1{ config, lib, pkgs, serverInfo, php, ... }:
2# http://codex.wordpress.org/Hardening_WordPress
3
4with lib;
5
6let
7
8 version = "4.2";
9 fullversion = "${version}.2";
10
11 # Our bare-bones wp-config.php file using the above settings
12 wordpressConfig = pkgs.writeText "wp-config.php" ''
13 <?php
14 define('DB_NAME', '${config.dbName}');
15 define('DB_USER', '${config.dbUser}');
16 define('DB_PASSWORD', '${config.dbPassword}');
17 define('DB_HOST', '${config.dbHost}');
18 define('DB_CHARSET', 'utf8');
19 $table_prefix = '${config.tablePrefix}';
20 if ( !defined('ABSPATH') )
21 define('ABSPATH', dirname(__FILE__) . '/');
22 require_once(ABSPATH . 'wp-settings.php');
23 ${config.extraConfig}
24 '';
25
26 # .htaccess to support pretty URLs
27 htaccess = pkgs.writeText "htaccess" ''
28 <IfModule mod_rewrite.c>
29 RewriteEngine On
30 RewriteBase /
31 RewriteRule ^index\.php$ - [L]
32
33 # add a trailing slash to /wp-admin
34 RewriteRule ^wp-admin$ wp-admin/ [R=301,L]
35
36 RewriteCond %{REQUEST_FILENAME} -f [OR]
37 RewriteCond %{REQUEST_FILENAME} -d
38 RewriteRule ^ - [L]
39 RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
40 RewriteRule ^(.*\.php)$ $1 [L]
41 RewriteRule . index.php [L]
42 </IfModule>
43 '';
44
45 # WP translation can be found here:
46 # https://github.com/nixcloud/wordpress-translations
47 supportedLanguages = {
48 en_GB = { revision="d6c005372a5318fd758b710b77a800c86518be13"; sha256="0qbbsi87k47q4rgczxx541xz4z4f4fr49hw4lnaxkdsf5maz8p9p"; };
49 de_DE = { revision="3c62955c27baaae98fd99feb35593d46562f4736"; sha256="1shndgd11dk836dakrjlg2arwv08vqx6j4xjh4jshvwmjab6ng6p"; };
50 zh_ZN = { revision="12b9f811e8cae4b6ee41de343d35deb0a8fdda6d"; sha256="1339ggsxh0g6lab37jmfxicsax4h702rc3fsvv5azs7mcznvwh47"; };
51 fr_FR = { revision="688c8b1543e3d38d9e8f57e0a6f2a2c3c8b588bd"; sha256="1j41iak0i6k7a4wzyav0yrllkdjjskvs45w53db8vfm8phq1n014"; };
52 };
53
54 downloadLanguagePack = language: revision: sha256s:
55 pkgs.stdenv.mkDerivation rec {
56 name = "wp_${language}";
57 src = pkgs.fetchFromGitHub {
58 owner = "nixcloud";
59 repo = "wordpress-translations";
60 rev = revision;
61 sha256 = sha256s;
62 };
63 installPhase = "mkdir -p $out; cp -R * $out/";
64 };
65
66 selectedLanguages = map (lang: downloadLanguagePack lang supportedLanguages.${lang}.revision supportedLanguages.${lang}.sha256) (config.languages);
67
68 # The wordpress package itself
69 wordpressRoot = pkgs.stdenv.mkDerivation rec {
70 name = "wordpress";
71 src = pkgs.fetchFromGitHub {
72 owner = "WordPress";
73 repo = "WordPress";
74 rev = "${fullversion}";
75 sha256 = "0gq1j9b0d0rykql3jzdb2yn4adj0rrcsvqrmj3dzx11ir57ilsgc";
76 };
77 installPhase = ''
78 mkdir -p $out
79 # copy all the wordpress files we downloaded
80 cp -R * $out/
81
82 # symlink the wordpress config
83 ln -s ${wordpressConfig} $out/wp-config.php
84 # symlink custom .htaccess
85 ln -s ${htaccess} $out/.htaccess
86 # symlink uploads directory
87 ln -s ${config.wordpressUploads} $out/wp-content/uploads
88
89 # remove bundled plugins(s) coming with wordpress
90 rm -Rf $out/wp-content/plugins/*
91 # remove bundled themes(s) coming with wordpress
92 rm -Rf $out/wp-content/themes/*
93
94 # symlink additional theme(s)
95 ${concatMapStrings (theme: "ln -s ${theme} $out/wp-content/themes/${theme.name}\n") config.themes}
96 # symlink additional plugin(s)
97 ${concatMapStrings (plugin: "ln -s ${plugin} $out/wp-content/plugins/${plugin.name}\n") (config.plugins) }
98
99 # symlink additional translation(s)
100 mkdir -p $out/wp-content/languages
101 ${concatMapStrings (language: "ln -s ${language}/*.mo ${language}/*.po $out/wp-content/languages/\n") (selectedLanguages) }
102 '';
103 };
104
105in
106
107{
108
109 # And some httpd extraConfig to make things work nicely
110 extraConfig = ''
111 <Directory ${wordpressRoot}>
112 DirectoryIndex index.php
113 Allow from *
114 Options FollowSymLinks
115 AllowOverride All
116 </Directory>
117 '';
118
119 enablePHP = true;
120
121 options = {
122 dbHost = mkOption {
123 default = "localhost";
124 description = "The location of the database server.";
125 example = "localhost";
126 };
127 dbName = mkOption {
128 default = "wordpress";
129 description = "Name of the database that holds the Wordpress data.";
130 example = "localhost";
131 };
132 dbUser = mkOption {
133 default = "wordpress";
134 description = "The dbUser, read: the username, for the database.";
135 example = "wordpress";
136 };
137 dbPassword = mkOption {
138 default = "wordpress";
139 description = "The mysql password to the respective dbUser.";
140 example = "wordpress";
141 };
142 tablePrefix = mkOption {
143 default = "wp_";
144 description = ''
145 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'/>.
