#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Dokuwiki application
#
# License
# =======
#
# Copyright (C) 2014-2018 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

DOKUWIKI_DOMAIN_NAME=
DOKUWIKI_CODE=
DOKUWIKI_ONION_PORT=8089
DOKUWIKI_ADMIN_PASSWORD=
DOKUWIKI_TITLE="${PROJECT_NAME} Dokuwiki"

DOKUWIKI_REPO="https://github.com/splitbrain/dokuwiki"
DOKUWIKI_COMMIT='be15c01c0b982cf1a75b5af031bf077143c63f39'

dokuwiki_variables=(ONION_ONLY
                    MY_USERNAME
                    DOKUWIKI_TITLE
                    DOKUWIKI_DOMAIN_NAME
                    DOKUWIKI_CODE
                    DDNS_PROVIDER)

function logging_on_dokuwiki {
    echo -n ''
}

function logging_off_dokuwiki {
    echo -n ''
}

function install_interactive_dokuwiki {
    if [[ $ONION_ONLY != "no" ]]; then
        DOKUWIKI_TITLE=$'My Dokuwiki'
        DOKUWIKI_DOMAIN_NAME='dokuwiki.local'
        write_config_param "DOKUWIKI_TITLE" "$DOKUWIKI_TITLE"
        write_config_param "DOKUWIKI_DOMAIN_NAME" "$DOKUWIKI_DOMAIN_NAME"
    else
        function_check interactive_site_details_with_title
        interactive_site_details_with_title "dokuwiki" "DOKUWIKI_TITLE" "DOKUWIKI_DOMAIN_NAME" "DOKUWIKI_CODE"
    fi
    APP_INSTALLED=1
}

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

    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")
    if grep -q "$curr_username:" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"; then
        HASHED_DOKUWIKI_PASSWORD=$(echo -n "$new_user_password" | md5sum | awk -F ' ' '{print $1}')
        existing_user=$(grep "$curr_username:" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php" | hean -n 1)
        if [[ "$existing_user" == *":admin,"* ]]; then
            sed -i "s|$curr_username:.*|$curr_username:$HASHED_DOKUWIKI_PASSWORD:$curr_username:$curr_username@$HOSTNAME:admin,user,upload|g" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
        else
            sed -i "s|$curr_username:.*|$curr_username:$HASHED_DOKUWIKI_PASSWORD:$curr_username:$curr_username@$HOSTNAME:user,upload|g" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
        fi
        cp "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
        chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
        chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
        "${PROJECT_NAME}-pass" -u "$curr_username" -a dokuwiki -p "$new_user_password"
    fi
}

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

    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")
    HASHED_DOKUWIKI_PASSWORD=$(echo -n "$new_user_password" | md5sum | awk -F ' ' '{print $1}')
    echo "$new_username:$HASHED_DOKUWIKI_PASSWORD:$new_username:$new_username@$HOSTNAME:user,upload" >> "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
    cp "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
    "${PROJECT_NAME}-pass" -u "$new_username" -a dokuwiki -p "$new_user_password"
}

function remove_user_dokuwiki {
    remove_username="$1"

    read_config_param "DOKUWIKI_DOMAIN_NAME"
    if grep -q "$remove_username:" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"; then
        sed -i "/$remove_username:/d" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
        sed -i "/$remove_username:/d" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
        "${PROJECT_NAME}-pass" -u "$remove_username" --rmapp dokuwiki
    fi
}

function reconfigure_dokuwiki {
    echo -n ''
}

function upgrade_dokuwiki {
    function_check set_repo_commit
    set_repo_commit "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs" "dokuwiki commit" "$DOKUWIKI_COMMIT" $DOKUWIKI_REPO
}

function backup_local_dokuwiki {
    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")

    function_check backup_directory_to_usb

    # backup the data
    source_directory="/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data"
    if [ -d "$source_directory" ]; then
        dest_directory=dokuwikidat
        backup_directory_to_usb "$source_directory" "$dest_directory"
    fi

