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 Wikimedia\Rdbms\ResultWrapper;
  24
  25 /**
  26  * Class for viewing MediaWiki file description pages
  27  *
  28  * @ingroup Media
  29  */
  30 class ImagePage extends Article {
  31         /** @var File */
  32         private $displayImg;
  33
  34         /** @var FileRepo */
  35         private $repo;
  36
  37         /** @var bool */
  38         private $fileLoaded;
  39
  40         /** @var bool */
  41         protected $mExtraDescription = false;
  42
  43         /**
  44          * @var WikiFilePage
  45          */
  46         protected $mPage;
  47
  48         /**
  49          * @param Title $title
  50          * @return WikiFilePage
  51          */
  52         protected function newPage( Title $title ) {
  53                 // Overload mPage with a file-specific page
  54                 return new WikiFilePage( $title );
  55         }
  56
  57         /**
  58          * @param File $file
  59          * @return void
  60          */
  61         public function setFile( $file ) {
  62                 $this->mPage->setFile( $file );
  63                 $this->displayImg = $file;
  64                 $this->fileLoaded = true;
  65         }
  66
  67         protected function loadFile() {
  68                 if ( $this->fileLoaded ) {
  69                         return;
  70                 }
  71                 $this->fileLoaded = true;
  72
  73                 $this->displayImg = $img = false;
  74
  75                 Hooks::run( 'ImagePageFindFile', [ $this, &$img, &$this->displayImg ] );
  76                 if ( !$img ) { // not set by hook?
  77                         $img = wfFindFile( $this->getTitle() );
  78                         if ( !$img ) {
  79                                 $img = wfLocalFile( $this->getTitle() );
  80                         }
  81                 }
  82                 $this->mPage->setFile( $img );
  83                 if ( !$this->displayImg ) { // not set by hook?
  84                         $this->displayImg = $img;
  85                 }
  86                 $this->repo = $img->getRepo();
  87         }
  88
  89         /**
  90          * Handler for action=render
  91          * Include body text only; none of the image extras
  92          */
  93         public function render() {
  94                 $this->getContext()->getOutput()->setArticleBodyOnly( true );
  95                 parent::view();
  96         }
  97
  98         public function view() {
  99                 global $wgShowEXIF;
 100
 101                 $out = $this->getContext()->getOutput();
 102                 $request = $this->getContext()->getRequest();
 103                 $diff = $request->getVal( 'diff' );
 104                 $diffOnly = $request->getBool(
 105                         'diffonly',
 106                         $this->getContext()->getUser()->getOption( 'diffonly' )
 107                 );
 108
 109                 if ( $this->getTitle()->getNamespace() != NS_FILE || ( $diff !== null && $diffOnly ) ) {
 110                         parent::view();
 111                         return;
 112                 }
 113
 114                 $this->loadFile();
 115
 116                 if ( $this->getTitle()->getNamespace() == NS_FILE && $this->mPage->getFile()->getRedirected() ) {
 117                         if ( $this->getTitle()->getDBkey() == $this->mPage->getFile()->getName() || $diff !== null ) {
 118                                 $request->setVal( 'diffonly', 'true' );
 119                         }
 120
 121                         parent::view();
 122                         return;
 123                 }
 124
 125                 if ( $wgShowEXIF && $this->displayImg->exists() ) {
 126                         // @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 127                         $formattedMetadata = $this->displayImg->formatMetadata( $this->getContext() );
 128                         $showmeta = $formattedMetadata !== false;
 129                 } else {
 130                         $showmeta = false;
 131                 }
 132
 133                 if ( !$diff && $this->displayImg->exists() ) {
 134                         $out->addHTML( $this->showTOC( $showmeta ) );
 135                 }
 136
 137                 if ( !$diff ) {
 138                         $this->openShowImage();
 139                 }
 140
 141                 # No need to display noarticletext, we use our own message, output in openShowImage()
 142                 if ( $this->mPage->getId() ) {
 143                         # NS_FILE is in the user language, but this section (the actual wikitext)
 144                         # should be in page content language
 145                         $pageLang = $this->getTitle()->getPageViewLanguage();
 146                         $out->addHTML( Xml::openElement( 'div', [ 'id' => 'mw-imagepage-content',
 147                                 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
 148                                 'class' => 'mw-content-' . $pageLang->getDir() ] ) );
 149
 150                         parent::view();
 151
 152                         $out->addHTML( Xml::closeElement( 'div' ) );
 153                 } else {
 154                         # Just need to set the right headers
 155                         $out->setArticleFlag( true );
 156                         $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 157                         $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 158                 }
 159
 160                 # Show shared description, if needed
 161                 if ( $this->mExtraDescription ) {
 162                         $fol = $this->getContext()->msg( 'shareddescriptionfollows' );
 163                         if ( !$fol->isDisabled() ) {
 164                                 $out->addWikiText( $fol->plain() );
 165                         }
 166                         $out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
 167                 }
 168
 169                 $this->closeShowImage();
 170                 $this->imageHistory();
 171                 // TODO: Cleanup the following
 172
 173                 $out->addHTML( Xml::element( 'h2',
 174                         [ 'id' => 'filelinks' ],
 175                                 $this->getContext()->msg( 'imagelinks' )->text() ) . "\n" );
 176                 $this->imageDupes();
 177                 # @todo FIXME: For some freaky reason, we can't redirect to foreign images.
