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( $message, E_USER_ERROR );
  89         die( 1 );
  90 }
  91
  92 /**
  93  * Changes to the PHP environment that don't vary on configuration.
  94  */
  95
  96 // Install a header callback
  97 MediaWiki\HeaderCallback::register();
  98
  99 // Set the encoding used by reading HTTP input, writing HTTP output.
 100 // This is also the default for mbstring functions.
 101 mb_internal_encoding( 'UTF-8' );
 102
 103 /**
 104  * Load LocalSettings.php
 105  */
 106
 107 if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
 108         call_user_func( MW_CONFIG_CALLBACK );
 109 } else {
 110         if ( !defined( 'MW_CONFIG_FILE' ) ) {
 111                 define( 'MW_CONFIG_FILE', "$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 $fname = 'Setup.php';
 132 $ps_setup = Profiler::instance()->scopedProfileIn( $fname );
 133
 134 // Load queued extensions
 135 ExtensionRegistry::getInstance()->loadFromQueue();
 136 // Don't let any other extensions load
 137 ExtensionRegistry::getInstance()->finish();
 138
 139 // Set the configured locale on all requests for consisteny
 140 putenv( "LC_ALL=$wgShellLocale" );
 141 setlocale( LC_ALL, $wgShellLocale );
 142
 143 // Set various default paths sensibly...
 144 $ps_default = Profiler::instance()->scopedProfileIn( $fname . '-defaults' );
 145
 146 if ( $wgScript === false ) {
 147         $wgScript = "$wgScriptPath/index.php";
 148 }
 149 if ( $wgLoadScript === false ) {
 150         $wgLoadScript = "$wgScriptPath/load.php";
 151 }
 152 if ( $wgRestPath === false ) {
 153         $wgRestPath = "$wgScriptPath/rest.php";
 154 }
 155
 156 if ( $wgArticlePath === false ) {
 157         if ( $wgUsePathInfo ) {
 158                 $wgArticlePath = "$wgScript/$1";
 159         } else {
 160                 $wgArticlePath = "$wgScript?title=$1";
 161         }
 162 }
 163
 164 if ( !empty( $wgActionPaths ) && !isset( $wgActionPaths['view'] ) ) {
 165         // 'view' is assumed the default action path everywhere in the code
 166         // but is rarely filled in $wgActionPaths
 167         $wgActionPaths['view'] = $wgArticlePath;
 168 }
 169
 170 if ( $wgResourceBasePath === null ) {
 171         $wgResourceBasePath = $wgScriptPath;
 172 }
 173 if ( $wgStylePath === false ) {
 174         $wgStylePath = "$wgResourceBasePath/skins";
 175 }
 176 if ( $wgLocalStylePath === false ) {
 177         // Avoid wgResourceBasePath here since that may point to a different domain (e.g. CDN)
 178         $wgLocalStylePath = "$wgScriptPath/skins";
 179 }
 180 if ( $wgExtensionAssetsPath === false ) {
 181         $wgExtensionAssetsPath = "$wgResourceBasePath/extensions";
 182 }
 183
 184 if ( $wgLogo === false ) {
 185         $wgLogo = "$wgResourceBasePath/resources/assets/wiki.png";
 186 }
 187
 188 if ( $wgUploadPath === false ) {
 189         $wgUploadPath = "$wgScriptPath/images";
 190 }
 191 if ( $wgUploadDirectory === false ) {
 192         $wgUploadDirectory = "$IP/images";
 193 }
 194 if ( $wgReadOnlyFile === false ) {
 195         $wgReadOnlyFile = "{$wgUploadDirectory}/lock_yBgMBwiR";
 196 }
 197 if ( $wgFileCacheDirectory === false ) {
 198         $wgFileCacheDirectory = "{$wgUploadDirectory}/cache";
 199 }
 200 if ( $wgDeletedDirectory === false ) {
 201         $wgDeletedDirectory = "{$wgUploadDirectory}/deleted";
 202 }
 203
 204 if ( $wgGitInfoCacheDirectory === false && $wgCacheDirectory !== false ) {
 205         $wgGitInfoCacheDirectory = "{$wgCacheDirectory}/gitinfo";
 206 }
 207
 208 // Fix path to icon images after they were moved in 1.24
 209 if ( $wgRightsIcon ) {
 210         $wgRightsIcon = str_replace(
 211                 "{$wgStylePath}/common/images/",
 212                 "{$wgResourceBasePath}/resources/assets/licenses/",
 213                 $wgRightsIcon
 214         );
 215 }
 216
 217 if ( isset( $wgFooterIcons['copyright']['copyright'] )
 218         && $wgFooterIcons['copyright']['copyright'] === []
 219 ) {
 220         if ( $wgRightsIcon || $wgRightsText ) {
 221                 $wgFooterIcons['copyright']['copyright'] = [
 222                         'url' => $wgRightsUrl,
 223                         'src' => $wgRightsIcon,
 224                         'alt' => $wgRightsText,
 225                 ];
 226         }
 227 }
 228
 229 if ( isset( $wgFooterIcons['poweredby'] )
 230         && isset( $wgFooterIcons['poweredby']['mediawiki'] )
 231         && $wgFooterIcons['poweredby']['mediawiki']['src'] === null
 232 ) {
 233         $wgFooterIcons['poweredby']['mediawiki']['src'] =
 234                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_88x31.png";
 235         $wgFooterIcons['poweredby']['mediawiki']['srcset'] =
 236                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_132x47.png 1.5x, " .
