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 /**
  28  * A query action to get image information and upload history.
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQueryImageInfo extends ApiQueryBase {
  33
  34         public function __construct( $query, $moduleName, $prefix = 'ii' ) {
  35                 // We allow a subclass to override the prefix, to create a related API module.
  36                 // Some other parts of MediaWiki construct this with a null $prefix, which used to be ignored when this only took two arguments
  37                 if ( is_null( $prefix ) ) {
  38                         $prefix = 'ii';
  39                 }
  40                 parent::__construct( $query, $moduleName, $prefix );
  41         }
  42
  43         public function execute() {
  44                 $params = $this->extractRequestParams();
  45
  46                 $prop = array_flip( $params['prop'] );
  47
  48                 $scale = $this->getScale( $params );
  49
  50                 $pageIds = $this->getPageSet()->getAllTitlesByNamespace();
  51                 if ( !empty( $pageIds[NS_FILE] ) ) {
  52                         $titles = array_keys( $pageIds[NS_FILE] );
  53                         asort( $titles ); // Ensure the order is always the same
  54
  55                         $skip = false;
  56                         if ( !is_null( $params['continue'] ) ) {
  57                                 $skip = true;
  58                                 $cont = explode( '|', $params['continue'] );
  59                                 if ( count( $cont ) != 2 ) {
  60                                         $this->dieUsage( 'Invalid continue param. You should pass the original ' .
  61                                                         'value returned by the previous query', '_badcontinue' );
  62                                 }
  63                                 $fromTitle = strval( $cont[0] );
  64                                 $fromTimestamp = $cont[1];
  65                                 // Filter out any titles before $fromTitle
  66                                 foreach ( $titles as $key => $title ) {
  67                                         if ( $title < $fromTitle ) {
  68                                                 unset( $titles[$key] );
  69                                         } else {
  70                                                 break;
  71                                         }
  72                                 }
  73                         }
  74
  75                         $result = $this->getResult();
  76                         $images = RepoGroup::singleton()->findFiles( $titles );
  77                         foreach ( $images as $img ) {
  78                                 // Skip redirects
  79                                 if ( $img->getOriginalTitle()->isRedirect() ) {
  80                                         continue;
  81                                 }
  82
  83                                 $start = $skip ? $fromTimestamp : $params['start'];
  84                                 $pageId = $pageIds[NS_FILE][ $img->getOriginalTitle()->getDBkey() ];
  85
  86                                 $fit = $result->addValue(
  87                                         array( 'query', 'pages', intval( $pageId ) ),
  88                                         'imagerepository', $img->getRepoName()
  89                                 );
  90                                 if ( !$fit ) {
  91                                         if ( count( $pageIds[NS_FILE] ) == 1 ) {
  92                                                 // The user is screwed. imageinfo can't be solely
  93                                                 // responsible for exceeding the limit in this case,
  94                                                 // so set a query-continue that just returns the same
  95                                                 // thing again. When the violating queries have been
  96                                                 // out-continued, the result will get through
  97                                                 $this->setContinueEnumParameter( 'start',
  98                                                         wfTimestamp( TS_ISO_8601, $img->getTimestamp() ) );
  99                                         } else {
 100                                                 $this->setContinueEnumParameter( 'continue',
 101                                                         $this->getContinueStr( $img ) );
 102                                         }
 103                                         break;
 104                                 }
 105
 106                                 // Check if we can make the requested thumbnail, and get transform parameters.
