284 lines
10 KiB
Nix
284 lines
10 KiB
Nix
{ config, lib, pkgs, serverInfo, php, ... }:
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# http://codex.wordpress.org/Hardening_WordPress
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with lib;
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let
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# Our bare-bones wp-config.php file using the above settings
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wordpressConfig = pkgs.writeText "wp-config.php" ''
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<?php
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define('DB_NAME', '${config.dbName}');
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define('DB_USER', '${config.dbUser}');
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define('DB_PASSWORD', file_get_contents('${config.dbPasswordFile}'));
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define('DB_HOST', '${config.dbHost}');
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define('DB_CHARSET', 'utf8');
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$table_prefix = '${config.tablePrefix}';
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${config.extraConfig}
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if ( !defined('ABSPATH') )
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define('ABSPATH', dirname(__FILE__) . '/');
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require_once(ABSPATH . 'wp-settings.php');
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'';
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# .htaccess to support pretty URLs
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htaccess = pkgs.writeText "htaccess" ''
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<IfModule mod_rewrite.c>
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RewriteEngine On
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RewriteBase /
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RewriteRule ^index\.php$ - [L]
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# add a trailing slash to /wp-admin
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RewriteRule ^wp-admin$ wp-admin/ [R=301,L]
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RewriteCond %{REQUEST_FILENAME} -f [OR]
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RewriteCond %{REQUEST_FILENAME} -d
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RewriteRule ^ - [L]
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RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
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RewriteRule ^(.*\.php)$ $1 [L]
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RewriteRule . index.php [L]
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</IfModule>
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${config.extraHtaccess}
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'';
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# WP translation can be found here:
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# https://github.com/nixcloud/wordpress-translations
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supportedLanguages = {
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en_GB = { revision="d6c005372a5318fd758b710b77a800c86518be13"; sha256="0qbbsi87k47q4rgczxx541xz4z4f4fr49hw4lnaxkdsf5maz8p9p"; };
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de_DE = { revision="3c62955c27baaae98fd99feb35593d46562f4736"; sha256="1shndgd11dk836dakrjlg2arwv08vqx6j4xjh4jshvwmjab6ng6p"; };
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zh_ZN = { revision="12b9f811e8cae4b6ee41de343d35deb0a8fdda6d"; sha256="1339ggsxh0g6lab37jmfxicsax4h702rc3fsvv5azs7mcznvwh47"; };
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fr_FR = { revision="688c8b1543e3d38d9e8f57e0a6f2a2c3c8b588bd"; sha256="1j41iak0i6k7a4wzyav0yrllkdjjskvs45w53db8vfm8phq1n014"; };
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};
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downloadLanguagePack = language: revision: sha256s:
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pkgs.stdenv.mkDerivation rec {
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name = "wp_${language}";
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src = pkgs.fetchFromGitHub {
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owner = "nixcloud";
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repo = "wordpress-translations";
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rev = revision;
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sha256 = sha256s;
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};
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installPhase = "mkdir -p $out; cp -R * $out/";
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};
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selectedLanguages = map (lang: downloadLanguagePack lang supportedLanguages.${lang}.revision supportedLanguages.${lang}.sha256) (config.languages);
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# The wordpress package itself
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wordpressRoot = pkgs.stdenv.mkDerivation rec {
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name = "wordpress";
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src = config.package;
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installPhase = ''
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mkdir -p $out
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# copy all the wordpress files we downloaded
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cp -R * $out/
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# symlink the wordpress config
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ln -s ${wordpressConfig} $out/wp-config.php
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# symlink custom .htaccess
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ln -s ${htaccess} $out/.htaccess
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# symlink uploads directory
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ln -s ${config.wordpressUploads} $out/wp-content/uploads
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# remove bundled plugins(s) coming with wordpress
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rm -Rf $out/wp-content/plugins/*
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# remove bundled themes(s) coming with wordpress
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rm -Rf $out/wp-content/themes/*
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# symlink additional theme(s)
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${concatMapStrings (theme: "ln -s ${theme} $out/wp-content/themes/${theme.name}\n") config.themes}
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# symlink additional plugin(s)
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${concatMapStrings (plugin: "ln -s ${plugin} $out/wp-content/plugins/${plugin.name}\n") (config.plugins) }
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# symlink additional translation(s)
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mkdir -p $out/wp-content/languages
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${concatMapStrings (language: "ln -s ${language}/*.mo ${language}/*.po $out/wp-content/languages/\n") (selectedLanguages) }
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'';
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};
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in
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{
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# And some httpd extraConfig to make things work nicely
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extraConfig = ''
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<Directory ${wordpressRoot}>
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DirectoryIndex index.php
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Allow from *
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Options FollowSymLinks
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AllowOverride All
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</Directory>
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'';
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enablePHP = true;
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options = {
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package = mkOption {
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type = types.path;
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default = pkgs.wordpress;
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description = ''
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Path to the wordpress sources.
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Upgrading? We have a test! nix-build ./nixos/tests/wordpress.nix
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'';
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};
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dbHost = mkOption {
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default = "localhost";
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description = "The location of the database server.";
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example = "localhost";
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};
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dbName = mkOption {
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default = "wordpress";
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description = "Name of the database that holds the Wordpress data.";
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example = "localhost";
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};
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dbUser = mkOption {
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default = "wordpress";
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description = "The dbUser, read: the username, for the database.";
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example = "wordpress";
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};
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dbPassword = mkOption {
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default = "wordpress";
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description = ''
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The mysql password to the respective dbUser.