 237                 "$wgResourceBasePath/resources/assets/poweredby_mediawiki_176x62.png 2x";
 238 }
 239
 240 /**
 241  * Unconditional protection for NS_MEDIAWIKI since otherwise it's too easy for a
 242  * sysadmin to set $wgNamespaceProtection incorrectly and leave the wiki insecure.
 243  *
 244  * Note that this is the definition of editinterface and it can be granted to
 245  * all users if desired.
 246  */
 247 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 248
 249 /**
 250  * The canonical names of namespaces 6 and 7 are, as of v1.14, "File"
 251  * and "File_talk".  The old names "Image" and "Image_talk" are
 252  * retained as aliases for backwards compatibility.
 253  */
 254 $wgNamespaceAliases['Image'] = NS_FILE;
 255 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 256
 257 /**
 258  * Initialise $wgLockManagers to include basic FS version
 259  */
 260 $wgLockManagers[] = [
 261         'name' => 'fsLockManager',
 262         'class' => FSLockManager::class,
 263         'lockDirectory' => "{$wgUploadDirectory}/lockdir",
 264 ];
 265 $wgLockManagers[] = [
 266         'name' => 'nullLockManager',
 267         'class' => NullLockManager::class,
 268 ];
 269
 270 /**
 271  * Default parameters for the "<gallery>" tag.
 272  * @see DefaultSettings.php for description of the fields.
 273  */
 274 $wgGalleryOptions += [
 275         'imagesPerRow' => 0,
 276         'imageWidth' => 120,
 277         'imageHeight' => 120,
 278         'captionLength' => true,
 279         'showBytes' => true,
 280         'showDimensions' => true,
 281         'mode' => 'traditional',
 282 ];
 283
 284 /**
 285  * Shortcuts for $wgLocalFileRepo
 286  */
 287 if ( !$wgLocalFileRepo ) {
 288         $wgLocalFileRepo = [
 289                 'class' => LocalRepo::class,
 290                 'name' => 'local',
 291                 'directory' => $wgUploadDirectory,
 292                 'scriptDirUrl' => $wgScriptPath,
 293                 'url' => $wgUploadBaseUrl ? $wgUploadBaseUrl . $wgUploadPath : $wgUploadPath,
 294                 'hashLevels' => $wgHashedUploadDirectory ? 2 : 0,
 295                 'thumbScriptUrl' => $wgThumbnailScriptPath,
 296                 'transformVia404' => !$wgGenerateThumbnailOnParse,
 297                 'deletedDir' => $wgDeletedDirectory,
 298                 'deletedHashLevels' => $wgHashedUploadDirectory ? 3 : 0
 299         ];
 300 }
 301
 302 if ( !isset( $wgLocalFileRepo['backend'] ) ) {
 303         // Create a default FileBackend name.
 304         // FileBackendGroup will register a default, if absent from $wgFileBackends.
 305         $wgLocalFileRepo['backend'] = $wgLocalFileRepo['name'] . '-backend';
 306 }
 307
 308 /**
 309  * Shortcuts for $wgForeignFileRepos
 310  */
 311 if ( $wgUseSharedUploads ) {
 312         if ( $wgSharedUploadDBname ) {
 313                 $wgForeignFileRepos[] = [
 314                         'class' => ForeignDBRepo::class,
 315                         'name' => 'shared',
 316                         'directory' => $wgSharedUploadDirectory,
 317                         'url' => $wgSharedUploadPath,
 318                         'hashLevels' => $wgHashedSharedUploadDirectory ? 2 : 0,
 319                         'thumbScriptUrl' => $wgSharedThumbnailScriptPath,
 320                         'transformVia404' => !$wgGenerateThumbnailOnParse,
 321                         'dbType' => $wgDBtype,
 322                         'dbServer' => $wgDBserver,
 323                         'dbUser' => $wgDBuser,
 324                         'dbPassword' => $wgDBpassword,
 325                         'dbName' => $wgSharedUploadDBname,
 326                         'dbFlags' => ( $wgDebugDumpSql ? DBO_DEBUG : 0 ) | DBO_DEFAULT,
 327                         'tablePrefix' => $wgSharedUploadDBprefix,
 328                         'hasSharedCache' => $wgCacheSharedUploads,
 329                         'descBaseUrl' => $wgRepositoryBaseUrl,
 330                         'fetchDescription' => $wgFetchCommonsDescriptions,
 331                 ];
 332         } else {
 333                 $wgForeignFileRepos[] = [
 334                         'class' => FileRepo::class,
 335                         'name' => 'shared',
 336                         'directory' => $wgSharedUploadDirectory,
 337                         'url' => $wgSharedUploadPath,
 338                         'hashLevels' => $wgHashedSharedUploadDirectory ? 2 : 0,
 339                         'thumbScriptUrl' => $wgSharedThumbnailScriptPath,
 340                         'transformVia404' => !$wgGenerateThumbnailOnParse,
 341                         'descBaseUrl' => $wgRepositoryBaseUrl,
 342                         'fetchDescription' => $wgFetchCommonsDescriptions,
 343                 ];
 344         }
 345 }
 346 if ( $wgUseInstantCommons ) {
 347         $wgForeignFileRepos[] = [
 348                 'class' => ForeignAPIRepo::class,