    # backup the users
    source_directory="/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl"
    if [ -d "$source_directory" ]; then
        dest_directory=dokuwikiacl
        cp "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users*.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        backup_directory_to_usb "$source_directory" "$dest_directory"
    fi
}

function restore_local_dokuwiki {
    echo $"Restoring Dokuwiki installation"
    function_check get_completion_param
    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")

    # restore the data
    temp_restore_dir=/root/tempdokuwikidat
    function_check restore_directory_from_usb
    restore_directory_from_usb ${temp_restore_dir} dokuwikidat
    if [ -d "${temp_restore_dir}/var/www/${DOKUWIKI_DOMAIN_NAME}/htdocs/data" ]; then
        cp -r "${temp_restore_dir}/var/www/${DOKUWIKI_DOMAIN_NAME}/htdocs/data/"* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data"
    else
        cp -r "${temp_restore_dir}/"* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data"
    fi
    # shellcheck disable=SC2181
    if [ ! "$?" = "0" ]; then
        function_check restore_directory_from_usb
        set_user_permissions
        function_check backup_unmount_drive
        backup_unmount_drive
        rm -rf ${temp_restore_dir}
        exit 683352
    fi
    rm -rf ${temp_restore_dir}

    # restore the users
    temp_restore_dir=/root/tempdokuwikiacl
    function_check restore_directory_from_usb
    restore_directory_from_usb ${temp_restore_dir} dokuwikiacl
    if [ -d "${temp_restore_dir}/var/www/${DOKUWIKI_DOMAIN_NAME}/htdocs/lib/plugins/acl" ]; then
        cp "${temp_restore_dir}/var/www/${DOKUWIKI_DOMAIN_NAME}/htdocs/lib/plugins/acl/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        cp "${temp_restore_dir}/var/www/${DOKUWIKI_DOMAIN_NAME}/htdocs/lib/plugins/acl/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/"
    else
        cp "${temp_restore_dir}/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        cp "${temp_restore_dir}/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/"
    fi
    # shellcheck disable=SC2181
    if [ ! "$?" = "0" ]; then
        function_check restore_directory_from_usb
        set_user_permissions
        function_check backup_unmount_drive
        backup_unmount_drive
        rm -rf ${temp_restore_dir}
        exit 456495
    fi
    rm -rf ${temp_restore_dir}

    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib"
    chown -R www-data:www-data "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
    echo $"Restore of Dokuwiki complete"
}

function backup_remote_dokuwiki {
    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")
    if [ -d "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs" ]; then
        echo $"Backing up dokuwiki"
        backup_directory_to_friend "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data" dokuwikidat
        cp "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users*.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        backup_directory_to_friend "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl" dokuwikiacl
    fi
}

function restore_remote_dokuwiki {
    DOKUWIKI_DOMAIN_NAME=$(get_completion_param "dokuwiki domain")
    function_check get_completion_param
    function_check restore_directory_from_friend

    if [ -d "$SERVER_DIRECTORY/backup/dokuwikidat" ]; then
        echo $"Restoring Dokuwiki data for $DOKUWIKI_DOMAIN_NAME"
        temp_restore_dir=/root/tempdokuwikidat
        restore_directory_from_friend $temp_restore_dir dokuwikidat
        if [ -d "$temp_restore_dir/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data" ]; then
            cp -r "$temp_restore_dir/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data/"* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data/"
        else
            cp -r $temp_restore_dir/* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data/"
        fi
        # shellcheck disable=SC2181
        if [ ! "$?" = "0" ]; then
            exit 92634
        fi
        rm -rf $temp_restore_dir

        echo $"Restore of Dokuwiki data complete"
    fi

    if [ -d "$SERVER_DIRECTORY/backup/dokuwikiacl" ]; then
        echo $"Restoring Dokuwiki users for $DOKUWIKI_DOMAIN_NAME"
        temp_restore_dir=/root/tempdokuwikiacl
        restore_directory_from_friend $temp_restore_dir dokuwikiacl
        if [ -d "$temp_restore_dir/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl" ]; then
            cp -r "$temp_restore_dir/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        else
            cp -r $temp_restore_dir/* "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/"
        fi
        # shellcheck disable=SC2181
        if [ ! "$?" = "0" ]; then
            exit 735287
        fi
        rm -rf $temp_restore_dir

