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mediawiki_ynh/sources/mediawiki/includes/ImagePage.php

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<?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
*/
/**
* Class for viewing MediaWiki file description pages
*
* @ingroup Media
*/
class ImagePage extends Article {
/**
* @var File
*/
private $displayImg;
/**
* @var FileRepo
*/
private $repo;
private $fileLoaded;
var $mExtraDescription = false;
/**
* @param $title Title
* @return WikiFilePage
*/
protected function newPage( Title $title ) {
// Overload mPage with a file-specific page
return new WikiFilePage( $title );
}
/**
* Constructor from a page id
* @param int $id article ID to load
* @return ImagePage|null
*/
public static function newFromID( $id ) {
$t = Title::newFromID( $id );
# @todo FIXME: Doesn't inherit right
return $t == null ? null : new self( $t );
# return $t == null ? null : new static( $t ); // PHP 5.3
}
/**
* @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;
wfRunHooks( 'ImagePageFindFile', array( $this, &$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 ) {
// mTitle is the same as the redirect target so ask Article
// to perform the redirect for us.
$request->setVal( 'diffonly', 'true' );
parent::view();
return;
} else {
// mTitle is not the same as the redirect target so it is
// probably the redirect page itself. Fake the redirect symbol
$out->setPageTitle( $this->getTitle()->getPrefixedText() );
$out->addHTML( $this->viewRedirect( Title::makeTitle( NS_FILE, $this->mPage->getFile()->getName() ),
/* $appendSubtitle */ true, /* $forceKnown */ true ) );
$this->mPage->doViewUpdates( $this->getContext()->getUser() );
return;
}
}
if ( $wgShowEXIF && $this->displayImg->exists() ) {
// @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
$formattedMetadata = $this->displayImg->formatMetadata();
$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', array( '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() );
}
# Show shared description, if needed
if ( $this->mExtraDescription ) {
$fol = wfMessage( 'shareddescriptionfollows' );
if ( !$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',
array( 'id' => 'filelinks' ),
wfMessage( '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 = '';
wfRunHooks( 'ImagePageAfterImageLinks', array( $this, &$html ) );
if ( $html ) {
$out->addHTML( $html );
}
if ( $showmeta ) {
$out->addHTML( Xml::element(
'h2',
array( 'id' => 'metadata' ),
wfMessage( 'metadata' )->text() ) . "\n" );
$out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
$out->addModules( array( 'mediawiki.action.view.metadata' ) );
}
// Add remote Filepage.css
if ( !$this->repo->isLocal() ) {
$css = $this->repo->getDescriptionStylesheetUrl();
if ( $css ) {
$out->addStyle( $css );
}
}
// always show the local local Filepage.css, bug 29277
$out->addModuleStyles( 'filepage' );
}
/**
* @return File
*/
public function getDisplayedFile() {
$this->loadFile();
return $this->displayImg;
}
/**
* Create the TOC
*
* @param $metadata Boolean: whether or not to show the metadata link
* @return String
*/
protected function showTOC( $metadata ) {
$r = array(
'<li><a href="#file">' . wfMessage( 'file-anchor-link' )->escaped() . '</a></li>',
'<li><a href="#filehistory">' . wfMessage( 'filehist' )->escaped() . '</a></li>',
'<li><a href="#filelinks">' . wfMessage( 'imagelinks' )->escaped() . '</a></li>',
);
if ( $metadata ) {
$r[] = '<li><a href="#metadata">' . wfMessage( 'metadata' )->escaped() . '</a></li>';
}
wfRunHooks( 'ImagePageShowTOC', array( $this, &$r ) );
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 .= wfMessage( 'metadata-help' )->plain();
$r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
foreach ( $metadata as $type => $stuff ) {
foreach ( $stuff as $v ) {
# @todo FIXME: Why is this using escapeId for a class?!
$class = Sanitizer::escapeId( $v['id'] );
if ( $type == 'collapsed' ) {
$class .= ' collapsable'; // sic
}
$r .= "<tr class=\"$class\">\n";
$r .= "<th>{$v['name']}</th>\n";
$r .= "<td>{$v['value']}</td>\n</tr>";
}
}
$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 $wgImageLimits, $wgEnableUploads, $wgSend404Code;
$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 = array();
$page = 1;
} else {
$params = array( 'page' => $page );
}
$renderLang = $request->getVal( 'lang' );
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 = $filename;
wfRunHooks( 'ImageOpenShowImageInlineBefore', array( &$this, &$out ) );
