includes/Setup.php

   1 <?php
   2 /**
   3  * Include most things that are needed to make MediaWiki work.
   4  *
   5  * This file is included by WebStart.php and doMaintenance.php so that both
   6  * web and maintenance scripts share a final set up phase to include necessary
   7  * files and create global object variables.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26 use MediaWiki\MediaWikiServices;
  27 use Wikimedia\Rdbms\LBFactory;
  28 use Wikimedia\Rdbms\ChronologyProtector;
  29
  30 /**
  31  * This file is not a valid entry point, perform no further processing unless
  32  * MEDIAWIKI is defined
  33  */
  34 if ( !defined( 'MEDIAWIKI' ) ) {
  35         exit( 1 );
  36 }
  37
  38 // Check to see if we are at the file scope
  39 $wgScopeTest = 'MediaWiki Setup.php scope test';
  40 if ( !isset( $GLOBALS['wgScopeTest'] ) || $GLOBALS['wgScopeTest'] !== $wgScopeTest ) {
  41         echo "Error, Setup.php must be included from the file scope.\n";
  42         die( 1 );
  43 }
  44 unset( $wgScopeTest );
  45
  46 /**
  47  * Pre-config setup: Before loading LocalSettings.php
  48  */
  49
  50 // Sanity check (T5782, T122807)
  51 if ( ini_get( 'mbstring.func_overload' ) ) {
  52         die( 'MediaWiki does not support installations where mbstring.func_overload is non-zero.' );
  53 }
  54
  55 // Define MW_ENTRY_POINT if it's not already, so that config code can check the
  56 // value without using defined()
  57 if ( !defined( 'MW_ENTRY_POINT' ) ) {
  58         /**
  59          * The entry point, which may be either the script filename without the
  60          * file extension, or "cli" for maintenance scripts, or "unknown" for any
  61          * entry point that does not set the constant.
  62          */
  63         define( 'MW_ENTRY_POINT', 'unknown' );
  64 }
  65
  66 // Start the autoloader, so that extensions can derive classes from core files
  67 require_once "$IP/includes/AutoLoader.php";
  68
  69 // Load global constants
  70 require_once "$IP/includes/Defines.php";
  71
  72 // Load default settings
  73 require_once "$IP/includes/DefaultSettings.php";
  74
  75 // Load global functions
  76 require_once "$IP/includes/GlobalFunctions.php";
  77
  78 // Load composer's autoloader if present
  79 if ( is_readable( "$IP/vendor/autoload.php" ) ) {
  80         require_once "$IP/vendor/autoload.php";
  81 } elseif ( file_exists( "$IP/vendor/autoload.php" ) ) {
  82         die( "$IP/vendor/autoload.php exists but is not readable" );
  83 }
  84
  85 // Assert that composer dependencies were successfully loaded
  86 // Purposely no leading \ due to it breaking HHVM RepoAuthorative mode
  87 // PHP works fine with both versions
  88 // See https://github.com/facebook/hhvm/issues/5833
  89 if ( !interface_exists( 'Psr\Log\LoggerInterface' ) ) {
  90         $message = (
  91                 'MediaWiki requires the <a href="https://github.com/php-fig/log">PSR-3 logging ' .
  92                 "library</a> to be present. This library is not embedded directly in MediaWiki's " .
  93                 "git repository and must be installed separately by the end user.\n\n" .
  94                 'Please see <a href="https://www.mediawiki.org/wiki/Download_from_Git' .
  95                 '#Fetch_external_libraries">mediawiki.org</a> for help on installing ' .
  96                 'the required components.'
  97         );
  98         echo $message;
  99         trigger_error( $message, E_USER_ERROR );
 100         die( 1 );
 101 }
 102
 103 /**
 104  * Changes to the PHP environment that don't vary on configuration.
 105  */
 106
 107 // Install a header callback
 108 MediaWiki\HeaderCallback::register();
 109
 110 // Set the encoding used by PHP for reading HTTP input, and writing output.
 111 // This is also the default for mbstring functions.
 112 mb_internal_encoding( 'UTF-8' );
 113
 114 /**
 115  * Load LocalSettings.php
 116  */
 117
 118 if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
 119         call_user_func( MW_CONFIG_CALLBACK );
 120 } else {
 121         if ( !defined( 'MW_CONFIG_FILE' ) ) {
 122                 define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
 123         }
 124         require_once MW_CONFIG_FILE;
 125 }
 126
 127 /**
 128  * Customization point after all loading (constants, functions, classes,
 129  * DefaultSettings, LocalSettings). Specifically, this is before usage of
 130  * settings, before instantiation of Profiler (and other singletons), and
 131  * before any setup functions or hooks run.
 132  */
 133
 134 if ( defined( 'MW_SETUP_CALLBACK' ) ) {
 135         call_user_func( MW_SETUP_CALLBACK );
 136 }
 137
 138 /**
 139  * Main setup
 140  */
 141
 142 // Load queued extensions
 143 ExtensionRegistry::getInstance()->loadFromQueue();
 144 // Don't let any other extensions load
 145 ExtensionRegistry::getInstance()->finish();
 146
 147 // Set the configured locale on all requests for consisteny
 148 putenv( "LC_ALL=$wgShellLocale" );
 149 setlocale( LC_ALL, $wgShellLocale );
 150
 151 // Set various default paths sensibly...
