X-Git-Url: http://git.cyclocoop.org/?a=blobdiff_plain;f=includes%2Fpage%2FWikiPage.php;h=4ad2e6577061765b4fca61cb74b5dfd9af665e7a;hb=d7bc247e74e8d1431986bec5482e94e49d7ab99c;hp=d5dfd3d00a0bf126ad98275baee565a6de2f7e71;hpb=01ceb8cc9c0882d17ddc2af2b7fcebf5274bab8d;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/page/WikiPage.php b/includes/page/WikiPage.php
index d5dfd3d00a..4ad2e65770 100644
--- a/includes/page/WikiPage.php
+++ b/includes/page/WikiPage.php
@@ -83,6 +83,11 @@ class WikiPage implements Page, IDBAccessObject {
 	 */
 	protected $mLinksUpdated = '19700101000000';
 
+	const PURGE_CDN_CACHE = 1; // purge CDN cache for page variant URLs
+	const PURGE_CLUSTER_PCACHE = 2; // purge parser cache in the local datacenter
+	const PURGE_GLOBAL_PCACHE = 4; // set page_touched to clear parser cache in all datacenters
+	const PURGE_ALL = 7;
+
 	/**
 	 * Constructor and clear the article
 	 * @param Title $title Reference to a Title object.
@@ -460,7 +465,7 @@ class WikiPage implements Page, IDBAccessObject {
 	 * @return bool
 	 */
 	public function hasViewableContent() {
-		return $this->exists() || $this->mTitle->isAlwaysKnown();
+		return $this->mTitle->isKnown();
 	}
 
 	/**
@@ -1111,19 +1116,38 @@ class WikiPage implements Page, IDBAccessObject {
 
 	/**
 	 * Perform the actions of a page purging
+	 * @param integer $flags Bitfield of WikiPage::PURGE_* constants
 	 * @return bool
 	 */
-	public function doPurge() {
+	public function doPurge( $flags = self::PURGE_ALL ) {
 		if ( !Hooks::run( 'ArticlePurge', [ &$this ] ) ) {
 			return false;
 		}
 
-		$this->mTitle->invalidateCache();
-		// Send purge after above page_touched update was committed
-		DeferredUpdates::addUpdate(
-			new CdnCacheUpdate( $this->mTitle->getCdnUrls() ),
-			DeferredUpdates::PRESEND
-		);
+		if ( ( $flags & self::PURGE_GLOBAL_PCACHE ) == self::PURGE_GLOBAL_PCACHE ) {
+			// Set page_touched in the database to invalidate all DC caches
+			$this->mTitle->invalidateCache();
+		} elseif ( ( $flags & self::PURGE_CLUSTER_PCACHE ) == self::PURGE_CLUSTER_PCACHE ) {
+			// Delete the parser options key in the local cluster to invalidate the DC cache
+			ParserCache::singleton()->deleteOptionsKey( $this );
+			// Avoid sending HTTP 304s in ViewAction to the client who just issued the purge
+			$cache = ObjectCache::getLocalClusterInstance();
+			$cache->set(
+				$cache->makeKey( 'page', 'last-dc-purge', $this->getId() ),
+				wfTimestamp( TS_MW ),
+				$cache::TTL_HOUR
+			);
+		}
+
+		if ( ( $flags & self::PURGE_CDN_CACHE ) == self::PURGE_CDN_CACHE ) {
+			// Clear any HTML file cache
+			HTMLFileCache::clearFileCache( $this->getTitle() );
+			// Send purge after any page_touched above update was committed
+			DeferredUpdates::addUpdate(
+				new CdnCacheUpdate( $this->mTitle->getCdnUrls() ),
+				DeferredUpdates::PRESEND
+			);
+		}
 
 		if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
 			// @todo move this logic to MessageCache
@@ -1147,6 +1171,18 @@ class WikiPage implements Page, IDBAccessObject {
 		return true;
 	}
 
+	/**
+	 * Get the last time a user explicitly purged the page via action=purge
+	 *
+	 * @return string|bool TS_MW timestamp or false
+	 * @since 1.28
+	 */
+	public function getLastPurgeTimestamp() {
+		$cache = ObjectCache::getLocalClusterInstance();
+
+		return $cache->get( $cache->makeKey( 'page', 'last-dc-purge', $this->getId() ) );
+	}
+
 	/**
 	 * Insert a new empty page record for this article.
 	 * This *must* be followed up by creating a revision
@@ -1596,10 +1632,15 @@ class WikiPage implements Page, IDBAccessObject {
 	 */
 	public function doEditContent(
 		Content $content, $summary, $flags = 0, $baseRevId = false,
-		User $user = null, $serialFormat = null, $tags = null
+		User $user = null, $serialFormat = null, $tags = []
 	) {
 		global $wgUser, $wgUseAutomaticEditSummaries;
 
+		// Old default parameter for $tags was null
+		if ( $tags === null ) {
+			$tags = [];
+		}
+
 		// Low-level sanity check
 		if ( $this->mTitle->getText() === '' ) {
 			throw new MWException( 'Something is trying to edit an article with an empty title' );
@@ -1639,6 +1680,10 @@ class WikiPage implements Page, IDBAccessObject {
 		$old_revision = $this->getRevision(); // current revision
 		$old_content = $this->getContent( Revision::RAW ); // current revision's content
 
+		if ( $old_content && $old_content->getModel() !== $content->getModel() ) {
+			$tags[] = 'mw-contentmodelchange';
+		}
+
 		// Provide autosummaries if one is not provided and autosummaries are enabled
 		if ( $wgUseAutomaticEditSummaries && ( $flags & EDIT_AUTOSUMMARY ) && $summary == '' ) {
 			$handler = $content->getContentHandler();
@@ -3703,4 +3748,15 @@ class WikiPage implements Page, IDBAccessObject {
 		Hooks::run( 'WikiPageDeletionUpdates', [ $this, $content, &$updates ] );
 		return $updates;
 	}
+
+	/**
+	 * Whether this content displayed on this page
+	 * comes from the local database
+	 *
+	 * @since 1.28
+	 * @return bool
+	 */
+	public function isLocal() {
+		return true;
+	}
 }