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| 1 | <?php |
| 2 | /** |
| 3 | * Base code for MediaWiki installer. |
| 4 | * |
| 5 | * DO NOT PATCH THIS FILE IF YOU NEED TO CHANGE INSTALLER BEHAVIOR IN YOUR PACKAGE! |
| 6 | * See mw-config/overrides/README for details. |
| 7 | * |
| 8 | * @license GPL-2.0-or-later |
| 9 | * @file |
| 10 | * @ingroup Installer |
| 11 | */ |
| 12 | |
| 13 | namespace MediaWiki\Installer; |
| 14 | |
| 15 | use Exception; |
| 16 | use GuzzleHttp\Psr7\Header; |
| 17 | use IntlChar; |
| 18 | use InvalidArgumentException; |
| 19 | use MediaWiki\Config\Config; |
| 20 | use MediaWiki\Config\GlobalVarConfig; |
| 21 | use MediaWiki\Config\HashConfig; |
| 22 | use MediaWiki\Config\MultiConfig; |
| 23 | use MediaWiki\Context\RequestContext; |
| 24 | use MediaWiki\HookContainer\HookContainer; |
| 25 | use MediaWiki\Installer\Task\TaskFactory; |
| 26 | use MediaWiki\Installer\Task\TaskList; |
| 27 | use MediaWiki\Installer\Task\TaskRunner; |
| 28 | use MediaWiki\Language\Language; |
| 29 | use MediaWiki\MainConfigNames; |
| 30 | use MediaWiki\MainConfigSchema; |
| 31 | use MediaWiki\MediaWikiServices; |
| 32 | use MediaWiki\Parser\Parser; |
| 33 | use MediaWiki\Parser\ParserOptions; |
| 34 | use MediaWiki\Registration\ExtensionDependencyError; |
| 35 | use MediaWiki\Registration\ExtensionRegistry; |
| 36 | use MediaWiki\Settings\SettingsBuilder; |
| 37 | use MediaWiki\Status\Status; |
| 38 | use MediaWiki\Title\Title; |
| 39 | use MediaWiki\User\User; |
| 40 | use MediaWiki\Utils\ExecutableFinder; |
| 41 | use MediaWiki\Utils\MWCryptRand; |
| 42 | use RuntimeException; |
| 43 | use StatusValue; |
| 44 | use Wikimedia\Message\MessageSpecifier; |
| 45 | use Wikimedia\ObjectCache\EmptyBagOStuff; |
| 46 | use Wikimedia\Services\ServiceDisabledException; |
| 47 | |
| 48 | /** |
| 49 | * The Installer helps admins create or upgrade their wiki. |
| 50 | * |
| 51 | * The installer classes are exposed through these human interfaces: |
| 52 | * |
| 53 | * - The `maintenance/install.php` script, backed by CliInstaller. |
| 54 | * - The `maintenance/update.php` script, backed by DatabaseUpdater. |
| 55 | * - The `mw-config/index.php` web entry point, backed by WebInstaller. |
| 56 | * |
| 57 | * @defgroup Installer Installer |
| 58 | */ |
| 59 | |
| 60 | /** |
| 61 | * Base installer class. |
| 62 | * |
| 63 | * This class provides the base for installation and update functionality |
| 64 | * for both MediaWiki core and extensions. |
| 65 | * |
| 66 | * @ingroup Installer |
| 67 | * @since 1.17 |
| 68 | */ |
| 69 | abstract class Installer { |
| 70 | |
| 71 | /** |
| 72 | * @var array |
| 73 | */ |
| 74 | protected $settings; |
| 75 | |
| 76 | /** |
| 77 | * List of detected DBs, access using getCompiledDBs(). |
| 78 | * |
| 79 | * @var string[] |
| 80 | */ |
| 81 | protected $compiledDBs; |
| 82 | |
| 83 | /** |
| 84 | * Cached DB installer instances, access using getDBInstaller(). |
| 85 | * |
| 86 | * @var array<string,DatabaseInstaller> |
| 87 | */ |
| 88 | protected $dbInstallers = []; |
| 89 | |
| 90 | /** |
| 91 | * Minimum memory size in MiB. |
| 92 | * |
| 93 | * @var int |
| 94 | */ |
| 95 | protected $minMemorySize = 50; |
| 96 | |
| 97 | /** |
| 98 | * Cached Title, used by parse(). |
| 99 | * |
| 100 | * @var Title |
| 101 | */ |
| 102 | protected $parserTitle; |
| 103 | |
| 104 | /** |
| 105 | * Cached ParserOptions, used by parse(). |
| 106 | * |
| 107 | * @var ParserOptions |
| 108 | */ |
| 109 | protected $parserOptions; |
| 110 | |
| 111 | /** |
| 112 | * Known database types. These correspond to the class names <type>Installer, |
| 113 | * and are also MediaWiki database types valid for $wgDBtype. |
| 114 | * |
| 115 | * To add a new type, create a <type>Installer class and a Database<type> |
| 116 | * class, and add a config-type-<type> message to MessagesEn.php. |
| 117 | * |
| 118 | * @var array |
| 119 | */ |
| 120 | protected static $dbTypes = [ |
| 121 | 'mysql', |
| 122 | 'postgres', |
| 123 | 'sqlite', |
| 124 | ]; |
| 125 | |
| 126 | /** |
| 127 | * A list of environment check methods called by doEnvironmentChecks(). |
| 128 | * These may output warnings using showMessage(), and/or abort the |
| 129 | * installation process by returning false. |
| 130 | * |
| 131 | * In the WebInstaller, variables set here will be saved to the session and |
| 132 | * will be available to later pages in the same session. But if you need |
| 133 | * dynamic defaults to be available before the welcome page completes, say |
| 134 | * in the initial CSS request, add something to getDefaultSettings(). |
| 135 | * |
| 136 | * @var array |
| 137 | */ |
| 138 | protected $envChecks = [ |
| 139 | 'envCheckLibicu', |
| 140 | 'envCheckDB', |
| 141 | 'envCheckPCRE', |
| 142 | 'envCheckMemory', |
| 143 | 'envCheckCache', |
| 144 | 'envCheckModSecurity', |
| 145 | 'envCheckDiff3', |
| 146 | 'envCheckGraphics', |
| 147 | 'envCheckGit', |
| 148 | 'envCheckServer', |
| 149 | 'envCheckPath', |
| 150 | 'envCheckUploadsDirectory', |
| 151 | 'envCheckUploadsServerResponse', |
| 152 | 'envCheck64Bit', |
| 153 | ]; |
| 154 | |
| 155 | /** |
| 156 | * MediaWiki configuration globals that will eventually be passed through |
| 157 | * to LocalSettings.php. The names only are given here, the defaults |
| 158 | * typically come from config-schema.yaml. |
| 159 | */ |
| 160 | private const DEFAULT_VAR_NAMES = [ |
| 161 | MainConfigNames::Sitename, |
| 162 | MainConfigNames::PasswordSender, |
| 163 | MainConfigNames::LanguageCode, |
| 164 | MainConfigNames::Localtimezone, |
| 165 | MainConfigNames::RightsIcon, |
| 166 | MainConfigNames::RightsText, |
| 167 | MainConfigNames::RightsUrl, |
| 168 | MainConfigNames::EnableEmail, |
| 169 | MainConfigNames::EnableUserEmail, |
| 170 | MainConfigNames::EnotifUserTalk, |
| 171 | MainConfigNames::EnotifWatchlist, |
| 172 | MainConfigNames::EmailAuthentication, |
| 173 | MainConfigNames::DBname, |
| 174 | MainConfigNames::DBtype, |
| 175 | MainConfigNames::Diff3, |
| 176 | MainConfigNames::ImageMagickConvertCommand, |
| 177 | MainConfigNames::GitBin, |
| 178 | MainConfigNames::ScriptPath, |
| 179 | MainConfigNames::MetaNamespace, |
| 180 | MainConfigNames::DeletedDirectory, |
| 181 | MainConfigNames::EnableUploads, |
| 182 | MainConfigNames::SecretKey, |
| 183 | MainConfigNames::UseInstantCommons, |
| 184 | MainConfigNames::UpgradeKey, |
| 185 | MainConfigNames::DefaultSkin, |
| 186 | MainConfigNames::Pingback, |
| 187 | MainConfigNames::InstallerInitialPages, |
| 188 | ]; |
| 189 | |
| 190 | /** |
| 191 | * Variables that are stored alongside globals, and are used for any |
| 192 | * configuration of the installation process aside from the MediaWiki |
| 193 | * configuration. Map of names to defaults. |
| 194 | * |
| 195 | * @var array |
| 196 | */ |
| 197 | protected $internalDefaults = [ |
| 198 | '_UserLang' => 'en', |
| 199 | '_Environment' => false, |
| 200 | '_RaiseMemory' => false, |
| 201 | '_UpgradeDone' => false, |
| 202 | '_InstallDone' => false, |
| 203 | '_Caches' => [], |
| 204 | '_InstallPassword' => '', |
| 205 | '_SameAccount' => true, |
| 206 | '_CreateDBAccount' => false, |
| 207 | '_NamespaceType' => 'site-name', |
| 208 | '_AdminName' => '', // will be set later, when the user selects language |
