1 files changed, 170 insertions, 0 deletions
diff --git a/www/wiki/extensions/Translate/messagegroups/RecentMessageGroup.php b/www/wiki/extensions/Translate/messagegroups/RecentMessageGroup.php
new file mode 100644
index 00000000..60593494
--- /dev/null
+++ b/www/wiki/extensions/Translate/messagegroups/RecentMessageGroup.php
@@ -0,0 +1,170 @@
+<?php
+/**
+ * This file contains an unmanaged message group implementation.
+ *
+ * @file
+ * @author Niklas Laxström
+ * @author Siebrand Mazeland
+ * @copyright Copyright © 2008-2013, Niklas Laxström, Siebrand Mazeland
+ * @license GPL-2.0-or-later
+ */
+
+/**
+ * @since 2011-11-28
+ * @ingroup MessageGroup
+ */
+class RecentMessageGroup extends WikiMessageGroup {
+	/*
+	 * Yes this is very ugly hack and should not be removed.
+	 * @see MessageCollection::getPages()
+	 */
+	protected $namespace = false;
+
+	protected $language;
+
+	/**
+	 * These groups are always generated for one language. Method setLanguage
+	 * must be called before calling getDefinitions.
+	 */
+	public function __construct() {
+	}
+
+	public function setLanguage( $code ) {
+		$this->language = $code;
+	}
+
+	public function getId() {
+		return '!recent';
+	}
+
+	public function getLabel( IContextSource $context = null ) {
+		$msg = wfMessage( 'translate-dynagroup-recent-label' );
+		$msg = self::addContext( $msg, $context );
+
+		return $msg->plain();
+	}
+
+	public function getDescription( IContextSource $context = null ) {
+		$msg = wfMessage( 'translate-dynagroup-recent-desc' );
+		$msg = self::addContext( $msg, $context );
+
+		return $msg->plain();
+	}
+
+	protected function getRCCutoff() {
+		$db = wfGetDB( DB_REPLICA );
+		$tables = 'recentchanges';
+		$max = $db->selectField( $tables, 'MAX(rc_id)', [], __METHOD__ );
+
+		return max( 0, $max - 50000 );
+	}
+
+	/**
+	 * Allows subclasses to partially customize the query.
+	 * @return array
+	 */
+	protected function getQueryConditions() {
+		global $wgTranslateMessageNamespaces;
+		$db = wfGetDB( DB_REPLICA );
+		$conds = [
+			'rc_title ' . $db->buildLike( $db->anyString(), '/' . $this->language ),
+			'rc_namespace' => $wgTranslateMessageNamespaces,
+			'rc_type != ' . RC_LOG,
+			'rc_id > ' . $this->getRCCutoff(),
+		];
+
+		return $conds;
+	}
+
+	/**
+	 * Allows subclasses to filter out more unwanted messages.
+	 *
+	 * @param MessageHandle $msg
+	 * @return bool
+	 */
+	protected function matchingMessage( MessageHandle $msg ) {
+		return true;
+	}
+
+	public function getDefinitions() {
+		if ( !$this->language ) {
+				throw new MWException( 'Language not set' );
+		}
+
+		$db = wfGetDB( DB_REPLICA );
+
+		if ( is_callable( RecentChange::class, 'getQueryInfo' ) ) {
+			$rcQuery = RecentChange::getQueryInfo();
+			$tables = $rcQuery['tables'];
+			$joins = $rcQuery['joins'];
+		} else {
+			$tables = 'recentchanges';
+			$joins = [];
+		}
+
+		$fields = [ 'rc_namespace', 'rc_title' ];
+		$conds = $this->getQueryConditions();
+		$options = [
+			'ORDER BY' => 'rc_id DESC',
+			'LIMIT' => 5000
+		];
+		$res = $db->select( $tables, $fields, $conds, __METHOD__, $options, $joins );
+
+		$groupIdsPreload = [];
+		foreach ( $res as $row ) {
+			$title = Title::makeTitle( $row->rc_namespace, $row->rc_title );
+			$handle = new MessageHandle( $title );
+			if ( $handle->isValid() ) {
+				$groupIdsPreload[] = $handle->getGroup()->getId();
+			}
+		}
+		TranslateMetadata::preloadGroups( $groupIdsPreload );
+
+		$defs = [];
+		foreach ( $res as $row ) {
+			$title = Title::makeTitle( $row->rc_namespace, $row->rc_title );
+			$handle = new MessageHandle( $title );
+
+			if ( !$handle->isValid() || !$this->matchingMessage( $handle ) ) {
+				continue;
+			}
+
+			$messageKey = $handle->getKey();
+			$fullKey = $row->rc_namespace . ':' . $messageKey;
+
+			/* Note: due to bugs, getMessage might return null even for
+			 * known messages. These negatives are not cached, but that
+			 * should be rare enough case to not affect performance. */
+			if ( !isset( $defs[$fullKey] ) ) {
+				$group = $handle->getGroup();
+				$msg = $group->getMessage( $messageKey, $group->getSourceLanguage() );
+
+				if ( $msg !== null ) {
+					$defs[$fullKey] = $msg;
+				}
+			}
+		}
+
+		return $defs;
+	}
+
+	public function getChecker() {
+		return null;
+	}
+
+	/**
+	 * Subpage language code, if any in the title, is ignored.
+	 * @param MessageHandle $handle
+	 * @return null|string
+	 * @throws MWException
+	 */
+	public function getMessageContent( MessageHandle $handle ) {
+		$groupId = MessageIndex::getPrimaryGroupId( $handle );
+		$group = MessageGroups::getGroup( $groupId );
+		if ( $group ) {
+			return $group->getMessage( $handle->getKey(), $group->getSourceLanguage() );
+		}
+
+		throw new MWException( 'Could not find group for ' . $handle->getKey() );
+	}
+}