 349                 'name' => 'wikimediacommons',
 350                 'apibase' => 'https://commons.wikimedia.org/w/api.php',
 351                 'url' => 'https://upload.wikimedia.org/wikipedia/commons',
 352                 'thumbUrl' => 'https://upload.wikimedia.org/wikipedia/commons/thumb',
 353                 'hashLevels' => 2,
 354                 'transformVia404' => true,
 355                 'fetchDescription' => true,
 356                 'descriptionCacheExpiry' => 43200,
 357                 'apiThumbCacheExpiry' => 0,
 358         ];
 359 }
 360 foreach ( $wgForeignFileRepos as &$repo ) {
 361         if ( !isset( $repo['directory'] ) && $repo['class'] === ForeignAPIRepo::class ) {
 362                 $repo['directory'] = $wgUploadDirectory; // b/c
 363         }
 364         if ( !isset( $repo['backend'] ) ) {
 365                 $repo['backend'] = $repo['name'] . '-backend';
 366         }
 367 }
 368 unset( $repo ); // no global pollution; destroy reference
 369
 370 $rcMaxAgeDays = $wgRCMaxAge / ( 3600 * 24 );
 371 if ( $wgRCFilterByAge ) {
 372         // Trim down $wgRCLinkDays so that it only lists links which are valid
 373         // as determined by $wgRCMaxAge.
 374         // Note that we allow 1 link higher than the max for things like 56 days but a 60 day link.
 375         sort( $wgRCLinkDays );
 376
 377         foreach ( $wgRCLinkDays as $i => $days ) {
 378                 if ( $days >= $rcMaxAgeDays ) {
 379                         array_splice( $wgRCLinkDays, $i + 1 );
 380                         break;
 381                 }
 382         }
 383 }
 384 // Ensure that default user options are not invalid, since that breaks Special:Preferences
 385 $wgDefaultUserOptions['rcdays'] = min(
 386         $wgDefaultUserOptions['rcdays'],
 387         ceil( $rcMaxAgeDays )
 388 );
 389 $wgDefaultUserOptions['watchlistdays'] = min(
 390         $wgDefaultUserOptions['watchlistdays'],
 391         ceil( $rcMaxAgeDays )
 392 );
 393 unset( $rcMaxAgeDays );
 394
 395 if ( $wgSkipSkin ) {
 396         $wgSkipSkins[] = $wgSkipSkin;
 397 }
 398
 399 $wgSkipSkins[] = 'fallback';
 400 $wgSkipSkins[] = 'apioutput';
 401
 402 if ( $wgLocalInterwiki ) {
 403         array_unshift( $wgLocalInterwikis, $wgLocalInterwiki );
 404 }
 405
 406 // Set default shared prefix
 407 if ( $wgSharedPrefix === false ) {
 408         $wgSharedPrefix = $wgDBprefix;
 409 }
 410
 411 // Set default shared schema
 412 if ( $wgSharedSchema === false ) {
 413         $wgSharedSchema = $wgDBmwschema;
 414 }
 415
 416 if ( !$wgCookiePrefix ) {
 417         if ( $wgSharedDB && $wgSharedPrefix && in_array( 'user', $wgSharedTables ) ) {
 418                 $wgCookiePrefix = $wgSharedDB . '_' . $wgSharedPrefix;
 419         } elseif ( $wgSharedDB && in_array( 'user', $wgSharedTables ) ) {
 420                 $wgCookiePrefix = $wgSharedDB;
 421         } elseif ( $wgDBprefix ) {
 422                 $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 423         } else {
 424                 $wgCookiePrefix = $wgDBname;
 425         }
 426 }
 427 $wgCookiePrefix = strtr( $wgCookiePrefix, '=,; +."\'\\[', '__________' );
 428
 429 if ( $wgEnableEmail ) {
 430         $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 431 } else {
 432         // Disable all other email settings automatically if $wgEnableEmail
 433         // is set to false. - T65678
 434         $wgAllowHTMLEmail = false;
 435         $wgEmailAuthentication = false; // do not require auth if you're not sending email anyway
 436         $wgEnableUserEmail = false;
 437         $wgEnotifFromEditor = false;
 438         $wgEnotifImpersonal = false;
 439         $wgEnotifMaxRecips = 0;
 440         $wgEnotifMinorEdits = false;
 441         $wgEnotifRevealEditorAddress = false;
 442         $wgEnotifUseRealName = false;
 443         $wgEnotifUserTalk = false;
 444         $wgEnotifWatchlist = false;
 445         unset( $wgGroupPermissions['user']['sendemail'] );
 446         $wgUseEnotif = false;
 447         $wgUserEmailUseReplyTo = false;
 448         $wgUsersNotifiedOnAllChanges = [];
 449 }
 450
 451 if ( $wgMetaNamespace === false ) {
 452         $wgMetaNamespace = str_replace( ' ', '_', $wgSitename );
 453 }
 454
 455 // Default value is 2000 or the suhosin limit if it is between 1 and 2000
 456 if ( $wgResourceLoaderMaxQueryLength === false ) {
 457         $suhosinMaxValueLength = (int)ini_get( 'suhosin.get.max_value_length' );
 458         if ( $suhosinMaxValueLength > 0 && $suhosinMaxValueLength < 2000 ) {
 459                 $wgResourceLoaderMaxQueryLength = $suhosinMaxValueLength;
 460         } else {
 461                 $wgResourceLoaderMaxQueryLength = 2000;
 462         }
 463         unset( $suhosinMaxValueLength );
 464 }
 465
 466 // Ensure the minimum chunk size is less than PHP upload limits or the maximum
 467 // upload size.