 178                 # Yet we return metadata about the target. Definitely an issue in the FileRepo
 179                 $this->imageLinks();
 180
 181                 # Allow extensions to add something after the image links
 182                 $html = '';
 183                 Hooks::run( 'ImagePageAfterImageLinks', [ $this, &$html ] );
 184                 if ( $html ) {
 185                         $out->addHTML( $html );
 186                 }
 187
 188                 if ( $showmeta ) {
 189                         $out->addHTML( Xml::element(
 190                                 'h2',
 191                                 [ 'id' => 'metadata' ],
 192                                         $this->getContext()->msg( 'metadata' )->text() ) . "\n" );
 193                         $out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
 194                         $out->addModules( [ 'mediawiki.action.view.metadata' ] );
 195                 }
 196
 197                 // Add remote Filepage.css
 198                 if ( !$this->repo->isLocal() ) {
 199                         $css = $this->repo->getDescriptionStylesheetUrl();
 200                         if ( $css ) {
 201                                 $out->addStyle( $css );
 202                         }
 203                 }
 204
 205                 $out->addModuleStyles( [
 206                         'filepage', // always show the local local Filepage.css, T31277
 207                         'mediawiki.action.view.filepage', // Add MediaWiki styles for a file page
 208                 ] );
 209         }
 210
 211         /**
 212          * @return File
 213          */
 214         public function getDisplayedFile() {
 215                 $this->loadFile();
 216                 return $this->displayImg;
 217         }
 218
 219         /**
 220          * Create the TOC
 221          *
 222          * @param bool $metadata Whether or not to show the metadata link
 223          * @return string
 224          */
 225         protected function showTOC( $metadata ) {
 226                 $r = [
 227                         '<li><a href="#file">' . $this->getContext()->msg( 'file-anchor-link' )->escaped() . '</a></li>',
 228                         '<li><a href="#filehistory">' . $this->getContext()->msg( 'filehist' )->escaped() . '</a></li>',
 229                         '<li><a href="#filelinks">' . $this->getContext()->msg( 'imagelinks' )->escaped() . '</a></li>',
 230                 ];
 231
 232                 Hooks::run( 'ImagePageShowTOC', [ $this, &$r ] );
 233
 234                 if ( $metadata ) {
 235                         $r[] = '<li><a href="#metadata">' .
 236                                 $this->getContext()->msg( 'metadata' )->escaped() .
 237                                 '</a></li>';
 238                 }
 239
 240                 return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
 241         }
 242
 243         /**
 244          * Make a table with metadata to be shown in the output page.
 245          *
 246          * @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 247          *
 248          * @param array $metadata The array containing the Exif data
 249          * @return string The metadata table. This is treated as Wikitext (!)
 250          */
 251         protected function makeMetadataTable( $metadata ) {
 252                 $r = "<div class=\"mw-imagepage-section-metadata\">";
 253                 $r .= $this->getContext()->msg( 'metadata-help' )->plain();
 254                 $r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
 255                 foreach ( $metadata as $type => $stuff ) {
 256                         foreach ( $stuff as $v ) {
 257                                 $class = str_replace( ' ', '_', $v['id'] );
 258                                 if ( $type == 'collapsed' ) {
 259                                         // Handled by mediawiki.action.view.metadata module.
 260                                         $class .= ' collapsable';
 261                                 }
 262                                 $r .= Html::rawElement( 'tr',
 263                                         [ 'class' => $class ],
 264                                         Html::rawElement( 'th', [], $v['name'] )
 265                                                 . Html::rawElement( 'td', [], $v['value'] )
 266                                 );
 267                         }
 268                 }
 269                 $r .= "</table>\n</div>\n";
 270                 return $r;
 271         }
 272
 273         /**
 274          * Overloading Article's getContentObject method.
 275          *
 276          * Omit noarticletext if sharedupload; text will be fetched from the
 277          * shared upload server if possible.
