includes/api/ApiUpload.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Aug 21, 2008
   6  *
   7  * Copyright © 2008 - 2010 Bryan Tong Minh <Bryan.TongMinh@Gmail.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 if ( !defined( 'MEDIAWIKI' ) ) {
  28         // Eclipse helper - will be ignored in production
  29         require_once( "ApiBase.php" );
  30 }
  31
  32 /**
  33  * @ingroup API
  34  */
  35 class ApiUpload extends ApiBase {
  36
  37         /**
  38          * @var UploadBase
  39          */
  40         protected $mUpload = null;
  41
  42         protected $mParams;
  43
  44         public function __construct( $main, $action ) {
  45                 parent::__construct( $main, $action );
  46         }
  47
  48         public function execute() {
  49                 global $wgUser;
  50
  51                 // Check whether upload is enabled
  52                 if ( !UploadBase::isEnabled() ) {
  53                         $this->dieUsageMsg( 'uploaddisabled' );
  54                 }
  55
  56                 // Parameter handling
  57                 $this->mParams = $this->extractRequestParams();
  58                 $request = $this->getMain()->getRequest();
  59                 // Add the uploaded file to the params array
  60                 $this->mParams['file'] = $request->getFileName( 'file' );
  61                 $this->mParams['chunk'] = $request->getFileName( 'chunk' );
  62
  63                 // Copy the session key to the file key, for backward compatibility.
  64                 if( !$this->mParams['filekey'] && $this->mParams['sessionkey'] ) {
  65                         $this->mParams['filekey'] = $this->mParams['sessionkey'];
  66                 }
  67
  68                 // Select an upload module
  69                 if ( !$this->selectUploadModule() ) {
  70                         // This is not a true upload, but a status request or similar
  71                         return;
  72                 }
  73                 if ( !isset( $this->mUpload ) ) {
  74                         $this->dieUsage( 'No upload module set', 'nomodule' );
  75                 }
  76
  77                 // First check permission to upload
  78                 $this->checkPermissions( $wgUser );
  79
  80                 // Fetch the file
  81                 $status = $this->mUpload->fetchFile();
  82                 if ( !$status->isGood() ) {
  83                         $errors = $status->getErrorsArray();
  84                         $error = array_shift( $errors[0] );
  85                         $this->dieUsage( 'Error fetching file from remote source', $error, 0, $errors[0] );
  86                 }
  87
  88                 // Check if the uploaded file is sane
  89                 if ( $this->mParams['chunk'] ) {
  90                         $maxSize = $this->mUpload->getMaxUploadSize( );
  91                         if( $this->mParams['filesize'] > $maxSize ) {
  92                                 $this->dieUsage( 'The file you submitted was too large', 'file-too-large' );
  93                         }
  94         } else {
  95                         $this->verifyUpload();
  96         }
  97
  98
  99                 // Check if the user has the rights to modify or overwrite the requested title
 100                 // (This check is irrelevant if stashing is already requested, since the errors
 101                 //  can always be fixed by changing the title)
 102                 if ( ! $this->mParams['stash'] ) {
 103                         $permErrors = $this->mUpload->verifyTitlePermissions( $wgUser );
 104                         if ( $permErrors !== true ) {
 105                                 $this->dieRecoverableError( $permErrors[0], 'filename' );
 106                         }
 107                 }
 108
 109                 // Prepare the API result
 110                 $result = array();
 111
 112                 $warnings = $this->getApiWarnings();
 113                 if ( $warnings ) {
 114                         $result['result'] = 'Warning';
 115                         $result['warnings'] = $warnings;
 116                         // in case the warnings can be fixed with some further user action, let's stash this upload
 117                         // and return a key they can use to restart it
 118                         try {
 119                                 $result['filekey'] = $this->performStash();
 120                                 $result['sessionkey'] = $result['filekey']; // backwards compatibility
 121                         } catch ( MWException $e ) {
 122                                 $result['warnings']['stashfailed'] = $e->getMessage();
 123                         }
 124                 } elseif ( $this->mParams['chunk'] ) {
 125                     $result['result'] = 'Continue';
 126                         $chunk = $request->getFileTempName( 'chunk' );
 127                         $chunkSize = $request->getFileSize( 'chunk' );
 128             if ($this->mParams['offset'] == 0) {
 129                                 $result['filekey'] = $this->performStash();
 130             } else {
 131                 $status = $this->mUpload->appendChunk($chunk, $chunkSize,
 132                                                       $this->mParams['offset']);
 133                         if ( !$status->isGood() ) {
 134                                     $this->dieUsage( $status->getWikiText(), 'stashfailed' );
 135                 } else {
 136                     $result['filekey'] = $this->mParams['filekey'];
 137                     if($this->mParams['offset'] + $chunkSize == $this->mParams['filesize']) {
 138                         $this->mUpload->finalizeFile();
 139                         $result['result'] = 'Done';
 140                     }
 141                 }
 142             }
 143             $result['offset'] = $this->mParams['offset'] + $chunkSize;
 144                 } elseif ( $this->mParams['stash'] ) {
 145                         // Some uploads can request they be stashed, so as not to publish them immediately.