| 209 | '_AdminPassword' => '', |
| 210 | '_AdminPasswordConfirm' => '', |
| 211 | '_AdminEmail' => '', |
| 212 | '_Subscribe' => false, |
| 213 | '_SkipOptional' => 'continue', |
| 214 | '_RightsProfile' => 'wiki', |
| 215 | '_LicenseCode' => 'none', |
| 216 | '_CCDone' => false, |
| 217 | '_Extensions' => [], |
| 218 | '_Skins' => [], |
| 219 | '_MemCachedServers' => '', |
| 220 | '_UpgradeKeySupplied' => false, |
| 221 | '_ExistingDBSettings' => false, |
| 222 | '_LogoWordmark' => '', |
| 223 | '_LogoWordmarkWidth' => 119, |
| 224 | '_LogoWordmarkHeight' => 18, |
| 225 | // Single quotes are intentional, LocalSettingsGenerator must output this unescaped. |
| 226 | '_Logo1x' => '$wgResourceBasePath/resources/assets/change-your-logo.svg', |
| 227 | '_LogoIcon' => '$wgResourceBasePath/resources/assets/change-your-logo-icon.svg', |
| 228 | '_LogoTagline' => '', |
| 229 | '_LogoTaglineWidth' => 117, |
| 230 | '_LogoTaglineHeight' => 13, |
| 231 | '_WithDevelopmentSettings' => false, |
| 232 | 'wgAuthenticationTokenVersion' => 1, |
| 233 | ]; |
| 234 | |
| 235 | /** |
| 236 | * Extra steps for installation, for things like DatabaseInstallers to modify |
| 237 | * |
| 238 | * @var array |
| 239 | */ |
| 240 | protected $extraInstallSteps = []; |
| 241 | |
| 242 | /** |
| 243 | * Known object cache types and the functions used to test for their existence. |
| 244 | * |
| 245 | * @var array |
| 246 | */ |
| 247 | protected $objectCaches = [ |
| 248 | 'apcu' => 'apcu_fetch', |
| 249 | ]; |
| 250 | |
| 251 | /** |
| 252 | * User rights profiles. |
| 253 | * |
| 254 | * @var array |
| 255 | */ |
| 256 | public $rightsProfiles = [ |
| 257 | 'wiki' => [], |
| 258 | 'no-anon' => [ |
| 259 | '*' => [ 'edit' => false ] |
| 260 | ], |
| 261 | 'fishbowl' => [ |
| 262 | '*' => [ |
| 263 | 'createaccount' => false, |
| 264 | 'edit' => false, |
| 265 | ], |
| 266 | ], |
| 267 | 'private' => [ |
| 268 | '*' => [ |
| 269 | 'createaccount' => false, |
| 270 | 'edit' => false, |
| 271 | 'read' => false, |
| 272 | ], |
| 273 | ], |
| 274 | ]; |
| 275 | |
| 276 | /** |
| 277 | * License types. |
| 278 | * |
| 279 | * @var array |
| 280 | */ |
| 281 | public $licenses = [ |
| 282 | 'cc-by' => [ |
| 283 | 'url' => 'https://creativecommons.org/licenses/by/4.0/', |
| 284 | 'icon' => '$wgResourceBasePath/resources/assets/licenses/cc-by.png', |
| 285 | ], |
| 286 | 'cc-by-sa' => [ |
| 287 | 'url' => 'https://creativecommons.org/licenses/by-sa/4.0/', |
| 288 | 'icon' => '$wgResourceBasePath/resources/assets/licenses/cc-by-sa.png', |
| 289 | ], |
| 290 | 'cc-by-nc-sa' => [ |
| 291 | 'url' => 'https://creativecommons.org/licenses/by-nc-sa/4.0/', |
| 292 | 'icon' => '$wgResourceBasePath/resources/assets/licenses/cc-by-nc-sa.png', |
| 293 | ], |
| 294 | 'cc-0' => [ |
| 295 | 'url' => 'https://creativecommons.org/publicdomain/zero/1.0/', |
| 296 | 'icon' => '$wgResourceBasePath/resources/assets/licenses/cc-0.png', |
| 297 | ], |
| 298 | 'gfdl' => [ |
| 299 | 'url' => 'https://www.gnu.org/copyleft/fdl.html', |
| 300 | 'icon' => '$wgResourceBasePath/resources/assets/licenses/gnu-fdl.png', |
| 301 | ], |
| 302 | 'none' => [ |
| 303 | 'url' => '', |
| 304 | 'icon' => '', |
| 305 | 'text' => '' |
| 306 | ], |
| 307 | ]; |
| 308 | |
| 309 | /** |
| 310 | * @var HookContainer|null |
| 311 | */ |
| 312 | protected $autoExtensionHookContainer; |
| 313 | protected array $virtualDomains = []; |
| 314 | |
| 315 | /** @var TaskFactory|null */ |
| 316 | private $taskFactory; |
| 317 | |
| 318 | /** |
| 319 | * Display a short neutral message |
| 320 | * |
| 321 | * @param string|MessageSpecifier $msg String of wikitext that will be converted |
| 322 | * to HTML, or interface message that will be parsed. |
| 323 | * @param string|int|float ...$params Message parameters, same as wfMessage(). |
| 324 | */ |
| 325 | abstract public function showMessage( $msg, ...$params ); |
| 326 | |
| 327 | /** |
| 328 | * Display a success message |
| 329 | * |
| 330 | * @param string|MessageSpecifier $msg String of wikitext that will be converted |
| 331 | * to HTML, or interface message that will be parsed. |
| 332 | * @param string|int|float ...$params Message parameters, same as wfMessage(). |
| 333 | */ |
| 334 | abstract public function showSuccess( $msg, ...$params ); |
| 335 | |
| 336 | /** |
| 337 | * Display a warning message |
| 338 | * |
| 339 | * @param string|MessageSpecifier $msg String of wikitext that will be converted |
| 340 | * to HTML, or interface message that will be parsed. |
| 341 | * @param string|int|float ...$params Message parameters, same as wfMessage(). |
| 342 | */ |
| 343 | abstract public function showWarning( $msg, ...$params ); |
| 344 | |
| 345 | /** |
| 346 | * Display an error message |
| 347 | * |
| 348 | * Avoid error fatigue in the installer. Use this only if something the |
| 349 | * user expects has failed and requires intervention to continue. |
| 350 | * If something non-essential failed that can be continued past with |
| 351 | * no action, use a warning instead. |
| 352 | * |
| 353 | * @param string|MessageSpecifier $msg |
| 354 | * @param string|int|float ...$params Message parameters |
| 355 | */ |
| 356 | abstract public function showError( $msg, ...$params ); |
| 357 | |
| 358 | /** |
| 359 | * Show a message to the installing user by using a Status object |
| 360 | */ |
| 361 | abstract public function showStatusMessage( StatusValue $status ); |
| 362 | |
| 363 | /** |
| 364 | * Constructs a Config object that contains configuration settings that should be |
| 365 | * overwritten for the installation process. |
| 366 | * |
| 367 | * @since 1.27 |
| 368 | * |
| 369 | * @param Config $baseConfig |
| 370 | * |
| 371 | * @return Config The config to use during installation. |
| 372 | */ |
| 373 | public static function getInstallerConfig( Config $baseConfig ) { |
| 374 | $configOverrides = new HashConfig(); |
| 375 | |
| 376 | // disable (problematic) object cache types explicitly, preserving all other (working) ones |
| 377 | // bug T113843 |
| 378 | $emptyCache = [ 'class' => EmptyBagOStuff::class ]; |
| 379 | |
| 380 | $objectCaches = [ |
| 381 | CACHE_NONE => $emptyCache, |
| 382 | CACHE_DB => $emptyCache, |
| 383 | CACHE_ANYTHING => $emptyCache, |
| 384 | CACHE_MEMCACHED => $emptyCache, |
| 385 | ] + $baseConfig->get( MainConfigNames::ObjectCaches ); |
| 386 | |
| 387 | $configOverrides->set( MainConfigNames::ObjectCaches, $objectCaches ); |
| 388 | |
| 389 | $installerConfig = new MultiConfig( [ $configOverrides, $baseConfig ] ); |
| 390 | |
| 391 | // make sure we use the installer config as the main config |
| 392 | $configRegistry = $baseConfig->get( MainConfigNames::ConfigRegistry ); |
| 393 | $configRegistry['main'] = static function () use ( $installerConfig ) { |
| 394 | return $installerConfig; |
| 395 | }; |
| 396 | |
| 397 | $configOverrides->set( MainConfigNames::ConfigRegistry, $configRegistry ); |
| 398 | |
| 399 | return $installerConfig; |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Constructor, always call this from child classes. |
| 404 | */ |
| 405 | public function __construct() { |
| 406 | $defaultConfig = new GlobalVarConfig(); // all the defaults from config-schema.yaml. |