 278          * @return string
 279          */
 280         public function getContentObject() {
 281                 $this->loadFile();
 282                 if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getId() ) {
 283                         return null;
 284                 }
 285                 return parent::getContentObject();
 286         }
 287
 288         protected function openShowImage() {
 289                 global $wgEnableUploads, $wgSend404Code, $wgSVGMaxSize;
 290
 291                 $this->loadFile();
 292                 $out = $this->getContext()->getOutput();
 293                 $user = $this->getContext()->getUser();
 294                 $lang = $this->getContext()->getLanguage();
 295                 $dirmark = $lang->getDirMarkEntity();
 296                 $request = $this->getContext()->getRequest();
 297
 298                 $max = $this->getImageLimitsFromOption( $user, 'imagesize' );
 299                 $maxWidth = $max[0];
 300                 $maxHeight = $max[1];
 301
 302                 if ( $this->displayImg->exists() ) {
 303                         # image
 304                         $page = $request->getIntOrNull( 'page' );
 305                         if ( is_null( $page ) ) {
 306                                 $params = [];
 307                                 $page = 1;
 308                         } else {
 309                                 $params = [ 'page' => $page ];
 310                         }
 311
 312                         $renderLang = $request->getVal( 'lang' );
 313                         if ( !is_null( $renderLang ) ) {
 314                                 $handler = $this->displayImg->getHandler();
 315                                 if ( $handler && $handler->validateParam( 'lang', $renderLang ) ) {
 316                                         $params['lang'] = $renderLang;
 317                                 } else {
 318                                         $renderLang = null;
 319                                 }
 320                         }
 321
 322                         $width_orig = $this->displayImg->getWidth( $page );
 323                         $width = $width_orig;
 324                         $height_orig = $this->displayImg->getHeight( $page );
 325                         $height = $height_orig;
 326
 327                         $filename = wfEscapeWikiText( $this->displayImg->getName() );
 328                         $linktext = $filename;
 329
 330                         // Avoid PHP 7.1 warning from passing $this by reference
 331                         $imagePage = $this;
 332
 333                         Hooks::run( 'ImageOpenShowImageInlineBefore', [ &$imagePage, &$out ] );
 334
 335                         if ( $this->displayImg->allowInlineDisplay() ) {
 336                                 # image
 337                                 # "Download high res version" link below the image
 338                                 # $msgsize = $this->getContext()->msg( 'file-info-size', $width_orig, $height_orig,
 339                                 #   Linker::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
 340                                 # We'll show a thumbnail of this image
 341                                 if ( $width > $maxWidth || $height > $maxHeight || $this->displayImg->isVectorized() ) {
 342                                         list( $width, $height ) = $this->getDisplayWidthHeight(
 343                                                 $maxWidth, $maxHeight, $width, $height
 344                                         );
 345                                         $linktext = $this->getContext()->msg( 'show-big-image' )->escaped();
 346
 347                                         $thumbSizes = $this->getThumbSizes( $width_orig, $height_orig );
 348                                         # Generate thumbnails or thumbnail links as needed...
 349                                         $otherSizes = [];
 350                                         foreach ( $thumbSizes as $size ) {
 351                                                 // We include a thumbnail size in the list, if it is
 352                                                 // less than or equal to the original size of the image
 353                                                 // asset ($width_orig/$height_orig). We also exclude
 354                                                 // the current thumbnail's size ($width/$height)
 355                                                 // since that is added to the message separately, so
 356                                                 // it can be denoted as the current size being shown.
 357                                                 // Vectorized images are limited by $wgSVGMaxSize big,
 358                                                 // so all thumbs less than or equal that are shown.
 359                                                 if ( ( ( $size[0] <= $width_orig && $size[1] <= $height_orig )
 360                                                                 || ( $this->displayImg->isVectorized()
 361                                                                         && max( $size[0], $size[1] ) <= $wgSVGMaxSize )
 362                                                         )
 363                                                         && $size[0] != $width && $size[1] != $height
 364                                                 ) {
 365                                                         $sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
 366                                                         if ( $sizeLink ) {
 367                                                                 $otherSizes[] = $sizeLink;
 368                                                         }
 369                                                 }
 370                                         }
 371                                         $otherSizes = array_unique( $otherSizes );
 372
 373                                         $sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
 374                                         $msgsmall = $this->getThumbPrevText( $params, $sizeLinkBigImagePreview );
 375                                         if ( count( $otherSizes ) ) {
 376                                                 $msgsmall .= ' ' .
 377                                                 Html::rawElement(
 378                                                         'span',
 379                                                         [ 'class' => 'mw-filepage-other-resolutions' ],
 380                                                         $this->getContext()->msg( 'show-big-image-other' )
 381                                                                 ->rawParams( $lang->pipeList( $otherSizes ) )
 382                                                                 ->params( count( $otherSizes ) )
 383                                                                 ->parse()
 384                                                 );
 385                                         }
 386                                 } elseif ( $width == 0 && $height == 0 ) {
 387                                         # Some sort of audio file that doesn't have dimensions
 388                                         # Don't output a no hi res message for such a file
 389                                         $msgsmall = '';
 390                                 } else {
 391                                         # Image is small enough to show full size on image page
 392                                         $msgsmall = $this->getContext()->msg( 'file-nohires' )->parse();
 393                                 }
 394
 395                                 $params['width'] = $width;
 396                                 $params['height'] = $height;
 397                                 $thumbnail = $this->displayImg->transform( $params );
 398                                 Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
 399
 400                                 $anchorclose = Html::rawElement(
 401                                         'div',
 402                                         [ 'class' => 'mw-filepage-resolutioninfo' ],
 403                                         $msgsmall
 404                                 );
 405
 406                                 $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
 407                                 if ( $isMulti ) {
 408                                         $out->addModules( 'mediawiki.page.image.pagination' );
 409                                         $out->addHTML( '<table class="multipageimage"><tr><td>' );
 410                                 }
 411
 412                                 if ( $thumbnail ) {
 413                                         $options = [
 414                                                 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
 415                                                 'file-link' => true,
 416                                         ];
 417                                         $out->addHTML( '<div class="fullImageLink" id="file">' .
 418                                                 $thumbnail->toHtml( $options ) .