 146                         // In this case, a failure to stash ought to be fatal
 147                         try {
 148                                 $result['result'] = 'Success';
 149                                 $result['filekey'] = $this->performStash();
 150                                 $result['sessionkey'] = $result['filekey']; // backwards compatibility
 151                         } catch ( MWException $e ) {
 152                                 $this->dieUsage( $e->getMessage(), 'stashfailed' );
 153                         }
 154                 } else {
 155                         // This is the most common case -- a normal upload with no warnings
 156                         // $result will be formatted properly for the API already, with a status
 157                         $result = $this->performUpload();
 158                 }
 159
 160                 if ( $result['result'] === 'Success' ) {
 161                         $result['imageinfo'] = $this->mUpload->getImageInfo( $this->getResult() );
 162                 }
 163
 164                 $this->getResult()->addValue( null, $this->getModuleName(), $result );
 165
 166                 // Cleanup any temporary mess
 167                 $this->mUpload->cleanupTempFile();
 168         }
 169
 170         /**
 171          * Stash the file and return the file key
 172          * Also re-raises exceptions with slightly more informative message strings (useful for API)
 173          * @throws MWException
 174          * @return String file key
 175          */
 176         function performStash() {
 177                 try {
 178                         $fileKey = $this->mUpload->stashFile()->getFileKey();
 179                 } catch ( MWException $e ) {
 180                         $message = 'Stashing temporary file failed: ' . get_class( $e ) . ' ' . $e->getMessage();
 181                         wfDebug( __METHOD__ . ' ' . $message . "\n");
 182                         throw new MWException( $message );
 183                 }
 184                 return $fileKey;
 185         }
 186
 187         /**
 188          * Throw an error that the user can recover from by providing a better
 189          * value for $parameter
 190          *
 191          * @param $error array Error array suitable for passing to dieUsageMsg()
 192          * @param $parameter string Parameter that needs revising
 193          * @param $data array Optional extra data to pass to the user
 194          * @throws UsageException
 195          */
 196         function dieRecoverableError( $error, $parameter, $data = array() ) {
 197                 try {
 198                         $data['filekey'] = $this->performStash();
 199                         $data['sessionkey'] = $data['filekey'];
 200                 } catch ( MWException $e ) {
 201                         $data['stashfailed'] = $e->getMessage();
 202                 }
 203                 $data['invalidparameter'] = $parameter;
 204
 205                 $parsed = $this->parseMsg( $error );
 206                 $this->dieUsage( $parsed['info'], $parsed['code'], 0, $data );
 207         }
 208
 209         /**
 210          * Select an upload module and set it to mUpload. Dies on failure. If the
 211          * request was a status request and not a true upload, returns false;
 212          * otherwise true
 213          *
 214          * @return bool
 215          */
 216         protected function selectUploadModule() {
 217                 $request = $this->getMain()->getRequest();
 218
 219                 // chunk or one and only one of the following parameters is needed
 220                 if(!$this->mParams['chunk'])
 221                         $this->requireOnlyOneParameter( $this->mParams,
 222                                         'filekey', 'file', 'url', 'statuskey' );
 223
 224                 if ( $this->mParams['statuskey'] ) {
 225                         $this->checkAsyncDownloadEnabled();
 226
 227                         // Status request for an async upload
 228                         $sessionData = UploadFromUrlJob::getSessionData( $this->mParams['statuskey'] );
 229                         if ( !isset( $sessionData['result'] ) ) {
 230                                 $this->dieUsage( 'No result in session data', 'missingresult' );
 231                         }
 232                         if ( $sessionData['result'] == 'Warning' ) {
 233                                 $sessionData['warnings'] = $this->transformWarnings( $sessionData['warnings'] );
 234                                 $sessionData['sessionkey'] = $this->mParams['statuskey'];
 235                         }
 236                         $this->getResult()->addValue( null, $this->getModuleName(), $sessionData );
 237                         return false;
