name : Enterprise_SnsServer.php <?php namespace W3TC; /** * Purge using AmazonSNS object */ class Enterprise_SnsServer extends Enterprise_SnsBase { /** * Processes message from SNS * * @throws Exception */ function process_message( $message ) { $this->_log( 'Received message' ); try { $message = new \Aws\Sns\Message( $message ); $validator = new \Aws\Sns\MessageValidator(); $error = ''; if ( $validator->isValid( $message ) ) { $topic_arn = $this->_config->get_string( 'cluster.messagebus.sns.topic_arn' ); if ( empty( $topic_arn ) || $topic_arn != $message['TopicArn'] ) throw new \Exception( 'Not my Topic. Request came from ' . $message['TopicArn'] ); if ( $message['Type'] == 'SubscriptionConfirmation' ) $this->_subscription_confirmation( $message ); elseif ( $message['Type'] == 'Notification' ) $this->_notification( $message['Message'] ); } else { $this->_log( 'Error processing message it was not valid.' ); } } catch ( \Exception $e ) { $this->_log( 'Error processing message: ' . $e->getMessage() ); } $this->_log( 'Message processed' ); } /** * Confirms subscription * * @param Message $message * @throws Exception */ private function _subscription_confirmation( $message ) { $this->_log( 'Issuing confirm_subscription' ); $topic_arn = $this->_config->get_string( 'cluster.messagebus.sns.topic_arn' ); $response = $this->_get_api()->confirmSubscription( array( 'Token' => $message['Token'], 'TopicArn' => $topic_arn ) ); $this->_log( 'Subscription confirmed: ' . ( $response['@metadata']['statusCode'] == 200 ? 'OK' : 'Error' ) ); } /** * Processes notification * * @param array $v */ private function _notification( $v ) { $m = json_decode( $v, true ); if ( isset( $m['hostname'] ) ) $this->_log( 'Message originated from hostname: ' . $m['hostname'] ); define( 'DOING_SNS', true ); $this->_log( 'Actions executing' ); do_action( 'w3tc_messagebus_message_received' ); if ( isset( $m['actions'] ) ) { $actions = $m['actions']; foreach ( $actions as $action ) $this->_execute( $action ); } else { $this->_execute( $m['action'] ); } do_action( 'w3tc_messagebus_message_processed' ); $this->_log( 'Actions executed' ); } /** * Execute action * * @param unknown $m * @throws Exception */ private function _execute( $m ) { $action = $m['action']; $this->_log( 'Executing action ' . $action ); //Needed for cache flushing $executor = new CacheFlush_Locally(); //Needed for cache cleanup $pgcache_admin = Dispatcher::component( 'PgCache_Plugin_Admin' ); //See which message we got if ( $action == 'dbcache_flush' ) $executor->dbcache_flush(); elseif ( $action == 'objectcache_flush' ) $executor->objectcache_flush(); elseif ( $action == 'fragmentcache_flush' ) $executor->fragmentcache_flush(); elseif ( $action == 'fragmentcache_flush_group' ) $executor->fragmentcache_flush_group( $m['group'] ); elseif ( $action == 'minifycache_flush' ) $executor->minifycache_flush(); elseif ( $action == 'browsercache_flush' ) $executor->browsercache_flush(); elseif ( $action == 'cdn_purge_all' ) $executor->cdn_purge_all( isset( $m['extras'] ) ? $m['extras'] : null ); elseif ( $action == 'cdn_purge_files' ) $executor->cdn_purge_files( $m['purgefiles'] ); elseif ( $action == 'pgcache_cleanup' ) $pgcache_admin->cleanup_local(); elseif ( $action == 'opcache_flush' ) $executor->opcache_flush(); elseif ( $action == 'flush_all' ) $executor->flush_all( isset( $m['extras'] ) ? $m['extras'] : null ); elseif ( $action == 'flush_group' ) $executor->flush_group( isset( $m['group'] ) ? $m['group'] : null, isset( $m['extras'] ) ? $m['extras'] : null ); elseif ( $action == 'flush_post' ) $executor->flush_post( $m['post_id'] ); elseif ( $action == 'flush_posts' ) $executor->flush_posts(); elseif ( $action == 'flush_url' ) $executor->flush_url( $m['url'] ); elseif ( $action == 'prime_post' ) $executor->prime_post( $m['post_id'] ); else throw new \Exception( 'Unknown action ' . $action ); $executor->execute_delayed_operations(); $this->_log( 'succeeded' ); } }