includes/filerepo/FSRepo.php

   1 <?php
   2 /**
   3  * A repository for files accessible via the local filesystem.
   4  *
   5  * @file
   6  * @ingroup FileRepo
   7  */
   8
   9 /**
  10  * A repository for files accessible via the local filesystem. Does not support
  11  * database access or registration.
  12  * @ingroup FileRepo
  13  */
  14 class FSRepo extends FileRepo {
  15         var $directory, $deletedDir, $deletedHashLevels, $fileMode;
  16         var $fileFactory = array( 'UnregisteredLocalFile', 'newFromTitle' );
  17         var $oldFileFactory = false;
  18         var $pathDisclosureProtection = 'simple';
  19
  20         function __construct( $info ) {
  21                 parent::__construct( $info );
  22
  23                 // Required settings
  24                 $this->directory = $info['directory'];
  25                 $this->url = $info['url'];
  26
  27                 // Optional settings
  28                 $this->hashLevels = isset( $info['hashLevels'] ) ? $info['hashLevels'] : 2;
  29                 $this->deletedHashLevels = isset( $info['deletedHashLevels'] ) ?
  30                         $info['deletedHashLevels'] : $this->hashLevels;
  31                 $this->deletedDir = isset( $info['deletedDir'] ) ? $info['deletedDir'] : false;
  32                 $this->fileMode = isset( $info['fileMode'] ) ? $info['fileMode'] : 0644;
  33                 if ( isset( $info['thumbDir'] ) ) {
  34                         $this->thumbDir =  $info['thumbDir'];
  35                 } else {
  36                         $this->thumbDir = "{$this->directory}/thumb";
  37                 }
  38                 if ( isset( $info['thumbUrl'] ) ) {
  39                         $this->thumbUrl = $info['thumbUrl'];
  40                 } else {
  41                         $this->thumbUrl = "{$this->url}/thumb";
  42                 }
  43         }
  44
  45         /**
  46          * Get the public root directory of the repository.
  47          */
  48         function getRootDirectory() {
  49                 return $this->directory;
  50         }
  51
  52         /**
  53          * Get the public root URL of the repository
  54          */
  55         function getRootUrl() {
  56                 return $this->url;
  57         }
  58
  59         /**
  60          * Returns true if the repository uses a multi-level directory structure
  61          */
  62         function isHashed() {
  63                 return (bool)$this->hashLevels;
  64         }
  65
  66         /**
  67          * Get the local directory corresponding to one of the three basic zones
  68          */
  69         function getZonePath( $zone ) {
  70                 switch ( $zone ) {
  71                         case 'public':
  72                                 return $this->directory;
  73                         case 'temp':
  74                                 return "{$this->directory}/temp";
  75                         case 'deleted':
  76                                 return $this->deletedDir;
  77                         case 'thumb':
  78                                 return $this->thumbDir;
  79                         default:
  80                                 return false;
  81                 }
  82         }
  83
  84         /**
  85          * @see FileRepo::getZoneUrl()
  86          */
  87         function getZoneUrl( $zone ) {
  88                 switch ( $zone ) {
  89                         case 'public':
  90                                 return $this->url;
  91                         case 'temp':
  92                                 return "{$this->url}/temp";
  93                         case 'deleted':
  94                                 return parent::getZoneUrl( $zone ); // no public URL
  95                         case 'thumb':
  96                                 return $this->thumbUrl;
  97                         default:
  98                                 return parent::getZoneUrl( $zone );
  99                 }
 100         }
 101
 102         /**
 103          * Get a URL referring to this repository, with the private mwrepo protocol.
 104          * The suffix, if supplied, is considered to be unencoded, and will be
 105          * URL-encoded before being returned.
