mod/scorm/aicc.php

   1 <?php
   2     require_once('../../config.php');
   3     require_once('locallib.php');
   4
   5     $command = required_param('command', '', PARAM_ALPHA);
   6     $sessionid = required_param('session_id', '', PARAM_ALPHANUM);
   7     $aiccdata = optional_param('aicc_data', '', PARAM_RAW);
   8
   9     require_login();
  10
  11     if (!empty($command) && confirm_sesskey($sessionid)) {
  12         $command = strtolower($command);
  13
  14         if (isset($SESSION->scorm_scoid)) {
  15             $scoid = $SESSION->scorm_scoid;
  16         } else {
  17             error('Invalid script call');
  18         }
  19         $mode = 'normal';
  20         if (isset($SESSION->scorm_mode)) {
  21             $mode = $SESSION->scorm_mode;
  22         }
  23         $status = 'Not Initialized';
  24         if (isset($SESSION->scorm_status)) {
  25             $status = $SESSION->scorm_status;
  26         }
  27         if (isset($SESSION->attempt)) {
  28             $attempt = $SESSION->attempt;
  29         } else {
  30             $attempt = 1;
  31         }
  32
  33         if ($sco = get_record('scorm_scoes','id',$scoid)) {
  34             if (!$scorm = get_record('scorm','id',$sco->scorm)) {
  35                 error('Invalid script call');
  36             }
  37         } else {
  38             error('Invalid script call');
  39         }
  40
  41         if ($scorm = get_record('scorm','id',$sco->scorm)) {
  42             switch ($command) {
  43                 case 'getparam':
  44                     if ($status == 'Not Initialized') {
  45                         $SESSION->scorm_status = 'Running';
  46                         $status = 'Running';
  47                     }
  48                     if ($status != 'Running') {
  49                         echo "error = 101\nerror_text = Terminated\n";
  50                     } else {
  51                         if ($usertrack=scorm_get_tracks($scoid,$USER->id,$attempt)) {
  52                             $userdata = $usertrack;
  53                         } else {
  54                             $userdata->status = '';
  55                             $userdata->score_raw = '';
  56                         }
  57                         $userdata->student_id = $USER->username;
  58                         $userdata->student_name = $USER->lastname .', '. $USER->firstname;
  59                         $userdata->mode = $mode;
  60                         if ($userdata->mode == 'normal') {
  61                             $userdata->credit = 'credit';
  62                         } else {
  63                             $userdata->credit = 'no-credit';
  64                         }
  65
  66                         if ($sco = get_record('scorm_scoes','id',$scoid)) {
  67                             $userdata->course_id = $sco->identifier;
  68                             $userdata->datafromlms = $sco->datafromlms;
  69                             $userdata->masteryscore = $sco->masteryscore;
  70                             $userdata->maxtimeallowed = $sco->maxtimeallowed;
  71                             $userdata->timelimitaction = $sco->timelimitaction;
  72
  73                             echo "error = 0\nerror_text = Successful\naicc_data=\n";
  74                             echo "[Core]\n";
  75                             echo 'Student_ID = '.$userdata->student_id."\n";
  76                             echo 'Student_Name = '.$userdata->student_name."\n";
  77                             if (isset($userdata->{'cmi.core.lesson_location'})) {
  78                                 echo 'Lesson_Location = '.$userdata->{'cmi.core.lesson_location'}."\n";
  79                             } else {
  80                                 echo 'Lesson_Location = '."\n";
  81                             }
  82                             echo 'Credit = '.$userdata->credit."\n";
  83                             if (isset($userdata->status)) {
  84                                 if ($userdata->status == '') {
  85                                     $userdata->entry = ', ab-initio';
  86                                 } else {
  87                                     if (isset($userdata->{'cmi.core.exit'}) && ($userdata->{'cmi.core.exit'} == 'suspend')) {
  88                                         $userdata->entry = ', resume';
  89                                     } else {
  90                                         $userdata->entry = '';
  91                                     }
  92                                 }
  93                             }
  94                             if (isset($userdata->{'cmi.core.lesson_status'})) {
  95                                 echo 'Lesson_Status = '.$userdata->{'cmi.core.lesson_status'}.$userdata->entry."\n";
  96                                 $SESSION->scorm_lessonstatus = $userdata->{'cmi.core.lesson_status'};
  97                             } else {
  98                                 echo 'Lesson_Status = not attempted'.$userdata->entry."\n";
  99                                 $SESSION->scorm_lessonstatus = 'not attempted';
 100                             }
 101                             if (isset($userdata->{'cmi.core.score.raw'})) {
 102                                 $max = '';
 103                                 $min = '';
 104                                 if (isset($userdata->{'cmi.core.score.max'}) && !empty($userdata->{'cmi.core.score.max'})) {
