--- /dev/null
+<?php
+/**
+ * Special handling for file description pages.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+use Wikimedia\Rdbms\ResultWrapper;
+
+/**
+ * Class for viewing MediaWiki file description pages
+ *
+ * @ingroup Media
+ */
+class ImagePage extends Article {
+ /** @var File */
+ private $displayImg;
+
+ /** @var FileRepo */
+ private $repo;
+
+ /** @var bool */
+ private $fileLoaded;
+
+ /** @var bool */
+ protected $mExtraDescription = false;
+
+ /**
+ * @var WikiFilePage
+ */
+ protected $mPage;
+
+ /**
+ * @param Title $title
+ * @return WikiFilePage
+ */
+ protected function newPage( Title $title ) {
+ // Overload mPage with a file-specific page
+ return new WikiFilePage( $title );
+ }
+
+ /**
+ * @param File $file
+ * @return void
+ */
+ public function setFile( $file ) {
+ $this->mPage->setFile( $file );
+ $this->displayImg = $file;
+ $this->fileLoaded = true;
+ }
+
+ protected function loadFile() {
+ if ( $this->fileLoaded ) {
+ return;
+ }
+ $this->fileLoaded = true;
+
+ $this->displayImg = $img = false;
+
+ Hooks::run( 'ImagePageFindFile', [ $this, &$img, &$this->displayImg ] );
+ if ( !$img ) { // not set by hook?
+ $img = wfFindFile( $this->getTitle() );
+ if ( !$img ) {
+ $img = wfLocalFile( $this->getTitle() );
+ }
+ }
+ $this->mPage->setFile( $img );
+ if ( !$this->displayImg ) { // not set by hook?
+ $this->displayImg = $img;
+ }
+ $this->repo = $img->getRepo();
+ }
+
+ /**
+ * Handler for action=render
+ * Include body text only; none of the image extras
+ */
+ public function render() {
+ $this->getContext()->getOutput()->setArticleBodyOnly( true );
+ parent::view();
+ }
+
+ public function view() {
+ global $wgShowEXIF;
+
+ $out = $this->getContext()->getOutput();
+ $request = $this->getContext()->getRequest();
+ $diff = $request->getVal( 'diff' );
+ $diffOnly = $request->getBool(
+ 'diffonly',
+ $this->getContext()->getUser()->getOption( 'diffonly' )
+ );
+
+ if ( $this->getTitle()->getNamespace() != NS_FILE || ( $diff !== null && $diffOnly ) ) {
+ parent::view();
+ return;
+ }
+
+ $this->loadFile();
+
+ if ( $this->getTitle()->getNamespace() == NS_FILE && $this->mPage->getFile()->getRedirected() ) {
+ if ( $this->getTitle()->getDBkey() == $this->mPage->getFile()->getName() || $diff !== null ) {
+ $request->setVal( 'diffonly', 'true' );
+ }
+
+ parent::view();
+ return;
+ }
+
+ if ( $wgShowEXIF && $this->displayImg->exists() ) {
+ // @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
+ $formattedMetadata = $this->displayImg->formatMetadata( $this->getContext() );
+ $showmeta = $formattedMetadata !== false;
+ } else {
+ $showmeta = false;
+ }
+
+ if ( !$diff && $this->displayImg->exists() ) {
+ $out->addHTML( $this->showTOC( $showmeta ) );
+ }
+
+ if ( !$diff ) {
+ $this->openShowImage();
+ }
+
+ # No need to display noarticletext, we use our own message, output in openShowImage()
+ if ( $this->mPage->getId() ) {
+ # NS_FILE is in the user language, but this section (the actual wikitext)
+ # should be in page content language
+ $pageLang = $this->getTitle()->getPageViewLanguage();
+ $out->addHTML( Xml::openElement( 'div', [ 'id' => 'mw-imagepage-content',
+ 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
+ 'class' => 'mw-content-' . $pageLang->getDir() ] ) );
+
+ parent::view();
+
+ $out->addHTML( Xml::closeElement( 'div' ) );
+ } else {
+ # Just need to set the right headers
+ $out->setArticleFlag( true );
+ $out->setPageTitle( $this->getTitle()->getPrefixedText() );
+ $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
+ }
+
+ # Show shared description, if needed
+ if ( $this->mExtraDescription ) {
+ $fol = $this->getContext()->msg( 'shareddescriptionfollows' );
+ if ( !$fol->isDisabled() ) {
+ $out->addWikiText( $fol->plain() );
+ }
+ $out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
+ }
+
+ $this->closeShowImage();
+ $this->imageHistory();
+ // TODO: Cleanup the following
+
+ $out->addHTML( Xml::element( 'h2',
+ [ 'id' => 'filelinks' ],
+ $this->getContext()->msg( 'imagelinks' )->text() ) . "\n" );
+ $this->imageDupes();
+ # @todo FIXME: For some freaky reason, we can't redirect to foreign images.