 106          */
 107         function getVirtualUrl( $suffix = false ) {
 108                 $path = 'mwrepo://' . $this->name;
 109                 if ( $suffix !== false ) {
 110                         $path .= '/' . rawurlencode( $suffix );
 111                 }
 112                 return $path;
 113         }
 114
 115         /**
 116          * Get the local path corresponding to a virtual URL
 117          */
 118         function resolveVirtualUrl( $url ) {
 119                 if ( substr( $url, 0, 9 ) != 'mwrepo://' ) {
 120                         throw new MWException( __METHOD__.': unknown protoocl' );
 121                 }
 122
 123                 $bits = explode( '/', substr( $url, 9 ), 3 );
 124                 if ( count( $bits ) != 3 ) {
 125                         throw new MWException( __METHOD__.": invalid mwrepo URL: $url" );
 126                 }
 127                 list( $repo, $zone, $rel ) = $bits;
 128                 if ( $repo !== $this->name ) {
 129                         throw new MWException( __METHOD__.": fetching from a foreign repo is not supported" );
 130                 }
 131                 $base = $this->getZonePath( $zone );
 132                 if ( !$base ) {
 133                         throw new MWException( __METHOD__.": invalid zone: $zone" );
 134                 }
 135                 return $base . '/' . rawurldecode( $rel );
 136         }
 137
 138         /**
 139          * Store a batch of files
 140          *
 141          * @param $triplets Array: (src,zone,dest) triplets as per store()
 142          * @param $flags Integer: bitwise combination of the following flags:
 143          *     self::DELETE_SOURCE     Delete the source file after upload
 144          *     self::OVERWRITE         Overwrite an existing destination file instead of failing
 145          *     self::OVERWRITE_SAME    Overwrite the file if the destination exists and has the
 146          *                             same contents as the source
 147          */
 148         function storeBatch( $triplets, $flags = 0 ) {
 149                 if ( !wfMkdirParents( $this->directory ) ) {
 150                         return $this->newFatal( 'upload_directory_missing', $this->directory );
 151                 }
 152                 if ( !is_writable( $this->directory ) ) {
 153                         return $this->newFatal( 'upload_directory_read_only', $this->directory );
 154                 }
 155                 $status = $this->newGood();
 156                 foreach ( $triplets as $i => $triplet ) {
 157                         list( $srcPath, $dstZone, $dstRel ) = $triplet;
 158
 159                         $root = $this->getZonePath( $dstZone );
 160                         if ( !$root ) {
 161                                 throw new MWException( "Invalid zone: $dstZone" );
 162                         }
 163                         if ( !$this->validateFilename( $dstRel ) ) {
 164                                 throw new MWException( 'Validation error in $dstRel' );
 165                         }
 166                         $dstPath = "$root/$dstRel";
 167                         $dstDir = dirname( $dstPath );
 168
 169                         if ( !is_dir( $dstDir ) ) {
 170                                 if ( !wfMkdirParents( $dstDir ) ) {
 171                                         return $this->newFatal( 'directorycreateerror', $dstDir );
 172                                 }
 173                                 if ( $dstZone == 'deleted' ) {
 174                                         $this->initDeletedDir( $dstDir );
 175                                 }
 176                         }
 177
 178                         if ( self::isVirtualUrl( $srcPath ) ) {
 179                                 $srcPath = $triplets[$i][0] = $this->resolveVirtualUrl( $srcPath );
 180                         }
 181                         if ( !is_file( $srcPath ) ) {
 182                                 // Make a list of files that don't exist for return to the caller
 183                                 $status->fatal( 'filenotfound', $srcPath );
 184                                 continue;
 185                         }
 186                         if ( !( $flags & self::OVERWRITE ) && file_exists( $dstPath ) ) {
 187                                 if ( $flags & self::OVERWRITE_SAME ) {
 188                                         $hashSource = sha1_file( $srcPath );
 189                                         $hashDest = sha1_file( $dstPath );
 190                                         if ( $hashSource != $hashDest ) {
 191                                                 $status->fatal( 'fileexistserror', $dstPath );
 192                                         }
 193                                 } else {
 194                                         $status->fatal( 'fileexistserror', $dstPath );
 195                                 }
 196                         }
 197                 }
 198
 199                 $deleteDest = wfIsWindows() && ( $flags & self::OVERWRITE );
 200
 201                 // Abort now on failure
 202                 if ( !$status->ok ) {
 203                         return $status;
 204                 }
 205
 206                 foreach ( $triplets as $triplet ) {
 207                         list( $srcPath, $dstZone, $dstRel ) = $triplet;