 468 $wgMinUploadChunkSize = min(
 469         $wgMinUploadChunkSize,
 470         UploadBase::getMaxUploadSize( 'file' ),
 471         UploadBase::getMaxPhpUploadSize(),
 472         ( wfShorthandToInteger(
 473                 ini_get( 'post_max_size' ) ?: ini_get( 'hhvm.server.max_post_size' ),
 474                 PHP_INT_MAX
 475         ) ?: PHP_INT_MAX ) - 1024 // Leave some room for other POST parameters
 476 );
 477
 478 /**
 479  * Definitions of the NS_ constants are in Defines.php
 480  * @private
 481  */
 482 $wgCanonicalNamespaceNames = [
 483         NS_MEDIA            => 'Media',
 484         NS_SPECIAL          => 'Special',
 485         NS_TALK             => 'Talk',
 486         NS_USER             => 'User',
 487         NS_USER_TALK        => 'User_talk',
 488         NS_PROJECT          => 'Project',
 489         NS_PROJECT_TALK     => 'Project_talk',
 490         NS_FILE             => 'File',
 491         NS_FILE_TALK        => 'File_talk',
 492         NS_MEDIAWIKI        => 'MediaWiki',
 493         NS_MEDIAWIKI_TALK   => 'MediaWiki_talk',
 494         NS_TEMPLATE         => 'Template',
 495         NS_TEMPLATE_TALK    => 'Template_talk',
 496         NS_HELP             => 'Help',
 497         NS_HELP_TALK        => 'Help_talk',
 498         NS_CATEGORY         => 'Category',
 499         NS_CATEGORY_TALK    => 'Category_talk',
 500 ];
 501
 502 /// @todo UGLY UGLY
 503 if ( is_array( $wgExtraNamespaces ) ) {
 504         $wgCanonicalNamespaceNames += $wgExtraNamespaces;
 505 }
 506
 507 // Hard-deprecate setting $wgDummyLanguageCodes in LocalSettings.php
 508 if ( count( $wgDummyLanguageCodes ) !== 0 ) {
 509         wfDeprecated( '$wgDummyLanguageCodes', '1.29' );
 510 }
 511 // Merge in the legacy language codes, incorporating overrides from the config
 512 $wgDummyLanguageCodes += [
 513         // Internal language codes of the private-use area which get mapped to
 514         // themselves.
 515         'qqq' => 'qqq', // Used for message documentation
 516         'qqx' => 'qqx', // Used for viewing message keys
 517 ] + $wgExtraLanguageCodes + LanguageCode::getDeprecatedCodeMapping();
 518 // Merge in (inverted) BCP 47 mappings
 519 foreach ( LanguageCode::getNonstandardLanguageCodeMapping() as $code => $bcp47 ) {
 520         $bcp47 = strtolower( $bcp47 ); // force case-insensitivity
 521         if ( !isset( $wgDummyLanguageCodes[$bcp47] ) ) {
 522                 $wgDummyLanguageCodes[$bcp47] = $wgDummyLanguageCodes[$code] ?? $code;
 523         }
 524 }
 525
 526 // These are now the same, always
 527 // To determine the user language, use $wgLang->getCode()
 528 $wgContLanguageCode = $wgLanguageCode;
 529
 530 // Temporary backwards-compatibility reading of old Squid-named CDN settings as of MediaWiki 1.34,
 531 // to support sysadmins who fail to update their settings immediately:
 532
 533 if ( isset( $wgUseSquid ) ) {
 534         // If the sysadmin is still setting a value of $wgUseSquid to true but $wgUseCdn is the default of
 535         // false, to be safe, assume they do want this still, so enable it.
 536         if ( !$wgUseCdn && $wgUseSquid ) {
 537                 $wgUseCdn = $wgUseSquid;
 538                 wfDeprecated( '$wgUseSquid enabled but $wgUseCdn disabled; enabling CDN functions', '1.34' );
 539         }
 540 } else {
 541         // Backwards-compatibility for extensions that read this value.
 542         $wgUseSquid = $wgUseCdn;
 543 }
 544
 545 if ( isset( $wgSquidServers ) ) {
 546         // If the sysadmin is still setting a value of $wgSquidServers but $wgCdnServers is the default of
 547         // empty, to be safe, assume they do want these servers to be still used, so use them.
