gnu-social/lib/queue/pluginqueuehandler.php

<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.

defined('GNUSOCIAL') || die();

/**
 * Queue handler for letting plugins handle stuff.
 *
 * The module queue handler accepts notices over the "plugin" queue
 * and simply passes them through the "HandleQueuedNotice" event.
 *
 * This gives plugins a chance to do background processing without
 * actually registering their own queue and ensuring that things
 * are queued into it.
 *
 * Fancier plugins may wish to instead hook the 'GetQueueHandlerClass'
 * event with their own class, in which case they must ensure that
 * their notices get enqueued when they need them.
 */
class PluginQueueHandler extends QueueHandler
{
    function transport()
    {
        return 'plugin';
    }

    function handle($notice): bool
    {
        if (!($notice instanceof Notice)) {
            common_log(LOG_ERR, "Got a bogus notice, not broadcasting");
            return true;
        }

        try {
            Event::handle('HandleQueuedNotice', array(&$notice));
        } catch (NoProfileException $unp) {
            // We can't do anything about this, so just skip
            return true;
        }
        return true;
    }
}