JSONRCFeedFormatter.php

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<?php

class JSONRCFeedFormatter implements RCFeedFormatter {
    public function getLine( array $feed, RecentChange $rc, $actionComment ) {
        global $wgCanonicalServer, $wgScriptPath, $wgDBname;
        $attrib = $rc->getAttributes();

        $packet = array(
            // Usually, RC ID is exposed only for patrolling purposes,
            // but there is no real reason not to expose it in other cases,
            // and I can see how this may be potentially useful for clients.
            'id' => $attrib['rc_id'],
            'type' => $attrib['rc_type'],
            'namespace' => $rc->getTitle()->getNamespace(),
            'title' => $rc->getTitle()->getPrefixedText(),
            'comment' => $attrib['rc_comment'],
            'timestamp' => (int)wfTimestamp( TS_UNIX, $attrib['rc_timestamp'] ),
            'user' => $attrib['rc_user_text'],
            'bot' => (bool)$attrib['rc_bot'],
        );

        if ( isset( $feed['channel'] ) ) {
            $packet['channel'] = $feed['channel'];
        }

        $type = $attrib['rc_type'];
        if ( $type == RC_EDIT || $type == RC_NEW ) {
            global $wgUseRCPatrol, $wgUseNPPatrol;

            $packet['minor'] = $attrib['rc_minor'];
            if ( $wgUseRCPatrol || ( $type == RC_NEW && $wgUseNPPatrol ) ) {
                $packet['patrolled'] = $attrib['rc_patrolled'];
            }
        }

        switch ( $type ) {
            case RC_EDIT:
                $packet['length'] = array( 'old' => $attrib['rc_old_len'], 'new' => $attrib['rc_new_len'] );
                $packet['revision'] = array( 'old' => $attrib['rc_last_oldid'], 'new' => $attrib['rc_this_oldid'] );
                break;

            case RC_NEW:
                $packet['length'] = array( 'old' => NULL, 'new' => $attrib['rc_new_len'] );
                $packet['revision'] = array( 'old' => NULL, 'new' => $attrib['rc_this_oldid'] );
                break;

            case RC_LOG:
                $packet['log_type'] = $attrib['rc_log_type'];
                $packet['log_action'] = $attrib['rc_log_action'];
                if ( $attrib['rc_params'] ) {
                    wfSuppressWarnings();
                    $params = unserialize( $attrib['rc_params'] );
                    wfRestoreWarnings();
                    if (
                        // If it's an actual serialised false...
                        $attrib['rc_params'] == serialize( false ) ||
                        // Or if we did not get false back when trying to unserialise
                        $params !== false
                    ) {
                        // From ApiQueryLogEvents::addLogParams
                        $logParams = array();
                        // Keys like "4::paramname" can't be used for output so we change them to "paramname"
                        foreach ( $params as $key => $value ) {
                            if ( strpos( $key, ':' ) === false ) {
                                $logParams[$key] = $value;
                                continue;
                            }
                            $logParam = explode( ':', $key, 3 );
                            $logParams[$logParam[2]] = $value;
                        }
                        $packet['log_params'] = $logParams;
                    } else {
                        $packet['log_params'] = explode( "\n", $attrib['rc_params'] );
                    }
                }
                $packet['log_action_comment'] = $actionComment;
                break;
        }

        $packet['server_url'] = $wgCanonicalServer;
        $packet['server_script_path'] = $wgScriptPath ?: '/';
        $packet['wiki'] = $wgDBname;

        return FormatJson::encode( $packet );
    }
}