 107                                 $finalThumbParams = $this->mergeThumbParams( $img, $scale, $params['urlparam'] );
 108
 109                                 // Get information about the current version first
 110                                 // Check that the current version is within the start-end boundaries
 111                                 $gotOne = false;
 112                                 if (
 113                                         ( is_null( $start ) || $img->getTimestamp() <= $start ) &&
 114                                         ( is_null( $params['end'] ) || $img->getTimestamp() >= $params['end'] )
 115                                 ) {
 116                                         $gotOne = true;
 117
 118                                         $fit = $this->addPageSubItem( $pageId,
 119                                                 self::getInfo( $img, $prop, $result,
 120                                                         $finalThumbParams, $params['metadataversion'] ) );
 121                                         if ( !$fit ) {
 122                                                 if ( count( $pageIds[NS_FILE] ) == 1 ) {
 123                                                         // See the 'the user is screwed' comment above
 124                                                         $this->setContinueEnumParameter( 'start',
 125                                                                 wfTimestamp( TS_ISO_8601, $img->getTimestamp() ) );
 126                                                 } else {
 127                                                         $this->setContinueEnumParameter( 'continue',
 128                                                                 $this->getContinueStr( $img ) );
 129                                                 }
 130                                                 break;
 131                                         }
 132                                 }
 133
 134                                 // Now get the old revisions
 135                                 // Get one more to facilitate query-continue functionality
 136                                 $count = ( $gotOne ? 1 : 0 );
 137                                 $oldies = $img->getHistory( $params['limit'] - $count + 1, $start, $params['end'] );
 138                                 foreach ( $oldies as $oldie ) {
 139                                         if ( ++$count > $params['limit'] ) {
 140                                                 // We've reached the extra one which shows that there are additional pages to be had. Stop here...
 141                                                 // Only set a query-continue if there was only one title
 142                                                 if ( count( $pageIds[NS_FILE] ) == 1 ) {
 143                                                         $this->setContinueEnumParameter( 'start',
 144                                                                 wfTimestamp( TS_ISO_8601, $oldie->getTimestamp() ) );
 145                                                 }
 146                                                 break;
 147                                         }
 148                                         $fit = $this->addPageSubItem( $pageId,
 149                                                 self::getInfo( $oldie, $prop, $result,
 150                                                         $finalThumbParams, $params['metadataversion'] ) );
 151                                         if ( !$fit ) {
 152                                                 if ( count( $pageIds[NS_FILE] ) == 1 ) {
 153                                                         $this->setContinueEnumParameter( 'start',
 154                                                                 wfTimestamp( TS_ISO_8601, $oldie->getTimestamp() ) );
 155                                                 } else {
 156                                                         $this->setContinueEnumParameter( 'continue',
 157                                                                 $this->getContinueStr( $oldie ) );
 158                                                 }
 159                                                 break;
 160                                         }
 161                                 }
 162                                 if ( !$fit ) {
 163                                         break;
 164                                 }
 165                                 $skip = false;
 166                         }
 167
 168                         $data = $this->getResultData();
 169                         foreach ( $data['query']['pages'] as $pageid => $arr ) {
 170                                 if ( !isset( $arr['imagerepository'] ) ) {
 171                                         $result->addValue(
 172                                                 array( 'query', 'pages', $pageid ),
 173                                                 'imagerepository', ''
 174                                         );
 175                                 }
 176                                 // The above can't fail because it doesn't increase the result size
 177                         }
 178                 }
 179         }
 180
 181         /**
 182          * From parameters, construct a 'scale' array
 183          * @param $params Array: Parameters passed to api.
 184          * @return Array or Null: key-val array of 'width' and 'height', or null
 185          */
 186         public function getScale( $params ) {
 187                 $p = $this->getModulePrefix();
 188
 189                 // Height and width.
 190                 if ( $params['urlheight'] != -1 && $params['urlwidth'] == -1 ) {
 191                         $this->dieUsage( "{$p}urlheight cannot be used without {$p}urlwidth", "{$p}urlwidth" );
 192                 }
 193
 194                 if ( $params['urlwidth'] != -1 ) {
 195                         $scale = array();
 196                         $scale['width'] = $params['urlwidth'];
 197                         $scale['height'] = $params['urlheight'];
 198                 } else {
 199                         $scale = null;
 200                         if ( $params['urlparam'] ) {
 201                                 $this->dieUsage( "{$p}urlparam requires {$p}urlwidth", "urlparam_no_width" );
 202                         }
 203                         return $scale;
 204                 }
 205
 206                 return $scale;
 207         }
 208
 209         /** Validate and merge scale parameters with handler thumb parameters, give error if invalid.
