mod_bigbluebuttonbn\locallib\bigbluebutton

Complexity

Total Complexity

9

Size/Duplication

Total Lines	61
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	action_url()	0	11	3
A	sanitized_url()	0	10	3
A	sanitized_secret()	0	3	1
A	root()	0	8	2

<?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 mod_bigbluebuttonbn locallib/bigbluebutton.
 *
 * @package   mod_bigbluebuttonbn
 * @copyright 2010-2017 Blindside Networks Inc
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v2 or later
 * @author    Jesus Federico  (jesus [at] blindsidenetworks [dt] com)
 */

namespace mod_bigbluebuttonbn\locallib;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot . '/mod/bigbluebuttonbn/locallib.php');

/**
 * Wrapper for executing http requests on a BigBlueButton server.
 *
 * @copyright 2010-2017 Blindside Networks Inc
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v2 or later
 */
class bigbluebutton {

    /**
     * Returns the right URL for the action specified.
     *
     * @param string $action
     * @param array  $data
     * @param array  $metadata
     * @return string
     */
    public static function action_url($action = '', $data = array(), $metadata = array()) {
        $baseurl = self::sanitized_url() . $action . '?';
        $params = '';
        foreach ($data as $key => $value) {
            $params .= '&' . $key . '=' . urlencode($value);
        }
        foreach ($metadata as $key => $value) {
            $params .= '&' . 'meta_' . $key.'=' . urlencode($value);
        }
        return $baseurl . $params . '&checksum=' . sha1($action . $params . self::sanitized_secret());
    }

    /**
     * Makes sure the url used doesn't is in the format required.
     *
     * @return string
     */
    public static function sanitized_url() {
        $serverurl = trim(\mod_bigbluebuttonbn\locallib\config::get('server_url'));
        if (substr($serverurl, -1) == '/') {
            $serverurl = rtrim($serverurl, '/');
        }
        if (substr($serverurl, -4) == '/api') {
            $serverurl = rtrim($serverurl, '/api');
        }
        return $serverurl . '/api/';
    }

    /**
     * Makes sure the shared_secret used doesn't have trailing white characters.
     *
     * @return string
     */
    public static function sanitized_secret() {
        return trim(\mod_bigbluebuttonbn\locallib\config::get('shared_secret'));
    }

    /**
     * Returns the BigBlueButton server root URL.
     *
     * @return string
     */
    public static function root() {
        $pserverurl = parse_url(trim(\mod_bigbluebuttonbn\locallib\config::get('server_url')));
        $pserverurlport = "";
        if (isset($pserverurl['port'])) {
            $pserverurlport = ":" . $pserverurl['port'];
        }
        return $pserverurl['scheme'] . "://" . $pserverurl['host'] . $pserverurlport . "/";
    }
}