| 407 | $installerConfig = self::getInstallerConfig( $defaultConfig ); |
| 408 | |
| 409 | // Disable all storage services, since we don't have any configuration yet! |
| 410 | $lang = $this->getVar( '_UserLang', 'en' ); |
| 411 | $services = self::disableStorage( $installerConfig, $lang ); |
| 412 | |
| 413 | // Set up ParserOptions |
| 414 | $user = RequestContext::getMain()->getUser(); |
| 415 | $this->parserOptions = new ParserOptions( $user ); // language will be wrong :( |
| 416 | $this->parserOptions->setSuppressSectionEditLinks(); |
| 417 | // Don't try to access DB before user language is initialised |
| 418 | $this->setParserLanguage( $services->getLanguageFactory()->getLanguage( 'en' ) ); |
| 419 | |
| 420 | $this->settings = $this->getDefaultSettings(); |
| 421 | |
| 422 | $this->compiledDBs = []; |
| 423 | foreach ( self::getDBTypes() as $type ) { |
| 424 | $installer = $this->getDBInstaller( $type ); |
| 425 | |
| 426 | if ( !$installer->isCompiled() ) { |
| 427 | continue; |
| 428 | } |
| 429 | $this->compiledDBs[] = $type; |
| 430 | } |
| 431 | |
| 432 | $this->parserTitle = Title::newFromText( 'Installer' ); |
| 433 | } |
| 434 | |
| 435 | private function getDefaultSettings(): array { |
| 436 | global $wgLocaltimezone; |
| 437 | |
| 438 | $ret = $this->internalDefaults; |
| 439 | |
| 440 | foreach ( self::DEFAULT_VAR_NAMES as $name ) { |
| 441 | $var = "wg{$name}"; |
| 442 | $ret[$var] = MainConfigSchema::getDefaultValue( $name ); |
| 443 | } |
| 444 | |
| 445 | // Set $wgLocaltimezone to the value of the global, which SetupDynamicConfig.php will have |
| 446 | // set to something that is a valid timezone. |
| 447 | $ret['wgLocaltimezone'] = $wgLocaltimezone; |
| 448 | |
| 449 | // Detect $wgServer |
| 450 | $server = $this->envGetDefaultServer(); |
| 451 | if ( $server !== null ) { |
| 452 | $ret['wgServer'] = $server; |
| 453 | } |
| 454 | |
| 455 | // Detect $IP |
| 456 | $ret['IP'] = MW_INSTALL_PATH; |
| 457 | |
| 458 | return $this->getDefaultSettingsOverrides() |
| 459 | + $this->generateKeys() |
| 460 | + $this->detectWebPaths() |
| 461 | + $ret; |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * This is overridden by the web installer to provide the detected wgScriptPath |
| 466 | * |
| 467 | * @return array |
| 468 | */ |
| 469 | protected function detectWebPaths() { |
| 470 | return []; |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * Override this in a subclass to override the default settings |
| 475 | * |
| 476 | * @since 1.44 |
| 477 | * @return array |
| 478 | */ |
| 479 | protected function getDefaultSettingsOverrides() { |
| 480 | return []; |
| 481 | } |
| 482 | |
| 483 | /** |
| 484 | * Generate $wgSecretKey and $wgUpgradeKey. |
| 485 | * |
| 486 | * @return string[] |
| 487 | */ |
| 488 | private function generateKeys() { |
| 489 | $keyLengths = [ |
| 490 | 'wgSecretKey' => 64, |
| 491 | 'wgUpgradeKey' => 16, |
| 492 | ]; |
| 493 | |
| 494 | $keys = []; |
| 495 | foreach ( $keyLengths as $name => $length ) { |
| 496 | $keys[$name] = MWCryptRand::generateHex( $length ); |
| 497 | } |
| 498 | return $keys; |
| 499 | } |
| 500 | |
| 501 | /** |
| 502 | * Reset the global service container and associated global state, |
| 503 | * disabling storage, to support pre-installation operation. |
| 504 | * |
| 505 | * @param Config $config Config override |
| 506 | * @param string $lang Language code |
| 507 | * @return MediaWikiServices |
| 508 | */ |
| 509 | public static function disableStorage( Config $config, string $lang ) { |
| 510 | global $wgObjectCaches; |
| 511 | |
| 512 | // Reset all services and inject config overrides. |
| 513 | // Reload to re-enable Rdbms, in case of any prior MediaWikiServices::disableStorage() |
| 514 | MediaWikiServices::resetGlobalInstance( $config, 'reload' ); |
| 515 | |
| 516 | $mwServices = MediaWikiServices::getInstance(); |
| 517 | $mwServices->disableStorage(); |
| 518 | |
| 519 | // Disable i18n cache |
| 520 | $mwServices->getLocalisationCache()->disableBackend(); |
| 521 | |
| 522 | // Set a fake user. |
| 523 | // Note that this will reset the context's language, |
| 524 | // so set the user before setting the language. |
| 525 | $user = User::newFromId( 0 ); |
| 526 | RequestContext::getMain()->setUser( $user ); |
| 527 | |
| 528 | // Don't attempt to load user language options (T126177) |
| 529 | // This will be overridden in the web installer with the user-specified language |
| 530 | // No more $wgLang, no longer read in MediaWiki core |
| 531 | // (T241638, T261081) |
| 532 | RequestContext::getMain()->setLanguage( $lang ); |
| 533 | |
| 534 | // Disable object cache (otherwise CACHE_ANYTHING will try CACHE_DB and |
| 535 | // SqlBagOStuff will then throw since we just disabled database connections) |
| 536 | $wgObjectCaches = $mwServices->getMainConfig()->get( MainConfigNames::ObjectCaches ); |
| 537 | return $mwServices; |
| 538 | } |
| 539 | |
| 540 | /** |
| 541 | * Get a list of known DB types. |
| 542 | * |
| 543 | * @return array |
| 544 | */ |
| 545 | public static function getDBTypes() { |
| 546 | return self::$dbTypes; |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * Do initial checks of the PHP environment. Set variables according to |
| 551 | * the observed environment. |
| 552 | * |
| 553 | * It's possible that this may be called under the CLI SAPI, not the SAPI |
| 554 | * that the wiki will primarily run under. In that case, the subclass should |
| 555 | * initialise variables such as wgScriptPath, before calling this function. |
| 556 | * |
| 557 | * It can already be assumed that a supported PHP version is in use. Under |
| 558 | * the web subclass, it can also be assumed that sessions are working. |
| 559 | * |
| 560 | * @return StatusValue |
| 561 | */ |
| 562 | public function doEnvironmentChecks() { |
| 563 | // PHP version has already been checked by entry scripts |
| 564 | // Show message here for information purposes |
| 565 | $this->showMessage( 'config-env-php', PHP_VERSION ); |
| 566 | |
| 567 | $good = true; |
| 568 | foreach ( $this->envChecks as $check ) { |
| 569 | $status = $this->$check(); |
| 570 | if ( $status === false ) { |
| 571 | $good = false; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | $this->setVar( '_Environment', $good ); |
| 576 | |
| 577 | return $good ? StatusValue::newGood() : StatusValue::newFatal( 'config-env-bad' ); |
| 578 | } |
| 579 | |
| 580 | /** |
| 581 | * Set a MW configuration variable, or internal installer configuration variable. |
| 582 | * |
| 583 | * @param string $name |
| 584 | * @param mixed $value |
| 585 | */ |
| 586 | public function setVar( $name, $value ) { |
| 587 | $this->settings[$name] = $value; |
| 588 | } |
| 589 | |
| 590 | /** |
| 591 | * Get an MW configuration variable, or internal installer configuration variable. |
| 592 | * The defaults come from MainConfigSchema. |
| 593 | * Installer variables are typically prefixed by an underscore. |
| 594 | * |
| 595 | * @param string $name |
| 596 | * @param mixed|null $default |
| 597 | * |
| 598 | * @return mixed |
| 599 | */ |
| 600 | public function getVar( $name, $default = null ) { |
| 601 | return $this->settings[$name] ?? $default; |
| 602 | } |
| 603 | |
| 604 | /** |