 105                                     $max = ', '.$userdata->{'cmi.core.score.max'};
 106                                     if (isset($userdata->{'cmi.core.score.min'}) && !empty($userdata->{'cmi.core.score.min'})) {
 107                                         $min = ', '.$userdata->{'cmi.core.score.min'};
 108                                     }
 109                                 }
 110                                 echo 'Score = '.$userdata->{'cmi.core.score.raw'}.$max.$min."\n";
 111                             } else {
 112                                 echo 'Score = '."\n";
 113                             }
 114                             if (isset($userdata->{'cmi.core.total_time'})) {
 115                                 echo 'Time = '.$userdata->{'cmi.core.total_time'}."\n";
 116                             } else {
 117                                 echo 'Time = '.'00:00:00'."\n";
 118                             }
 119                             echo 'Lesson_Mode = '.$userdata->mode."\n";
 120                             if (isset($userdata->{'cmi.suspend_data'})) {
 121                                 echo "[Core_Lesson]\n".$userdata->{'cmi.suspend_data'}."\n";
 122                             } else {
 123                                 echo "[Core_Lesson]\n"."\n";
 124                             }
 125                             echo "[Core_Vendor]\n".$userdata->datafromlms."\n";
 126                             echo "[Evaluation]\nCourse_ID = {".$userdata->course_id."}\n";
 127                             echo "[Student_Data]\n";
 128                             echo 'Mastery_Score = '.$userdata->masteryscore."\n";
 129                             echo 'Max_Time_Allowed = '.$userdata->maxtimeallowed."\n";
 130                             echo 'Time_Limit_Action = '.$userdata->timelimitaction."\n";
 131                         } else {
 132                             error('Sco not found');
 133                         }
 134                     }
 135                 break;
 136                 case 'putparam':
 137                     if ($status == 'Running') {
 138                         if (!empty($aiccdata) && isstudent($scorm->course)) {
 139                             $initlessonstatus = 'not attempted';
 140                             $lessonstatus = 'not attempted';
 141                             if (isset($SESSION->scorm_lessonstatus)) {
 142                                 $initlessonstatus = $SESSION->scorm_lessonstatus;
 143                             }
 144                             $score = '';
 145                             $datamodel['lesson_location'] = 'cmi.core.lesson_location';
 146                             $datamodel['lesson_status'] = 'cmi.core.lesson_status';
 147                             $datamodel['score'] = 'cmi.core.score.raw';
 148                             $datamodel['time'] = 'cmi.core.session_time';
 149                             $datamodel['[core_lesson]'] = 'cmi.suspend_data';
 150                             $datamodel['[comments]'] = 'cmi.comments';
 151                             $datarows = explode("\n",$aiccdata);
 152                             reset($datarows);
 153                             while ((list(,$datarow) = each($datarows)) !== false) {
 154                                 if (($equal = strpos($datarow, '=')) !== false) {
 155                                     $element = strtolower(trim(substr($datarow,0,$equal)));
 156                                     $value = trim(substr($datarow,$equal+1));
 157                                     if (isset($datamodel[$element])) {
 158                                         $element = $datamodel[$element];
 159                                         switch ($element) {
 160                                             case 'cmi.core.lesson_location':
 161                                                 $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
 162                                             break;
 163                                             case 'cmi.core.lesson_status':
 164                                                 $statuses = array(
 165                                                            'passed' => 'passed',
 166                                                            'completed' => 'completed',
 167                                                            'failed' => 'failed',
 168                                                            'incomplete' => 'incomplete',
 169                                                            'browsed' => 'browsed',
 170                                                            'not attempted' => 'not attempted',
 171                                                            'p' => 'passed',
 172                                                            'c' => 'completed',
 173                                                            'f' => 'failed',
 174                                                            'i' => 'incomplete',
 175                                                            'b' => 'browsed',
 176                                                            'n' => 'not attempted'
 177                                                            );
 178                                                 $exites = array(
 179                                                            'logout' => 'logout',
 180                                                            'time-out' => 'time-out',