 210          *
 211          * We do this later than getScale, since we need the image
 212          * to know which handler, since handlers can make their own parameters.
 213          * @param File $image Image that params are for.
 214          * @param Array $thumbParams thumbnail parameters from getScale
 215          * @param String $otherParams of otherParams (iiurlparam).
 216          * @return Array of parameters for transform.
 217          */
 218         protected function mergeThumbParams ( $image, $thumbParams, $otherParams ) {
 219                 if ( !$otherParams ) {
 220                         return $thumbParams;
 221                 }
 222                 $p = $this->getModulePrefix();
 223
 224                 $h = $image->getHandler();
 225                 if ( !$h ) {
 226                         $this->setWarning( 'Could not create thumbnail because ' .
 227                                 $image->getName() . ' does not have an associated image handler' );
 228                         return $thumbParams;
 229                 }
 230
 231                 $paramList = $h->parseParamString( $otherParams );
 232                 if ( !$paramList ) {
 233                         // Just set a warning (instead of dieUsage), as in many cases
 234                         // we could still render the image using width and height parameters,
 235                         // and this type of thing could happen between different versions of
 236                         // handlers.
 237                         $this->setWarning( "Could not parse {$p}urlparam for " . $image->getName()
 238                                 . '. Using only width and height' );
 239                         return $thumbParams;
 240                 }
 241
 242                 if ( isset( $paramList['width'] ) ) {
 243                         if ( intval( $paramList['width'] ) != intval( $thumbParams['width'] ) ) {
 244                                 $this->dieUsage( "{$p}urlparam had width of {$paramList['width']} but "
 245                                         . "{$p}urlwidth was {$thumbParams['width']}", "urlparam_urlwidth_mismatch" );
 246                         }
 247                 }
 248
 249                 foreach ( $paramList as $name => $value ) {
 250                         if ( !$h->validateParam( $name, $value ) ) {
 251                                 $this->dieUsage( "Invalid value for {$p}urlparam ($name=$value)", "urlparam" );
 252                         }
 253                 }
 254
 255                 return $thumbParams + $paramList;
 256         }
 257
 258         /**
 259          * Get result information for an image revision
 260          *
 261          * @param $file File object
 262          * @param $prop Array of properties to get (in the keys)
 263          * @param $result ApiResult object
 264          * @param $thumbParams Array containing 'width' and 'height' items, or null
 265          * @param $version string Version of image metadata (for things like jpeg which have different versions).
 266          * @return Array: result array
 267          */
 268         static function getInfo( $file, $prop, $result, $thumbParams = null, $version = 'latest' ) {
 269                 $vals = array();
 270                 // Timestamp is shown even if the file is revdelete'd in interface
 271                 // so do same here.
 272                 if ( isset( $prop['timestamp'] ) ) {
 273                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $file->getTimestamp() );
 274                 }
 275
 276                 $user = isset( $prop['user'] );
 277                 $userid = isset( $prop['userid'] );
 278
 279                 if ( $user || $userid ) {
 280                         if ( $file->isDeleted( File::DELETED_USER ) ) {
 281                                 $vals['userhidden'] = '';
 282                         } else {
 283                                 if ( $user ) {
 284                                         $vals['user'] = $file->getUser();
 285                                 }
 286                                 if ( $userid ) {
 287                                         $vals['userid'] = $file->getUser( 'id' );
 288                                 }
 289                                 if ( !$file->getUser( 'id' ) ) {
 290                                         $vals['anon'] = '';
 291                                 }
 292                         }
 293                 }
 294
 295                 // This is shown even if the file is revdelete'd in interface
 296                 // so do same here.
