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 /**
  24  * Class for viewing MediaWiki file description pages
  25  *
  26  * @ingroup Media
  27  */
  28 class ImagePage extends Article {
  29         /** @var File */
  30         private $displayImg;
  31
  32         /** @var FileRepo */
  33         private $repo;
  34
  35         /** @var bool */
  36         private $fileLoaded;
  37
  38         /** @var bool */
  39         protected $mExtraDescription = false;
  40
  41         /**
  42          * @var WikiFilePage
  43          */
  44         protected $mPage;
  45
  46         /**
  47          * @param Title $title
  48          * @return WikiFilePage
  49          */
  50         protected function newPage( Title $title ) {
  51                 // Overload mPage with a file-specific page
  52                 return new WikiFilePage( $title );
  53         }
  54
  55         /**
  56          * @param File $file
  57          * @return void
  58          */
  59         public function setFile( $file ) {
  60                 $this->mPage->setFile( $file );
  61                 $this->displayImg = $file;
  62                 $this->fileLoaded = true;
  63         }
  64
  65         protected function loadFile() {
  66                 if ( $this->fileLoaded ) {
  67                         return;
  68                 }
  69                 $this->fileLoaded = true;
  70
  71                 $this->displayImg = $img = false;
  72
  73                 Hooks::run( 'ImagePageFindFile', [ $this, &$img, &$this->displayImg ] );
  74                 if ( !$img ) { // not set by hook?
  75                         $img = wfFindFile( $this->getTitle() );
  76                         if ( !$img ) {
  77                                 $img = wfLocalFile( $this->getTitle() );
  78                         }
  79                 }
  80                 $this->mPage->setFile( $img );
  81                 if ( !$this->displayImg ) { // not set by hook?
  82                         $this->displayImg = $img;
  83                 }
  84                 $this->repo = $img->getRepo();
  85         }
  86
  87         /**
  88          * Handler for action=render
  89          * Include body text only; none of the image extras
  90          */
  91         public function render() {
  92                 $this->getContext()->getOutput()->setArticleBodyOnly( true );
  93                 parent::view();
  94         }
  95
  96         public function view() {
  97                 global $wgShowEXIF;
  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                                 // mTitle is the same as the redirect target so ask Article
 117                                 // to perform the redirect for us.
 118                                 $request->setVal( 'diffonly', 'true' );
 119                                 parent::view();
 120                                 return;
 121                         } else {
 122                                 // mTitle is not the same as the redirect target so it is
 123                                 // probably the redirect page itself. Fake the redirect symbol
 124                                 $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 125                                 $out->addHTML( $this->viewRedirect(
 126                                         Title::makeTitle( NS_FILE, $this->mPage->getFile()->getName() ),
 127                                         /* $appendSubtitle */ true,
 128                                         /* $forceKnown */ true )
 129                                 );
 130                                 $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 131                                 return;
 132                         }
 133                 }
 134
 135                 if ( $wgShowEXIF && $this->displayImg->exists() ) {
 136                         // @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 137                         $formattedMetadata = $this->displayImg->formatMetadata( $this->getContext() );
 138                         $showmeta = $formattedMetadata !== false;
 139                 } else {
 140                         $showmeta = false;
 141                 }
 142
 143                 if ( !$diff && $this->displayImg->exists() ) {
 144                         $out->addHTML( $this->showTOC( $showmeta ) );
 145                 }
 146
 147                 if ( !$diff ) {
 148                         $this->openShowImage();
 149                 }
 150
 151                 # No need to display noarticletext, we use our own message, output in openShowImage()
 152                 if ( $this->mPage->getId() ) {
 153                         # NS_FILE is in the user language, but this section (the actual wikitext)
 154                         # should be in page content language
 155                         $pageLang = $this->getTitle()->getPageViewLanguage();
 156                         $out->addHTML( Xml::openElement( 'div', [ 'id' => 'mw-imagepage-content',
 157                                 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
 158                                 'class' => 'mw-content-' . $pageLang->getDir() ] ) );
 159
 160                         parent::view();
 161
 162                         $out->addHTML( Xml::closeElement( 'div' ) );
 163                 } else {
 164                         # Just need to set the right headers
 165                         $out->setArticleFlag( true );
 166                         $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 167                         $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 168                 }
 169
 170                 # Show shared description, if needed
 171                 if ( $this->mExtraDescription ) {
 172                         $fol = $this->getContext()->msg( 'shareddescriptionfollows' );
 173                         if ( !$fol->isDisabled() ) {
 174                                 $out->addWikiText( $fol->plain() );
 175                         }
 176                         $out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
 177                 }
 178
 179                 $this->closeShowImage();
 180                 $this->imageHistory();
 181                 // TODO: Cleanup the following
 182
 183                 $out->addHTML( Xml::element( 'h2',
 184                         [ 'id' => 'filelinks' ],
 185                                 $this->getContext()->msg( 'imagelinks' )->text() ) . "\n" );
 186                 $this->imageDupes();
 187                 # @todo FIXME: For some freaky reason, we can't redirect to foreign images.