| 605 | * Get a list of DBs supported by current PHP setup |
| 606 | * |
| 607 | * @return string[] |
| 608 | */ |
| 609 | public function getCompiledDBs() { |
| 610 | return $this->compiledDBs; |
| 611 | } |
| 612 | |
| 613 | /** |
| 614 | * Get the DatabaseInstaller class name for this type |
| 615 | * |
| 616 | * @param string $type database type ($wgDBtype) |
| 617 | * @return class-string<DatabaseInstaller> Class name |
| 618 | * @since 1.30 |
| 619 | */ |
| 620 | public static function getDBInstallerClass( $type ) { |
| 621 | return '\\MediaWiki\\Installer\\' . ucfirst( $type ) . 'Installer'; |
| 622 | } |
| 623 | |
| 624 | /** |
| 625 | * Get an instance of DatabaseInstaller for the specified DB type. |
| 626 | * |
| 627 | * @param string|false $type DB installer for which is needed, false to use default. |
| 628 | * |
| 629 | * @return DatabaseInstaller |
| 630 | */ |
| 631 | public function getDBInstaller( $type = false ) { |
| 632 | if ( !$type ) { |
| 633 | $type = $this->getVar( 'wgDBtype' ); |
| 634 | } |
| 635 | |
| 636 | $type = strtolower( $type ); |
| 637 | |
| 638 | if ( !isset( $this->dbInstallers[$type] ) ) { |
| 639 | $class = self::getDBInstallerClass( $type ); |
| 640 | $this->dbInstallers[$type] = new $class( $this ); |
| 641 | } |
| 642 | |
| 643 | return $this->dbInstallers[$type]; |
| 644 | } |
| 645 | |
| 646 | /** |
| 647 | * Determine if LocalSettings.php exists. If it does, return its variables. |
| 648 | * |
| 649 | * @return array|false |
| 650 | */ |
| 651 | public static function getExistingLocalSettings() { |
| 652 | $IP = wfDetectInstallPath(); |
| 653 | |
| 654 | // You might be wondering why this is here. Well if you don't do this |
| 655 | // then some poorly-formed extensions try to call their own classes |
| 656 | // after immediately registering them. We really need to get extension |
| 657 | // registration out of the global scope and into a real format. |
| 658 | // @see https://phabricator.wikimedia.org/T69440 |
| 659 | global $wgAutoloadClasses; |
| 660 | $wgAutoloadClasses = []; |
| 661 | |
| 662 | // LocalSettings.php should not call functions, except wfLoadSkin/wfLoadExtensions |
| 663 | // Define the required globals here, to ensure, the functions can do it work correctly. |
| 664 | // phpcs:ignore MediaWiki.VariableAnalysis.UnusedGlobalVariables |
| 665 | global $wgExtensionDirectory, $wgStyleDirectory; |
| 666 | |
| 667 | // This will also define MW_CONFIG_FILE |
| 668 | $lsFile = wfDetectLocalSettingsFile( $IP ); |
| 669 | // phpcs:ignore Generic.PHP.NoSilencedErrors |
| 670 | $lsExists = @file_exists( $lsFile ); |
| 671 | |
| 672 | if ( !$lsExists ) { |
| 673 | return false; |
| 674 | } |
| 675 | |
| 676 | if ( !str_ends_with( $lsFile, '.php' ) ) { |
| 677 | throw new RuntimeException( |
| 678 | 'The installer cannot yet handle non-php settings files: ' . $lsFile . '. ' . |
| 679 | 'Use `php maintenance/run.php update` to update an existing installation.' |
| 680 | ); |
| 681 | } |
| 682 | unset( $lsExists ); |
| 683 | |
| 684 | // Extract the defaults into the current scope |
| 685 | foreach ( MainConfigSchema::listDefaultValues( 'wg' ) as $var => $value ) { |
| 686 | $$var = $value; |
| 687 | } |
| 688 | |
| 689 | $wgExtensionDirectory = "$IP/extensions"; |
| 690 | $wgStyleDirectory = "$IP/skins"; |
| 691 | |
| 692 | // Non-config globals available to LocalSettings |
| 693 | // |
| 694 | // NOTE: Keep in sync with LocalSettingsLoader, normally called from Setup.php |
| 695 | // |
| 696 | // phpcs:ignore MediaWiki.VariableAnalysis.UnusedGlobalVariables, MediaWiki.Usage.DeprecatedGlobalVariables |
| 697 | global $wgCommandLineMode, $wgConf; |
| 698 | |
| 699 | // NOTE: To support YAML settings files, this needs to start using SettingsBuilder. |
| 700 | // However, as of 1.38, YAML settings files are still experimental and |
| 701 | // SettingsBuilder is still unstable. For now, the installer will fail if |
| 702 | // the existing settings file is not PHP. The updater should still work though. |
| 703 | // NOTE: When adding support for YAML settings file, all references to LocalSettings.php |
| 704 | // in localisation messages need to be replaced. |
| 705 | // NOTE: This assumes simple variable assignments. More complex setups may involve |
| 706 | // settings coming from sub-required and/or functions that assign globals |
| 707 | // directly. This is fine here because this isn't used as the "real" include. |
| 708 | // It is only used for reading out a small set of variables that the installer |
| 709 | // validates and/or displays. |
| 710 | require $lsFile; |
| 711 | |
| 712 | return get_defined_vars(); |
| 713 | } |
| 714 | |
| 715 | /** |
| 716 | * Get a fake password for sending back to the user in HTML. |
| 717 | * This is a security mechanism to avoid compromise of the password in the |
| 718 | * event of session ID compromise. |
| 719 | * |
| 720 | * @param string $realPassword |
| 721 | * |
| 722 | * @return string |
| 723 | */ |
| 724 | public function getFakePassword( $realPassword ) { |
| 725 | return str_repeat( '*', strlen( $realPassword ) ); |
| 726 | } |
| 727 | |
| 728 | /** |
| 729 | * Set a variable which stores a password, except if the new value is a |
| 730 | * fake password in which case leave it as it is. |
| 731 | * |
| 732 | * @param string $name |
| 733 | * @param mixed $value |
| 734 | */ |
| 735 | public function setPassword( $name, $value ) { |
| 736 | if ( !preg_match( '/^\*+$/', $value ) ) { |
| 737 | $this->setVar( $name, $value ); |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | /** |
| 742 | * Convert wikitext $text to HTML. |
| 743 | * |
| 744 | * This is potentially error prone since many parser features require a complete |
| 745 | * installed MW database. The solution is to just not use those features when you |
| 746 | * write your messages. This appears to work well enough. Basic formatting and |
| 747 | * external links work just fine. |
| 748 | * |
| 749 | * But in case a translator decides to throw in a "#ifexist" or internal link or |
| 750 | * whatever, this function is guarded to catch the attempted DB access and to present |
| 751 | * some fallback text. |
| 752 | * |
| 753 | * @param string $text |
| 754 | * @param bool $lineStart |
| 755 | * @return string |
| 756 | */ |
| 757 | public function parse( $text, $lineStart = false ) { |
| 758 | $parser = MediaWikiServices::getInstance()->getParser(); |
| 759 | |
| 760 | try { |
| 761 | $out = $parser->parse( $text, $this->parserTitle, $this->parserOptions, $lineStart ); |
| 762 | $pipeline = MediaWikiServices::getInstance()->getDefaultOutputPipeline(); |
| 763 | // TODO T371008 consider if using the Content framework makes sense instead of creating the pipeline |
| 764 | $html = $pipeline->run( $out, $this->parserOptions, [ |
| 765 | 'unwrap' => true, |
| 766 | ] )->getContentHolderText(); |
| 767 | $html = Parser::stripOuterParagraph( $html ); |
| 768 | } catch ( ServiceDisabledException ) { |
| 769 | $html = '<!--DB access attempted during parse--> ' . htmlspecialchars( $text ); |
| 770 | } |
| 771 | |
| 772 | return $html; |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * @return ParserOptions |
| 777 | */ |
| 778 | public function getParserOptions() { |