 419                                                 $anchorclose . "</div>\n" );
 420                                 }
 421
 422                                 if ( $isMulti ) {
 423                                         $count = $this->displayImg->pageCount();
 424
 425                                         if ( $page > 1 ) {
 426                                                 $label = $this->getContext()->msg( 'imgmultipageprev' )->text();
 427                                                 // on the client side, this link is generated in ajaxifyPageNavigation()
 428                                                 // in the mediawiki.page.image.pagination module
 429                                                 $link = Linker::linkKnown(
 430                                                         $this->getTitle(),
 431                                                         $label,
 432                                                         [],
 433                                                         [ 'page' => $page - 1 ]
 434                                                 );
 435                                                 $thumb1 = Linker::makeThumbLinkObj(
 436                                                         $this->getTitle(),
 437                                                         $this->displayImg,
 438                                                         $link,
 439                                                         $label,
 440                                                         'none',
 441                                                         [ 'page' => $page - 1 ]
 442                                                 );
 443                                         } else {
 444                                                 $thumb1 = '';
 445                                         }
 446
 447                                         if ( $page < $count ) {
 448                                                 $label = $this->getContext()->msg( 'imgmultipagenext' )->text();
 449                                                 $link = Linker::linkKnown(
 450                                                         $this->getTitle(),
 451                                                         $label,
 452                                                         [],
 453                                                         [ 'page' => $page + 1 ]
 454                                                 );
 455                                                 $thumb2 = Linker::makeThumbLinkObj(
 456                                                         $this->getTitle(),
 457                                                         $this->displayImg,
 458                                                         $link,
 459                                                         $label,
 460                                                         'none',
 461                                                         [ 'page' => $page + 1 ]
 462                                                 );
 463                                         } else {
 464                                                 $thumb2 = '';
 465                                         }
 466
 467                                         global $wgScript;
 468
 469                                         $formParams = [
 470                                                 'name' => 'pageselector',
 471                                                 'action' => $wgScript,
 472                                         ];
 473                                         $options = [];
 474                                         for ( $i = 1; $i <= $count; $i++ ) {
 475                                                 $options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
 476                                         }
 477                                         $select = Xml::tags( 'select',
 478                                                 [ 'id' => 'pageselector', 'name' => 'page' ],
 479                                                 implode( "\n", $options ) );
 480
 481                                         $out->addHTML(
 482                                                 '</td><td><div class="multipageimagenavbox">' .
 483                                                 Xml::openElement( 'form', $formParams ) .
 484                                                 Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
 485                                                 $this->getContext()->msg( 'imgmultigoto' )->rawParams( $select )->parse() .
 486                                                 $this->getContext()->msg( 'word-separator' )->escaped() .
 487                                                 Xml::submitButton( $this->getContext()->msg( 'imgmultigo' )->text() ) .
 488                                                 Xml::closeElement( 'form' ) .
 489                                                 "<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
 490                                         );
 491                                 }
 492                         } elseif ( $this->displayImg->isSafeFile() ) {
 493                                 # if direct link is allowed but it's not a renderable image, show an icon.
 494                                 $icon = $this->displayImg->iconThumb();
 495
 496                                 $out->addHTML( '<div class="fullImageLink" id="file">' .
 497                                         $icon->toHtml( [ 'file-link' => true ] ) .
 498                                         "</div>\n" );
 499                         }
 500
 501                         $longDesc = $this->getContext()->msg( 'parentheses', $this->displayImg->getLongDesc() )->text();
 502
 503                         $handler = $this->displayImg->getHandler();
 504
 505                         // If this is a filetype with potential issues, warn the user.
 506                         if ( $handler ) {
 507                                 $warningConfig = $handler->getWarningConfig( $this->displayImg );
 508
 509                                 if ( $warningConfig !== null ) {
 510                                         // The warning will be displayed via CSS and JavaScript.
 511                                         // We just need to tell the client side what message to use.
 512                                         $output = $this->getContext()->getOutput();
 513                                         $output->addJsConfigVars( 'wgFileWarning', $warningConfig );
 514                                         $output->addModules( $warningConfig['module'] );
 515                                         $output->addModules( 'mediawiki.filewarning' );
 516                                 }
 517                         }
 518
 519                         $medialink = "[[Media:$filename|$linktext]]";
 520
 521                         if ( !$this->displayImg->isSafeFile() ) {
 522                                 $warning = $this->getContext()->msg( 'mediawarning' )->plain();
 523                                 // dirmark is needed here to separate the file name, which
 524                                 // most likely ends in Latin characters, from the description,
 525                                 // which may begin with the file type. In RTL environment
 526                                 // this will get messy.
 527                                 // The dirmark, however, must not be immediately adjacent
 528                                 // to the filename, because it can get copied with it.
 529                                 // See T27277.
 530                                 // @codingStandardsIgnoreStart Ignore long line
 531                                 $out->addWikiText( <<<EOT
 532 <div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
 533 <div class="mediaWarning">$warning</div>
 534 EOT
 535                                 );
 536                                 // @codingStandardsIgnoreEnd
 537                         } else {
 538                                 $out->addWikiText( <<<EOT
 539 <div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
 540 </div>
 541 EOT
 542                                 );
 543                         }
 544
 545                         $renderLangOptions = $this->displayImg->getAvailableLanguages();
 546                         if ( count( $renderLangOptions ) >= 1 ) {
 547                                 $currentLanguage = $renderLang;
 548                                 $defaultLang = $this->displayImg->getDefaultRenderLanguage();
 549                                 if ( is_null( $currentLanguage ) ) {
 550                                         $currentLanguage = $defaultLang;
 551                                 }
 552                                 $out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $currentLanguage, $defaultLang ) );
 553                         }
 554
 555                         // Add cannot animate thumbnail warning
 556                         if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
 557                                 // Include the extension so wiki admins can
 558                                 // customize it on a per file-type basis
 559                                 // (aka say things like use format X instead).
