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Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 and 403] [Versions 402 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  
  18  /**
  19   * A script to embed vimeo videos via the site (so vimeo privacy restrictions by domain will work in the mobile app).
  20   *
  21   * The site is doing a double frame embedding:
  22   *  - First, the media player replaces the vimeo link with an iframe pointing to vimeo.
  23   *  - Second, the app replaces the previous iframe link with a link to this file that includes again the iframe to vimeo.
  24   *  Thanks to these changes, the video is embedded in a page in the site server so the privacy restrictions will work.
  25   *
  26   *  Note 1: Vimeo privacy restrictions seems to be based on the Referer HTTP header.
  27   *  Note 2: This script works even if the plugin is disabled (some users could be using the vimeo embedding code).
  28   *
  29   * @package    media_vimeo
  30   * @copyright  2017 Juan Leyva
  31   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32   */
  33  
  34  define('NO_MOODLE_COOKIES', true);
  35  
  36  require_once(__DIR__ . '/../../../config.php');
  37  require_once($CFG->dirroot . '/webservice/lib.php');
  38  
  39  global $OUTPUT;
  40  
  41  $token = required_param('token', PARAM_ALPHANUM);
  42  $video = required_param('video', PARAM_ALPHANUM);   // Video ids are numeric, but it's more solid to expect things like 00001.
  43  $width = optional_param('width', 0, PARAM_INT);
  44  $height = optional_param('height', 0, PARAM_INT);
  45  $h = optional_param('h', '', PARAM_ALPHANUM); // Security hash for restricted videos.
  46  
  47  // Authenticate the user.
  48  $webservicelib = new webservice();
  49  $webservicelib->authenticate_user($token);
  50  
  51  $params = ['lang' => current_language()];
  52  if (!empty($h)) {
  53      $params['h'] = $h;
  54  }
  55  
  56  // Add do not track parameter.
  57  if (get_config('media_vimeo', 'donottrack')) {
  58      $params['dnt'] = 1;
  59  }
  60  
  61  $embedurl = new moodle_url("https://player.vimeo.com/video/$video", $params);
  62  $context = ['embedurl' => $embedurl->out(false)]; // Template context.
  63  
  64  if (empty($width) && empty($height)) {
  65      // Use the full page. The video will keep the ratio.
  66      $context['display'] = "position:absolute; top:0; left:0; width:100%; height:100%;";
  67  } else {
  68      $context['width'] = $width;
  69      $context['height'] = $height;
  70  }
  71  
  72  // Output the rendered template.
  73  echo $OUTPUT->render_from_template('media_vimeo/appembed', $context);