 297                 if ( isset( $prop['size'] ) || isset( $prop['dimensions'] ) ) {
 298                         $vals['size'] = intval( $file->getSize() );
 299                         $vals['width'] = intval( $file->getWidth() );
 300                         $vals['height'] = intval( $file->getHeight() );
 301
 302                         $pageCount = $file->pageCount();
 303                         if ( $pageCount !== false ) {
 304                                 $vals['pagecount'] = $pageCount;
 305                         }
 306                 }
 307
 308                 $pcomment = isset( $prop['parsedcomment'] );
 309                 $comment = isset( $prop['comment'] );
 310
 311                 if ( $pcomment || $comment ) {
 312                         if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
 313                                 $vals['commenthidden'] = '';
 314                         } else {
 315                                 if ( $pcomment ) {
 316                                         $vals['parsedcomment'] = Linker::formatComment(
 317                                                 $file->getDescription(), $file->getTitle() );
 318                                 }
 319                                 if ( $comment ) {
 320                                         $vals['comment'] = $file->getDescription();
 321                                 }
 322                         }
 323                 }
 324
 325                 $url = isset( $prop['url'] );
 326                 $sha1 = isset( $prop['sha1'] );
 327                 $meta = isset( $prop['metadata'] );
 328                 $mime = isset( $prop['mime'] );
 329                 $mediatype = isset( $prop['mediatype'] );
 330                 $archive = isset( $prop['archivename'] );
 331                 $bitdepth = isset( $prop['bitdepth'] );
 332
 333                 if ( ( $url || $sha1 || $meta || $mime || $mediatype || $archive || $bitdepth )
 334                                 && $file->isDeleted( File::DELETED_FILE ) ) {
 335                         $vals['filehidden'] = '';
 336
 337                         //Early return, tidier than indenting all following things one level
 338                         return $vals;
 339                 }
 340
 341                 if ( $url ) {
 342                         if ( !is_null( $thumbParams ) ) {
 343                                 $mto = $file->transform( $thumbParams );
 344                                 if ( $mto && !$mto->isError() ) {
 345                                         $vals['thumburl'] = wfExpandUrl( $mto->getUrl(), PROTO_CURRENT );
 346
 347                                         // bug 23834 - If the URL's are the same, we haven't resized it, so shouldn't give the wanted
 348                                         // thumbnail sizes for the thumbnail actual size
 349                                         if ( $mto->getUrl() !== $file->getUrl() ) {
 350                                                 $vals['thumbwidth'] = intval( $mto->getWidth() );
 351                                                 $vals['thumbheight'] = intval( $mto->getHeight() );
 352                                         } else {
 353                                                 $vals['thumbwidth'] = intval( $file->getWidth() );
 354                                                 $vals['thumbheight'] = intval( $file->getHeight() );
 355                                         }
 356
 357                                         if ( isset( $prop['thumbmime'] ) && $file->getHandler() ) {
 358                                                 list( $ext, $mime ) = $file->getHandler()->getThumbType(
 359                                                         substr( $mto->getPath(), strrpos( $mto->getPath(), '.' ) + 1 ),
 360                                                         $file->getMimeType(), $thumbParams );
 361                                                 $vals['thumbmime'] = $mime;
 362                                         }
 363                                 } elseif ( $mto && $mto->isError() ) {
 364                                         $vals['thumberror'] = $mto->toText();
 365                                 }
 366                         }
 367                         $vals['url'] = wfExpandUrl( $file->getFullURL(), PROTO_CURRENT );
 368                         $vals['descriptionurl'] = wfExpandUrl( $file->getDescriptionUrl(), PROTO_CURRENT );
 369                 }
 370
 371                 if ( $sha1 ) {
 372                         $vals['sha1'] = wfBaseConvert( $file->getSha1(), 36, 16, 40 );
 373                 }
 374
 375                 if ( $meta ) {
 376                         $metadata = unserialize( $file->getMetadata() );
 377                         if ( $version !== 'latest' ) {
 378                                 $metadata = $file->convertMetadataVersion( $metadata, $version );
 379                         }
 380                         $vals['metadata'] = $metadata ? self::processMetaData( $metadata, $result ) : null;
 381                 }
 382
 383                 if ( $mime ) {
 384                         $vals['mime'] = $file->getMimeType();
 385                 }
 386
 387                 if ( $mediatype ) {
 388                         $vals['mediatype'] = $file->getMediaType();