        echo $"Restore of Dokuwiki users complete"
    fi

    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data/data"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data/lib"
    chown -R www-data:www-data "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
}

function remove_dokuwiki {
    if [ ${#DOKUWIKI_DOMAIN_NAME} -eq 0 ]; then
        return
    fi
    function_check remove_onion_service
    remove_onion_service dokuwiki ${DOKUWIKI_ONION_PORT}
    nginx_dissite "$DOKUWIKI_DOMAIN_NAME"
    remove_certs "$DOKUWIKI_DOMAIN_NAME"
    if [ -f "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME" ]; then
        rm "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    fi
    if [ ! -d "/var/www/$DOKUWIKI_DOMAIN_NAME" ]; then
        rm -rf "/var/www/$DOKUWIKI_DOMAIN_NAME"
    fi
    if [ -d /var/lib/dokuwiki ]; then
        rm -rf /var/lib/dokuwiki
    fi
    if [ -d /etc/dokuwiki ]; then
        rm -rf /etc/dokuwiki
    fi
    if [ -d /usr/share/dokuwiki ]; then
        rm -rf /usr/share/dokuwiki
    fi
    remove_completion_param "install_dokuwiki"
    remove_completion_param "dokuwiki domain"
    sed -i '/dokuwiki/d' "$COMPLETION_FILE"

    function_check remove_ddns_domain
    remove_ddns_domain "$DOKUWIKI_DOMAIN_NAME"
}

function install_dokuwiki {
    if [ ! "$DOKUWIKI_DOMAIN_NAME" ]; then
        return
    fi

    apt-get -yq install php-common php-cli php-curl php-gd php-mcrypt git
    apt-get -yq install php-dev imagemagick php-imagick libfcgi0ldbl
    apt-get -yq install php-memcached memcached

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

    if [ ! -f "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/install.php" ]; then
        cd "/var/www/$DOKUWIKI_DOMAIN_NAME" || exit 23468246824

        if [ -d /repos/dokuwiki ]; then
            mkdir "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
            cp -r -p /repos/dokuwiki/. "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
            cd "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs" || exit 24687462
            git pull
        else
            function_check git_clone
            git_clone "$DOKUWIKI_REPO" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
        fi

        cd "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs" || exit 38368832
        git checkout "$DOKUWIKI_COMMIT" -b "$DOKUWIKI_COMMIT"
        set_completion_param "dokuwiki commit" "$DOKUWIKI_COMMIT"

    fi

    apt-get -yq remove --purge apache2-bin*
    if [ -d /etc/apache2 ]; then
        rm -rf /etc/apache2
        echo $'Removed Apache installation after Dokuwiki install'
    fi

    { echo '<?php';
      echo "\$conf['title'] = '${DOKUWIKI_TITLE}';";
      echo "\$conf['lang'] = 'en';";
      echo "\$conf['license'] = 'cc-by-sa';";
      echo "\$conf['useacl'] = 1;";
      echo "\$conf['superuser'] = '@admin';";
      echo "\$conf['disableactions'] = 'register';"; } > "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/local.php"
    ln -s "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/local.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/local.php"

    chmod 600 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/local.php"
    chown -R www-data:www-data "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib"
    chmod -R 755 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/data"

    if [ -f "$IMAGE_PASSWORD_FILE" ]; then
        DOKUWIKI_ADMIN_PASSWORD="$(printf "%s" "$(cat "$IMAGE_PASSWORD_FILE")")"
    else
        if [ ! "$DOKUWIKI_ADMIN_PASSWORD" ]; then
            DOKUWIKI_ADMIN_PASSWORD="$(create_password "${MINIMUM_PASSWORD_LENGTH}")"
        fi
    fi
    HASHED_DOKUWIKI_PASSWORD=$(echo -n "$DOKUWIKI_ADMIN_PASSWORD" | md5sum | awk -F ' ' '{print $1}')
    echo -n "$MY_USERNAME:$HASHED_DOKUWIKI_PASSWORD:$MY_NAME:$MY_EMAIL:admin,user,upload" > "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"
    cp "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/users.auth.php"
    chmod 640 "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/lib/plugins/acl/users.auth.php"

    if ! grep -q "video/ogg" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"; then
        echo 'ogv     video/ogg' >> "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"
    fi
    if ! grep -q "video/mp4" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"; then
        echo 'mp4     video/mp4' >> "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"
    fi
    if ! grep -q "video/webm" "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"; then
        echo 'webm    video/webm' >> "/var/www/$DOKUWIKI_DOMAIN_NAME/htdocs/conf/mime.conf"
    fi

