includes/api/ApiQueryImageInfo.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on July 6, 2007
   6  *
   7  * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@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( 'ApiQueryBase.php' );
  30 }
  31
  32 /**
  33  * A query action to get image information and upload history.
  34  *
  35  * @ingroup API
  36  */
  37 class ApiQueryImageInfo extends ApiQueryBase {
  38
  39         public function __construct( $query, $moduleName, $prefix = 'ii' ) {
  40                 // We allow a subclass to override the prefix, to create a related API module.
  41                 // Some other parts of MediaWiki construct this with a null $prefix, which used to be ignored when this only took two arguments
  42                 if ( is_null( $prefix ) ) {
  43                         $prefix = 'ii';
  44                 }
  45                 parent::__construct( $query, $moduleName, $prefix );
  46         }
  47
  48         public function execute() {
  49                 $params = $this->extractRequestParams();
  50
  51                 $prop = array_flip( $params['prop'] );
  52
  53                 $scale = $this->getScale( $params );
  54
  55                 $pageIds = $this->getPageSet()->getAllTitlesByNamespace();
  56                 if ( !empty( $pageIds[NS_FILE] ) ) {
  57                         $titles = array_keys( $pageIds[NS_FILE] );
  58                         asort( $titles ); // Ensure the order is always the same
  59
  60                         $skip = false;
  61                         if ( !is_null( $params['continue'] ) ) {
  62                                 $skip = true;
  63                                 $cont = explode( '|', $params['continue'] );
  64                                 if ( count( $cont ) != 2 ) {
  65                                         $this->dieUsage( 'Invalid continue param. You should pass the original ' .
  66                                                         'value returned by the previous query', '_badcontinue' );
  67                                 }
  68                                 $fromTitle = strval( $cont[0] );
  69                                 $fromTimestamp = $cont[1];
  70                                 // Filter out any titles before $fromTitle
  71                                 foreach ( $titles as $key => $title ) {
  72                                         if ( $title < $fromTitle ) {
  73                                                 unset( $titles[$key] );
  74                                         } else {
  75                                                 break;
  76                                         }
  77                                 }
  78                         }
  79
  80                         $result = $this->getResult();
  81                         $images = RepoGroup::singleton()->findFiles( $titles );
  82                         foreach ( $images as $img ) {
  83                                 // Skip redirects
  84                                 if ( $img->getOriginalTitle()->isRedirect() ) {
  85                                         continue;
  86                                 }
  87
  88                                 $start = $skip ? $fromTimestamp : $params['start'];
  89                                 $pageId = $pageIds[NS_IMAGE][ $img->getOriginalTitle()->getDBkey() ];
  90
  91                                 $fit = $result->addValue(
  92                                         array( 'query', 'pages', intval( $pageId ) ),
  93                                         'imagerepository', $img->getRepoName()
  94                                 );
  95                                 if ( !$fit ) {
  96                                         if ( count( $pageIds[NS_IMAGE] ) == 1 ) {
  97                                                 // The user is screwed. imageinfo can't be solely
  98                                                 // responsible for exceeding the limit in this case,
  99                                                 // so set a query-continue that just returns the same
 100                                                 // thing again. When the violating queries have been
 101                                                 // out-continued, the result will get through
 102                                                 $this->setContinueEnumParameter( 'start',
 103                                                         wfTimestamp( TS_ISO_8601, $img->getTimestamp() ) );
 104                                         } else {
 105                                                 $this->setContinueEnumParameter( 'continue',
 106                                                         $this->getContinueStr( $img ) );
 107                                         }
 108                                         break;
 109                                 }
 110
 111                                 // Check if we can make the requested thumbnail, and get transform parameters.
