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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 */ use MediaWiki\Context\IContextSource; use MediaWiki\Linker\Linker; use MediaWiki\Linker\LinkRenderer; use MediaWiki\Revision\RevisionRecord; use MediaWiki\SpecialPage\SpecialPage; use MediaWiki\Title\Title; use MediaWiki\User\ExternalUserNames; /** * 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; /** * @var MapCacheLRU */ private MapCacheLRU $userLinkCache; /** * @var MapCacheLRU */ private MapCacheLRU $toolLinkCache; /** * @param IContextSource $context * @param string[] $messages * @param LinkRenderer $linkRenderer */ public function __construct( IContextSource $context, $messages, LinkRenderer $linkRenderer ) { $this->context = $context; $this->messages = $messages; $this->linkRenderer = $linkRenderer; $this->userLinkCache = new MapCacheLRU( 50 ); $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( $logType ) { $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 { /** * UserLink requires parser to render which when run on thousands of records can add * up to significant amount of processing time. * @see RCCacheEntryFactory::newFromRecentChange */ $userLink = $this->userLinkCache->getWithSetCallback( $this->userLinkCache->makeKey( $cacheEntry->mAttribs['rc_user_text'], $this->context->getUser()->getName(), $this->context->getLanguage()->getCode() ), static fn () => Linker::userLink( $cacheEntry->mAttribs['rc_user'], $cacheEntry->mAttribs['rc_user_text'], ExternalUserNames::getLocal( $cacheEntry->mAttribs['rc_user_text'] ) ) ); } return $userLink; } /** * @param string $key * * @return string */ private function getMessage( $key ) { return $this->messages[$key]; } }
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