 389                 }
 390
 391                 if ( $archive && $file->isOld() ) {
 392                         $vals['archivename'] = $file->getArchiveName();
 393                 }
 394
 395                 if ( $bitdepth ) {
 396                         $vals['bitdepth'] = $file->getBitDepth();
 397                 }
 398
 399                 return $vals;
 400         }
 401
 402         /**
 403          *
 404          * @param $metadata Array
 405          * @param $result ApiResult
 406          * @return Array
 407          */
 408         public static function processMetaData( $metadata, $result ) {
 409                 $retval = array();
 410                 if ( is_array( $metadata ) ) {
 411                         foreach ( $metadata as $key => $value ) {
 412                                 $r = array( 'name' => $key );
 413                                 if ( is_array( $value ) ) {
 414                                         $r['value'] = self::processMetaData( $value, $result );
 415                                 } else {
 416                                         $r['value'] = $value;
 417                                 }
 418                                 $retval[] = $r;
 419                         }
 420                 }
 421                 $result->setIndexedTagName( $retval, 'metadata' );
 422                 return $retval;
 423         }
 424
 425         public function getCacheMode( $params ) {
 426                 return 'public';
 427         }
 428
 429         /**
 430          * @param $img File
 431          * @return string
 432          */
 433         protected function getContinueStr( $img ) {
 434                 return $img->getOriginalTitle()->getText() .
 435                         '|' .  $img->getTimestamp();
 436         }
 437
 438         public function getAllowedParams() {
 439                 return array(
 440                         'prop' => array(
 441                                 ApiBase::PARAM_ISMULTI => true,
 442                                 ApiBase::PARAM_DFLT => 'timestamp|user',
 443                                 ApiBase::PARAM_TYPE => self::getPropertyNames()
 444                         ),
 445                         'limit' => array(
 446                                 ApiBase::PARAM_TYPE => 'limit',
 447                                 ApiBase::PARAM_DFLT => 1,
 448                                 ApiBase::PARAM_MIN => 1,
 449                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 450                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 451                         ),
 452                         'start' => array(
 453                                 ApiBase::PARAM_TYPE => 'timestamp'
 454                         ),
 455                         'end' => array(
 456                                 ApiBase::PARAM_TYPE => 'timestamp'
 457                         ),
 458                         'urlwidth' => array(
 459                                 ApiBase::PARAM_TYPE => 'integer',
 460                                 ApiBase::PARAM_DFLT => -1
 461                         ),
 462                         'urlheight' => array(
 463                                 ApiBase::PARAM_TYPE => 'integer',
 464                                 ApiBase::PARAM_DFLT => -1
 465                         ),
 466                         'metadataversion' => array(
 467                                 ApiBase::PARAM_TYPE => 'string',
 468                                 ApiBase::PARAM_DFLT => '1',
 469                         ),
 470                         'urlparam' => array(
 471                                 ApiBase::PARAM_DFLT => '',
 472                                 ApiBase::PARAM_TYPE => 'string',
 473                         ),
 474                         'continue' => null,
 475                 );
 476         }
 477
 478         /**
 479          * Returns all possible parameters to iiprop
 480          *
 481          * @param array $filter List of properties to filter out
 482          *
 483          * @return Array
 484          */
 485         public static function getPropertyNames( $filter = array() ) {
 486                 return array_diff( array_keys( self::getProperties() ), $filter );
 487         }
 488
 489         /**
 490          * Returns array key value pairs of properties and their descriptions
 491          *
 492          * @return array
 493          */
 494         private static function getProperties() {
 495                 return array(
 496                         'timestamp' =>      ' timestamp     - Adds timestamp for the uploaded version',
 497                         'user' =>           ' user          - Adds the user who uploaded the image version',
 498                         'userid' =>         ' userid        - Add the user ID that uploaded the image version',
 499                         'comment' =>        ' comment       - Comment on the version',
 500                         'parsedcomment' =>  ' parsedcomment - Parse the comment on the version',
 501                         'url' =>            ' url           - Gives URL to the image and the description page',
 502                         'size' =>           ' size          - Adds the size of the image in bytes and the height, width and page count (if applicable)',