    DOKUWIKI_ONION_HOSTNAME=$(add_onion_service dokuwiki 80 ${DOKUWIKI_ONION_PORT})
    set_completion_param "dokuwiki domain" "${DOKUWIKI_DOMAIN_NAME}"

    if [[ $ONION_ONLY == "no" ]]; then
        function_check nginx_http_redirect
        nginx_http_redirect "$DOKUWIKI_DOMAIN_NAME"
        { echo 'server {';
          echo '    listen 443 ssl;';
          echo '    #listen [::]:443 ssl;';
          echo "    root /var/www/$DOKUWIKI_DOMAIN_NAME/htdocs;";
          echo "    server_name $DOKUWIKI_DOMAIN_NAME;";
          echo '    access_log /dev/null;';
          echo "    error_log /dev/null;";
          echo '    index index.php;';
          echo '    charset utf-8;';
          echo '    proxy_read_timeout 86400s;'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
        function_check nginx_ssl
        nginx_ssl "$DOKUWIKI_DOMAIN_NAME"
        function_check nginx_disable_sniffing
        nginx_disable_sniffing "$DOKUWIKI_DOMAIN_NAME"
        { echo '    add_header Strict-Transport-Security "max-age=0;";';
          echo '';
          echo '    # rewrite to front controller as default rule';
          echo '    location / {'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
        function_check nginx_limits
        nginx_limits "$DOKUWIKI_DOMAIN_NAME"
        { echo "        rewrite ^/(.*) /index.php?q=\$uri&\$args last;";
          echo '    }';
          echo '';
          echo '    # statically serve these file types when possible';
          echo '    # otherwise fall back to front controller';
          echo '    # allow browser to cache them';
          echo '    # added .htm for advanced source code editor library';
          echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {';
          echo '        expires 30d;';
          echo "        try_files \$uri /index.php?q=\$uri&\$args;";
          echo '    }';
          echo '';
          echo '    # block these file types';
          echo '    location ~* \.(tpl|md|tgz|log|out)$ {';
          echo '        deny all;';
          echo '    }';
          echo '';
          echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000';
          echo '    # or a unix socket';
          echo '    location ~* \.php$ {'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
        function_check nginx_limits
        nginx_limits "$DOKUWIKI_DOMAIN_NAME"
        { echo '        # Zero-day exploit defense.';
          echo '        # http://forum.nginx.org/read.php?2,88845,page=3';
          echo "        # Won't work properly (404 error) if the file is not stored on this";
          echo "        # server, which is entirely possible with php-fpm/php-fcgi.";
          echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on";
          echo "        # another machine. And then cross your fingers that you won't get hacked.";
          echo "        try_files \$uri \$uri/ /index.php;";
          echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini';
          echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;';
          echo '        # With php-cgi alone:';
          echo '        # fastcgi_pass 127.0.0.1:9000;';
          echo '        # With php-fpm:';
          echo '        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;';
          echo '        fastcgi_read_timeout 30;';
          echo '        include fastcgi_params;';
          echo '        fastcgi_index index.php;';
          echo "        fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;";
          echo '    }';
          echo '';
          echo '    # deny access to all dot files';
          echo '    location ~ /\. {';
          echo '        deny all;';
          echo '    }';
          echo '';
          echo '    #deny access to store';
          echo '    location ~ /store {';
          echo '        deny all;';
          echo '    }';
          echo '    location ~ /(data|conf|bin|inc)/ {';
          echo '      deny all;';
          echo '    }';
          echo '    location ~ /\.ht {';
          echo '      deny  all;';
          echo '    }';
          echo '}';
          echo ''; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    else
