includes/page/ImagePage.php

   1 <?php
   2 /**
   3  * Special handling for file description pages.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 use MediaWiki\MediaWikiServices;
  24 use Wikimedia\Rdbms\ResultWrapper;
  25
  26 /**
  27  * Class for viewing MediaWiki file description pages
  28  *
  29  * @ingroup Media
  30  */
  31 class ImagePage extends Article {
  32         /** @var File */
  33         private $displayImg;
  34
  35         /** @var FileRepo */
  36         private $repo;
  37
  38         /** @var bool */
  39         private $fileLoaded;
  40
  41         /** @var bool */
  42         protected $mExtraDescription = false;
  43
  44         /**
  45          * @var WikiFilePage
  46          */
  47         protected $mPage;
  48
  49         /**
  50          * @param Title $title
  51          * @return WikiFilePage
  52          */
  53         protected function newPage( Title $title ) {
  54                 // Overload mPage with a file-specific page
  55                 return new WikiFilePage( $title );
  56         }
  57
  58         /**
  59          * @param File $file
  60          * @return void
  61          */
  62         public function setFile( $file ) {
  63                 $this->mPage->setFile( $file );
  64                 $this->displayImg = $file;
  65                 $this->fileLoaded = true;
  66         }
  67
  68         protected function loadFile() {
  69                 if ( $this->fileLoaded ) {
  70                         return;
  71                 }
  72                 $this->fileLoaded = true;
  73
  74                 $this->displayImg = $img = false;
  75
  76                 Hooks::run( 'ImagePageFindFile', [ $this, &$img, &$this->displayImg ] );
  77                 if ( !$img ) { // not set by hook?
  78                         $img = wfFindFile( $this->getTitle() );
  79                         if ( !$img ) {
  80                                 $img = wfLocalFile( $this->getTitle() );
  81                         }
  82                 }
  83                 $this->mPage->setFile( $img );
  84                 if ( !$this->displayImg ) { // not set by hook?
  85                         $this->displayImg = $img;
  86                 }
  87                 $this->repo = $img->getRepo();
  88         }
  89
  90         public function view() {
  91                 global $wgShowEXIF;
  92
  93                 // For action=render, include body text only; none of the image extras
  94                 if ( $this->viewIsRenderAction ) {
  95                         parent::view();
  96                         return;
  97                 }
  98
  99                 $out = $this->getContext()->getOutput();
 100                 $request = $this->getContext()->getRequest();
 101                 $diff = $request->getVal( 'diff' );
 102                 $diffOnly = $request->getBool(
 103                         'diffonly',
 104                         $this->getContext()->getUser()->getOption( 'diffonly' )
 105                 );
 106
 107                 if ( $this->getTitle()->getNamespace() != NS_FILE || ( $diff !== null && $diffOnly ) ) {
 108                         parent::view();
 109                         return;
 110                 }
 111
 112                 $this->loadFile();
 113
 114                 if ( $this->getTitle()->getNamespace() == NS_FILE && $this->mPage->getFile()->getRedirected() ) {
 115                         if ( $this->getTitle()->getDBkey() == $this->mPage->getFile()->getName() || $diff !== null ) {
 116                                 $request->setVal( 'diffonly', 'true' );
 117                         }
 118
 119                         parent::view();
 120                         return;
 121                 }
 122
 123                 if ( $wgShowEXIF && $this->displayImg->exists() ) {
 124                         // @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 125                         $formattedMetadata = $this->displayImg->formatMetadata( $this->getContext() );
 126                         $showmeta = $formattedMetadata !== false;
 127                 } else {
 128                         $showmeta = false;
 129                 }
 130
 131                 if ( !$diff && $this->displayImg->exists() ) {
 132                         $out->addHTML( $this->showTOC( $showmeta ) );
 133                 }
 134
 135                 if ( !$diff ) {
 136                         $this->openShowImage();
 137                 }
 138
 139                 # No need to display noarticletext, we use our own message, output in openShowImage()
 140                 if ( $this->mPage->getId() ) {
 141                         # NS_FILE is in the user language, but this section (the actual wikitext)
 142                         # should be in page content language
 143                         $pageLang = $this->getTitle()->getPageViewLanguage();
 144                         $out->addHTML( Xml::openElement( 'div', [ 'id' => 'mw-imagepage-content',
 145                                 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
 146                                 'class' => 'mw-content-' . $pageLang->getDir() ] ) );
 147
 148                         parent::view();
 149
 150                         $out->addHTML( Xml::closeElement( 'div' ) );
 151                 } else {
 152                         # Just need to set the right headers
 153                         $out->setArticleFlag( true );
 154                         $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 155                         $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 156                 }
 157
 158                 # Show shared description, if needed
 159                 if ( $this->mExtraDescription ) {
 160                         $fol = $this->getContext()->msg( 'shareddescriptionfollows' );
 161                         if ( !$fol->isDisabled() ) {
 162                                 $out->addWikiTextAsInterface( $fol->plain() );
 163                         }
 164                         $out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
 165                 }
 166
 167                 $this->closeShowImage();
 168                 $this->imageHistory();
 169                 // TODO: Cleanup the following
 170
 171                 $out->addHTML( Xml::element( 'h2',
 172                         [ 'id' => 'filelinks' ],
 173                                 $this->getContext()->msg( 'imagelinks' )->text() ) . "\n" );
 174                 $this->imageDupes();
 175                 # @todo FIXME: For some freaky reason, we can't redirect to foreign images.