 112                                 $finalThumbParams = $this->mergeThumbParams( $img, $scale, $params['urlparam'] );
 113
 114                                 // Get information about the current version first
 115                                 // Check that the current version is within the start-end boundaries
 116                                 $gotOne = false;
 117                                 if (
 118                                         ( is_null( $start ) || $img->getTimestamp() <= $start ) &&
 119                                         ( is_null( $params['end'] ) || $img->getTimestamp() >= $params['end'] )
 120                                 ) {
 121                                         $gotOne = true;
 122
 123                                         $fit = $this->addPageSubItem( $pageId,
 124                                                 self::getInfo( $img, $prop, $result,
 125                                                         $finalThumbParams, $params['metadataversion'] ) );
 126                                         if ( !$fit ) {
 127                                                 if ( count( $pageIds[NS_IMAGE] ) == 1 ) {
 128                                                         // See the 'the user is screwed' comment above
 129                                                         $this->setContinueEnumParameter( 'start',
 130                                                                 wfTimestamp( TS_ISO_8601, $img->getTimestamp() ) );
 131                                                 } else {
 132                                                         $this->setContinueEnumParameter( 'continue',
 133                                                                 $this->getContinueStr( $img ) );
 134                                                 }
 135                                                 break;
 136                                         }
 137                                 }
 138
 139                                 // Now get the old revisions
 140                                 // Get one more to facilitate query-continue functionality
 141                                 $count = ( $gotOne ? 1 : 0 );
 142                                 $oldies = $img->getHistory( $params['limit'] - $count + 1, $start, $params['end'] );
 143                                 foreach ( $oldies as $oldie ) {
 144                                         if ( ++$count > $params['limit'] ) {
 145                                                 // We've reached the extra one which shows that there are additional pages to be had. Stop here...
 146                                                 // Only set a query-continue if there was only one title
 147                                                 if ( count( $pageIds[NS_FILE] ) == 1 ) {
 148                                                         $this->setContinueEnumParameter( 'start',
 149                                                                 wfTimestamp( TS_ISO_8601, $oldie->getTimestamp() ) );
 150                                                 }
 151                                                 break;
 152                                         }
 153                                         $fit = $this->addPageSubItem( $pageId,
 154                                                 self::getInfo( $oldie, $prop, $result,
 155                                                         $finalThumbParams, $params['metadataversion'] ) );
 156                                         if ( !$fit ) {
 157                                                 if ( count( $pageIds[NS_IMAGE] ) == 1 ) {
 158                                                         $this->setContinueEnumParameter( 'start',
 159                                                                 wfTimestamp( TS_ISO_8601, $oldie->getTimestamp() ) );
 160                                                 } else {
 161                                                         $this->setContinueEnumParameter( 'continue',
 162                                                                 $this->getContinueStr( $oldie ) );
 163                                                 }
 164                                                 break;
 165                                         }
 166                                 }
 167                                 if ( !$fit ) {
 168                                         break;
 169                                 }
 170                                 $skip = false;
 171                         }
 172
 173                         $data = $this->getResultData();
 174                         foreach ( $data['query']['pages'] as $pageid => $arr ) {
 175                                 if ( !isset( $arr['imagerepository'] ) ) {
 176                                         $result->addValue(
 177                                                 array( 'query', 'pages', $pageid ),
 178                                                 'imagerepository', ''
 179                                         );
 180                                 }
 181                                 // The above can't fail because it doesn't increase the result size
 182                         }
 183                 }
 184         }
 185
 186         /**
 187          * From parameters, construct a 'scale' array
 188          * @param $params Array: Parameters passed to api.
 189          * @return Array or Null: key-val array of 'width' and 'height', or null
 190          */
 191         public function getScale( $params ) {
 192                 $p = $this->getModulePrefix();
 193
 194                 // Height and width.
 195                 if ( $params['urlheight'] != -1 && $params['urlwidth'] == -1 ) {
 196                         $this->dieUsage( "{$p}urlheight cannot be used without {$p}urlwidth", "{$p}urlwidth" );
 197                 }
 198
 199                 if ( $params['urlwidth'] != -1 ) {
 200                         $scale = array();
 201                         $scale['width'] = $params['urlwidth'];
 202                         $scale['height'] = $params['urlheight'];
 203                 } else {
 204                         $scale = null;
 205                         if ( $params['urlparam'] ) {
 206                                 $this->dieUsage( "{$p}urlparam requires {$p}urlwidth", "urlparam_no_width" );
 207                         }
 208                         return $scale;
 209                 }
 210
 211                 return $scale;
 212         }
 213
 214         /** Validate and merge scale parameters with handler thumb parameters, give error if invalid.
