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