 560                                 // additionally have a specific message for
 561                                 // file-no-thumb-animation-gif
 562                                 $ext = $this->displayImg->getExtension();
 563                                 $noAnimMesg = wfMessageFallback(
 564                                         'file-no-thumb-animation-' . $ext,
 565                                         'file-no-thumb-animation'
 566                                 )->plain();
 567
 568                                 $out->addWikiText( <<<EOT
 569 <div class="mw-noanimatethumb">{$noAnimMesg}</div>
 570 EOT
 571                                 );
 572                         }
 573
 574                         if ( !$this->displayImg->isLocal() ) {
 575                                 $this->printSharedImageText();
 576                         }
 577                 } else {
 578                         # Image does not exist
 579                         if ( !$this->getId() ) {
 580                                 $dbr = wfGetDB( DB_REPLICA );
 581
 582                                 # No article exists either
 583                                 # Show deletion log to be consistent with normal articles
 584                                 LogEventsList::showLogExtract(
 585                                         $out,
 586                                         [ 'delete', 'move' ],
 587                                         $this->getTitle()->getPrefixedText(),
 588                                         '',
 589                                         [ 'lim' => 10,
 590                                                 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
 591                                                 'showIfEmpty' => false,
 592                                                 'msgKey' => [ 'moveddeleted-notice' ]
 593                                         ]
 594                                 );
 595                         }
 596
 597                         if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
 598                                 // Only show an upload link if the user can upload
 599                                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 600                                 $nofile = [
 601                                         'filepage-nofile-link',
 602                                         $uploadTitle->getFullURL( [ 'wpDestFile' => $this->mPage->getFile()->getName() ] )
 603                                 ];
 604                         } else {
 605                                 $nofile = 'filepage-nofile';
 606                         }
 607                         // Note, if there is an image description page, but
 608                         // no image, then this setRobotPolicy is overridden
 609                         // by Article::View().
 610                         $out->setRobotPolicy( 'noindex,nofollow' );
 611                         $out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
 612                         if ( !$this->getId() && $wgSend404Code ) {
 613                                 // If there is no image, no shared image, and no description page,
 614                                 // output a 404, to be consistent with Article::showMissingArticle.
 615                                 $request->response()->statusHeader( 404 );
 616                         }
 617                 }
 618                 $out->setFileVersion( $this->displayImg );
 619         }
 620
 621         /**
 622          * Make the text under the image to say what size preview
 623          *
 624          * @param array $params parameters for thumbnail
 625          * @param string $sizeLinkBigImagePreview HTML for the current size
 626          * @return string HTML output
 627          */
 628         private function getThumbPrevText( $params, $sizeLinkBigImagePreview ) {
 629                 if ( $sizeLinkBigImagePreview ) {
 630                         // Show a different message of preview is different format from original.
 631                         $previewTypeDiffers = false;
 632                         $origExt = $thumbExt = $this->displayImg->getExtension();
 633                         if ( $this->displayImg->getHandler() ) {
 634                                 $origMime = $this->displayImg->getMimeType();
 635                                 $typeParams = $params;
 636                                 $this->displayImg->getHandler()->normaliseParams( $this->displayImg, $typeParams );
 637                                 list( $thumbExt, $thumbMime ) = $this->displayImg->getHandler()->getThumbType(
 638                                         $origExt, $origMime, $typeParams );
 639                                 if ( $thumbMime !== $origMime ) {
 640                                         $previewTypeDiffers = true;
 641                                 }
 642                         }
 643                         if ( $previewTypeDiffers ) {
 644                                 return $this->getContext()->msg( 'show-big-image-preview-differ' )->
 645                                         rawParams( $sizeLinkBigImagePreview )->
 646                                         params( strtoupper( $origExt ) )->
 647                                         params( strtoupper( $thumbExt ) )->
 648                                         parse();
 649                         } else {
 650                                 return $this->getContext()->msg( 'show-big-image-preview' )->
 651                                         rawParams( $sizeLinkBigImagePreview )->
 652                                 parse();
 653                         }
 654                 } else {
 655                         return '';
 656                 }
 657         }
 658
 659         /**
 660          * Creates an thumbnail of specified size and returns an HTML link to it
 661          * @param array $params Scaler parameters
 662          * @param int $width
 663          * @param int $height
 664          * @return string
 665          */
 666         private function makeSizeLink( $params, $width, $height ) {
 667                 $params['width'] = $width;
 668                 $params['height'] = $height;
 669                 $thumbnail = $this->displayImg->transform( $params );
 670                 if ( $thumbnail && !$thumbnail->isError() ) {
 671                         return Html::rawElement( 'a', [
 672                                 'href' => $thumbnail->getUrl(),
 673                                 'class' => 'mw-thumbnail-link'
 674                                 ], $this->getContext()->msg( 'show-big-image-size' )->numParams(
 675                                         $thumbnail->getWidth(), $thumbnail->getHeight()
 676                                 )->parse() );
 677                 } else {
 678                         return '';
 679                 }
 680         }
 681
 682         /**
 683          * Show a notice that the file is from a shared repository
 684          */
