includes/installer/LocalSettingsGenerator.php

   1 <?php
   2 /**
   3  * Generator for LocalSettings.php file.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Deployment
  22  */
  23
  24 /**
  25  * Class for generating LocalSettings.php file.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30 class LocalSettingsGenerator {
  31
  32         protected $extensions = array();
  33         protected $values = array();
  34         protected $groupPermissions = array();
  35         protected $dbSettings = '';
  36         protected $IP;
  37
  38         /**
  39          * @var Installer
  40          */
  41         protected $installer;
  42
  43         /**
  44          * Constructor.
  45          *
  46          * @param Installer $installer
  47          */
  48         public function __construct( Installer $installer ) {
  49                 $this->installer = $installer;
  50
  51                 $this->extensions = $installer->getVar( '_Extensions' );
  52                 $this->skins = $installer->getVar( '_Skins' );
  53                 $this->IP = $installer->getVar( 'IP' );
  54
  55                 $db = $installer->getDBInstaller( $installer->getVar( 'wgDBtype' ) );
  56
  57                 $confItems = array_merge(
  58                         array(
  59                                 'wgServer', 'wgScriptPath',
  60                                 'wgPasswordSender', 'wgImageMagickConvertCommand', 'wgShellLocale',
  61                                 'wgLanguageCode', 'wgEnableEmail', 'wgEnableUserEmail', 'wgDiff3',
  62                                 'wgEnotifUserTalk', 'wgEnotifWatchlist', 'wgEmailAuthentication',
  63                                 'wgDBtype', 'wgSecretKey', 'wgRightsUrl', 'wgSitename', 'wgRightsIcon',
  64                                 'wgRightsText', '_MainCacheType', 'wgEnableUploads',
  65                                 '_MemCachedServers', 'wgDBserver', 'wgDBuser',
  66                                 'wgDBpassword', 'wgUseInstantCommons', 'wgUpgradeKey', 'wgDefaultSkin',
  67                                 'wgMetaNamespace', 'wgLogo', 'wgAuthenticationTokenVersion',
  68                         ),
  69                         $db->getGlobalNames()
  70                 );
  71
  72                 $unescaped = array( 'wgRightsIcon', 'wgLogo' );
  73                 $boolItems = array(
  74                         'wgEnableEmail', 'wgEnableUserEmail', 'wgEnotifUserTalk',
  75                         'wgEnotifWatchlist', 'wgEmailAuthentication', 'wgEnableUploads', 'wgUseInstantCommons'
  76                 );
  77
  78                 foreach ( $confItems as $c ) {
  79                         $val = $installer->getVar( $c );
  80
  81                         if ( in_array( $c, $boolItems ) ) {
  82                                 $val = wfBoolToStr( $val );
  83                         }
  84
  85                         if ( !in_array( $c, $unescaped ) && $val !== null ) {
  86                                 $val = self::escapePhpString( $val );
  87                         }
  88
  89                         $this->values[$c] = $val;
  90                 }
  91
  92                 $this->dbSettings = $db->getLocalSettings();
  93                 $this->values['wgEmergencyContact'] = $this->values['wgPasswordSender'];
  94         }
  95
  96         /**
  97          * For $wgGroupPermissions, set a given ['group']['permission'] value.
  98          * @param string $group Group name
  99          * @param array $rightsArr An array of permissions, in the form of:
 100          *   array( 'right' => true, 'right2' => false )
 101          */
 102         public function setGroupRights( $group, $rightsArr ) {
 103                 $this->groupPermissions[$group] = $rightsArr;
 104         }
 105
 106         /**
 107          * Returns the escaped version of a string of php code.
 108          *
 109          * @param string $string
 110          *
 111          * @return string
 112          */
 113         public static function escapePhpString( $string ) {
 114                 if ( is_array( $string ) || is_object( $string ) ) {
 115                         return false;
 116                 }
 117
 118                 return strtr(
 119                         $string,
 120                         array(
 121                                 "\n" => "\\n",
 122                                 "\r" => "\\r",
 123                                 "\t" => "\\t",
 124                                 "\\" => "\\\\",
 125                                 "\$" => "\\\$",
 126                                 "\"" => "\\\""
 127                         )
 128                 );
 129         }
 130
 131         /**
 132          * Return the full text of the generated LocalSettings.php file,
 133          * including the extensions and skins.
