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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/>.
/**
* A script to embed vimeo videos via the site (so vimeo privacy restrictions by domain will work in the mobile app).
*
* The site is doing a double frame embedding:
* - First, the media player replaces the vimeo link with an iframe pointing to vimeo.
* - Second, the app replaces the previous iframe link with a link to this file that includes again the iframe to vimeo.
* Thanks to these changes, the video is embedded in a page in the site server so the privacy restrictions will work.
*
* Note 1: Vimeo privacy restrictions seems to be based on the Referer HTTP header.
* Note 2: This script works even if the plugin is disabled (some users could be using the vimeo embedding code).
*
* @package media_vimeo
* @copyright 2017 Juan Leyva
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('NO_MOODLE_COOKIES', true);
require_once(__DIR__ . '/../../../config.php');
require_once($CFG->dirroot . '/webservice/lib.php');
$token = required_param('token', PARAM_ALPHANUM);
$video = required_param('video', PARAM_ALPHANUM); // Video ids are numeric, but it's more solid to expect things like 00001.
$width = optional_param('width', 0, PARAM_INT);
$height = optional_param('height', 0, PARAM_INT);
// Authenticate the user.
$webservicelib = new webservice();
$webservicelib->authenticate_user($token);
if (empty($width) && empty($height)) {
// Use the full page. The video will keep the ratio.
$display = 'style="position:absolute; top:0; left:0; width:100%; height:100%;"';
} else {
$display = "width=\"$width\" height=\"$height\"";
}
$output = <<<OET
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body style="margin:0; padding:0">
<iframe src="https://player.vimeo.com/video/$video"
$display frameborder="0"
webkitallowfullscreen mozallowfullscreen allowfullscreen>
</iframe>
</body>
</html>
OET;
echo $output;