 238
 239                 }
 240
 241                 // The following modules all require the filename parameter to be set
 242                 if ( is_null( $this->mParams['filename'] ) ) {
 243                         $this->dieUsageMsg( array( 'missingparam', 'filename' ) );
 244                 }
 245
 246                 if ( $this->mParams['filekey'] ) {
 247                         // Upload stashed in a previous request
 248                         if ( !UploadFromStash::isValidKey( $this->mParams['filekey'] ) ) {
 249                                 $this->dieUsageMsg( 'invalid-file-key' );
 250                         }
 251
 252                         if( class_exists( 'RequestContext' ) ) {
 253                                 // context allows access to the current user without creating new $wgUser references
 254                                 $context = $this->createContext();
 255                                 $this->mUpload = new UploadFromStash( $context->getUser() );
 256                         } else {
 257                                 // this is here to maintain 1.17 compatibility, so these changes can
 258                                 // be merged into production
 259                                 // remove this after we've moved to 1.18
 260                                 global $wgUser;
 261                                 $this->mUpload = new UploadFromStash( $wgUser );
 262                         }
 263
 264                         $this->mUpload->initialize( $this->mParams['filekey'], $this->mParams['filename'] );
 265
 266                 } elseif ( isset( $this->mParams['chunk'] ) ) {
 267                         // Start new Chunk upload
 268                         $this->mUpload = new UploadFromFile();
 269                         $this->mUpload->initialize(
 270                                 $this->mParams['filename'],
 271                                 $request->getUpload( 'chunk' )
 272                         );
 273                 } elseif ( isset( $this->mParams['file'] ) ) {
 274                         $this->mUpload = new UploadFromFile();
 275                         $this->mUpload->initialize(
 276                                 $this->mParams['filename'],
 277                                 $request->getUpload( 'file' )
 278                         );
 279                 } elseif ( isset( $this->mParams['url'] ) ) {
 280                         // Make sure upload by URL is enabled:
 281                         if ( !UploadFromUrl::isEnabled() ) {
 282                                 $this->dieUsageMsg( 'copyuploaddisabled' );
 283                         }
 284
 285                         $async = false;
 286                         if ( $this->mParams['asyncdownload'] ) {
 287                                 $this->checkAsyncDownloadEnabled();
 288
 289                                 if ( $this->mParams['leavemessage'] && !$this->mParams['ignorewarnings'] ) {
 290                                         $this->dieUsage( 'Using leavemessage without ignorewarnings is not supported',
 291                                                 'missing-ignorewarnings' );
 292                                 }
 293
 294                                 if ( $this->mParams['leavemessage'] ) {
 295                                         $async = 'async-leavemessage';
 296                                 } else {
 297                                         $async = 'async';
 298                                 }
 299                         }
 300                         $this->mUpload = new UploadFromUrl;
 301                         $this->mUpload->initialize( $this->mParams['filename'],
 302                                 $this->mParams['url'], $async );
 303
 304                 }
 305
 306                 return true;
 307         }
 308
 309         /**
 310          * Checks that the user has permissions to perform this upload.
 311          * Dies with usage message on inadequate permissions.
 312          * @param $user User The user to check.
 313          */
 314         protected function checkPermissions( $user ) {
 315                 // Check whether the user has the appropriate permissions to upload anyway
 316                 $permission = $this->mUpload->isAllowed( $user );
 317
 318                 if ( $permission !== true ) {
 319                         if ( !$user->isLoggedIn() ) {
 320                                 $this->dieUsageMsg( array( 'mustbeloggedin', 'upload' ) );
 321                         } else {
 322                                 $this->dieUsageMsg( 'badaccess-groups' );
 323                         }
 324                 }
 325         }
 326
 327         /**
 328          * Performs file verification, dies on error.