 503                         'dimensions' =>     ' dimensions    - Alias for size', // For backwards compatibility with Allimages
 504                         'sha1' =>           ' sha1          - Adds SHA-1 hash for the image',
 505                         'mime' =>           ' mime          - Adds MIME type of the image',
 506                         'thumbmime' =>      ' thumbmime     - Adds MIME type of the image thumbnail (requires url)',
 507                         'mediatype' =>      ' mediatype     - Adds the media type of the image',
 508                         'metadata' =>       ' metadata      - Lists EXIF metadata for the version of the image',
 509                         'archivename' =>    ' archivename   - Adds the file name of the archive version for non-latest versions',
 510                         'bitdepth' =>       ' bitdepth      - Adds the bit depth of the version',
 511                 );
 512         }
 513
 514         /**
 515          * Returns the descriptions for the properties provided by getPropertyNames()
 516          *
 517          * @param array $filter List of properties to filter out
 518          *
 519          * @return array
 520          */
 521         public static function getPropertyDescriptions( $filter = array() ) {
 522                 return array_merge(
 523                         array( 'What image information to get:' ),
 524                         array_values( array_diff_key( self::getProperties(), array_flip( $filter ) ) )
 525                 );
 526         }
 527
 528         /**
 529          * Return the API documentation for the parameters.
 530          * @return Array parameter documentation.
 531          */
 532         public function getParamDescription() {
 533                 $p = $this->getModulePrefix();
 534                 return array(
 535                         'prop' => self::getPropertyDescriptions(),
 536                         'urlwidth' => array( "If {$p}prop=url is set, a URL to an image scaled to this width will be returned.",
 537                                             'Only the current version of the image can be scaled' ),
 538                         'urlheight' => "Similar to {$p}urlwidth. Cannot be used without {$p}urlwidth",
 539                         'urlparam' => array( "A handler specific parameter string. For example, pdf's ",
 540                                 "might use 'page15-100px'. {$p}urlwidth must be used and be consistent with {$p}urlparam" ),
 541                         'limit' => 'How many image revisions to return',
 542                         'start' => 'Timestamp to start listing from',
 543                         'end' => 'Timestamp to stop listing at',
 544                         'metadataversion' => array( "Version of metadata to use. if 'latest' is specified, use latest version.",
 545                                                 "Defaults to '1' for backwards compatibility" ),
 546                         'continue' => 'If the query response includes a continue value, use it here to get another page of results'
 547                 );
 548         }
 549
 550         public static function getResultPropertiesFiltered( $filter = array() ) {
 551                 $props = array(
 552                         'timestamp' => array(
 553                                 'timestamp' => 'timestamp'
 554                         ),
 555                         'user' => array(
 556                                 'userhidden' => 'boolean',
 557                                 'user' => 'string',
 558                                 'anon' => 'boolean'
 559                         ),
 560                         'userid' => array(
 561                                 'userhidden' => 'boolean',
 562                                 'userid' => 'integer',
 563                                 'anon' => 'boolean'
 564                         ),
 565                         'size' => array(
 566                                 'size' => 'integer',
 567                                 'width' => 'integer',
 568                                 'height' => 'integer',
 569                                 'pagecount' => array(
 570                                         ApiBase::PROP_TYPE => 'integer',
 571                                         ApiBase::PROP_NULLABLE => true
 572                                 )
 573                         ),
 574                         'comment' => array(
 575                                 'commenthidden' => 'boolean',
 576                                 'comment' => array(
 577                                         ApiBase::PROP_TYPE => 'string',
 578                                         ApiBase::PROP_NULLABLE => true
 579                                 )
 580                         ),
 581                         'parsedcomment' => array(
 582                                 'commenthidden' => 'boolean',
 583                                 'parsedcomment' => array(
 584                                         ApiBase::PROP_TYPE => 'string',
 585                                         ApiBase::PROP_NULLABLE => true
 586                                 )
 587                         ),
 588                         'url' => array(
 589                                 'filehidden' => 'boolean',