 548         if ( !empty( $wgSquidServers ) && empty( $wgCdnServers ) ) {
 549                 $wgCdnServers = $wgSquidServers;
 550                 wfDeprecated( '$wgSquidServers set, $wgCdnServers empty; using them', '1.34' );
 551         }
 552 } else {
 553         // Backwards-compatibility for extensions that read this value.
 554         $wgSquidServers = $wgCdnServers;
 555 }
 556
 557 if ( isset( $wgSquidServersNoPurge ) ) {
 558         // If the sysadmin is still setting values in $wgSquidServersNoPurge but $wgCdnServersNoPurge is
 559         // the default of empty, to be safe, assume they do want these servers to be still used, so use
 560         // them.
 561         if ( !empty( $wgSquidServersNoPurge ) && empty( $wgCdnServersNoPurge ) ) {
 562                 $wgCdnServersNoPurge = $wgSquidServersNoPurge;
 563                 wfDeprecated( '$wgSquidServersNoPurge set, $wgCdnServersNoPurge empty; using them', '1.34' );
 564         }
 565 } else {
 566         // Backwards-compatibility for extensions that read this value.
 567         $wgSquidServersNoPurge = $wgCdnServersNoPurge;
 568 }
 569
 570 if ( isset( $wgSquidMaxage ) ) {
 571         // If the sysadmin is still setting a value of $wgSquidMaxage and it's higher than $wgCdnMaxAge,
 572         // to be safe, assume they want the higher (lower performance requirement) value, so use that.
 573         if ( $wgCdnMaxAge < $wgSquidMaxage ) {
 574                 $wgCdnMaxAge = $wgSquidMaxage;
 575                 wfDeprecated( '$wgSquidMaxage set higher than $wgCdnMaxAge; using the higher value', '1.34' );
 576         }
 577 } else {
 578         // Backwards-compatibility for extensions that read this value.
 579         $wgSquidMaxage = $wgCdnMaxAge;
 580 }
 581
 582 // Easy to forget to falsify $wgDebugToolbar for static caches.
 583 // If file cache or CDN cache is on, just disable this (DWIMD).
 584 if ( $wgUseFileCache || $wgUseCdn ) {
 585         $wgDebugToolbar = false;
 586 }
 587
 588 // Blacklisted file extensions shouldn't appear on the "allowed" list
 589 $wgFileExtensions = array_values( array_diff( $wgFileExtensions, $wgFileBlacklist ) );
 590
 591 if ( $wgInvalidateCacheOnLocalSettingsChange ) {
 592         Wikimedia\suppressWarnings();
 593         $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', filemtime( "$IP/LocalSettings.php" ) ) );
 594         Wikimedia\restoreWarnings();
 595 }
 596
 597 if ( $wgNewUserLog ) {
 598         // Add new user log type
 599         $wgLogTypes[] = 'newusers';
 600         $wgLogNames['newusers'] = 'newuserlogpage';
 601         $wgLogHeaders['newusers'] = 'newuserlogpagetext';
 602         $wgLogActionsHandlers['newusers/newusers'] = NewUsersLogFormatter::class;
 603         $wgLogActionsHandlers['newusers/create'] = NewUsersLogFormatter::class;
 604         $wgLogActionsHandlers['newusers/create2'] = NewUsersLogFormatter::class;
 605         $wgLogActionsHandlers['newusers/byemail'] = NewUsersLogFormatter::class;
 606         $wgLogActionsHandlers['newusers/autocreate'] = NewUsersLogFormatter::class;
 607 }
 608
 609 if ( $wgPageCreationLog ) {
 610         // Add page creation log type
 611         $wgLogTypes[] = 'create';
 612         $wgLogActionsHandlers['create/create'] = LogFormatter::class;
 613 }
 614
 615 if ( $wgPageLanguageUseDB ) {
 616         $wgLogTypes[] = 'pagelang';
 617         $wgLogActionsHandlers['pagelang/pagelang'] = PageLangLogFormatter::class;
 618 }
 619
 620 if ( $wgCookieSecure === 'detect' ) {
 621         $wgCookieSecure = ( WebRequest::detectProtocol() === 'https' );
 622 }
 623
 624 if ( $wgProfileOnly ) {
 625         $wgDebugLogGroups['profileoutput'] = $wgDebugLogFile;
 626         $wgDebugLogFile = '';
 627 }
 628
 629 // Backwards compatibility with old password limits
 630 if ( $wgMinimalPasswordLength !== false ) {
 631         $wgPasswordPolicy['policies']['default']['MinimalPasswordLength'] = $wgMinimalPasswordLength;
 632 }
 633
 634 if ( $wgMaximalPasswordLength !== false ) {
 635         $wgPasswordPolicy['policies']['default']['MaximalPasswordLength'] = $wgMaximalPasswordLength;
 636 }
 637
 638 if ( $wgPHPSessionHandling !== 'enable' &&
 639         $wgPHPSessionHandling !== 'warn' &&
 640         $wgPHPSessionHandling !== 'disable'
 641 ) {
 642         $wgPHPSessionHandling = 'warn';
 643 }
 644 if ( defined( 'MW_NO_SESSION' ) ) {
 645         // If the entry point wants no session, force 'disable' here unless they
 646         // specifically set it to the (undocumented) 'warn'.