 685         protected function printSharedImageText() {
 686                 $out = $this->getContext()->getOutput();
 687                 $this->loadFile();
 688
 689                 $descUrl = $this->mPage->getFile()->getDescriptionUrl();
 690                 $descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
 691
 692                 /* Add canonical to head if there is no local page for this shared file */
 693                 if ( $descUrl && $this->mPage->getId() == 0 ) {
 694                         $out->setCanonicalUrl( $descUrl );
 695                 }
 696
 697                 $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
 698                 $repo = $this->mPage->getFile()->getRepo()->getDisplayName();
 699
 700                 if ( $descUrl &&
 701                         $descText &&
 702                         $this->getContext()->msg( 'sharedupload-desc-here' )->plain() !== '-'
 703                 ) {
 704                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-here', $repo, $descUrl ] );
 705                 } elseif ( $descUrl &&
 706                         $this->getContext()->msg( 'sharedupload-desc-there' )->plain() !== '-'
 707                 ) {
 708                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-there', $repo, $descUrl ] );
 709                 } else {
 710                         $out->wrapWikiMsg( $wrap, [ 'sharedupload', $repo ], ''/*BACKCOMPAT*/ );
 711                 }
 712
 713                 if ( $descText ) {
 714                         $this->mExtraDescription = $descText;
 715                 }
 716         }
 717
 718         public function getUploadUrl() {
 719                 $this->loadFile();
 720                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 721                 return $uploadTitle->getFullURL( [
 722                         'wpDestFile' => $this->mPage->getFile()->getName(),
 723                         'wpForReUpload' => 1
 724                 ] );
 725         }
 726
 727         /**
 728          * Print out the various links at the bottom of the image page, e.g. reupload,
 729          * external editing (and instructions link) etc.
 730          */
 731         protected function uploadLinksBox() {
 732                 global $wgEnableUploads;
 733
 734                 if ( !$wgEnableUploads ) {
 735                         return;
 736                 }
 737
 738                 $this->loadFile();
 739                 if ( !$this->mPage->getFile()->isLocal() ) {
 740                         return;
 741                 }
 742
 743                 $out = $this->getContext()->getOutput();
 744                 $out->addHTML( "<ul>\n" );
 745
 746                 # "Upload a new version of this file" link
 747                 $canUpload = $this->getTitle()->quickUserCan( 'upload', $this->getContext()->getUser() );
 748                 if ( $canUpload && UploadBase::userCanReUpload(
 749                                 $this->getContext()->getUser(),
 750                                 $this->mPage->getFile() )
 751                 ) {
 752                         $ulink = Linker::makeExternalLink(
 753                                 $this->getUploadUrl(),
 754                                 $this->getContext()->msg( 'uploadnewversion-linktext' )->text()
 755                         );
 756                         $out->addHTML( "<li id=\"mw-imagepage-reupload-link\">"
 757                                 . "<div class=\"plainlinks\">{$ulink}</div></li>\n" );
 758                 } else {
 759                         $out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">"
 760                                 . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
 761                 }
 762
 763                 $out->addHTML( "</ul>\n" );
 764         }
 765
 766         /**
 767          * For overloading
 768          */
 769         protected function closeShowImage() {
 770         }
 771
 772         /**
 773          * If the page we've just displayed is in the "Image" namespace,
 774          * we follow it with an upload history of the image and its usage.
 775          */
 776         protected function imageHistory() {
 777                 $this->loadFile();
 778                 $out = $this->getContext()->getOutput();
 779                 $pager = new ImageHistoryPseudoPager( $this );
 780                 $out->addHTML( $pager->getBody() );
 781                 $out->preventClickjacking( $pager->getPreventClickjacking() );
 782
 783                 $this->mPage->getFile()->resetHistory(); // free db resources
 784
 785                 # Exist check because we don't want to show this on pages where an image
 786                 # doesn't exist along with the noimage message, that would suck. -ævar
 787                 if ( $this->mPage->getFile()->exists() ) {
 788                         $this->uploadLinksBox();
 789                 }
 790         }
 791
 792         /**
 793          * @param string $target
 794          * @param int $limit
 795          * @return ResultWrapper
 796          */
 797         protected function queryImageLinks( $target, $limit ) {
 798                 $dbr = wfGetDB( DB_REPLICA );
 799
 800                 return $dbr->select(
 801                         [ 'imagelinks', 'page' ],
 802                         [ 'page_namespace', 'page_title', 'il_to' ],
 803                         [ 'il_to' => $target, 'il_from = page_id' ],
 804                         __METHOD__,
 805                         [ 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', ]
 806                 );
 807         }
 808
 809         protected function imageLinks() {
 810                 $limit = 100;
 811
 812                 $out = $this->getContext()->getOutput();
 813
 814                 $rows = [];
 815                 $redirects = [];
 816                 foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
 817                         $redirects[$redir->getDBkey()] = [];
 818                         $rows[] = (object)[
 819                                 'page_namespace' => NS_FILE,
 820                                 'page_title' => $redir->getDBkey(),
 821                         ];
 822                 }
 823
 824                 $res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
 825                 foreach ( $res as $row ) {
 826                         $rows[] = $row;
 827                 }
 828                 $count = count( $rows );
 829
 830                 $hasMore = $count > $limit;
 831                 if ( !$hasMore && count( $redirects ) ) {
 832                         $res = $this->queryImageLinks( array_keys( $redirects ),
 833                                 $limit - count( $rows ) + 1 );
 834                         foreach ( $res as $row ) {
 835                                 $redirects[$row->il_to][] = $row;
 836                                 $count++;
 837                         }
 838                         $hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
 839                 }
 840
 841                 if ( $count == 0 ) {