 181                                                            'suspend' => 'suspend',
 182                                                            'l' => 'logout',
 183                                                            't' => 'time-out',
 184                                                            's' => 'suspend',
 185                                                            );
 186                                                 $values = explode(',',$value);
 187                                                 $value = '';
 188                                                 if (count($values) > 1) {
 189                                                     $value = trim(strtolower($values[1]));
 190                                                     if (isset($exites[$value])) {
 191                                                         $value = $exites[$value];
 192                                                     }
 193                                                 }
 194                                                 if (empty($value) || isset($exites[$value])) {
 195                                                     $subelement = 'cmi.core.exit';
 196                                                     $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $subelement, $value);
 197                                                 }
 198                                                 $value = trim(strtolower($values[0]));
 199                                                 if (isset($statuses[$value]) && ($mode == 'normal')) {
 200                                                     $value = $statuses[$value];
 201                                                     $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
 202                                                 }
 203                                                 $lessonstatus = $value;
 204                                             break;
 205                                             case 'cmi.core.score.raw':
 206                                                  $values = explode(',',$value);
 207                                                  if ((count($values) > 1) && ($values[1] >= $values[0]) && is_numeric($values[1])) {
 208                                                      $subelement = 'cmi.core.score.max';
 209                                                      $value = trim($values[1]);
 210                                                      $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $subelement, $value);
 211                                                      if ((count($values) == 3) && ($values[2] <= $values[0]) && is_numeric($values[2])) {
 212                                                          $subelement = 'cmi.core.score.min';
 213                                                          $value = trim($values[2]);
 214                                                          $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $subelement, $value);
 215                                                      }
 216                                                  }
 217
 218                                                  $value = '';
 219                                                  if (is_numeric($values[0])) {
 220                                                      $value = trim($values[0]);
 221                                                      $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
 222                                                  }
 223                                                  $score = $value;
 224                                             break;
 225                                             case 'cmi.core.session_time':
 226                                                  $SESSION->scorm_session_time = $value;
 227                                             break;
 228                                         }
 229                                     }
 230                                 } else {
 231                                     if (isset($datamodel[strtolower(trim($datarow))])) {
 232                                         $element = $datamodel[strtolower(trim($datarow))];
 233                                         $value = '';
 234                                         while ((($datarow = current($datarows)) !== false) && (substr($datarow,0,1) != '[')) {
 235                                             $value .= $datarow;
 236                                             next($datarows);
 237                                         }
 238                                         $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
 239                                     }
 240                                 }
 241                             }
 242                             if (($mode == 'browse') && ($initlessonstatus == 'not attempted')){
 243                                 $lessonstatus = 'browsed';
 244                                 $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, 'cmi.core.lesson_status', 'browsed');
 245                             }
 246                             if ($mode == 'normal') {
 247                                 if ($lessonstatus == 'completed') {
 248                                     if (!empty($sco->masteryscore) && !empty($score) && ($score >= $sco->masteryscore)) {
 249                                         $lessonstatus = 'passed';