+ # Yet we return metadata about the target. Definitely an issue in the FileRepo
+ $this->imageLinks();
+
+ # Allow extensions to add something after the image links
+ $html = '';
+ Hooks::run( 'ImagePageAfterImageLinks', [ $this, &$html ] );
+ if ( $html ) {
+ $out->addHTML( $html );
+ }
+
+ if ( $showmeta ) {
+ $out->addHTML( Xml::element(
+ 'h2',
+ [ 'id' => 'metadata' ],
+ $this->getContext()->msg( 'metadata' )->text() ) . "\n" );
+ $out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
+ $out->addModules( [ 'mediawiki.action.view.metadata' ] );
+ }
+
+ // Add remote Filepage.css
+ if ( !$this->repo->isLocal() ) {
+ $css = $this->repo->getDescriptionStylesheetUrl();
+ if ( $css ) {
+ $out->addStyle( $css );
+ }
+ }
+
+ $out->addModuleStyles( [
+ 'filepage', // always show the local local Filepage.css, T31277
+ 'mediawiki.action.view.filepage', // Add MediaWiki styles for a file page
+ ] );
+ }
+
+ /**
+ * @return File
+ */
+ public function getDisplayedFile() {
+ $this->loadFile();
+ return $this->displayImg;
+ }
+
+ /**
+ * Create the TOC
+ *
+ * @param bool $metadata Whether or not to show the metadata link
+ * @return string
+ */
+ protected function showTOC( $metadata ) {
+ $r = [
+ '<li><a href="#file">' . $this->getContext()->msg( 'file-anchor-link' )->escaped() . '</a></li>',
+ '<li><a href="#filehistory">' . $this->getContext()->msg( 'filehist' )->escaped() . '</a></li>',
+ '<li><a href="#filelinks">' . $this->getContext()->msg( 'imagelinks' )->escaped() . '</a></li>',
+ ];
+
+ Hooks::run( 'ImagePageShowTOC', [ $this, &$r ] );
+
+ if ( $metadata ) {
+ $r[] = '<li><a href="#metadata">' .
+ $this->getContext()->msg( 'metadata' )->escaped() .
+ '</a></li>';
+ }
+
+ return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
+ }
+
+ /**
+ * Make a table with metadata to be shown in the output page.
+ *
+ * @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
+ *
+ * @param array $metadata The array containing the Exif data
+ * @return string The metadata table. This is treated as Wikitext (!)
+ */
+ protected function makeMetadataTable( $metadata ) {
+ $r = "<div class=\"mw-imagepage-section-metadata\">";
+ $r .= $this->getContext()->msg( 'metadata-help' )->plain();
+ $r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
+ foreach ( $metadata as $type => $stuff ) {
+ foreach ( $stuff as $v ) {
+ $class = str_replace( ' ', '_', $v['id'] );
+ if ( $type == 'collapsed' ) {
+ // Handled by mediawiki.action.view.metadata module.
+ $class .= ' collapsable';
+ }
+ $r .= Html::rawElement( 'tr',
+ [ 'class' => $class ],
+ Html::rawElement( 'th', [], $v['name'] )
+ . Html::rawElement( 'td', [], $v['value'] )
+ );
+ }
+ }
+ $r .= "</table>\n</div>\n";
+ return $r;
+ }
+
+ /**
+ * Overloading Article's getContentObject method.
+ *
+ * Omit noarticletext if sharedupload; text will be fetched from the
+ * shared upload server if possible.
+ * @return string
+ */
+ public function getContentObject() {
+ $this->loadFile();
+ if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getId() ) {
+ return null;
+ }
+ return parent::getContentObject();
+ }
+
+ protected function openShowImage() {
+ global $wgEnableUploads, $wgSend404Code, $wgSVGMaxSize;
+
+ $this->loadFile();
+ $out = $this->getContext()->getOutput();
+ $user = $this->getContext()->getUser();
+ $lang = $this->getContext()->getLanguage();
+ $dirmark = $lang->getDirMarkEntity();
+ $request = $this->getContext()->getRequest();
+
+ $max = $this->getImageLimitsFromOption( $user, 'imagesize' );
+ $maxWidth = $max[0];
+ $maxHeight = $max[1];
+
+ if ( $this->displayImg->exists() ) {
+ # image
+ $page = $request->getIntOrNull( 'page' );
+ if ( is_null( $page ) ) {
+ $params = [];
+ $page = 1;
+ } else {
+ $params = [ 'page' => $page ];
+ }
+
+ $renderLang = $request->getVal( 'lang' );
+ if ( !is_null( $renderLang ) ) {
+ $handler = $this->displayImg->getHandler();
+ if ( $handler && $handler->validateParam( 'lang', $renderLang ) ) {
+ $params['lang'] = $renderLang;
+ } else {
+ $renderLang = null;
+ }
+ }
+
+ $width_orig = $this->displayImg->getWidth( $page );
+ $width = $width_orig;
+ $height_orig = $this->displayImg->getHeight( $page );
+ $height = $height_orig;
+
+ $filename = wfEscapeWikiText( $this->displayImg->getName() );
+ $linktext = $filename;
+
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $imagePage = $this;
+
+ Hooks::run( 'ImageOpenShowImageInlineBefore', [ &$imagePage, &$out ] );
+
+ if ( $this->displayImg->allowInlineDisplay() ) {
+ # image
+ # "Download high res version" link below the image
+ # $msgsize = $this->getContext()->msg( 'file-info-size', $width_orig, $height_orig,
+ # Linker::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
+ # We'll show a thumbnail of this image
+ if ( $width > $maxWidth || $height > $maxHeight || $this->displayImg->isVectorized() ) {
+ list( $width, $height ) = $this->getDisplayWidthHeight(
+ $maxWidth, $maxHeight, $width, $height
+ );
+ $linktext = $this->getContext()->msg( 'show-big-image' )->escaped();
+
+ $thumbSizes = $this->getThumbSizes( $width_orig, $height_orig );
+ # Generate thumbnails or thumbnail links as needed...