 208                         $root = $this->getZonePath( $dstZone );
 209                         $dstPath = "$root/$dstRel";
 210                         $good = true;
 211
 212                         if ( $flags & self::DELETE_SOURCE ) {
 213                                 if ( $deleteDest ) {
 214                                         unlink( $dstPath );
 215                                 }
 216                                 if ( !rename( $srcPath, $dstPath ) ) {
 217                                         $status->error( 'filerenameerror', $srcPath, $dstPath );
 218                                         $good = false;
 219                                 }
 220                         } else {
 221                                 if ( !copy( $srcPath, $dstPath ) ) {
 222                                         $status->error( 'filecopyerror', $srcPath, $dstPath );
 223                                         $good = false;
 224                                 }
 225                         }
 226                         if ( $good ) {
 227                                 $this->chmod( $dstPath );
 228                                 $status->successCount++;
 229                         } else {
 230                                 $status->failCount++;
 231                         }
 232                 }
 233                 return $status;
 234         }
 235
 236         function append( $srcPath, $toAppendPath, $flags = 0 ) {
 237                 $status = $this->newGood();
 238
 239                 // Resolve the virtual URL
 240                 if ( self::isVirtualUrl( $srcPath ) ) {
 241                         $srcPath = $this->resolveVirtualUrl( $srcPath );
 242                 }
 243                 // Make sure the files are there
 244                 if ( !is_file( $srcPath ) )
 245                         $status->fatal( 'filenotfound', $srcPath );
 246
 247                 if ( !is_file( $toAppendPath ) )
 248                         $status->fatal( 'filenotfound', $toAppendPath );
 249
 250                 if ( !$status->isOk() ) return $status;
 251
 252                 // Do the append
 253                 $chunk = file_get_contents( $toAppendPath );
 254                 if( $chunk === false ) {
 255                         $status->fatal( 'fileappenderrorread', $toAppendPath );
 256                 }
 257
 258                 if( $status->isOk() ) {
 259                         if ( file_put_contents( $srcPath, $chunk, FILE_APPEND ) ) {
 260                                 $status->value = $srcPath;
 261                         } else {
 262                                 $status->fatal( 'fileappenderror', $toAppendPath,  $srcPath);
 263                         }
 264                 }
 265
 266                 if ( $flags & self::DELETE_SOURCE ) {
 267                         unlink( $toAppendPath );
 268                 }
 269
 270                 return $status;
 271         }
 272
 273         /**
 274          * Checks existence of specified array of files.
 275          *
 276          * @param $files Array: URLs of files to check
 277          * @param $flags Integer: bitwise combination of the following flags:
 278          *     self::FILES_ONLY     Mark file as existing only if it is a file (not directory)
 279          * @return Either array of files and existence flags, or false
 280          */
 281         function fileExistsBatch( $files, $flags = 0 ) {
 282                 if ( !file_exists( $this->directory ) || !is_readable( $this->directory ) ) {
 283                         return false;
 284                 }
 285                 $result = array();
 286                 foreach ( $files as $key => $file ) {
 287                         if ( self::isVirtualUrl( $file ) ) {
 288                                 $file = $this->resolveVirtualUrl( $file );
 289                         }
 290                         if( $flags & self::FILES_ONLY ) {
 291                                 $result[$key] = is_file( $file );
 292                         } else {
 293                                 $result[$key] = file_exists( $file );
 294                         }
 295                 }
 296
 297                 return $result;
 298         }
 299
 300         /**
 301          * Take all available measures to prevent web accessibility of new deleted
 302          * directories, in case the user has not configured offline storage
 303          */
 304         protected function initDeletedDir( $dir ) {
 305                 // Add a .htaccess file to the root of the deleted zone
 306                 $root = $this->getZonePath( 'deleted' );
 307                 if ( !file_exists( "$root/.htaccess" ) ) {
 308                         file_put_contents( "$root/.htaccess", "Deny from all\n" );
 309                 }
 310                 // Seed new directories with a blank index.html, to prevent crawling
 311                 file_put_contents( "$dir/index.html", '' );
 312         }
 313
 314         /**
 315          * Pick a random name in the temp zone and store a file to it.
 316          * @param $originalName String: the base name of the file as specified
 317          *     by the user. The file extension will be maintained.
 318          * @param $srcPath String: the current location of the file.
 319          * @return FileRepoStatus object with the URL in the value.