 215          *
 216          * We do this later than getScale, since we need the image
 217          * to know which handler, since handlers can make their own parameters.
 218          * @param File $image Image that params are for.
 219          * @param Array $thumbParams thumbnail parameters from getScale
 220          * @param String $otherParams of otherParams (iiurlparam).
 221          * @return Array of parameters for transform.
 222          */
 223         protected function mergeThumbParams ( $image, $thumbParams, $otherParams ) {
 224                 if ( !$otherParams ) {
 225                         return $thumbParams;
 226                 }
 227                 $p = $this->getModulePrefix();
 228
 229                 $h = $image->getHandler();
 230                 if ( !$h ) {
 231                         $this->setWarning( 'Could not create thumbnail because ' .
 232                                 $image->getName() . ' does not have an associated image handler' );
 233                         return $thumbParams;
 234                 }
 235
 236                 $paramList = $h->parseParamString( $otherParams );
 237                 if ( !$paramList ) {
 238                         // Just set a warning (instead of dieUsage), as in many cases
 239                         // we could still render the image using width and height parameters,
 240                         // and this type of thing could happen between different versions of
 241                         // handlers.
 242                         $this->setWarning( "Could not parse {$p}urlparam for " . $image->getName()
 243                                 . '. Using only width and height' );
 244                         return $thumbParams;
 245                 }
 246
 247                 if ( isset( $paramList['width'] ) ) {
 248                         if ( intval( $paramList['width'] ) != intval( $thumbParams['width'] ) ) {
 249                                 $this->dieUsage( "{$p}urlparam had width of {$paramList['width']} but "
 250                                         . "{$p}urlwidth was {$thumbParams['width']}", "urlparam_urlwidth_mismatch" );
 251                         }
 252                 }
 253
 254                 foreach ( $paramList as $name => $value ) {
 255                         if ( !$h->validateParam( $name, $value ) ) {
 256                                 $this->dieUsage( "Invalid value for {$p}urlparam ($name=$value)", "urlparam" );
 257                         }
 258                 }
 259
 260                 return $thumbParams + $paramList;
 261         }
 262
 263         /**
 264          * Get result information for an image revision
 265          *
 266          * @param $file File object
 267          * @param $prop Array of properties to get (in the keys)
 268          * @param $result ApiResult object
 269          * @param $thumbParams Array containing 'width' and 'height' items, or null
 270          * @param $version string Version of image metadata (for things like jpeg which have different versions).
 271          * @return Array: result array
 272          */
 273         static function getInfo( $file, $prop, $result, $thumbParams = null, $version = 'latest' ) {
 274                 $vals = array();
 275                 // Timestamp is shown even if the file is revdelete'd in interface
 276                 // so do same here.
 277                 if ( isset( $prop['timestamp'] ) ) {
 278                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $file->getTimestamp() );
 279                 }
 280
 281                 $user = isset( $prop['user'] );
 282                 $userid = isset( $prop['userid'] );
 283
 284                 if ( $user || $userid ) {
 285                         if ( $file->isDeleted( File::DELETED_USER ) ) {
 286                                 $vals['userhidden'] = '';
 287                         } else {
 288                                 if ( $user ) {
 289                                         $vals['user'] = $file->getUser();
 290                                 }
 291                                 if ( $userid ) {
 292                                         $vals['userid'] = $file->getUser( 'id' );
 293                                 }
 294                                 if ( !$file->getUser( 'id' ) ) {
 295                                         $vals['anon'] = '';
 296                                 }
 297                         }
 298                 }
 299
 300                 // This is shown even if the file is revdelete'd in interface
 301                 // so do same here.