+ $otherSizes = [];
+ foreach ( $thumbSizes as $size ) {
+ // We include a thumbnail size in the list, if it is
+ // less than or equal to the original size of the image
+ // asset ($width_orig/$height_orig). We also exclude
+ // the current thumbnail's size ($width/$height)
+ // since that is added to the message separately, so
+ // it can be denoted as the current size being shown.
+ // Vectorized images are limited by $wgSVGMaxSize big,
+ // so all thumbs less than or equal that are shown.
+ if ( ( ( $size[0] <= $width_orig && $size[1] <= $height_orig )
+ || ( $this->displayImg->isVectorized()
+ && max( $size[0], $size[1] ) <= $wgSVGMaxSize )
+ )
+ && $size[0] != $width && $size[1] != $height
+ ) {
+ $sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
+ if ( $sizeLink ) {
+ $otherSizes[] = $sizeLink;
+ }
+ }
+ }
+ $otherSizes = array_unique( $otherSizes );
+
+ $sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
+ $msgsmall = $this->getThumbPrevText( $params, $sizeLinkBigImagePreview );
+ if ( count( $otherSizes ) ) {
+ $msgsmall .= ' ' .
+ Html::rawElement(
+ 'span',
+ [ 'class' => 'mw-filepage-other-resolutions' ],
+ $this->getContext()->msg( 'show-big-image-other' )
+ ->rawParams( $lang->pipeList( $otherSizes ) )
+ ->params( count( $otherSizes ) )
+ ->parse()
+ );
+ }
+ } elseif ( $width == 0 && $height == 0 ) {
+ # Some sort of audio file that doesn't have dimensions
+ # Don't output a no hi res message for such a file
+ $msgsmall = '';
+ } else {
+ # Image is small enough to show full size on image page
+ $msgsmall = $this->getContext()->msg( 'file-nohires' )->parse();
+ }
+
+ $params['width'] = $width;
+ $params['height'] = $height;
+ $thumbnail = $this->displayImg->transform( $params );
+ Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
+
+ $anchorclose = Html::rawElement(
+ 'div',
+ [ 'class' => 'mw-filepage-resolutioninfo' ],
+ $msgsmall
+ );
+
+ $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
+ if ( $isMulti ) {
+ $out->addModules( 'mediawiki.page.image.pagination' );
+ $out->addHTML( '<table class="multipageimage"><tr><td>' );
+ }
+
+ if ( $thumbnail ) {
+ $options = [
+ 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
+ 'file-link' => true,
+ ];
+ $out->addHTML( '<div class="fullImageLink" id="file">' .
+ $thumbnail->toHtml( $options ) .
+ $anchorclose . "</div>\n" );
+ }
+
+ if ( $isMulti ) {
+ $count = $this->displayImg->pageCount();
+
+ if ( $page > 1 ) {
+ $label = $this->getContext()->msg( 'imgmultipageprev' )->text();
+ // on the client side, this link is generated in ajaxifyPageNavigation()
+ // in the mediawiki.page.image.pagination module
+ $link = Linker::linkKnown(
+ $this->getTitle(),
+ $label,
+ [],
+ [ 'page' => $page - 1 ]
+ );
+ $thumb1 = Linker::makeThumbLinkObj(
+ $this->getTitle(),
+ $this->displayImg,
+ $link,
+ $label,
+ 'none',
+ [ 'page' => $page - 1 ]
+ );
+ } else {
+ $thumb1 = '';
+ }
+
+ if ( $page < $count ) {
+ $label = $this->getContext()->msg( 'imgmultipagenext' )->text();
+ $link = Linker::linkKnown(
+ $this->getTitle(),
+ $label,
+ [],
+ [ 'page' => $page + 1 ]
+ );
+ $thumb2 = Linker::makeThumbLinkObj(
+ $this->getTitle(),
+ $this->displayImg,
+ $link,
+ $label,
+ 'none',
+ [ 'page' => $page + 1 ]
+ );
+ } else {
+ $thumb2 = '';
+ }
+
+ global $wgScript;
+
+ $formParams = [
+ 'name' => 'pageselector',
+ 'action' => $wgScript,
+ ];
+ $options = [];
+ for ( $i = 1; $i <= $count; $i++ ) {
+ $options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
+ }
+ $select = Xml::tags( 'select',
+ [ 'id' => 'pageselector', 'name' => 'page' ],
+ implode( "\n", $options ) );
+
+ $out->addHTML(
+ '</td><td><div class="multipageimagenavbox">' .