 152 if ( $wgScript === false ) {
 153         $wgScript = "$wgScriptPath/index.php";
 154 }
 155 if ( $wgLoadScript === false ) {
 156         $wgLoadScript = "$wgScriptPath/load.php";
 157 }
 158 if ( $wgRestPath === false ) {
 159         $wgRestPath = "$wgScriptPath/rest.php";
 160 }
 161
 162 if ( $wgArticlePath === false ) {
 163         if ( $wgUsePathInfo ) {
 164                 $wgArticlePath = "$wgScript/$1";
 165         } else {
 166                 $wgArticlePath = "$wgScript?title=$1";
 167         }
 168 }
 169
 170 if ( !empty( $wgActionPaths ) && !isset( $wgActionPaths['view'] ) ) {
 171         // 'view' is assumed the default action path everywhere in the code
 172         // but is rarely filled in $wgActionPaths
 173         $wgActionPaths['view'] = $wgArticlePath;
 174 }
 175
 176 if ( $wgResourceBasePath === null ) {
 177         $wgResourceBasePath = $wgScriptPath;
 178 }
 179 if ( $wgStylePath === false ) {
 180         $wgStylePath = "$wgResourceBasePath/skins";
 181 }
 182 if ( $wgLocalStylePath === false ) {
 183         // Avoid wgResourceBasePath here since that may point to a different domain (e.g. CDN)
 184         $wgLocalStylePath = "$wgScriptPath/skins";
 185 }
 186 if ( $wgExtensionAssetsPath === false ) {
 187         $wgExtensionAssetsPath = "$wgResourceBasePath/extensions";
 188 }
 189
 190 if ( $wgLogo === false ) {
 191         $wgLogo = "$wgResourceBasePath/resources/assets/wiki.png";
 192 }
 193
 194 if ( $wgUploadPath === false ) {
 195         $wgUploadPath = "$wgScriptPath/images";
 196 }
 197 if ( $wgUploadDirectory === false ) {
 198         $wgUploadDirectory = "$IP/images";
 199 }
 200 if ( $wgReadOnlyFile === false ) {
 201         $wgReadOnlyFile = "{$wgUploadDirectory}/lock_yBgMBwiR";
 202 }
 203 if ( $wgFileCacheDirectory === false ) {
 204         $wgFileCacheDirectory = "{$wgUploadDirectory}/cache";
 205 }
 206 if ( $wgDeletedDirectory === false ) {
 207         $wgDeletedDirectory = "{$wgUploadDirectory}/deleted";
 208 }
 209
 210 if ( $wgGitInfoCacheDirectory === false && $wgCacheDirectory !== false ) {
 211         $wgGitInfoCacheDirectory = "{$wgCacheDirectory}/gitinfo";
 212 }
 213
 214 // Fix path to icon images after they were moved in 1.24
 215 if ( $wgRightsIcon ) {
 216         $wgRightsIcon = str_replace(
 217                 "{$wgStylePath}/common/images/",
 218                 "{$wgResourceBasePath}/resources/assets/licenses/",
 219                 $wgRightsIcon
 220         );
 221 }
 222
 223 if ( isset( $wgFooterIcons['copyright']['copyright'] )
 224         && $wgFooterIcons['copyright']['copyright'] === []
 225 ) {
 226         if ( $wgRightsIcon || $wgRightsText ) {
 227                 $wgFooterIcons['copyright']['copyright'] = [
 228                         'url' => $wgRightsUrl,
 229                         'src' => $wgRightsIcon,
 230                         'alt' => $wgRightsText,
 231                 ];
 232         }
 233 }
 234
 235 if ( isset( $wgFooterIcons['poweredby'] )
 236         && isset( $wgFooterIcons['poweredby']['mediawiki'] )
 237         && $wgFooterIcons['poweredby']['mediawiki']['src'] === null
 238 ) {
 239         $wgFooterIcons['poweredby']['mediawiki']['src'] =
 240                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_88x31.png";
 241         $wgFooterIcons['poweredby']['mediawiki']['srcset'] =
 242                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_132x47.png 1.5x, " .
 243                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_176x62.png 2x";
 244 }
 245
 246 /**
 247  * Unconditional protection for NS_MEDIAWIKI since otherwise it's too easy for a
 248  * sysadmin to set $wgNamespaceProtection incorrectly and leave the wiki insecure.
 249  *
 250  * Note that this is the definition of editinterface and it can be granted to
 251  * all users if desired.
 252  */
 253 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 254
 255 /**
 256  * The canonical names of namespaces 6 and 7 are, as of v1.14, "File"
 257  * and "File_talk".  The old names "Image" and "Image_talk" are
 258  * retained as aliases for backwards compatibility.
 259  */
 260 $wgNamespaceAliases['Image'] = NS_FILE;
 261 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 262
 263 /**
 264  * Initialise $wgLockManagers to include basic FS version
 265  */
 266 $wgLockManagers[] = [
 267         'name' => 'fsLockManager',
 268         'class' => FSLockManager::class,
 269         'lockDirectory' => "{$wgUploadDirectory}/lockdir",
 270 ];
 271 $wgLockManagers[] = [
 272         'name' => 'nullLockManager',
 273         'class' => NullLockManager::class,
 274 ];
 275
 276 /**
 277  * Default parameters for the "<gallery>" tag.
 278  * @see DefaultSettings.php for description of the fields.