 302                 if ( isset( $prop['size'] ) || isset( $prop['dimensions'] ) ) {
 303                         $vals['size'] = intval( $file->getSize() );
 304                         $vals['width'] = intval( $file->getWidth() );
 305                         $vals['height'] = intval( $file->getHeight() );
 306
 307                         $pageCount = $file->pageCount();
 308                         if ( $pageCount !== false ) {
 309                                 $vals['pagecount'] = $pageCount;
 310                         }
 311                 }
 312
 313                 $pcomment = isset( $prop['parsedcomment'] );
 314                 $comment = isset( $prop['comment'] );
 315
 316                 if ( $pcomment || $comment ) {
 317                         if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
 318                                 $vals['commenthidden'] = '';
 319                         } else {
 320                                 if ( $pcomment ) {
 321                                         $vals['parsedcomment'] = Linker::formatComment(
 322                                                 $file->getDescription(), $file->getTitle() );
 323                                 }
 324                                 if ( $comment ) {
 325                                         $vals['comment'] = $file->getDescription();
 326                                 }
 327                         }
 328                 }
 329
 330                 $url = isset( $prop['url'] );
 331                 $sha1 = isset( $prop['sha1'] );
 332                 $meta = isset( $prop['metadata'] );
 333                 $mime = isset( $prop['mime'] );
 334                 $mediatype = isset( $prop['mediatype'] );
 335                 $archive = isset( $prop['archivename'] );
 336                 $bitdepth = isset( $prop['bitdepth'] );
 337
 338                 if ( ( $url || $sha1 || $meta || $mime || $mediatype || $archive || $bitdepth )
 339                                 && $file->isDeleted( File::DELETED_FILE ) ) {
 340                         $vals['filehidden'] = '';
 341
 342                         //Early return, tidier than indenting all following things one level
 343                         return $vals;
 344                 }
 345
 346                 if ( $url ) {
 347                         if ( !is_null( $thumbParams ) ) {
 348                                 $mto = $file->transform( $thumbParams );
 349                                 if ( $mto && !$mto->isError() ) {
 350                                         $vals['thumburl'] = wfExpandUrl( $mto->getUrl(), PROTO_CURRENT );
 351
 352                                         // bug 23834 - If the URL's are the same, we haven't resized it, so shouldn't give the wanted
 353                                         // thumbnail sizes for the thumbnail actual size
 354                                         if ( $mto->getUrl() !== $file->getUrl() ) {
 355                                                 $vals['thumbwidth'] = intval( $mto->getWidth() );
 356                                                 $vals['thumbheight'] = intval( $mto->getHeight() );
 357                                         } else {
 358                                                 $vals['thumbwidth'] = intval( $file->getWidth() );
 359                                                 $vals['thumbheight'] = intval( $file->getHeight() );
 360                                         }
 361
 362                                         if ( isset( $prop['thumbmime'] ) && $file->getHandler() ) {
 363                                                 list( $ext, $mime ) = $file->getHandler()->getThumbType(
 364                                                         substr( $mto->getPath(), strrpos( $mto->getPath(), '.' ) + 1 ),
 365                                                         $file->getMimeType(), $thumbParams );
 366                                                 $vals['thumbmime'] = $mime;
 367                                         }
 368                                 } elseif ( $mto && $mto->isError() ) {
 369                                         $vals['thumberror'] = $mto->toText();
 370                                 }
 371                         }
 372                         $vals['url'] = wfExpandUrl( $file->getFullURL(), PROTO_CURRENT );
 373                         $vals['descriptionurl'] = wfExpandUrl( $file->getDescriptionUrl(), PROTO_CURRENT );
 374                 }
 375
 376                 if ( $sha1 ) {
 377                         $vals['sha1'] = wfBaseConvert( $file->getSha1(), 36, 16, 40 );
 378                 }
 379
 380                 if ( $meta ) {
 381                         $metadata = unserialize( $file->getMetadata() );
 382                         if ( $version !== 'latest' ) {
 383                                 $metadata = $file->convertMetadataVersion( $metadata, $version );
 384                         }
 385                         $vals['metadata'] = $metadata ? self::processMetaData( $metadata, $result ) : null;
 386                 }
 387
 388                 if ( $mime ) {
