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    location ~ /\.ht {' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '      deny  all;' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '    }' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    echo '}' >> /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
}

function install_lychee_from_repo {
    if [ ! -d /var/www/$LYCHEE_DOMAIN_NAME ]; then
        mkdir /var/www/$LYCHEE_DOMAIN_NAME
    fi

    cd /var/www/$LYCHEE_DOMAIN_NAME
    git_clone $LYCHEE_REPO htdocs
    cd htdocs
    git checkout $LYCHEE_COMMIT -b $LYCHEE_COMMIT
    set_completion_param "lychee commit" "$LYCHEE_COMMIT"
}

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

    if [ ! $LYCHEE_DOMAIN_NAME ]; then
        echo $'The lychee domain name was not specified'
        exit 543672
    fi

    # for the avatar changing command
    apt-get -yq install imagemagick exif zip

    function_check install_lychee_from_repo
    install_lychee_from_repo

    if [[ $ONION_ONLY == "no" ]]; then
        function_check install_lychee_website
        install_lychee_website
    else
        echo -n '' > /etc/nginx/sites-available/$LYCHEE_DOMAIN_NAME
    fi
    function_check install_lychee_website_onion
    install_lychee_website_onion

    function_check create_site_certificate
    create_site_certificate $LYCHEE_DOMAIN_NAME 'yes'

    function_check configure_php
    configure_php

    chmod -R 777 /var/www/$LYCHEE_DOMAIN_NAME/htdocs/uploads/
    chmod -R 777 /var/www/$LYCHEE_DOMAIN_NAME/htdocs/data/
    chown -R www-data:www-data /var/www/$LYCHEE_DOMAIN_NAME/htdocs

    LYCHEE_ONION_HOSTNAME=$(add_onion_service lychee 80 ${LYCHEE_ONION_PORT})

    function_check nginx_ensite
    nginx_ensite $LYCHEE_DOMAIN_NAME

    systemctl restart php5-fpm
    systemctl restart nginx

    if ! grep -q "Lychee onion domain" /home/$MY_USERNAME/README; then
        echo $"Lychee onion domain: ${LYCHEE_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
        echo $"Log into your lychee at https://${LYCHEE_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

    function_check add_ddns_domain
    add_ddns_domain $LYCHEE_DOMAIN_NAME

    set_completion_param "lychee domain" "$LYCHEE_DOMAIN_NAME"
    APP_INSTALLED=1
}

# NOTE: deliberately no exit 0