 176                 # Yet we return metadata about the target. Definitely an issue in the FileRepo
 177                 $this->imageLinks();
 178
 179                 # Allow extensions to add something after the image links
 180                 $html = '';
 181                 Hooks::run( 'ImagePageAfterImageLinks', [ $this, &$html ] );
 182                 if ( $html ) {
 183                         $out->addHTML( $html );
 184                 }
 185
 186                 if ( $showmeta ) {
 187                         $out->addHTML( Xml::element(
 188                                 'h2',
 189                                 [ 'id' => 'metadata' ],
 190                                         $this->getContext()->msg( 'metadata' )->text() ) . "\n" );
 191                         $out->wrapWikiTextAsInterface(
 192                                 'mw-imagepage-section-metadata',
 193                                 $this->makeMetadataTable( $formattedMetadata )
 194                         );
 195                         $out->addModules( [ 'mediawiki.action.view.metadata' ] );
 196                 }
 197
 198                 // Add remote Filepage.css
 199                 if ( !$this->repo->isLocal() ) {
 200                         $css = $this->repo->getDescriptionStylesheetUrl();
 201                         if ( $css ) {
 202                                 $out->addStyle( $css );
 203                         }
 204                 }
 205
 206                 $out->addModuleStyles( [
 207                         'filepage', // always show the local local Filepage.css, T31277
 208                         'mediawiki.action.view.filepage', // Add MediaWiki styles for a file page
 209                 ] );
 210         }
 211
 212         /**
 213          * @return File
 214          */
 215         public function getDisplayedFile() {
 216                 $this->loadFile();
 217                 return $this->displayImg;
 218         }
 219
 220         /**
 221          * Create the TOC
 222          *
 223          * @param bool $metadata Whether or not to show the metadata link
 224          * @return string
 225          */
 226         protected function showTOC( $metadata ) {
 227                 $r = [
 228                         '<li><a href="#file">' . $this->getContext()->msg( 'file-anchor-link' )->escaped() . '</a></li>',
 229                         '<li><a href="#filehistory">' . $this->getContext()->msg( 'filehist' )->escaped() . '</a></li>',
 230                         '<li><a href="#filelinks">' . $this->getContext()->msg( 'imagelinks' )->escaped() . '</a></li>',
 231                 ];
 232
 233                 Hooks::run( 'ImagePageShowTOC', [ $this, &$r ] );
 234
 235                 if ( $metadata ) {
 236                         $r[] = '<li><a href="#metadata">' .
 237                                 $this->getContext()->msg( 'metadata' )->escaped() .
 238                                 '</a></li>';
 239                 }
 240
 241                 return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
 242         }
 243
 244         /**
 245          * Make a table with metadata to be shown in the output page.
 246          *
 247          * @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 248          *
 249          * @param array $metadata The array containing the Exif data
 250          * @return string The metadata table. This is treated as Wikitext (!)
 251          */
 252         protected function makeMetadataTable( $metadata ) {
 253                 $r = $this->getContext()->msg( 'metadata-help' )->plain();
 254                 // Intial state is collapsed
 255                 // see filepage.css and mediawiki.action.view.metadata module.
 256                 $r .= "<table id=\"mw_metadata\" class=\"mw_metadata collapsed\">\n";
 257                 foreach ( $metadata as $type => $stuff ) {
 258                         foreach ( $stuff as $v ) {
 259                                 $class = str_replace( ' ', '_', $v['id'] );
 260                                 if ( $type == 'collapsed' ) {
 261                                         $class .= ' mw-metadata-collapsible';
 262                                 }
 263                                 $r .= Html::rawElement( 'tr',
 264                                         [ 'class' => $class ],
 265                                         Html::rawElement( 'th', [], $v['name'] )
 266                                                 . Html::rawElement( 'td', [], $v['value'] )
 267                                 );
 268                         }
 269                 }
 270                 $r .= "</table>\n";
 271                 return $r;
 272         }
 273
 274         /**
 275          * Overloading Article's getEmptyPageParserOutput method.
 276          *
 277          * Omit noarticletext if sharedupload; text will be fetched from the
 278          * shared upload server if possible.
 279          *
 280          * @param ParserOptions $options
 281          * @return ParserOutput
 282          */
 283         public function getEmptyPageParserOutput( ParserOptions $options ) {
 284                 $this->loadFile();
 285                 if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && $this->getId() == 0 ) {
 286                         return new ParserOutput();
 287                 }
 288                 return parent::getEmptyPageParserOutput( $options );
 289         }
 290
 291         /**
 292          * Returns language code to be used for dispaying the image, based on request context and
 293          * languages available in the file.