146 '';
147 };
148 wordpressUploads = mkOption {
149 default = "/data/uploads";
150 description = ''
151 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.
152 '';
153 };
154 plugins = mkOption {
155 default = [];
156 type = types.listOf types.path;
157 description =
158 ''
159 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.
160 '';
161 example = ''
162 # Wordpress plugin 'akismet' installation example
163 akismetPlugin = pkgs.stdenv.mkDerivation {
164 name = "akismet-plugin";
165 # Download the theme from the wordpress site
166 src = pkgs.fetchurl {
167 url = https://downloads.wordpress.org/plugin/akismet.3.1.zip;
168 sha256 = "1i4k7qyzna08822ncaz5l00wwxkwcdg4j9h3z2g0ay23q640pclg";
169 };
170 # We need unzip to build this package
171 buildInputs = [ pkgs.unzip ];
172 # Installing simply means copying all files to the output directory
173 installPhase = "mkdir -p $out; cp -R * $out/";
174 };
175
176 And then pass this theme to the themes list like this:
177 plugins = [ akismetPlugin ];
178 '';
179 };
180 themes = mkOption {
181 default = [];
182 type = types.listOf types.path;
183 description =
184 ''
185 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.
186 '';
187 example = ''
188 # For shits and giggles, let's package the responsive theme
189 responsiveTheme = pkgs.stdenv.mkDerivation {
190 name = "responsive-theme";
191 # Download the theme from the wordpress site
192 src = pkgs.fetchurl {
193 url = http://wordpress.org/themes/download/responsive.1.9.7.6.zip;
194 sha256 = "06i26xlc5kdnx903b1gfvnysx49fb4kh4pixn89qii3a30fgd8r8";
195 };
196 # We need unzip to build this package
197 buildInputs = [ pkgs.unzip ];
198 # Installing simply means copying all files to the output directory
199 installPhase = "mkdir -p $out; cp -R * $out/";
200 };
201
202 And then pass this theme to the themes list like this:
203 themes = [ responsiveTheme ];
204 '';
205 };
206 languages = mkOption {
207 default = [];
208 description = "Installs wordpress language packs based on the list, see wordpress.nix for possible translations.";
209 example = "[ \"en_GB\" \"de_DE\" ];";
210 };
211 extraConfig = mkOption {
212 default = "";
213 example =
214 ''
215 define( 'AUTOSAVE_INTERVAL', 60 ); // Seconds
216 '';
217 description = ''
218 Any additional text to be appended to Wordpress's wp-config.php
219 configuration file. This is a PHP script. For configuration
220 settings, see <link xlink:href='http://codex.wordpress.org/Editing_wp-config.php'/>.
221 '';
222 };
223 };
224
225 documentRoot = wordpressRoot;
226
227 # FIXME adding the user has to be done manually for the time being
228 startupScript = pkgs.writeScript "init-wordpress.sh" ''
229 #!/bin/sh
230 mkdir -p ${config.wordpressUploads}
231 chown ${serverInfo.serverConfig.user} ${config.wordpressUploads}
232
233 # we should use systemd dependencies here
234 #waitForUnit("network-interfaces.target");
235 if [ ! -d ${serverInfo.fullConfig.services.mysql.dataDir}/${config.dbName} ]; then
236 echo "Need to create the database '${config.dbName}' and grant permissions to user named '${config.dbUser}'."
237 # Wait until MySQL is up
238 while [ ! -e /var/run/mysql/mysqld.pid ]; do
239 sleep 1
240 done
241 ${pkgs.mysql}/bin/mysql -e 'CREATE DATABASE ${config.dbName};'
242 ${pkgs.mysql}/bin/mysql -e 'GRANT ALL ON ${config.dbName}.* TO ${config.dbUser}@localhost IDENTIFIED BY "${config.dbPassword}";'
243 else
244 echo "Good, no need to do anything database related."
245 fi
246 '';
247}