mod/lesson/mediafile.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This file plays the mediafile set in lesson settings.
  20  *
  21  *  If there is a way to use the resource class instead of this code, please change to do so
  22  *
  23  *
  24  * @package mod_lesson
  25  * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
  26  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27  **/
  28
  29 require_once('../../config.php');
  30 require_once($CFG->dirroot.'/mod/lesson/locallib.php');
  31
  32 $id = required_param('id', PARAM_INT);    // Course Module ID
  33 $printclose = optional_param('printclose', 0, PARAM_INT);
  34
  35 $cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
  36 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  37 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
  38
  39 require_login($course, false, $cm);
  40
  41
  42 // Apply overrides.
  43 $lesson->update_effective_access($USER->id);
  44
  45 $context = context_module::instance($cm->id);
  46 $canmanage = has_capability('mod/lesson:manage', $context);
  47
  48 $url = new moodle_url('/mod/lesson/mediafile.php', array('id'=>$id));
  49 if ($printclose !== '') {
  50     $url->param('printclose', $printclose);
  51 }
  52 $PAGE->set_url($url);
  53 $PAGE->set_pagelayout('popup');
  54 $PAGE->set_title($course->shortname);
  55
  56 $lessonoutput = $PAGE->get_renderer('mod_lesson');
  57
  58 // Get the mimetype
  59 $mimetype = mimeinfo("type", $lesson->mediafile);
  60
  61 if ($printclose) {  // this is for framesets
  62     if ($lesson->mediaclose) {
  63         echo $lessonoutput->header($lesson, $cm);
  64         echo $OUTPUT->box('<form><div><input type="button" onclick="top.close();" value="'.get_string("closewindow").'" /></div></form>', 'lessonmediafilecontrol');
  65         echo $lessonoutput->footer();
  66     }
  67     exit();
  68 }
  69
  70 echo $lessonoutput->header($lesson, $cm);
  71
  72 //TODO: this is copied from view.php - the access should be the same!
  73 /// Check these for students only TODO: Find a better method for doing this!
  74 ///     Check lesson availability
  75 ///     Check for password
  76 ///     Check dependencies
  77 if (!$canmanage) {
  78     if (!$lesson->is_accessible()) {  // Deadline restrictions
  79         echo $lessonoutput->header($lesson, $cm);
  80         if ($lesson->deadline != 0 && time() > $lesson->deadline) {
  81             echo $lessonoutput->lesson_inaccessible(get_string('lessonclosed', 'lesson', userdate($lesson->deadline)));
  82         } else {
  83             echo $lessonoutput->lesson_inaccessible(get_string('lessonopen', 'lesson', userdate($lesson->available)));
  84         }
  85         echo $lessonoutput->footer();
  86         exit();
  87     } else if ($lesson->usepassword && empty($USER->lessonloggedin[$lesson->id])) { // Password protected lesson code
  88         $correctpass = false;
  89         if (!empty($userpassword) && (($lesson->password == md5(trim($userpassword))) || ($lesson->password == trim($userpassword)))) {
  90             require_sesskey();
  91             // with or without md5 for backward compatibility (MDL-11090)
  92             $USER->lessonloggedin[$lesson->id] = true;
  93             $correctpass = true;
  94         } else if (isset($lesson->extrapasswords)) {
  95             // Group overrides may have additional passwords.
  96             foreach ($lesson->extrapasswords as $password) {
  97                 if (strcmp($password, md5(trim($userpassword))) === 0 || strcmp($password, trim($userpassword)) === 0) {
  98                     require_sesskey();
  99                     $correctpass = true;
 100                     $USER->lessonloggedin[$lesson->id] = true;
 101                 }
 102             }
 103         }
 104         if (!$correctpass) {
 105             echo $lessonoutput->header($lesson, $cm);
 106             echo $lessonoutput->login_prompt($lesson, $userpassword !== '');
 107             echo $lessonoutput->footer();
 108             exit();
 109         }
 110     }
 111 }
 112
 113 // print the embedded media html code
 114 echo $OUTPUT->box(lesson_get_media_html($lesson, $context));
 115
 116 if ($lesson->mediaclose) {
 117    echo '<div class="lessonmediafilecontrol">';
 118    echo $OUTPUT->close_window_button();
 119    echo '</div>';
 120 }
 121
 122 echo $lessonoutput->footer();