| 779 | return $this->parserOptions; |
| 780 | } |
| 781 | |
| 782 | public function disableLinkPopups() { |
| 783 | // T317647: This ParserOptions method is deprecated; we should be |
| 784 | // updating ExternalLinkTarget in the Configuration instead. |
| 785 | $this->parserOptions->setExternalLinkTarget( false ); |
| 786 | } |
| 787 | |
| 788 | public function restoreLinkPopups() { |
| 789 | // T317647: This ParserOptions method is deprecated; we should be |
| 790 | // updating ExternalLinkTarget in the Configuration instead. |
| 791 | global $wgExternalLinkTarget; |
| 792 | $this->parserOptions->setExternalLinkTarget( $wgExternalLinkTarget ); |
| 793 | } |
| 794 | |
| 795 | /** |
| 796 | * Environment check for DB types. |
| 797 | * @return bool |
| 798 | */ |
| 799 | protected function envCheckDB() { |
| 800 | /** @var string|null $dbType The user-specified database type */ |
| 801 | $dbType = $this->getVar( 'wgDBtype' ); |
| 802 | |
| 803 | $allNames = []; |
| 804 | |
| 805 | // Messages: config-type-mysql, config-type-postgres, config-type-sqlite |
| 806 | foreach ( self::getDBTypes() as $name ) { |
| 807 | $allNames[] = wfMessage( "config-type-$name" )->text(); |
| 808 | } |
| 809 | |
| 810 | $databases = $this->getCompiledDBs(); |
| 811 | |
| 812 | $databases = array_flip( $databases ); |
| 813 | $ok = true; |
| 814 | foreach ( $databases as $db => $_ ) { |
| 815 | $installer = $this->getDBInstaller( $db ); |
| 816 | $status = $installer->checkPrerequisites(); |
| 817 | if ( !$status->isGood() ) { |
| 818 | if ( !$this instanceof WebInstaller && $db === $dbType ) { |
| 819 | // Strictly check the key database type instead of just outputting message |
| 820 | // Note: No perform this check run from the web installer, since this method always called by |
| 821 | // the welcome page under web installation, so $dbType will always be 'mysql' |
| 822 | $ok = false; |
| 823 | } |
| 824 | $this->showStatusMessage( $status ); |
| 825 | unset( $databases[$db] ); |
| 826 | } |
| 827 | } |
| 828 | $databases = array_flip( $databases ); |
| 829 | if ( !$databases ) { |
| 830 | $lang = RequestContext::getMain()->getLanguage(); |
| 831 | $this->showError( 'config-no-db', $lang->commaList( $allNames ), count( $allNames ) ); |
| 832 | return false; |
| 833 | } |
| 834 | return $ok; |
| 835 | } |
| 836 | |
| 837 | /** |
| 838 | * Check for known PCRE-related compatibility issues. |
| 839 | * |
| 840 | * @note We don't bother checking for Unicode support here. If it were |
| 841 | * missing, the parser would probably throw an exception before the |
| 842 | * result of this check is shown to the user. |
| 843 | * |
| 844 | * @return bool |
| 845 | */ |
| 846 | protected function envCheckPCRE() { |
| 847 | // PCRE2 must be compiled using NEWLINE_DEFAULT other than 4 (ANY); |
| 848 | // otherwise, it will misidentify UTF-8 trailing byte value 0x85 |
| 849 | // as a line ending character when in non-UTF mode. |
| 850 | if ( preg_match( '/^b.*c$/', 'bÄ…c' ) === 0 ) { |
| 851 | $this->showError( 'config-pcre-invalid-newline' ); |
| 852 | return false; |
| 853 | } |
| 854 | return true; |
| 855 | } |
| 856 | |
| 857 | /** |
| 858 | * Environment check for available memory. |
| 859 | * @return bool |
| 860 | */ |
| 861 | protected function envCheckMemory() { |
| 862 | $limit = ini_get( 'memory_limit' ); |
| 863 | |
| 864 | if ( !$limit || $limit == -1 ) { |
| 865 | return true; |
| 866 | } |
| 867 | |
| 868 | $n = wfShorthandToInteger( $limit ); |
| 869 | |
| 870 | if ( $n < $this->minMemorySize * 1024 * 1024 ) { |
| 871 | $newLimit = "{$this->minMemorySize}M"; |
| 872 | |
| 873 | if ( ini_set( "memory_limit", $newLimit ) === false ) { |
| 874 | $this->showMessage( 'config-memory-bad', $limit ); |
| 875 | } else { |
| 876 | $this->showMessage( 'config-memory-raised', $limit, $newLimit ); |
| 877 | $this->setVar( '_RaiseMemory', true ); |
| 878 | } |
| 879 | } |
| 880 | |
| 881 | return true; |
| 882 | } |
| 883 | |
| 884 | /** |
| 885 | * Environment check for compiled object cache types. |
| 886 | */ |
| 887 | protected function envCheckCache() { |
| 888 | $caches = []; |
| 889 | foreach ( $this->objectCaches as $name => $function ) { |
| 890 | if ( function_exists( $function ) ) { |
| 891 | $caches[$name] = true; |
| 892 | } |
| 893 | } |
| 894 | |
| 895 | if ( !$caches ) { |
| 896 | $this->showMessage( 'config-no-cache-apcu' ); |
| 897 | } |
| 898 | |
| 899 | $this->setVar( '_Caches', $caches ); |
| 900 | } |
| 901 | |
| 902 | /** |
| 903 | * Scare user to death if they have mod_security or mod_security2 |
| 904 | * @return bool |
| 905 | */ |
| 906 | protected function envCheckModSecurity() { |
| 907 | if ( self::apacheModulePresent( 'mod_security' ) |
| 908 | || self::apacheModulePresent( 'mod_security2' ) ) { |
| 909 | $this->showMessage( 'config-mod-security' ); |
| 910 | } |
| 911 | |
| 912 | return true; |
| 913 | } |
| 914 | |
| 915 | /** |
| 916 | * Search for GNU diff3. |
| 917 | * @return bool |
| 918 | */ |
| 919 | protected function envCheckDiff3() { |
| 920 | $names = [ "gdiff3", "diff3" ]; |
| 921 | if ( wfIsWindows() ) { |
| 922 | $names[] = 'diff3.exe'; |
| 923 | } |
| 924 | $versionInfo = [ '--version', 'GNU diffutils' ]; |
| 925 | |
| 926 | $diff3 = ExecutableFinder::findInDefaultPaths( $names, $versionInfo ); |
| 927 | |
| 928 | if ( $diff3 ) { |
| 929 | $this->setVar( 'wgDiff3', $diff3 ); |
| 930 | } else { |
| 931 | $this->setVar( 'wgDiff3', false ); |
| 932 | $this->showMessage( 'config-diff3-bad' ); |
| 933 | } |
| 934 | |
| 935 | return true; |
| 936 | } |
| 937 | |
| 938 | /** |
| 939 | * Environment check for ImageMagick and GD. |
| 940 | * @return bool |
| 941 | */ |
| 942 | protected function envCheckGraphics() { |
| 943 | $names = wfIsWindows() ? 'convert.exe' : 'convert'; |
| 944 | $versionInfo = [ '-version', 'ImageMagick' ]; |
| 945 | $convert = ExecutableFinder::findInDefaultPaths( $names, $versionInfo ); |
| 946 | |
| 947 | $this->setVar( 'wgImageMagickConvertCommand', '' ); |
| 948 | if ( $convert ) { |
| 949 | $this->setVar( 'wgImageMagickConvertCommand', $convert ); |
| 950 | $this->showMessage( 'config-imagemagick', $convert ); |
| 951 | } elseif ( function_exists( 'imagejpeg' ) ) { |
| 952 | $this->showMessage( 'config-gd' ); |
| 953 | } else { |
| 954 | $this->showMessage( 'config-no-scaling' ); |
| 955 | } |
| 956 | |
| 957 | return true; |
| 958 | } |
| 959 | |
| 960 | /** |
| 961 | * Search for git. |
| 962 | * |
| 963 | * @since 1.22 |
| 964 | * @return bool |
| 965 | */ |
| 966 | protected function envCheckGit() { |
| 967 | $names = wfIsWindows() ? 'git.exe' : 'git'; |
| 968 | $versionInfo = [ '--version', 'git version' ]; |
| 969 | |
| 970 | $git = ExecutableFinder::findInDefaultPaths( $names, $versionInfo ); |
| 971 | |
| 972 | if ( $git ) { |
| 973 | $this->setVar( 'wgGitBin', $git ); |
| 974 | $this->showMessage( 'config-git', $git ); |
| 975 | } else { |
| 976 | $this->setVar( 'wgGitBin', false ); |
| 977 | $this->showMessage( 'config-git-bad' ); |
| 978 | } |
| 979 | |
| 980 | return true; |
| 981 | } |
| 982 | |
| 983 | /** |
| 984 | * Environment check to inform user which server we've assumed. |
| 985 | * |
| 986 | * @return bool |
| 987 | */ |
| 988 | protected function envCheckServer() { |