if ( $this->displayImg->allowInlineDisplay() ) {
# image
# "Download high res version" link below the image
# $msgsize = wfMessage( '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 ) {
# Calculate the thumbnail size.
# First case, the limiting factor is the width, not the height.
if ( $width / $height >= $maxWidth / $maxHeight ) { // FIXME: Possible division by 0. bug 36911
$height = round( $height * $maxWidth / $width ); // FIXME: Possible division by 0. bug 36911
$width = $maxWidth;
# Note that $height <= $maxHeight now.
} else {
$newwidth = floor( $width * $maxHeight / $height ); // FIXME: Possible division by 0. bug 36911
$height = round( $height * $newwidth / $width ); // FIXME: Possible division by 0. bug 36911
$width = $newwidth;
# Note that $height <= $maxHeight now, but might not be identical
# because of rounding.
}
$linktext = wfMessage( 'show-big-image' )->escaped();
if ( $this->displayImg->getRepo()->canTransformVia404() ) {
$thumbSizes = $wgImageLimits;
} else {
# Creating thumb links triggers thumbnail generation.
# Just generate the thumb for the current users prefs.
$thumbSizes = array( $this->getImageLimitsFromOption( $user, 'thumbsize' ) );
}
# Generate thumbnails or thumbnail links as needed...
$otherSizes = array();
foreach ( $thumbSizes as $size ) {
if ( $size[0] < $width_orig && $size[1] < $height_orig
&& $size[0] != $width && $size[1] != $height )
{
$sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
if ( $sizeLink ) {
$otherSizes[] = $sizeLink;
}
}
}
$msgsmall = '';
$sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
if ( $sizeLinkBigImagePreview ) {
$msgsmall .= wfMessage( 'show-big-image-preview' )->
rawParams( $sizeLinkBigImagePreview )->
parse();
}
if ( count( $otherSizes ) ) {
$msgsmall .= ' ' .
Html::rawElement( 'span', array( 'class' => 'mw-filepage-other-resolutions' ),
wfMessage( '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 = '';
} elseif ( $this->displayImg->isVectorized() ) {
# For vectorized images, full size is just the frame size
$msgsmall = '';
} else {
# Image is small enough to show full size on image page
$msgsmall = wfMessage( 'file-nohires' )->parse();
}
$params['width'] = $width;
$params['height'] = $height;
$thumbnail = $this->displayImg->transform( $params );
$anchorclose = Html::rawElement( 'div', array( '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 = array(
'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 = $out->parse( wfMessage( 'imgmultipageprev' )->text(), false );
$link = Linker::linkKnown(
$this->getTitle(),
$label,
array(),
array( 'page' => $page - 1 )
);
$thumb1 = Linker::makeThumbLinkObj( $this->getTitle(), $this->displayImg, $link, $label, 'none',
array( 'page' => $page - 1 ) );
} else {
$thumb1 = '';
}
if ( $page < $count ) {
$label = wfMessage( 'imgmultipagenext' )->text();
$link = Linker::linkKnown(
$this->getTitle(),
$label,
array(),
array( 'page' => $page + 1 )
);
$thumb2 = Linker::makeThumbLinkObj( $this->getTitle(), $this->displayImg, $link, $label, 'none',
array( 'page' => $page + 1 ) );
} else {
$thumb2 = '';
}
global $wgScript;
$formParams = array(
'name' => 'pageselector',
'action' => $wgScript,
);
$options = array();
for ( $i = 1; $i <= $count; $i++ ) {
$options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
}
$select = Xml::tags( 'select',
array( 'id' => 'pageselector', 'name' => 'page' ),
implode( "\n", $options ) );
$out->addHTML(
'</td><td><div class="multipageimagenavbox">' .
Xml::openElement( 'form', $formParams ) .
Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
wfMessage( 'imgmultigoto' )->rawParams( $select )->parse() .
Xml::submitButton( wfMessage( 'imgmultigo' )->text() ) .
Xml::closeElement( 'form' ) .
"<hr />$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( array( 'file-link' => true ) ) .
"</div>\n" );
}
$longDesc = wfMessage( 'parentheses', $this->displayImg->getLongDesc() )->text();
$medialink = "[[Media:$filename|$linktext]]";
if ( !$this->displayImg->isSafeFile() ) {
$warning = wfMessage( '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 bug 25277.
$out->addWikiText( <<<EOT
<div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
<div class="mediaWarning">$warning</div>
EOT
);
} else {
$out->addWikiText( <<<EOT
<div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
</div>
EOT
);
}
// 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() ) {
# No article exists either
# Show deletion log to be consistent with normal articles
LogEventsList::showLogExtract(
$out,
array( 'delete', 'move' ),
$this->getTitle()->getPrefixedText(),
'',
array( 'lim' => 10,
'conds' => array( "log_action != 'revision'" ),
'showIfEmpty' => false,
'msgKey' => array( 'moveddeleted-notice' )
)
);
}
if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
// Only show an upload link if the user can upload
$uploadTitle = SpecialPage::getTitleFor( 'Upload' );
$nofile = array(
'filepage-nofile-link',
$uploadTitle->getFullURL( array( '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 articles.
$request->response()->header( 'HTTP/1.1 404 Not Found' );
}
}
$out->setFileVersion( $this->displayImg );
}
/**
* Creates an thumbnail of specified size and returns an HTML link to it
* @param array $params Scaler parameters
* @param $width int
* @param $height int
* @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', array(
'href' => $thumbnail->getUrl(),
'class' => 'mw-thumbnail-link'
), wfMessage( '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();
/* 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 && wfMessage( 'sharedupload-desc-here' )->plain() !== '-' ) {
$out->wrapWikiMsg( $wrap, array( 'sharedupload-desc-here', $repo, $descUrl ) );
} elseif ( $descUrl && wfMessage( 'sharedupload-desc-there' )->plain() !== '-' ) {
$out->wrapWikiMsg( $wrap, array( 'sharedupload-desc-there', $repo, $descUrl ) );
} else {
$out->wrapWikiMsg( $wrap, array( 'sharedupload', $repo ), ''/*BACKCOMPAT*/ );
}
if ( $descText ) {
$this->mExtraDescription = $descText;
}
}
public function getUploadUrl() {
$this->loadFile();
$uploadTitle = SpecialPage::getTitleFor( 'Upload' );
return $uploadTitle->getFullURL( array(
'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()->userCan( 'upload', $this->getContext()->getUser() );
if ( $canUpload && UploadBase::userCanReUpload( $this->getContext()->getUser(), $this->mPage->getFile()->name ) ) {
$ulink = Linker::makeExternalLink( $this->getUploadUrl(), wfMessage( '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" );
}
protected function closeShowImage() { } # For overloading
/**
* 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 $target
* @param $limit
* @return ResultWrapper
*/
protected function queryImageLinks( $target, $limit ) {
$dbr = wfGetDB( DB_SLAVE );
return $dbr->select(
array( 'imagelinks', 'page' ),
array( 'page_namespace', 'page_title', 'page_is_redirect', 'il_to' ),
array( 'il_to' => $target, 'il_from = page_id' ),
__METHOD__,
array( 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', )
);
}
protected function imageLinks() {
$limit = 100;
$out = $this->getContext()->getOutput();
$res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
$rows = array();
$redirects = array();
foreach ( $res as $row ) {
if ( $row->page_is_redirect ) {
$redirects[$row->page_title] = array();
}
$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',
array( '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',
array( 'class' => 'mw-imagepage-linkstoimage' ) ) . "\n"
);
$count = 0;
// Sort the list by namespace:title
usort( $rows, array( $this, 'compare' ) );
// Create links for every element
$currentCount = 0;
foreach ( $rows as $element ) {
$currentCount++;
if ( $currentCount > $limit ) {
break;
}
$query = array();
# 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, array(), $query
);
if ( !isset( $redirects[$element->page_title] ) ) {
# No redirects
$liContents = $link;
} elseif ( count( $redirects[$element->page_title] ) === 0 ) {
# Redirect without usages
$liContents = wfMessage( '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',
array( 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ),
$link2
) . "\n";
}
$ul = Html::rawElement(
'ul',
array( 'class' => 'mw-imagepage-redirectstofile' ),
$li
) . "\n";
$liContents = wfMessage( 'linkstoimage-redirect' )->rawParams(
$link, $ul )->parse();
}
$out->addHTML( Html::rawElement(
'li',
array( '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 = wfMessage( '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 $description String
*/
function showError( $description ) {
$out = $this->getContext()->getOutput();
$out->setPageTitle( wfMessage( '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 $a object page to compare with
* @param $b object page to compare with
* @return Integer: 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]
: array( 800, 600 ); // if nothing is set, fallback to a hardcoded default
}
}
/**
* Builds the image revision log shown on image pages
*
* @ingroup Media
*/
class ImageHistoryList extends ContextSource {
/**
* @var Title
*/
protected $title;
/**
* @var File
*/
protected $img;
/**
* @var ImagePage
*/
protected $imagePage;
/**
* @var File
*/
protected $current;
protected $repo, $showThumb;
protected $preventClickjacking = false;
/**
* @param ImagePage $imagePage
*/
public function __construct( $imagePage ) {
global $wgShowArchiveThumbnails;
$this->current = $imagePage->getFile();
$this->img = $imagePage->getDisplayedFile();
$this->title = $imagePage->getTitle();
$this->imagePage = $imagePage;
$this->showThumb = $wgShowArchiveThumbnails && $this->img->canRender();
$this->setContext( $imagePage->getContext() );
}
/**
* @return ImagePage
*/
public function getImagePage() {
return $this->imagePage;
}
/**
* @return File
*/
public function getFile() {
return $this->img;
}
/**
* @param $navLinks string
* @return string
*/
public function beginImageHistoryList( $navLinks = '' ) {
return Xml::element( 'h2', array( 'id' => 'filehistory' ), $this->msg( 'filehist' )->text() ) . "\n"
. "<div id=\"mw-imagepage-section-filehistory\">\n"
. $this->msg( 'filehist-help' )->parseAsBlock()
. $navLinks . "\n"
. Xml::openElement( 'table', array( 'class' => 'wikitable filehistory' ) ) . "\n"
. '<tr><td></td>'
. ( $this->current->isLocal() && ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? '<td></td>' : '' )
. '<th>' . $this->msg( 'filehist-datetime' )->escaped() . '</th>'
. ( $this->showThumb ? '<th>' . $this->msg( 'filehist-thumb' )->escaped() . '</th>' : '' )
. '<th>' . $this->msg( 'filehist-dimensions' )->escaped() . '</th>'
. '<th>' . $this->msg( 'filehist-user' )->escaped() . '</th>'
. '<th>' . $this->msg( 'filehist-comment' )->escaped() . '</th>'
. "</tr>\n";
}
/**
* @param $navLinks string
* @return string
*/
public function endImageHistoryList( $navLinks = '' ) {
return "</table>\n$navLinks\n</div>\n";
}
/**
* @param $iscur
* @param $file File
* @return string
*/
public function imageHistoryLine( $iscur, $file ) {
global $wgContLang;
$user = $this->getUser();
$lang = $this->getLanguage();
$timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
$img = $iscur ? $file->getName() : $file->getArchiveName();
$userId = $file->getUser( 'id' );
$userText = $file->getUser( 'text' );
$description = $file->getDescription( File::FOR_THIS_USER, $user );
$local = $this->current->isLocal();
$row = $selected = '';
// Deletion link
if ( $local && ( $user->isAllowedAny( 'delete', 'deletedhistory' ) ) ) {
$row .= '<td>';
# Link to remove from history
if ( $user->isAllowed( 'delete' ) ) {
$q = array( 'action' => 'delete' );
if ( !$iscur ) {
$q['oldimage'] = $img;
}
$row .= Linker::linkKnown(
$this->title,
$this->msg( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' )->escaped(),
array(), $q
);
}
# Link to hide content. Don't show useless link to people who cannot hide revisions.
$canHide = $user->isAllowed( 'deleterevision' );
if ( $canHide || ( $user->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
if ( $user->isAllowed( 'delete' ) ) {
$row .= '<br />';
}
// If file is top revision or locked from this user, don't link
if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
$del = Linker::revDeleteLinkDisabled( $canHide );
} else {
list( $ts, ) = explode( '!', $img, 2 );
$query = array(
'type' => 'oldimage',
'target' => $this->title->getPrefixedText(),
'ids' => $ts,
);
$del = Linker::revDeleteLink( $query,
$file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
}
$row .= $del;
}
$row .= '</td>';
}
// Reversion link/current indicator
$row .= '<td>';
if ( $iscur ) {
$row .= $this->msg( 'filehist-current' )->escaped();
} elseif ( $local && $this->title->quickUserCan( 'edit', $user )
&& $this->title->quickUserCan( 'upload', $user )
) {
if ( $file->isDeleted( File::DELETED_FILE ) ) {
$row .= $this->msg( 'filehist-revert' )->escaped();
} else {
$row .= Linker::linkKnown(
$this->title,
$this->msg( 'filehist-revert' )->escaped(),
array(),
array(
'action' => 'revert',
'oldimage' => $img,
'wpEditToken' => $user->getEditToken( $img )
)
);
}
}
$row .= '</td>';
// Date/time and image link
if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
$selected = "class='filehistory-selected'";
}
$row .= "<td $selected style='white-space: nowrap;'>";
if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
# Don't link to unviewable files
$row .= '<span class="history-deleted">' . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
} elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
if ( $local ) {
$this->preventClickjacking();
$revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
# Make a link to review the image
$url = Linker::linkKnown(
$revdel,
$lang->userTimeAndDate( $timestamp, $user ),
array(),
array(
'target' => $this->title->getPrefixedText(),
'file' => $img,
'token' => $user->getEditToken( $img )
)
);
} else {
$url = $lang->userTimeAndDate( $timestamp, $user );
}
$row .= '<span class="history-deleted">' . $url . '</span>';
} else {
$url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
$row .= Xml::element( 'a', array( 'href' => $url ), $lang->userTimeAndDate( $timestamp, $user ) );
}
$row .= "</td>";
// Thumbnail
if ( $this->showThumb ) {
$row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
}
// Image dimensions + size
$row .= '<td>';
$row .= htmlspecialchars( $file->getDimensionsString() );
$row .= $this->msg( 'word-separator' )->plain();
$row .= '<span style="white-space: nowrap;">';
$row .= $this->msg( 'parentheses' )->rawParams( Linker::formatSize( $file->getSize() ) )->plain();
$row .= '</span>';
$row .= '</td>';
// Uploading user
$row .= '<td>';
// Hide deleted usernames
if ( $file->isDeleted( File::DELETED_USER ) ) {
$row .= '<span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
} else {
if ( $local ) {
$row .= Linker::userLink( $userId, $userText );
$row .= $this->msg( 'word-separator' )->plain();
$row .= '<span style="white-space: nowrap;">';
$row .= Linker::userToolLinks( $userId, $userText );
$row .= '</span>';
} else {
$row .= htmlspecialchars( $userText );
}
}
$row .= '</td>';
// Don't show deleted descriptions
if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
$row .= '<td><span class="history-deleted">' . $this->msg( 'rev-deleted-comment' )->escaped() . '</span></td>';
} else {
$row .= '<td dir="' . $wgContLang->getDir() . '">' . Linker::formatComment( $description, $this->title ) . '</td>';
}
$rowClass = null;
wfRunHooks( 'ImagePageFileHistoryLine', array( $this, $file, &$row, &$rowClass ) );
$classAttr = $rowClass ? " class='$rowClass'" : '';
return "<tr{$classAttr}>{$row}</tr>\n";
}
/**
* @param $file File
* @return string
*/
protected function getThumbForLine( $file ) {
$lang = $this->getLanguage();
$user = $this->getUser();
if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE, $user )
&& !$file->isDeleted( File::DELETED_FILE ) )
{
$params = array(
'width' => '120',
'height' => '120',
);
$timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
$thumbnail = $file->transform( $params );
$options = array(
'alt' => $this->msg( 'filehist-thumbtext',
$lang->userTimeAndDate( $timestamp, $user ),
$lang->userDate( $timestamp, $user ),
$lang->userTime( $timestamp, $user ) )->text(),
'file-link' => true,
);
if ( !$thumbnail ) {
return $this->msg( 'filehist-nothumb' )->escaped();
}
return $thumbnail->toHtml( $options );
} else {
return $this->msg( 'filehist-nothumb' )->escaped();
}
}
/**
* @param $enable bool
*/
protected function preventClickjacking( $enable = true ) {
$this->preventClickjacking = $enable;
}
/**
* @return bool
*/
public function getPreventClickjacking() {
return $this->preventClickjacking;
}
}
class ImageHistoryPseudoPager extends ReverseChronologicalPager {
protected $preventClickjacking = false;
/**
* @var File
*/
protected $mImg;
/**
* @var Title
*/
protected $mTitle;
/**
* @param ImagePage $imagePage
*/
function __construct( $imagePage ) {
parent::__construct( $imagePage->getContext() );
$this->mImagePage = $imagePage;
$this->mTitle = clone ( $imagePage->getTitle() );
$this->mTitle->setFragment( '#filehistory' );
$this->mImg = null;
$this->mHist = array();
$this->mRange = array( 0, 0 ); // display range
}
/**
* @return Title
*/
function getTitle() {
return $this->mTitle;
}
function getQueryInfo() {
return false;
}
/**
* @return string
*/
function getIndexField() {
return '';
}
/**
* @param $row object
* @return string
*/
function formatRow( $row ) {
return '';
}
/**
* @return string
*/
function getBody() {
$s = '';
$this->doQuery();
if ( count( $this->mHist ) ) {
$list = new ImageHistoryList( $this->mImagePage );
# Generate prev/next links
$navLink = $this->getNavigationBar();
$s = $list->beginImageHistoryList( $navLink );
// Skip rows there just for paging links
for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
$file = $this->mHist[$i];
$s .= $list->imageHistoryLine( !$file->isOld(), $file );
}
$s .= $list->endImageHistoryList( $navLink );
if ( $list->getPreventClickjacking() ) {
$this->preventClickjacking();
}
}
return $s;
}
function doQuery() {
if ( $this->mQueryDone ) {
return;
}
$this->mImg = $this->mImagePage->getFile(); // ensure loading
if ( !$this->mImg->exists() ) {
return;
}
$queryLimit = $this->mLimit + 1; // limit plus extra row
if ( $this->mIsBackwards ) {
// Fetch the file history
$this->mHist = $this->mImg->getHistory( $queryLimit, null, $this->mOffset, false );
// The current rev may not meet the offset/limit
$numRows = count( $this->mHist );
if ( $numRows <= $this->mLimit && $this->mImg->getTimestamp() > $this->mOffset ) {
$this->mHist = array_merge( array( $this->mImg ), $this->mHist );
}
} else {
// The current rev may not meet the offset
if ( !$this->mOffset || $this->mImg->getTimestamp() < $this->mOffset ) {
$this->mHist[] = $this->mImg;
}
// Old image versions (fetch extra row for nav links)
$oiLimit = count( $this->mHist ) ? $this->mLimit : $this->mLimit + 1;
// Fetch the file history
$this->mHist = array_merge( $this->mHist,
$this->mImg->getHistory( $oiLimit, $this->mOffset, null, false ) );
}
$numRows = count( $this->mHist ); // Total number of query results
if ( $numRows ) {
# Index value of top item in the list
$firstIndex = $this->mIsBackwards ?
$this->mHist[$numRows - 1]->getTimestamp() : $this->mHist[0]->getTimestamp();
# Discard the extra result row if there is one
if ( $numRows > $this->mLimit && $numRows > 1 ) {
if ( $this->mIsBackwards ) {
# Index value of item past the index
$this->mPastTheEndIndex = $this->mHist[0]->getTimestamp();
# Index value of bottom item in the list
$lastIndex = $this->mHist[1]->getTimestamp();
# Display range
$this->mRange = array( 1, $numRows - 1 );
} else {
# Index value of item past the index
$this->mPastTheEndIndex = $this->mHist[$numRows - 1]->getTimestamp();
# Index value of bottom item in the list
$lastIndex = $this->mHist[$numRows - 2]->getTimestamp();
# Display range
$this->mRange = array( 0, $numRows - 2 );
}
} else {
# Setting indexes to an empty string means that they will be
# omitted if they would otherwise appear in URLs. It just so
# happens that this is the right thing to do in the standard
# UI, in all the relevant cases.
$this->mPastTheEndIndex = '';
# Index value of bottom item in the list
$lastIndex = $this->mIsBackwards ?
$this->mHist[0]->getTimestamp() : $this->mHist[$numRows - 1]->getTimestamp();
# Display range
$this->mRange = array( 0, $numRows - 1 );
}
} else {
$firstIndex = '';
$lastIndex = '';
$this->mPastTheEndIndex = '';
}
if ( $this->mIsBackwards ) {
$this->mIsFirst = ( $numRows < $queryLimit );
$this->mIsLast = ( $this->mOffset == '' );
$this->mLastShown = $firstIndex;
$this->mFirstShown = $lastIndex;
} else {
$this->mIsFirst = ( $this->mOffset == '' );
$this->mIsLast = ( $numRows < $queryLimit );
$this->mLastShown = $lastIndex;
$this->mFirstShown = $firstIndex;
}
$this->mQueryDone = true;
}
/**
* @param $enable bool
*/
protected function preventClickjacking( $enable = true ) {
$this->preventClickjacking = $enable;
}
/**
* @return bool
*/
public function getPreventClickjacking() {
return $this->preventClickjacking;
}
}
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