mod/scorm/api.php

   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 require_once("../../config.php");
  18 require_once('locallib.php');
  19
  20 $id = optional_param('id', '', PARAM_INT);       // Course Module ID, or
  21 $a = optional_param('a', '', PARAM_INT);         // scorm ID
  22 $scoid = required_param('scoid', PARAM_INT);     // sco ID
  23 $mode = optional_param('mode', '', PARAM_ALPHA); // navigation mode
  24 $attempt = required_param('attempt', PARAM_INT); // new attempt
  25
  26 //IE 6 Bug workaround
  27 if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 6') !== false) {
  28     @ini_set('zlib.output_compression', 'Off');
  29     @apache_setenv('no-gzip', 1);
  30     header( 'Content-Type: application/javascript' );
  31 }
  32
  33 if (!empty($id)) {
  34     if (! $cm = get_coursemodule_from_id('scorm', $id)) {
  35         print_error('invalidcoursemodule');
  36     }
  37     if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
  38         print_error('coursemisconf');
  39     }
  40     if (! $scorm = $DB->get_record('scorm', array('id'=>$cm->instance))) {
  41         print_error('invalidcoursemodule');
  42     }
  43 } else if (!empty($a)) {
  44     if (! $scorm = $DB->get_record('scorm', array('id'=>$a))) {
  45         print_error('coursemisconf');
  46     }
  47     if (! $course = $DB->get_record('course', array('id'=>$scorm->course))) {
  48         print_error('coursemisconf');
  49     }
  50     if (! $cm = get_coursemodule_from_instance('scorm', $scorm->id, $course->id)) {
  51         print_error('invalidcoursemodule');
  52     }
  53 } else {
  54     print_error('missingparameter');
  55 }
  56
  57 $PAGE->set_url('/mod/scorm/api.php', array('scoid'=>$scoid, 'id'=>$cm->id));
  58
  59 require_login($course->id, false, $cm);
  60
  61 if ($usertrack = scorm_get_tracks($scoid, $USER->id, $attempt)) {
  62     //according to SCORM 2004 spec(RTE V1, 4.2.8), only cmi.exit==suspend should allow previous datamodel elements on re-launch
  63     if (!scorm_version_check($scorm->version, SCORM_13) || (isset($usertrack->{'cmi.exit'}) && ($usertrack->{'cmi.exit'} == 'suspend'))) {
  64         foreach ($usertrack as $key => $value) {
  65             $userdata->$key = addslashes_js($value);
  66         }
  67     } else {
  68         $userdata->status = '';
  69         $userdata->score_raw = '';
  70     }
  71 } else {
  72     $userdata->status = '';
  73     $userdata->score_raw = '';
  74 }
  75 $userdata->student_id = addslashes_js($USER->username);
  76 $userdata->student_name = addslashes_js($USER->lastname .', '. $USER->firstname);
  77 $userdata->mode = 'normal';
  78 if (isset($mode)) {
  79     $userdata->mode = $mode;
  80 }
  81 if ($userdata->mode == 'normal') {
  82     $userdata->credit = 'credit';
  83 } else {
  84     $userdata->credit = 'no-credit';
  85 }
  86 if ($scodatas = scorm_get_sco($scoid, SCO_DATA)) {
  87     foreach ($scodatas as $key => $value) {
  88         $userdata->$key = addslashes_js($value);
  89     }
  90 } else {
  91     print_error('cannotfindsco', 'scorm');
  92 }
  93 if (!$sco = scorm_get_sco($scoid)) {
  94     print_error('cannotfindsco', 'scorm');
  95 }
  96 if (scorm_version_check($scorm->version, SCORM_13)) {
  97     $userdata->{'cmi.scaled_passing_score'} = $DB->get_field('scorm_seq_objective', 'minnormalizedmeasure', array('scoid'=>$scoid));
  98 }
  99 $scorm->version = strtolower(clean_param($scorm->version, PARAM_SAFEDIR));   // Just to be safe
 100 if (file_exists($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'.js.php')) {
 101     include_once($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'.js.php');
 102 } else {
 103     include_once($CFG->dirroot.'/mod/scorm/datamodels/scorm_12.js.php');
 104 }
 105 // set the start time of this SCO
 106 scorm_insert_track($USER->id, $scorm->id, $scoid, $attempt, 'x.start.time', time());
 107 ?>
 108
 109
 110 var errorCode = "0";
 111 function underscore(str) {
 112     str = String(str).replace(/.N/g,".");
 113     return str.replace(/\./g,"__");
 114 }