 320          */
 321         function storeTemp( $originalName, $srcPath ) {
 322                 $date = gmdate( "YmdHis" );
 323                 $hashPath = $this->getHashPath( $originalName );
 324                 $dstRel = "$hashPath$date!$originalName";
 325                 $dstUrlRel = $hashPath . $date . '!' . rawurlencode( $originalName );
 326
 327                 $result = $this->store( $srcPath, 'temp', $dstRel );
 328                 $result->value = $this->getVirtualUrl( 'temp' ) . '/' . $dstUrlRel;
 329                 return $result;
 330         }
 331
 332         /**
 333          * Remove a temporary file or mark it for garbage collection
 334          * @param $virtualUrl String: the virtual URL returned by storeTemp
 335          * @return Boolean: true on success, false on failure
 336          */
 337         function freeTemp( $virtualUrl ) {
 338                 $temp = "mwrepo://{$this->name}/temp";
 339                 if ( substr( $virtualUrl, 0, strlen( $temp ) ) != $temp ) {
 340                         wfDebug( __METHOD__.": Invalid virtual URL\n" );
 341                         return false;
 342                 }
 343                 $path = $this->resolveVirtualUrl( $virtualUrl );
 344                 wfSuppressWarnings();
 345                 $success = unlink( $path );
 346                 wfRestoreWarnings();
 347                 return $success;
 348         }
 349
 350         /**
 351          * Publish a batch of files
 352          * @param $triplets Array: (source,dest,archive) triplets as per publish()
 353          * @param $flags Integer: bitfield, may be FileRepo::DELETE_SOURCE to indicate
 354          *        that the source files should be deleted if possible
 355          */
 356         function publishBatch( $triplets, $flags = 0 ) {
 357                 // Perform initial checks
 358                 if ( !wfMkdirParents( $this->directory ) ) {
 359                         return $this->newFatal( 'upload_directory_missing', $this->directory );
 360                 }
 361                 if ( !is_writable( $this->directory ) ) {
 362                         return $this->newFatal( 'upload_directory_read_only', $this->directory );
 363                 }
 364                 $status = $this->newGood( array() );
 365                 foreach ( $triplets as $i => $triplet ) {
 366                         list( $srcPath, $dstRel, $archiveRel ) = $triplet;
 367
 368                         if ( substr( $srcPath, 0, 9 ) == 'mwrepo://' ) {
 369                                 $triplets[$i][0] = $srcPath = $this->resolveVirtualUrl( $srcPath );
 370                         }
 371                         if ( !$this->validateFilename( $dstRel ) ) {
 372                                 throw new MWException( 'Validation error in $dstRel' );
 373                         }
 374                         if ( !$this->validateFilename( $archiveRel ) ) {
 375                                 throw new MWException( 'Validation error in $archiveRel' );
 376                         }
 377                         $dstPath = "{$this->directory}/$dstRel";
 378                         $archivePath = "{$this->directory}/$archiveRel";
 379
 380                         $dstDir = dirname( $dstPath );
 381                         $archiveDir = dirname( $archivePath );
 382                         // Abort immediately on directory creation errors since they're likely to be repetitive
 383                         if ( !is_dir( $dstDir ) && !wfMkdirParents( $dstDir ) ) {
 384                                 return $this->newFatal( 'directorycreateerror', $dstDir );
 385                         }
 386                         if ( !is_dir( $archiveDir ) && !wfMkdirParents( $archiveDir ) ) {
 387                                 return $this->newFatal( 'directorycreateerror', $archiveDir );
 388                         }
 389                         if ( !is_file( $srcPath ) ) {
 390                                 // Make a list of files that don't exist for return to the caller
 391                                 $status->fatal( 'filenotfound', $srcPath );
 392                         }
 393                 }
 394
 395                 if ( !$status->ok ) {
 396                         return $status;
 397                 }
 398
 399                 foreach ( $triplets as $i => $triplet ) {
 400                         list( $srcPath, $dstRel, $archiveRel ) = $triplet;
 401                         $dstPath = "{$this->directory}/$dstRel";
 402                         $archivePath = "{$this->directory}/$archiveRel";
 403
 404                         // Archive destination file if it exists
 405                         if( is_file( $dstPath ) ) {
 406                                 // Check if the archive file exists
 407                                 // This is a sanity check to avoid data loss. In UNIX, the rename primitive
 408                                 // unlinks the destination file if it exists. DB-based synchronisation in
 409                                 // publishBatch's caller should prevent races. In Windows there's no
 410                                 // problem because the rename primitive fails if the destination exists.