 842                         $out->wrapWikiMsg(
 843                                 Html::rawElement( 'div',
 844                                         [ 'id' => 'mw-imagepage-nolinkstoimage' ], "\n$1\n" ),
 845                                 'nolinkstoimage'
 846                         );
 847                         return;
 848                 }
 849
 850                 $out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
 851                 if ( !$hasMore ) {
 852                         $out->addWikiMsg( 'linkstoimage', $count );
 853                 } else {
 854                         // More links than the limit. Add a link to [[Special:Whatlinkshere]]
 855                         $out->addWikiMsg( 'linkstoimage-more',
 856                                 $this->getContext()->getLanguage()->formatNum( $limit ),
 857                                 $this->getTitle()->getPrefixedDBkey()
 858                         );
 859                 }
 860
 861                 $out->addHTML(
 862                         Html::openElement( 'ul',
 863                                 [ 'class' => 'mw-imagepage-linkstoimage' ] ) . "\n"
 864                 );
 865                 $count = 0;
 866
 867                 // Sort the list by namespace:title
 868                 usort( $rows, [ $this, 'compare' ] );
 869
 870                 // Create links for every element
 871                 $currentCount = 0;
 872                 foreach ( $rows as $element ) {
 873                         $currentCount++;
 874                         if ( $currentCount > $limit ) {
 875                                 break;
 876                         }
 877
 878                         $query = [];
 879                         # Add a redirect=no to make redirect pages reachable
 880                         if ( isset( $redirects[$element->page_title] ) ) {
 881                                 $query['redirect'] = 'no';
 882                         }
 883                         $link = Linker::linkKnown(
 884                                 Title::makeTitle( $element->page_namespace, $element->page_title ),
 885                                 null, [], $query
 886                         );
 887                         if ( !isset( $redirects[$element->page_title] ) ) {
 888                                 # No redirects
 889                                 $liContents = $link;
 890                         } elseif ( count( $redirects[$element->page_title] ) === 0 ) {
 891                                 # Redirect without usages
 892                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )
 893                                         ->rawParams( $link, '' )
 894                                         ->parse();
 895                         } else {
 896                                 # Redirect with usages
 897                                 $li = '';
 898                                 foreach ( $redirects[$element->page_title] as $row ) {
 899                                         $currentCount++;
 900                                         if ( $currentCount > $limit ) {
 901                                                 break;
 902                                         }
 903
 904                                         $link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
 905                                         $li .= Html::rawElement(
 906                                                 'li',
 907                                                 [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 908                                                 $link2
 909                                                 ) . "\n";
 910                                 }
 911
 912                                 $ul = Html::rawElement(
 913                                         'ul',
 914                                         [ 'class' => 'mw-imagepage-redirectstofile' ],
 915                                         $li
 916                                         ) . "\n";
 917                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )->rawParams(
 918                                         $link, $ul )->parse();
 919                         }
 920                         $out->addHTML( Html::rawElement(
 921                                         'li',
 922                                         [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 923                                         $liContents
 924                                 ) . "\n"
 925                         );
 926
 927                 };
 928                 $out->addHTML( Html::closeElement( 'ul' ) . "\n" );
 929                 $res->free();
 930
 931                 // Add a links to [[Special:Whatlinkshere]]
 932                 if ( $count > $limit ) {
 933                         $out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
 934                 }
 935                 $out->addHTML( Html::closeElement( 'div' ) . "\n" );
 936         }
 937
 938         protected function imageDupes() {
 939                 $this->loadFile();
 940                 $out = $this->getContext()->getOutput();
 941
 942                 $dupes = $this->mPage->getDuplicates();
 943                 if ( count( $dupes ) == 0 ) {
 944                         return;
 945                 }
 946
 947                 $out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
 948                 $out->addWikiMsg( 'duplicatesoffile',
 949                         $this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
 950                 );
 951                 $out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 952
 953                 /**
 954                  * @var $file File
 955                  */
 956                 foreach ( $dupes as $file ) {
 957                         $fromSrc = '';
 958                         if ( $file->isLocal() ) {
 959                                 $link = Linker::linkKnown( $file->getTitle() );
 960                         } else {
 961                                 $link = Linker::makeExternalLink( $file->getDescriptionUrl(),
 962                                         $file->getTitle()->getPrefixedText() );
 963                                 $fromSrc = $this->getContext()->msg(
 964                                         'shared-repo-from',
 965                                         $file->getRepo()->getDisplayName()
 966                                 )->text();
 967                         }
 968                         $out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
 969                 }
 970                 $out->addHTML( "</ul></div>\n" );
 971         }
 972
 973         /**
 974          * Delete the file, or an earlier version of it
 975          */
 976         public function delete() {
 977                 $file = $this->mPage->getFile();
 978                 if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
 979                         // Standard article deletion
 980                         parent::delete();