 294          *
 295          * @param WebRequest $request
 296          * @param File $file
 297          * @return string|null
 298          */
 299         private function getLanguageForRendering( WebRequest $request, File $file ) {
 300                 $handler = $file->getHandler();
 301                 if ( !$handler ) {
 302                         return null;
 303                 }
 304
 305                 $config = MediaWikiServices::getInstance()->getMainConfig();
 306                 $requestLanguage = $request->getVal( 'lang', $config->get( 'LanguageCode' ) );
 307                 if ( $handler->validateParam( 'lang', $requestLanguage ) ) {
 308                         return $file->getMatchedLanguage( $requestLanguage );
 309                 }
 310
 311                 return $handler->getDefaultRenderLanguage( $file );
 312         }
 313
 314         protected function openShowImage() {
 315                 global $wgEnableUploads, $wgSend404Code, $wgSVGMaxSize;
 316
 317                 $this->loadFile();
 318                 $out = $this->getContext()->getOutput();
 319                 $user = $this->getContext()->getUser();
 320                 $lang = $this->getContext()->getLanguage();
 321                 $dirmark = $lang->getDirMarkEntity();
 322                 $request = $this->getContext()->getRequest();
 323
 324                 $max = $this->getImageLimitsFromOption( $user, 'imagesize' );
 325                 $maxWidth = $max[0];
 326                 $maxHeight = $max[1];
 327
 328                 if ( $this->displayImg->exists() ) {
 329                         # image
 330                         $page = $request->getIntOrNull( 'page' );
 331                         if ( is_null( $page ) ) {
 332                                 $params = [];
 333                                 $page = 1;
 334                         } else {
 335                                 $params = [ 'page' => $page ];
 336                         }
 337
 338                         $renderLang = $this->getLanguageForRendering( $request, $this->displayImg );
 339                         if ( !is_null( $renderLang ) ) {
 340                                 $params['lang'] = $renderLang;
 341                         }
 342
 343                         $width_orig = $this->displayImg->getWidth( $page );
 344                         $width = $width_orig;
 345                         $height_orig = $this->displayImg->getHeight( $page );
 346                         $height = $height_orig;
 347
 348                         $filename = wfEscapeWikiText( $this->displayImg->getName() );
 349                         $linktext = $filename;
 350
 351                         // Avoid PHP 7.1 warning from passing $this by reference
 352                         $imagePage = $this;
 353
 354                         Hooks::run( 'ImageOpenShowImageInlineBefore', [ &$imagePage, &$out ] );
 355
 356                         if ( $this->displayImg->allowInlineDisplay() ) {
 357                                 # image
 358                                 # "Download high res version" link below the image
 359                                 # $msgsize = $this->getContext()->msg( 'file-info-size', $width_orig, $height_orig,
 360                                 #   Language::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
 361                                 # We'll show a thumbnail of this image
 362                                 if ( $width > $maxWidth || $height > $maxHeight || $this->displayImg->isVectorized() ) {
 363                                         list( $width, $height ) = $this->getDisplayWidthHeight(
 364                                                 $maxWidth, $maxHeight, $width, $height
 365                                         );
 366                                         $linktext = $this->getContext()->msg( 'show-big-image' )->escaped();
 367
 368                                         $thumbSizes = $this->getThumbSizes( $width_orig, $height_orig );
 369                                         # Generate thumbnails or thumbnail links as needed...
 370                                         $otherSizes = [];
 371                                         foreach ( $thumbSizes as $size ) {
 372                                                 // We include a thumbnail size in the list, if it is
 373                                                 // less than or equal to the original size of the image
 374                                                 // asset ($width_orig/$height_orig). We also exclude
 375                                                 // the current thumbnail's size ($width/$height)
 376                                                 // since that is added to the message separately, so
 377                                                 // it can be denoted as the current size being shown.
 378                                                 // Vectorized images are limited by $wgSVGMaxSize big,
 379                                                 // so all thumbs less than or equal that are shown.
 380                                                 if ( ( ( $size[0] <= $width_orig && $size[1] <= $height_orig )
 381                                                                 || ( $this->displayImg->isVectorized()
 382                                                                         && max( $size[0], $size[1] ) <= $wgSVGMaxSize )
 383                                                         )
 384                                                         && $size[0] != $width && $size[1] != $height
 385                                                 ) {
 386                                                         $sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
 387                                                         if ( $sizeLink ) {
 388                                                                 $otherSizes[] = $sizeLink;
 389                                                         }
 390                                                 }
 391                                         }
 392                                         $otherSizes = array_unique( $otherSizes );
 393
 394                                         $sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
 395                                         $msgsmall = $this->getThumbPrevText( $params, $sizeLinkBigImagePreview );
 396                                         if ( count( $otherSizes ) ) {
 397                                                 $msgsmall .= ' ' .
 398                                                 Html::rawElement(
 399                                                         'span',
 400                                                         [ 'class' => 'mw-filepage-other-resolutions' ],
 401                                                         $this->getContext()->msg( 'show-big-image-other' )
 402                                                                 ->rawParams( $lang->pipeList( $otherSizes ) )
 403                                                                 ->params( count( $otherSizes ) )
 404                                                                 ->parse()
 405                                                 );
 406                                         }
 407                                 } elseif ( $width == 0 && $height == 0 ) {
 408                                         # Some sort of audio file that doesn't have dimensions
 409                                         # Don't output a no hi res message for such a file
 410                                         $msgsmall = '';
 411                                 } else {
 412                                         # Image is small enough to show full size on image page
 413                                         $msgsmall = $this->getContext()->msg( 'file-nohires' )->parse();
 414                                 }
 415
 416                                 $params['width'] = $width;
 417                                 $params['height'] = $height;
 418                                 $thumbnail = $this->displayImg->transform( $params );
 419                                 Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
 420
 421                                 $anchorclose = Html::rawElement(
 422                                         'div',
 423                                         [ 'class' => 'mw-filepage-resolutioninfo' ],
 424                                         $msgsmall
 425                                 );
 426
 427                                 $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
 428                                 if ( $isMulti ) {
 429                                         $out->addModules( 'mediawiki.page.image.pagination' );
 430                                         $out->addHTML( '<table class="multipageimage"><tr><td>' );
 431                                 }
 432
 433                                 if ( $thumbnail ) {
 434                                         $options = [
 435                                                 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
 436                                                 'file-link' => true,
 437                                         ];
 438                                         $out->addHTML( '<div class="fullImageLink" id="file">' .
 439                                                 $thumbnail->toHtml( $options ) .