 279  */
 280 $wgGalleryOptions += [
 281         'imagesPerRow' => 0,
 282         'imageWidth' => 120,
 283         'imageHeight' => 120,
 284         'captionLength' => true,
 285         'showBytes' => true,
 286         'showDimensions' => true,
 287         'mode' => 'traditional',
 288 ];
 289
 290 /**
 291  * Shortcuts for $wgLocalFileRepo
 292  */
 293 if ( !$wgLocalFileRepo ) {
 294         $wgLocalFileRepo = [
 295                 'class' => LocalRepo::class,
 296                 'name' => 'local',
 297                 'directory' => $wgUploadDirectory,
 298                 'scriptDirUrl' => $wgScriptPath,
 299                 'url' => $wgUploadBaseUrl ? $wgUploadBaseUrl . $wgUploadPath : $wgUploadPath,
 300                 'hashLevels' => $wgHashedUploadDirectory ? 2 : 0,
 301                 'thumbScriptUrl' => $wgThumbnailScriptPath,
 302                 'transformVia404' => !$wgGenerateThumbnailOnParse,
 303                 'deletedDir' => $wgDeletedDirectory,
 304                 'deletedHashLevels' => $wgHashedUploadDirectory ? 3 : 0
 305         ];
 306 }
 307
 308 if ( !isset( $wgLocalFileRepo['backend'] ) ) {
 309         // Create a default FileBackend name.
 310         // FileBackendGroup will register a default, if absent from $wgFileBackends.
 311         $wgLocalFileRepo['backend'] = $wgLocalFileRepo['name'] . '-backend';
 312 }
 313
 314 /**
 315  * Shortcuts for $wgForeignFileRepos
 316  */
 317 if ( $wgUseSharedUploads ) {
 318         if ( $wgSharedUploadDBname ) {
 319                 $wgForeignFileRepos[] = [
 320                         'class' => ForeignDBRepo::class,
 321                         'name' => 'shared',
 322                         'directory' => $wgSharedUploadDirectory,
 323                         'url' => $wgSharedUploadPath,
 324                         'hashLevels' => $wgHashedSharedUploadDirectory ? 2 : 0,
 325                         'thumbScriptUrl' => $wgSharedThumbnailScriptPath,
 326                         'transformVia404' => !$wgGenerateThumbnailOnParse,
 327                         'dbType' => $wgDBtype,
 328                         'dbServer' => $wgDBserver,
 329                         'dbUser' => $wgDBuser,
 330                         'dbPassword' => $wgDBpassword,
 331                         'dbName' => $wgSharedUploadDBname,
 332                         'dbFlags' => ( $wgDebugDumpSql ? DBO_DEBUG : 0 ) | DBO_DEFAULT,
 333                         'tablePrefix' => $wgSharedUploadDBprefix,
 334                         'hasSharedCache' => $wgCacheSharedUploads,
 335                         'descBaseUrl' => $wgRepositoryBaseUrl,
 336                         'fetchDescription' => $wgFetchCommonsDescriptions,
 337                 ];
 338         } else {
 339                 $wgForeignFileRepos[] = [
 340                         'class' => FileRepo::class,
 341                         'name' => 'shared',
 342                         'directory' => $wgSharedUploadDirectory,
 343                         'url' => $wgSharedUploadPath,
 344                         'hashLevels' => $wgHashedSharedUploadDirectory ? 2 : 0,
 345                         'thumbScriptUrl' => $wgSharedThumbnailScriptPath,
 346                         'transformVia404' => !$wgGenerateThumbnailOnParse,
 347                         'descBaseUrl' => $wgRepositoryBaseUrl,
 348                         'fetchDescription' => $wgFetchCommonsDescriptions,
 349                 ];
 350         }
 351 }
 352 if ( $wgUseInstantCommons ) {
 353         $wgForeignFileRepos[] = [
 354                 'class' => ForeignAPIRepo::class,
 355                 'name' => 'wikimediacommons',
 356                 'apibase' => 'https://commons.wikimedia.org/w/api.php',
 357                 'url' => 'https://upload.wikimedia.org/wikipedia/commons',
 358                 'thumbUrl' => 'https://upload.wikimedia.org/wikipedia/commons/thumb',
 359                 'hashLevels' => 2,
 360                 'transformVia404' => true,
 361                 'fetchDescription' => true,
 362                 'descriptionCacheExpiry' => 43200,
 363                 'apiThumbCacheExpiry' => 0,
 364         ];
 365 }
 366 foreach ( $wgForeignFileRepos as &$repo ) {
 367         if ( !isset( $repo['directory'] ) && $repo['class'] === ForeignAPIRepo::class ) {
 368                 $repo['directory'] = $wgUploadDirectory; // b/c
 369         }
 370         if ( !isset( $repo['backend'] ) ) {
 371                 $repo['backend'] = $repo['name'] . '-backend';
 372         }
 373 }
 374 unset( $repo ); // no global pollution; destroy reference
 375
 376 $rcMaxAgeDays = $wgRCMaxAge / ( 3600 * 24 );
 377 // Ensure that default user options are not invalid, since that breaks Special:Preferences
 378 $wgDefaultUserOptions['rcdays'] = min(
 379         $wgDefaultUserOptions['rcdays'],
 380         ceil( $rcMaxAgeDays )
 381 );
 382 $wgDefaultUserOptions['watchlistdays'] = min(
 383         $wgDefaultUserOptions['watchlistdays'],
 384         ceil( $rcMaxAgeDays )
 385 );
 386 unset( $rcMaxAgeDays );
 387
 388 if ( $wgSkipSkin ) {
 389         // Hard deprecated in 1.34.
