includes/rcfeed/RedisPubSubFeedEngine.php

   1 <?php
   2 class RedisPubSubFeedEngine implements RCFeedEngine {
   3         /**
   4          * Emit a recent change notification via Redis Pub/Sub
   5          *
   6          * If the feed URI contains a path component, it will be used to generate a
   7          * channel name by stripping the leading slash and replacing any remaining
   8          * slashes with '.'. If no path component is present, the channel is set to
   9          * 'rc'. If the URI contains a query string, its parameters will be parsed
  10          * as RedisConnectionPool options.
  11          *
  12          * @example $wgRCFeeds['redis'] = array(
  13          *      'formatter' => 'JSONRCFeedFormatter',
  14          *      'uri'       => "redis://127.0.0.1:6379/rc.$wgDBname",
  15          * );
  16          *
  17          * @since 1.22
  18          */
  19         public function send( array $feed, $line ) {
  20                 $parsed = parse_url( $feed['uri'] );
  21                 $server = $parsed['host'];
  22                 $options = array( 'serializer' => 'none' );
  23                 $channel = 'rc';
  24
  25                 if ( isset( $parsed['port'] ) ) {
  26                         $server .= ":{$parsed['port']}";
  27                 }
  28                 if ( isset( $parsed['query'] ) ) {
  29                         parse_str( $parsed['query'], $options );
  30                 }
  31                 if ( isset( $parsed['pass'] ) ) {
  32                         $options['password'] = $parsed['pass'];
  33                 }
  34                 if ( isset( $parsed['path'] ) ) {
  35                         $channel = str_replace( '/', '.', ltrim( $parsed['path'], '/' ) );
  36                 }
  37                 $pool = RedisConnectionPool::singleton( $options );
  38                 $conn = $pool->getConnection( $server );
  39                 $conn->publish( $channel, $line );
  40         }
  41 }