 440                                                 $anchorclose . "</div>\n" );
 441                                 }
 442
 443                                 if ( $isMulti ) {
 444                                         $count = $this->displayImg->pageCount();
 445
 446                                         if ( $page > 1 ) {
 447                                                 $label = $this->getContext()->msg( 'imgmultipageprev' )->text();
 448                                                 // on the client side, this link is generated in ajaxifyPageNavigation()
 449                                                 // in the mediawiki.page.image.pagination module
 450                                                 $link = Linker::linkKnown(
 451                                                         $this->getTitle(),
 452                                                         htmlspecialchars( $label ),
 453                                                         [],
 454                                                         [ 'page' => $page - 1 ]
 455                                                 );
 456                                                 $thumb1 = Linker::makeThumbLinkObj(
 457                                                         $this->getTitle(),
 458                                                         $this->displayImg,
 459                                                         $link,
 460                                                         $label,
 461                                                         'none',
 462                                                         [ 'page' => $page - 1 ]
 463                                                 );
 464                                         } else {
 465                                                 $thumb1 = '';
 466                                         }
 467
 468                                         if ( $page < $count ) {
 469                                                 $label = $this->getContext()->msg( 'imgmultipagenext' )->text();
 470                                                 $link = Linker::linkKnown(
 471                                                         $this->getTitle(),
 472                                                         htmlspecialchars( $label ),
 473                                                         [],
 474                                                         [ 'page' => $page + 1 ]
 475                                                 );
 476                                                 $thumb2 = Linker::makeThumbLinkObj(
 477                                                         $this->getTitle(),
 478                                                         $this->displayImg,
 479                                                         $link,
 480                                                         $label,
 481                                                         'none',
 482                                                         [ 'page' => $page + 1 ]
 483                                                 );
 484                                         } else {
 485                                                 $thumb2 = '';
 486                                         }
 487
 488                                         global $wgScript;
 489
 490                                         $formParams = [
 491                                                 'name' => 'pageselector',
 492                                                 'action' => $wgScript,
 493                                         ];
 494                                         $options = [];
 495                                         for ( $i = 1; $i <= $count; $i++ ) {
 496                                                 $options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
 497                                         }
 498                                         $select = Xml::tags( 'select',
 499                                                 [ 'id' => 'pageselector', 'name' => 'page' ],
 500                                                 implode( "\n", $options ) );
 501
 502                                         $out->addHTML(
 503                                                 '</td><td><div class="multipageimagenavbox">' .
 504                                                 Xml::openElement( 'form', $formParams ) .
 505                                                 Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
 506                                                 $this->getContext()->msg( 'imgmultigoto' )->rawParams( $select )->parse() .
 507                                                 $this->getContext()->msg( 'word-separator' )->escaped() .
 508                                                 Xml::submitButton( $this->getContext()->msg( 'imgmultigo' )->text() ) .
 509                                                 Xml::closeElement( 'form' ) .
 510                                                 "<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
 511                                         );
 512                                 }
 513                         } elseif ( $this->displayImg->isSafeFile() ) {
 514                                 # if direct link is allowed but it's not a renderable image, show an icon.
 515                                 $icon = $this->displayImg->iconThumb();
 516
 517                                 $out->addHTML( '<div class="fullImageLink" id="file">' .
 518                                         $icon->toHtml( [ 'file-link' => true ] ) .
 519                                         "</div>\n" );
 520                         }
 521
 522                         $longDesc = $this->getContext()->msg( 'parentheses', $this->displayImg->getLongDesc() )->text();
 523
 524                         $handler = $this->displayImg->getHandler();
 525
 526                         // If this is a filetype with potential issues, warn the user.
 527                         if ( $handler ) {
 528                                 $warningConfig = $handler->getWarningConfig( $this->displayImg );
 529
 530                                 if ( $warningConfig !== null ) {
 531                                         // The warning will be displayed via CSS and JavaScript.
 532                                         // We just need to tell the client side what message to use.
 533                                         $output = $this->getContext()->getOutput();
 534                                         $output->addJsConfigVars( 'wgFileWarning', $warningConfig );
 535                                         $output->addModules( $warningConfig['module'] );
 536                                         $output->addModules( 'mediawiki.filewarning' );
 537                                 }
 538                         }
 539
 540                         $medialink = "[[Media:$filename|$linktext]]";
 541
 542                         if ( !$this->displayImg->isSafeFile() ) {
 543                                 $warning = $this->getContext()->msg( 'mediawarning' )->plain();
 544                                 // dirmark is needed here to separate the file name, which
 545                                 // most likely ends in Latin characters, from the description,
 546                                 // which may begin with the file type. In RTL environment
 547                                 // this will get messy.
 548                                 // The dirmark, however, must not be immediately adjacent
 549                                 // to the filename, because it can get copied with it.
 550                                 // See T27277.
 551                                 // phpcs:disable Generic.Files.LineLength
 552                                 $out->wrapWikiTextAsInterface( 'fullMedia', <<<EOT
 553 <span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span>
 554 EOT
 555                                 );
 556                                 // phpcs:enable
 557                                 $out->wrapWikiTextAsInterface( 'mediaWarning', $warning );
 558                         } else {
 559                                 $out->wrapWikiTextAsInterface( 'fullMedia', <<<EOT
 560 {$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
 561 EOT
 562                                 );
 563                         }
 564
 565                         $renderLangOptions = $this->displayImg->getAvailableLanguages();
 566                         if ( count( $renderLangOptions ) >= 1 ) {
 567                                 $out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $renderLang ) );
 568                         }
 569
 570                         // Add cannot animate thumbnail warning
 571                         if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
 572                                 // Include the extension so wiki admins can
 573                                 // customize it on a per file-type basis
 574                                 // (aka say things like use format X instead).