| 989 | $server = $this->envGetDefaultServer(); |
| 990 | if ( $server !== null ) { |
| 991 | $this->showMessage( 'config-using-server', $server ); |
| 992 | } |
| 993 | return true; |
| 994 | } |
| 995 | |
| 996 | /** |
| 997 | * Environment check to inform user which paths we've assumed. |
| 998 | * |
| 999 | * @return bool |
| 1000 | */ |
| 1001 | protected function envCheckPath() { |
| 1002 | $this->showMessage( |
| 1003 | 'config-using-uri', |
| 1004 | $this->getVar( 'wgServer' ), |
| 1005 | $this->getVar( 'wgScriptPath' ) |
| 1006 | ); |
| 1007 | return true; |
| 1008 | } |
| 1009 | |
| 1010 | /** |
| 1011 | * Environment check for the permissions of the uploads directory |
| 1012 | * @return bool |
| 1013 | */ |
| 1014 | protected function envCheckUploadsDirectory() { |
| 1015 | global $IP; |
| 1016 | |
| 1017 | $dir = $IP . '/images/'; |
| 1018 | $url = $this->getVar( 'wgServer' ) . $this->getVar( 'wgScriptPath' ) . '/images/'; |
| 1019 | $safe = !$this->dirIsExecutable( $dir, $url ); |
| 1020 | |
| 1021 | if ( !$safe ) { |
| 1022 | $this->showWarning( 'config-uploads-not-safe', $dir ); |
| 1023 | } |
| 1024 | |
| 1025 | return true; |
| 1026 | } |
| 1027 | |
| 1028 | protected function envCheckUploadsServerResponse(): bool { |
| 1029 | $url = $this->getVar( 'wgServer' ) . $this->getVar( 'wgScriptPath' ) . '/images/README'; |
| 1030 | $httpRequestFactory = MediaWikiServices::getInstance()->getHttpRequestFactory(); |
| 1031 | $status = null; |
| 1032 | |
| 1033 | $req = $httpRequestFactory->create( |
| 1034 | $url, |
| 1035 | [ |
| 1036 | 'method' => 'GET', |
| 1037 | 'timeout' => 3, |
| 1038 | 'followRedirects' => true |
| 1039 | ], |
| 1040 | __METHOD__ |
| 1041 | ); |
| 1042 | try { |
| 1043 | $status = $req->execute(); |
| 1044 | } catch ( Exception ) { |
| 1045 | // HttpRequestFactory::get can throw with allow_url_fopen = false and no curl |
| 1046 | // extension. |
| 1047 | } |
| 1048 | |
| 1049 | if ( !$status || !$status->isGood() ) { |
| 1050 | $this->showWarning( 'config-uploads-security-requesterror', 'X-Content-Type-Options: nosniff' ); |
| 1051 | return true; |
| 1052 | } |
| 1053 | |
| 1054 | $headerValue = $req->getResponseHeader( 'X-Content-Type-Options' ) ?? ''; |
| 1055 | $responseList = Header::splitList( $headerValue ); |
| 1056 | if ( !in_array( 'nosniff', $responseList, true ) ) { |
| 1057 | $this->showWarning( 'config-uploads-security-headers', 'X-Content-Type-Options: nosniff' ); |
| 1058 | } |
| 1059 | |
| 1060 | return true; |
| 1061 | } |
| 1062 | |
| 1063 | /** |
| 1064 | * Checks if we're running on 64 bit or not. 32 bit is becoming increasingly |
| 1065 | * hard to support, so let's at least warn people. |
| 1066 | * |
| 1067 | * @return bool |
| 1068 | */ |
| 1069 | protected function envCheck64Bit() { |
| 1070 | if ( PHP_INT_SIZE == 4 ) { |
| 1071 | $this->showMessage( 'config-using-32bit' ); |
| 1072 | } |
| 1073 | |
| 1074 | return true; |
| 1075 | } |
| 1076 | |
| 1077 | /** |
| 1078 | * Check and display the libicu and Unicode versions |
| 1079 | */ |
| 1080 | protected function envCheckLibicu() { |
| 1081 | $unicodeVersion = implode( '.', array_slice( IntlChar::getUnicodeVersion(), 0, 3 ) ); |
| 1082 | $this->showMessage( 'config-env-icu', INTL_ICU_VERSION, $unicodeVersion ); |
| 1083 | } |
| 1084 | |
| 1085 | /** |
| 1086 | * Helper function to be called from getDefaultSettings() |
| 1087 | * @return string |
| 1088 | */ |
| 1089 | abstract protected function envGetDefaultServer(); |
| 1090 | |
| 1091 | /** |
| 1092 | * Checks if scripts located in the given directory can be executed via the given URL. |
| 1093 | * |
| 1094 | * Used only by environment checks. |
| 1095 | * @param string $dir |
| 1096 | * @param string $url |
| 1097 | * @return bool|int|string |
| 1098 | */ |
| 1099 | public function dirIsExecutable( $dir, $url ) { |
| 1100 | $scriptTypes = [ |
| 1101 | 'php' => [ |
| 1102 | "<?php echo 'exec';", |
| 1103 | "#!/var/env php\n<?php echo 'exec';", |
| 1104 | ], |
| 1105 | ]; |
| 1106 | |
| 1107 | // it would be good to check other popular languages here, but it'll be slow. |
| 1108 | // TODO no need to have a loop if there is going to only be one script type |
| 1109 | |
| 1110 | $httpRequestFactory = MediaWikiServices::getInstance()->getHttpRequestFactory(); |
| 1111 | |
| 1112 | foreach ( $scriptTypes as $ext => $contents ) { |
| 1113 | foreach ( $contents as $source ) { |
| 1114 | $file = 'exectest.' . $ext; |
| 1115 | |
| 1116 | // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged |
| 1117 | if ( !@file_put_contents( $dir . $file, $source ) ) { |
| 1118 | break; |
| 1119 | } |
| 1120 | |
| 1121 | try { |
| 1122 | $text = $httpRequestFactory->get( |
| 1123 | $url . $file, |
| 1124 | [ 'timeout' => 3 ], |
| 1125 | __METHOD__ |
| 1126 | ); |
| 1127 | } catch ( Exception ) { |
| 1128 | // HttpRequestFactory::get can throw with allow_url_fopen = false and no curl |
| 1129 | // extension. |
| 1130 | $text = null; |
| 1131 | } |
| 1132 | // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged |
| 1133 | @unlink( $dir . $file ); |
| 1134 | |
| 1135 | if ( $text == 'exec' ) { |
| 1136 | return $ext; |
| 1137 | } |
| 1138 | } |
| 1139 | } |
| 1140 | |
| 1141 | return false; |
| 1142 | } |
| 1143 | |
| 1144 | /** |
| 1145 | * Checks for presence of an Apache module. Works only if PHP is running as an Apache module, too. |
| 1146 | * |
| 1147 | * @param string $moduleName Name of module to check. |
| 1148 | * @return bool |
| 1149 | */ |
| 1150 | public static function apacheModulePresent( $moduleName ) { |
| 1151 | if ( function_exists( 'apache_get_modules' ) && in_array( $moduleName, apache_get_modules() ) ) { |
| 1152 | return true; |
| 1153 | } |
| 1154 | // try it the hard way |
| 1155 | ob_start(); |
| 1156 | phpinfo( INFO_MODULES ); |
| 1157 | $info = ob_get_clean(); |
| 1158 | |
| 1159 | return str_contains( $info, $moduleName ); |
| 1160 | } |
| 1161 | |
| 1162 | /** |
| 1163 | * ParserOptions are constructed before we determined the language, so fix it |
| 1164 | * |
| 1165 | * @param Language $lang |
| 1166 | */ |
| 1167 | public function setParserLanguage( $lang ) { |
| 1168 | $this->parserOptions->setTargetLanguage( $lang ); |
| 1169 | $this->parserOptions->setUserLang( $lang ); |
| 1170 | } |
| 1171 | |
| 1172 | /** |
| 1173 | * Overridden by WebInstaller to provide lastPage parameters. |
| 1174 | * @param string $page |
| 1175 | * @return string |
| 1176 | */ |
| 1177 | protected function getDocUrl( $page ) { |
| 1178 | return "{$_SERVER['PHP_SELF']}?page=" . urlencode( $page ); |
| 1179 | } |
| 1180 | |
| 1181 | /** |
| 1182 | * Find extensions or skins in a subdirectory of $IP. |
| 1183 | * Returns an array containing the value for 'Name' for each found extension. |
| 1184 | * |
| 1185 | * @param string $directory Directory to search in, relative to $IP, must be either "extensions" |
| 1186 | * or "skins" |
| 1187 | * @return StatusValue An object containing an error list. If there were no errors, an associative |
| 1188 | * array of information about the extension can be found in $status->value. |
| 1189 | */ |
| 1190 | public function findExtensions( $directory = 'extensions' ) { |
| 1191 | switch ( $directory ) { |
| 1192 | case 'extensions': |