+ Xml::openElement( 'form', $formParams ) .
+ Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
+ $this->getContext()->msg( 'imgmultigoto' )->rawParams( $select )->parse() .
+ $this->getContext()->msg( 'word-separator' )->escaped() .
+ Xml::submitButton( $this->getContext()->msg( 'imgmultigo' )->text() ) .
+ Xml::closeElement( 'form' ) .
+ "<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
+ );
+ }
+ } elseif ( $this->displayImg->isSafeFile() ) {
+ # if direct link is allowed but it's not a renderable image, show an icon.
+ $icon = $this->displayImg->iconThumb();
+
+ $out->addHTML( '<div class="fullImageLink" id="file">' .
+ $icon->toHtml( [ 'file-link' => true ] ) .
+ "</div>\n" );
+ }
+
+ $longDesc = $this->getContext()->msg( 'parentheses', $this->displayImg->getLongDesc() )->text();
+
+ $handler = $this->displayImg->getHandler();
+
+ // If this is a filetype with potential issues, warn the user.
+ if ( $handler ) {
+ $warningConfig = $handler->getWarningConfig( $this->displayImg );
+
+ if ( $warningConfig !== null ) {
+ // The warning will be displayed via CSS and JavaScript.
+ // We just need to tell the client side what message to use.
+ $output = $this->getContext()->getOutput();
+ $output->addJsConfigVars( 'wgFileWarning', $warningConfig );
+ $output->addModules( $warningConfig['module'] );
+ $output->addModules( 'mediawiki.filewarning' );
+ }
+ }
+
+ $medialink = "[[Media:$filename|$linktext]]";
+
+ if ( !$this->displayImg->isSafeFile() ) {
+ $warning = $this->getContext()->msg( 'mediawarning' )->plain();
+ // dirmark is needed here to separate the file name, which
+ // most likely ends in Latin characters, from the description,
+ // which may begin with the file type. In RTL environment
+ // this will get messy.
+ // The dirmark, however, must not be immediately adjacent
+ // to the filename, because it can get copied with it.
+ // See T27277.
+ // @codingStandardsIgnoreStart Ignore long line
+ $out->addWikiText( <<<EOT
+<div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
+<div class="mediaWarning">$warning</div>
+EOT
+ );
+ // @codingStandardsIgnoreEnd
+ } else {
+ $out->addWikiText( <<<EOT
+<div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
+</div>
+EOT
+ );
+ }
+
+ $renderLangOptions = $this->displayImg->getAvailableLanguages();
+ if ( count( $renderLangOptions ) >= 1 ) {
+ $currentLanguage = $renderLang;
+ $defaultLang = $this->displayImg->getDefaultRenderLanguage();
+ if ( is_null( $currentLanguage ) ) {
+ $currentLanguage = $defaultLang;
+ }
+ $out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $currentLanguage, $defaultLang ) );
+ }
+
+ // Add cannot animate thumbnail warning
+ if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
+ // Include the extension so wiki admins can
+ // customize it on a per file-type basis
+ // (aka say things like use format X instead).
+ // additionally have a specific message for
+ // file-no-thumb-animation-gif
+ $ext = $this->displayImg->getExtension();
+ $noAnimMesg = wfMessageFallback(
+ 'file-no-thumb-animation-' . $ext,
+ 'file-no-thumb-animation'
+ )->plain();
+
+ $out->addWikiText( <<<EOT
+<div class="mw-noanimatethumb">{$noAnimMesg}</div>
+EOT
+ );
+ }
+
+ if ( !$this->displayImg->isLocal() ) {
+ $this->printSharedImageText();
+ }
+ } else {
+ # Image does not exist
+ if ( !$this->getId() ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ # No article exists either
+ # Show deletion log to be consistent with normal articles
+ LogEventsList::showLogExtract(
+ $out,
+ [ 'delete', 'move' ],
+ $this->getTitle()->getPrefixedText(),
+ '',
+ [ 'lim' => 10,
+ 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
+ 'showIfEmpty' => false,
+ 'msgKey' => [ 'moveddeleted-notice' ]
+ ]
+ );
+ }
+
+ if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
+ // Only show an upload link if the user can upload
+ $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
+ $nofile = [
+ 'filepage-nofile-link',
+ $uploadTitle->getFullURL( [ 'wpDestFile' => $this->mPage->getFile()->getName() ] )
+ ];
+ } else {
+ $nofile = 'filepage-nofile';
+ }
+ // Note, if there is an image description page, but
+ // no image, then this setRobotPolicy is overridden
+ // by Article::View().
+ $out->setRobotPolicy( 'noindex,nofollow' );
+ $out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
+ if ( !$this->getId() && $wgSend404Code ) {
+ // If there is no image, no shared image, and no description page,
+ // output a 404, to be consistent with Article::showMissingArticle.