 575                                 // additionally have a specific message for
 576                                 // file-no-thumb-animation-gif
 577                                 $ext = $this->displayImg->getExtension();
 578                                 $noAnimMesg = wfMessageFallback(
 579                                         'file-no-thumb-animation-' . $ext,
 580                                         'file-no-thumb-animation'
 581                                 )->plain();
 582
 583                                 $out->wrapWikiTextAsInterface( 'mw-noanimatethumb', $noAnimMesg );
 584                         }
 585
 586                         if ( !$this->displayImg->isLocal() ) {
 587                                 $this->printSharedImageText();
 588                         }
 589                 } else {
 590                         # Image does not exist
 591                         if ( !$this->getId() ) {
 592                                 $dbr = wfGetDB( DB_REPLICA );
 593
 594                                 # No article exists either
 595                                 # Show deletion log to be consistent with normal articles
 596                                 LogEventsList::showLogExtract(
 597                                         $out,
 598                                         [ 'delete', 'move', 'protect' ],
 599                                         $this->getTitle()->getPrefixedText(),
 600                                         '',
 601                                         [ 'lim' => 10,
 602                                                 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
 603                                                 'showIfEmpty' => false,
 604                                                 'msgKey' => [ 'moveddeleted-notice' ]
 605                                         ]
 606                                 );
 607                         }
 608
 609                         if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
 610                                 // Only show an upload link if the user can upload
 611                                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 612                                 $nofile = [
 613                                         'filepage-nofile-link',
 614                                         $uploadTitle->getFullURL( [ 'wpDestFile' => $this->mPage->getFile()->getName() ] )
 615                                 ];
 616                         } else {
 617                                 $nofile = 'filepage-nofile';
 618                         }
 619                         // Note, if there is an image description page, but
 620                         // no image, then this setRobotPolicy is overridden
 621                         // by Article::View().
 622                         $out->setRobotPolicy( 'noindex,nofollow' );
 623                         $out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
 624                         if ( !$this->getId() && $wgSend404Code ) {
 625                                 // If there is no image, no shared image, and no description page,
 626                                 // output a 404, to be consistent with Article::showMissingArticle.
 627                                 $request->response()->statusHeader( 404 );
 628                         }
 629                 }
 630                 $out->setFileVersion( $this->displayImg );
 631         }
 632
 633         /**
 634          * Make the text under the image to say what size preview
 635          *
 636          * @param array $params parameters for thumbnail
 637          * @param string $sizeLinkBigImagePreview HTML for the current size
 638          * @return string HTML output
 639          */
 640         protected function getThumbPrevText( $params, $sizeLinkBigImagePreview ) {
 641                 if ( $sizeLinkBigImagePreview ) {
 642                         // Show a different message of preview is different format from original.
 643                         $previewTypeDiffers = false;
 644                         $origExt = $thumbExt = $this->displayImg->getExtension();
 645                         if ( $this->displayImg->getHandler() ) {
 646                                 $origMime = $this->displayImg->getMimeType();
 647                                 $typeParams = $params;
 648                                 $this->displayImg->getHandler()->normaliseParams( $this->displayImg, $typeParams );
 649                                 list( $thumbExt, $thumbMime ) = $this->displayImg->getHandler()->getThumbType(
 650                                         $origExt, $origMime, $typeParams );
 651                                 if ( $thumbMime !== $origMime ) {
 652                                         $previewTypeDiffers = true;
 653                                 }
 654                         }
 655                         if ( $previewTypeDiffers ) {
 656                                 return $this->getContext()->msg( 'show-big-image-preview-differ' )->
 657                                         rawParams( $sizeLinkBigImagePreview )->
 658                                         params( strtoupper( $origExt ) )->
 659                                         params( strtoupper( $thumbExt ) )->
 660                                         parse();
 661                         } else {
 662                                 return $this->getContext()->msg( 'show-big-image-preview' )->
 663                                         rawParams( $sizeLinkBigImagePreview )->
 664                                 parse();
 665                         }
 666                 } else {
 667                         return '';
 668                 }
 669         }
 670
 671         /**
 672          * Creates an thumbnail of specified size and returns an HTML link to it
 673          * @param array $params Scaler parameters
 674          * @param int $width
 675          * @param int $height
 676          * @return string
 677          */
 678         protected function makeSizeLink( $params, $width, $height ) {
 679                 $params['width'] = $width;
 680                 $params['height'] = $height;
 681                 $thumbnail = $this->displayImg->transform( $params );
 682                 if ( $thumbnail && !$thumbnail->isError() ) {
 683                         return Html::rawElement( 'a', [
 684                                 'href' => $thumbnail->getUrl(),
 685                                 'class' => 'mw-thumbnail-link'
 686                                 ], $this->getContext()->msg( 'show-big-image-size' )->numParams(
 687                                         $thumbnail->getWidth(), $thumbnail->getHeight()
 688                                 )->parse() );
 689                 } else {
 690                         return '';
 691                 }
 692         }
 693
 694         /**
 695          * Show a notice that the file is from a shared repository
 696          */
 697         protected function printSharedImageText() {
 698                 $out = $this->getContext()->getOutput();
 699                 $this->loadFile();
 700
 701                 $descUrl = $this->mPage->getFile()->getDescriptionUrl();
 702                 $descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
 703
 704                 /* Add canonical to head if there is no local page for this shared file */
 705                 if ( $descUrl && $this->mPage->getId() == 0 ) {
 706                         $out->setCanonicalUrl( $descUrl );
 707                 }
 708
 709                 $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
 710                 $repo = $this->mPage->getFile()->getRepo()->getDisplayName();
 711
 712                 if ( $descUrl &&
 713                         $descText &&
 714                         $this->getContext()->msg( 'sharedupload-desc-here' )->plain() !== '-'
 715                 ) {
 716                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-here', $repo, $descUrl ] );
 717                 } elseif ( $descUrl &&
 718                         $this->getContext()->msg( 'sharedupload-desc-there' )->plain() !== '-'
 719                 ) {
 720                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-there', $repo, $descUrl ] );
 721                 } else {
 722                         $out->wrapWikiMsg( $wrap, [ 'sharedupload', $repo ], ''/*BACKCOMPAT*/ );
 723                 }
 724
 725                 if ( $descText ) {
 726                         $this->mExtraDescription = $descText;
 727                 }
 728         }
 729
 730         public function getUploadUrl() {
 731                 $this->loadFile();
 732                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 733                 return $uploadTitle->getFullURL( [
 734                         'wpDestFile' => $this->mPage->getFile()->getName(),
 735                         'wpForReUpload' => 1
 736                 ] );
 737         }
 738
 739         /**
 740          * Print out the various links at the bottom of the image page, e.g. reupload,
 741          * external editing (and instructions link) etc.
 742          */
 743         protected function uploadLinksBox() {
 744                 global $wgEnableUploads;
 745
 746                 if ( !$wgEnableUploads ) {
 747                         return;
 748                 }
 749
 750                 $this->loadFile();
 751                 if ( !$this->mPage->getFile()->isLocal() ) {
 752                         return;
 753                 }
 754
 755                 $out = $this->getContext()->getOutput();
 756                 $out->addHTML( "<ul>\n" );
 757
 758                 # "Upload a new version of this file" link
 759                 $canUpload = $this->getTitle()->quickUserCan( 'upload', $this->getContext()->getUser() );
 760                 if ( $canUpload && UploadBase::userCanReUpload(
 761                                 $this->getContext()->getUser(),
 762                                 $this->mPage->getFile() )
 763                 ) {
 764                         $ulink = Linker::makeExternalLink(
 765                                 $this->getUploadUrl(),
 766                                 $this->getContext()->msg( 'uploadnewversion-linktext' )->text()
 767                         );
 768                         $out->addHTML( "<li id=\"mw-imagepage-reupload-link\">"
 769                                 . "<div class=\"plainlinks\">{$ulink}</div></li>\n" );
 770                 } else {
 771                         $out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">"
 772                                 . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
 773                 }
 774
 775                 $out->addHTML( "</ul>\n" );
 776         }
 777
 778         /**
 779          * For overloading
 780          */
 781         protected function closeShowImage() {
 782         }
 783
 784         /**
 785          * If the page we've just displayed is in the "Image" namespace,
 786          * we follow it with an upload history of the image and its usage.
 787          */
 788         protected function imageHistory() {
 789                 $this->loadFile();
 790                 $out = $this->getContext()->getOutput();
 791                 $pager = new ImageHistoryPseudoPager( $this );
 792                 $out->addHTML( $pager->getBody() );
 793                 $out->preventClickjacking( $pager->getPreventClickjacking() );
 794
 795                 $this->mPage->getFile()->resetHistory(); // free db resources
 796
 797                 # Exist check because we don't want to show this on pages where an image
 798                 # doesn't exist along with the noimage message, that would suck. -ævar
 799                 if ( $this->mPage->getFile()->exists() ) {
 800                         $this->uploadLinksBox();
 801                 }
 802         }
 803
 804         /**
 805          * @param string $target
 806          * @param int $limit
 807          * @return ResultWrapper
 808          */
 809         protected function queryImageLinks( $target, $limit ) {
 810                 $dbr = wfGetDB( DB_REPLICA );
 811
 812                 return $dbr->select(
 813                         [ 'imagelinks', 'page' ],
 814                         [ 'page_namespace', 'page_title', 'il_to' ],
 815                         [ 'il_to' => $target, 'il_from = page_id' ],
 816                         __METHOD__,
 817                         [ 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', ]
 818                 );
 819         }
 820
 821         protected function imageLinks() {
 822                 $limit = 100;
 823
 824                 $out = $this->getContext()->getOutput();
 825
 826                 $rows = [];
 827                 $redirects = [];
 828                 foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
 829                         $redirects[$redir->getDBkey()] = [];
 830                         $rows[] = (object)[
 831                                 'page_namespace' => NS_FILE,
 832                                 'page_title' => $redir->getDBkey(),
 833                         ];
 834                 }
 835
 836                 $res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
 837                 foreach ( $res as $row ) {
 838                         $rows[] = $row;
 839                 }
 840                 $count = count( $rows );
 841
 842                 $hasMore = $count > $limit;
 843                 if ( !$hasMore && count( $redirects ) ) {
 844                         $res = $this->queryImageLinks( array_keys( $redirects ),
 845                                 $limit - count( $rows ) + 1 );
 846                         foreach ( $res as $row ) {
 847                                 $redirects[$row->il_to][] = $row;
 848                                 $count++;
 849                         }
 850                         $hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
 851                 }
 852
 853                 if ( $count == 0 ) {
 854                         $out->wrapWikiMsg(
 855                                 Html::rawElement( 'div',
 856                                         [ 'id' => 'mw-imagepage-nolinkstoimage' ], "\n$1\n" ),
 857                                 'nolinkstoimage'
 858                         );
 859                         return;
 860                 }
 861
 862                 $out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
 863                 if ( !$hasMore ) {
 864                         $out->addWikiMsg( 'linkstoimage', $count );
 865                 } else {
 866                         // More links than the limit. Add a link to [[Special:Whatlinkshere]]
 867                         $out->addWikiMsg( 'linkstoimage-more',
 868                                 $this->getContext()->getLanguage()->formatNum( $limit ),
 869                                 $this->getTitle()->getPrefixedDBkey()
 870                         );
 871                 }
 872
 873                 $out->addHTML(
 874                         Html::openElement( 'ul',
 875                                 [ 'class' => 'mw-imagepage-linkstoimage' ] ) . "\n"
 876                 );
 877                 $count = 0;
 878
 879                 // Sort the list by namespace:title
 880                 usort( $rows, [ $this, 'compare' ] );
 881
 882                 // Create links for every element
 883                 $currentCount = 0;
 884                 foreach ( $rows as $element ) {
 885                         $currentCount++;
 886                         if ( $currentCount > $limit ) {
 887                                 break;
 888                         }
 889
 890                         $query = [];
 891                         # Add a redirect=no to make redirect pages reachable
 892                         if ( isset( $redirects[$element->page_title] ) ) {
 893                                 $query['redirect'] = 'no';
 894                         }
 895                         $link = Linker::linkKnown(
 896                                 Title::makeTitle( $element->page_namespace, $element->page_title ),
 897                                 null, [], $query
 898                         );
 899                         if ( !isset( $redirects[$element->page_title] ) ) {
 900                                 # No redirects
 901                                 $liContents = $link;
 902                         } elseif ( count( $redirects[$element->page_title] ) === 0 ) {
 903                                 # Redirect without usages
 904                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )
 905                                         ->rawParams( $link, '' )
 906                                         ->parse();
 907                         } else {
 908                                 # Redirect with usages
 909                                 $li = '';
 910                                 foreach ( $redirects[$element->page_title] as $row ) {
 911                                         $currentCount++;
 912                                         if ( $currentCount > $limit ) {
 913                                                 break;
 914                                         }
 915
 916                                         $link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
 917                                         $li .= Html::rawElement(
 918                                                 'li',
 919                                                 [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 920                                                 $link2
 921                                                 ) . "\n";
 922                                 }
 923
 924                                 $ul = Html::rawElement(
 925                                         'ul',
 926                                         [ 'class' => 'mw-imagepage-redirectstofile' ],
 927                                         $li
 928                                         ) . "\n";
 929                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )->rawParams(
 930                                         $link, $ul )->parse();
 931                         }
 932                         $out->addHTML( Html::rawElement(
 933                                         'li',
 934                                         [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 935                                         $liContents
 936                                 ) . "\n"
 937                         );
 938
 939                 };
 940                 $out->addHTML( Html::closeElement( 'ul' ) . "\n" );
 941                 $res->free();
 942
 943                 // Add a links to [[Special:Whatlinkshere]]
 944                 if ( $count > $limit ) {
 945                         $out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
 946                 }
 947                 $out->addHTML( Html::closeElement( 'div' ) . "\n" );
 948         }
 949
 950         protected function imageDupes() {
 951                 $this->loadFile();
 952                 $out = $this->getContext()->getOutput();
 953
 954                 $dupes = $this->mPage->getDuplicates();
 955                 if ( count( $dupes ) == 0 ) {
 956                         return;
 957                 }
 958
 959                 $out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
 960                 $out->addWikiMsg( 'duplicatesoffile',
 961                         $this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
 962                 );
 963                 $out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 964
 965                 /**
 966                  * @var $file File
 967                  */
 968                 foreach ( $dupes as $file ) {
 969                         $fromSrc = '';
 970                         if ( $file->isLocal() ) {
 971                                 $link = Linker::linkKnown( $file->getTitle() );
 972                         } else {
 973                                 $link = Linker::makeExternalLink( $file->getDescriptionUrl(),
 974                                         $file->getTitle()->getPrefixedText() );
 975                                 $fromSrc = $this->getContext()->msg(
 976                                         'shared-repo-from',
 977                                         $file->getRepo()->getDisplayName()
 978                                 )->escaped();
 979                         }
 980                         $out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
 981                 }
 982                 $out->addHTML( "</ul></div>\n" );
 983         }
 984
 985         /**
 986          * Delete the file, or an earlier version of it
 987          */
 988         public function delete() {
 989                 $file = $this->mPage->getFile();
 990                 if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
 991                         // Standard article deletion
 992                         parent::delete();
 993                         return;
 994                 }
 995
 996                 $deleter = new FileDeleteForm( $file );
 997                 $deleter->execute();
 998         }
 999
1000         /**
1001          * Display an error with a wikitext description
1002          *
1003          * @param string $description
1004          */
1005         function showError( $description ) {
1006                 $out = $this->getContext()->getOutput();
1007                 $out->setPageTitle( $this->getContext()->msg( 'internalerror' ) );
1008                 $out->setRobotPolicy( 'noindex,nofollow' );
1009                 $out->setArticleRelated( false );
1010                 $out->enableClientCache( false );
1011                 $out->addWikiTextAsInterface( $description );
1012         }
1013
1014         /**
1015          * Callback for usort() to do link sorts by (namespace, title)
1016          * Function copied from Title::compare()
1017          *
1018          * @param object $a Object page to compare with
1019          * @param object $b Object page to compare with
1020          * @return int Result of string comparison, or namespace comparison
1021          */
1022         protected function compare( $a, $b ) {
1023                 return $a->page_namespace <=> $b->page_namespace
1024                         ?: strcmp( $a->page_title, $b->page_title );
1025         }
1026
1027         /**
1028          * Returns the corresponding $wgImageLimits entry for the selected user option
1029          *
1030          * @param User $user
1031          * @param string $optionName Name of a option to check, typically imagesize or thumbsize
1032          * @return array
1033          * @since 1.21
1034          */
1035         public function getImageLimitsFromOption( $user, $optionName ) {
1036                 global $wgImageLimits;
1037
1038                 $option = $user->getIntOption( $optionName );
1039                 if ( !isset( $wgImageLimits[$option] ) ) {
1040                         $option = User::getDefaultOption( $optionName );
1041                 }
1042
1043                 // The user offset might still be incorrect, specially if
1044                 // $wgImageLimits got changed (see T10858).
1045                 if ( !isset( $wgImageLimits[$option] ) ) {
1046                         // Default to the first offset in $wgImageLimits
1047                         $option = 0;
1048                 }
1049
1050                 // if nothing is set, fallback to a hardcoded default
1051                 return $wgImageLimits[$option] ?? [ 800, 600 ];
1052         }
1053
1054         /**
1055          * Output a drop-down box for language options for the file
1056          *
1057          * @param array $langChoices Array of string language codes
1058          * @param string $renderLang Language code for the language we want the file to rendered in.
1059          * @return string HTML to insert underneath image.
1060          */
1061         protected function doRenderLangOpt( array $langChoices, $renderLang ) {
1062                 global $wgScript;
1063                 $opts = '';
1064
1065                 $matchedRenderLang = $this->displayImg->getMatchedLanguage( $renderLang );
1066
1067                 foreach ( $langChoices as $lang ) {
1068                         $opts .= $this->createXmlOptionStringForLanguage(
1069                                 $lang,
1070                                 $matchedRenderLang === $lang
1071                         );
1072                 }
1073
1074                 // Allow for the default case in an svg <switch> that is displayed if no
1075                 // systemLanguage attribute matches
1076                 $opts .= "\n" .
1077                         Xml::option(
1078                                 $this->getContext()->msg( 'img-lang-default' )->text(),
1079                                 'und',
1080                                 is_null( $matchedRenderLang )
1081                         );
1082
1083                 $select = Html::rawElement(
1084                         'select',
1085                         [ 'id' => 'mw-imglangselector', 'name' => 'lang' ],
1086                         $opts
1087                 );
1088                 $submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
1089
1090                 $formContents = $this->getContext()->msg( 'img-lang-info' )
1091                         ->rawParams( $select, $submit )
1092                         ->parse();
1093                 $formContents .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
1094
1095                 $langSelectLine = Html::rawElement( 'div', [ 'id' => 'mw-imglangselector-line' ],
1096                         Html::rawElement( 'form', [ 'action' => $wgScript ], $formContents )
1097                 );
1098                 return $langSelectLine;
1099         }
1100
1101         /**
1102          * @param string $lang
1103          * @param bool $selected
1104          * @return string
1105          */
1106         private function createXmlOptionStringForLanguage( $lang, $selected ) {
1107                 $code = LanguageCode::bcp47( $lang );
1108                 $name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
1109                 if ( $name !== '' ) {
1110                         $display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
1111                 } else {
1112                         $display = $code;
1113                 }
1114                 return "\n" .
1115                         Xml::option(
1116                                 $display,
1117                                 $lang,
1118                                 $selected
1119                         );
1120         }
1121
1122         /**
1123          * Get the width and height to display image at.
1124          *
1125          * @note This method assumes that it is only called if one
1126          *  of the dimensions are bigger than the max, or if the
1127          *  image is vectorized.
1128          *
1129          * @param int $maxWidth Max width to display at
1130          * @param int $maxHeight Max height to display at
1131          * @param int $width Actual width of the image
1132          * @param int $height Actual height of the image
1133          * @throws MWException
1134          * @return array Array (width, height)
1135          */
1136         protected function getDisplayWidthHeight( $maxWidth, $maxHeight, $width, $height ) {
1137                 if ( !$maxWidth || !$maxHeight ) {
1138                         // should never happen
1139                         throw new MWException( 'Using a choice from $wgImageLimits that is 0x0' );
1140                 }
1141
1142                 if ( !$width || !$height ) {
1143                         return [ 0, 0 ];
1144                 }
1145
1146                 # Calculate the thumbnail size.
1147                 if ( $width <= $maxWidth && $height <= $maxHeight ) {
1148                         // Vectorized image, do nothing.
1149                 } elseif ( $width / $height >= $maxWidth / $maxHeight ) {
1150                         # The limiting factor is the width, not the height.
1151                         $height = round( $height * $maxWidth / $width );
1152                         $width = $maxWidth;
1153                         # Note that $height <= $maxHeight now.
1154                 } else {
1155                         $newwidth = floor( $width * $maxHeight / $height );
1156                         $height = round( $height * $newwidth / $width );
1157                         $width = $newwidth;
1158                         # Note that $height <= $maxHeight now, but might not be identical
1159                         # because of rounding.
1160                 }
1161                 return [ $width, $height ];
1162         }
1163
1164         /**
1165          * Get alternative thumbnail sizes.
1166          *
1167          * @note This will only list several alternatives if thumbnails are rendered on 404
1168          * @param int $origWidth Actual width of image
1169          * @param int $origHeight Actual height of image
1170          * @return array An array of [width, height] pairs.
1171          */
1172         protected function getThumbSizes( $origWidth, $origHeight ) {
1173                 global $wgImageLimits;
1174                 if ( $this->displayImg->getRepo()->canTransformVia404() ) {
1175                         $thumbSizes = $wgImageLimits;
1176                         // Also include the full sized resolution in the list, so
1177                         // that users know they can get it. This will link to the
1178                         // original file asset if mustRender() === false. In the case
1179                         // that we mustRender, some users have indicated that they would
1180                         // find it useful to have the full size image in the rendered
1181                         // image format.
1182                         $thumbSizes[] = [ $origWidth, $origHeight ];
1183                 } else {
1184                         # Creating thumb links triggers thumbnail generation.
1185                         # Just generate the thumb for the current users prefs.
1186                         $thumbSizes = [
1187                                 $this->getImageLimitsFromOption( $this->getContext()->getUser(), 'thumbsize' )
1188                         ];
1189                         if ( !$this->displayImg->mustRender() ) {
1190                                 // We can safely include a link to the "full-size" preview,
1191                                 // without actually rendering.
1192                                 $thumbSizes[] = [ $origWidth, $origHeight ];
1193                         }
1194                 }
1195                 return $thumbSizes;
1196         }
1197
1198         /**
1199          * @see WikiFilePage::getFile
1200          * @return bool|File
1201          */
1202         public function getFile() {
1203                 return $this->mPage->getFile();
1204         }
1205
1206         /**
1207          * @see WikiFilePage::isLocal
1208          * @return bool
1209          */
1210         public function isLocal() {
1211                 return $this->mPage->isLocal();
1212         }
1213
1214         /**
1215          * @see WikiFilePage::getDuplicates
1216          * @return array|null
1217          */
1218         public function getDuplicates() {
1219                 return $this->mPage->getDuplicates();
1220         }
1221
1222         /**
1223          * @see WikiFilePage::getForeignCategories
1224          * @return TitleArray|Title[]
1225          */
1226         public function getForeignCategories() {
1227                 $this->mPage->getForeignCategories();
1228         }
1229
1230 }