 134          *
 135          * @return string
 136          */
 137         public function getText() {
 138                 $localSettings = $this->getDefaultText();
 139
 140                 if ( count( $this->skins ) ) {
 141                         $localSettings .= "
 142 # Enabled skins.
 143 # The following skins were automatically enabled:\n";
 144
 145                         foreach ( $this->skins as $skinName ) {
 146                                 $localSettings .= $this->generateExtEnableLine( 'skins', $skinName );
 147                         }
 148
 149                         $localSettings .= "\n";
 150                 }
 151
 152                 if ( count( $this->extensions ) ) {
 153                         $localSettings .= "
 154 # Enabled extensions. Most of the extensions are enabled by adding
 155 # wfLoadExtensions('ExtensionName');
 156 # to LocalSettings.php. Check specific extension documentation for more details.
 157 # The following extensions were automatically enabled:\n";
 158
 159                         foreach ( $this->extensions as $extName ) {
 160                                 $localSettings .= $this->generateExtEnableLine( 'extensions', $extName );
 161                         }
 162
 163                         $localSettings .= "\n";
 164                 }
 165
 166                 $localSettings .= "
 167 # End of automatically generated settings.
 168 # Add more configuration options below.\n\n";
 169
 170                 return $localSettings;
 171         }
 172
 173         /**
 174          * Generate the appropriate line to enable the given extension or skin
 175          *
 176          * @param string $dir Either "extensions" or "skins"
 177          * @param string $name Name of extension/skin
 178          * @throws InvalidArgumentException
 179          * @return string
 180          */
 181         private function generateExtEnableLine( $dir, $name ) {
 182                 if ( $dir === 'extensions' ) {
 183                         $jsonFile = 'extension.json';
 184                         $function = 'wfLoadExtension';
 185                 } elseif ( $dir === 'skins' ) {
 186                         $jsonFile = 'skin.json';
 187                         $function = 'wfLoadSkin';
 188                 } else {
 189                         throw new InvalidArgumentException( '$dir was not "extensions" or "skins' );
 190                 }
 191
 192                 $encName = self::escapePhpString( $name );
 193
 194                 if ( file_exists( "{$this->IP}/$dir/$encName/$jsonFile" ) ) {
 195                         return "$function( '$encName' );\n";
 196                 } else {
 197                         return "require_once \"\$IP/$dir/$encName/$encName.php\";\n";
 198                 }
 199         }
 200
 201         /**
 202          * Write the generated LocalSettings to a file
 203          *
 204          * @param string $fileName Full path to filename to write to
 205          */
 206         public function writeFile( $fileName ) {
 207                 file_put_contents( $fileName, $this->getText() );
 208         }
 209
 210         /**
 211          * @return string
 212          */
 213         protected function buildMemcachedServerList() {
 214                 $servers = $this->values['_MemCachedServers'];
 215
 216                 if ( !$servers ) {
 217                         return 'array()';
 218                 } else {
 219                         $ret = 'array( ';
 220                         $servers = explode( ',', $servers );
 221
 222                         foreach ( $servers as $srv ) {
 223                                 $srv = trim( $srv );
 224                                 $ret .= "'$srv', ";
 225                         }
 226
 227                         return rtrim( $ret, ', ' ) . ' )';
 228                 }
 229         }
 230
 231         /**
 232          * @return string
 233          */
 234         protected function getDefaultText() {
 235                 if ( !$this->values['wgImageMagickConvertCommand'] ) {
 236                         $this->values['wgImageMagickConvertCommand'] = '/usr/bin/convert';
 237                         $magic = '#';
 238                 } else {
 239                         $magic = '';
 240                 }
 241
 242                 if ( !$this->values['wgShellLocale'] ) {
 243                         $this->values['wgShellLocale'] = 'en_US.UTF-8';
 244                         $locale = '#';
 245                 } else {
 246                         $locale = '';
 247                 }
 248
 249                 $metaNamespace = '';
 250                 if ( $this->values['wgMetaNamespace'] !== $this->values['wgSitename'] ) {
 251                         $metaNamespace = "\$wgMetaNamespace = \"{$this->values['wgMetaNamespace']}\";\n";
 252                 }
 253
 254                 $groupRights = '';
 255                 $noFollow = '';
 256                 if ( $this->groupPermissions ) {
 257                         $groupRights .= "# The following permissions were set based on your choice in the installer\n";
 258                         foreach ( $this->groupPermissions as $group => $rightArr ) {
 259                                 $group = self::escapePhpString( $group );
 260                                 foreach ( $rightArr as $right => $perm ) {
 261                                         $right = self::escapePhpString( $right );
 262                                         $groupRights .= "\$wgGroupPermissions['$group']['$right'] = " .
 263                                                 wfBoolToStr( $perm ) . ";\n";
 264                                 }
 265                         }
 266                         $groupRights .= "\n";
 267
 268                         if ( ( isset( $this->groupPermissions['*']['edit'] ) &&
 269                                         $this->groupPermissions['*']['edit'] === false )
 270                                 && ( isset( $this->groupPermissions['*']['createaccount'] ) &&
 271                                         $this->groupPermissions['*']['createaccount'] === false )
 272                                 && ( isset( $this->groupPermissions['*']['read'] ) &&
 273                                         $this->groupPermissions['*']['read'] !== false )
 274                         ) {
 275                                 $noFollow = "# Set \$wgNoFollowLinks to true if you open up your wiki to editing by\n"
 276                                         . "# the general public and wish to apply nofollow to external links as a\n"
 277                                         . "# deterrent to spammers. Nofollow is not a comprehensive anti-spam solution\n"
 278                                         . "# and open wikis will generally require other anti-spam measures; for more\n"
 279                                         . "# information, see https://www.mediawiki.org/wiki/Manual:Combating_spam\n"
 280                                         . "\$wgNoFollowLinks = false;\n\n";
 281                         }
 282                 }
 283
 284                 $serverSetting = "";
 285                 if ( array_key_exists( 'wgServer', $this->values ) && $this->values['wgServer'] !== null ) {
 286                         $serverSetting = "\n## The protocol and server name to use in fully-qualified URLs\n";
 287                         $serverSetting .= "\$wgServer = \"{$this->values['wgServer']}\";";
 288                 }
 289
 290                 switch ( $this->values['_MainCacheType'] ) {
 291                         case 'anything':
 292                         case 'db':
 293                         case 'memcached':
 294                         case 'accel':
 295                                 $cacheType = 'CACHE_' . strtoupper( $this->values['_MainCacheType'] );
 296                                 break;
 297                         case 'none':
 298                         default:
 299                                 $cacheType = 'CACHE_NONE';
 300                 }
 301
 302                 $mcservers = $this->buildMemcachedServerList();
 303
 304                 return "<?php
 305 # This file was automatically generated by the MediaWiki {$GLOBALS['wgVersion']}
 306 # installer. If you make manual changes, please keep track in case you
 307 # need to recreate them later.
 308 #
 309 # See includes/DefaultSettings.php for all configurable settings
 310 # and their default values, but don't forget to make changes in _this_
 311 # file, not there.
 312 #
 313 # Further documentation for configuration settings may be found at:
 314 # https://www.mediawiki.org/wiki/Manual:Configuration_settings
 315
 316 # Protect against web entry
 317 if ( !defined( 'MEDIAWIKI' ) ) {
 318         exit;
 319 }
 320
 321 ## Uncomment this to disable output compression
 322 # \$wgDisableOutputCompression = true;
 323
 324 \$wgSitename = \"{$this->values['wgSitename']}\";
 325 {$metaNamespace}
 326 ## The URL base path to the directory containing the wiki;
 327 ## defaults for all runtime URL paths are based off of this.
 328 ## For more information on customizing the URLs
 329 ## (like /w/index.php/Page_title to /wiki/Page_title) please see:
 330 ## https://www.mediawiki.org/wiki/Manual:Short_URL
 331 \$wgScriptPath = \"{$this->values['wgScriptPath']}\";
 332 ${serverSetting}
 333
 334 ## The URL path to static resources (images, scripts, etc.)
 335 \$wgResourceBasePath = \$wgScriptPath;
 336
 337 ## The URL path to the logo.  Make sure you change this from the default,
 338 ## or else you'll overwrite your logo when you upgrade!
 339 \$wgLogo = \"{$this->values['wgLogo']}\";
 340
 341 ## UPO means: this is also a user preference option
 342
 343 \$wgEnableEmail = {$this->values['wgEnableEmail']};
 344 \$wgEnableUserEmail = {$this->values['wgEnableUserEmail']}; # UPO
 345
 346 \$wgEmergencyContact = \"{$this->values['wgEmergencyContact']}\";
 347 \$wgPasswordSender = \"{$this->values['wgPasswordSender']}\";
 348
 349 \$wgEnotifUserTalk = {$this->values['wgEnotifUserTalk']}; # UPO
 350 \$wgEnotifWatchlist = {$this->values['wgEnotifWatchlist']}; # UPO
 351 \$wgEmailAuthentication = {$this->values['wgEmailAuthentication']};
 352
 353 ## Database settings
 354 \$wgDBtype = \"{$this->values['wgDBtype']}\";
 355 \$wgDBserver = \"{$this->values['wgDBserver']}\";
 356 \$wgDBname = \"{$this->values['wgDBname']}\";
 357 \$wgDBuser = \"{$this->values['wgDBuser']}\";
 358 \$wgDBpassword = \"{$this->values['wgDBpassword']}\";
 359
 360 {$this->dbSettings}
 361
 362 ## Shared memory settings
 363 \$wgMainCacheType = $cacheType;
 364 \$wgMemCachedServers = $mcservers;
 365
 366 ## To enable image uploads, make sure the 'images' directory
 367 ## is writable, then set this to true:
 368 \$wgEnableUploads = {$this->values['wgEnableUploads']};
 369 {$magic}\$wgUseImageMagick = true;
 370 {$magic}\$wgImageMagickConvertCommand = \"{$this->values['wgImageMagickConvertCommand']}\";
 371
 372 # InstantCommons allows wiki to use images from https://commons.wikimedia.org
 373 \$wgUseInstantCommons = {$this->values['wgUseInstantCommons']};
 374
 375 ## If you use ImageMagick (or any other shell command) on a
 376 ## Linux server, this will need to be set to the name of an
 377 ## available UTF-8 locale
 378 {$locale}\$wgShellLocale = \"{$this->values['wgShellLocale']}\";
 379
 380 ## Set \$wgCacheDirectory to a writable directory on the web server
 381 ## to make your wiki go slightly faster. The directory should not
 382 ## be publically accessible from the web.
 383 #\$wgCacheDirectory = \"\$IP/cache\";
 384
 385 # Site language code, should be one of the list in ./languages/data/Names.php
 386 \$wgLanguageCode = \"{$this->values['wgLanguageCode']}\";
 387
 388 \$wgSecretKey = \"{$this->values['wgSecretKey']}\";
 389
 390 # Changing this will log out all existing sessions.
 391 \$wgAuthenticationTokenVersion = \"{$this->values['wgAuthenticationTokenVersion']}\";
 392
 393 # Site upgrade key. Must be set to a string (default provided) to turn on the
 394 # web installer while LocalSettings.php is in place
 395 \$wgUpgradeKey = \"{$this->values['wgUpgradeKey']}\";
 396
 397 ## For attaching licensing metadata to pages, and displaying an
 398 ## appropriate copyright notice / icon. GNU Free Documentation
 399 ## License and Creative Commons licenses are supported so far.
 400 \$wgRightsPage = \"\"; # Set to the title of a wiki page that describes your license/copyright
 401 \$wgRightsUrl = \"{$this->values['wgRightsUrl']}\";
 402 \$wgRightsText = \"{$this->values['wgRightsText']}\";
 403 \$wgRightsIcon = \"{$this->values['wgRightsIcon']}\";
 404
 405 # Path to the GNU diff3 utility. Used for conflict resolution.
 406 \$wgDiff3 = \"{$this->values['wgDiff3']}\";
 407
 408 {$groupRights}{$noFollow}## Default skin: you can change the default skin. Use the internal symbolic
 409 ## names, ie 'vector', 'monobook':
 410 \$wgDefaultSkin = \"{$this->values['wgDefaultSkin']}\";
 411 ";
 412         }
 413 }