+ $request->response()->statusHeader( 404 );
+ }
+ }
+ $out->setFileVersion( $this->displayImg );
+ }
+
+ /**
+ * Make the text under the image to say what size preview
+ *
+ * @param array $params parameters for thumbnail
+ * @param string $sizeLinkBigImagePreview HTML for the current size
+ * @return string HTML output
+ */
+ private function getThumbPrevText( $params, $sizeLinkBigImagePreview ) {
+ if ( $sizeLinkBigImagePreview ) {
+ // Show a different message of preview is different format from original.
+ $previewTypeDiffers = false;
+ $origExt = $thumbExt = $this->displayImg->getExtension();
+ if ( $this->displayImg->getHandler() ) {
+ $origMime = $this->displayImg->getMimeType();
+ $typeParams = $params;
+ $this->displayImg->getHandler()->normaliseParams( $this->displayImg, $typeParams );
+ list( $thumbExt, $thumbMime ) = $this->displayImg->getHandler()->getThumbType(
+ $origExt, $origMime, $typeParams );
+ if ( $thumbMime !== $origMime ) {
+ $previewTypeDiffers = true;
+ }
+ }
+ if ( $previewTypeDiffers ) {
+ return $this->getContext()->msg( 'show-big-image-preview-differ' )->
+ rawParams( $sizeLinkBigImagePreview )->
+ params( strtoupper( $origExt ) )->
+ params( strtoupper( $thumbExt ) )->
+ parse();
+ } else {
+ return $this->getContext()->msg( 'show-big-image-preview' )->
+ rawParams( $sizeLinkBigImagePreview )->
+ parse();
+ }
+ } else {
+ return '';
+ }
+ }
+
+ /**
+ * Creates an thumbnail of specified size and returns an HTML link to it
+ * @param array $params Scaler parameters
+ * @param int $width
+ * @param int $height
+ * @return string
+ */
+ private function makeSizeLink( $params, $width, $height ) {
+ $params['width'] = $width;
+ $params['height'] = $height;
+ $thumbnail = $this->displayImg->transform( $params );
+ if ( $thumbnail && !$thumbnail->isError() ) {
+ return Html::rawElement( 'a', [
+ 'href' => $thumbnail->getUrl(),
+ 'class' => 'mw-thumbnail-link'
+ ], $this->getContext()->msg( 'show-big-image-size' )->numParams(
+ $thumbnail->getWidth(), $thumbnail->getHeight()
+ )->parse() );
+ } else {
+ return '';
+ }
+ }
+
+ /**
+ * Show a notice that the file is from a shared repository
+ */
+ protected function printSharedImageText() {
+ $out = $this->getContext()->getOutput();
+ $this->loadFile();
+
+ $descUrl = $this->mPage->getFile()->getDescriptionUrl();
+ $descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
+
+ /* Add canonical to head if there is no local page for this shared file */
+ if ( $descUrl && $this->mPage->getId() == 0 ) {
+ $out->setCanonicalUrl( $descUrl );
+ }
+
+ $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
+ $repo = $this->mPage->getFile()->getRepo()->getDisplayName();
+
+ if ( $descUrl &&
+ $descText &&
+ $this->getContext()->msg( 'sharedupload-desc-here' )->plain() !== '-'
+ ) {
+ $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-here', $repo, $descUrl ] );
+ } elseif ( $descUrl &&
+ $this->getContext()->msg( 'sharedupload-desc-there' )->plain() !== '-'
+ ) {
+ $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-there', $repo, $descUrl ] );
+ } else {
+ $out->wrapWikiMsg( $wrap, [ 'sharedupload', $repo ], ''/*BACKCOMPAT*/ );
+ }
+
+ if ( $descText ) {
+ $this->mExtraDescription = $descText;
+ }
+ }
+
+ public function getUploadUrl() {
+ $this->loadFile();
+ $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
+ return $uploadTitle->getFullURL( [
+ 'wpDestFile' => $this->mPage->getFile()->getName(),
+ 'wpForReUpload' => 1
+ ] );
+ }
+
+ /**
+ * Print out the various links at the bottom of the image page, e.g. reupload,
+ * external editing (and instructions link) etc.
+ */
+ protected function uploadLinksBox() {
+ global $wgEnableUploads;
+
+ if ( !$wgEnableUploads ) {
+ return;
+ }
+
+ $this->loadFile();
+ if ( !$this->mPage->getFile()->isLocal() ) {
+ return;
+ }
+
+ $out = $this->getContext()->getOutput();
+ $out->addHTML( "<ul>\n" );
+
+ # "Upload a new version of this file" link
+ $canUpload = $this->getTitle()->quickUserCan( 'upload', $this->getContext()->getUser() );
+ if ( $canUpload && UploadBase::userCanReUpload(
+ $this->getContext()->getUser(),
+ $this->mPage->getFile() )
+ ) {
+ $ulink = Linker::makeExternalLink(
+ $this->getUploadUrl(),
+ $this->getContext()->msg( 'uploadnewversion-linktext' )->text()
+ );
+ $out->addHTML( "<li id=\"mw-imagepage-reupload-link\">"
+ . "<div class=\"plainlinks\">{$ulink}</div></li>\n" );
+ } else {
+ $out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">"
+ . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
+ }
+
+ $out->addHTML( "</ul>\n" );
+ }
+
+ /**
+ * For overloading
+ */
+ protected function closeShowImage() {
+ }
+
+ /**
+ * If the page we've just displayed is in the "Image" namespace,
+ * we follow it with an upload history of the image and its usage.