 390         wfDeprecated( '$wgSkipSkin – use $wgSkipSkins instead', '1.23' );
 391         $wgSkipSkins[] = $wgSkipSkin;
 392 }
 393
 394 $wgSkipSkins[] = 'fallback';
 395 $wgSkipSkins[] = 'apioutput';
 396
 397 if ( $wgLocalInterwiki ) {
 398         // Hard deprecated in 1.34.
 399         wfDeprecated( '$wgLocalInterwiki – use $wgLocalInterwikis instead', '1.23' );
 400         // @phan-suppress-next-line PhanUndeclaredVariableDim
 401         array_unshift( $wgLocalInterwikis, $wgLocalInterwiki );
 402 }
 403
 404 // Set default shared prefix
 405 if ( $wgSharedPrefix === false ) {
 406         $wgSharedPrefix = $wgDBprefix;
 407 }
 408
 409 // Set default shared schema
 410 if ( $wgSharedSchema === false ) {
 411         $wgSharedSchema = $wgDBmwschema;
 412 }
 413
 414 if ( !$wgCookiePrefix ) {
 415         if ( $wgSharedDB && $wgSharedPrefix && in_array( 'user', $wgSharedTables ) ) {
 416                 $wgCookiePrefix = $wgSharedDB . '_' . $wgSharedPrefix;
 417         } elseif ( $wgSharedDB && in_array( 'user', $wgSharedTables ) ) {
 418                 $wgCookiePrefix = $wgSharedDB;
 419         } elseif ( $wgDBprefix ) {
 420                 $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 421         } else {
 422                 $wgCookiePrefix = $wgDBname;
 423         }
 424 }
 425 $wgCookiePrefix = strtr( $wgCookiePrefix, '=,; +."\'\\[', '__________' );
 426
 427 if ( $wgEnableEmail ) {
 428         $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 429 } else {
 430         // Disable all other email settings automatically if $wgEnableEmail
 431         // is set to false. - T65678
 432         $wgAllowHTMLEmail = false;
 433         $wgEmailAuthentication = false; // do not require auth if you're not sending email anyway
 434         $wgEnableUserEmail = false;
 435         $wgEnotifFromEditor = false;
 436         $wgEnotifImpersonal = false;
 437         $wgEnotifMaxRecips = 0;
 438         $wgEnotifMinorEdits = false;
 439         $wgEnotifRevealEditorAddress = false;
 440         $wgEnotifUseRealName = false;
 441         $wgEnotifUserTalk = false;
 442         $wgEnotifWatchlist = false;
 443         unset( $wgGroupPermissions['user']['sendemail'] );
 444         $wgUseEnotif = false;
 445         $wgUserEmailUseReplyTo = false;
 446         $wgUsersNotifiedOnAllChanges = [];
 447 }
 448
 449 if ( $wgMetaNamespace === false ) {
 450         $wgMetaNamespace = str_replace( ' ', '_', $wgSitename );
 451 }
 452
 453 // Default value is 2000 or the suhosin limit if it is between 1 and 2000
 454 if ( $wgResourceLoaderMaxQueryLength === false ) {
 455         $suhosinMaxValueLength = (int)ini_get( 'suhosin.get.max_value_length' );
 456         if ( $suhosinMaxValueLength > 0 && $suhosinMaxValueLength < 2000 ) {
 457                 $wgResourceLoaderMaxQueryLength = $suhosinMaxValueLength;
 458         } else {
 459                 $wgResourceLoaderMaxQueryLength = 2000;
 460         }
 461         unset( $suhosinMaxValueLength );
 462 }
 463
 464 // Ensure the minimum chunk size is less than PHP upload limits or the maximum
 465 // upload size.
 466 $wgMinUploadChunkSize = min(
 467         $wgMinUploadChunkSize,
 468         UploadBase::getMaxUploadSize( 'file' ),
 469         UploadBase::getMaxPhpUploadSize(),
 470         ( wfShorthandToInteger(
 471                 ini_get( 'post_max_size' ) ?: ini_get( 'hhvm.server.max_post_size' ),
 472                 PHP_INT_MAX
 473         ) ?: PHP_INT_MAX ) - 1024 // Leave some room for other POST parameters
 474 );
 475
 476 /**
 477  * Definitions of the NS_ constants are in Defines.php
 478  * @private
 479  */
 480 $wgCanonicalNamespaceNames = NamespaceInfo::$canonicalNames;
 481
 482 /// @todo UGLY UGLY
 483 if ( is_array( $wgExtraNamespaces ) ) {
 484         $wgCanonicalNamespaceNames += $wgExtraNamespaces;
 485 }
 486
 487 // Hard-deprecate setting $wgDummyLanguageCodes in LocalSettings.php
 488 if ( count( $wgDummyLanguageCodes ) !== 0 ) {
 489         wfDeprecated( '$wgDummyLanguageCodes', '1.29' );
 490 }
 491 // Merge in the legacy language codes, incorporating overrides from the config
 492 $wgDummyLanguageCodes += [
 493         // Internal language codes of the private-use area which get mapped to
 494         // themselves.