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Warning: this password is stored in the world-readable Nix store. It's
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recommended to use the $dbPasswordFile option since that gives you control over
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the security of the password. $dbPasswordFile also takes precedence over $dbPassword.
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'';
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example = "wordpress";
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};
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dbPasswordFile = mkOption {
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type = types.str;
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default = toString (pkgs.writeTextFile {
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name = "wordpress-dbpassword";
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text = config.dbPassword;
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});
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example = "/run/keys/wordpress-dbpassword";
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description = ''
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Path to a file that contains the mysql password to the respective dbUser.
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The file should be readable by the user: config.services.httpd.user.
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$dbPasswordFile takes precedence over the $dbPassword option.
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This defaults to a file in the world-readable Nix store that contains the value
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of the $dbPassword option. It's recommended to override this with a path not in
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the Nix store. Tip: use nixops key management:
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<link xlink:href='https://nixos.org/nixops/manual/#idm140737318306400'/>
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'';
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};
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tablePrefix = mkOption {
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default = "wp_";
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description = ''
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The $table_prefix is the value placed in the front of your database tables. Change the value if you want to use something other than wp_ for your database prefix. Typically this is changed if you are installing multiple WordPress blogs in the same database. See <link xlink:href='http://codex.wordpress.org/Editing_wp-config.php#table_prefix'/>.
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'';
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};
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wordpressUploads = mkOption {
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default = "/data/uploads";
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description = ''
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This directory is used for uploads of pictures and must be accessible (read: owned) by the httpd running user. The directory passed here is automatically created and permissions are given to the httpd running user.
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'';
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};
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plugins = mkOption {
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default = [];
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type = types.listOf types.path;
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description =
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''
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List of path(s) to respective plugin(s) which are symlinked from the 'plugins' directory. Note: These plugins need to be packaged before use, see example.
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'';
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example = ''
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# Wordpress plugin 'akismet' installation example
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akismetPlugin = pkgs.stdenv.mkDerivation {
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name = "akismet-plugin";
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# Download the theme from the wordpress site
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src = pkgs.fetchurl {
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url = https://downloads.wordpress.org/plugin/akismet.3.1.zip;
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sha256 = "1i4k7qyzna08822ncaz5l00wwxkwcdg4j9h3z2g0ay23q640pclg";
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};
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# We need unzip to build this package
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buildInputs = [ pkgs.unzip ];
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# Installing simply means copying all files to the output directory
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installPhase = "mkdir -p $out; cp -R * $out/";
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};
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And then pass this theme to the themes list like this:
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plugins = [ akismetPlugin ];
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'';
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};
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themes = mkOption {
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default = [];
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type = types.listOf types.path;
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description =
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''
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List of path(s) to respective theme(s) which are symlinked from the 'theme' directory. Note: These themes need to be packaged before use, see example.
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'';
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example = ''
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# For shits and giggles, let's package the responsive theme
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responsiveTheme = pkgs.stdenv.mkDerivation {
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name = "responsive-theme";
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# Download the theme from the wordpress site
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src = pkgs.fetchurl {
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url = http://wordpress.org/themes/download/responsive.1.9.7.6.zip;
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sha256 = "06i26xlc5kdnx903b1gfvnysx49fb4kh4pixn89qii3a30fgd8r8";
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};
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# We need unzip to build this package
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buildInputs = [ pkgs.unzip ];
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# Installing simply means copying all files to the output directory
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installPhase = "mkdir -p $out; cp -R * $out/";
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};
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And then pass this theme to the themes list like this:
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themes = [ responsiveTheme ];
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'';
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};
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languages = mkOption {
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default = [];
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description = "Installs wordpress language packs based on the list, see wordpress.nix for possible translations.";
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example = "[ \"en_GB\" \"de_DE\" ];";
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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example =
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''
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define( 'AUTOSAVE_INTERVAL', 60 ); // Seconds
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'';
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description = ''
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Any additional text to be appended to Wordpress's wp-config.php
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configuration file. This is a PHP script. For configuration
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settings, see <link xlink:href='http://codex.wordpress.org/Editing_wp-config.php'/>.
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'';
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};
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extraHtaccess = mkOption {
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default = "";
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example =
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''
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php_value upload_max_filesize 20M
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php_value post_max_size 20M
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'';
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description = ''
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Any additional text to be appended to Wordpress's .htaccess file.
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'';
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};
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};
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documentRoot = wordpressRoot;
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# FIXME adding the user has to be done manually for the time being
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startupScript = pkgs.writeScript "init-wordpress.sh" ''
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#!/bin/sh
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mkdir -p ${config.wordpressUploads}
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chown ${serverInfo.serverConfig.user} ${config.wordpressUploads}
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# we should use systemd dependencies here
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if [ ! -d ${serverInfo.fullConfig.services.mysql.dataDir}/${config.dbName} ]; then
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echo "Need to create the database '${config.dbName}' and grant permissions to user named '${config.dbUser}'."
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# Wait until MySQL is up
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while [ ! -e ${serverInfo.fullConfig.services.mysql.pidDir}/mysqld.pid ]; do
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sleep 1
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done
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${pkgs.mysql}/bin/mysql -e 'CREATE DATABASE ${config.dbName};'
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${pkgs.mysql}/bin/mysql -e "GRANT ALL ON ${config.dbName}.* TO ${config.dbUser}@localhost IDENTIFIED BY \"$(cat ${config.dbPasswordFile})\";"
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else
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echo "Good, no need to do anything database related."
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fi
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'';
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}
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