 411                                 if ( is_file( $archivePath ) ) {
 412                                         $success = false;
 413                                 } else {
 414                                         wfSuppressWarnings();
 415                                         $success = rename( $dstPath, $archivePath );
 416                                         wfRestoreWarnings();
 417                                 }
 418
 419                                 if( !$success ) {
 420                                         $status->error( 'filerenameerror',$dstPath, $archivePath );
 421                                         $status->failCount++;
 422                                         continue;
 423                                 } else {
 424                                         wfDebug(__METHOD__.": moved file $dstPath to $archivePath\n");
 425                                 }
 426                                 $status->value[$i] = 'archived';
 427                         } else {
 428                                 $status->value[$i] = 'new';
 429                         }
 430
 431                         $good = true;
 432                         wfSuppressWarnings();
 433                         if ( $flags & self::DELETE_SOURCE ) {
 434                                 if ( !rename( $srcPath, $dstPath ) ) {
 435                                         $status->error( 'filerenameerror', $srcPath, $dstPath );
 436                                         $good = false;
 437                                 }
 438                         } else {
 439                                 if ( !copy( $srcPath, $dstPath ) ) {
 440                                         $status->error( 'filecopyerror', $srcPath, $dstPath );
 441                                         $good = false;
 442                                 }
 443                         }
 444                         wfRestoreWarnings();
 445
 446                         if ( $good ) {
 447                                 $status->successCount++;
 448                                 wfDebug(__METHOD__.": wrote tempfile $srcPath to $dstPath\n");
 449                                 // Thread-safe override for umask
 450                                 $this->chmod( $dstPath );
 451                         } else {
 452                                 $status->failCount++;
 453                         }
 454                 }
 455                 return $status;
 456         }
 457
 458         /**
 459          * Move a group of files to the deletion archive.
 460          * If no valid deletion archive is configured, this may either delete the
 461          * file or throw an exception, depending on the preference of the repository.
 462          *
 463          * @param $sourceDestPairs Array of source/destination pairs. Each element
 464          *        is a two-element array containing the source file path relative to the
 465          *        public root in the first element, and the archive file path relative
 466          *        to the deleted zone root in the second element.
 467          * @return FileRepoStatus
 468          */
 469         function deleteBatch( $sourceDestPairs ) {
 470                 $status = $this->newGood();
 471                 if ( !$this->deletedDir ) {
 472                         throw new MWException( __METHOD__.': no valid deletion archive directory' );
 473                 }
 474
 475                 /**
 476                  * Validate filenames and create archive directories
 477                  */
 478                 foreach ( $sourceDestPairs as $pair ) {
 479                         list( $srcRel, $archiveRel ) = $pair;
 480                         if ( !$this->validateFilename( $srcRel ) ) {
 481                                 throw new MWException( __METHOD__.':Validation error in $srcRel' );
 482                         }
 483                         if ( !$this->validateFilename( $archiveRel ) ) {
 484                                 throw new MWException( __METHOD__.':Validation error in $archiveRel' );
 485                         }
 486                         $archivePath = "{$this->deletedDir}/$archiveRel";
 487                         $archiveDir = dirname( $archivePath );
 488                         if ( !is_dir( $archiveDir ) ) {
 489                                 if ( !wfMkdirParents( $archiveDir ) ) {
 490                                         $status->fatal( 'directorycreateerror', $archiveDir );
 491                                         continue;
 492                                 }
 493                                 $this->initDeletedDir( $archiveDir );
 494                         }
 495                         // Check if the archive directory is writable
 496                         // This doesn't appear to work on NTFS
 497                         if ( !is_writable( $archiveDir ) ) {
 498                                 $status->fatal( 'filedelete-archive-read-only', $archiveDir );
 499                         }
 500                 }
 501                 if ( !$status->ok ) {
 502                         // Abort early
 503                         return $status;
 504                 }
 505
 506                 /**
 507                  * Move the files
 508                  * We're now committed to returning an OK result, which will lead to
 509                  * the files being moved in the DB also.