 329          */
 330         protected function verifyUpload( ) {
 331                 global $wgFileExtensions;
 332
 333                 $verification = $this->mUpload->verifyUpload( );
 334                 if ( $verification['status'] === UploadBase::OK ) {
 335                         return;
 336                 }
 337
 338                 // TODO: Move them to ApiBase's message map
 339                 switch( $verification['status'] ) {
 340                         // Recoverable errors
 341                         case UploadBase::MIN_LENGTH_PARTNAME:
 342                                 $this->dieRecoverableError( 'filename-tooshort', 'filename' );
 343                                 break;
 344                         case UploadBase::ILLEGAL_FILENAME:
 345                                 $this->dieRecoverableError( 'illegal-filename', 'filename',
 346                                                 array( 'filename' => $verification['filtered'] ) );
 347                                 break;
 348                         case UploadBase::FILETYPE_MISSING:
 349                                 $this->dieRecoverableError( 'filetype-missing', 'filename' );
 350                                 break;
 351                         case UploadBase::WINDOWS_NONASCII_FILENAME:
 352                                 $this->dieRecoverableError( 'windows-nonascii-filename', 'filename' );
 353                                 break;
 354
 355                         // Unrecoverable errors
 356                         case UploadBase::EMPTY_FILE:
 357                                 $this->dieUsage( 'The file you submitted was empty', 'empty-file' );
 358                                 break;
 359                         case UploadBase::FILE_TOO_LARGE:
 360                                 $this->dieUsage( 'The file you submitted was too large', 'file-too-large' );
 361                                 break;
 362
 363                         case UploadBase::FILETYPE_BADTYPE:
 364                                 $this->dieUsage( 'This type of file is banned', 'filetype-banned',
 365                                                 0, array(
 366                                                         'filetype' => $verification['finalExt'],
 367                                                         'allowed' => $wgFileExtensions
 368                                                 ) );
 369                                 break;
 370                         case UploadBase::VERIFICATION_ERROR:
 371                                 $this->getResult()->setIndexedTagName( $verification['details'], 'detail' );
 372                                 $this->dieUsage( 'This file did not pass file verification', 'verification-error',
 373                                                 0, array( 'details' => $verification['details'] ) );
 374                                 break;
 375                         case UploadBase::HOOK_ABORTED:
 376                                 $this->dieUsage( "The modification you tried to make was aborted by an extension hook",
 377                                                 'hookaborted', 0, array( 'error' => $verification['error'] ) );
 378                                 break;
 379                         default:
 380                                 $this->dieUsage( 'An unknown error occurred', 'unknown-error',
 381                                                 0, array( 'code' =>  $verification['status'] ) );
 382                                 break;
 383                 }
 384         }
 385
 386
 387         /**
 388          * Check warnings if ignorewarnings is not set.
 389          * Returns a suitable array for inclusion into API results if there were warnings
 390          * Returns the empty array if there were no warnings
 391          *
 392          * @return array
 393          */
 394         protected function getApiWarnings() {
 395                 $warnings = array();
 396
 397                 if ( !$this->mParams['ignorewarnings'] ) {
 398                         $warnings = $this->mUpload->checkWarnings();
 399                 }
 400                 return $this->transformWarnings( $warnings );
 401         }
 402
 403         protected function transformWarnings( $warnings ) {
 404                 if ( $warnings ) {
 405                         // Add indices
 406                         $result = $this->getResult();
 407                         $result->setIndexedTagName( $warnings, 'warning' );
 408
 409                         if ( isset( $warnings['duplicate'] ) ) {
 410                                 $dupes = array();
 411                                 foreach ( $warnings['duplicate'] as $dupe ) {
 412                                         $dupes[] = $dupe->getName();
 413                                 }
 414                                 $result->setIndexedTagName( $dupes, 'duplicate' );
 415                                 $warnings['duplicate'] = $dupes;
 416                         }
 417
 418                         if ( isset( $warnings['exists'] ) ) {
 419                                 $warning = $warnings['exists'];
 420                                 unset( $warnings['exists'] );
 421                                 $warnings[$warning['warning']] = $warning['file']->getName();
 422                         }
 423                 }
 424                 return $warnings;
 425         }
 426
 427
 428         /**
 429          * Perform the actual upload. Returns a suitable result array on success;
 430          * dies on failure.