+ */
+ protected function imageHistory() {
+ $this->loadFile();
+ $out = $this->getContext()->getOutput();
+ $pager = new ImageHistoryPseudoPager( $this );
+ $out->addHTML( $pager->getBody() );
+ $out->preventClickjacking( $pager->getPreventClickjacking() );
+
+ $this->mPage->getFile()->resetHistory(); // free db resources
+
+ # Exist check because we don't want to show this on pages where an image
+ # doesn't exist along with the noimage message, that would suck. -ævar
+ if ( $this->mPage->getFile()->exists() ) {
+ $this->uploadLinksBox();
+ }
+ }
+
+ /**
+ * @param string $target
+ * @param int $limit
+ * @return ResultWrapper
+ */
+ protected function queryImageLinks( $target, $limit ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ return $dbr->select(
+ [ 'imagelinks', 'page' ],
+ [ 'page_namespace', 'page_title', 'il_to' ],
+ [ 'il_to' => $target, 'il_from = page_id' ],
+ __METHOD__,
+ [ 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', ]
+ );
+ }
+
+ protected function imageLinks() {
+ $limit = 100;
+
+ $out = $this->getContext()->getOutput();
+
+ $rows = [];
+ $redirects = [];
+ foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
+ $redirects[$redir->getDBkey()] = [];
+ $rows[] = (object)[
+ 'page_namespace' => NS_FILE,
+ 'page_title' => $redir->getDBkey(),
+ ];
+ }
+
+ $res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
+ foreach ( $res as $row ) {
+ $rows[] = $row;
+ }
+ $count = count( $rows );
+
+ $hasMore = $count > $limit;
+ if ( !$hasMore && count( $redirects ) ) {
+ $res = $this->queryImageLinks( array_keys( $redirects ),
+ $limit - count( $rows ) + 1 );
+ foreach ( $res as $row ) {
+ $redirects[$row->il_to][] = $row;
+ $count++;
+ }
+ $hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
+ }
+
+ if ( $count == 0 ) {
+ $out->wrapWikiMsg(
+ Html::rawElement( 'div',
+ [ 'id' => 'mw-imagepage-nolinkstoimage' ], "\n$1\n" ),
+ 'nolinkstoimage'
+ );
+ return;
+ }
+
+ $out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
+ if ( !$hasMore ) {
+ $out->addWikiMsg( 'linkstoimage', $count );
+ } else {
+ // More links than the limit. Add a link to [[Special:Whatlinkshere]]
+ $out->addWikiMsg( 'linkstoimage-more',
+ $this->getContext()->getLanguage()->formatNum( $limit ),
+ $this->getTitle()->getPrefixedDBkey()
+ );
+ }
+
+ $out->addHTML(
+ Html::openElement( 'ul',
+ [ 'class' => 'mw-imagepage-linkstoimage' ] ) . "\n"
+ );
+ $count = 0;
+
+ // Sort the list by namespace:title
+ usort( $rows, [ $this, 'compare' ] );
+
+ // Create links for every element
+ $currentCount = 0;
+ foreach ( $rows as $element ) {
+ $currentCount++;
+ if ( $currentCount > $limit ) {
+ break;
+ }
+
+ $query = [];
+ # Add a redirect=no to make redirect pages reachable
+ if ( isset( $redirects[$element->page_title] ) ) {
+ $query['redirect'] = 'no';
+ }
+ $link = Linker::linkKnown(
+ Title::makeTitle( $element->page_namespace, $element->page_title ),
+ null, [], $query
+ );
+ if ( !isset( $redirects[$element->page_title] ) ) {
+ # No redirects
+ $liContents = $link;
+ } elseif ( count( $redirects[$element->page_title] ) === 0 ) {
+ # Redirect without usages
+ $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )
+ ->rawParams( $link, '' )
+ ->parse();
+ } else {
+ # Redirect with usages
+ $li = '';
+ foreach ( $redirects[$element->page_title] as $row ) {
+ $currentCount++;
+ if ( $currentCount > $limit ) {
+ break;
+ }
+
+ $link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
+ $li .= Html::rawElement(
+ 'li',
+ [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
+ $link2
+ ) . "\n";
+ }
+
+ $ul = Html::rawElement(
+ 'ul',
+ [ 'class' => 'mw-imagepage-redirectstofile' ],
+ $li
+ ) . "\n";
+ $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )->rawParams(
+ $link, $ul )->parse();
+ }
+ $out->addHTML( Html::rawElement(
+ 'li',
+ [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
+ $liContents
+ ) . "\n"
+ );
+
+ };
+ $out->addHTML( Html::closeElement( 'ul' ) . "\n" );
+ $res->free();
+
+ // Add a links to [[Special:Whatlinkshere]]
+ if ( $count > $limit ) {
+ $out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
+ }
+ $out->addHTML( Html::closeElement( 'div' ) . "\n" );
+ }
+
+ protected function imageDupes() {
+ $this->loadFile();
+ $out = $this->getContext()->getOutput();
+
+ $dupes = $this->mPage->getDuplicates();
+ if ( count( $dupes ) == 0 ) {
+ return;
+ }
+