 389                         $vals['mime'] = $file->getMimeType();
 390                 }
 391
 392                 if ( $mediatype ) {
 393                         $vals['mediatype'] = $file->getMediaType();
 394                 }
 395
 396                 if ( $archive && $file->isOld() ) {
 397                         $vals['archivename'] = $file->getArchiveName();
 398                 }
 399
 400                 if ( $bitdepth ) {
 401                         $vals['bitdepth'] = $file->getBitDepth();
 402                 }
 403
 404                 return $vals;
 405         }
 406
 407         /**
 408          *
 409          * @param $metadata Array
 410          * @param $result ApiResult
 411          * @return Array
 412          */
 413         public static function processMetaData( $metadata, $result ) {
 414                 $retval = array();
 415                 if ( is_array( $metadata ) ) {
 416                         foreach ( $metadata as $key => $value ) {
 417                                 $r = array( 'name' => $key );
 418                                 if ( is_array( $value ) ) {
 419                                         $r['value'] = self::processMetaData( $value, $result );
 420                                 } else {
 421                                         $r['value'] = $value;
 422                                 }
 423                                 $retval[] = $r;
 424                         }
 425                 }
 426                 $result->setIndexedTagName( $retval, 'metadata' );
 427                 return $retval;
 428         }
 429
 430         public function getCacheMode( $params ) {
 431                 return 'public';
 432         }
 433
 434         /**
 435          * @param $img File
 436          * @return string
 437          */
 438         private function getContinueStr( $img ) {
 439                 return $img->getOriginalTitle()->getText() .
 440                         '|' .  $img->getTimestamp();
 441         }
 442
 443         public function getAllowedParams() {
 444                 return array(
 445                         'prop' => array(
 446                                 ApiBase::PARAM_ISMULTI => true,
 447                                 ApiBase::PARAM_DFLT => 'timestamp|user',
 448                                 ApiBase::PARAM_TYPE => self::getPropertyNames()
 449                         ),
 450                         'limit' => array(
 451                                 ApiBase::PARAM_TYPE => 'limit',
 452                                 ApiBase::PARAM_DFLT => 1,
 453                                 ApiBase::PARAM_MIN => 1,
 454                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 455                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 456                         ),
 457                         'start' => array(
 458                                 ApiBase::PARAM_TYPE => 'timestamp'
 459                         ),
 460                         'end' => array(
 461                                 ApiBase::PARAM_TYPE => 'timestamp'
 462                         ),
 463                         'urlwidth' => array(
 464                                 ApiBase::PARAM_TYPE => 'integer',
 465                                 ApiBase::PARAM_DFLT => -1
 466                         ),
 467                         'urlheight' => array(
 468                                 ApiBase::PARAM_TYPE => 'integer',
 469                                 ApiBase::PARAM_DFLT => -1
 470                         ),
 471                         'metadataversion' => array(
 472                                 ApiBase::PARAM_TYPE => 'string',
 473                                 ApiBase::PARAM_DFLT => '1',
 474                         ),
 475                         'urlparam' => array(
 476                                 ApiBase::PARAM_DFLT => '',
 477                                 ApiBase::PARAM_TYPE => 'string',
 478                         ),
 479                         'continue' => null,
 480                 );
 481         }
 482
 483         /**
 484          * Returns all possible parameters to iiprop
 485          *
 486          * @param array $filter List of properties to filter out
 487          *
 488          * @return Array
 489          */
 490         public static function getPropertyNames( $filter = array() ) {
 491                 return array_diff( array_keys( self::getProperties() ), $filter );
 492         }
 493
 494         /**
 495          * Returns array key value pairs of properties and their descriptions
 496          *
 497          * @return array
 498          */
 499         private static function getProperties() {
 500                 return array(
 501                         'timestamp' =>      ' timestamp     - Adds timestamp for the uploaded version',
 502                         'user' =>           ' user          - Adds the user who uploaded the image version',
 503                         'userid' =>         ' userid        - Add the user ID that uploaded the image version',