 590                                 'thumburl' => array(
 591                                         ApiBase::PROP_TYPE => 'string',
 592                                         ApiBase::PROP_NULLABLE => true
 593                                 ),
 594                                 'thumbwidth' => array(
 595                                         ApiBase::PROP_TYPE => 'integer',
 596                                         ApiBase::PROP_NULLABLE => true
 597                                 ),
 598                                 'thumbheight' => array(
 599                                         ApiBase::PROP_TYPE => 'integer',
 600                                         ApiBase::PROP_NULLABLE => true
 601                                 ),
 602                                 'thumberror' => array(
 603                                         ApiBase::PROP_TYPE => 'string',
 604                                         ApiBase::PROP_NULLABLE => true
 605                                 ),
 606                                 'url' => array(
 607                                         ApiBase::PROP_TYPE => 'string',
 608                                         ApiBase::PROP_NULLABLE => true
 609                                 ),
 610                                 'descriptionurl' => array(
 611                                         ApiBase::PROP_TYPE => 'string',
 612                                         ApiBase::PROP_NULLABLE => true
 613                                 )
 614                         ),
 615                         'sha1' => array(
 616                                 'filehidden' => 'boolean',
 617                                 'sha1' => array(
 618                                         ApiBase::PROP_TYPE => 'string',
 619                                         ApiBase::PROP_NULLABLE => true
 620                                 )
 621                         ),
 622                         'mime' => array(
 623                                 'filehidden' => 'boolean',
 624                                 'mime' => array(
 625                                         ApiBase::PROP_TYPE => 'string',
 626                                         ApiBase::PROP_NULLABLE => true
 627                                 )
 628                         ),
 629                         'mediatype' => array(
 630                                 'filehidden' => 'boolean',
 631                                 'mediatype' => array(
 632                                         ApiBase::PROP_TYPE => 'string',
 633                                         ApiBase::PROP_NULLABLE => true
 634                                 )
 635                         ),
 636                         'archivename' => array(
 637                                 'filehidden' => 'boolean',
 638                                 'archivename' => array(
 639                                         ApiBase::PROP_TYPE => 'string',
 640                                         ApiBase::PROP_NULLABLE => true
 641                                 )
 642                         ),
 643                         'bitdepth' => array(
 644                                 'filehidden' => 'boolean',
 645                                 'bitdepth' => array(
 646                                         ApiBase::PROP_TYPE => 'integer',
 647                                         ApiBase::PROP_NULLABLE => true
 648                                 )
 649                         ),
 650                 );
 651                 return array_diff_key( $props, array_flip( $filter ) );
 652         }
 653
 654         public function getResultProperties() {
 655                 return self::getResultPropertiesFiltered();
 656         }
 657
 658         public function getDescription() {
 659                 return 'Returns image information and upload history';
 660         }
 661
 662         public function getPossibleErrors() {
 663                 $p = $this->getModulePrefix();
 664                 return array_merge( parent::getPossibleErrors(), array(
 665                         array( 'code' => "{$p}urlwidth", 'info' => "{$p}urlheight cannot be used without {$p}urlwidth" ),
 666                         array( 'code' => 'urlparam', 'info' => "Invalid value for {$p}urlparam" ),
 667                         array( 'code' => 'urlparam_no_width', 'info' => "{$p}urlparam requires {$p}urlwidth" ),
 668                         array( 'code' => 'urlparam_urlwidth_mismatch', 'info' => "The width set in {$p}urlparm doesnt't " .
 669                                 "match the one in {$p}urlwidth" ),
 670                 ) );
 671         }
 672
 673         public function getExamples() {
 674                 return array(
 675                         'api.php?action=query&titles=File:Albert%20Einstein%20Head.jpg&prop=imageinfo',
 676                         'api.php?action=query&titles=File:Test.jpg&prop=imageinfo&iilimit=50&iiend=20071231235959&iiprop=timestamp|user|url',
 677                 );
 678         }
 679
 680         public function getHelpUrls() {
 681                 return 'https://www.mediawiki.org/wiki/API:Properties#imageinfo_.2F_ii';
 682         }
 683
 684         public function getVersion() {
 685                 return __CLASS__ . ': $Id$';
 686         }
 687 }