+ $out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
+ $out->addWikiMsg( 'duplicatesoffile',
+ $this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
+ );
+ $out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
+
+ /**
+ * @var $file File
+ */
+ foreach ( $dupes as $file ) {
+ $fromSrc = '';
+ if ( $file->isLocal() ) {
+ $link = Linker::linkKnown( $file->getTitle() );
+ } else {
+ $link = Linker::makeExternalLink( $file->getDescriptionUrl(),
+ $file->getTitle()->getPrefixedText() );
+ $fromSrc = $this->getContext()->msg(
+ 'shared-repo-from',
+ $file->getRepo()->getDisplayName()
+ )->text();
+ }
+ $out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
+ }
+ $out->addHTML( "</ul></div>\n" );
+ }
+
+ /**
+ * Delete the file, or an earlier version of it
+ */
+ public function delete() {
+ $file = $this->mPage->getFile();
+ if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
+ // Standard article deletion
+ parent::delete();
+ return;
+ }
+
+ $deleter = new FileDeleteForm( $file );
+ $deleter->execute();
+ }
+
+ /**
+ * Display an error with a wikitext description
+ *
+ * @param string $description
+ */
+ function showError( $description ) {
+ $out = $this->getContext()->getOutput();
+ $out->setPageTitle( $this->getContext()->msg( 'internalerror' ) );
+ $out->setRobotPolicy( 'noindex,nofollow' );
+ $out->setArticleRelated( false );
+ $out->enableClientCache( false );
+ $out->addWikiText( $description );
+ }
+
+ /**
+ * Callback for usort() to do link sorts by (namespace, title)
+ * Function copied from Title::compare()
+ *
+ * @param object $a Object page to compare with
+ * @param object $b Object page to compare with
+ * @return int Result of string comparison, or namespace comparison
+ */
+ protected function compare( $a, $b ) {
+ if ( $a->page_namespace == $b->page_namespace ) {
+ return strcmp( $a->page_title, $b->page_title );
+ } else {
+ return $a->page_namespace - $b->page_namespace;
+ }
+ }
+
+ /**
+ * Returns the corresponding $wgImageLimits entry for the selected user option
+ *
+ * @param User $user
+ * @param string $optionName Name of a option to check, typically imagesize or thumbsize
+ * @return array
+ * @since 1.21
+ */
+ public function getImageLimitsFromOption( $user, $optionName ) {
+ global $wgImageLimits;
+
+ $option = $user->getIntOption( $optionName );
+ if ( !isset( $wgImageLimits[$option] ) ) {
+ $option = User::getDefaultOption( $optionName );
+ }
+
+ // The user offset might still be incorrect, specially if
+ // $wgImageLimits got changed (see bug #8858).
+ if ( !isset( $wgImageLimits[$option] ) ) {
+ // Default to the first offset in $wgImageLimits
+ $option = 0;
+ }
+
+ return isset( $wgImageLimits[$option] )
+ ? $wgImageLimits[$option]
+ : [ 800, 600 ]; // if nothing is set, fallback to a hardcoded default
+ }
+
+ /**
+ * Output a drop-down box for language options for the file
+ *
+ * @param array $langChoices Array of string language codes
+ * @param string $curLang Language code file is being viewed in.
+ * @param string $defaultLang Language code that image is rendered in by default
+ * @return string HTML to insert underneath image.
+ */
+ protected function doRenderLangOpt( array $langChoices, $curLang, $defaultLang ) {
+ global $wgScript;
+ sort( $langChoices );
+ $curLang = wfBCP47( $curLang );
+ $defaultLang = wfBCP47( $defaultLang );
+ $opts = '';
+ $haveCurrentLang = false;
+ $haveDefaultLang = false;
+
+ // We make a list of all the language choices in the file.
+ // Additionally if the default language to render this file
+ // is not included as being in this file (for example, in svgs
+ // usually the fallback content is the english content) also
+ // include a choice for that. Last of all, if we're viewing
+ // the file in a language not on the list, add it as a choice.
+ foreach ( $langChoices as $lang ) {
+ $code = wfBCP47( $lang );
+ $name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
+ if ( $name !== '' ) {
+ $display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
+ } else {
+ $display = $code;
+ }
+ $opts .= "\n" . Xml::option( $display, $code, $curLang === $code );
+ if ( $curLang === $code ) {
+ $haveCurrentLang = true;
+ }
+ if ( $defaultLang === $code ) {
+ $haveDefaultLang = true;
+ }
+ }
+ if ( !$haveDefaultLang ) {
+ // Its hard to know if the content is really in the default language, or
+ // if its just unmarked content that could be in any language.