 981                         return;
 982                 }
 983
 984                 $deleter = new FileDeleteForm( $file );
 985                 $deleter->execute();
 986         }
 987
 988         /**
 989          * Display an error with a wikitext description
 990          *
 991          * @param string $description
 992          */
 993         function showError( $description ) {
 994                 $out = $this->getContext()->getOutput();
 995                 $out->setPageTitle( $this->getContext()->msg( 'internalerror' ) );
 996                 $out->setRobotPolicy( 'noindex,nofollow' );
 997                 $out->setArticleRelated( false );
 998                 $out->enableClientCache( false );
 999                 $out->addWikiText( $description );
1000         }
1001
1002         /**
1003          * Callback for usort() to do link sorts by (namespace, title)
1004          * Function copied from Title::compare()
1005          *
1006          * @param object $a Object page to compare with
1007          * @param object $b Object page to compare with
1008          * @return int Result of string comparison, or namespace comparison
1009          */
1010         protected function compare( $a, $b ) {
1011                 if ( $a->page_namespace == $b->page_namespace ) {
1012                         return strcmp( $a->page_title, $b->page_title );
1013                 } else {
1014                         return $a->page_namespace - $b->page_namespace;
1015                 }
1016         }
1017
1018         /**
1019          * Returns the corresponding $wgImageLimits entry for the selected user option
1020          *
1021          * @param User $user
1022          * @param string $optionName Name of a option to check, typically imagesize or thumbsize
1023          * @return array
1024          * @since 1.21
1025          */
1026         public function getImageLimitsFromOption( $user, $optionName ) {
1027                 global $wgImageLimits;
1028
1029                 $option = $user->getIntOption( $optionName );
1030                 if ( !isset( $wgImageLimits[$option] ) ) {
1031                         $option = User::getDefaultOption( $optionName );
1032                 }
1033
1034                 // The user offset might still be incorrect, specially if
1035                 // $wgImageLimits got changed (see bug #8858).
1036                 if ( !isset( $wgImageLimits[$option] ) ) {
1037                         // Default to the first offset in $wgImageLimits
1038                         $option = 0;
1039                 }
1040
1041                 return isset( $wgImageLimits[$option] )
1042                         ? $wgImageLimits[$option]
1043                         : [ 800, 600 ]; // if nothing is set, fallback to a hardcoded default
1044         }
1045
1046         /**
1047          * Output a drop-down box for language options for the file
1048          *
1049          * @param array $langChoices Array of string language codes
1050          * @param string $curLang Language code file is being viewed in.
1051          * @param string $defaultLang Language code that image is rendered in by default
1052          * @return string HTML to insert underneath image.
1053          */
1054         protected function doRenderLangOpt( array $langChoices, $curLang, $defaultLang ) {
1055                 global $wgScript;
1056                 sort( $langChoices );
1057                 $curLang = wfBCP47( $curLang );
1058                 $defaultLang = wfBCP47( $defaultLang );
1059                 $opts = '';
1060                 $haveCurrentLang = false;
1061                 $haveDefaultLang = false;
1062
1063                 // We make a list of all the language choices in the file.
1064                 // Additionally if the default language to render this file
1065                 // is not included as being in this file (for example, in svgs
1066                 // usually the fallback content is the english content) also
1067                 // include a choice for that. Last of all, if we're viewing
1068                 // the file in a language not on the list, add it as a choice.
1069                 foreach ( $langChoices as $lang ) {
1070                         $code = wfBCP47( $lang );
1071                         $name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
1072                         if ( $name !== '' ) {
1073                                 $display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
1074                         } else {
1075                                 $display = $code;
1076                         }
1077                         $opts .= "\n" . Xml::option( $display, $code, $curLang === $code );
1078                         if ( $curLang === $code ) {
1079                                 $haveCurrentLang = true;
1080                         }
1081                         if ( $defaultLang === $code ) {
1082                                 $haveDefaultLang = true;
1083                         }
1084                 }
1085                 if ( !$haveDefaultLang ) {
1086                         // Its hard to know if the content is really in the default language, or
1087                         // if its just unmarked content that could be in any language.
1088                         $opts = Xml::option(
1089                                         $this->getContext()->msg( 'img-lang-default' )->text(),
1090                                 $defaultLang,
1091                                 $defaultLang === $curLang
1092                         ) . $opts;
1093                 }
1094                 if ( !$haveCurrentLang && $defaultLang !== $curLang ) {
1095                         $name = Language::fetchLanguageName( $curLang, $this->getContext()->getLanguage()->getCode() );
1096                         if ( $name !== '' ) {
1097                                 $display = $this->getContext()->msg( 'img-lang-opt', $curLang, $name )->text();
1098                         } else {
1099                                 $display = $curLang;
1100                         }
1101                         $opts = Xml::option( $display, $curLang, true ) . $opts;
1102                 }
1103
1104                 $select = Html::rawElement(
1105                         'select',
1106                         [ 'id' => 'mw-imglangselector', 'name' => 'lang' ],
1107                         $opts
1108                 );
1109                 $submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
1110
1111                 $formContents = $this->getContext()->msg( 'img-lang-info' )
1112                         ->rawParams( $select, $submit )
1113                         ->parse();
1114                 $formContents .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
1115
1116                 $langSelectLine = Html::rawElement( 'div', [ 'id' => 'mw-imglangselector-line' ],
1117                         Html::rawElement( 'form', [ 'action' => $wgScript ], $formContents )
1118                 );
1119                 return $langSelectLine;
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 }