 647         $wgPHPSessionHandling = MW_NO_SESSION === 'warn' ? 'warn' : 'disable';
 648 }
 649
 650 Profiler::instance()->scopedProfileOut( $ps_default );
 651
 652 // Disable MWDebug for command line mode, this prevents MWDebug from eating up
 653 // all the memory from logging SQL queries on maintenance scripts
 654 global $wgCommandLineMode;
 655 if ( $wgDebugToolbar && !$wgCommandLineMode ) {
 656         MWDebug::init();
 657 }
 658
 659 // Reset the global service locator, so any services that have already been created will be
 660 // re-created while taking into account any custom settings and extensions.
 661 MediaWikiServices::resetGlobalInstance( new GlobalVarConfig(), 'quick' );
 662
 663 // Define a constant that indicates that the bootstrapping of the service locator
 664 // is complete.
 665 define( 'MW_SERVICE_BOOTSTRAP_COMPLETE', 1 );
 666
 667 MWExceptionHandler::installHandler();
 668
 669 // T48998: Bail out early if $wgArticlePath is non-absolute
 670 foreach ( [ 'wgArticlePath', 'wgVariantArticlePath' ] as $varName ) {
 671         if ( $$varName && !preg_match( '/^(https?:\/\/|\/)/', $$varName ) ) {
 672                 throw new FatalError(
 673                         "If you use a relative URL for \$$varName, it must start " .
 674                         'with a slash (<code>/</code>).<br><br>See ' .
 675                         "<a href=\"https://www.mediawiki.org/wiki/Manual:\$$varName\">" .
 676                         "https://www.mediawiki.org/wiki/Manual:\$$varName</a>."
 677                 );
 678         }
 679 }
 680
 681 $ps_default2 = Profiler::instance()->scopedProfileIn( $fname . '-defaults2' );
 682
 683 if ( $wgCanonicalServer === false ) {
 684         $wgCanonicalServer = wfExpandUrl( $wgServer, PROTO_HTTP );
 685 }
 686
 687 // Set server name
 688 $serverParts = wfParseUrl( $wgCanonicalServer );
 689 if ( $wgServerName !== false ) {
 690         wfWarn( '$wgServerName should be derived from $wgCanonicalServer, '
 691                 . 'not customized. Overwriting $wgServerName.' );
 692 }
 693 $wgServerName = $serverParts['host'];
 694 unset( $serverParts );
 695
 696 // Set defaults for configuration variables
 697 // that are derived from the server name by default
 698 // Note: $wgEmergencyContact and $wgPasswordSender may be false or empty string (T104142)
 699 if ( !$wgEmergencyContact ) {
 700         $wgEmergencyContact = 'wikiadmin@' . $wgServerName;
 701 }
 702 if ( !$wgPasswordSender ) {
 703         $wgPasswordSender = 'apache@' . $wgServerName;
 704 }
 705 if ( !$wgNoReplyAddress ) {
 706         $wgNoReplyAddress = $wgPasswordSender;
 707 }
 708
 709 if ( $wgSecureLogin && substr( $wgServer, 0, 2 ) !== '//' ) {
 710         $wgSecureLogin = false;
 711         wfWarn( 'Secure login was enabled on a server that only supports '
 712                 . 'HTTP or HTTPS. Disabling secure login.' );
 713 }
 714
 715 $wgVirtualRestConfig['global']['domain'] = $wgCanonicalServer;
 716
 717 // Now that GlobalFunctions is loaded, set defaults that depend on it.
 718 if ( $wgTmpDirectory === false ) {
 719         $wgTmpDirectory = wfTempDir();
 720 }
 721
 722 // We don't use counters anymore. Left here for extensions still
 723 // expecting this to exist. Should be removed sometime 1.26 or later.
 724 if ( !isset( $wgDisableCounters ) ) {
 725         $wgDisableCounters = true;
 726 }
 727
 728 if ( $wgMainWANCache === false ) {
 729         // Setup a WAN cache from $wgMainCacheType with no relayer.
 730         // Sites using multiple datacenters can configure a relayer.
 731         $wgMainWANCache = 'mediawiki-main-default';
 732         $wgWANObjectCaches[$wgMainWANCache] = [
 733                 'class'    => WANObjectCache::class,
 734                 'cacheId'  => $wgMainCacheType
 735         ];
 736 }
 737
 738 if ( $wgSharedDB && $wgSharedTables ) {
 739         // Apply $wgSharedDB table aliases for the local LB (all non-foreign DB connections)
 740         MediaWikiServices::getInstance()->getDBLoadBalancer()->setTableAliases(
 741                 array_fill_keys(
 742                         $wgSharedTables,
 743                         [
 744                                 'dbname' => $wgSharedDB,
 745                                 'schema' => $wgSharedSchema,
 746                                 'prefix' => $wgSharedPrefix
 747                         ]
 748                 )
 749         );
 750 }
 751
 752 Profiler::instance()->scopedProfileOut( $ps_default2 );
 753
 754 $ps_misc = Profiler::instance()->scopedProfileIn( $fname . '-misc' );
 755
 756 // Raise the memory limit if it's too low
 757 // Note, this makes use of wfDebug, and thus should not be before
 758 // MWDebug::init() is called.
