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| 1 | <?php |
| 2 | /** |
| 3 | * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com" |
| 4 | * |
| 5 | * @license GPL-2.0-or-later |
| 6 | * @file |
| 7 | * @defgroup API API |
| 8 | */ |
| 9 | |
| 10 | namespace MediaWiki\Api; |
| 11 | |
| 12 | use LogicException; |
| 13 | use MediaWiki; |
| 14 | use MediaWiki\Api\Validator\ApiParamValidator; |
| 15 | use MediaWiki\Context\DerivativeContext; |
| 16 | use MediaWiki\Context\IContextSource; |
| 17 | use MediaWiki\Context\RequestContext; |
| 18 | use MediaWiki\Debug\MWDebug; |
| 19 | use MediaWiki\Exception\ILocalizedException; |
| 20 | use MediaWiki\Exception\MWExceptionHandler; |
| 21 | use MediaWiki\Exception\MWExceptionRenderer; |
| 22 | use MediaWiki\Html\Html; |
| 23 | use MediaWiki\Logger\LoggerFactory; |
| 24 | use MediaWiki\MainConfigNames; |
| 25 | use MediaWiki\MediaWikiServices; |
| 26 | use MediaWiki\Message\Message; |
| 27 | use MediaWiki\ParamValidator\TypeDef\UserDef; |
| 28 | use MediaWiki\Parser\Sanitizer; |
| 29 | use MediaWiki\Profiler\Profiler; |
| 30 | use MediaWiki\Profiler\ProfilingContext; |
| 31 | use MediaWiki\Request\FauxRequest; |
| 32 | use MediaWiki\Request\WebRequest; |
| 33 | use MediaWiki\Request\WebRequestUpload; |
| 34 | use MediaWiki\Rest\HeaderParser\Origin; |
| 35 | use MediaWiki\User\UserRigorOptions; |
| 36 | use MediaWiki\WikiMap\WikiMap; |
| 37 | use Throwable; |
| 38 | use UnexpectedValueException; |
| 39 | use Wikimedia\Message\ListType; |
| 40 | use Wikimedia\Message\MessageSpecifier; |
| 41 | use Wikimedia\ParamValidator\ParamValidator; |
| 42 | use Wikimedia\ParamValidator\TypeDef\IntegerDef; |
| 43 | use Wikimedia\Parsoid\Core\SectionMetadata; |
| 44 | use Wikimedia\ScopedCallback; |
| 45 | use Wikimedia\Stats\StatsFactory; |
| 46 | use Wikimedia\Timestamp\ConvertibleTimestamp; |
| 47 | use Wikimedia\Timestamp\TimestampException; |
| 48 | use Wikimedia\Timestamp\TimestampFormat as TS; |
| 49 | |
| 50 | /** |
| 51 | * This is the main API class, used for both external and internal processing. |
| 52 | * When executed, it will create the requested formatter object, |
| 53 | * instantiate and execute an object associated with the needed action, |
| 54 | * and use formatter to print results. |
| 55 | * In case of an exception, an error message will be printed using the same formatter. |
| 56 | * |
| 57 | * To use API from another application, run it using MediaWiki\Request\FauxRequest object, in which |
| 58 | * case any internal exceptions will not be handled but passed up to the caller. |
| 59 | * After successful execution, use getResult() for the resulting data. |
| 60 | * |
| 61 | * @newable |
| 62 | * @note marked as newable in 1.35 for lack of a better alternative, |
| 63 | * but should use a factory in the future. |
| 64 | * @ingroup API |
| 65 | */ |
| 66 | class ApiMain extends ApiBase { |
| 67 | /** |
| 68 | * When no format parameter is given, this format will be used |
| 69 | */ |
| 70 | private const API_DEFAULT_FORMAT = 'jsonfm'; |
| 71 | |
| 72 | /** |
| 73 | * When no uselang parameter is given, this language will be used |
| 74 | */ |
| 75 | private const API_DEFAULT_USELANG = 'user'; |
| 76 | |
| 77 | /** |
| 78 | * List of available modules: action name => module class |
| 79 | */ |
| 80 | private const MODULES = [ |
| 81 | 'login' => [ |
| 82 | 'class' => ApiLogin::class, |
| 83 | 'services' => [ |
| 84 | 'AuthManager', |
| 85 | 'UserIdentityUtils' |
| 86 | ], |
| 87 | ], |
| 88 | 'clientlogin' => [ |
| 89 | 'class' => ApiClientLogin::class, |
| 90 | 'services' => [ |
| 91 | 'AuthManager', |
| 92 | 'UrlUtils', |
| 93 | ], |
| 94 | ], |
| 95 | 'logout' => [ |
| 96 | 'class' => ApiLogout::class, |
| 97 | ], |
| 98 | 'createaccount' => [ |
| 99 | 'class' => ApiAMCreateAccount::class, |
| 100 | 'services' => [ |
| 101 | 'AuthManager', |
| 102 | 'UrlUtils', |
| 103 | ], |
| 104 | ], |
| 105 | 'linkaccount' => [ |
| 106 | 'class' => ApiLinkAccount::class, |
| 107 | 'services' => [ |
| 108 | 'AuthManager', |
| 109 | 'UrlUtils', |
| 110 | ], |
| 111 | ], |
| 112 | 'unlinkaccount' => [ |
| 113 | 'class' => ApiRemoveAuthenticationData::class, |
| 114 | 'services' => [ |
| 115 | 'AuthManager', |
| 116 | ], |
| 117 | ], |
| 118 | 'changeauthenticationdata' => [ |
| 119 | 'class' => ApiChangeAuthenticationData::class, |
| 120 | 'services' => [ |
| 121 | 'AuthManager', |
| 122 | ], |
| 123 | ], |
| 124 | 'removeauthenticationdata' => [ |
| 125 | 'class' => ApiRemoveAuthenticationData::class, |
| 126 | 'services' => [ |
| 127 | 'AuthManager', |
| 128 | ], |
| 129 | ], |
| 130 | 'resetpassword' => [ |
| 131 | 'class' => ApiResetPassword::class, |
| 132 | 'services' => [ |
| 133 | 'PasswordReset', |
| 134 | ] |
| 135 | ], |
| 136 | 'query' => [ |
| 137 | 'class' => ApiQuery::class, |
| 138 | 'services' => [ |
| 139 | 'ObjectFactory', |
| 140 | 'WikiExporterFactory', |
| 141 | 'TitleFormatter', |
| 142 | 'TitleFactory', |
| 143 | ] |
| 144 | ], |
| 145 | 'expandtemplates' => [ |
| 146 | 'class' => ApiExpandTemplates::class, |
| 147 | 'services' => [ |
| 148 | 'RevisionStore', |
| 149 | 'ParserFactory', |
| 150 | ] |
| 151 | ], |
| 152 | 'parse' => [ |
| 153 | 'class' => ApiParse::class, |
| 154 | 'services' => [ |
| 155 | 'RevisionLookup', |
| 156 | 'SkinFactory', |
| 157 | 'LanguageNameUtils', |
| 158 | 'LinkBatchFactory', |
| 159 | 'LinkCache', |
| 160 | 'ContentHandlerFactory', |
| 161 | 'ParserFactory', |
| 162 | 'WikiPageFactory', |
| 163 | 'ContentRenderer', |
| 164 | 'ContentTransformer', |
| 165 | 'CommentFormatter', |
| 166 | 'TempUserCreator', |
| 167 | 'UserFactory', |
| 168 | 'UrlUtils', |
| 169 | 'TitleFormatter', |
| 170 | 'JsonCodec', |
| 171 | ] |
| 172 | ], |
| 173 | 'stashedit' => [ |
| 174 | 'class' => ApiStashEdit::class, |
| 175 | 'services' => [ |
| 176 | 'ContentHandlerFactory', |
| 177 | 'PageEditStash', |
| 178 | 'RevisionLookup', |
| 179 | 'StatsFactory', |
| 180 | 'WikiPageFactory', |
| 181 | 'TempUserCreator', |
| 182 | 'UserFactory', |
| 183 | ] |
| 184 | ], |
| 185 | 'opensearch' => [ |
| 186 | 'class' => ApiOpenSearch::class, |
| 187 | 'services' => [ |
| 188 | 'LinkBatchFactory', |
| 189 | 'SearchEngineConfig', |
| 190 | 'SearchEngineFactory', |
| 191 | 'UrlUtils', |
| 192 | ] |
| 193 | ], |
| 194 | 'feedcontributions' => [ |
| 195 | 'class' => ApiFeedContributions::class, |
| 196 | 'services' => [ |
| 197 | 'RevisionStore', |
| 198 | 'LinkRenderer', |
| 199 | 'LinkBatchFactory', |
| 200 | 'HookContainer', |
| 201 | 'DBLoadBalancerFactory', |
| 202 | 'NamespaceInfo', |
| 203 | 'UserFactory', |
| 204 | 'CommentFormatter', |
| 205 | ] |
| 206 | ], |
| 207 | 'feedrecentchanges' => [ |
| 208 | 'class' => ApiFeedRecentChanges::class, |
| 209 | 'services' => [ |
| 210 | 'SpecialPageFactory', |
| 211 | 'TempUserConfig', |
| 212 | ] |
| 213 | ], |
| 214 | 'feedwatchlist' => [ |
| 215 | 'class' => ApiFeedWatchlist::class, |
| 216 | 'services' => [ |
| 217 | 'ParserFactory', |
| 218 | ] |
| 219 | ], |
| 220 | 'help' => [ |
| 221 | 'class' => ApiHelp::class, |
| 222 | 'services' => [ |
| 223 | 'SkinFactory', |
| 224 | ] |
| 225 | ], |
| 226 | 'paraminfo' => [ |
| 227 | 'class' => ApiParamInfo::class, |
| 228 | 'services' => [ |
| 229 | 'UserFactory', |
| 230 | ], |
| 231 | ], |
| 232 | 'rsd' => [ |
| 233 | 'class' => ApiRsd::class, |
| 234 | ], |
| 235 | 'compare' => [ |
| 236 | 'class' => ApiComparePages::class, |
| 237 | 'services' => [ |
| 238 | 'RevisionStore', |
| 239 | 'ArchivedRevisionLookup', |
| 240 | 'SlotRoleRegistry', |
| 241 | 'ContentHandlerFactory', |
| 242 | 'ContentTransformer', |
| 243 | 'CommentFormatter', |
| 244 | 'TempUserCreator', |
| 245 | 'UserFactory', |
| 246 | ] |
| 247 | ], |
| 248 | 'checktoken' => [ |
| 249 | 'class' => ApiCheckToken::class, |
| 250 | ], |
| 251 | 'cspreport' => [ |
| 252 | 'class' => ApiCSPReport::class, |
| 253 | ], |
| 254 | 'validatepassword' => [ |
| 255 | 'class' => ApiValidatePassword::class, |
| 256 | 'services' => [ |
| 257 | 'AuthManager', |
| 258 | 'UserFactory', |
| 259 | ] |
| 260 | ], |
| 261 | |
| 262 | // Write modules |
| 263 | 'purge' => [ |
| 264 | 'class' => ApiPurge::class, |
| 265 | 'services' => [ |
| 266 | 'WikiPageFactory', |
| 267 | 'TitleFormatter', |
| 268 | ], |
| 269 | ], |
| 270 | 'setnotificationtimestamp' => [ |
| 271 | 'class' => ApiSetNotificationTimestamp::class, |
| 272 | 'services' => [ |
| 273 | 'DBLoadBalancerFactory', |
| 274 | 'RevisionStore', |
| 275 | 'WatchedItemStore', |
| 276 | 'TitleFormatter', |
| 277 | 'TitleFactory', |
| 278 | ] |
| 279 | ], |
| 280 | 'rollback' => [ |
| 281 | 'class' => ApiRollback::class, |
| 282 | 'services' => [ |
| 283 | 'RollbackPageFactory', |
| 284 | 'WatchlistManager', |
| 285 | 'WatchedItemStore', |
| 286 | 'UserOptionsLookup', |
| 287 | ] |
| 288 | ], |
| 289 | 'delete' => [ |
| 290 | 'class' => ApiDelete::class, |
| 291 | 'services' => [ |
| 292 | 'RepoGroup', |
| 293 | 'WatchlistManager', |
| 294 | 'WatchedItemStore', |
| 295 | 'UserOptionsLookup', |
| 296 | 'DeletePageFactory', |
| 297 | ] |
| 298 | ], |
| 299 | 'undelete' => [ |
| 300 | 'class' => ApiUndelete::class, |
| 301 | 'services' => [ |
| 302 | 'WatchlistManager', |
| 303 | 'WatchedItemStore', |
| 304 | 'UserOptionsLookup', |
| 305 | 'UndeletePageFactory', |
| 306 | 'WikiPageFactory', |
| 307 | ] |
| 308 | ], |
| 309 | 'protect' => [ |
| 310 | 'class' => ApiProtect::class, |
| 311 | 'services' => [ |
| 312 | 'WatchlistManager', |
| 313 | 'WatchedItemStore', |
| 314 | 'UserOptionsLookup', |
| 315 | 'RestrictionStore', |
| 316 | ] |
| 317 | ], |
| 318 | 'block' => [ |
| 319 | 'class' => ApiBlock::class, |
| 320 | 'services' => [ |
| 321 | 'BlockPermissionCheckerFactory', |
| 322 | 'BlockUserFactory', |
| 323 | 'UserIdentityLookup', |
| 324 | 'WatchedItemStore', |
| 325 | 'BlockTargetFactory', |
| 326 | 'BlockActionInfo', |
| 327 | 'DatabaseBlockStore', |
| 328 | 'WatchlistManager', |
| 329 | 'UserOptionsLookup', |
| 330 | ] |
| 331 | ], |
| 332 | 'unblock' => [ |
| 333 | 'class' => ApiUnblock::class, |
| 334 | 'services' => [ |
| 335 | 'BlockPermissionCheckerFactory', |
| 336 | 'UnblockUserFactory', |
| 337 | 'UserIdentityLookup', |
| 338 | 'WatchedItemStore', |
| 339 | 'WatchlistManager', |
| 340 | 'UserOptionsLookup', |
| 341 | 'DatabaseBlockStore', |
| 342 | 'BlockTargetFactory', |
| 343 | ] |
| 344 | ], |
| 345 | 'move' => [ |
| 346 | 'class' => ApiMove::class, |
| 347 | 'services' => [ |
| 348 | 'MovePageFactory', |
| 349 | 'RepoGroup', |
| 350 | 'WatchlistManager', |
| 351 | 'WatchedItemStore', |
| 352 | 'UserOptionsLookup', |
| 353 | ] |
| 354 | ], |
| 355 | 'edit' => [ |
| 356 | 'class' => ApiEditPage::class, |
| 357 | 'services' => [ |
| 358 | 'ContentHandlerFactory', |
| 359 | 'RevisionLookup', |
| 360 | 'WatchedItemStore', |
| 361 | 'WikiPageFactory', |
| 362 | 'WatchlistManager', |
| 363 | 'UserOptionsLookup', |
| 364 | 'RedirectLookup', |
| 365 | 'TempUserCreator', |
| 366 | 'UserFactory', |
| 367 | ] |
| 368 | ], |
| 369 | 'upload' => [ |
| 370 | 'class' => ApiUpload::class, |
| 371 | 'services' => [ |
| 372 | 'JobQueueGroup', |
| 373 | 'WatchlistManager', |
| 374 | 'WatchedItemStore', |
| 375 | 'UserOptionsLookup', |
| 376 | 'RepoGroup', |
| 377 | ] |
| 378 | ], |
| 379 | 'filerevert' => [ |
| 380 | 'class' => ApiFileRevert::class, |
| 381 | 'services' => [ |
| 382 | 'RepoGroup', |
| 383 | ] |
| 384 | ], |
| 385 | 'emailuser' => [ |
| 386 | 'class' => ApiEmailUser::class, |
| 387 | 'services' => [ |
| 388 | 'EmailUserFactory', |
| 389 | 'UserFactory', |
| 390 | ] |
| 391 | ], |
| 392 | 'watch' => [ |
| 393 | 'class' => ApiWatch::class, |
| 394 | 'services' => [ |
| 395 | 'WatchlistManager', |
| 396 | 'TitleFormatter', |
| 397 | 'WatchlistLabelStore', |
| 398 | 'WatchedItemStore', |
| 399 | 'NamespaceInfo', |
| 400 | ] |
| 401 | ], |
| 402 | 'patrol' => [ |
| 403 | 'class' => ApiPatrol::class, |
| 404 | 'services' => [ |
| 405 | 'RevisionStore', |
| 406 | 'PatrolManager', |
| 407 | 'RecentChangeLookup', |
| 408 | ] |
| 409 | ], |
| 410 | 'import' => [ |
| 411 | 'class' => ApiImport::class, |
| 412 | 'services' => [ |
| 413 | 'WikiImporterFactory', |
| 414 | ] |
| 415 | ], |
| 416 | 'clearhasmsg' => [ |
| 417 | 'class' => ApiClearHasMsg::class, |
| 418 | 'services' => [ |
| 419 | 'TalkPageNotificationManager', |
| 420 | ] |
| 421 | ], |
| 422 | 'userrights' => [ |
| 423 | 'class' => ApiUserrights::class, |