 431          */
 432         protected function performUpload() {
 433                 global $wgUser;
 434
 435                 // Use comment as initial page text by default
 436                 if ( is_null( $this->mParams['text'] ) ) {
 437                         $this->mParams['text'] = $this->mParams['comment'];
 438                 }
 439
 440                 $file = $this->mUpload->getLocalFile();
 441                 $watch = $this->getWatchlistValue( $this->mParams['watchlist'], $file->getTitle() );
 442
 443                 // Deprecated parameters
 444                 if ( $this->mParams['watch'] ) {
 445                         $watch = true;
 446                 }
 447
 448                 // No errors, no warnings: do the upload
 449                 $status = $this->mUpload->performUpload( $this->mParams['comment'],
 450                         $this->mParams['text'], $watch, $wgUser );
 451
 452                 if ( !$status->isGood() ) {
 453                         $error = $status->getErrorsArray();
 454
 455                         if ( count( $error ) == 1 && $error[0][0] == 'async' ) {
 456                                 // The upload can not be performed right now, because the user
 457                                 // requested so
 458                                 return array(
 459                                         'result' => 'Queued',
 460                                         'statuskey' => $error[0][1],
 461                                 );
 462                         } else {
 463                                 $this->getResult()->setIndexedTagName( $error, 'error' );
 464
 465                                 $this->dieUsage( 'An internal error occurred', 'internal-error', 0, $error );
 466                         }
 467                 }
 468
 469                 $file = $this->mUpload->getLocalFile();
 470
 471                 $result['result'] = 'Success';
 472                 $result['filename'] = $file->getName();
 473
 474                 return $result;
 475         }
 476
 477         /**
 478          * Checks if asynchronous copy uploads are enabled and throws an error if they are not.
 479          */
 480         protected function checkAsyncDownloadEnabled() {
 481                 global $wgAllowAsyncCopyUploads;
 482                 if ( !$wgAllowAsyncCopyUploads ) {
 483                         $this->dieUsage( 'Asynchronous copy uploads disabled', 'asynccopyuploaddisabled');
 484                 }
 485         }
 486
 487         public function mustBePosted() {
 488                 return true;
 489         }
 490
 491         public function isWriteMode() {
 492                 return true;
 493         }
 494
 495         public function getAllowedParams() {
 496                 $params = array(
 497                         'filename' => array(
 498                                 ApiBase::PARAM_TYPE => 'string',
 499                         ),
 500                         'comment' => array(
 501                                 ApiBase::PARAM_DFLT => ''
 502                         ),
 503                         'text' => null,
 504                         'token' => null,
 505                         'watch' => array(
 506                                 ApiBase::PARAM_DFLT => false,
 507                                 ApiBase::PARAM_DEPRECATED => true,
 508                         ),
 509                         'watchlist' => array(
 510                                 ApiBase::PARAM_DFLT => 'preferences',
 511                                 ApiBase::PARAM_TYPE => array(
 512                                         'watch',
 513                                         'preferences',
 514                                         'nochange'
 515                                 ),
 516                         ),
 517                         'ignorewarnings' => false,
 518                         'file' => null,
 519                         'url' => null,
 520                         'filekey' => null,
 521                         'sessionkey' => array(
 522                                 ApiBase::PARAM_DFLT => null,
 523                                 ApiBase::PARAM_DEPRECATED => true,
 524                         ),
 525                         'stash' => false,
 526
 527                         'filesize' => null,
 528                         'offset' => null,
 529                         'chunk' => null,
 530
 531                         'asyncdownload' => false,
 532                         'leavemessage' => false,
 533                         'statuskey' => null,
 534                 );
 535
 536                 return $params;
 537         }
 538
 539         public function getParamDescription() {
 540                 $params = array(
 541                         'filename' => 'Target filename',
 542                         'token' => 'Edit token. You can get one of these through prop=info',