 250                                     } else {
 251                                         $lessonstatus = 'failed';
 252                                     }
 253                                     $id = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, 'cmi.core.lesson_status', $lessonstatus);
 254                                 }
 255                             }
 256                         }
 257                         echo "error = 0\nerror_text = Successful\n";
 258                     } else if ($status == 'Terminated') {
 259                         echo "error = 1\nerror_text = Terminated\n";
 260                     } else {
 261                         echo "error = 1\nerror_text = Not Initialized\n";
 262                     }
 263                 break;
 264                 case 'putcomments':
 265                     if ($status == 'Running') {
 266                         echo "error = 0\nerror_text = Successful\n";
 267                     } else if ($status == 'Terminated') {
 268                         echo "error = 1\nerror_text = Terminated\n";
 269                     } else {
 270                         echo "error = 1\nerror_text = Not Initialized\n";
 271                     }
 272                 break;
 273                 case 'putinteractions':
 274                     if ($status == 'Running') {
 275                         echo "error = 0\nerror_text = Successful\n";
 276                     } else if ($status == 'Terminated') {
 277                         echo "error = 1\nerror_text = Terminated\n";
 278                     } else {
 279                         echo "error = 1\nerror_text = Not Initialized\n";
 280                     }
 281                 break;
 282                 case 'putobjectives':
 283                     if ($status == 'Running') {
 284                         echo "error = 0\nerror_text = Successful\n";
 285                     } else if ($status == 'Terminated') {
 286                         echo "error = 1\nerror_text = Terminated\n";
 287                     } else {
 288                         echo "error = 1\nerror_text = Not Initialized\n";
 289                     }
 290                 break;
 291                 case 'putpath':
 292                     if ($status == 'Running') {
 293                         echo "error = 0\nerror_text = Successful\n";
 294                     } else if ($status == 'Terminated') {
 295                         echo "error = 1\nerror_text = Terminated\n";
 296                     } else {
 297                         echo "error = 1\nerror_text = Not Initialized\n";
 298                     }
 299                 break;
 300                 case 'putperformance':
 301                     if ($status == 'Running') {
 302                         echo "error = 0\nerror_text = Successful\n";
 303                     } else if ($status == 'Terminated') {
 304                         echo "error = 1\nerror_text = Terminated\n";
 305                     } else {
 306                         echo "error = 1\nerror_text = Not Initialized\n";
 307                     }
 308                 break;
 309                 case 'exitau':
 310                     if ($status == 'Running') {
 311                         if (isset($SESSION->scorm_session_time) && ($SESSION->scorm_session_time != '')) {
 312                             if ($track = get_record_select('scorm_scoes_track',"userid='$USER->id' AND scormid='$scorm->id' AND scoid='$sco->id' AND element='cmi.core.total_time'")) {
 313                                 // Add session_time to total_time
 314                                 $value = scorm_add_time($track->value, $SESSION->scorm_session_time);
 315                                 $track->value = $value;
 316                                 $track->timemodified = time();
 317                                 $id = update_record('scorm_scoes_track',$track);
 318                             } else {
 319                                 $track->userid = $USER->id;
 320                                 $track->scormid = $scorm->id;
 321                                 $track->scoid = $sco->id;
 322                                 $track->element = 'cmi.core.total_time';
 323                                 $track->value = $SESSION->scorm_session_time;
 324                                 $track->timemodified = time();
 325                                 $id = insert_record('scorm_scoes_track',$track);
 326                             }
 327                         }
 328
 329                         $SESSION->scorm_status = 'Terminated';
 330                         $SESSION->scorm_session_time = '';
 331                         echo "error = 0\nerror_text = Successful\n";
 332                     } else if ($status == 'Terminated') {
 333                         echo "error = 1\nerror_text = Terminated\n";
 334                     } else {
 335                         echo "error = 1\nerror_text = Not Initialized\n";
 336                     }
 337                 break;
 338                 default:
 339                     echo "error = 1\nerror_text = Invalid Command\n";
 340                 break;
 341             }
 342         }
 343     } else {
 344         if (empty($command)) {
 345             echo "error = 1\nerror_text = Invalid Command\n";
 346         } else {
 347             echo "error = 3\nerror_text = Invalid Session ID\n";
 348         }
 349     }
 350 ?>