+ $opts = Xml::option(
+ $this->getContext()->msg( 'img-lang-default' )->text(),
+ $defaultLang,
+ $defaultLang === $curLang
+ ) . $opts;
+ }
+ if ( !$haveCurrentLang && $defaultLang !== $curLang ) {
+ $name = Language::fetchLanguageName( $curLang, $this->getContext()->getLanguage()->getCode() );
+ if ( $name !== '' ) {
+ $display = $this->getContext()->msg( 'img-lang-opt', $curLang, $name )->text();
+ } else {
+ $display = $curLang;
+ }
+ $opts = Xml::option( $display, $curLang, true ) . $opts;
+ }
+
+ $select = Html::rawElement(
+ 'select',
+ [ 'id' => 'mw-imglangselector', 'name' => 'lang' ],
+ $opts
+ );
+ $submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
+
+ $formContents = $this->getContext()->msg( 'img-lang-info' )
+ ->rawParams( $select, $submit )
+ ->parse();
+ $formContents .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
+
+ $langSelectLine = Html::rawElement( 'div', [ 'id' => 'mw-imglangselector-line' ],
+ Html::rawElement( 'form', [ 'action' => $wgScript ], $formContents )
+ );
+ return $langSelectLine;
+ }
+
+ /**
+ * Get the width and height to display image at.
+ *
+ * @note This method assumes that it is only called if one
+ * of the dimensions are bigger than the max, or if the
+ * image is vectorized.
+ *
+ * @param int $maxWidth Max width to display at
+ * @param int $maxHeight Max height to display at
+ * @param int $width Actual width of the image
+ * @param int $height Actual height of the image
+ * @throws MWException
+ * @return array Array (width, height)
+ */
+ protected function getDisplayWidthHeight( $maxWidth, $maxHeight, $width, $height ) {
+ if ( !$maxWidth || !$maxHeight ) {
+ // should never happen
+ throw new MWException( 'Using a choice from $wgImageLimits that is 0x0' );
+ }
+
+ if ( !$width || !$height ) {
+ return [ 0, 0 ];
+ }
+
+ # Calculate the thumbnail size.
+ if ( $width <= $maxWidth && $height <= $maxHeight ) {
+ // Vectorized image, do nothing.
+ } elseif ( $width / $height >= $maxWidth / $maxHeight ) {
+ # The limiting factor is the width, not the height.
+ $height = round( $height * $maxWidth / $width );
+ $width = $maxWidth;
+ # Note that $height <= $maxHeight now.
+ } else {
+ $newwidth = floor( $width * $maxHeight / $height );
+ $height = round( $height * $newwidth / $width );
+ $width = $newwidth;
+ # Note that $height <= $maxHeight now, but might not be identical
+ # because of rounding.
+ }
+ return [ $width, $height ];
+ }
+
+ /**
+ * Get alternative thumbnail sizes.
+ *
+ * @note This will only list several alternatives if thumbnails are rendered on 404
+ * @param int $origWidth Actual width of image
+ * @param int $origHeight Actual height of image
+ * @return array An array of [width, height] pairs.
+ */
+ protected function getThumbSizes( $origWidth, $origHeight ) {
+ global $wgImageLimits;
+ if ( $this->displayImg->getRepo()->canTransformVia404() ) {
+ $thumbSizes = $wgImageLimits;
+ // Also include the full sized resolution in the list, so
+ // that users know they can get it. This will link to the
+ // original file asset if mustRender() === false. In the case
+ // that we mustRender, some users have indicated that they would
+ // find it useful to have the full size image in the rendered
+ // image format.
+ $thumbSizes[] = [ $origWidth, $origHeight ];
+ } else {
+ # Creating thumb links triggers thumbnail generation.
+ # Just generate the thumb for the current users prefs.
+ $thumbSizes = [
+ $this->getImageLimitsFromOption( $this->getContext()->getUser(), 'thumbsize' )
+ ];
+ if ( !$this->displayImg->mustRender() ) {
+ // We can safely include a link to the "full-size" preview,
+ // without actually rendering.
+ $thumbSizes[] = [ $origWidth, $origHeight ];
+ }
+ }
+ return $thumbSizes;
+ }
+
+ /**
+ * @see WikiFilePage::getFile
+ * @return bool|File
+ */
+ public function getFile() {
+ return $this->mPage->getFile();
+ }
+
+ /**
+ * @see WikiFilePage::isLocal
+ * @return bool
+ */
+ public function isLocal() {
+ return $this->mPage->isLocal();
+ }
+
+ /**
+ * @see WikiFilePage::getDuplicates
+ * @return array|null
+ */
+ public function getDuplicates() {
+ return $this->mPage->getDuplicates();
+ }
+
+ /**
+ * @see WikiFilePage::getForeignCategories
+ * @return TitleArray|Title[]
+ */
+ public function getForeignCategories() {
+ $this->mPage->getForeignCategories();
+ }
+
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff