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<?php
/**
* 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
*/
namespace MediaWiki\RecentChanges;
use MediaWiki\Context\IContextSource;
use MediaWiki\Linker\Linker;
use MediaWiki\Linker\LinkRenderer;
use MediaWiki\Linker\UserLinkRenderer;
use MediaWiki\Logging\LogPage;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Title\Title;
use MediaWiki\User\ExternalUserNames;
use Wikimedia\HtmlArmor\HtmlArmor;
use Wikimedia\MapCacheLRU\MapCacheLRU;
/**
* Create a RCCacheEntry from a RecentChange to use in EnhancedChangesList
*
* @ingroup RecentChanges
*/
class RCCacheEntryFactory {
/** @var IContextSource */
private $context;
/** @var string[] */
private $messages;
/**
* @var LinkRenderer
*/
private $linkRenderer;
private UserLinkRenderer $userLinkRenderer;
private MapCacheLRU $toolLinkCache;
/**
* @param IContextSource $context
* @param string[] $messages
* @param LinkRenderer $linkRenderer
* @param UserLinkRenderer $userLinkRenderer
*/
public function __construct(
IContextSource $context,
$messages,
LinkRenderer $linkRenderer,
UserLinkRenderer $userLinkRenderer
) {
$this->context = $context;
$this->messages = $messages;
$this->linkRenderer = $linkRenderer;
$this->userLinkRenderer = $userLinkRenderer;
$this->toolLinkCache = new MapCacheLRU( 50 );
}
/**
* @param RecentChange $baseRC
* @param bool $watched
*
* @return RCCacheEntry
*/
public function newFromRecentChange( RecentChange $baseRC, $watched ) {
$user = $this->context->getUser();
$cacheEntry = RCCacheEntry::newFromParent( $baseRC );
// Should patrol-related stuff be shown?
$cacheEntry->unpatrolled = ChangesList::isUnpatrolled( $baseRC, $user );
$cacheEntry->watched = $cacheEntry->mAttribs['rc_type'] == RC_LOG ? false : $watched;
$cacheEntry->numberofWatchingusers = $baseRC->numberofWatchingusers;
$cacheEntry->watchlistExpiry = $baseRC->watchlistExpiry;
$cacheEntry->link = $this->buildCLink( $cacheEntry );
$cacheEntry->timestamp = $this->buildTimestamp( $cacheEntry );
// Make "cur" and "diff" links. Do not use link(), it is too slow if
// called too many times (50% of CPU time on RecentChanges!).
$showDiffLinks = ChangesList::userCan( $cacheEntry, RevisionRecord::DELETED_TEXT, $user );
$cacheEntry->difflink = $this->buildDiffLink( $cacheEntry, $showDiffLinks );
$cacheEntry->curlink = $this->buildCurLink( $cacheEntry, $showDiffLinks );
$cacheEntry->lastlink = $this->buildLastLink( $cacheEntry, $showDiffLinks );
// Make user links
$cacheEntry->userlink = $this->getUserLink( $cacheEntry );
if ( !ChangesList::isDeleted( $cacheEntry, RevisionRecord::DELETED_USER ) ) {
/**
* userToolLinks requires a lot of parser work to process multiple links that are
* rendered there, like contrib page, user talk etc. Often, active
* users will appear multiple times on same run of RecentChanges, and therefore it is
* unnecessary to process it for each RC record separately.
*/
$cacheEntry->usertalklink = $this->toolLinkCache->getWithSetCallback(
$this->toolLinkCache->makeKey(
$cacheEntry->mAttribs['rc_user_text'],
$this->context->getUser()->getName(),
$this->context->getLanguage()->getCode()
),
static fn () => Linker::userToolLinks(
$cacheEntry->mAttribs['rc_user'],
$cacheEntry->mAttribs['rc_user_text'],
// Should the contributions link be red if the user has no edits (using default)
false,
// Customisation flags (using default 0)
0,
// User edit count (using default )
null,
// do not wrap the message in parentheses
false
)
);
}
return $cacheEntry;
}
/**
* @param RCCacheEntry $cacheEntry
*
* @return string
*/
private function buildCLink( RCCacheEntry $cacheEntry ) {
$type = $cacheEntry->mAttribs['rc_type'];
// Log entries
if ( $type == RC_LOG ) {
$logType = $cacheEntry->mAttribs['rc_log_type'];
if ( $logType ) {
$clink = $this->getLogLink( $logType );
} else {
wfDebugLog( 'recentchanges', 'Unexpected log entry with no log type in recent changes' );
$clink = $this->linkRenderer->makeLink( $cacheEntry->getTitle() );
}
// Log entries (old format) and special pages
} elseif ( $cacheEntry->mAttribs['rc_namespace'] == NS_SPECIAL ) {
wfDebugLog( 'recentchanges', 'Unexpected special page in recentchanges' );
$clink = '';
// Edits and everything else
} else {
$clink = $this->linkRenderer->makeKnownLink( $cacheEntry->getTitle() );
}
return $clink;
}
private function getLogLink( string $logType ): string {
$logtitle = SpecialPage::getTitleFor( 'Log', $logType );
$logpage = new LogPage( $logType );
$logname = $logpage->getName()->text();
$logLink = $this->context->msg( 'parentheses' )
->rawParams(
$this->linkRenderer->makeKnownLink( $logtitle, $logname )
)->escaped();
return $logLink;
}
/**
* @param RecentChange $cacheEntry
*
* @return string
*/
private function buildTimestamp( RecentChange $cacheEntry ) {
return $this->context->getLanguage()->userTime(
$cacheEntry->mAttribs['rc_timestamp'],
$this->context->getUser()
);
}
/**
* @param RecentChange $recentChange
*
* @return array
*/
private function buildCurQueryParams( RecentChange $recentChange ) {
return [
'curid' => $recentChange->mAttribs['rc_cur_id'],
'diff' => 0,
'oldid' => $recentChange->mAttribs['rc_this_oldid']
];
}
/**
* @param RecentChange $cacheEntry
* @param bool $showDiffLinks
*
* @return string
*/
private function buildCurLink( RecentChange $cacheEntry, $showDiffLinks ) {
$curMessage = $this->getMessage( 'cur' );
$logTypes = [ RC_LOG ];
if ( $cacheEntry->mAttribs['rc_this_oldid'] == $cacheEntry->getAttribute( 'page_latest' ) ) {
$showDiffLinks = false;
}
if ( !$showDiffLinks || in_array( $cacheEntry->mAttribs['rc_type'], $logTypes ) ) {
$curLink = $curMessage;
} else {
$queryParams = $this->buildCurQueryParams( $cacheEntry );
$curUrl = htmlspecialchars( $cacheEntry->getTitle()->getLinkURL( $queryParams ) );
$curLink = "<a class=\"mw-changeslist-diff-cur\" href=\"$curUrl\">$curMessage</a>";
}
return $curLink;
}
/**
* @param RecentChange $recentChange
*
* @return array
*/
private function buildDiffQueryParams( RecentChange $recentChange ) {
return [
'curid' => $recentChange->mAttribs['rc_cur_id'],
'diff' => $recentChange->mAttribs['rc_this_oldid'],
'oldid' => $recentChange->mAttribs['rc_last_oldid']
];
}
/**
* @param RecentChange $cacheEntry
* @param bool $showDiffLinks
*
* @return string
*/
private function buildDiffLink( RecentChange $cacheEntry, $showDiffLinks ) {
$queryParams = $this->buildDiffQueryParams( $cacheEntry );
$diffMessage = $this->getMessage( 'diff' );
$logTypes = [ RC_NEW, RC_LOG ];
if ( !$showDiffLinks ) {
$diffLink = $diffMessage;
} elseif ( in_array( $cacheEntry->mAttribs['rc_type'], $logTypes ) ) {
$diffLink = $diffMessage;
} elseif ( $cacheEntry->getAttribute( 'rc_type' ) == RC_CATEGORIZE ) {
$rcCurId = $cacheEntry->getAttribute( 'rc_cur_id' );
$pageTitle = Title::newFromID( $rcCurId );
if ( $pageTitle === null ) {
wfDebugLog( 'RCCacheEntryFactory', 'Could not get Title for rc_cur_id: ' . $rcCurId );
return $diffMessage;
}
$diffUrl = htmlspecialchars( $pageTitle->getLinkURL( $queryParams ) );
$diffLink = "<a class=\"mw-changeslist-diff\" href=\"$diffUrl\">$diffMessage</a>";
} else {
$diffUrl = htmlspecialchars( $cacheEntry->getTitle()->getLinkURL( $queryParams ) );
$diffLink = "<a class=\"mw-changeslist-diff\" href=\"$diffUrl\">$diffMessage</a>";
}
return $diffLink;
}
/**
* Builds the link to the previous version
*
* @param RecentChange $cacheEntry
* @param bool $showDiffLinks
*
* @return string
*/
private function buildLastLink( RecentChange $cacheEntry, $showDiffLinks ) {
$lastOldid = $cacheEntry->mAttribs['rc_last_oldid'];
$lastMessage = $this->getMessage( 'last' );
$type = $cacheEntry->mAttribs['rc_type'];
$logTypes = [ RC_LOG ];
// Make "last" link
if ( !$showDiffLinks || !$lastOldid || in_array( $type, $logTypes ) ) {
$lastLink = $lastMessage;
} else {
$lastLink = $this->linkRenderer->makeKnownLink(
$cacheEntry->getTitle(),
new HtmlArmor( $lastMessage ),
[ 'class' => 'mw-changeslist-diff' ],
$this->buildDiffQueryParams( $cacheEntry )
);
}
return $lastLink;
}
/**
* @param RecentChange $cacheEntry
*
* @return string
*/
private function getUserLink( RecentChange $cacheEntry ) {
if ( ChangesList::isDeleted( $cacheEntry, RevisionRecord::DELETED_USER ) ) {
$deletedClass = 'history-deleted';
if ( ChangesList::isDeleted( $cacheEntry, RevisionRecord::DELETED_RESTRICTED ) ) {
$deletedClass .= ' mw-history-suppressed';
}
$userLink = ' <span class="' . $deletedClass . '">' .
$this->context->msg( 'rev-deleted-user' )->escaped() . '</span>';
} else {
return $this->userLinkRenderer->userLink(
$cacheEntry->getPerformerIdentity(),
$this->context,
ExternalUserNames::getLocal( $cacheEntry->mAttribs['rc_user_text'] )
);
}
return $userLink;
}
/**
* @param string $key
*
* @return string
*/
private function getMessage( $key ) {
return $this->messages[$key];
}
}
/** @deprecated class alias since 1.44 */
class_alias( RCCacheEntryFactory::class, 'RCCacheEntryFactory' );