| 1193 | return $this->findExtensionsByType( 'extension', 'extensions' ); |
| 1194 | case 'skins': |
| 1195 | return $this->findExtensionsByType( 'skin', 'skins' ); |
| 1196 | default: |
| 1197 | throw new InvalidArgumentException( "Invalid extension type" ); |
| 1198 | } |
| 1199 | } |
| 1200 | |
| 1201 | /** |
| 1202 | * Find extensions or skins, and return an array containing the value for 'Name' for each found |
| 1203 | * extension. |
| 1204 | * |
| 1205 | * @param string $type Either "extension" or "skin" |
| 1206 | * @param string $directory Directory to search in, relative to $IP |
| 1207 | * @return StatusValue An object containing an error list. If there were no errors, an associative |
| 1208 | * array of information about the extension can be found in $status->value. |
| 1209 | */ |
| 1210 | protected function findExtensionsByType( $type = 'extension', $directory = 'extensions' ) { |
| 1211 | if ( $this->getVar( 'IP' ) === null ) { |
| 1212 | return StatusValue::newGood( [] ); |
| 1213 | } |
| 1214 | |
| 1215 | $extDir = $this->getVar( 'IP' ) . '/' . $directory; |
| 1216 | if ( !is_readable( $extDir ) || !is_dir( $extDir ) ) { |
| 1217 | return StatusValue::newGood( [] ); |
| 1218 | } |
| 1219 | |
| 1220 | $dh = opendir( $extDir ); |
| 1221 | $exts = []; |
| 1222 | $status = new StatusValue(); |
| 1223 | // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition |
| 1224 | while ( ( $file = readdir( $dh ) ) !== false ) { |
| 1225 | // skip non-dirs and hidden directories |
| 1226 | if ( !is_dir( "$extDir/$file" ) || $file[0] === '.' ) { |
| 1227 | continue; |
| 1228 | } |
| 1229 | $extStatus = $this->getExtensionInfo( $type, $directory, $file ); |
| 1230 | if ( $extStatus->isOK() ) { |
| 1231 | $exts[$file] = $extStatus->value; |
| 1232 | } elseif ( $extStatus->hasMessage( 'config-extension-not-found' ) ) { |
| 1233 | // (T225512) The directory is not actually an extension. Downgrade to warning. |
| 1234 | $status->warning( 'config-extension-not-found', $file ); |
| 1235 | } else { |
| 1236 | $status->merge( $extStatus ); |
| 1237 | } |
| 1238 | } |
| 1239 | closedir( $dh ); |
| 1240 | uksort( $exts, 'strnatcasecmp' ); |
| 1241 | |
| 1242 | $status->value = $exts; |
| 1243 | |
| 1244 | return $status; |
| 1245 | } |
| 1246 | |
| 1247 | /** |
| 1248 | * @param string $type Either "extension" or "skin" |
| 1249 | * @param string $parentRelPath The parent directory relative to $IP |
| 1250 | * @param string $name The extension or skin name |
| 1251 | * @return StatusValue An object containing an error list. If there were no errors, an associative |
| 1252 | * array of information about the extension can be found in $status->value. |
| 1253 | */ |
| 1254 | protected function getExtensionInfo( $type, $parentRelPath, $name ) { |
| 1255 | if ( $this->getVar( 'IP' ) === null ) { |
| 1256 | throw new RuntimeException( 'Cannot find extensions since the IP variable is not yet set' ); |
| 1257 | } |
| 1258 | if ( $type !== 'extension' && $type !== 'skin' ) { |
| 1259 | throw new InvalidArgumentException( "Invalid extension type" ); |
| 1260 | } |
| 1261 | $absDir = $this->getVar( 'IP' ) . "/$parentRelPath/$name"; |
| 1262 | $relDir = "../$parentRelPath/$name"; |
| 1263 | if ( !is_dir( $absDir ) ) { |
| 1264 | return StatusValue::newFatal( 'config-extension-not-found', $name ); |
| 1265 | } |
| 1266 | $jsonFile = $type . '.json'; |
| 1267 | $fullJsonFile = "$absDir/$jsonFile"; |
| 1268 | $isJson = file_exists( $fullJsonFile ); |
| 1269 | $isPhp = false; |
| 1270 | if ( !$isJson ) { |
| 1271 | // Only fallback to PHP file if JSON doesn't exist |
| 1272 | $fullPhpFile = "$absDir/$name.php"; |
| 1273 | $isPhp = file_exists( $fullPhpFile ); |
| 1274 | } |
| 1275 | if ( !$isJson && !$isPhp ) { |
| 1276 | return StatusValue::newFatal( 'config-extension-not-found', $name ); |
| 1277 | } |
| 1278 | |
| 1279 | // Extension exists. Now see if there are screenshots |
| 1280 | $info = []; |
| 1281 | if ( is_dir( "$absDir/screenshots" ) ) { |
| 1282 | $paths = glob( "$absDir/screenshots/*.png" ); |
| 1283 | foreach ( $paths as $path ) { |
| 1284 | $info['screenshots'][] = str_replace( $absDir, $relDir, $path ); |
| 1285 | } |
| 1286 | } |
| 1287 | |
| 1288 | if ( $isJson ) { |
| 1289 | $jsonStatus = $this->readExtension( $fullJsonFile ); |
| 1290 | if ( !$jsonStatus->isOK() ) { |
| 1291 | return $jsonStatus; |
| 1292 | } |
| 1293 | $info += $jsonStatus->value; |
| 1294 | } |
| 1295 | |
| 1296 | return StatusValue::newGood( $info ); |
| 1297 | } |
| 1298 | |
| 1299 | /** |
| 1300 | * @param string $fullJsonFile |
| 1301 | * @param array $extDeps |
| 1302 | * @param array $skinDeps |
| 1303 | * |
| 1304 | * @return StatusValue On success, an array of extension information is in $status->value. On |
| 1305 | * failure, the Status object will have an error list. |
| 1306 | */ |
| 1307 | private function readExtension( $fullJsonFile, $extDeps = [], $skinDeps = [] ) { |
| 1308 | $load = [ |
| 1309 | $fullJsonFile => 1 |
| 1310 | ]; |
| 1311 | if ( $extDeps ) { |
| 1312 | $extDir = $this->getVar( 'IP' ) . '/extensions'; |
| 1313 | foreach ( $extDeps as $dep ) { |
| 1314 | $fname = "$extDir/$dep/extension.json"; |
| 1315 | if ( !file_exists( $fname ) ) { |
| 1316 | return StatusValue::newFatal( 'config-extension-not-found', $dep ); |
| 1317 | } |
| 1318 | $load[$fname] = 1; |
| 1319 | } |
| 1320 | } |
| 1321 | if ( $skinDeps ) { |
| 1322 | $skinDir = $this->getVar( 'IP' ) . '/skins'; |
| 1323 | foreach ( $skinDeps as $dep ) { |
| 1324 | $fname = "$skinDir/$dep/skin.json"; |
| 1325 | if ( !file_exists( $fname ) ) { |
| 1326 | return StatusValue::newFatal( 'config-extension-not-found', $dep ); |
| 1327 | } |
| 1328 | $load[$fname] = 1; |
| 1329 | } |
| 1330 | } |
| 1331 | $registry = new ExtensionRegistry(); |
| 1332 | try { |
| 1333 | $info = $registry->readFromQueue( $load ); |
| 1334 | } catch ( ExtensionDependencyError $e ) { |
| 1335 | if ( $e->incompatibleCore || $e->incompatibleSkins |
| 1336 | || $e->incompatibleExtensions |
| 1337 | ) { |
| 1338 | // If something is incompatible with a dependency, we have no real |
| 1339 | // option besides skipping it |
| 1340 | return StatusValue::newFatal( 'config-extension-dependency', |
| 1341 | basename( dirname( $fullJsonFile ) ), $e->getMessage() ); |
| 1342 | } elseif ( $e->missingExtensions || $e->missingSkins ) { |
| 1343 | // There's an extension missing in the dependency tree, |
| 1344 | // so add those to the dependency list and try again |
| 1345 | $status = $this->readExtension( |
| 1346 | $fullJsonFile, |
| 1347 | array_merge( $extDeps, $e->missingExtensions ), |
| 1348 | array_merge( $skinDeps, $e->missingSkins ) |
| 1349 | ); |
| 1350 | if ( !$status->isOK() && !$status->hasMessage( 'config-extension-dependency' ) ) { |
| 1351 | $status = StatusValue::newFatal( 'config-extension-dependency', |
| 1352 | basename( dirname( $fullJsonFile ) ), Status::wrap( $status )->getMessage() ); |
| 1353 | } |
| 1354 | return $status; |
| 1355 | } |
| 1356 | // Some other kind of dependency error? |
| 1357 | return StatusValue::newFatal( 'config-extension-dependency', |
| 1358 | basename( dirname( $fullJsonFile ) ), $e->getMessage() ); |
| 1359 | } |
| 1360 | $ret = []; |