 504                         'comment' =>        ' comment       - Comment on the version',
 505                         'parsedcomment' =>  ' parsedcomment - Parse the comment on the version',
 506                         'url' =>            ' url           - Gives URL to the image and the description page',
 507                         'size' =>           ' size          - Adds the size of the image in bytes and the height, width and page count (if applicable)',
 508                         'dimensions' =>     ' dimensions    - Alias for size', // For backwards compatibility with Allimages
 509                         'sha1' =>           ' sha1          - Adds SHA-1 hash for the image',
 510                         'mime' =>           ' mime          - Adds MIME type of the image',
 511                         'thumbmime' =>      ' thumbmime     - Adds MIME type of the image thumbnail (requires url)',
 512                         'mediatype' =>      ' mediatype     - Adds the media type of the image',
 513                         'metadata' =>       ' metadata      - Lists EXIF metadata for the version of the image',
 514                         'archivename' =>    ' archivename   - Adds the file name of the archive version for non-latest versions',
 515                         'bitdepth' =>       ' bitdepth      - Adds the bit depth of the version',
 516                 );
 517         }
 518
 519         /**
 520          * Returns the descriptions for the properties provided by getPropertyNames()
 521          *
 522          * @param array $filter List of properties to filter out
 523          *
 524          * @return array
 525          */
 526         public static function getPropertyDescriptions( $filter = array() ) {
 527                 return array_merge(
 528                         array( 'What image information to get:' ),
 529                         array_values( array_diff_key( self::getProperties(), array_flip( $filter ) ) )
 530                 );
 531         }
 532
 533         /**
 534          * Return the API documentation for the parameters.
 535          * @return Array parameter documentation.
 536          */
 537         public function getParamDescription() {
 538                 $p = $this->getModulePrefix();
 539                 return array(
 540                         'prop' => self::getPropertyDescriptions(),
 541                         'urlwidth' => array( "If {$p}prop=url is set, a URL to an image scaled to this width will be returned.",
 542                                             'Only the current version of the image can be scaled' ),
 543                         'urlheight' => "Similar to {$p}urlwidth. Cannot be used without {$p}urlwidth",
 544                         'urlparam' => array( "A handler specific parameter string. For example, pdf's ",
 545                                 "might use 'page15-100px'. {$p}urlwidth must be used and be consistent with {$p}urlparam" ),
 546                         'limit' => 'How many image revisions to return',
 547                         'start' => 'Timestamp to start listing from',
 548                         'end' => 'Timestamp to stop listing at',
 549                         'metadataversion' => array( "Version of metadata to use. if 'latest' is specified, use latest version.",
 550                                                 "Defaults to '1' for backwards compatibility" ),
 551                         'continue' => 'If the query response includes a continue value, use it here to get another page of results'
 552                 );
 553         }
 554
 555         public function getDescription() {
 556                 return 'Returns image information and upload history';
 557         }
 558
 559         public function getPossibleErrors() {
 560                 $p = $this->getModulePrefix();
 561                 return array_merge( parent::getPossibleErrors(), array(
 562                         array( 'code' => "{$p}urlwidth", 'info' => "{$p}urlheight cannot be used without {$p}urlwidth" ),
 563                         array( 'code' => 'urlparam', 'info' => "Invalid value for {$p}urlparam" ),
 564                         array( 'code' => 'urlparam_no_width', 'info' => "{$p}urlparam requires {$p}urlwidth" ),
 565                         array( 'code' => 'urlparam_urlwidth_mismatch', 'info' => "The width set in {$p}urlparm doesnt't " .
 566                                 "match the one in {$p}urlwidth" ),
 567                 ) );
 568         }
 569
 570         public function getExamples() {
 571                 return array(
 572                         'api.php?action=query&titles=File:Albert%20Einstein%20Head.jpg&prop=imageinfo',
 573                         'api.php?action=query&titles=File:Test.jpg&prop=imageinfo&iilimit=50&iiend=20071231235959&iiprop=timestamp|user|url',
 574                 );
 575         }
 576
 577         public function getHelpUrls() {
 578                 return 'http://www.mediawiki.org/wiki/API:Properties#imageinfo_.2F_ii';
 579         }
 580
 581         public function getVersion() {
 582                 return __CLASS__ . ': $Id$';
 583         }
 584 }