 495         'qqq' => 'qqq', // Used for message documentation
 496         'qqx' => 'qqx', // Used for viewing message keys
 497 ] + $wgExtraLanguageCodes + LanguageCode::getDeprecatedCodeMapping();
 498 // Merge in (inverted) BCP 47 mappings
 499 foreach ( LanguageCode::getNonstandardLanguageCodeMapping() as $code => $bcp47 ) {
 500         $bcp47 = strtolower( $bcp47 ); // force case-insensitivity
 501         if ( !isset( $wgDummyLanguageCodes[$bcp47] ) ) {
 502                 $wgDummyLanguageCodes[$bcp47] = $wgDummyLanguageCodes[$code] ?? $code;
 503         }
 504 }
 505
 506 // These are now the same, always
 507 // To determine the user language, use $wgLang->getCode()
 508 $wgContLanguageCode = $wgLanguageCode;
 509
 510 // Temporary backwards-compatibility reading of old Squid-named CDN settings as of MediaWiki 1.34,
 511 // to support sysadmins who fail to update their settings immediately:
 512
 513 if ( isset( $wgUseSquid ) ) {
 514         // If the sysadmin is still setting a value of $wgUseSquid to true but $wgUseCdn is the default of
 515         // false, to be safe, assume they do want this still, so enable it.
 516         if ( !$wgUseCdn && $wgUseSquid ) {
 517                 $wgUseCdn = $wgUseSquid;
 518                 wfDeprecated( '$wgUseSquid enabled but $wgUseCdn disabled; enabling CDN functions', '1.34' );
 519         }
 520 } else {
 521         // Backwards-compatibility for extensions that read this value.
 522         $wgUseSquid = $wgUseCdn;
 523 }
 524
 525 if ( isset( $wgSquidServers ) ) {
 526         // If the sysadmin is still setting a value of $wgSquidServers but $wgCdnServers is the default of
 527         // empty, to be safe, assume they do want these servers to be still used, so use them.
 528         if ( !empty( $wgSquidServers ) && empty( $wgCdnServers ) ) {
 529                 $wgCdnServers = $wgSquidServers;
 530                 wfDeprecated( '$wgSquidServers set, $wgCdnServers empty; using them', '1.34' );
 531         }
 532 } else {
 533         // Backwards-compatibility for extensions that read this value.
 534         $wgSquidServers = $wgCdnServers;
 535 }
 536
 537 if ( isset( $wgSquidServersNoPurge ) ) {
 538         // If the sysadmin is still setting values in $wgSquidServersNoPurge but $wgCdnServersNoPurge is
 539         // the default of empty, to be safe, assume they do want these servers to be still used, so use
 540         // them.
 541         if ( !empty( $wgSquidServersNoPurge ) && empty( $wgCdnServersNoPurge ) ) {
 542                 $wgCdnServersNoPurge = $wgSquidServersNoPurge;
 543                 wfDeprecated( '$wgSquidServersNoPurge set, $wgCdnServersNoPurge empty; using them', '1.34' );
 544         }
 545 } else {
 546         // Backwards-compatibility for extensions that read this value.
 547         $wgSquidServersNoPurge = $wgCdnServersNoPurge;
 548 }
 549
 550 if ( isset( $wgSquidMaxage ) ) {
 551         // If the sysadmin is still setting a value of $wgSquidMaxage and it's higher than $wgCdnMaxAge,
 552         // to be safe, assume they want the higher (lower performance requirement) value, so use that.
 553         if ( $wgCdnMaxAge < $wgSquidMaxage ) {
 554                 $wgCdnMaxAge = $wgSquidMaxage;
 555                 wfDeprecated( '$wgSquidMaxage set higher than $wgCdnMaxAge; using the higher value', '1.34' );
 556         }
 557 } else {
 558         // Backwards-compatibility for extensions that read this value.
 559         $wgSquidMaxage = $wgCdnMaxAge;
 560 }
 561
 562 // Easy to forget to falsify $wgDebugToolbar for static caches.
 563 // If file cache or CDN cache is on, just disable this (DWIMD).
 564 if ( $wgUseFileCache || $wgUseCdn ) {
 565         $wgDebugToolbar = false;
 566 }
 567
 568 // Blacklisted file extensions shouldn't appear on the "allowed" list
 569 $wgFileExtensions = array_values( array_diff( $wgFileExtensions, $wgFileBlacklist ) );
 570
 571 if ( $wgInvalidateCacheOnLocalSettingsChange ) {
 572         Wikimedia\suppressWarnings();
 573         $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', filemtime( "$IP/LocalSettings.php" ) ) );
 574         Wikimedia\restoreWarnings();
 575 }
 576
 577 if ( $wgNewUserLog ) {
 578         // Add new user log type
 579         $wgLogTypes[] = 'newusers';
 580         $wgLogNames['newusers'] = 'newuserlogpage';
 581         $wgLogHeaders['newusers'] = 'newuserlogpagetext';
 582         $wgLogActionsHandlers['newusers/newusers'] = NewUsersLogFormatter::class;
 583         $wgLogActionsHandlers['newusers/create'] = NewUsersLogFormatter::class;
 584         $wgLogActionsHandlers['newusers/create2'] = NewUsersLogFormatter::class;
 585         $wgLogActionsHandlers['newusers/byemail'] = NewUsersLogFormatter::class;
 586         $wgLogActionsHandlers['newusers/autocreate'] = NewUsersLogFormatter::class;
 587 }
 588
 589 if ( $wgPageCreationLog ) {
 590         // Add page creation log type
 591         $wgLogTypes[] = 'create';
 592         $wgLogActionsHandlers['create/create'] = LogFormatter::class;
 593 }
 594
 595 if ( $wgPageLanguageUseDB ) {
 596         $wgLogTypes[] = 'pagelang';
 597         $wgLogActionsHandlers['pagelang/pagelang'] = PageLangLogFormatter::class;
 598 }
 599
 600 if ( $wgCookieSecure === 'detect' ) {
 601         $wgCookieSecure = ( WebRequest::detectProtocol() === 'https' );
 602 }
 603
 604 if ( $wgProfileOnly ) {
 605         // Hard deprecated in 1.34.