| 424 | 'services' => [ |
| 425 | 'UserGroupManager', |
| 426 | 'WatchedItemStore', |
| 427 | 'WatchlistManager', |
| 428 | 'UserOptionsLookup', |
| 429 | 'UserGroupAssignmentService', |
| 430 | 'MultiFormatUserIdentityLookup', |
| 431 | ] |
| 432 | ], |
| 433 | 'options' => [ |
| 434 | 'class' => ApiOptions::class, |
| 435 | 'services' => [ |
| 436 | 'UserOptionsManager', |
| 437 | 'PreferencesFactory', |
| 438 | ], |
| 439 | ], |
| 440 | 'imagerotate' => [ |
| 441 | 'class' => ApiImageRotate::class, |
| 442 | 'services' => [ |
| 443 | 'RepoGroup', |
| 444 | 'TempFSFileFactory', |
| 445 | 'TitleFactory', |
| 446 | ] |
| 447 | ], |
| 448 | 'revisiondelete' => [ |
| 449 | 'class' => ApiRevisionDelete::class, |
| 450 | ], |
| 451 | 'managetags' => [ |
| 452 | 'class' => ApiManageTags::class, |
| 453 | ], |
| 454 | 'tag' => [ |
| 455 | 'class' => ApiTag::class, |
| 456 | 'services' => [ |
| 457 | 'DBLoadBalancerFactory', |
| 458 | 'RevisionStore', |
| 459 | 'ChangeTagsStore', |
| 460 | 'RecentChangeLookup', |
| 461 | ] |
| 462 | ], |
| 463 | 'mergehistory' => [ |
| 464 | 'class' => ApiMergeHistory::class, |
| 465 | 'services' => [ |
| 466 | 'MergeHistoryFactory', |
| 467 | ], |
| 468 | ], |
| 469 | 'setpagelanguage' => [ |
| 470 | 'class' => ApiSetPageLanguage::class, |
| 471 | 'services' => [ |
| 472 | 'DBLoadBalancerFactory', |
| 473 | 'LanguageNameUtils', |
| 474 | ] |
| 475 | ], |
| 476 | 'changecontentmodel' => [ |
| 477 | 'class' => ApiChangeContentModel::class, |
| 478 | 'services' => [ |
| 479 | 'ContentHandlerFactory', |
| 480 | 'ContentModelChangeFactory', |
| 481 | ] |
| 482 | ], |
| 483 | 'acquiretempusername' => [ |
| 484 | 'class' => ApiAcquireTempUserName::class, |
| 485 | 'services' => [ |
| 486 | 'TempUserCreator', |
| 487 | ] |
| 488 | ], |
| 489 | 'languagesearch' => [ |
| 490 | 'class' => ApiLanguageSearch::class, |
| 491 | 'services' => [ |
| 492 | 'LanguageNameSearch', |
| 493 | ], |
| 494 | ], |
| 495 | ]; |
| 496 | |
| 497 | /** |
| 498 | * List of available formats: format name => format class |
| 499 | */ |
| 500 | private const FORMATS = [ |
| 501 | 'json' => [ |
| 502 | 'class' => ApiFormatJson::class, |
| 503 | ], |
| 504 | 'jsonfm' => [ |
| 505 | 'class' => ApiFormatJson::class, |
| 506 | ], |
| 507 | 'php' => [ |
| 508 | 'class' => ApiFormatPhp::class, |
| 509 | ], |
| 510 | 'phpfm' => [ |
| 511 | 'class' => ApiFormatPhp::class, |
| 512 | ], |
| 513 | 'xml' => [ |
| 514 | 'class' => ApiFormatXml::class, |
| 515 | ], |
| 516 | 'xmlfm' => [ |
| 517 | 'class' => ApiFormatXml::class, |
| 518 | ], |
| 519 | 'rawfm' => [ |
| 520 | 'class' => ApiFormatJson::class, |
| 521 | ], |
| 522 | 'none' => [ |
| 523 | 'class' => ApiFormatNone::class, |
| 524 | ], |
| 525 | ]; |
| 526 | |
| 527 | /** @var ApiFormatBase|null */ |
| 528 | private $mPrinter; |
| 529 | |
| 530 | /** @var ApiModuleManager */ |
| 531 | private $mModuleMgr; |
| 532 | |
| 533 | /** @var ApiResult */ |
| 534 | private $mResult; |
| 535 | |
| 536 | /** @var ApiErrorFormatter */ |
| 537 | private $mErrorFormatter; |
| 538 | |
| 539 | /** @var ApiParamValidator */ |
| 540 | private $mParamValidator; |
| 541 | |
| 542 | /** @var ApiContinuationManager|null */ |
| 543 | private $mContinuationManager; |
| 544 | |
| 545 | /** @var string|null */ |
| 546 | private $mAction; |
| 547 | |
| 548 | /** @var bool */ |
| 549 | private $mEnableWrite; |
| 550 | |
| 551 | /** @var bool */ |
| 552 | private $mInternalMode; |
| 553 | |
| 554 | /** @var ApiBase */ |
| 555 | private $mModule; |
| 556 | |
| 557 | /** @var string */ |
| 558 | private $mCacheMode = 'private'; |
| 559 | |
| 560 | /** @var array */ |
| 561 | private $mCacheControl = []; |
| 562 | |
| 563 | /** @var array */ |
| 564 | private $mParamsUsed = []; |
| 565 | |
| 566 | /** @var array */ |
| 567 | private $mParamsSensitive = []; |
| 568 | |
| 569 | /** @var bool|null Cached return value from self::lacksSameOriginSecurity() */ |
| 570 | private $lacksSameOriginSecurity = null; |
| 571 | |
| 572 | /** @var StatsFactory */ |
| 573 | private $statsFactory; |
| 574 | |
| 575 | /** |
| 576 | * Constructs an instance of ApiMain that utilizes the module and format specified by $request. |
| 577 | * |
| 578 | * @stable to call |
| 579 | * @param IContextSource|WebRequest|null $context If this is an instance of |
| 580 | * MediaWiki\Request\FauxRequest, errors are thrown and no printing occurs |
| 581 | * @param bool $enableWrite Should be set to true if the api may modify data |
| 582 | * @param bool|null $internal Whether the API request is an internal faux |
| 583 | * request. If null or not given, the request is assumed to be internal |
| 584 | * if $context contains a FauxRequest. |
| 585 | */ |
| 586 | public function __construct( $context = null, $enableWrite = false, $internal = null ) { |
| 587 | if ( $context === null ) { |
| 588 | $context = RequestContext::getMain(); |
| 589 | } elseif ( $context instanceof WebRequest ) { |
| 590 | // BC for pre-1.19 |
| 591 | $request = $context; |
| 592 | $context = RequestContext::getMain(); |
| 593 | } |
| 594 | // We set a derivative context so we can change stuff later |
| 595 | $derivativeContext = new DerivativeContext( $context ); |
| 596 | $this->setContext( $derivativeContext ); |
| 597 | |
| 598 | if ( isset( $request ) ) { |
| 599 | $derivativeContext->setRequest( $request ); |
| 600 | } else { |
| 601 | $request = $this->getRequest(); |
| 602 | } |
| 603 | |
| 604 | $this->mInternalMode = $internal ?? ( $request instanceof FauxRequest ); |
| 605 | |
| 606 | // Special handling for the main module: $parent === $this |
| 607 | parent::__construct( $this, $this->mInternalMode ? 'main_int' : 'main' ); |
| 608 | |
| 609 | $config = $this->getConfig(); |
| 610 | // TODO inject stuff, see T265644 |
| 611 | $services = MediaWikiServices::getInstance(); |
| 612 | |
| 613 | if ( !$this->mInternalMode ) { |
| 614 | // If we're in a mode that breaks the same-origin policy, strip |
| 615 | // user credentials for security. |
| 616 | if ( $this->lacksSameOriginSecurity() ) { |
| 617 | wfDebug( "API: stripping user credentials when the same-origin policy is not applied" ); |
| 618 | $user = $services->getUserFactory()->newAnonymous(); |
| 619 | $derivativeContext->setUser( $user ); |
| 620 | $request->response()->header( 'MediaWiki-Login-Suppressed: true' ); |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | $this->mParamValidator = new ApiParamValidator( |
| 625 | $this, |
| 626 | $services->getObjectFactory() |
| 627 | ); |
| 628 | |
| 629 | $this->statsFactory = $services->getStatsFactory(); |
| 630 | |
| 631 | $this->mResult = |
| 632 | new ApiResult( $this->getConfig()->get( MainConfigNames::APIMaxResultSize ) ); |
| 633 | |
| 634 | // Setup uselang. This doesn't use $this->getParameter() |
| 635 | // because we're not ready to handle errors yet. |
| 636 | // Optimisation: Avoid slow getVal(), this isn't user-generated content. |
| 637 | $uselang = $request->getRawVal( 'uselang' ) ?? self::API_DEFAULT_USELANG; |
| 638 | if ( $uselang === 'user' ) { |
| 639 | // Assume the parent context is going to return the user language |
| 640 | // for uselang=user (see T85635). |
| 641 | } else { |
| 642 | if ( $uselang === 'content' ) { |
| 643 | $uselang = $services->getContentLanguageCode()->toString(); |
| 644 | } |
| 645 | $code = RequestContext::sanitizeLangCode( $uselang ); |
| 646 | $derivativeContext->setLanguage( $code ); |
| 647 | if ( !$this->mInternalMode ) { |
| 648 | // phpcs:disable MediaWiki.Usage.ExtendClassUsage.FunctionVarUsage |
| 649 | global $wgLang; |
| 650 | $wgLang = $derivativeContext->getLanguage(); |
| 651 | RequestContext::getMain()->setLanguage( $wgLang ); |
| 652 | // phpcs:enable |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | // Set up the error formatter. This doesn't use $this->getParameter() |
| 657 | // because we're not ready to handle errors yet. |
| 658 | // Optimisation: Avoid slow getVal(), this isn't user-generated content. |
| 659 | $errorFormat = $request->getRawVal( 'errorformat' ) ?? 'bc'; |
| 660 | $errorLangCode = $request->getRawVal( 'errorlang' ) ?? 'uselang'; |
| 661 | $errorsUseDB = $request->getCheck( 'errorsuselocal' ); |
| 662 | if ( in_array( $errorFormat, [ 'plaintext', 'wikitext', 'html', 'raw', 'none' ], true ) ) { |
| 663 | if ( $errorLangCode === 'uselang' ) { |
| 664 | $errorLang = $this->getLanguage(); |
| 665 | } elseif ( $errorLangCode === 'content' ) { |
| 666 | $errorLang = $services->getContentLanguage(); |
| 667 | } else { |
| 668 | $errorLangCode = RequestContext::sanitizeLangCode( $errorLangCode ); |
| 669 | $errorLang = $services->getLanguageFactory()->getLanguage( $errorLangCode ); |
| 670 | } |
| 671 | $this->mErrorFormatter = new ApiErrorFormatter( |
| 672 | $this->mResult, |
| 673 | $errorLang, |
| 674 | $errorFormat, |
| 675 | $errorsUseDB |
| 676 | ); |
| 677 | } else { |
| 678 | $this->mErrorFormatter = new ApiErrorFormatter_BackCompat( $this->mResult ); |
| 679 | } |
| 680 | $this->mResult->setErrorFormatter( $this->getErrorFormatter() ); |
| 681 | |
| 682 | $this->mModuleMgr = new ApiModuleManager( |
| 683 | $this, |
| 684 | $services->getObjectFactory() |
| 685 | ); |
| 686 | $this->mModuleMgr->addModules( self::MODULES, 'action' ); |
| 687 | $this->mModuleMgr->addModules( $config->get( MainConfigNames::APIModules ), 'action' ); |
| 688 | $this->mModuleMgr->addModules( self::FORMATS, 'format' ); |
| 689 | $this->mModuleMgr->addModules( $config->get( MainConfigNames::APIFormatModules ), 'format' ); |
| 690 | |
| 691 | $this->getHookRunner()->onApiMain__moduleManager( $this->mModuleMgr ); |
| 692 | |
| 693 | $this->mContinuationManager = null; |
| 694 | $this->mEnableWrite = $enableWrite; |
| 695 | } |
| 696 | |
| 697 | /** |
| 698 | * Return true if the API was started by other PHP code using MediaWiki\Request\FauxRequest |
| 699 | * @return bool |
| 700 | */ |
| 701 | public function isInternalMode() { |
| 702 | return $this->mInternalMode; |
| 703 | } |
| 704 | |
| 705 | /** |
| 706 | * Get the ApiResult object associated with current request |
| 707 | * |
| 708 | * @return ApiResult |
| 709 | */ |
| 710 | public function getResult() { |
| 711 | return $this->mResult; |
| 712 | } |
| 713 | |
| 714 | /** |
| 715 | * Get the security flag for the current request |
| 716 | * @return bool |
| 717 | */ |
| 718 | public function lacksSameOriginSecurity() { |
| 719 | if ( $this->lacksSameOriginSecurity !== null ) { |
| 720 | return $this->lacksSameOriginSecurity; |
| 721 | } |
| 722 | |
| 723 | $request = $this->getRequest(); |
| 724 | |
| 725 | // JSONP mode |
| 726 | if ( $request->getCheck( 'callback' ) || |
| 727 | // Anonymous CORS |
| 728 | $request->getRawVal( 'origin' ) === '*' || |
| 729 | // Header to be used from XMLHTTPRequest when the request might |
| 730 | // otherwise be used for XSS. |
| 731 | $request->getHeader( 'Treat-as-Untrusted' ) !== false || |
| 732 | ( |
| 733 | // Authenticated CORS with unsupported session provider (including preflight request) |
| 734 | $request->getCheck( 'crossorigin' ) && |
| 735 | !$request->getSession()->getProvider()->safeAgainstCsrf() |
| 736 | ) |
| 737 | ) { |
| 738 | $this->lacksSameOriginSecurity = true; |
| 739 | return true; |
| 740 | } |
| 741 | |
| 742 | // Allow extensions to override. |
| 743 | $this->lacksSameOriginSecurity = !$this->getHookRunner() |
| 744 | ->onRequestHasSameOriginSecurity( $request ); |
| 745 | return $this->lacksSameOriginSecurity; |
| 746 | } |
| 747 | |
| 748 | /** |
| 749 | * Get the ApiErrorFormatter object associated with current request |
| 750 | * @return ApiErrorFormatter |
| 751 | */ |
| 752 | public function getErrorFormatter() { |
| 753 | return $this->mErrorFormatter; |
| 754 | } |
| 755 | |
| 756 | /** |
| 757 | * @return ApiContinuationManager|null |
| 758 | */ |
| 759 | public function getContinuationManager() { |
| 760 | return $this->mContinuationManager; |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * @param ApiContinuationManager|null $manager |
| 765 | */ |
| 766 | public function setContinuationManager( ?ApiContinuationManager $manager = null ) { |
| 767 | if ( $manager !== null && $this->mContinuationManager !== null ) { |
| 768 | throw new UnexpectedValueException( |
| 769 | __METHOD__ . ': tried to set manager from ' . $manager->getSource() . |
| 770 | ' when a manager is already set from ' . $this->mContinuationManager->getSource() |