 510                  */
 511                 foreach ( $sourceDestPairs as $pair ) {
 512                         list( $srcRel, $archiveRel ) = $pair;
 513                         $srcPath = "{$this->directory}/$srcRel";
 514                         $archivePath = "{$this->deletedDir}/$archiveRel";
 515                         $good = true;
 516                         if ( file_exists( $archivePath ) ) {
 517                                 # A file with this content hash is already archived
 518                                 if ( !@unlink( $srcPath ) ) {
 519                                         $status->error( 'filedeleteerror', $srcPath );
 520                                         $good = false;
 521                                 }
 522                         } else{
 523                                 if ( !@rename( $srcPath, $archivePath ) ) {
 524                                         $status->error( 'filerenameerror', $srcPath, $archivePath );
 525                                         $good = false;
 526                                 } else {
 527                                         $this->chmod( $archivePath );
 528                                 }
 529                         }
 530                         if ( $good ) {
 531                                 $status->successCount++;
 532                         } else {
 533                                 $status->failCount++;
 534                         }
 535                 }
 536                 return $status;
 537         }
 538
 539         /**
 540          * Get a relative path for a deletion archive key,
 541          * e.g. s/z/a/ for sza251lrxrc1jad41h5mgilp8nysje52.jpg
 542          */
 543         function getDeletedHashPath( $key ) {
 544                 $path = '';
 545                 for ( $i = 0; $i < $this->deletedHashLevels; $i++ ) {
 546                         $path .= $key[$i] . '/';
 547                 }
 548                 return $path;
 549         }
 550
 551         /**
 552          * Call a callback function for every file in the repository.
 553          * Uses the filesystem even in child classes.
 554          */
 555         function enumFilesInFS( $callback ) {
 556                 $numDirs = 1 << ( $this->hashLevels * 4 );
 557                 for ( $flatIndex = 0; $flatIndex < $numDirs; $flatIndex++ ) {
 558                         $hexString = sprintf( "%0{$this->hashLevels}x", $flatIndex );
 559                         $path = $this->directory;
 560                         for ( $hexPos = 0; $hexPos < $this->hashLevels; $hexPos++ ) {
 561                                 $path .= '/' . substr( $hexString, 0, $hexPos + 1 );
 562                         }
 563                         if ( !file_exists( $path ) || !is_dir( $path ) ) {
 564                                 continue;
 565                         }
 566                         $dir = opendir( $path );
 567                         while ( false !== ( $name = readdir( $dir ) ) ) {
 568                                 call_user_func( $callback, $path . '/' . $name );
 569                         }
 570                 }
 571         }
 572
 573         /**
 574          * Call a callback function for every file in the repository
 575          * May use either the database or the filesystem
 576          */
 577         function enumFiles( $callback ) {
 578                 $this->enumFilesInFS( $callback );
 579         }
 580
 581         /**
 582          * Get properties of a file with a given virtual URL
 583          * The virtual URL must refer to this repo
 584          */
 585         function getFileProps( $virtualUrl ) {
 586                 $path = $this->resolveVirtualUrl( $virtualUrl );
 587                 return File::getPropsFromPath( $path );
 588         }
 589
 590         /**
 591          * Path disclosure protection functions
 592          *
 593          * Get a callback function to use for cleaning error message parameters
 594          */
 595         function getErrorCleanupFunction() {
 596                 switch ( $this->pathDisclosureProtection ) {
 597                         case 'simple':
 598                                 $callback = array( $this, 'simpleClean' );
 599                                 break;
 600                         default:
 601                                 $callback = parent::getErrorCleanupFunction();
 602                 }
 603                 return $callback;
 604         }
 605
 606         function simpleClean( $param ) {
 607                 if ( !isset( $this->simpleCleanPairs ) ) {
 608                         global $IP;
 609                         $this->simpleCleanPairs = array(
 610                                 $this->directory => 'public',
 611                                 "{$this->directory}/temp" => 'temp',
 612                                 $IP => '$IP',
 613                                 dirname( __FILE__ ) => '$IP/extensions/WebStore',
 614                         );
 615                         if ( $this->deletedDir ) {
 616                                 $this->simpleCleanPairs[$this->deletedDir] = 'deleted';
 617                         }
 618                 }
 619                 return strtr( $param, $this->simpleCleanPairs );
 620         }
 621
 622         /**
 623          * Chmod a file, supressing the warnings.
 624          * @param $path String: the path to change
 625          */
 626         protected function chmod( $path ) {
 627                 wfSuppressWarnings();
 628                 chmod( $path, $this->fileMode );
 629                 wfRestoreWarnings();
 630         }
 631
 632 }