1 files changed, 41 insertions, 0 deletions
diff --git a/includes/rcfeed/RedisPubSubFeedEngine.php b/includes/rcfeed/RedisPubSubFeedEngine.php
new file mode 100644
index 00000000..4bcc1337
--- /dev/null
+++ b/includes/rcfeed/RedisPubSubFeedEngine.php
@@ -0,0 +1,41 @@
+<?php
+class RedisPubSubFeedEngine implements RCFeedEngine {
+	/**
+	 * Emit a recent change notification via Redis Pub/Sub
+	 *
+	 * If the feed URI contains a path component, it will be used to generate a
+	 * channel name by stripping the leading slash and replacing any remaining
+	 * slashes with '.'. If no path component is present, the channel is set to
+	 * 'rc'. If the URI contains a query string, its parameters will be parsed
+	 * as RedisConnectionPool options.
+	 *
+	 * @example $wgRCFeeds['redis'] = array(
+	 *      'formatter' => 'JSONRCFeedFormatter',
+	 *      'uri'       => "redis://127.0.0.1:6379/rc.$wgDBname",
+	 * );
+	 *
+	 * @since 1.22
+	 */
+	public function send( array $feed, $line ) {
+		$parsed = parse_url( $feed['uri'] );
+		$server = $parsed['host'];
+		$options = array( 'serializer' => 'none' );
+		$channel = 'rc';
+
+		if ( isset( $parsed['port'] ) ) {
+			$server .= ":{$parsed['port']}";
+		}
+		if ( isset( $parsed['query'] ) ) {
+			parse_str( $parsed['query'], $options );
+		}
+		if ( isset( $parsed['pass'] ) ) {
+			$options['password'] = $parsed['pass'];
+		}
+		if ( isset( $parsed['path'] ) ) {
+			$channel = str_replace( '/', '.', ltrim( $parsed['path'], '/' ) );
+		}
+		$pool = RedisConnectionPool::singleton( $options );
+		$conn = $pool->getConnection( $server );
+		$conn->publish( $channel, $line );
+	}
+}