| 771 | ); |
| 772 | } |
| 773 | $this->mContinuationManager = $manager; |
| 774 | } |
| 775 | |
| 776 | public function getParamValidator(): ApiParamValidator { |
| 777 | return $this->mParamValidator; |
| 778 | } |
| 779 | |
| 780 | /** |
| 781 | * Get the API module object. Only works after executeAction() |
| 782 | * |
| 783 | * @return ApiBase |
| 784 | */ |
| 785 | public function getModule() { |
| 786 | return $this->mModule; |
| 787 | } |
| 788 | |
| 789 | /** |
| 790 | * Get the stats factory. |
| 791 | * |
| 792 | * @return StatsFactory |
| 793 | */ |
| 794 | public function getStatsFactory() { |
| 795 | return $this->getMain()->statsFactory; |
| 796 | } |
| 797 | |
| 798 | /** |
| 799 | * Get the result formatter object. Only works after setupExecuteAction() |
| 800 | * |
| 801 | * @return ApiFormatBase |
| 802 | */ |
| 803 | public function getPrinter() { |
| 804 | return $this->mPrinter; |
| 805 | } |
| 806 | |
| 807 | /** |
| 808 | * Set how long the response should be cached. |
| 809 | * |
| 810 | * @param int $maxage |
| 811 | */ |
| 812 | public function setCacheMaxAge( $maxage ) { |
| 813 | $this->setCacheControl( [ |
| 814 | 'max-age' => $maxage, |
| 815 | 's-maxage' => $maxage |
| 816 | ] ); |
| 817 | } |
| 818 | |
| 819 | /** |
| 820 | * Set the type of caching headers which will be sent. |
| 821 | * |
| 822 | * @param string $mode One of: |
| 823 | * - 'public': Cache this object in public caches, if the maxage or smaxage |
| 824 | * parameter is set, or if setCacheMaxAge() was called. If a maximum age is |
| 825 | * not provided by any of these means, the object will be private. |
| 826 | * - 'private': Cache this object only in private client-side caches. |
| 827 | * - 'anon-public-user-private': Make this object cacheable for logged-out |
| 828 | * users, but private for logged-in users. IMPORTANT: If this is set, it must be |
| 829 | * set consistently for a given URL, it cannot be set differently depending on |
| 830 | * things like the contents of the database, or whether the user is logged in. |
| 831 | * |
| 832 | * If the wiki does not allow anonymous users to read it, the mode set here |
| 833 | * will be ignored, and private caching headers will always be sent. In other words, |
| 834 | * the "public" mode is equivalent to saying that the data sent is as public as a page |
| 835 | * view. |
| 836 | * |
| 837 | * For user-dependent data, the private mode should generally be used. The |
| 838 | * anon-public-user-private mode should only be used where there is a particularly |
| 839 | * good performance reason for caching the anonymous response, but where the |
| 840 | * response to logged-in users may differ, or may contain private data. |
| 841 | * |
| 842 | * If this function is never called, then the default will be the private mode. |
| 843 | */ |
| 844 | public function setCacheMode( $mode ) { |
| 845 | if ( !in_array( $mode, [ 'private', 'public', 'anon-public-user-private' ] ) ) { |
| 846 | wfDebug( __METHOD__ . ": unrecognised cache mode \"$mode\"" ); |
| 847 | |
| 848 | // Ignore for forwards-compatibility |
| 849 | return; |
| 850 | } |
| 851 | |
| 852 | if ( !$this->getPermissionManager()->isEveryoneAllowed( 'read' ) ) { |
| 853 | // Private wiki, only private headers |
| 854 | if ( $mode !== 'private' ) { |
| 855 | wfDebug( __METHOD__ . ": ignoring request for $mode cache mode, private wiki" ); |
| 856 | |
| 857 | return; |
| 858 | } |
| 859 | } |
| 860 | |
| 861 | if ( $mode === 'public' && $this->getParameter( 'uselang' ) === 'user' ) { |
| 862 | // User language is used for i18n, so we don't want to publicly |
| 863 | // cache. Anons are ok, because if they have non-default language |
| 864 | // then there's an appropriate Vary header set by whatever set |
| 865 | // their non-default language. |
| 866 | wfDebug( __METHOD__ . ": downgrading cache mode 'public' to " . |
| 867 | "'anon-public-user-private' due to uselang=user" ); |
| 868 | $mode = 'anon-public-user-private'; |
| 869 | } |
| 870 | |
| 871 | wfDebug( __METHOD__ . ": setting cache mode $mode" ); |
| 872 | $this->mCacheMode = $mode; |
| 873 | } |
| 874 | |
| 875 | /** @inheritDoc */ |
| 876 | public function getCacheMode() { |
| 877 | return $this->mCacheMode; |
| 878 | } |
| 879 | |
| 880 | /** |
| 881 | * Set directives (key/value pairs) for the Cache-Control header. |
| 882 | * Boolean values will be formatted as such, by including or omitting |
| 883 | * without an equals sign. |
| 884 | * |
| 885 | * Cache control values set here will only be used if the cache mode is not |
| 886 | * private, see setCacheMode(). |
| 887 | * |
| 888 | * @param array $directives |
| 889 | */ |
| 890 | public function setCacheControl( $directives ) { |
| 891 | $this->mCacheControl = $directives + $this->mCacheControl; |
| 892 | } |
| 893 | |
| 894 | /** |
| 895 | * Create an instance of an output formatter by its name |
| 896 | * |
| 897 | * @param string $format |
| 898 | * |
| 899 | * @return ApiFormatBase |
| 900 | */ |
| 901 | public function createPrinterByName( $format ) { |
| 902 | $printer = $this->mModuleMgr->getModule( $format, 'format', /* $ignoreCache */ true ); |
| 903 | if ( $printer === null ) { |
| 904 | $this->dieWithError( |
| 905 | [ 'apierror-unknownformat', wfEscapeWikiText( $format ) ], 'unknown_format' |
| 906 | ); |
| 907 | } |
| 908 | |
| 909 | // @phan-suppress-next-line PhanTypeMismatchReturnSuperType |
| 910 | return $printer; |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * Execute api request. Any errors will be handled if the API was called by the remote client. |
| 915 | */ |
| 916 | public function execute() { |
| 917 | if ( $this->mInternalMode ) { |
| 918 | $this->executeAction(); |
| 919 | } else { |
| 920 | $this->executeActionWithErrorHandling(); |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | /** |
| 925 | * Execute an action, and in case of an error, erase whatever partial results |
| 926 | * have been accumulated, and replace it with an error message and a help screen. |
| 927 | */ |
| 928 | protected function executeActionWithErrorHandling() { |
| 929 | // Verify the CORS header before executing the action |
| 930 | if ( !$this->handleCORS() ) { |
| 931 | // handleCORS() has sent a 403, abort |
| 932 | return; |
| 933 | } |
| 934 | |
| 935 | // Exit here if the request method was OPTIONS |
| 936 | // (assume there will be a followup GET or POST) |
| 937 | if ( $this->getRequest()->getMethod() === 'OPTIONS' ) { |
| 938 | return; |
| 939 | } |
| 940 | |
| 941 | // In case an error occurs during data output, |
| 942 | // clear the output buffer and print just the error information |
| 943 | $obLevel = ob_get_level(); |
| 944 | ob_start(); |
| 945 | |
| 946 | $t = microtime( true ); |
| 947 | $isError = false; |
| 948 | try { |
| 949 | $this->executeAction(); |
| 950 | $runTime = microtime( true ) - $t; |
| 951 | $this->logRequest( $runTime ); |
| 952 | |
| 953 | $this->statsFactory->getTiming( 'api_executeTiming_seconds' ) |
| 954 | ->setLabel( 'module', $this->mModule->getModuleName() ) |
| 955 | ->observe( 1000 * $runTime ); |
| 956 | |
| 957 | if ( !$this->mModule || $this->mModule->getModuleName() !== 'query' ) { |
| 958 | // Skip query module metrics; we will record them in the query module itself. |
| 959 | $this->recordUnifiedMetrics(); |
| 960 | } |
| 961 | } catch ( Throwable $e ) { |
| 962 | // If executeAction threw before the time was set, reset it |
| 963 | $runTime ??= microtime( true ) - $t; |
| 964 | $this->handleException( $e, $runTime ); |
| 965 | $this->logRequest( microtime( true ) - $t, $e ); |
| 966 | $isError = true; |
| 967 | } |
| 968 | |
| 969 | // Disable the client cache on the output so that BlockManager::trackBlockWithCookie is executed |
| 970 | // as part of MediaWiki::preOutputCommit(). |
| 971 | if ( |
| 972 | $this->mCacheMode === 'private' |
| 973 | || ( |
| 974 | $this->mCacheMode === 'anon-public-user-private' |
| 975 | && $this->getRequest()->getSession()->isPersistent() |
| 976 | ) |
| 977 | ) { |
| 978 | $this->getContext()->getOutput()->disableClientCache(); |
| 979 | $this->getContext()->getOutput()->considerCacheSettingsFinal(); |
| 980 | } |
| 981 | |
| 982 | // Commit DBs and send any related cookies and headers |
| 983 | MediaWiki::preOutputCommit( $this->getContext() ); |
| 984 | |
| 985 | // Send cache headers after any code which might generate an error, to |
| 986 | // avoid sending public cache headers for errors. |
| 987 | $this->sendCacheHeaders( $isError ); |
| 988 | |
| 989 | // Executing the action might have already messed with the output |
| 990 | // buffers. |
| 991 | while ( ob_get_level() > $obLevel ) { |
| 992 | ob_end_flush(); |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | /** |
| 997 | * Handle a throwable as an API response |
| 998 | * |
| 999 | * @since 1.23 |
| 1000 | * @param Throwable $e |
| 1001 | * @param float $latency Optional value for process runtime, in microseconds, for metrics |
| 1002 | */ |
| 1003 | protected function handleException( Throwable $e, $latency = 0 ) { |
| 1004 | $statsModuleName = $this->mModule ? $this->mModule->getModuleName() : 'main'; |
| 1005 | |
| 1006 | // Collect stats on errors (T396613). |
| 1007 | // NOTE: We only count fatal errors, a mere call to addError() or |
| 1008 | // addWarning() does not count towards these states. That could |
| 1009 | // be added in the future, but should use a different stats key. |
| 1010 | $stats = $this->statsFactory->getCounter( 'api_errors' ) |
| 1011 | ->setLabel( 'module', $statsModuleName ); |
| 1012 | |
| 1013 | // T65145: Rollback any open database transactions |
| 1014 | if ( !$e instanceof ApiUsageException ) { |
| 1015 | // ApiUsageExceptions are intentional, so don't rollback if that's the case |
| 1016 | MWExceptionHandler::rollbackPrimaryChangesAndLog( |
| 1017 | $e, |
| 1018 | MWExceptionHandler::CAUGHT_BY_ENTRYPOINT |
| 1019 | ); |
| 1020 | $stats->setLabel( 'exception_cause', 'server-error' ); |
| 1021 | } else { |
| 1022 | $stats->setLabel( 'exception_cause', 'client-error' ); |
| 1023 | } |
| 1024 | |
| 1025 | // Allow extra cleanup and logging |
| 1026 | $this->getHookRunner()->onApiMain__onException( $this, $e ); |
| 1027 | |
| 1028 | // Handle any kind of exception by outputting properly formatted error message. |
| 1029 | // If this fails, an unhandled exception should be thrown so that global error |
| 1030 | // handler will process and log it. |
| 1031 | |
| 1032 | $errCodes = $this->substituteResultWithError( $e ); |
| 1033 | sort( $errCodes ); |
| 1034 | |
| 1035 | // Error results should not be cached |
| 1036 | $this->setCacheMode( 'private' ); |
| 1037 | |
| 1038 | $response = $this->getRequest()->response(); |
| 1039 | $headerStr = 'MediaWiki-API-Error: ' . implode( ', ', $errCodes ); |
| 1040 | $response->header( $headerStr ); |
| 1041 | |
| 1042 | // Reset and print just the error message |
| 1043 | ob_clean(); |
| 1044 | |
| 1045 | // Printer may not be initialized if the extractRequestParams() fails for the main module |
| 1046 | $this->createErrorPrinter(); |
| 1047 | |
| 1048 | $stats->setLabel( 'error_code', implode( '_', $errCodes ) ); |
| 1049 | $stats->increment(); |
| 1050 | |
| 1051 | // Unified metrics |
| 1052 | if ( !$this->mModule || $this->mModule->getModuleName() !== 'query' ) { |
| 1053 | // Skip query module metrics; we will record them in the query module itself. |
| 1054 | $this->recordUnifiedMetrics( |
| 1055 | [ |
| 1056 | 'status' => implode( '_', $errCodes ), // Failure codes |
| 1057 | ] |
| 1058 | ); |
| 1059 | |
| 1060 | } |
| 1061 | |
| 1062 | // Get desired HTTP code from an ApiUsageException. Don't use codes from other |
| 1063 | // exception types, as they are unlikely to be intended as an HTTP code. |
| 1064 | $httpCode = $e instanceof ApiUsageException ? $e->getCode() : 0; |
| 1065 | |
| 1066 | $failed = false; |
| 1067 | try { |
| 1068 | $this->printResult( $httpCode ); |
| 1069 | } catch ( ApiUsageException $ex ) { |
| 1070 | // The error printer itself is failing. Try suppressing its request |
| 1071 | // parameters and redo. |
| 1072 | $failed = true; |
| 1073 | $this->addWarning( 'apiwarn-errorprinterfailed' ); |
| 1074 | foreach ( $ex->getStatusValue()->getMessages() as $error ) { |
| 1075 | try { |
| 1076 | $this->mPrinter->addWarning( $error ); |
| 1077 | } catch ( Throwable ) { |
| 1078 | // WTF? |
| 1079 | $this->addWarning( $error ); |
| 1080 | } |
| 1081 | } |
| 1082 | } |
| 1083 | if ( $failed ) { |
| 1084 | $this->mPrinter = null; |
| 1085 | $this->createErrorPrinter(); |
| 1086 | // @phan-suppress-next-line PhanNonClassMethodCall False positive |
| 1087 | $this->mPrinter->forceDefaultParams(); |
| 1088 | if ( $httpCode ) { |
| 1089 | $response->statusHeader( 200 ); // Reset in case the fallback doesn't want a non-200 |
| 1090 | } |
| 1091 | $this->printResult( $httpCode ); |
| 1092 | } |
| 1093 | } |
| 1094 | |
| 1095 | /** |
| 1096 | * Handle a throwable from the ApiBeforeMain hook. |
| 1097 | * |
| 1098 | * This tries to print the throwable as an API response, to be more |
| 1099 | * friendly to clients. If it fails, it will rethrow the throwable. |
| 1100 | * |
| 1101 | * @since 1.23 |
| 1102 | * @param Throwable $e |
| 1103 | * @throws Throwable |
| 1104 | */ |
| 1105 | public static function handleApiBeforeMainException( Throwable $e ) { |
| 1106 | ob_start(); |
| 1107 | |
| 1108 | try { |
| 1109 | $main = new self( RequestContext::getMain(), false ); |
| 1110 | $main->handleException( $e ); |
| 1111 | $main->logRequest( 0, $e ); |
| 1112 | } catch ( Throwable ) { |
| 1113 | // Nope, even that didn't work. Punt. |
| 1114 | throw $e; |
| 1115 | } |
| 1116 | |
| 1117 | // Reset cache headers |
| 1118 | $main->sendCacheHeaders( true ); |
| 1119 | |
| 1120 | ob_end_flush(); |
| 1121 | } |
| 1122 | |
| 1123 | /** |
| 1124 | * Check the &origin= and/or &crossorigin= query parameters and respond appropriately. |
| 1125 | * |
| 1126 | * If no origin or crossorigin parameter is present, nothing happens. |
| 1127 | * If both are present, a 403 status code is set and false is returned. |
| 1128 | * |
| 1129 | * If an origin parameter is present but doesn't match the Origin header, a 403 status code |
| 1130 | * is set and false is returned. |
| 1131 | * If the parameter and the header do match, the header is checked against $wgCrossSiteAJAXdomains |
| 1132 | * and $wgCrossSiteAJAXdomainExceptions, and if the origin qualifies, the appropriate CORS |
| 1133 | * headers are set. |
| 1134 | * https://www.w3.org/TR/cors/#resource-requests |
| 1135 | * https://www.w3.org/TR/cors/#resource-preflight-requests |
| 1136 | * |
| 1137 | * If the crossorigin parameter is set, but the current session provider is not safe against CSRF, |
| 1138 | * a 403 status code is set and false is returned. |
| 1139 | * If it is set and the session is safe, then the appropriate CORS headers are set. |
| 1140 | * |
| 1141 | * @return bool False if the caller should abort (403 case), true otherwise (all other cases) |
| 1142 | * @internal For use in SessionProvider |
| 1143 | */ |
| 1144 | public function handleCORS() { |
| 1145 | $originParam = $this->getParameter( 'origin' ); // defaults to null |
| 1146 | $crossOriginParam = $this->getParameter( 'crossorigin' ); // defaults to false |
| 1147 | if ( $originParam === null && !$crossOriginParam ) { |
| 1148 | // No origin/crossorigin parameter, nothing to do |
| 1149 | return true; |
| 1150 | } |
| 1151 | |
| 1152 | $request = $this->getRequest(); |
| 1153 | $response = $request->response(); |
| 1154 | $requestedMethod = $request->getHeader( 'Access-Control-Request-Method' ); |
| 1155 | $preflight = $request->getMethod() === 'OPTIONS' && $requestedMethod !== false; |
| 1156 | |
| 1157 | $allowTiming = false; |
| 1158 | $varyOrigin = true; |
| 1159 | |
| 1160 | if ( $originParam !== null && $crossOriginParam ) { |
| 1161 | $response->statusHeader( 403 ); |
| 1162 | $response->header( 'Cache-control: no-cache' ); |
| 1163 | echo "'origin' and 'crossorigin' parameters cannot be used together\n"; |
| 1164 | |
| 1165 | return false; |
| 1166 | } |
| 1167 | if ( $crossOriginParam && !$request->getSession()->getProvider()->safeAgainstCsrf() && !$preflight ) { |
| 1168 | $response->statusHeader( 403 ); |
| 1169 | $response->header( 'Cache-control: no-cache' ); |
| 1170 | $language = MediaWikiServices::getInstance()->getLanguageFactory()->getLanguage( 'en' ); |
| 1171 | $described = $request->getSession()->getProvider()->describe( $language ); |
| 1172 | echo "'crossorigin' cannot be used with $described\n"; |
| 1173 | |
| 1174 | return false; |
| 1175 | } |
| 1176 | |
| 1177 | if ( $originParam === '*' || $crossOriginParam ) { |
| 1178 | // Request for CORS without browser-supplied credentials (e.g. cookies): |
| 1179 | // may be anonymous (origin=*) or authenticated with request-supplied |
| 1180 | // credentials (crossorigin=1 + Authorization header). |
| 1181 | // Technically we should check for the presence of an Origin header |
| 1182 | // and not process it as CORS if it's not set, but that would |
| 1183 | // require us to vary on Origin for all 'origin=*' requests which |
| 1184 | // we don't want to do. |
| 1185 | $matchedOrigin = true; |
| 1186 | $allowOrigin = '*'; |
| 1187 | $allowCredentials = 'false'; |
| 1188 | $varyOrigin = false; // No need to vary |
| 1189 | } else { |
| 1190 | // Non-anonymous CORS, check we allow the domain |
| 1191 | |
| 1192 | // Origin: header is a space-separated list of origins, check all of them |
| 1193 | $originHeader = $request->getHeader( 'Origin' ); |
| 1194 | if ( $originHeader === false ) { |
| 1195 | $origins = []; |
| 1196 | } else { |
| 1197 | $originHeader = trim( $originHeader ); |
| 1198 | $origins = preg_split( '/\s+/', $originHeader ); |
| 1199 | } |
| 1200 | |
| 1201 | if ( !in_array( $originParam, $origins ) ) { |
| 1202 | // origin parameter set but incorrect |
| 1203 | // Send a 403 response |
| 1204 | $response->statusHeader( 403 ); |
| 1205 | $response->header( 'Cache-Control: no-cache' ); |
| 1206 | echo "'origin' parameter does not match Origin header\n"; |
| 1207 | |
| 1208 | return false; |
| 1209 | } |
| 1210 | |
| 1211 | $config = $this->getConfig(); |
| 1212 | $origin = Origin::parseHeaderList( $origins ); |
| 1213 | $matchedOrigin = $origin->match( |
| 1214 | $config->get( MainConfigNames::CrossSiteAJAXdomains ), |
| 1215 | $config->get( MainConfigNames::CrossSiteAJAXdomainExceptions ) |
| 1216 | ); |
| 1217 | |
| 1218 | $allowOrigin = $originHeader; |
| 1219 | $allowCredentials = 'true'; |
| 1220 | $allowTiming = $originHeader; |
| 1221 | } |
| 1222 | |
| 1223 | if ( $matchedOrigin ) { |
| 1224 | if ( $preflight ) { |
| 1225 | // We allow the actual request to send the following headers |
| 1226 | $requestedHeaders = $request->getHeader( 'Access-Control-Request-Headers' ); |
| 1227 | $allowedHeaders = $this->getConfig()->get( MainConfigNames::AllowedCorsHeaders ); |
| 1228 | if ( $requestedHeaders !== false ) { |
| 1229 | if ( !self::matchRequestedHeaders( $requestedHeaders, $allowedHeaders ) ) { |
| 1230 | $response->header( 'MediaWiki-CORS-Rejection: Unsupported header requested in preflight' ); |
| 1231 | return true; |
| 1232 | } |
| 1233 | $response->header( 'Access-Control-Allow-Headers: ' . $requestedHeaders ); |
| 1234 | } |
| 1235 | |
| 1236 | // We only allow the actual request to be GET, POST, or HEAD |
| 1237 | $response->header( 'Access-Control-Allow-Methods: POST, GET, HEAD' ); |
| 1238 | } |
| 1239 | |
| 1240 | $response->header( "Access-Control-Allow-Origin: $allowOrigin" ); |
| 1241 | $response->header( "Access-Control-Allow-Credentials: $allowCredentials" ); |
| 1242 | // https://www.w3.org/TR/resource-timing/#timing-allow-origin |
| 1243 | if ( $allowTiming !== false ) { |
| 1244 | $response->header( "Timing-Allow-Origin: $allowTiming" ); |
| 1245 | } |
| 1246 | |
| 1247 | if ( !$preflight ) { |
| 1248 | $response->header( |
| 1249 | 'Access-Control-Expose-Headers: MediaWiki-API-Error, Retry-After, X-Database-Lag, ' |
| 1250 | . 'MediaWiki-Login-Suppressed' |
| 1251 | ); |
| 1252 | } |
| 1253 | } else { |
| 1254 | $response->header( 'MediaWiki-CORS-Rejection: Origin mismatch' ); |
| 1255 | } |
| 1256 | |
| 1257 | if ( $varyOrigin ) { |
| 1258 | $this->getOutput()->addVaryHeader( 'Origin' ); |
| 1259 | } |
| 1260 | |
| 1261 | return true; |
| 1262 | } |
| 1263 | |
| 1264 | /** |
| 1265 | * Attempt to validate the value of Access-Control-Request-Headers against a list |
| 1266 | * of headers that we allow the follow up request to send. |
| 1267 | * |
| 1268 | * @param string $requestedHeaders Comma separated list of HTTP headers |
| 1269 | * @param string[] $allowedHeaders List of allowed HTTP headers |
| 1270 | * @return bool True if all requested headers are in the list of allowed headers |
| 1271 | */ |
| 1272 | protected static function matchRequestedHeaders( $requestedHeaders, $allowedHeaders ) { |
| 1273 | if ( trim( $requestedHeaders ) === '' ) { |
| 1274 | return true; |
| 1275 | } |
| 1276 | $requestedHeaders = explode( ',', $requestedHeaders ); |
| 1277 | $allowedHeaders = array_change_key_case( |
| 1278 | array_fill_keys( $allowedHeaders, true ), CASE_LOWER ); |
| 1279 | foreach ( $requestedHeaders as $rHeader ) { |
| 1280 | $rHeader = strtolower( trim( $rHeader ) ); |
| 1281 | if ( !isset( $allowedHeaders[$rHeader] ) ) { |
| 1282 | LoggerFactory::getInstance( 'api-warning' )->warning( |
| 1283 | 'CORS preflight failed on requested header: {header}', [ |
| 1284 | 'header' => $rHeader |
| 1285 | ] |
| 1286 | ); |
| 1287 | return false; |
| 1288 | } |
| 1289 | } |
| 1290 | return true; |
| 1291 | } |
| 1292 | |
| 1293 | /** |
| 1294 | * Send caching headers |
| 1295 | * @param bool $isError Whether an error response is being output |
| 1296 | * @since 1.26 added $isError parameter |
| 1297 | */ |
| 1298 | protected function sendCacheHeaders( $isError ) { |
| 1299 | $response = $this->getRequest()->response(); |
| 1300 | $out = $this->getOutput(); |
| 1301 | |
| 1302 | $out->addVaryHeader( 'Treat-as-Untrusted' ); |
| 1303 | |
| 1304 | $config = $this->getConfig(); |
| 1305 | |
| 1306 | if ( $config->get( MainConfigNames::VaryOnXFP ) ) { |
| 1307 | $out->addVaryHeader( 'X-Forwarded-Proto' ); |
| 1308 | } |
| 1309 | |
| 1310 | if ( !$isError && $this->mModule && |
| 1311 | ( $this->getRequest()->getMethod() === 'GET' || $this->getRequest()->getMethod() === 'HEAD' ) |
| 1312 | ) { |
| 1313 | $etag = $this->mModule->getConditionalRequestData( 'etag' ); |
| 1314 | if ( $etag !== null ) { |
| 1315 | $response->header( "ETag: $etag" ); |
| 1316 | } |
| 1317 | $lastMod = $this->mModule->getConditionalRequestData( 'last-modified' ); |
| 1318 | if ( $lastMod !== null ) { |
| 1319 | $response->header( 'Last-Modified: ' . wfTimestamp( TS::RFC2822, $lastMod ) ); |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | // The logic should be: |
| 1324 | // $this->mCacheControl['max-age'] is set? |
| 1325 | // Use it, the module knows better than our guess. |
| 1326 | // !$this->mModule || $this->mModule->isWriteMode(), and mCacheMode is private? |
| 1327 | // Use 0 because we can guess caching is probably the wrong thing to do. |
| 1328 | // Use $this->getParameter( 'maxage' ), which already defaults to 0. |
| 1329 | $maxage = 0; |
| 1330 | if ( isset( $this->mCacheControl['max-age'] ) ) { |
| 1331 | $maxage = $this->mCacheControl['max-age']; |
| 1332 | } elseif ( ( !$isError && $this->mModule && !$this->mModule->isWriteMode() ) || |
| 1333 | $this->mCacheMode !== 'private' |
| 1334 | ) { |
| 1335 | $maxage = $this->getParameter( 'maxage' ); |
| 1336 | } |
| 1337 | $privateCache = 'private, must-revalidate, max-age=' . $maxage; |
| 1338 | |
| 1339 | if ( $this->mCacheMode == 'private' ) { |
| 1340 | $response->header( "Cache-Control: $privateCache" ); |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | if ( $this->mCacheMode == 'anon-public-user-private' ) { |
| 1345 | $out->addVaryHeader( 'Cookie' ); |
| 1346 | $response->header( $out->getVaryHeader() ); |
| 1347 | if ( $this->getRequest()->getSession()->isPersistent() ) { |
| 1348 | // Logged in or otherwise has session (e.g. anonymous users who have edited) |
| 1349 | // Mark request private |
| 1350 | $response->header( "Cache-Control: $privateCache" ); |
| 1351 | |
| 1352 | return; |
| 1353 | } // else anonymous, send public headers below |
| 1354 | } |
| 1355 | |
| 1356 | // Send public headers |
| 1357 | $response->header( $out->getVaryHeader() ); |
| 1358 | |
| 1359 | // If nobody called setCacheMaxAge(), use the (s)maxage parameters |
| 1360 | if ( !isset( $this->mCacheControl['s-maxage'] ) ) { |
| 1361 | $this->mCacheControl['s-maxage'] = $this->getParameter( 'smaxage' ); |
| 1362 | } |
| 1363 | if ( !isset( $this->mCacheControl['max-age'] ) ) { |
| 1364 | $this->mCacheControl['max-age'] = $this->getParameter( 'maxage' ); |
| 1365 | } |
| 1366 | |
| 1367 | if ( !$this->mCacheControl['s-maxage'] && !$this->mCacheControl['max-age'] ) { |
| 1368 | // Public cache not requested |
| 1369 | // Sending a Vary header in this case is harmless, and protects us |
| 1370 | // against conditional calls of setCacheMaxAge(). |
| 1371 | $response->header( "Cache-Control: $privateCache" ); |
| 1372 | |
| 1373 | return; |
| 1374 | } |
| 1375 | |
| 1376 | $this->mCacheControl['public'] = true; |
| 1377 | |
| 1378 | // Send an Expires header |
| 1379 | $maxAge = min( $this->mCacheControl['s-maxage'], $this->mCacheControl['max-age'] ); |
| 1380 | $expiryUnixTime = ( $maxAge == 0 ? 1 : time() + $maxAge ); |
| 1381 | $response->header( 'Expires: ' . wfTimestamp( TS::RFC2822, $expiryUnixTime ) ); |
| 1382 | |
| 1383 | // Construct the Cache-Control header |
| 1384 | $ccHeader = ''; |
| 1385 | $separator = ''; |
| 1386 | foreach ( $this->mCacheControl as $name => $value ) { |
| 1387 | if ( is_bool( $value ) ) { |
| 1388 | if ( $value ) { |
| 1389 | $ccHeader .= $separator . $name; |
| 1390 | $separator = ', '; |
| 1391 | } |
| 1392 | } else { |
| 1393 | $ccHeader .= $separator . "$name=$value"; |
| 1394 | $separator = ', '; |
| 1395 | } |
| 1396 | } |
| 1397 | |
| 1398 | $response->header( "Cache-Control: $ccHeader" ); |
| 1399 | } |
| 1400 | |
| 1401 | /** |
| 1402 | * Create the printer for error output |
| 1403 | */ |
| 1404 | private function createErrorPrinter() { |
| 1405 | if ( !$this->mPrinter ) { |
| 1406 | $value = $this->getRequest()->getVal( 'format', self::API_DEFAULT_FORMAT ); |
| 1407 | if ( !$this->mModuleMgr->isDefined( $value, 'format' ) ) { |
| 1408 | $value = self::API_DEFAULT_FORMAT; |
| 1409 | } |
| 1410 | // @phan-suppress-next-line PhanTypeMismatchArgumentNullable getVal does not return null here |
| 1411 | $this->mPrinter = $this->createPrinterByName( $value ); |
| 1412 | } |
| 1413 | |
| 1414 | // Printer may not be able to handle errors. This is particularly |
| 1415 | // likely if the module returns something for getCustomPrinter(). |
| 1416 | if ( !$this->mPrinter->canPrintErrors() ) { |
| 1417 | $this->mPrinter = $this->createPrinterByName( self::API_DEFAULT_FORMAT ); |
| 1418 | } |
| 1419 | } |
| 1420 | |
| 1421 | /** |
| 1422 | * Create an error message for the given throwable. |
| 1423 | * |
| 1424 | * If an ApiUsageException, errors/warnings will be extracted from the |
| 1425 | * embedded StatusValue. |
| 1426 | * |
| 1427 | * Any other throwable will be returned with a generic code and wrapper |
| 1428 | * text around the throwable's (presumably English) message as a single |
| 1429 | * error (no warnings). |
| 1430 | * |
| 1431 | * @param Throwable $e |
| 1432 | * @param string $type 'error' or 'warning' |
| 1433 | * @return ApiMessage[] |
| 1434 | * @since 1.27 |
| 1435 | */ |
| 1436 | protected function errorMessagesFromException( Throwable $e, $type = 'error' ) { |
| 1437 | $messages = []; |
| 1438 | if ( $e instanceof ApiUsageException ) { |
| 1439 | foreach ( $e->getStatusValue()->getMessages( $type ) as $msg ) { |
| 1440 | $messages[] = ApiMessage::create( $msg ); |
| 1441 | } |
| 1442 | } elseif ( $type !== 'error' ) { |
| 1443 | // None of the rest have any messages for non-error types |
| 1444 | } else { |
| 1445 | // TODO: Avoid embedding arbitrary class names in the error code. |
| 1446 | $class = preg_replace( '#^Wikimedia\\\\Rdbms\\\\#', '', get_class( $e ) ); |
| 1447 | $code = 'internal_api_error_' . $class; |
| 1448 | $data = [ 'errorclass' => get_class( $e ) ]; |
| 1449 | if ( MWExceptionRenderer::shouldShowExceptionDetails() ) { |
| 1450 | if ( $e instanceof ILocalizedException ) { |
| 1451 | $msg = $e->getMessageObject(); |
| 1452 | } elseif ( $e instanceof MessageSpecifier ) { |
| 1453 | $msg = Message::newFromSpecifier( $e ); |
| 1454 | } else { |
| 1455 | $msg = wfEscapeWikiText( $e->getMessage() ); |
| 1456 | } |
| 1457 | $params = [ 'apierror-exceptioncaught', WebRequest::getRequestId(), $msg ]; |
| 1458 | } else { |
| 1459 | $params = [ 'apierror-exceptioncaughttype', WebRequest::getRequestId(), get_class( $e ) ]; |
| 1460 | } |
| 1461 | |
| 1462 | $messages[] = ApiMessage::create( $params, $code, $data ); |
| 1463 | } |
| 1464 | return $messages; |
| 1465 | } |
| 1466 | |
| 1467 | /** |
| 1468 | * Replace the result data with the information about a throwable. |
| 1469 | * @param Throwable $e |
| 1470 | * @return string[] Error codes |
| 1471 | */ |
| 1472 | protected function substituteResultWithError( Throwable $e ) { |
| 1473 | $result = $this->getResult(); |
| 1474 | $formatter = $this->getErrorFormatter(); |
| 1475 | $config = $this->getConfig(); |
| 1476 | $errorCodes = []; |
| 1477 | |
| 1478 | // Remember existing warnings and errors across the reset |
| 1479 | $errors = $result->getResultData( [ 'errors' ] ); |
| 1480 | $warnings = $result->getResultData( [ 'warnings' ] ); |
| 1481 | $result->reset(); |
| 1482 | if ( $warnings !== null ) { |
| 1483 | $result->addValue( null, 'warnings', $warnings, ApiResult::NO_SIZE_CHECK ); |
| 1484 | } |
| 1485 | if ( $errors !== null ) { |
| 1486 | $result->addValue( null, 'errors', $errors, ApiResult::NO_SIZE_CHECK ); |
| 1487 | |
| 1488 | // Collect the copied error codes for the return value |
| 1489 | foreach ( $errors as $error ) { |
| 1490 | if ( isset( $error['code'] ) ) { |
| 1491 | $errorCodes[$error['code']] = true; |
| 1492 | } |
| 1493 | } |
| 1494 | } |
| 1495 | |
| 1496 | // Add errors from the exception |
| 1497 | $modulePath = $e instanceof ApiUsageException ? $e->getModulePath() : null; |
| 1498 | foreach ( $this->errorMessagesFromException( $e, 'error' ) as $msg ) { |
| 1499 | if ( ApiErrorFormatter::isValidApiCode( $msg->getApiCode() ) ) { |
| 1500 | $errorCodes[$msg->getApiCode()] = true; |
| 1501 | } else { |
| 1502 | LoggerFactory::getInstance( 'api-warning' )->error( 'Invalid API error code "{code}"', [ |
| 1503 | 'code' => $msg->getApiCode(), |
| 1504 | 'exception' => $e, |
| 1505 | ] ); |
| 1506 | $errorCodes['<invalid-code>'] = true; |
| 1507 | } |
| 1508 | $formatter->addError( $modulePath, $msg ); |
| 1509 | } |
| 1510 | foreach ( $this->errorMessagesFromException( $e, 'warning' ) as $msg ) { |
| 1511 | $formatter->addWarning( $modulePath, $msg ); |
| 1512 | } |
| 1513 | |
| 1514 | // Add additional data. Path depends on whether we're in BC mode or not. |
| 1515 | // Data depends on the type of exception. |
| 1516 | if ( $formatter instanceof ApiErrorFormatter_BackCompat ) { |
| 1517 | $path = [ 'error' ]; |
| 1518 | } else { |
| 1519 | $path = null; |
| 1520 | } |
| 1521 | if ( $e instanceof ApiUsageException ) { |
| 1522 | $link = (string)MediaWikiServices::getInstance()->getUrlUtils()->expand( wfScript( 'api' ) ); |
| 1523 | $result->addContentValue( |
| 1524 | $path, |
| 1525 | 'docref', |
| 1526 | trim( |
| 1527 | $this->msg( 'api-usage-docref', $link )->inLanguage( $formatter->getLanguage() )->text() |
| 1528 | . ' ' |
| 1529 | . $this->msg( 'api-usage-mailinglist-ref' )->inLanguage( $formatter->getLanguage() )->text() |
| 1530 | ) |
| 1531 | ); |
| 1532 | } elseif ( $config->get( MainConfigNames::ShowExceptionDetails ) ) { |
| 1533 | $result->addContentValue( |
| 1534 | $path, |
| 1535 | 'trace', |
| 1536 | $this->msg( 'api-exception-trace', |
| 1537 | get_class( $e ), |
| 1538 | $e->getFile(), |
| 1539 | $e->getLine(), |
| 1540 | MWExceptionHandler::getRedactedTraceAsString( $e ) |
| 1541 | )->inLanguage( $formatter->getLanguage() )->text() |
| 1542 | ); |
| 1543 | } |
| 1544 | |
| 1545 | // Add the id and such |
| 1546 | $this->addRequestedFields( [ 'servedby' ] ); |
| 1547 | |
| 1548 | return array_keys( $errorCodes ); |
| 1549 | } |
| 1550 | |
| 1551 | /** |
| 1552 | * Add requested fields to the result |
| 1553 | * @param string[] $force Which fields to force even if not requested. Accepted values are: |
| 1554 | * - servedby |
| 1555 | */ |
| 1556 | protected function addRequestedFields( $force = [] ) { |
| 1557 | $result = $this->getResult(); |
| 1558 | |
| 1559 | $requestid = $this->getParameter( 'requestid' ); |
| 1560 | if ( $requestid !== null ) { |
| 1561 | $result->addValue( null, 'requestid', $requestid, ApiResult::NO_SIZE_CHECK ); |
| 1562 | } |
| 1563 | |
| 1564 | if ( $this->getConfig()->get( MainConfigNames::ShowHostnames ) && ( |
| 1565 | in_array( 'servedby', $force, true ) || $this->getParameter( 'servedby' ) |
| 1566 | ) ) { |
| 1567 | $result->addValue( null, 'servedby', wfHostname(), ApiResult::NO_SIZE_CHECK ); |
| 1568 | } |
| 1569 | |
| 1570 | if ( $this->getParameter( 'curtimestamp' ) ) { |
| 1571 | $result->addValue( null, 'curtimestamp', wfTimestamp( TS::ISO_8601 ), ApiResult::NO_SIZE_CHECK ); |
| 1572 | } |
| 1573 | |
| 1574 | if ( $this->getParameter( 'responselanginfo' ) ) { |
| 1575 | $result->addValue( |
| 1576 | null, |
| 1577 | 'uselang', |
| 1578 | $this->getLanguage()->getCode(), |
| 1579 | ApiResult::NO_SIZE_CHECK |
| 1580 | ); |
| 1581 | $result->addValue( |
| 1582 | null, |
| 1583 | 'errorlang', |
| 1584 | $this->getErrorFormatter()->getLanguage()->getCode(), |
| 1585 | ApiResult::NO_SIZE_CHECK |
| 1586 | ); |
| 1587 | } |
| 1588 | } |
| 1589 | |
| 1590 | /** |
| 1591 | * Set up for the execution. |
| 1592 | * @return array |
| 1593 | */ |
| 1594 | protected function setupExecuteAction() { |
| 1595 | $this->addRequestedFields(); |
| 1596 | |
| 1597 | $params = $this->extractRequestParams(); |
| 1598 | $this->mAction = $params['action']; |
| 1599 | |
| 1600 | return $params; |
| 1601 | } |
| 1602 | |
| 1603 | /** |
| 1604 | * Set up the module for response |
| 1605 | * @return ApiBase The module that will handle this action |
| 1606 | * @throws ApiUsageException |
| 1607 | */ |
| 1608 | protected function setupModule() { |
| 1609 | // Instantiate the module requested by the user |
| 1610 | $module = $this->mModuleMgr->getModule( $this->mAction, 'action' ); |
| 1611 | if ( $module === null ) { |
| 1612 | // Probably can't happen |
| 1613 | // @codeCoverageIgnoreStart |
| 1614 | $this->dieWithError( |
| 1615 | [ 'apierror-unknownaction', wfEscapeWikiText( $this->mAction ) ], |
| 1616 | 'unknown_action' |
| 1617 | ); |
| 1618 | // @codeCoverageIgnoreEnd |
| 1619 | } |
| 1620 | $moduleParams = $module->extractRequestParams(); |
| 1621 | |
| 1622 | // Check token, if necessary |
| 1623 | if ( $module->needsToken() === true ) { |
| 1624 | throw new LogicException( |
| 1625 | "Module '{$module->getModuleName()}' must be updated for the new token handling. " . |
| 1626 | 'See documentation for ApiBase::needsToken for details.' |
| 1627 | ); |
| 1628 | } |
| 1629 | if ( $module->needsToken() ) { |
| 1630 | if ( !$module->mustBePosted() ) { |
| 1631 | throw new LogicException( |
| 1632 | "Module '{$module->getModuleName()}' must require POST to use tokens." |
| 1633 | ); |
| 1634 | } |
| 1635 | |
| 1636 | if ( !isset( $moduleParams['token'] ) ) { |
| 1637 | // Probably can't happen |
| 1638 | // @codeCoverageIgnoreStart |
| 1639 | $module->dieWithError( [ 'apierror-missingparam', 'token' ] ); |
| 1640 | // @codeCoverageIgnoreEnd |
| 1641 | } |
| 1642 | |
| 1643 | $module->requirePostedParameters( [ 'token' ] ); |
| 1644 | |
| 1645 | if ( !$module->validateToken( $moduleParams['token'], $moduleParams ) ) { |
| 1646 | $module->dieWithError( 'apierror-badtoken' ); |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | return $module; |
| 1651 | } |
| 1652 | |
| 1653 | /** |
| 1654 | * @return array |
| 1655 | */ |
| 1656 | private function getMaxLag() { |
| 1657 | $services = MediaWikiServices::getInstance(); |
| 1658 | $dbLag = $services->getDBLoadBalancer()->getMaxLag(); |
| 1659 | $lagInfo = [ |
| 1660 | 'host' => $dbLag[0], |
| 1661 | 'lag' => $dbLag[1], |
| 1662 | 'type' => 'db' |
| 1663 | ]; |
| 1664 | |
| 1665 | $jobQueueLagFactor = |
| 1666 | $this->getConfig()->get( MainConfigNames::JobQueueIncludeInMaxLagFactor ); |
| 1667 | if ( $jobQueueLagFactor ) { |
| 1668 | // Turn total number of jobs into seconds by using the configured value |
| 1669 | $totalJobs = array_sum( $services->getJobQueueGroup()->getQueueSizes() ); |
| 1670 | $jobQueueLag = $totalJobs / (float)$jobQueueLagFactor; |
| 1671 | if ( $jobQueueLag > $lagInfo['lag'] ) { |
| 1672 | $lagInfo = [ |
| 1673 | 'host' => wfHostname(), // XXX: Is there a better value that could be used? |
| 1674 | 'lag' => $jobQueueLag, |
| 1675 | 'type' => 'jobqueue', |
| 1676 | 'jobs' => $totalJobs, |
| 1677 | ]; |
| 1678 | } |
| 1679 | } |
| 1680 | |
| 1681 | $this->getHookRunner()->onApiMaxLagInfo( $lagInfo ); |
| 1682 | |
| 1683 | return $lagInfo; |
| 1684 | } |
| 1685 | |
| 1686 | /** |
| 1687 | * Check the max lag if necessary |
| 1688 | * @param ApiBase $module Api module being used |
| 1689 | * @param array $params Array an array containing the request parameters. |
| 1690 | * @return bool True on success, false should exit immediately |
| 1691 | */ |
| 1692 | protected function checkMaxLag( $module, $params ) { |
| 1693 | if ( $module->shouldCheckMaxlag() && isset( $params['maxlag'] ) ) { |
| 1694 | $maxLag = $params['maxlag']; |
| 1695 | $lagInfo = $this->getMaxLag(); |
| 1696 | if ( $lagInfo['lag'] > $maxLag ) { |
| 1697 | $response = $this->getRequest()->response(); |
| 1698 | |
| 1699 | $response->header( 'Retry-After: ' . max( (int)$maxLag, 5 ) ); |
| 1700 | $response->header( 'X-Database-Lag: ' . (int)$lagInfo['lag'] ); |
| 1701 | |
| 1702 | if ( $this->getConfig()->get( MainConfigNames::ShowHostnames ) ) { |
| 1703 | $this->dieWithError( |
| 1704 | [ 'apierror-maxlag', $lagInfo['lag'], $lagInfo['host'] ], |
| 1705 | 'maxlag', |
| 1706 | $lagInfo |
| 1707 | ); |
| 1708 | } |
| 1709 | |
| 1710 | $this->dieWithError( [ 'apierror-maxlag-generic', $lagInfo['lag'] ], 'maxlag', $lagInfo ); |
| 1711 | } |
| 1712 | } |
| 1713 | |
| 1714 | return true; |
| 1715 | } |
| 1716 | |
| 1717 | /** |
| 1718 | * Check selected RFC 7232 precondition headers |
| 1719 | * |
| 1720 | * RFC 7232 envisions a particular model where you send your request to "a |
| 1721 | * resource", and for write requests that you can read "the resource" by |
| 1722 | * changing the method to GET. When the API receives a GET request, it |
| 1723 | * works out even though "the resource" from RFC 7232's perspective might |
| 1724 | * be many resources from MediaWiki's perspective. But it totally fails for |
| 1725 | * a POST, since what HTTP sees as "the resource" is probably just |
| 1726 | * "/api.php" with all the interesting bits in the body. |
| 1727 | * |
| 1728 | * Therefore, we only support RFC 7232 precondition headers for GET (and |
| 1729 | * HEAD). That means we don't need to bother with If-Match and |
| 1730 | * If-Unmodified-Since since they only apply to modification requests. |
| 1731 | * |
| 1732 | * And since we don't support Range, If-Range is ignored too. |
| 1733 | * |
| 1734 | * @since 1.26 |
| 1735 | * @param ApiBase $module Api module being used |
| 1736 | * @return bool True on success, false should exit immediately |
| 1737 | */ |
| 1738 | protected function checkConditionalRequestHeaders( $module ) { |
| 1739 | if ( $this->mInternalMode ) { |
| 1740 | // No headers to check in internal mode |
| 1741 | return true; |
| 1742 | } |
| 1743 | |
| 1744 | if ( $this->getRequest()->getMethod() !== 'GET' && $this->getRequest()->getMethod() !== 'HEAD' ) { |
| 1745 | // Don't check POSTs |
| 1746 | return true; |
| 1747 | } |
| 1748 | |
| 1749 | $return304 = false; |
| 1750 | |
| 1751 | $ifNoneMatch = array_diff( |
| 1752 | $this->getRequest()->getHeader( 'If-None-Match', WebRequest::GETHEADER_LIST ) ?: [], |
| 1753 | [ '' ] |
| 1754 | ); |
| 1755 | if ( $ifNoneMatch ) { |
| 1756 | // @phan-suppress-next-line PhanImpossibleTypeComparison |
| 1757 | if ( $ifNoneMatch === [ '*' ] ) { |
| 1758 | // API responses always "exist" |
| 1759 | $etag = '*'; |
| 1760 | } else { |
| 1761 | $etag = $module->getConditionalRequestData( 'etag' ); |
| 1762 | } |
| 1763 | } |
| 1764 | // @phan-suppress-next-line PhanPossiblyUndeclaredVariable $etag is declared when $ifNoneMatch is true |
| 1765 | if ( $ifNoneMatch && $etag !== null ) { |
| 1766 | $test = str_starts_with( $etag, 'W/' ) ? substr( $etag, 2 ) : $etag; |
| 1767 | $match = array_map( static function ( $s ) { |
| 1768 | return str_starts_with( $s, 'W/' ) ? substr( $s, 2 ) : $s; |
| 1769 | }, $ifNoneMatch ); |
| 1770 | $return304 = in_array( $test, $match, true ); |
| 1771 | } else { |
| 1772 | $value = trim( $this->getRequest()->getHeader( 'If-Modified-Since' ) ); |
| 1773 | |
| 1774 | // Some old browsers sends sizes after the date, like this: |
| 1775 | // Wed, 20 Aug 2003 06:51:19 GMT; length=5202 |
| 1776 | // Ignore that. |
| 1777 | $i = strpos( $value, ';' ); |
| 1778 | if ( $i !== false ) { |
| 1779 | $value = trim( substr( $value, 0, $i ) ); |
| 1780 | } |
| 1781 | |
| 1782 | if ( $value !== '' ) { |
| 1783 | try { |
| 1784 | $ts = new ConvertibleTimestamp( $value ); |
| 1785 | if ( |
| 1786 | // RFC 7231 IMF-fixdate |
| 1787 | $ts->getTimestamp( TS::RFC2822 ) === $value || |
| 1788 | // RFC 850 |
| 1789 | $ts->format( 'l, d-M-y H:i:s' ) . ' GMT' === $value || |
| 1790 | // asctime (with and without space-padded day) |
| 1791 | $ts->format( 'D M j H:i:s Y' ) === $value || |
| 1792 | $ts->format( 'D M j H:i:s Y' ) === $value |
| 1793 | ) { |
| 1794 | $config = $this->getConfig(); |
| 1795 | $lastMod = $module->getConditionalRequestData( 'last-modified' ); |
| 1796 | if ( $lastMod !== null ) { |
| 1797 | // Mix in some MediaWiki modification times |
| 1798 | $modifiedTimes = [ |
| 1799 | 'page' => $lastMod, |
| 1800 | 'user' => $this->getUser()->getTouched(), |
| 1801 | 'epoch' => $config->get( MainConfigNames::CacheEpoch ), |
| 1802 | ]; |
| 1803 | |
| 1804 | if ( $config->get( MainConfigNames::UseCdn ) ) { |
| 1805 | // T46570: the core page itself may not change, but resources might |
| 1806 | $modifiedTimes['sepoch'] = wfTimestamp( |
| 1807 | TS::MW, time() - $config->get( MainConfigNames::CdnMaxAge ) |
| 1808 | ); |
| 1809 | } |
| 1810 | $this->getHookRunner()->onOutputPageCheckLastModified( $modifiedTimes, $this->getOutput() ); |
| 1811 | $lastMod = max( $modifiedTimes ); |
| 1812 | $return304 = wfTimestamp( TS::MW, $lastMod ) <= $ts->getTimestamp( TS::MW ); |
| 1813 | } |
| 1814 | } |
| 1815 | } catch ( TimestampException ) { |
| 1816 | // Invalid timestamp, ignore it |
| 1817 | } |
| 1818 | } |
| 1819 | } |
| 1820 | |
| 1821 | if ( $return304 ) { |
| 1822 | $this->getRequest()->response()->statusHeader( 304 ); |
| 1823 | |
| 1824 | // Avoid outputting the compressed representation of a zero-length body |
| 1825 | // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged |
| 1826 | @ini_set( 'zlib.output_compression', 0 ); |
| 1827 | wfResetOutputBuffers( false ); |
| 1828 | |
| 1829 | return false; |
| 1830 | } |
| 1831 | |
| 1832 | return true; |
| 1833 | } |
| 1834 | |
| 1835 | /** |
| 1836 | * Check for sufficient permissions to execute |
| 1837 | * @param ApiBase $module An Api module |
| 1838 | */ |
| 1839 | protected function checkExecutePermissions( $module ) { |
| 1840 | $user = $this->getUser(); |
| 1841 | if ( $module->isReadMode() && !$this->getPermissionManager()->isEveryoneAllowed( 'read' ) && |
| 1842 | !$this->getAuthority()->isAllowed( 'read' ) |
| 1843 | ) { |
| 1844 | $this->dieWithError( 'apierror-readapidenied' ); |
| 1845 | } |
| 1846 | |
| 1847 | if ( $module->isWriteMode() ) { |
| 1848 | if ( !$this->mEnableWrite ) { |
| 1849 | $this->dieWithError( 'apierror-noapiwrite' ); |
| 1850 | } elseif ( $this->getRequest()->getHeader( 'Promise-Non-Write-API-Action' ) ) { |
| 1851 | $this->dieWithError( 'apierror-promised-nonwrite-api' ); |
| 1852 | } |
| 1853 | |
| 1854 | $this->checkReadOnly( $module ); |
| 1855 | } |
| 1856 | |
| 1857 | // Allow extensions to stop execution for arbitrary reasons. |
| 1858 | // TODO: change hook to accept Authority |
| 1859 | $message = 'hookaborted'; |
| 1860 | if ( !$this->getHookRunner()->onApiCheckCanExecute( $module, $user, $message ) ) { |
| 1861 | $this->dieWithError( $message ); |
| 1862 | } |
| 1863 | } |
| 1864 | |
| 1865 | /** |
| 1866 | * Check if the DB is read-only for this user |
| 1867 | * @param ApiBase $module An Api module |
| 1868 | */ |
| 1869 | protected function checkReadOnly( $module ) { |
| 1870 | if ( MediaWikiServices::getInstance()->getReadOnlyMode()->isReadOnly() ) { |
| 1871 | $this->dieReadOnly(); |
| 1872 | } |
| 1873 | |
| 1874 | if ( $module->isWriteMode() |
| 1875 | && $this->getUser()->isBot() |
| 1876 | && MediaWikiServices::getInstance()->getDBLoadBalancer()->hasReplicaServers() |
| 1877 | ) { |
| 1878 | $this->checkBotReadOnly(); |
| 1879 | } |
| 1880 | } |
| 1881 | |
| 1882 | /** |
| 1883 | * Check whether we are readonly for bots |
| 1884 | */ |
| 1885 | private function checkBotReadOnly() { |
| 1886 | // Figure out how many servers have passed the lag threshold |
| 1887 | $numLagged = 0; |
| 1888 | $lagLimit = $this->getConfig()->get( MainConfigNames::APIMaxLagThreshold ); |
| 1889 | $laggedServers = []; |
| 1890 | $loadBalancer = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 1891 | foreach ( $loadBalancer->getLagTimes() as $serverIndex => $lag ) { |
| 1892 | if ( $lag > $lagLimit ) { |
| 1893 | ++$numLagged; |
| 1894 | $laggedServers[] = $loadBalancer->getServerName( $serverIndex ) . " ({$lag}s)"; |
| 1895 | } |
| 1896 | } |
| 1897 | |
| 1898 | // If a majority of replica DBs are too lagged then disallow writes |
| 1899 | $replicaCount = $loadBalancer->getServerCount() - 1; |
| 1900 | if ( $numLagged >= ceil( $replicaCount / 2 ) ) { |
| 1901 | $laggedServers = implode( ', ', $laggedServers ); |
| 1902 | wfDebugLog( |
| 1903 | 'api-readonly', // Deprecate this channel in favor of api-warning? |
| 1904 | "Api request failed as read only because the following DBs are lagged: $laggedServers" |
| 1905 | ); |
| 1906 | LoggerFactory::getInstance( 'api-warning' )->warning( |
| 1907 | "Api request failed as read only because the following DBs are lagged: {laggeddbs}", [ |
| 1908 | 'laggeddbs' => $laggedServers, |
| 1909 | ] |
| 1910 | ); |
| 1911 | |
| 1912 | $this->dieWithError( |
| 1913 | 'readonly_lag', |
| 1914 | 'readonly', |
| 1915 | [ 'readonlyreason' => "Waiting for $numLagged lagged database(s)" ] |
| 1916 | ); |
| 1917 | } |
| 1918 | } |
| 1919 | |
| 1920 | /** |
| 1921 | * Check asserts of the user's rights |
| 1922 | * @param array $params |
| 1923 | */ |
| 1924 | protected function checkAsserts( $params ) { |
| 1925 | if ( isset( $params['assert'] ) ) { |
| 1926 | $user = $this->getUser(); |
| 1927 | switch ( $params['assert'] ) { |
| 1928 | case 'anon': |
| 1929 | if ( $user->isRegistered() ) { |
| 1930 | $this->dieWithError( 'apierror-assertanonfailed' ); |
| 1931 | } |
| 1932 | break; |
| 1933 | case 'user': |
| 1934 | if ( !$user->isRegistered() ) { |
| 1935 | $this->dieWithError( 'apierror-assertuserfailed' ); |
| 1936 | } |
| 1937 | break; |
| 1938 | case 'bot': |
| 1939 | if ( !$this->getAuthority()->isAllowed( 'bot' ) ) { |
| 1940 | $this->dieWithError( 'apierror-assertbotfailed' ); |
| 1941 | } |
| 1942 | break; |
| 1943 | } |
| 1944 | } |
| 1945 | if ( isset( $params['assertuser'] ) ) { |
| 1946 | // TODO inject stuff, see T265644 |
| 1947 | $assertUser = MediaWikiServices::getInstance()->getUserFactory() |
| 1948 | ->newFromName( $params['assertuser'], UserRigorOptions::RIGOR_NONE ); |
| 1949 | if ( !$assertUser || !$this->getUser()->equals( $assertUser ) ) { |
| 1950 | $this->dieWithError( |
| 1951 | [ 'apierror-assertnameduserfailed', wfEscapeWikiText( $params['assertuser'] ) ] |
| 1952 | ); |
| 1953 | } |
| 1954 | } |
| 1955 | } |
| 1956 | |
| 1957 | /** |
| 1958 | * Check POST for external response and setup result printer |
| 1959 | * @param ApiBase $module An Api module |
| 1960 | * @param array $params An array with the request parameters |
| 1961 | */ |
| 1962 | protected function setupExternalResponse( $module, $params ) { |
| 1963 | $validMethods = [ 'GET', 'HEAD', 'POST', 'OPTIONS' ]; |
| 1964 | $request = $this->getRequest(); |
| 1965 | |
| 1966 | if ( !in_array( $request->getMethod(), $validMethods ) ) { |
| 1967 | $this->dieWithError( 'apierror-invalidmethod', null, null, 405 ); |
| 1968 | } |
| 1969 | |
| 1970 | if ( !$request->wasPosted() && $module->mustBePosted() ) { |
| 1971 | // Module requires POST. GET request might still be allowed |
| 1972 | // if $wgDebugApi is true, otherwise fail. |
| 1973 | $this->dieWithErrorOrDebug( [ 'apierror-mustbeposted', $this->mAction ] ); |
| 1974 | } |
| 1975 | |
| 1976 | if ( $request->wasPosted() ) { |
| 1977 | if ( !$request->getHeader( 'Content-Type' ) ) { |
| 1978 | $this->addDeprecation( |
| 1979 | 'apiwarn-deprecation-post-without-content-type', 'post-without-content-type' |
| 1980 | ); |
| 1981 | } |
| 1982 | $contentLength = $request->getHeader( 'Content-Length' ); |
| 1983 | $maxPostSize = wfShorthandToInteger( ini_get( 'post_max_size' ), 0 ); |
| 1984 | if ( $maxPostSize && $contentLength > $maxPostSize ) { |
| 1985 | $this->dieWithError( |
| 1986 | [ 'apierror-http-contenttoolarge', Message::sizeParam( $maxPostSize ) ], |
| 1987 | null, null, 413 |
| 1988 | ); |
| 1989 | } |
| 1990 | } |
| 1991 | |
| 1992 | // See if custom printer is used |
| 1993 | $this->mPrinter = $module->getCustomPrinter() ?? |
| 1994 | // Create an appropriate printer if not set |
| 1995 | $this->createPrinterByName( $params['format'] ); |
| 1996 | |
| 1997 | if ( $request->getProtocol() === 'http' && |
| 1998 | ( |
| 1999 | $this->getConfig()->get( MainConfigNames::ForceHTTPS ) || |
| 2000 | $request->getSession()->shouldForceHTTPS() || |
| 2001 | $this->getUser()->requiresHTTPS() |
| 2002 | ) |
| 2003 | ) { |
| 2004 | $this->addDeprecation( 'apiwarn-deprecation-httpsexpected', 'https-expected' ); |
| 2005 | } |
| 2006 | } |
| 2007 | |
| 2008 | /** |
| 2009 | * Execute the actual module, without any error handling |
| 2010 | */ |
| 2011 | protected function executeAction() { |
| 2012 | $params = $this->setupExecuteAction(); |
| 2013 | |
| 2014 | // Check asserts early so e.g. errors in parsing a module's parameters due to being |
| 2015 | // logged out don't override the client's intended "am I logged in?" check. |
| 2016 | $this->checkAsserts( $params ); |
| 2017 | |
| 2018 | $module = $this->setupModule(); |
| 2019 | $this->mModule = $module; |
| 2020 | |
| 2021 | if ( !$this->mInternalMode ) { |
| 2022 | ProfilingContext::singleton()->init( MW_ENTRY_POINT, $module->getModuleName() ); |
| 2023 | $this->setRequestExpectations( $module ); |
| 2024 | } |
| 2025 | |
| 2026 | $this->checkExecutePermissions( $module ); |
| 2027 | |
| 2028 | if ( !$this->checkMaxLag( $module, $params ) ) { |
| 2029 | return; |
| 2030 | } |
| 2031 | |
| 2032 | if ( !$this->checkConditionalRequestHeaders( $module ) ) { |
| 2033 | return; |
| 2034 | } |
| 2035 | |
| 2036 | if ( !$this->mInternalMode ) { |
| 2037 | $this->setupExternalResponse( $module, $params ); |
| 2038 | } |
| 2039 | |
| 2040 | $scope = LoggerFactory::getContext()->addScoped( [ |
| 2041 | 'context.api_module_name' => $module->getModuleName(), |
| 2042 | 'context.api_client_useragent' => $this->getUserAgent(), |
| 2043 | ] ); |
| 2044 | $module->execute(); |
| 2045 | ScopedCallback::consume( $scope ); |
| 2046 | $this->getHookRunner()->onAPIAfterExecute( $module ); |
| 2047 | |
| 2048 | $this->reportUnusedParams(); |
| 2049 | |
| 2050 | if ( !$this->mInternalMode ) { |
| 2051 | MWDebug::appendDebugInfoToApiResult( $this->getContext(), $this->getResult() ); |
| 2052 | |
| 2053 | $this->printResult(); |
| 2054 | } |
| 2055 | } |
| 2056 | |
| 2057 | /** |
| 2058 | * Set database connection, query, and write expectations given this module request |
| 2059 | */ |
| 2060 | protected function setRequestExpectations( ApiBase $module ) { |
| 2061 | $request = $this->getRequest(); |
| 2062 | |
| 2063 | $trxLimits = $this->getConfig()->get( MainConfigNames::TrxProfilerLimits ); |
| 2064 | $trxProfiler = Profiler::instance()->getTransactionProfiler(); |
| 2065 | $trxProfiler->setLogger( LoggerFactory::getInstance( 'rdbms' ) ); |
| 2066 | $trxProfiler->setStatsFactory( MediaWikiServices::getInstance()->getStatsFactory() ); |
| 2067 | $trxProfiler->setRequestMethod( $request->getMethod() ); |
| 2068 | if ( $request->hasSafeMethod() ) { |
| 2069 | $trxProfiler->setExpectations( $trxLimits['GET'], __METHOD__ ); |
| 2070 | } elseif ( $request->wasPosted() && !$module->isWriteMode() ) { |
| 2071 | $trxProfiler->setExpectations( $trxLimits['POST-nonwrite'], __METHOD__ ); |
| 2072 | } else { |
| 2073 | $trxProfiler->setExpectations( $trxLimits['POST'], __METHOD__ ); |
| 2074 | } |
| 2075 | } |
| 2076 | |
| 2077 | /** |
| 2078 | * Log the preceding request |
| 2079 | * @param float $time Time in seconds |
| 2080 | * @param Throwable|null $e Throwable caught while processing the request |
| 2081 | */ |
| 2082 | protected function logRequest( $time, ?Throwable $e = null ) { |
| 2083 | $request = $this->getRequest(); |
| 2084 | |
| 2085 | $user = $this->getUser(); |
| 2086 | $performer = [ |
| 2087 | 'user_text' => $user->getName(), |
| 2088 | ]; |
| 2089 | if ( $user->isRegistered() ) { |
| 2090 | $performer['user_id'] = $user->getId(); |
| 2091 | } |
| 2092 | $logCtx = [ |
| 2093 | // https://gerrit.wikimedia.org/g/mediawiki/event-schemas/+/master/jsonschema/mediawiki/api/request |
| 2094 | '$schema' => '/mediawiki/api/request/1.0.0', |
| 2095 | 'meta' => [ |
| 2096 | 'request_id' => WebRequest::getRequestId(), |
| 2097 | 'id' => MediaWikiServices::getInstance() |
| 2098 | ->getGlobalIdGenerator()->newUUIDv4(), |
| 2099 | 'domain' => $this->getConfig()->get( MainConfigNames::ServerName ), |
| 2100 | // If using the EventBus extension (as intended) with this log channel, |
| 2101 | // this stream name will map to a Kafka topic. |
| 2102 | 'stream' => 'mediawiki.api-request' |
| 2103 | ], |
| 2104 | 'http' => [ |
| 2105 | 'method' => $request->getMethod(), |
| 2106 | 'client_ip' => $request->getIP() |
| 2107 | ], |
| 2108 | 'performer' => $performer, |
| 2109 | 'database' => WikiMap::getCurrentWikiDbDomain()->getId(), |
| 2110 | 'backend_time_ms' => (int)round( $time * 1000 ), |
| 2111 | ]; |
| 2112 | |
| 2113 | // If set, these headers will be logged in http.request_headers. |
| 2114 | $httpRequestHeadersToLog = [ 'accept-language', 'referer', 'user-agent', 'content-type' ]; |
| 2115 | foreach ( $httpRequestHeadersToLog as $header ) { |
| 2116 | if ( $request->getHeader( $header ) ) { |
| 2117 | // Set the header in http.request_headers |
| 2118 | $logCtx['http']['request_headers'][$header] = $request->getHeader( $header ); |
| 2119 | } |
| 2120 | } |
| 2121 | |
| 2122 | if ( $e ) { |
| 2123 | $logCtx['api_error_codes'] = []; |
| 2124 | foreach ( $this->errorMessagesFromException( $e ) as $msg ) { |
| 2125 | $logCtx['api_error_codes'][] = $msg->getApiCode(); |
| 2126 | } |
| 2127 | } |
| 2128 | |
| 2129 | // Construct space separated message for 'api' log channel |
| 2130 | $msg = "API {$request->getMethod()} " . |
| 2131 | wfUrlencode( str_replace( ' ', '_', $this->getUser()->getName() ) ) . |
| 2132 | " {$logCtx['http']['client_ip']} " . |
| 2133 | "T={$logCtx['backend_time_ms']}ms"; |
| 2134 | |
| 2135 | $sensitive = array_fill_keys( $this->getSensitiveParams(), true ); |
| 2136 | foreach ( $this->getParamsUsed() as $name ) { |
| 2137 | $value = $request->getVal( $name ); |
| 2138 | if ( $value === null ) { |
| 2139 | continue; |
| 2140 | } |
| 2141 | |
| 2142 | if ( isset( $sensitive[$name] ) ) { |
| 2143 | $value = '[redacted]'; |
| 2144 | $encValue = '[redacted]'; |
| 2145 | } elseif ( strlen( $value ) > 256 ) { |
| 2146 | $value = substr( $value, 0, 256 ); |
| 2147 | $encValue = $this->encodeRequestLogValue( $value ) . '[...]'; |
| 2148 | } else { |
| 2149 | $encValue = $this->encodeRequestLogValue( $value ); |
| 2150 | } |
| 2151 | |
| 2152 | $logCtx['params'][$name] = $value; |
| 2153 | $msg .= " {$name}={$encValue}"; |
| 2154 | } |
| 2155 | |
| 2156 | // Log an unstructured message to the api channel. |
| 2157 | wfDebugLog( 'api', $msg, 'private' ); |
| 2158 | |
| 2159 | // The api-request channel a structured data log channel. |
| 2160 | wfDebugLog( 'api-request', '', 'private', $logCtx ); |
| 2161 | } |
| 2162 | |
| 2163 | /** |
| 2164 | * Encode a value in a format suitable for a space-separated log line. |
| 2165 | * @param string $s |
| 2166 | * @return string |
| 2167 | */ |
| 2168 | protected function encodeRequestLogValue( $s ) { |
| 2169 | static $table = []; |
| 2170 | if ( !$table ) { |
| 2171 | $chars = ';@$!*(),/:'; |
| 2172 | $numChars = strlen( $chars ); |
| 2173 | for ( $i = 0; $i < $numChars; $i++ ) { |
| 2174 | $table[rawurlencode( $chars[$i] )] = $chars[$i]; |
| 2175 | } |
| 2176 | } |
| 2177 | |
| 2178 | return strtr( rawurlencode( $s ), $table ); |
| 2179 | } |
| 2180 | |
| 2181 | /** |
| 2182 | * Get the request parameters used in the course of the preceding execute() request |
| 2183 | * @return array |
| 2184 | */ |
| 2185 | protected function getParamsUsed() { |
| 2186 | return array_keys( $this->mParamsUsed ); |
| 2187 | } |
| 2188 | |
| 2189 | /** |
| 2190 | * Mark parameters as used |
| 2191 | * @param string|string[] $params |
| 2192 | */ |
| 2193 | public function markParamsUsed( $params ) { |
| 2194 | $this->mParamsUsed += array_fill_keys( (array)$params, true ); |
| 2195 | } |
| 2196 | |
| 2197 | /** |
| 2198 | * Get the request parameters that should be considered sensitive |
| 2199 | * @since 1.29 |
| 2200 | * @return array |
| 2201 | */ |
| 2202 | protected function getSensitiveParams() { |
| 2203 | return array_keys( $this->mParamsSensitive ); |
| 2204 | } |
| 2205 | |
| 2206 | /** |
| 2207 | * Mark parameters as sensitive |
| 2208 | * |
| 2209 | * This is called automatically for you when declaring a parameter |
| 2210 | * with ApiBase::PARAM_SENSITIVE. |
| 2211 | * |
| 2212 | * @since 1.29 |
| 2213 | * @param string|string[] $params |
| 2214 | */ |
| 2215 | public function markParamsSensitive( $params ) { |
| 2216 | $this->mParamsSensitive += array_fill_keys( (array)$params, true ); |
| 2217 | } |
| 2218 | |
| 2219 | /** |
| 2220 | * Get a request value, and register the fact that it was used, for logging. |
| 2221 | * @param string $name |
| 2222 | * @param string|null $default |
| 2223 | * @return string|null |
| 2224 | */ |
| 2225 | public function getVal( $name, $default = null ) { |
| 2226 | $this->mParamsUsed[$name] = true; |
| 2227 | |
| 2228 | $ret = $this->getRequest()->getVal( $name ); |
| 2229 | if ( $ret === null ) { |
| 2230 | if ( $this->getRequest()->getArray( $name ) !== null ) { |
| 2231 | // See T12262 for why we don't just implode( '|', ... ) the |
| 2232 | // array. |
| 2233 | $this->addWarning( [ 'apiwarn-unsupportedarray', $name ] ); |
| 2234 | } |
| 2235 | $ret = $default; |
| 2236 | } |
| 2237 | return $ret; |
| 2238 | } |
| 2239 | |
| 2240 | /** |
| 2241 | * Get a boolean request value, and register the fact that the parameter |
| 2242 | * was used, for logging. |
| 2243 | * @param string $name |
| 2244 | * @return bool |
| 2245 | */ |
| 2246 | public function getCheck( $name ) { |
| 2247 | $this->mParamsUsed[$name] = true; |
| 2248 | return $this->getRequest()->getCheck( $name ); |
| 2249 | } |
| 2250 | |
| 2251 | /** |
| 2252 | * Get a request upload, and register the fact that it was used, for logging. |
| 2253 | * |
| 2254 | * @since 1.21 |
| 2255 | * @param string $name Parameter name |
| 2256 | * @return WebRequestUpload |
| 2257 | */ |
| 2258 | public function getUpload( $name ) { |
| 2259 | $this->mParamsUsed[$name] = true; |
| 2260 | |
| 2261 | return $this->getRequest()->getUpload( $name ); |
| 2262 | } |
| 2263 | |
| 2264 | /** |
| 2265 | * Report unused parameters, so the client gets a hint in case it gave us parameters we don't know, |
| 2266 | * for example in case of spelling mistakes or a missing 'g' prefix for generators. |
| 2267 | */ |
| 2268 | protected function reportUnusedParams() { |
| 2269 | $paramsUsed = $this->getParamsUsed(); |
| 2270 | $allParams = $this->getRequest()->getValueNames(); |
| 2271 | |
| 2272 | if ( !$this->mInternalMode ) { |
| 2273 | // Printer has not yet executed; don't warn that its parameters are unused |
| 2274 | $printerParams = $this->mPrinter->encodeParamName( |
| 2275 | array_keys( $this->mPrinter->getFinalParams() ?: [] ) |
| 2276 | ); |
| 2277 | $unusedParams = array_diff( $allParams, $paramsUsed, $printerParams ); |
| 2278 | } else { |
| 2279 | $unusedParams = array_diff( $allParams, $paramsUsed ); |
| 2280 | } |
| 2281 | |
| 2282 | if ( count( $unusedParams ) ) { |
| 2283 | $this->addWarning( [ |
| 2284 | 'apierror-unrecognizedparams', |
| 2285 | Message::listParam( array_map( wfEscapeWikiText( ... ), $unusedParams ), ListType::COMMA ), |
| 2286 | count( $unusedParams ) |
| 2287 | ] ); |
| 2288 | } |
| 2289 | } |
| 2290 | |
| 2291 | /** |
| 2292 | * Print results using the current printer |
| 2293 | * |
| 2294 | * @param int $httpCode HTTP status code, or 0 to not change |
| 2295 | */ |
| 2296 | protected function printResult( $httpCode = 0 ) { |
| 2297 | if ( $this->getConfig()->get( MainConfigNames::DebugAPI ) !== false ) { |
| 2298 | $this->addWarning( 'apiwarn-wgdebugapi' ); |
| 2299 | } |
| 2300 | |
| 2301 | $printer = $this->mPrinter; |
| 2302 | $printer->initPrinter( false ); |
| 2303 | if ( $httpCode ) { |
| 2304 | $printer->setHttpStatus( $httpCode ); |
| 2305 | } |
| 2306 | $printer->execute(); |
| 2307 | $printer->closePrinter(); |
| 2308 | } |
| 2309 | |
| 2310 | /** |
| 2311 | * @return bool |
| 2312 | */ |
| 2313 | public function isReadMode() { |
| 2314 | return false; |
| 2315 | } |
| 2316 | |
| 2317 | /** |
| 2318 | * See ApiBase for description. |
| 2319 | * |
| 2320 | * @return array |
| 2321 | */ |
| 2322 | public function getAllowedParams() { |
| 2323 | return [ |
| 2324 | 'action' => [ |
| 2325 | ParamValidator::PARAM_DEFAULT => 'help', |
| 2326 | ParamValidator::PARAM_TYPE => 'submodule', |
| 2327 | ], |
| 2328 | 'format' => [ |
| 2329 | ParamValidator::PARAM_DEFAULT => self::API_DEFAULT_FORMAT, |
| 2330 | ParamValidator::PARAM_TYPE => 'submodule', |
| 2331 | ], |
| 2332 | 'maxlag' => [ |
| 2333 | ParamValidator::PARAM_TYPE => 'integer' |
| 2334 | ], |
| 2335 | 'smaxage' => [ |
| 2336 | ParamValidator::PARAM_TYPE => 'integer', |
| 2337 | ParamValidator::PARAM_DEFAULT => 0, |
| 2338 | IntegerDef::PARAM_MIN => 0, |
| 2339 | ], |
| 2340 | 'maxage' => [ |
| 2341 | ParamValidator::PARAM_TYPE => 'integer', |
| 2342 | ParamValidator::PARAM_DEFAULT => 0, |
| 2343 | IntegerDef::PARAM_MIN => 0, |
| 2344 | ], |
| 2345 | 'assert' => [ |
| 2346 | ParamValidator::PARAM_TYPE => [ 'anon', 'user', 'bot' ] |
| 2347 | ], |
| 2348 | 'assertuser' => [ |
| 2349 | ParamValidator::PARAM_TYPE => 'user', |
| 2350 | UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'temp' ], |
| 2351 | ], |
| 2352 | 'requestid' => null, |
| 2353 | 'servedby' => false, |
| 2354 | 'curtimestamp' => false, |
| 2355 | 'responselanginfo' => false, |
| 2356 | 'origin' => null, |
| 2357 | 'crossorigin' => false, |
| 2358 | 'uselang' => [ |
| 2359 | ParamValidator::PARAM_DEFAULT => self::API_DEFAULT_USELANG, |
| 2360 | ], |
| 2361 | 'variant' => null, |
| 2362 | 'errorformat' => [ |
| 2363 | ParamValidator::PARAM_TYPE => [ 'plaintext', 'wikitext', 'html', 'raw', 'none', 'bc' ], |
| 2364 | ParamValidator::PARAM_DEFAULT => 'bc', |
| 2365 | ApiBase::PARAM_HELP_MSG_PER_VALUE => [], |
| 2366 | ], |
| 2367 | 'errorlang' => [ |
| 2368 | ParamValidator::PARAM_DEFAULT => 'uselang', |
| 2369 | ], |
| 2370 | 'errorsuselocal' => [ |
| 2371 | ParamValidator::PARAM_DEFAULT => false, |
| 2372 | ], |
| 2373 | ]; |
| 2374 | } |
| 2375 | |
| 2376 | /** @inheritDoc */ |
| 2377 | protected function getExamplesMessages() { |
| 2378 | return [ |
| 2379 | 'action=help' |
| 2380 | => 'apihelp-help-example-main', |
| 2381 | 'action=help&recursivesubmodules=1&toc' |
| 2382 | => 'apihelp-help-example-recursive', |
| 2383 | ]; |
| 2384 | } |
| 2385 | |
| 2386 | /** |
| 2387 | * @inheritDoc |
| 2388 | * @phan-param array{nolead?:bool,headerlevel?:int,tocnumber?:int[]} $options |
| 2389 | */ |
| 2390 | public function modifyHelp( array &$help, array $options, array &$tocData ) { |
| 2391 | if ( !empty( $options['nolead'] ) ) { |
| 2392 | return; |
| 2393 | } |
| 2394 | |
| 2395 | $helpBefore = []; |
| 2396 | $helpAfter = []; |
| 2397 | $tocDataBefore = []; |
| 2398 | |
| 2399 | // @phan-suppress-next-line PhanTypePossiblyInvalidDimOffset Must set when nolead is not set |
| 2400 | $level = $options['headerlevel']; |
| 2401 | // @phan-suppress-next-line PhanTypePossiblyInvalidDimOffset Must set when nolead is not set |
| 2402 | $tocnumber = &$options['tocnumber']; |
| 2403 | $tocnumberBefore = 0; |
| 2404 | |
| 2405 | $header = $this->msg( 'api-help-general-header' )->parse(); |
| 2406 | $headline = Html::rawElement( |
| 2407 | 'h' . min( 6, $level - 1 ), |
| 2408 | [ 'class' => 'apihelp-header', 'id' => 'main/general' ], |
| 2409 | $header |
| 2410 | ); |
| 2411 | $helpBefore['general'] = $headline; |
| 2412 | $helpBefore['general'] .= $this->msg( 'api-help-general' )->parseAsBlock(); |
| 2413 | if ( !isset( $tocData['main/general'] ) ) { |
| 2414 | $anchor = 'main/general'; |
| 2415 | $tocDataBefore['main/general'] = new SectionMetadata( |
| 2416 | tocLevel: count( $tocnumber ) - 1, |
| 2417 | hLevel: $level - 1, |
| 2418 | line: $header, |
| 2419 | number: '0', |
| 2420 | index: '', |
| 2421 | anchor: $anchor, |
| 2422 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2423 | ); |
| 2424 | // FIXME: I don't love numbering the sections from 0, but counting is hard. |
| 2425 | // Someone should rewrite this code so that the numbers are assigned automatically. |
| 2426 | } |
| 2427 | $header = $this->msg( 'api-help-methods-header' )->parse(); |
| 2428 | $headline = Html::rawElement( |
| 2429 | 'h' . min( 6, $level ), |
| 2430 | [ 'class' => 'apihelp-header', 'id' => 'main/methods' ], |
| 2431 | $header |
| 2432 | ); |
| 2433 | $helpBefore['methods'] = $headline; |
| 2434 | $helpBefore['methods'] .= $this->msg( 'api-help-methods' )->parseAsBlock(); |
| 2435 | if ( !isset( $tocData['main/methods'] ) ) { |
| 2436 | $tocnumberBefore++; |
| 2437 | $anchor = 'main/methods'; |
| 2438 | $tocDataBefore['main/methods'] = new SectionMetadata( |
| 2439 | tocLevel: count( $tocnumber ), |
| 2440 | hLevel: $level, |
| 2441 | line: $header, |
| 2442 | number: '0.' . $tocnumberBefore, |
| 2443 | index: '', |
| 2444 | anchor: $anchor, |
| 2445 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2446 | ); |
| 2447 | } |
| 2448 | |
| 2449 | $header = $this->msg( 'api-help-datatypes-header' )->parse(); |
| 2450 | $headline = Html::rawElement( |
| 2451 | 'h' . min( 6, $level ), |
| 2452 | [ 'class' => 'apihelp-header', 'id' => 'main/datatypes' ], |
| 2453 | $header |
| 2454 | ); |
| 2455 | $helpBefore['datatypes'] = $headline; |
| 2456 | $helpBefore['datatypes'] .= $this->msg( 'api-help-datatypes-top' )->parseAsBlock(); |
| 2457 | $helpBefore['datatypes'] .= '<dl>'; |
| 2458 | foreach ( $this->getParamValidator()->knownTypes() as $type ) { |
| 2459 | $m = $this->msg( "api-help-datatype-$type" ); |
| 2460 | if ( !$m->isDisabled() ) { |
| 2461 | $helpBefore['datatypes'] .= Html::element( 'dt', [ 'id' => "main/datatype/$type" ], $type ); |
| 2462 | $helpBefore['datatypes'] .= Html::rawElement( 'dd', [], $m->parseAsBlock() ); |
| 2463 | } |
| 2464 | } |
| 2465 | $helpBefore['datatypes'] .= '</dl>'; |
| 2466 | if ( !isset( $tocData['main/datatypes'] ) ) { |
| 2467 | $tocnumberBefore++; |
| 2468 | $anchor = 'main/datatypes'; |
| 2469 | $tocDataBefore['main/datatypes'] = new SectionMetadata( |
| 2470 | tocLevel: count( $tocnumber ), |
| 2471 | hLevel: $level, |
| 2472 | line: $header, |
| 2473 | number: '0.' . $tocnumberBefore, |
| 2474 | index: '', |
| 2475 | anchor: $anchor, |
| 2476 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2477 | ); |
| 2478 | } |
| 2479 | |
| 2480 | $header = $this->msg( 'api-help-limits-header' )->parse(); |
| 2481 | $headline = Html::rawElement( |
| 2482 | 'h' . min( 6, $level ), |
| 2483 | [ 'class' => 'apihelp-header', 'id' => 'main/limits' ], |
| 2484 | $header |
| 2485 | ); |
| 2486 | $helpBefore['limits'] = $headline; |
| 2487 | $helpBefore['limits'] .= $this->msg( 'api-help-limits' ) |
| 2488 | ->numParams( ApiBase::LIMIT_SML1, ApiBase::LIMIT_BIG1, ApiBase::LIMIT_SML1 ) |
| 2489 | ->parseAsBlock(); |
| 2490 | |
| 2491 | // TODO inject stuff, see T265644 |
| 2492 | $groupPermissionsLookup = MediaWikiServices::getInstance()->getGroupPermissionsLookup(); |
| 2493 | |
| 2494 | $groups = $groupPermissionsLookup->getGroupsWithPermission( 'apihighlimits' ); |
| 2495 | if ( $groups ) { |
| 2496 | $groupDescs = array_map( $this->getLanguage()->getGroupName( ... ), $groups ); |
| 2497 | |
| 2498 | $helpBefore['limits'] .= $this->msg( 'api-help-limits-apihighlimits' ) |
| 2499 | ->numParams( ApiBase::LIMIT_SML2, ApiBase::LIMIT_BIG2, ApiBase::LIMIT_SML2 ) |
| 2500 | ->params( Message::listParam( $groupDescs ) )->parseAsBlock(); |
| 2501 | } |
| 2502 | |
| 2503 | if ( !isset( $tocData['main/limits'] ) ) { |
| 2504 | $tocnumberBefore++; |
| 2505 | $anchor = 'main/limits'; |
| 2506 | $tocDataBefore['main/limits'] = new SectionMetadata( |
| 2507 | tocLevel: count( $tocnumber ), |
| 2508 | hLevel: $level, |
| 2509 | line: $header, |
| 2510 | number: '0.' . $tocnumberBefore, |
| 2511 | index: '', |
| 2512 | anchor: $anchor, |
| 2513 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2514 | ); |
| 2515 | } |
| 2516 | |
| 2517 | $header = $this->msg( 'api-help-templatedparams-header' )->parse(); |
| 2518 | $headline = Html::rawElement( |
| 2519 | 'h' . min( 6, $level ), |
| 2520 | [ 'class' => 'apihelp-header', 'id' => 'main/templatedparams' ], |
| 2521 | $header |
| 2522 | ); |
| 2523 | $helpBefore['templatedparams'] = $headline; |
| 2524 | $helpBefore['templatedparams'] .= $this->msg( 'api-help-templatedparams' )->parseAsBlock(); |
| 2525 | if ( !isset( $tocData['main/templatedparams'] ) ) { |
| 2526 | $tocnumberBefore++; |
| 2527 | $anchor = 'main/templatedparams'; |
| 2528 | $tocDataBefore['main/templatedparams'] = new SectionMetadata( |
| 2529 | tocLevel: count( $tocnumber ), |
| 2530 | hLevel: $level, |
| 2531 | line: $header, |
| 2532 | number: '0.' . $tocnumberBefore, |
| 2533 | index: '', |
| 2534 | anchor: $anchor, |
| 2535 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2536 | ); |
| 2537 | } |
| 2538 | |
| 2539 | $header = $this->msg( 'api-credits-header' )->parse(); |
| 2540 | $headline = Html::rawElement( |
| 2541 | 'h' . min( 6, $level - 1 ), |
| 2542 | [ 'class' => 'apihelp-header', 'id' => 'main/credits' ], |
| 2543 | $header |
| 2544 | ); |
| 2545 | $helpAfter['credits'] = $headline; |
| 2546 | $helpAfter['credits'] .= $this->msg( 'api-credits' )->useDatabase( false )->parseAsBlock(); |
| 2547 | if ( !isset( $tocData['main/credits'] ) ) { |
| 2548 | $tocnumber[$level - 1]++; |
| 2549 | $tocnumber[$level] = 0; |
| 2550 | $anchor = 'main/credits'; |
| 2551 | $tocData['main/credits'] = new SectionMetadata( |
| 2552 | tocLevel: count( $tocnumber ) - 1, |
| 2553 | hLevel: $level - 1, |
| 2554 | line: $header, |
| 2555 | number: implode( '.', array_slice( $tocnumber, 0, -1 ) ), |
| 2556 | index: '', |
| 2557 | anchor: $anchor, |
| 2558 | linkAnchor: Sanitizer::escapeIdForLink( $anchor ), |
| 2559 | ); |
| 2560 | // FIXME: The number of the next TOC item after "Credits" will be off by one. |
| 2561 | // Since "Credits" is usually the last section, we don't really mind. |
| 2562 | // Someone should rewrite this code so that the numbers are assigned automatically. |
| 2563 | } |
| 2564 | |
| 2565 | $help = [ |
| 2566 | Html::openElement( 'div', [ 'class' => 'apihelp-general' ] ), |
| 2567 | ...$helpBefore, |
| 2568 | Html::closeElement( 'div' ), |
| 2569 | ...$help, |
| 2570 | ...$helpAfter, |
| 2571 | ]; |
| 2572 | $tocData = [ ...$tocDataBefore, ...$tocData ]; |
| 2573 | } |
| 2574 | |
| 2575 | /** @var bool|null */ |
| 2576 | private $mCanApiHighLimits = null; |
| 2577 | |
| 2578 | /** |
| 2579 | * Check whether the current user is allowed to use high limits |
| 2580 | * @return bool |
| 2581 | */ |
| 2582 | public function canApiHighLimits() { |
| 2583 | if ( $this->mCanApiHighLimits === null ) { |
| 2584 | $this->mCanApiHighLimits = $this->getAuthority()->isAllowed( 'apihighlimits' ); |
| 2585 | } |
| 2586 | |
| 2587 | return $this->mCanApiHighLimits; |
| 2588 | } |
| 2589 | |
| 2590 | /** |
| 2591 | * Overrides to return this instance's module manager. |
| 2592 | * @return ApiModuleManager |
| 2593 | */ |
| 2594 | public function getModuleManager() { |
| 2595 | return $this->mModuleMgr; |
| 2596 | } |
| 2597 | |
| 2598 | /** |
| 2599 | * Fetches the user agent used for this request |
| 2600 | * |
| 2601 | * This returns the value of the 'Api-User-Agent' header, if any, |
| 2602 | * or the standard User-Agent header, otherwise. |
| 2603 | * |
| 2604 | * @return string |
| 2605 | */ |
| 2606 | public function getUserAgent() { |
| 2607 | $agent = (string)$this->getRequest()->getHeader( 'Api-user-agent' ); |
| 2608 | if ( $agent == '' ) { |
| 2609 | $agent = $this->getRequest()->getHeader( 'User-agent' ); |
| 2610 | } |
| 2611 | |
| 2612 | return $agent; |
| 2613 | } |
| 2614 | } |
| 2615 | |
| 2616 | /** |
| 2617 | * For really cool vim folding this needs to be at the end: |
| 2618 | * vim: foldmarker=@{,@} foldmethod=marker |
| 2619 | */ |
| 2620 | |
| 2621 | /** @deprecated class alias since 1.43 */ |
| 2622 | class_alias( ApiMain::class, 'ApiMain' ); |