 606         wfDeprecated(
 607                 '$wgProfileOnly set the log file in $wgDebugLogGroups[\'profileoutput\'] instead',
 608                 '1.23'
 609         );
 610         $wgDebugLogGroups['profileoutput'] = $wgDebugLogFile;
 611         $wgDebugLogFile = '';
 612 }
 613
 614 // Backwards compatibility with old password limits
 615 if ( $wgMinimalPasswordLength !== false ) {
 616         $wgPasswordPolicy['policies']['default']['MinimalPasswordLength'] = $wgMinimalPasswordLength;
 617 }
 618
 619 if ( $wgMaximalPasswordLength !== false ) {
 620         $wgPasswordPolicy['policies']['default']['MaximalPasswordLength'] = $wgMaximalPasswordLength;
 621 }
 622
 623 if ( $wgPHPSessionHandling !== 'enable' &&
 624         $wgPHPSessionHandling !== 'warn' &&
 625         $wgPHPSessionHandling !== 'disable'
 626 ) {
 627         $wgPHPSessionHandling = 'warn';
 628 }
 629 if ( defined( 'MW_NO_SESSION' ) ) {
 630         // If the entry point wants no session, force 'disable' here unless they
 631         // specifically set it to the (undocumented) 'warn'.
 632         $wgPHPSessionHandling = MW_NO_SESSION === 'warn' ? 'warn' : 'disable';
 633 }
 634
 635 // Disable MWDebug for command line mode, this prevents MWDebug from eating up
 636 // all the memory from logging SQL queries on maintenance scripts
 637 global $wgCommandLineMode;
 638 if ( $wgDebugToolbar && !$wgCommandLineMode ) {
 639         MWDebug::init();
 640 }
 641
 642 // Reset the global service locator, so any services that have already been created will be
 643 // re-created while taking into account any custom settings and extensions.
 644 MediaWikiServices::resetGlobalInstance( new GlobalVarConfig(), 'quick' );
 645
 646 // Define a constant that indicates that the bootstrapping of the service locator
 647 // is complete.
 648 define( 'MW_SERVICE_BOOTSTRAP_COMPLETE', 1 );
 649
 650 MWExceptionHandler::installHandler();
 651
 652 // T48998: Bail out early if $wgArticlePath is non-absolute
 653 foreach ( [ 'wgArticlePath', 'wgVariantArticlePath' ] as $varName ) {
 654         if ( $$varName && !preg_match( '/^(https?:\/\/|\/)/', $$varName ) ) {
 655                 throw new FatalError(
 656                         "If you use a relative URL for \$$varName, it must start " .
 657                         'with a slash (<code>/</code>).<br><br>See ' .
 658                         "<a href=\"https://www.mediawiki.org/wiki/Manual:\$$varName\">" .
 659                         "https://www.mediawiki.org/wiki/Manual:\$$varName</a>."
 660                 );
 661         }
 662 }
 663
 664 if ( $wgCanonicalServer === false ) {
 665         $wgCanonicalServer = wfExpandUrl( $wgServer, PROTO_HTTP );
 666 }
 667
 668 // Set server name
 669 $serverParts = wfParseUrl( $wgCanonicalServer );
 670 if ( $wgServerName !== false ) {
 671         wfWarn( '$wgServerName should be derived from $wgCanonicalServer, '
 672                 . 'not customized. Overwriting $wgServerName.' );
 673 }
 674 $wgServerName = $serverParts['host'];
 675 unset( $serverParts );
 676
 677 // Set defaults for configuration variables
 678 // that are derived from the server name by default
 679 // Note: $wgEmergencyContact and $wgPasswordSender may be false or empty string (T104142)
 680 if ( !$wgEmergencyContact ) {
 681         $wgEmergencyContact = 'wikiadmin@' . $wgServerName;
 682 }
 683 if ( !$wgPasswordSender ) {
 684         $wgPasswordSender = 'apache@' . $wgServerName;
 685 }
 686 if ( !$wgNoReplyAddress ) {
 687         $wgNoReplyAddress = $wgPasswordSender;
 688 }
 689
 690 if ( $wgSecureLogin && substr( $wgServer, 0, 2 ) !== '//' ) {
 691         $wgSecureLogin = false;
 692         wfWarn( 'Secure login was enabled on a server that only supports '
 693                 . 'HTTP or HTTPS. Disabling secure login.' );
 694 }
 695
 696 $wgVirtualRestConfig['global']['domain'] = $wgCanonicalServer;
 697
 698 // Now that GlobalFunctions is loaded, set defaults that depend on it.
 699 if ( $wgTmpDirectory === false ) {
 700         $wgTmpDirectory = wfTempDir();
 701 }
 702
 703 // We don't use counters anymore. Left here for extensions still
 704 // expecting this to exist. Should be removed sometime 1.26 or later.
 705 if ( !isset( $wgDisableCounters ) ) {
 706         $wgDisableCounters = true;
 707 }
 708
 709 if ( $wgMainWANCache === false ) {
 710         // Setup a WAN cache from $wgMainCacheType with no relayer.
 711         // Sites using multiple datacenters can configure a relayer.
 712         $wgMainWANCache = 'mediawiki-main-default';
 713         $wgWANObjectCaches[$wgMainWANCache] = [
 714                 'class'    => WANObjectCache::class,
 715                 'cacheId'  => $wgMainCacheType
 716         ];
 717 }
 718
 719 if ( $wgSharedDB && $wgSharedTables ) {
 720         // Apply $wgSharedDB table aliases for the local LB (all non-foreign DB connections)
 721         MediaWikiServices::getInstance()->getDBLoadBalancer()->setTableAliases(
 722                 array_fill_keys(
 723                         $wgSharedTables,
 724                         [
 725                                 'dbname' => $wgSharedDB,
 726                                 'schema' => $wgSharedSchema,
 727                                 'prefix' => $wgSharedPrefix
 728                         ]
 729                 )
 730         );
 731 }
 732
 733 // Raise the memory limit if it's too low
 734 // Note, this makes use of wfDebug, and thus should not be before
 735 // MWDebug::init() is called.
 736 wfMemoryLimit( $wgMemoryLimit );
 737
 738 /**
 739  * Set up the timezone, suppressing the pseudo-security warning in PHP 5.1+
 740  * that happens whenever you use a date function without the timezone being
 741  * explicitly set. Inspired by phpMyAdmin's treatment of the problem.
 742  */
 743 if ( is_null( $wgLocaltimezone ) ) {
 744         Wikimedia\suppressWarnings();
 745         $wgLocaltimezone = date_default_timezone_get();
 746         Wikimedia\restoreWarnings();
 747 }
 748
 749 date_default_timezone_set( $wgLocaltimezone );
 750 if ( is_null( $wgLocalTZoffset ) ) {
 751         $wgLocalTZoffset = date( 'Z' ) / 60;
 752 }
 753 // The part after the System| is ignored, but rest of MW fills it
 754 // out as the local offset.
 755 $wgDefaultUserOptions['timecorrection'] = "System|$wgLocalTZoffset";
 756
 757 if ( !$wgDBerrorLogTZ ) {
 758         $wgDBerrorLogTZ = $wgLocaltimezone;
 759 }
 760
 761 // Initialize the request object in $wgRequest
 762 $wgRequest = RequestContext::getMain()->getRequest(); // BackCompat
 763 // Set user IP/agent information for agent session consistency purposes
 764 $cpPosInfo = LBFactory::getCPInfoFromCookieValue(
 765         // The cookie has no prefix and is set by MediaWiki::preOutputCommit()
 766         $wgRequest->getCookie( 'cpPosIndex', '' ),
 767         // Mitigate broken client-side cookie expiration handling (T190082)
 768         time() - ChronologyProtector::POSITION_COOKIE_TTL
 769 );
 770 MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->setRequestInfo( [
 771         'IPAddress' => $wgRequest->getIP(),
 772         'UserAgent' => $wgRequest->getHeader( 'User-Agent' ),
 773         'ChronologyProtection' => $wgRequest->getHeader( 'MediaWiki-Chronology-Protection' ),
 774         'ChronologyPositionIndex' => $wgRequest->getInt( 'cpPosIndex', $cpPosInfo['index'] ),
 775         'ChronologyClientId' => $cpPosInfo['clientId']
 776                 ?? $wgRequest->getHeader( 'MediaWiki-Chronology-Client-Id' )
 777 ] );
 778 unset( $cpPosInfo );
 779 // Make sure that object caching does not undermine the ChronologyProtector improvements
 780 if ( $wgRequest->getCookie( 'UseDC', '' ) === 'master' ) {
 781         // The user is pinned to the primary DC, meaning that they made recent changes which should
 782         // be reflected in their subsequent web requests. Avoid the use of interim cache keys because
 783         // they use a blind TTL and could be stale if an object changes twice in a short time span.
 784         MediaWikiServices::getInstance()->getMainWANObjectCache()->useInterimHoldOffCaching( false );
 785 }
 786
 787 // Useful debug output
 788 if ( $wgCommandLineMode ) {
 789         if ( isset( $self ) ) {
 790                 wfDebug( "\n\nStart command line script $self\n" );
 791         }
 792 } else {
 793         $debug = "\n\nStart request {$wgRequest->getMethod()} {$wgRequest->getRequestURL()}\n";
 794         $debug .= "HTTP HEADERS:\n";
 795         foreach ( $wgRequest->getAllHeaders() as $name => $value ) {
 796                 $debug .= "$name: $value\n";
 797         }
 798         wfDebug( $debug );
 799 }
 800
 801 $wgMemc = ObjectCache::getLocalClusterInstance();
 802 $messageMemc = wfGetMessageCacheStorage();
 803
 804 // Most of the config is out, some might want to run hooks here.
 805 Hooks::run( 'SetupAfterCache' );
 806
 807 /**
 808  * @var Language $wgContLang
 809  * @deprecated since 1.32, use the ContentLanguage service directly
 810  */
 811 $wgContLang = MediaWikiServices::getInstance()->getContentLanguage();
 812
 813 // Now that variant lists may be available...
 814 $wgRequest->interpolateTitle();
 815
 816 /**
 817  * @var MediaWiki\Session\SessionId|null $wgInitialSessionId The persistent
 818  * session ID (if any) loaded at startup
 819  */
 820 $wgInitialSessionId = null;
 821 if ( !defined( 'MW_NO_SESSION' ) && !$wgCommandLineMode ) {
 822         // If session.auto_start is there, we can't touch session name
 823         if ( $wgPHPSessionHandling !== 'disable' && !wfIniGetBool( 'session.auto_start' ) ) {
 824                 session_name( $wgSessionName ?: $wgCookiePrefix . '_session' );
 825         }
 826
 827         // Create the SessionManager singleton and set up our session handler,
 828         // unless we're specifically asked not to.
 829         if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) {
 830                 MediaWiki\Session\PHPSessionHandler::install(
 831                         MediaWiki\Session\SessionManager::singleton()
 832                 );
 833         }
 834
 835         // Initialize the session
 836         try {
 837                 $session = MediaWiki\Session\SessionManager::getGlobalSession();
 838         } catch ( OverflowException $ex ) {
 839                 if ( isset( $ex->sessionInfos ) && count( $ex->sessionInfos ) >= 2 ) {
 840                         // The exception is because the request had multiple possible
 841                         // sessions tied for top priority. Report this to the user.
 842                         $list = [];
 843                         foreach ( $ex->sessionInfos as $info ) {
 844                                 $list[] = $info->getProvider()->describe( $wgContLang );
 845                         }
 846                         $list = $wgContLang->listToText( $list );
 847                         throw new HttpError( 400,
 848                                 Message::newFromKey( 'sessionmanager-tie', $list )->inLanguage( $wgContLang )->plain()
 849                         );
 850                 }
 851
 852                 // Not the one we want, rethrow
 853                 throw $ex;
 854         }
 855
 856         if ( $session->isPersistent() ) {
 857                 $wgInitialSessionId = $session->getSessionId();
 858         }
 859
 860         $session->renew();
 861         if ( MediaWiki\Session\PHPSessionHandler::isEnabled() &&
 862                 ( $session->isPersistent() || $session->shouldRememberUser() ) &&
 863                 session_id() !== $session->getId()
 864         ) {
 865                 // Start the PHP-session for backwards compatibility
 866                 if ( session_id() !== '' ) {
 867                         wfDebugLog( 'session', 'PHP session {old_id} was already started, changing to {new_id}', 'all', [
 868                                 'old_id' => session_id(),
 869                                 'new_id' => $session->getId(),
 870                         ] );
 871                         session_write_close();
 872                 }
 873                 session_id( $session->getId() );
 874                 session_start();
 875         }
 876
 877         unset( $session );
 878 } else {
 879         // Even if we didn't set up a global Session, still install our session
 880         // handler unless specifically requested not to.
 881         if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) {
 882                 MediaWiki\Session\PHPSessionHandler::install(
 883                         MediaWiki\Session\SessionManager::singleton()
 884                 );
 885         }
 886 }
 887
 888 /**
 889  * @var User $wgUser
 890  */
 891 $wgUser = RequestContext::getMain()->getUser(); // BackCompat
 892
 893 /**
 894  * @var Language $wgLang
 895  */
 896 $wgLang = new StubUserLang;
 897
 898 /**
 899  * @var OutputPage $wgOut
 900  */
 901 $wgOut = RequestContext::getMain()->getOutput(); // BackCompat
 902
 903 /**
 904  * @var Parser $wgParser
 905  * @deprecated since 1.32, use MediaWikiServices::getInstance()->getParser() instead
 906  */
 907 $wgParser = new StubObject( 'wgParser', function () {
 908         return MediaWikiServices::getInstance()->getParser();
 909 } );
 910
 911 /**
 912  * @var Title $wgTitle
 913  */
 914 $wgTitle = null;
 915
 916 // Extension setup functions
 917 // Entries should be added to this variable during the inclusion
 918 // of the extension file. This allows the extension to perform
 919 // any necessary initialisation in the fully initialised environment
 920 foreach ( $wgExtensionFunctions as $func ) {
 921         call_user_func( $func );
 922 }
 923
 924 // If the session user has a 0 id but a valid name, that means we need to
 925 // autocreate it.
 926 if ( !defined( 'MW_NO_SESSION' ) && !$wgCommandLineMode ) {
 927         $sessionUser = MediaWiki\Session\SessionManager::getGlobalSession()->getUser();
 928         if ( $sessionUser->getId() === 0 && User::isValidUserName( $sessionUser->getName() ) ) {
 929                 $res = MediaWiki\Auth\AuthManager::singleton()->autoCreateUser(
 930                         $sessionUser,
 931                         MediaWiki\Auth\AuthManager::AUTOCREATE_SOURCE_SESSION,
 932                         true
 933                 );
 934                 \MediaWiki\Logger\LoggerFactory::getInstance( 'authevents' )->info( 'Autocreation attempt', [
 935                         'event' => 'autocreate',
 936                         'status' => $res,
 937                 ] );
 938                 unset( $res );
 939         }
 940         unset( $sessionUser );
 941 }
 942
 943 if ( !$wgCommandLineMode ) {
 944         Pingback::schedulePingback();
 945 }
 946
 947 $wgFullyInitialised = true;