| 1361 | // The order of credits will be the order of $load, |
| 1362 | // so the first extension is the one we want to load, |
| 1363 | // everything else is a dependency |
| 1364 | $i = 0; |
| 1365 | foreach ( $info['credits'] as $credit ) { |
| 1366 | $i++; |
| 1367 | if ( $i == 1 ) { |
| 1368 | // Extension we want to load |
| 1369 | continue; |
| 1370 | } |
| 1371 | $type = basename( $credit['path'] ) === 'skin.json' ? 'skins' : 'extensions'; |
| 1372 | $ret['requires'][$type][] = $credit['name']; |
| 1373 | } |
| 1374 | $credits = array_values( $info['credits'] )[0]; |
| 1375 | if ( isset( $credits['url'] ) ) { |
| 1376 | $ret['url'] = $credits['url']; |
| 1377 | } |
| 1378 | $ret['type'] = $credits['type']; |
| 1379 | |
| 1380 | return StatusValue::newGood( $ret ); |
| 1381 | } |
| 1382 | |
| 1383 | /** |
| 1384 | * Returns a default value to be used for $wgDefaultSkin: normally the DefaultSkin from |
| 1385 | * config-schema.yaml, but will fall back to another if the default skin is missing |
| 1386 | * and some other one is present instead. |
| 1387 | * |
| 1388 | * @param string[] $skinNames Names of installed skins. |
| 1389 | * @return string |
| 1390 | */ |
| 1391 | public function getDefaultSkin( array $skinNames ) { |
| 1392 | $defaultSkin = $GLOBALS['wgDefaultSkin']; |
| 1393 | |
| 1394 | if ( in_array( 'vector', $skinNames ) ) { |
| 1395 | $skinNames[] = 'vector-2022'; |
| 1396 | } |
| 1397 | |
| 1398 | // T346332: Minerva skin uses different name from its directory name |
| 1399 | if ( in_array( 'minervaneue', $skinNames ) ) { |
| 1400 | $minervaNeue = array_search( 'minervaneue', $skinNames ); |
| 1401 | $skinNames[$minervaNeue] = 'minerva'; |
| 1402 | } |
| 1403 | |
| 1404 | if ( !$skinNames || in_array( $defaultSkin, $skinNames ) ) { |
| 1405 | return $defaultSkin; |
| 1406 | } else { |
| 1407 | return $skinNames[0]; |
| 1408 | } |
| 1409 | } |
| 1410 | |
| 1411 | /** |
| 1412 | * Get a list of tasks to do |
| 1413 | * |
| 1414 | * There must be a config-install-$name message defined per step, which will |
| 1415 | * be shown on install. |
| 1416 | * |
| 1417 | * @return TaskList |
| 1418 | */ |
| 1419 | protected function getTaskList() { |
| 1420 | $taskList = new TaskList; |
| 1421 | $taskFactory = $this->getTaskFactory(); |
| 1422 | $taskFactory->registerMainTasks( $taskList, TaskFactory::PROFILE_INSTALLER ); |
| 1423 | |
| 1424 | // Add any steps added by overrides |
| 1425 | foreach ( $this->extraInstallSteps as $requirement => $steps ) { |
| 1426 | foreach ( $steps as $spec ) { |
| 1427 | if ( $requirement !== 'BEGINNING' ) { |
| 1428 | $spec += [ 'after' => $requirement ]; |
| 1429 | } |
| 1430 | $taskList->add( $taskFactory->create( $spec ) ); |
| 1431 | } |
| 1432 | } |
| 1433 | |
| 1434 | return $taskList; |
| 1435 | } |
| 1436 | |
| 1437 | protected function getTaskFactory(): TaskFactory { |
| 1438 | if ( $this->taskFactory === null ) { |
| 1439 | $this->taskFactory = new TaskFactory( |
| 1440 | MediaWikiServices::getInstance()->getObjectFactory(), |
| 1441 | $this->getDBInstaller() |
| 1442 | ); |
| 1443 | } |
| 1444 | return $this->taskFactory; |
| 1445 | } |
| 1446 | |
| 1447 | /** |
| 1448 | * Actually perform the installation. |
| 1449 | * |
| 1450 | * @param callable $startCB A callback array for the beginning of each step |
| 1451 | * @param callable $endCB A callback array for the end of each step |
| 1452 | * |
| 1453 | * @return StatusValue |
| 1454 | */ |
| 1455 | public function performInstallation( $startCB, $endCB ) { |
| 1456 | $tasks = $this->getTaskList(); |
| 1457 | |
| 1458 | $taskRunner = new TaskRunner( $tasks, $this->getTaskFactory(), |
| 1459 | TaskFactory::PROFILE_INSTALLER ); |
| 1460 | $taskRunner->addTaskStartListener( $startCB ); |
| 1461 | $taskRunner->addTaskEndListener( $endCB ); |
| 1462 | |
| 1463 | $status = $taskRunner->execute(); |
| 1464 | if ( $status->isOK() ) { |
| 1465 | $this->showSuccess( |
| 1466 | 'config-install-db-success' |
| 1467 | ); |
| 1468 | $this->setVar( '_InstallDone', true ); |
| 1469 | } |
| 1470 | |
| 1471 | return $status; |
| 1472 | } |
| 1473 | |
| 1474 | /** |
| 1475 | * Override the necessary bits of the config to run an installation. |
| 1476 | */ |
| 1477 | public static function overrideConfig( SettingsBuilder $settings ) { |
| 1478 | // Use PHP's built-in session handling, since MediaWiki's |
| 1479 | // SessionHandler can't work before we have an object cache set up. |
| 1480 | if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) { |
| 1481 | define( 'MW_NO_SESSION_HANDLER', 1 ); |
| 1482 | } |
| 1483 | |
| 1484 | $settings->overrideConfigValues( [ |
| 1485 | |
| 1486 | // Don't access the database |
| 1487 | MainConfigNames::UseDatabaseMessages => false, |
| 1488 | |
| 1489 | // Don't cache langconv tables |
| 1490 | MainConfigNames::LanguageConverterCacheType => CACHE_NONE, |
| 1491 | |
| 1492 | // Debug-friendly |
| 1493 | MainConfigNames::ShowExceptionDetails => true, |
| 1494 | MainConfigNames::ShowHostnames => true, |
| 1495 | |
| 1496 | // Don't break forms |
| 1497 | MainConfigNames::ExternalLinkTarget => '_blank', |
| 1498 | |
| 1499 | // Allow multiple ob_flush() calls |
| 1500 | MainConfigNames::DisableOutputCompression => true, |
| 1501 | |
| 1502 | // Use a sensible cookie prefix (not my_wiki) |
| 1503 | MainConfigNames::CookiePrefix => 'mw_installer', |
| 1504 | |
| 1505 | // Some of the environment checks make shell requests, remove limits |
| 1506 | MainConfigNames::MaxShellMemory => 0, |
| 1507 | |
| 1508 | // Override the default CookieSessionProvider with a dummy |
| 1509 | // implementation that won't stomp on PHP's cookies. |
| 1510 | MainConfigNames::SessionProviders => [ |
| 1511 | [ |
| 1512 | 'class' => InstallerSessionProvider::class, |
| 1513 | 'args' => [ [ |
| 1514 | 'priority' => 1, |
| 1515 | ] ] |
| 1516 | ], |
| 1517 | ], |
| 1518 | |
| 1519 | // Don't use the DB as the main stash |
| 1520 | MainConfigNames::MainStash => CACHE_NONE, |
| 1521 | |
| 1522 | // Don't try to use any object cache for SessionManager either. |
| 1523 | MainConfigNames::SessionCacheType => CACHE_NONE, |
| 1524 | |
| 1525 | // Set a dummy $wgServer to bypass the check in Setup.php, the |
| 1526 | // web installer will automatically detect it and not use this value. |
| 1527 | MainConfigNames::Server => 'https://🌻.invalid', |
| 1528 | ] ); |
| 1529 | } |
| 1530 | |
| 1531 | /** |
| 1532 | * Add an installation step following the given step. |
| 1533 | * |
| 1534 | * @param array $callback A valid installation callback array, in this form: |
| 1535 | * [ 'name' => 'some-unique-name', 'callback' => [ $obj, 'function' ] ]; |
| 1536 | * @param string $findStep The step to find. Omit to put the step at the beginning |
| 1537 | */ |
| 1538 | public function addInstallStep( $callback, $findStep = 'BEGINNING' ) { |
| 1539 | $this->extraInstallSteps[$findStep][] = $callback; |
| 1540 | } |
| 1541 | |
| 1542 | /** |
| 1543 | * Disable the time limit for execution. |
| 1544 | * Some long-running pages (Install, Upgrade) will want to do this |
| 1545 | */ |
| 1546 | protected function disableTimeLimit() { |
| 1547 | // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged |
| 1548 | @set_time_limit( 0 ); |
| 1549 | } |
| 1550 | } |