 759 wfMemoryLimit( $wgMemoryLimit );
 760
 761 /**
 762  * Set up the timezone, suppressing the pseudo-security warning in PHP 5.1+
 763  * that happens whenever you use a date function without the timezone being
 764  * explicitly set. Inspired by phpMyAdmin's treatment of the problem.
 765  */
 766 if ( is_null( $wgLocaltimezone ) ) {
 767         Wikimedia\suppressWarnings();
 768         $wgLocaltimezone = date_default_timezone_get();
 769         Wikimedia\restoreWarnings();
 770 }
 771
 772 date_default_timezone_set( $wgLocaltimezone );
 773 if ( is_null( $wgLocalTZoffset ) ) {
 774         $wgLocalTZoffset = date( 'Z' ) / 60;
 775 }
 776 // The part after the System| is ignored, but rest of MW fills it
 777 // out as the local offset.
 778 $wgDefaultUserOptions['timecorrection'] = "System|$wgLocalTZoffset";
 779
 780 if ( !$wgDBerrorLogTZ ) {
 781         $wgDBerrorLogTZ = $wgLocaltimezone;
 782 }
 783
 784 // Initialize the request object in $wgRequest
 785 $wgRequest = RequestContext::getMain()->getRequest(); // BackCompat
 786 // Set user IP/agent information for agent session consistency purposes
 787 $cpPosInfo = LBFactory::getCPInfoFromCookieValue(
 788         // The cookie has no prefix and is set by MediaWiki::preOutputCommit()
 789         $wgRequest->getCookie( 'cpPosIndex', '' ),
 790         // Mitigate broken client-side cookie expiration handling (T190082)
 791         time() - ChronologyProtector::POSITION_COOKIE_TTL
 792 );
 793 MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->setRequestInfo( [
 794         'IPAddress' => $wgRequest->getIP(),
 795         'UserAgent' => $wgRequest->getHeader( 'User-Agent' ),
 796         'ChronologyProtection' => $wgRequest->getHeader( 'MediaWiki-Chronology-Protection' ),
 797         'ChronologyPositionIndex' => $wgRequest->getInt( 'cpPosIndex', $cpPosInfo['index'] ),
 798         'ChronologyClientId' => $cpPosInfo['clientId']
 799                 ?? $wgRequest->getHeader( 'MediaWiki-Chronology-Client-Id' )
 800 ] );
 801 unset( $cpPosInfo );
 802 // Make sure that object caching does not undermine the ChronologyProtector improvements
 803 if ( $wgRequest->getCookie( 'UseDC', '' ) === 'master' ) {
 804         // The user is pinned to the primary DC, meaning that they made recent changes which should
 805         // be reflected in their subsequent web requests. Avoid the use of interim cache keys because
 806         // they use a blind TTL and could be stale if an object changes twice in a short time span.
 807         MediaWikiServices::getInstance()->getMainWANObjectCache()->useInterimHoldOffCaching( false );
 808 }
 809
 810 // Useful debug output
 811 if ( $wgCommandLineMode ) {
 812         if ( isset( $self ) ) {
 813                 wfDebug( "\n\nStart command line script $self\n" );
 814         }
 815 } else {
 816         $debug = "\n\nStart request {$wgRequest->getMethod()} {$wgRequest->getRequestURL()}\n";
 817         $debug .= "HTTP HEADERS:\n";
 818         foreach ( $wgRequest->getAllHeaders() as $name => $value ) {
 819                 $debug .= "$name: $value\n";
 820         }
 821         wfDebug( $debug );
 822 }
 823
 824 $wgMemc = ObjectCache::getLocalClusterInstance();
 825 $messageMemc = wfGetMessageCacheStorage();
 826
 827 wfDebugLog( 'caches',
 828         'cluster: ' . get_class( $wgMemc ) .
 829         ', WAN: ' . ( $wgMainWANCache === CACHE_NONE ? 'CACHE_NONE' : $wgMainWANCache ) .
 830         ', stash: ' . $wgMainStash .
 831         ', message: ' . get_class( $messageMemc ) .
 832         ', session: ' . get_class( ObjectCache::getInstance( $wgSessionCacheType ) )
 833 );
 834
 835 Profiler::instance()->scopedProfileOut( $ps_misc );
 836
 837 // Most of the config is out, some might want to run hooks here.
 838 Hooks::run( 'SetupAfterCache' );
 839
 840 $ps_globals = Profiler::instance()->scopedProfileIn( $fname . '-globals' );
 841
 842 /**
 843  * @var Language $wgContLang
 844  * @deprecated since 1.32, use the ContentLanguage service directly
 845  */
 846 $wgContLang = MediaWikiServices::getInstance()->getContentLanguage();
 847
 848 // Now that variant lists may be available...
 849 $wgRequest->interpolateTitle();
 850
 851 /**
 852  * @var MediaWiki\Session\SessionId|null $wgInitialSessionId The persistent
 853  * session ID (if any) loaded at startup
 854  */
 855 $wgInitialSessionId = null;
 856 if ( !defined( 'MW_NO_SESSION' ) && !$wgCommandLineMode ) {
 857         // If session.auto_start is there, we can't touch session name
 858         if ( $wgPHPSessionHandling !== 'disable' && !wfIniGetBool( 'session.auto_start' ) ) {
 859                 session_name( $wgSessionName ?: $wgCookiePrefix . '_session' );
 860         }
 861
 862         // Create the SessionManager singleton and set up our session handler,
 863         // unless we're specifically asked not to.
