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