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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* The event handler.
*
* @package local_webhooks
* @copyright 2017 "Valentin Popov" <info@valentineus.link>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace local_webhooks;
defined("MOODLE_INTERNAL") || die();
require_once($CFG->libdir . "/filelib.php");
use curl;
/**
* Defines how to work with events.
*
* @copyright 2017 "Valentin Popov" <info@valentineus.link>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class events {
/**
* External handler.
*
* @param object $event
*/
public static function handler($event) {
$enable = get_config("local_webhooks", "enable");
if (boolval($enable)) {
$data = $event->get_data();
self::transmitter($data);
}
}
/**
* Transmitter, processing event and services.
*
* @param array $data
*/
private static function transmitter($data) {
global $DB;
$callbacks = $DB->get_recordset("local_webhooks_service");
if ($callbacks->valid()) {
foreach ($callbacks as $callback) {
self::handler_callback($data, $callback);
}
}
$callbacks->close();
}
/**
* Processes each callback.
*
* @param array $data
* @param object $callback
*/
private static function handler_callback($data, $callback) {
if ($callback->enable) {
if (!empty($callback->events)) {
$events = unserialize(gzuncompress(base64_decode($callback->events)));
}
if (boolval($events[$data["eventname"]])) {
/* Adding to the data token */
if (boolval($callback->token)) {
$data["token"] = $callback->token;
}
self::send($data, $callback);
}
}
}
/**
* Sending data to the node.
*
* @param array $data
* @param object $callback
*/
private static function send($data, $callback) {
$package = json_encode($data);
$curl = new curl();
$curl->setHeader(array("Content-Type: application/$callback->type"));
$curl->post($callback->url, $package);
return $curl->getResponse();
}
}
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