 864         if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) {
 865                 MediaWiki\Session\PHPSessionHandler::install(
 866                         MediaWiki\Session\SessionManager::singleton()
 867                 );
 868         }
 869
 870         // Initialize the session
 871         try {
 872                 $session = MediaWiki\Session\SessionManager::getGlobalSession();
 873         } catch ( OverflowException $ex ) {
 874                 if ( isset( $ex->sessionInfos ) && count( $ex->sessionInfos ) >= 2 ) {
 875                         // The exception is because the request had multiple possible
 876                         // sessions tied for top priority. Report this to the user.
 877                         $list = [];
 878                         foreach ( $ex->sessionInfos as $info ) {
 879                                 $list[] = $info->getProvider()->describe( $wgContLang );
 880                         }
 881                         $list = $wgContLang->listToText( $list );
 882                         throw new HttpError( 400,
 883                                 Message::newFromKey( 'sessionmanager-tie', $list )->inLanguage( $wgContLang )->plain()
 884                         );
 885                 }
 886
 887                 // Not the one we want, rethrow
 888                 throw $ex;
 889         }
 890
 891         if ( $session->isPersistent() ) {
 892                 $wgInitialSessionId = $session->getSessionId();
 893         }
 894
 895         $session->renew();
 896         if ( MediaWiki\Session\PHPSessionHandler::isEnabled() &&
 897                 ( $session->isPersistent() || $session->shouldRememberUser() ) &&
 898                 session_id() !== $session->getId()
 899         ) {
 900                 // Start the PHP-session for backwards compatibility
 901                 if ( session_id() !== '' ) {
 902                         wfDebugLog( 'session', 'PHP session {old_id} was already started, changing to {new_id}', 'all', [
 903                                 'old_id' => session_id(),
 904                                 'new_id' => $session->getId(),
 905                         ] );
 906                         session_write_close();
 907                 }
 908                 session_id( $session->getId() );
 909                 session_start();
 910         }
 911
 912         unset( $session );
 913 } else {
 914         // Even if we didn't set up a global Session, still install our session
 915         // handler unless specifically requested not to.
 916         if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) {
 917                 MediaWiki\Session\PHPSessionHandler::install(
 918                         MediaWiki\Session\SessionManager::singleton()
 919                 );
 920         }
 921 }
 922
 923 /**
 924  * @var User $wgUser
 925  */
 926 $wgUser = RequestContext::getMain()->getUser(); // BackCompat
 927
 928 /**
 929  * @var Language $wgLang
 930  */
 931 $wgLang = new StubUserLang;
 932
 933 /**
 934  * @var OutputPage $wgOut
 935  */
 936 $wgOut = RequestContext::getMain()->getOutput(); // BackCompat
 937
 938 /**
 939  * @var Parser $wgParser
 940  * @deprecated since 1.32, use MediaWikiServices::getInstance()->getParser() instead
 941  */
 942 $wgParser = new StubObject( 'wgParser', function () {
 943         return MediaWikiServices::getInstance()->getParser();
 944 } );
 945
 946 /**
 947  * @var Title $wgTitle
 948  */
 949 $wgTitle = null;
 950
 951 Profiler::instance()->scopedProfileOut( $ps_globals );
 952 $ps_extensions = Profiler::instance()->scopedProfileIn( $fname . '-extensions' );
 953
 954 // Extension setup functions
 955 // Entries should be added to this variable during the inclusion
 956 // of the extension file. This allows the extension to perform
 957 // any necessary initialisation in the fully initialised environment
 958 foreach ( $wgExtensionFunctions as $func ) {
 959         call_user_func( $func );
 960 }
 961
 962 // If the session user has a 0 id but a valid name, that means we need to
 963 // autocreate it.
 964 if ( !defined( 'MW_NO_SESSION' ) && !$wgCommandLineMode ) {
 965         $sessionUser = MediaWiki\Session\SessionManager::getGlobalSession()->getUser();
 966         if ( $sessionUser->getId() === 0 && User::isValidUserName( $sessionUser->getName() ) ) {
 967                 $res = MediaWiki\Auth\AuthManager::singleton()->autoCreateUser(
 968                         $sessionUser,
 969                         MediaWiki\Auth\AuthManager::AUTOCREATE_SOURCE_SESSION,
 970                         true
 971                 );
 972                 \MediaWiki\Logger\LoggerFactory::getInstance( 'authevents' )->info( 'Autocreation attempt', [
 973                         'event' => 'autocreate',
 974                         'status' => $res,
 975                 ] );
 976                 unset( $res );
 977         }
 978         unset( $sessionUser );
 979 }
 980
 981 if ( !$wgCommandLineMode ) {
 982         Pingback::schedulePingback();
 983 }
 984
 985 $wgFullyInitialised = true;
 986
 987 Profiler::instance()->scopedProfileOut( $ps_extensions );
 988 Profiler::instance()->scopedProfileOut( $ps_setup );