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[mediawiki.git] / includes / rcfeed / RedisPubSubFeedEngine.php
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1 <?php
3 /**
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 * http://www.gnu.org/copyleft/gpl.html
19 * @file
22 /**
23 * Emit a recent change notification via Redis Pub/Sub
25 * If the feed URI contains a path component, it will be used to generate a
26 * channel name by stripping the leading slash and replacing any remaining
27 * slashes with '.'. If no path component is present, the channel is set to
28 * 'rc'. If the URI contains a query string, its parameters will be parsed
29 * as RedisConnectionPool options.
31 * @example
32 * $wgRCFeeds['redis'] = array(
33 * 'formatter' => 'JSONRCFeedFormatter',
34 * 'uri' => "redis://127.0.0.1:6379/rc.$wgDBname",
35 * );
37 * @since 1.22
39 class RedisPubSubFeedEngine implements RCFeedEngine {
41 /**
42 * @see RCFeedEngine::send
44 public function send( array $feed, $line ) {
45 $parsed = wfParseUrl( $feed['uri'] );
46 $server = $parsed['host'];
47 $options = array( 'serializer' => 'none' );
48 $channel = 'rc';
50 if ( isset( $parsed['port'] ) ) {
51 $server .= ":{$parsed['port']}";
53 if ( isset( $parsed['query'] ) ) {
54 parse_str( $parsed['query'], $options );
56 if ( isset( $parsed['pass'] ) ) {
57 $options['password'] = $parsed['pass'];
59 if ( isset( $parsed['path'] ) ) {
60 $channel = str_replace( '/', '.', ltrim( $parsed['path'], '/' ) );
62 $pool = RedisConnectionPool::singleton( $options );
63 $conn = $pool->getConnection( $server );
64 if ( $conn !== false ) {
65 $conn->publish( $channel, $line );
66 return true;
67 } else {
68 return false;