 543                         'comment' => 'Upload comment. Also used as the initial page text for new files if "text" is not specified',
 544                         'text' => 'Initial page text for new files',
 545                         'watch' => 'Watch the page',
 546                         'watchlist' => 'Unconditionally add or remove the page from your watchlist, use preferences or do not change watch',
 547                         'ignorewarnings' => 'Ignore any warnings',
 548                         'file' => 'File contents',
 549                         'url' => 'Url to fetch the file from',
 550                         'filekey' => 'Key that identifies a previous upload that was stashed temporarily.',
 551                         'sessionkey' => 'Same as filekey, maintained for backward compatibility.',
 552                         'stash' => 'If set, the server will not add the file to the repository and stash it temporarily.',
 553
 554                         'chunk' => 'Chunk contents',
 555                         'offset' => 'Offset of chunk in bytes',
 556                         'filesize' => 'Filesize of entire upload',
 557
 558                         'asyncdownload' => 'Make fetching a URL asynchronous',
 559                         'leavemessage' => 'If asyncdownload is used, leave a message on the user talk page if finished',
 560                         'statuskey' => 'Fetch the upload status for this file key',
 561                 );
 562
 563                 return $params;
 564
 565         }
 566
 567         public function getDescription() {
 568                 return array(
 569                         'Upload a file, or get the status of pending uploads. Several methods are available:',
 570                         ' * Upload file contents directly, using the "file" parameter',
 571                         ' * Have the MediaWiki server fetch a file from a URL, using the "url" parameter',
 572                         ' * Complete an earlier upload that failed due to warnings, using the "filekey" parameter',
 573                         'Note that the HTTP POST must be done as a file upload (i.e. using multipart/form-data) when',
 574                         'sending the "file".  Also you must get and send an edit token before doing any upload stuff'
 575                 );
 576         }
 577
 578         public function getPossibleErrors() {
 579                 return array_merge( parent::getPossibleErrors(),
 580                         $this->getRequireOnlyOneParameterErrorMessages( array( 'filekey', 'file', 'url', 'statuskey' ) ),
 581                         array(
 582                                 array( 'uploaddisabled' ),
 583                                 array( 'invalid-file-key' ),
 584                                 array( 'uploaddisabled' ),
 585                                 array( 'mustbeloggedin', 'upload' ),
 586                                 array( 'badaccess-groups' ),
 587                                 array( 'code' => 'fetchfileerror', 'info' => '' ),
 588                                 array( 'code' => 'nomodule', 'info' => 'No upload module set' ),
 589                                 array( 'code' => 'empty-file', 'info' => 'The file you submitted was empty' ),
 590                                 array( 'code' => 'filetype-missing', 'info' => 'The file is missing an extension' ),
 591                                 array( 'code' => 'filename-tooshort', 'info' => 'The filename is too short' ),
 592                                 array( 'code' => 'overwrite', 'info' => 'Overwriting an existing file is not allowed' ),
 593                                 array( 'code' => 'stashfailed', 'info' => 'Stashing temporary file failed' ),
 594                                 array( 'code' => 'internal-error', 'info' => 'An internal error occurred' ),
 595                                 array( 'code' => 'asynccopyuploaddisabled', 'info' => 'Asynchronous copy uploads disabled' ),
 596                         )
 597                 );
 598         }
 599
 600         public function needsToken() {
 601                 return true;
 602         }
 603
 604         public function getTokenSalt() {
 605                 return '';
 606         }
 607
 608         protected function getExamples() {
 609                 return array(
 610                         'Upload from a URL:',
 611                         '    api.php?action=upload&filename=Wiki.png&url=http%3A//upload.wikimedia.org/wikipedia/en/b/bc/Wiki.png',
 612                         'Complete an upload that failed due to warnings:',
 613                         '    api.php?action=upload&filename=Wiki.png&filekey=filekey&ignorewarnings=1',
 614                 );
 615         }
 616
 617         public function getHelpUrls() {
 618                 return 'http://www.mediawiki.org/wiki/API:Upload';
 619         }
 620
 621         public function getVersion() {
 622                 return __CLASS__ . ': $Id$';
 623         }
 624 }