%PDF-
%PDF-
Mini Shell
Mini Shell
<?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();
// Intial state is collapsed
// see filepage.css and mediawiki.action.view.metadata module.
$r .= "<table id=\"mw_metadata\" class=\"mw_metadata collapsed\">\n";
foreach ( $metadata as $type => $stuff ) {
foreach ( $stuff as $v ) {
$class = str_replace( ' ', '_', $v['id'] );
if ( $type == 'collapsed' ) {
$class .= ' mw-metadata-collapsible';
}
$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 getEmptyPageParserOutput method.
*
* Omit noarticletext if sharedupload; text will be fetched from the
* shared upload server if possible.
*
* @param ParserOptions $options
* @return ParserOutput
*/
public function getEmptyPageParserOutput( ParserOptions $options ) {
$this->loadFile();
if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getId() ) {
return new ParserOutput();
}
return parent::getEmptyPageParserOutput( $options );
}
private function getLanguageForRendering( WebRequest $request, File $file ) {
$handler = $this->displayImg->getHandler();
if ( !$handler ) {
return null;
}
$requestLanguage = $request->getVal( 'lang' );
if ( !is_null( $requestLanguage ) ) {
if ( $handler->validateParam( 'lang', $requestLanguage ) ) {
return $requestLanguage;
}
}
return $handler->getDefaultRenderLanguage( $this->displayImg );
}
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 = $this->getLanguageForRendering( $request, $this->displayImg );
if ( !is_null( $renderLang ) ) {
$params['lang'] = $renderLang;
}
$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(),
htmlspecialchars( $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(),
htmlspecialchars( $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.
// phpcs:disable Generic.Files.LineLength
$out->addWikiText( <<<EOT
<div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
<div class="mediaWarning">$warning</div>
EOT
);
// phpcs:enable
} else {
$out->addWikiText( <<<EOT
<div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
</div>
EOT
);
}
$renderLangOptions = $this->displayImg->getAvailableLanguages();
if ( count( $renderLangOptions ) >= 1 ) {
$out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $renderLang ) );
}
// Add cannot animate thumbnail warning
if ( !$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', 'protect' ],
$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
*/
protected 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
*/
protected 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()
)->escaped();
}
$out->addHTML( "<li>{$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 ) {
return $a->page_namespace <=> $b->page_namespace
?: strcmp( $a->page_title, $b->page_title );
}
/**
* 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 T10858).
if ( !isset( $wgImageLimits[$option] ) ) {
// Default to the first offset in $wgImageLimits
$option = 0;
}
// if nothing is set, fallback to a hardcoded default
return $wgImageLimits[$option] ?? [ 800, 600 ];
}
/**
* Output a drop-down box for language options for the file
*
* @param array $langChoices Array of string language codes
* @param string $renderLang Language code for the language we want the file to rendered in.
* @return string HTML to insert underneath image.
*/
protected function doRenderLangOpt( array $langChoices, $renderLang ) {
global $wgScript;
$opts = '';
$matchedRenderLang = $this->displayImg->getMatchedLanguage( $renderLang );
foreach ( $langChoices as $lang ) {
$opts .= $this->createXmlOptionStringForLanguage(
$lang,
$matchedRenderLang === $lang
);
}
// Allow for the default case in an svg <switch> that is displayed if no
// systemLanguage attribute matches
$opts .= "\n" .
Xml::option(
$this->getContext()->msg( 'img-lang-default' )->text(),
'und',
is_null( $matchedRenderLang )
);
$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;
}
/**
* @param $lang string
* @param $selected bool
* @return string
*/
private function createXmlOptionStringForLanguage( $lang, $selected ) {
$code = LanguageCode::bcp47( $lang );
$name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
if ( $name !== '' ) {
$display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
} else {
$display = $code;
}
return "\n" .
Xml::option(
$display,
$lang,
$selected
);
}
/**
* 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();
}
}
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