 188                 # Yet we return metadata about the target. Definitely an issue in the FileRepo
 189                 $this->imageLinks();
 190
 191                 # Allow extensions to add something after the image links
 192                 $html = '';
 193                 Hooks::run( 'ImagePageAfterImageLinks', [ $this, &$html ] );
 194                 if ( $html ) {
 195                         $out->addHTML( $html );
 196                 }
 197
 198                 if ( $showmeta ) {
 199                         $out->addHTML( Xml::element(
 200                                 'h2',
 201                                 [ 'id' => 'metadata' ],
 202                                         $this->getContext()->msg( 'metadata' )->text() ) . "\n" );
 203                         $out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
 204                         $out->addModules( [ 'mediawiki.action.view.metadata' ] );
 205                 }
 206
 207                 // Add remote Filepage.css
 208                 if ( !$this->repo->isLocal() ) {
 209                         $css = $this->repo->getDescriptionStylesheetUrl();
 210                         if ( $css ) {
 211                                 $out->addStyle( $css );
 212                         }
 213                 }
 214
 215                 $out->addModuleStyles( [
 216                         'filepage', // always show the local local Filepage.css, T31277
 217                         'mediawiki.action.view.filepage', // Add MediaWiki styles for a file page
 218                 ] );
 219         }
 220
 221         /**
 222          * @return File
 223          */
 224         public function getDisplayedFile() {
 225                 $this->loadFile();
 226                 return $this->displayImg;
 227         }
 228
 229         /**
 230          * Create the TOC
 231          *
 232          * @param bool $metadata Whether or not to show the metadata link
 233          * @return string
 234          */
 235         protected function showTOC( $metadata ) {
 236                 $r = [
 237                         '<li><a href="#file">' . $this->getContext()->msg( 'file-anchor-link' )->escaped() . '</a></li>',
 238                         '<li><a href="#filehistory">' . $this->getContext()->msg( 'filehist' )->escaped() . '</a></li>',
 239                         '<li><a href="#filelinks">' . $this->getContext()->msg( 'imagelinks' )->escaped() . '</a></li>',
 240                 ];
 241
 242                 Hooks::run( 'ImagePageShowTOC', [ $this, &$r ] );
 243
 244                 if ( $metadata ) {
 245                         $r[] = '<li><a href="#metadata">' .
 246                                 $this->getContext()->msg( 'metadata' )->escaped() .
 247                                 '</a></li>';
 248                 }
 249
 250                 return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
 251         }
 252
 253         /**
 254          * Make a table with metadata to be shown in the output page.
 255          *
 256          * @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 257          *
 258          * @param array $metadata The array containing the Exif data
 259          * @return string The metadata table. This is treated as Wikitext (!)
 260          */
 261         protected function makeMetadataTable( $metadata ) {
 262                 $r = "<div class=\"mw-imagepage-section-metadata\">";
 263                 $r .= $this->getContext()->msg( 'metadata-help' )->plain();
 264                 $r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
 265                 foreach ( $metadata as $type => $stuff ) {
 266                         foreach ( $stuff as $v ) {
 267                                 # @todo FIXME: Why is this using escapeId for a class?!
 268                                 $class = Sanitizer::escapeId( $v['id'] );
 269                                 if ( $type == 'collapsed' ) {
 270                                         // Handled by mediawiki.action.view.metadata module.
 271                                         $class .= ' collapsable';
 272                                 }
 273                                 $r .= "<tr class=\"$class\">\n";
 274                                 $r .= "<th>{$v['name']}</th>\n";
 275                                 $r .= "<td>{$v['value']}</td>\n</tr>";
 276                         }
 277                 }
 278                 $r .= "</table>\n</div>\n";
 279                 return $r;
 280         }
 281
 282         /**
 283          * Overloading Article's getContentObject method.
 284          *
 285          * Omit noarticletext if sharedupload; text will be fetched from the
 286          * shared upload server if possible.
 287          * @return string
 288          */
 289         public function getContentObject() {
 290                 $this->loadFile();
 291                 if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getId() ) {
 292                         return null;
 293                 }
 294                 return parent::getContentObject();
 295         }
 296
 297         protected function openShowImage() {
 298                 global $wgEnableUploads, $wgSend404Code, $wgSVGMaxSize;
 299
 300                 $this->loadFile();
 301                 $out = $this->getContext()->getOutput();
 302                 $user = $this->getContext()->getUser();
 303                 $lang = $this->getContext()->getLanguage();
 304                 $dirmark = $lang->getDirMarkEntity();
 305                 $request = $this->getContext()->getRequest();
 306
 307                 $max = $this->getImageLimitsFromOption( $user, 'imagesize' );
 308                 $maxWidth = $max[0];
 309                 $maxHeight = $max[1];
 310
 311                 if ( $this->displayImg->exists() ) {
 312                         # image
 313                         $page = $request->getIntOrNull( 'page' );
 314                         if ( is_null( $page ) ) {
 315                                 $params = [];
 316                                 $page = 1;
 317                         } else {
 318                                 $params = [ 'page' => $page ];
 319                         }
 320
 321                         $renderLang = $request->getVal( 'lang' );
 322                         if ( !is_null( $renderLang ) ) {
 323                                 $handler = $this->displayImg->getHandler();
 324                                 if ( $handler && $handler->validateParam( 'lang', $renderLang ) ) {
 325                                         $params['lang'] = $renderLang;
 326                                 } else {
 327                                         $renderLang = null;
 328                                 }
 329                         }
 330
 331                         $width_orig = $this->displayImg->getWidth( $page );
 332                         $width = $width_orig;
 333                         $height_orig = $this->displayImg->getHeight( $page );
 334                         $height = $height_orig;
 335
 336                         $filename = wfEscapeWikiText( $this->displayImg->getName() );
 337                         $linktext = $filename;
 338
 339                         // Avoid PHP 7.1 warning from passing $this by reference
 340                         $imagePage = $this;
 341
 342                         Hooks::run( 'ImageOpenShowImageInlineBefore', [ &$imagePage, &$out ] );
 343
 344                         if ( $this->displayImg->allowInlineDisplay() ) {
 345                                 # image
 346                                 # "Download high res version" link below the image
 347                                 # $msgsize = $this->getContext()->msg( 'file-info-size', $width_orig, $height_orig,
 348                                 #   Linker::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
 349                                 # We'll show a thumbnail of this image
 350                                 if ( $width > $maxWidth || $height > $maxHeight || $this->displayImg->isVectorized() ) {
 351                                         list( $width, $height ) = $this->getDisplayWidthHeight(
 352                                                 $maxWidth, $maxHeight, $width, $height
 353                                         );
 354                                         $linktext = $this->getContext()->msg( 'show-big-image' )->escaped();
 355
 356                                         $thumbSizes = $this->getThumbSizes( $width_orig, $height_orig );
 357                                         # Generate thumbnails or thumbnail links as needed...
 358                                         $otherSizes = [];
 359                                         foreach ( $thumbSizes as $size ) {
 360                                                 // We include a thumbnail size in the list, if it is
 361                                                 // less than or equal to the original size of the image
 362                                                 // asset ($width_orig/$height_orig). We also exclude
 363                                                 // the current thumbnail's size ($width/$height)
 364                                                 // since that is added to the message separately, so
 365                                                 // it can be denoted as the current size being shown.
 366                                                 // Vectorized images are limited by $wgSVGMaxSize big,
 367                                                 // so all thumbs less than or equal that are shown.
 368                                                 if ( ( ( $size[0] <= $width_orig && $size[1] <= $height_orig )
 369                                                                 || ( $this->displayImg->isVectorized()
 370                                                                         && max( $size[0], $size[1] ) <= $wgSVGMaxSize )
 371                                                         )
 372                                                         && $size[0] != $width && $size[1] != $height
 373                                                 ) {
 374                                                         $sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
 375                                                         if ( $sizeLink ) {
 376                                                                 $otherSizes[] = $sizeLink;
 377                                                         }
 378                                                 }
 379                                         }
 380                                         $otherSizes = array_unique( $otherSizes );
 381
 382                                         $sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
 383                                         $msgsmall = $this->getThumbPrevText( $params, $sizeLinkBigImagePreview );
 384                                         if ( count( $otherSizes ) ) {
 385                                                 $msgsmall .= ' ' .
 386                                                 Html::rawElement(
 387                                                         'span',
 388                                                         [ 'class' => 'mw-filepage-other-resolutions' ],
 389                                                         $this->getContext()->msg( 'show-big-image-other' )
 390                                                                 ->rawParams( $lang->pipeList( $otherSizes ) )
 391                                                                 ->params( count( $otherSizes ) )
 392                                                                 ->parse()
 393                                                 );
 394                                         }
 395                                 } elseif ( $width == 0 && $height == 0 ) {
 396                                         # Some sort of audio file that doesn't have dimensions
 397                                         # Don't output a no hi res message for such a file
 398                                         $msgsmall = '';
 399                                 } else {
 400                                         # Image is small enough to show full size on image page
 401                                         $msgsmall = $this->getContext()->msg( 'file-nohires' )->parse();
 402                                 }
 403
 404                                 $params['width'] = $width;
 405                                 $params['height'] = $height;
 406                                 $thumbnail = $this->displayImg->transform( $params );
 407                                 Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
 408
 409                                 $anchorclose = Html::rawElement(
 410                                         'div',
 411                                         [ 'class' => 'mw-filepage-resolutioninfo' ],
 412                                         $msgsmall
 413                                 );
 414
 415                                 $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
 416                                 if ( $isMulti ) {
 417                                         $out->addModules( 'mediawiki.page.image.pagination' );
 418                                         $out->addHTML( '<table class="multipageimage"><tr><td>' );
 419                                 }
 420
 421                                 if ( $thumbnail ) {
 422                                         $options = [
 423                                                 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
 424                                                 'file-link' => true,
 425                                         ];
 426                                         $out->addHTML( '<div class="fullImageLink" id="file">' .
 427                                                 $thumbnail->toHtml( $options ) .
 428                                                 $anchorclose . "</div>\n" );
 429                                 }
 430
 431                                 if ( $isMulti ) {
 432                                         $count = $this->displayImg->pageCount();
 433
 434                                         if ( $page > 1 ) {
 435                                                 $label = $out->parse( $this->getContext()->msg( 'imgmultipageprev' )->text(), false );
 436                                                 // on the client side, this link is generated in ajaxifyPageNavigation()
 437                                                 // in the mediawiki.page.image.pagination module
 438                                                 $link = Linker::linkKnown(
 439                                                         $this->getTitle(),
 440                                                         $label,
 441                                                         [],
 442                                                         [ 'page' => $page - 1 ]
 443                                                 );
 444                                                 $thumb1 = Linker::makeThumbLinkObj(
 445                                                         $this->getTitle(),
 446                                                         $this->displayImg,
 447                                                         $link,
 448                                                         $label,
 449                                                         'none',
 450                                                         [ 'page' => $page - 1 ]
 451                                                 );
 452                                         } else {
 453                                                 $thumb1 = '';
 454                                         }
 455
 456                                         if ( $page < $count ) {
 457                                                 $label = $this->getContext()->msg( 'imgmultipagenext' )->text();
 458                                                 $link = Linker::linkKnown(
 459                                                         $this->getTitle(),
 460                                                         $label,
 461                                                         [],
 462                                                         [ 'page' => $page + 1 ]
 463                                                 );
 464                                                 $thumb2 = Linker::makeThumbLinkObj(
 465                                                         $this->getTitle(),
 466                                                         $this->displayImg,
 467                                                         $link,
 468                                                         $label,
 469                                                         'none',
 470                                                         [ 'page' => $page + 1 ]
 471                                                 );
 472                                         } else {
 473                                                 $thumb2 = '';
 474                                         }
 475
 476                                         global $wgScript;
 477
 478                                         $formParams = [
 479                                                 'name' => 'pageselector',
 480                                                 'action' => $wgScript,
 481                                         ];
 482                                         $options = [];
 483                                         for ( $i = 1; $i <= $count; $i++ ) {
 484                                                 $options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
 485                                         }
 486                                         $select = Xml::tags( 'select',
 487                                                 [ 'id' => 'pageselector', 'name' => 'page' ],
 488                                                 implode( "\n", $options ) );
 489
 490                                         $out->addHTML(
 491                                                 '</td><td><div class="multipageimagenavbox">' .
 492                                                 Xml::openElement( 'form', $formParams ) .
 493                                                 Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
 494                                                 $this->getContext()->msg( 'imgmultigoto' )->rawParams( $select )->parse() .
 495                                                 Xml::submitButton( $this->getContext()->msg( 'imgmultigo' )->text() ) .
 496                                                 Xml::closeElement( 'form' ) .
 497                                                 "<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
 498                                         );
 499                                 }
 500                         } elseif ( $this->displayImg->isSafeFile() ) {
 501                                 # if direct link is allowed but it's not a renderable image, show an icon.
 502                                 $icon = $this->displayImg->iconThumb();
 503
 504                                 $out->addHTML( '<div class="fullImageLink" id="file">' .
 505                                         $icon->toHtml( [ 'file-link' => true ] ) .
 506                                         "</div>\n" );
 507                         }
 508
 509                         $longDesc = $this->getContext()->msg( 'parentheses', $this->displayImg->getLongDesc() )->text();
 510
 511                         $handler = $this->displayImg->getHandler();
 512
 513                         // If this is a filetype with potential issues, warn the user.
 514                         if ( $handler ) {
 515                                 $warningConfig = $handler->getWarningConfig( $this->displayImg );
 516
 517                                 if ( $warningConfig !== null ) {
 518                                         // The warning will be displayed via CSS and JavaScript.
 519                                         // We just need to tell the client side what message to use.
 520                                         $output = $this->getContext()->getOutput();
 521                                         $output->addJsConfigVars( 'wgFileWarning', $warningConfig );
 522                                         $output->addModules( $warningConfig['module'] );
 523                                         $output->addModules( 'mediawiki.filewarning' );
 524                                 }
 525                         }
 526
 527                         $medialink = "[[Media:$filename|$linktext]]";
 528
 529                         if ( !$this->displayImg->isSafeFile() ) {
 530                                 $warning = $this->getContext()->msg( 'mediawarning' )->plain();
 531                                 // dirmark is needed here to separate the file name, which
 532                                 // most likely ends in Latin characters, from the description,
 533                                 // which may begin with the file type. In RTL environment
 534                                 // this will get messy.
 535                                 // The dirmark, however, must not be immediately adjacent
 536                                 // to the filename, because it can get copied with it.
 537                                 // See T27277.
 538                                 // @codingStandardsIgnoreStart Ignore long line
 539                                 $out->addWikiText( <<<EOT
 540 <div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
 541 <div class="mediaWarning">$warning</div>
 542 EOT
 543                                 );
 544                                 // @codingStandardsIgnoreEnd
 545                         } else {
 546                                 $out->addWikiText( <<<EOT
 547 <div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
 548 </div>
 549 EOT
 550                                 );
 551                         }
 552
 553                         $renderLangOptions = $this->displayImg->getAvailableLanguages();
 554                         if ( count( $renderLangOptions ) >= 1 ) {
 555                                 $currentLanguage = $renderLang;
 556                                 $defaultLang = $this->displayImg->getDefaultRenderLanguage();
 557                                 if ( is_null( $currentLanguage ) ) {
 558                                         $currentLanguage = $defaultLang;
 559                                 }
 560                                 $out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $currentLanguage, $defaultLang ) );
 561                         }
 562
 563                         // Add cannot animate thumbnail warning
 564                         if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
 565                                 // Include the extension so wiki admins can
 566                                 // customize it on a per file-type basis
 567                                 // (aka say things like use format X instead).
 568                                 // additionally have a specific message for
 569                                 // file-no-thumb-animation-gif
 570                                 $ext = $this->displayImg->getExtension();
 571                                 $noAnimMesg = wfMessageFallback(
 572                                         'file-no-thumb-animation-' . $ext,
 573                                         'file-no-thumb-animation'
 574                                 )->plain();
 575
 576                                 $out->addWikiText( <<<EOT
 577 <div class="mw-noanimatethumb">{$noAnimMesg}</div>
 578 EOT
 579                                 );
 580                         }
 581
 582                         if ( !$this->displayImg->isLocal() ) {
 583                                 $this->printSharedImageText();
 584                         }
 585                 } else {
 586                         # Image does not exist
 587                         if ( !$this->getId() ) {
 588                                 $dbr = wfGetDB( DB_REPLICA );
 589
 590                                 # No article exists either
 591                                 # Show deletion log to be consistent with normal articles
 592                                 LogEventsList::showLogExtract(
 593                                         $out,
 594                                         [ 'delete', 'move' ],
 595                                         $this->getTitle()->getPrefixedText(),
 596                                         '',
 597                                         [ 'lim' => 10,
 598                                                 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
 599                                                 'showIfEmpty' => false,
 600                                                 'msgKey' => [ 'moveddeleted-notice' ]
 601                                         ]
 602                                 );
 603                         }
 604
 605                         if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
 606                                 // Only show an upload link if the user can upload
 607                                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 608                                 $nofile = [
 609                                         'filepage-nofile-link',
 610                                         $uploadTitle->getFullURL( [ 'wpDestFile' => $this->mPage->getFile()->getName() ] )
 611                                 ];
 612                         } else {
 613                                 $nofile = 'filepage-nofile';
 614                         }
 615                         // Note, if there is an image description page, but
 616                         // no image, then this setRobotPolicy is overridden
 617                         // by Article::View().
 618                         $out->setRobotPolicy( 'noindex,nofollow' );
 619                         $out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
 620                         if ( !$this->getId() && $wgSend404Code ) {
 621                                 // If there is no image, no shared image, and no description page,
 622                                 // output a 404, to be consistent with Article::showMissingArticle.
 623                                 $request->response()->statusHeader( 404 );
 624                         }
 625                 }
 626                 $out->setFileVersion( $this->displayImg );
 627         }
 628
 629         /**
 630          * Make the text under the image to say what size preview
 631          *
 632          * @param $params array parameters for thumbnail
 633          * @param $sizeLinkBigImagePreview HTML for the current size
 634          * @return string HTML output
 635          */
 636         private function getThumbPrevText( $params, $sizeLinkBigImagePreview ) {
 637                 if ( $sizeLinkBigImagePreview ) {
 638                         // Show a different message of preview is different format from original.
 639                         $previewTypeDiffers = false;
 640                         $origExt = $thumbExt = $this->displayImg->getExtension();
 641                         if ( $this->displayImg->getHandler() ) {
 642                                 $origMime = $this->displayImg->getMimeType();
 643                                 $typeParams = $params;
 644                                 $this->displayImg->getHandler()->normaliseParams( $this->displayImg, $typeParams );
 645                                 list( $thumbExt, $thumbMime ) = $this->displayImg->getHandler()->getThumbType(
 646                                         $origExt, $origMime, $typeParams );
 647                                 if ( $thumbMime !== $origMime ) {
 648                                         $previewTypeDiffers = true;
 649                                 }
 650                         }
 651                         if ( $previewTypeDiffers ) {
 652                                 return $this->getContext()->msg( 'show-big-image-preview-differ' )->
 653                                         rawParams( $sizeLinkBigImagePreview )->
 654                                         params( strtoupper( $origExt ) )->
 655                                         params( strtoupper( $thumbExt ) )->
 656                                         parse();
 657                         } else {
 658                                 return $this->getContext()->msg( 'show-big-image-preview' )->
 659                                         rawParams( $sizeLinkBigImagePreview )->
 660                                 parse();
 661                         }
 662                 } else {
 663                         return '';
 664                 }
 665         }
 666
 667         /**
 668          * Creates an thumbnail of specified size and returns an HTML link to it
 669          * @param array $params Scaler parameters
 670          * @param int $width
 671          * @param int $height
 672          * @return string
 673          */
 674         private function makeSizeLink( $params, $width, $height ) {
 675                 $params['width'] = $width;
 676                 $params['height'] = $height;
 677                 $thumbnail = $this->displayImg->transform( $params );
 678                 if ( $thumbnail && !$thumbnail->isError() ) {
 679                         return Html::rawElement( 'a', [
 680                                 'href' => $thumbnail->getUrl(),
 681                                 'class' => 'mw-thumbnail-link'
 682                                 ], $this->getContext()->msg( 'show-big-image-size' )->numParams(
 683                                         $thumbnail->getWidth(), $thumbnail->getHeight()
 684                                 )->parse() );
 685                 } else {
 686                         return '';
 687                 }
 688         }
 689
 690         /**
 691          * Show a notice that the file is from a shared repository
 692          */
 693         protected function printSharedImageText() {
 694                 $out = $this->getContext()->getOutput();
 695                 $this->loadFile();
 696
 697                 $descUrl = $this->mPage->getFile()->getDescriptionUrl();
 698                 $descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
 699
 700                 /* Add canonical to head if there is no local page for this shared file */
 701                 if ( $descUrl && $this->mPage->getId() == 0 ) {
 702                         $out->setCanonicalUrl( $descUrl );
 703                 }
 704
 705                 $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
 706                 $repo = $this->mPage->getFile()->getRepo()->getDisplayName();
 707
 708                 if ( $descUrl &&
 709                         $descText &&
 710                         $this->getContext()->msg( 'sharedupload-desc-here' )->plain() !== '-'
 711                 ) {
 712                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-here', $repo, $descUrl ] );
 713                 } elseif ( $descUrl &&
 714                         $this->getContext()->msg( 'sharedupload-desc-there' )->plain() !== '-'
 715                 ) {
 716                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-there', $repo, $descUrl ] );
 717                 } else {
 718                         $out->wrapWikiMsg( $wrap, [ 'sharedupload', $repo ], ''/*BACKCOMPAT*/ );
 719                 }
 720
 721                 if ( $descText ) {
 722                         $this->mExtraDescription = $descText;
 723                 }
 724         }
 725
 726         public function getUploadUrl() {
 727                 $this->loadFile();
 728                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 729                 return $uploadTitle->getFullURL( [
 730                         'wpDestFile' => $this->mPage->getFile()->getName(),
 731                         'wpForReUpload' => 1
 732                 ] );
 733         }
 734
 735         /**
 736          * Print out the various links at the bottom of the image page, e.g. reupload,
 737          * external editing (and instructions link) etc.
 738          */
 739         protected function uploadLinksBox() {
 740                 global $wgEnableUploads;
 741
 742                 if ( !$wgEnableUploads ) {
 743                         return;
 744                 }
 745
 746                 $this->loadFile();
 747                 if ( !$this->mPage->getFile()->isLocal() ) {
 748                         return;
 749                 }
 750
 751                 $out = $this->getContext()->getOutput();
 752                 $out->addHTML( "<ul>\n" );
 753
 754                 # "Upload a new version of this file" link
 755                 $canUpload = $this->getTitle()->quickUserCan( 'upload', $this->getContext()->getUser() );
 756                 if ( $canUpload && UploadBase::userCanReUpload(
 757                                 $this->getContext()->getUser(),
 758                                 $this->mPage->getFile() )
 759                 ) {
 760                         $ulink = Linker::makeExternalLink(
 761                                 $this->getUploadUrl(),
 762                                 $this->getContext()->msg( 'uploadnewversion-linktext' )->text()
 763                         );
 764                         $out->addHTML( "<li id=\"mw-imagepage-reupload-link\">"
 765                                 . "<div class=\"plainlinks\">{$ulink}</div></li>\n" );
 766                 } else {
 767                         $out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">"
 768                                 . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
 769                 }
 770
 771                 $out->addHTML( "</ul>\n" );
 772         }
 773
 774         /**
 775          * For overloading
 776          */
 777         protected function closeShowImage() {
 778         }
 779
 780         /**
 781          * If the page we've just displayed is in the "Image" namespace,
 782          * we follow it with an upload history of the image and its usage.
 783          */
 784         protected function imageHistory() {
 785                 $this->loadFile();
 786                 $out = $this->getContext()->getOutput();
 787                 $pager = new ImageHistoryPseudoPager( $this );
 788                 $out->addHTML( $pager->getBody() );
 789                 $out->preventClickjacking( $pager->getPreventClickjacking() );
 790
 791                 $this->mPage->getFile()->resetHistory(); // free db resources
 792
 793                 # Exist check because we don't want to show this on pages where an image
 794                 # doesn't exist along with the noimage message, that would suck. -ævar
 795                 if ( $this->mPage->getFile()->exists() ) {
 796                         $this->uploadLinksBox();
 797                 }
 798         }
 799
 800         /**
 801          * @param string $target
 802          * @param int $limit
 803          * @return ResultWrapper
 804          */
 805         protected function queryImageLinks( $target, $limit ) {
 806                 $dbr = wfGetDB( DB_REPLICA );
 807
 808                 return $dbr->select(
 809                         [ 'imagelinks', 'page' ],
 810                         [ 'page_namespace', 'page_title', 'il_to' ],
 811                         [ 'il_to' => $target, 'il_from = page_id' ],
 812                         __METHOD__,
 813                         [ 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', ]
 814                 );
 815         }
 816
 817         protected function imageLinks() {
 818                 $limit = 100;
 819
 820                 $out = $this->getContext()->getOutput();
 821
 822                 $rows = [];
 823                 $redirects = [];
 824                 foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
 825                         $redirects[$redir->getDBkey()] = [];
 826                         $rows[] = (object)[
 827                                 'page_namespace' => NS_FILE,
 828                                 'page_title' => $redir->getDBkey(),
 829                         ];
 830                 }
 831
 832                 $res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
 833                 foreach ( $res as $row ) {
 834                         $rows[] = $row;
 835                 }
 836                 $count = count( $rows );
 837
 838                 $hasMore = $count > $limit;
 839                 if ( !$hasMore && count( $redirects ) ) {
 840                         $res = $this->queryImageLinks( array_keys( $redirects ),
 841                                 $limit - count( $rows ) + 1 );
 842                         foreach ( $res as $row ) {
 843                                 $redirects[$row->il_to][] = $row;
 844                                 $count++;
 845                         }
 846                         $hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
 847                 }
 848
 849                 if ( $count == 0 ) {
 850                         $out->wrapWikiMsg(
 851                                 Html::rawElement( 'div',
 852                                         [ 'id' => 'mw-imagepage-nolinkstoimage' ], "\n$1\n" ),
 853                                 'nolinkstoimage'
 854                         );
 855                         return;
 856                 }
 857
 858                 $out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
 859                 if ( !$hasMore ) {
 860                         $out->addWikiMsg( 'linkstoimage', $count );
 861                 } else {
 862                         // More links than the limit. Add a link to [[Special:Whatlinkshere]]
 863                         $out->addWikiMsg( 'linkstoimage-more',
 864                                 $this->getContext()->getLanguage()->formatNum( $limit ),
 865                                 $this->getTitle()->getPrefixedDBkey()
 866                         );
 867                 }
 868
 869                 $out->addHTML(
 870                         Html::openElement( 'ul',
 871                                 [ 'class' => 'mw-imagepage-linkstoimage' ] ) . "\n"
 872                 );
 873                 $count = 0;
 874
 875                 // Sort the list by namespace:title
 876                 usort( $rows, [ $this, 'compare' ] );
 877
 878                 // Create links for every element
 879                 $currentCount = 0;
 880                 foreach ( $rows as $element ) {
 881                         $currentCount++;
 882                         if ( $currentCount > $limit ) {
 883                                 break;
 884                         }
 885
 886                         $query = [];
 887                         # Add a redirect=no to make redirect pages reachable
 888                         if ( isset( $redirects[$element->page_title] ) ) {
 889                                 $query['redirect'] = 'no';
 890                         }
 891                         $link = Linker::linkKnown(
 892                                 Title::makeTitle( $element->page_namespace, $element->page_title ),
 893                                 null, [], $query
 894                         );
 895                         if ( !isset( $redirects[$element->page_title] ) ) {
 896                                 # No redirects
 897                                 $liContents = $link;
 898                         } elseif ( count( $redirects[$element->page_title] ) === 0 ) {
 899                                 # Redirect without usages
 900                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )
 901                                         ->rawParams( $link, '' )
 902                                         ->parse();
 903                         } else {
 904                                 # Redirect with usages
 905                                 $li = '';
 906                                 foreach ( $redirects[$element->page_title] as $row ) {
 907                                         $currentCount++;
 908                                         if ( $currentCount > $limit ) {
 909                                                 break;
 910                                         }
 911
 912                                         $link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
 913                                         $li .= Html::rawElement(
 914                                                 'li',
 915                                                 [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 916                                                 $link2
 917                                                 ) . "\n";
 918                                 }
 919
 920                                 $ul = Html::rawElement(
 921                                         'ul',
 922                                         [ 'class' => 'mw-imagepage-redirectstofile' ],
 923                                         $li
 924                                         ) . "\n";
 925                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )->rawParams(
 926                                         $link, $ul )->parse();
 927                         }
 928                         $out->addHTML( Html::rawElement(
 929                                         'li',
 930                                         [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 931                                         $liContents
 932                                 ) . "\n"
 933                         );
 934
 935                 };
 936                 $out->addHTML( Html::closeElement( 'ul' ) . "\n" );
 937                 $res->free();
 938
 939                 // Add a links to [[Special:Whatlinkshere]]
 940                 if ( $count > $limit ) {
 941                         $out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
 942                 }
 943                 $out->addHTML( Html::closeElement( 'div' ) . "\n" );
 944         }
 945
 946         protected function imageDupes() {
 947                 $this->loadFile();
 948                 $out = $this->getContext()->getOutput();
 949
 950                 $dupes = $this->mPage->getDuplicates();
 951                 if ( count( $dupes ) == 0 ) {
 952                         return;
 953                 }
 954
 955                 $out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
 956                 $out->addWikiMsg( 'duplicatesoffile',
 957                         $this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
 958                 );
 959                 $out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 960
 961                 /**
 962                  * @var $file File
 963                  */
 964                 foreach ( $dupes as $file ) {
 965                         $fromSrc = '';
 966                         if ( $file->isLocal() ) {
 967                                 $link = Linker::linkKnown( $file->getTitle() );
 968                         } else {
 969                                 $link = Linker::makeExternalLink( $file->getDescriptionUrl(),
 970                                         $file->getTitle()->getPrefixedText() );
 971                                 $fromSrc = $this->getContext()->msg(
 972                                         'shared-repo-from',
 973                                         $file->getRepo()->getDisplayName()
 974                                 )->text();
 975                         }
 976                         $out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
 977                 }
 978                 $out->addHTML( "</ul></div>\n" );
 979         }
 980
 981         /**
 982          * Delete the file, or an earlier version of it
 983          */
 984         public function delete() {
 985                 $file = $this->mPage->getFile();
 986                 if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
 987                         // Standard article deletion
 988                         parent::delete();
 989                         return;
 990                 }
 991
 992                 $deleter = new FileDeleteForm( $file );
 993                 $deleter->execute();
 994         }
 995
 996         /**
 997          * Display an error with a wikitext description
 998          *
 999          * @param string $description
1000          */
1001         function showError( $description ) {
1002                 $out = $this->getContext()->getOutput();
1003                 $out->setPageTitle( $this->getContext()->msg( 'internalerror' ) );
1004                 $out->setRobotPolicy( 'noindex,nofollow' );
1005                 $out->setArticleRelated( false );
1006                 $out->enableClientCache( false );
1007                 $out->addWikiText( $description );
1008         }
1009
1010         /**
1011          * Callback for usort() to do link sorts by (namespace, title)
1012          * Function copied from Title::compare()
1013          *
1014          * @param object $a Object page to compare with
1015          * @param object $b Object page to compare with
1016          * @return int Result of string comparison, or namespace comparison
1017          */
1018         protected function compare( $a, $b ) {
1019                 if ( $a->page_namespace == $b->page_namespace ) {
1020                         return strcmp( $a->page_title, $b->page_title );
1021                 } else {
1022                         return $a->page_namespace - $b->page_namespace;
1023                 }
1024         }
1025
1026         /**
1027          * Returns the corresponding $wgImageLimits entry for the selected user option
1028          *
1029          * @param User $user
1030          * @param string $optionName Name of a option to check, typically imagesize or thumbsize
1031          * @return array
1032          * @since 1.21
1033          */
1034         public function getImageLimitsFromOption( $user, $optionName ) {
1035                 global $wgImageLimits;
1036
1037                 $option = $user->getIntOption( $optionName );
1038                 if ( !isset( $wgImageLimits[$option] ) ) {
1039                         $option = User::getDefaultOption( $optionName );
1040                 }
1041
1042                 // The user offset might still be incorrect, specially if
1043                 // $wgImageLimits got changed (see bug #8858).
1044                 if ( !isset( $wgImageLimits[$option] ) ) {
1045                         // Default to the first offset in $wgImageLimits
1046                         $option = 0;
1047                 }
1048
1049                 return isset( $wgImageLimits[$option] )
1050                         ? $wgImageLimits[$option]
1051                         : [ 800, 600 ]; // if nothing is set, fallback to a hardcoded default
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 $curLang Language code file is being viewed in.
1059          * @param string $defaultLang Language code that image is rendered in by default
1060          * @return string HTML to insert underneath image.
1061          */
1062         protected function doRenderLangOpt( array $langChoices, $curLang, $defaultLang ) {
1063                 global $wgScript;
1064                 sort( $langChoices );
1065                 $curLang = wfBCP47( $curLang );
1066                 $defaultLang = wfBCP47( $defaultLang );
1067                 $opts = '';
1068                 $haveCurrentLang = false;
1069                 $haveDefaultLang = false;
1070
1071                 // We make a list of all the language choices in the file.
1072                 // Additionally if the default language to render this file
1073                 // is not included as being in this file (for example, in svgs
1074                 // usually the fallback content is the english content) also
1075                 // include a choice for that. Last of all, if we're viewing
1076                 // the file in a language not on the list, add it as a choice.
1077                 foreach ( $langChoices as $lang ) {
1078                         $code = wfBCP47( $lang );
1079                         $name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
1080                         if ( $name !== '' ) {
1081                                 $display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
1082                         } else {
1083                                 $display = $code;
1084                         }
1085                         $opts .= "\n" . Xml::option( $display, $code, $curLang === $code );
1086                         if ( $curLang === $code ) {
1087                                 $haveCurrentLang = true;
1088                         }
1089                         if ( $defaultLang === $code ) {
1090                                 $haveDefaultLang = true;
1091                         }
1092                 }
1093                 if ( !$haveDefaultLang ) {
1094                         // Its hard to know if the content is really in the default language, or
1095                         // if its just unmarked content that could be in any language.
1096                         $opts = Xml::option(
1097                                         $this->getContext()->msg( 'img-lang-default' )->text(),
1098                                 $defaultLang,
1099                                 $defaultLang === $curLang
1100                         ) . $opts;
1101                 }
1102                 if ( !$haveCurrentLang && $defaultLang !== $curLang ) {
1103                         $name = Language::fetchLanguageName( $curLang, $this->getContext()->getLanguage()->getCode() );
1104                         if ( $name !== '' ) {
1105                                 $display = $this->getContext()->msg( 'img-lang-opt', $curLang, $name )->text();
1106                         } else {
1107                                 $display = $curLang;
1108                         }
1109                         $opts = Xml::option( $display, $curLang, true ) . $opts;
1110                 }
1111
1112                 $select = Html::rawElement(
1113                         'select',
1114                         [ 'id' => 'mw-imglangselector', 'name' => 'lang' ],
1115                         $opts
1116                 );
1117                 $submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
1118
1119                 $formContents = $this->getContext()->msg( 'img-lang-info' )
1120                         ->rawParams( $select, $submit )
1121                         ->parse();
1122                 $formContents .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
1123
1124                 $langSelectLine = Html::rawElement( 'div', [ 'id' => 'mw-imglangselector-line' ],
1125                         Html::rawElement( 'form', [ 'action' => $wgScript ], $formContents )
1126                 );
1127                 return $langSelectLine;
1128         }
1129
1130         /**
1131          * Get the width and height to display image at.
1132          *
1133          * @note This method assumes that it is only called if one
1134          *  of the dimensions are bigger than the max, or if the
1135          *  image is vectorized.
1136          *
1137          * @param int $maxWidth Max width to display at
1138          * @param int $maxHeight Max height to display at
1139          * @param int $width Actual width of the image
1140          * @param int $height Actual height of the image
1141          * @throws MWException
1142          * @return array Array (width, height)
1143          */
1144         protected function getDisplayWidthHeight( $maxWidth, $maxHeight, $width, $height ) {
1145                 if ( !$maxWidth || !$maxHeight ) {
1146                         // should never happen
1147                         throw new MWException( 'Using a choice from $wgImageLimits that is 0x0' );
1148                 }
1149
1150                 if ( !$width || !$height ) {
1151                         return [ 0, 0 ];
1152                 }
1153
1154                 # Calculate the thumbnail size.
1155                 if ( $width <= $maxWidth && $height <= $maxHeight ) {
1156                         // Vectorized image, do nothing.
1157                 } elseif ( $width / $height >= $maxWidth / $maxHeight ) {
1158                         # The limiting factor is the width, not the height.
1159                         $height = round( $height * $maxWidth / $width );
1160                         $width = $maxWidth;
1161                         # Note that $height <= $maxHeight now.
1162                 } else {
1163                         $newwidth = floor( $width * $maxHeight / $height );
1164                         $height = round( $height * $newwidth / $width );
1165                         $width = $newwidth;
1166                         # Note that $height <= $maxHeight now, but might not be identical
1167                         # because of rounding.
1168                 }
1169                 return [ $width, $height ];
1170         }
1171
1172         /**
1173          * Get alternative thumbnail sizes.
1174          *
1175          * @note This will only list several alternatives if thumbnails are rendered on 404
1176          * @param int $origWidth Actual width of image
1177          * @param int $origHeight Actual height of image
1178          * @return array An array of [width, height] pairs.
1179          */
1180         protected function getThumbSizes( $origWidth, $origHeight ) {
1181                 global $wgImageLimits;
1182                 if ( $this->displayImg->getRepo()->canTransformVia404() ) {
1183                         $thumbSizes = $wgImageLimits;
1184                         // Also include the full sized resolution in the list, so
1185                         // that users know they can get it. This will link to the
1186                         // original file asset if mustRender() === false. In the case
1187                         // that we mustRender, some users have indicated that they would
1188                         // find it useful to have the full size image in the rendered
1189                         // image format.
1190                         $thumbSizes[] = [ $origWidth, $origHeight ];
1191                 } else {
1192                         # Creating thumb links triggers thumbnail generation.
1193                         # Just generate the thumb for the current users prefs.
1194                         $thumbSizes = [
1195                                 $this->getImageLimitsFromOption( $this->getContext()->getUser(), 'thumbsize' )
1196                         ];
1197                         if ( !$this->displayImg->mustRender() ) {
1198                                 // We can safely include a link to the "full-size" preview,
1199                                 // without actually rendering.
1200                                 $thumbSizes[] = [ $origWidth, $origHeight ];
1201                         }
1202                 }
1203                 return $thumbSizes;
1204         }
1205
1206         /**
1207          * @see WikiFilePage::getFile
1208          * @return bool|File
1209          */
1210         public function getFile() {
1211                 return $this->mPage->getFile();
1212         }
1213
1214         /**
1215          * @see WikiFilePage::isLocal
1216          * @return bool
1217          */
1218         public function isLocal() {
1219                 return $this->mPage->isLocal();
1220         }
1221
1222         /**
1223          * @see WikiFilePage::getDuplicates
1224          * @return array|null
1225          */
1226         public function getDuplicates() {
1227                 return $this->mPage->getDuplicates();
1228         }
1229
1230         /**
1231          * @see WikiFilePage::getForeignCategories
1232          * @return TitleArray|Title[]
1233          */
1234         public function getForeignCategories() {
1235                 $this->mPage->getForeignCategories();
1236         }
1237
1238 }