        echo -n '' > "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    fi
    { echo 'server {';
      echo "    listen 127.0.0.1:${DOKUWIKI_ONION_PORT} default_server;";
      echo "    root /var/www/$DOKUWIKI_DOMAIN_NAME/htdocs;";
      echo "    server_name $DOKUWIKI_ONION_HOSTNAME;";
      echo '    access_log /dev/null;';
      echo "    error_log /dev/null;";
      echo '    index index.php;';
      echo '    charset utf-8;';
      echo '    proxy_read_timeout 86400s;'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    function_check nginx_disable_sniffing
    nginx_disable_sniffing "$DOKUWIKI_DOMAIN_NAME"
    { echo '    add_header Strict-Transport-Security "max-age=0;";';
      echo '';
      echo '    # rewrite to front controller as default rule';
      echo '    location / {'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    function_check nginx_limits
    nginx_limits "$DOKUWIKI_DOMAIN_NAME"
    { echo "        rewrite ^/(.*) /index.php?q=\$uri&\$args last;";
      echo '    }';
      echo '';
      echo '    # statically serve these file types when possible';
      echo '    # otherwise fall back to front controller';
      echo '    # allow browser to cache them';
      echo '    # added .htm for advanced source code editor library';
      echo '    location ~* \.(jpg|jpeg|gif|png|ico|css|js|htm|html|ttf|woff|svg)$ {';
      echo '        expires 30d;';
      echo "        try_files \$uri /index.php?q=\$uri&\$args;";
      echo '    }';
      echo '';
      echo '    # block these file types';
      echo '    location ~* \.(tpl|md|tgz|log|out)$ {';
      echo '        deny all;';
      echo '    }';
      echo '';
      echo '    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000';
      echo '    # or a unix socket';
      echo '    location ~* \.php$ {'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"
    function_check nginx_limits
    nginx_limits "$DOKUWIKI_DOMAIN_NAME"
    { echo '        # Zero-day exploit defense.';
      echo '        # http://forum.nginx.org/read.php?2,88845,page=3';
      echo "        # Won't work properly (404 error) if the file is not stored on this";
      echo "        # server, which is entirely possible with php-fpm/php-fcgi.";
      echo "        # Comment the 'try_files' line out if you set up php-fpm/php-fcgi on";
      echo "        # another machine. And then cross your fingers that you won't get hacked.";
      echo "        try_files \$uri \$uri/ /index.php;";
      echo '        # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini';
      echo '        fastcgi_split_path_info ^(.+\.php)(/.+)$;';
      echo '        # With php-cgi alone:';
      echo '        # fastcgi_pass 127.0.0.1:9000;';
      echo '        # With php-fpm:';
      echo '        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;';
      echo '        fastcgi_read_timeout 30;';
      echo '        include fastcgi_params;';
      echo '        fastcgi_index index.php;';
      echo "        fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;";
      echo '    }';
      echo '';
      echo '    # deny access to all dot files';
      echo '    location ~ /\. {';
      echo '        deny all;';
      echo '    }';
      echo '';
      echo '    #deny access to store';
      echo '    location ~ /store {';
      echo '        deny all;';
      echo '    }';
      echo '    location ~ /(data|conf|bin|inc)/ {';
      echo '      deny all;';
      echo '    }';
      echo '    location ~ /\.ht {';
      echo '      deny  all;';
      echo '    }';
      echo '}'; } >> "/etc/nginx/sites-available/$DOKUWIKI_DOMAIN_NAME"

    function_check create_site_certificate
    create_site_certificate "$DOKUWIKI_DOMAIN_NAME" 'yes'

    function_check configure_php
    configure_php

    nginx_ensite "$DOKUWIKI_DOMAIN_NAME"

    systemctl restart php7.0-fpm
    systemctl restart nginx

    function_check add_ddns_domain
    add_ddns_domain "$DOKUWIKI_DOMAIN_NAME"

    "${PROJECT_NAME}-pass" -u "$MY_USERNAME" -a dokuwiki -p "$DOKUWIKI_ADMIN_PASSWORD"

    APP_INSTALLED=1
}

# NOTE: deliberately no exit 0