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1 | <?php // $Id$ |
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2 | |
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3 | /// Constants and settings for module scorm |
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4 | define('UPDATE_NEVER', '0'); |
5 | define('UPDATE_ONCHANGE', '1'); |
6 | define('UPDATE_EVERYDAY', '2'); |
7 | define('UPDATE_EVERYTIME', '3'); |
8 | |
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9 | define('SCO_ALL', 0); |
10 | define('SCO_DATA', 1); |
11 | define('SCO_ONLY', 2); |
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12 | |
13 | define('GRADESCOES', '0'); |
14 | define('GRADEHIGHEST', '1'); |
15 | define('GRADEAVERAGE', '2'); |
16 | define('GRADESUM', '3'); |
17 | $SCORM_GRADE_METHOD = array (GRADESCOES => get_string('gradescoes', 'scorm'), |
18 | GRADEHIGHEST => get_string('gradehighest', 'scorm'), |
19 | GRADEAVERAGE => get_string('gradeaverage', 'scorm'), |
20 | GRADESUM => get_string('gradesum', 'scorm')); |
21 | |
22 | define('HIGHESTATTEMPT', '0'); |
23 | define('AVERAGEATTEMPT', '1'); |
24 | define('FIRSTATTEMPT', '2'); |
25 | define('LASTATTEMPT', '3'); |
26 | $SCORM_WHAT_GRADE = array (HIGHESTATTEMPT => get_string('highestattempt', 'scorm'), |
27 | AVERAGEATTEMPT => get_string('averageattempt', 'scorm'), |
28 | FIRSTATTEMPT => get_string('firstattempt', 'scorm'), |
29 | LASTATTEMPT => get_string('lastattempt', 'scorm')); |
30 | |
31 | $SCORM_POPUP_OPTIONS = array('resizable'=>1, |
32 | 'scrollbars'=>1, |
33 | 'directories'=>0, |
34 | 'location'=>0, |
35 | 'menubar'=>0, |
36 | 'toolbar'=>0, |
37 | 'status'=>0); |
38 | $stdoptions = ''; |
39 | foreach ($SCORM_POPUP_OPTIONS as $popupopt => $value) { |
40 | $stdoptions .= $popupopt.'='.$value; |
41 | if ($popupopt != 'status') { |
42 | $stdoptions .= ','; |
43 | } |
44 | } |
45 | |
46 | if (!isset($CFG->scorm_maxattempts)) { |
47 | set_config('scorm_maxattempts','6'); |
48 | } |
49 | |
50 | if (!isset($CFG->scorm_frameheight)) { |
51 | set_config('scorm_frameheight','500'); |
52 | } |
53 | |
54 | if (!isset($CFG->scorm_framewidth)) { |
55 | set_config('scorm_framewidth','100%'); |
56 | } |
57 | |
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58 | if (!isset($CFG->scorm_updatetime)) { |
59 | set_config('scorm_updatetime','2'); |
60 | } |
61 | |
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62 | if (!isset($CFG->scorm_advancedsettings)) { |
63 | set_config('scorm_advancedsettings','0'); |
64 | } |
65 | |
66 | if (!isset($CFG->scorm_windowsettings)) { |
67 | set_config('scorm_windowsettings','0'); |
68 | } |
69 | |
70 | // |
71 | // Repository configurations |
72 | // |
73 | $repositoryconfigfile = $CFG->dirroot.'/mod/resource/type/ims/repository_config.php'; |
74 | $repositorybrowser = '/mod/resource/type/ims/finder.php'; |
75 | |
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76 | /// Local Library of functions for module scorm |
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77 | |
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78 | /** |
79 | * This function will permanently delete the given |
80 | * directory and all files and subdirectories. |
81 | * |
82 | * @param string $directory The directory to remove |
83 | * @return boolean |
84 | */ |
85 | function scorm_delete_files($directory) { |
86 | if (is_dir($directory)) { |
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87 | $files=scandir($directory); |
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88 | set_time_limit(0); |
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89 | foreach($files as $file) { |
90 | if (($file != '.') && ($file != '..')) { |
91 | if (!is_dir($directory.'/'.$file)) { |
92 | unlink($directory.'/'.$file); |
93 | } else { |
94 | scorm_delete_files($directory.'/'.$file); |
95 | } |
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96 | } |
97 | } |
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98 | rmdir($directory); |
99 | return true; |
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100 | } |
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101 | return false; |
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102 | } |
103 | |
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104 | /** |
105 | * Create a new temporary subdirectory with a random name in the given path |
106 | * |
107 | * @param string $strpath The scorm data directory |
108 | * @return string/boolean |
109 | */ |
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110 | function scorm_tempdir($strPath) |
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111 | { |
112 | global $CFG; |
113 | |
114 | if (is_dir($strPath)) { |
115 | do { |
116 | // Create a random string of 8 chars |
117 | $randstring = NULL; |
118 | $lchar = ''; |
119 | $len = 8; |
120 | for ($i=0; $i<$len; $i++) { |
121 | $char = chr(rand(48,122)); |
122 | while (!ereg('[a-zA-Z0-9]', $char)){ |
123 | if ($char == $lchar) continue; |
124 | $char = chr(rand(48,90)); |
125 | } |
126 | $randstring .= $char; |
127 | $lchar = $char; |
128 | } |
129 | $datadir='/'.$randstring; |
130 | } while (file_exists($strPath.$datadir)); |
131 | mkdir($strPath.$datadir, $CFG->directorypermissions); |
132 | @chmod($strPath.$datadir, $CFG->directorypermissions); // Just in case mkdir didn't do it |
133 | return $strPath.$datadir; |
134 | } else { |
135 | return false; |
136 | } |
137 | } |
138 | |
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139 | function scorm_array_search($item, $needle, $haystacks, $strict=false) { |
140 | if (!empty($haystacks)) { |
141 | foreach ($haystacks as $key => $element) { |
142 | if ($strict) { |
143 | if ($element->{$item} === $needle) { |
144 | return $key; |
145 | } |
146 | } else { |
147 | if ($element->{$item} == $needle) { |
148 | return $key; |
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149 | } |
150 | } |
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151 | } |
152 | } |
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153 | return false; |
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154 | } |
155 | |
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156 | function scorm_repeater($what, $times) { |
157 | if ($times <= 0) { |
158 | return null; |
159 | } |
160 | $return = ''; |
161 | for ($i=0; $i<$times;$i++) { |
162 | $return .= $what; |
163 | } |
164 | return $return; |
165 | } |
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166 | |
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167 | function scorm_external_link($link) { |
168 | // check if a link is external |
169 | $result = false; |
170 | $link = strtolower($link); |
171 | if (substr($link,0,7) == 'http://') { |
172 | $result = true; |
173 | } else if (substr($link,0,8) == 'https://') { |
174 | $result = true; |
175 | } else if (substr($link,0,4) == 'www.') { |
176 | $result = true; |
177 | } |
178 | return $result; |
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179 | } |
180 | |
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181 | /** |
182 | * Returns an object containing all datas relative to the given sco ID |
183 | * |
184 | * @param integer $id The sco ID |
185 | * @return mixed (false if sco id does not exists) |
186 | */ |
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187 | |
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188 | function scorm_get_sco($id,$what=SCO_ALL) { |
189 | if ($sco = get_record('scorm_scoes','id',$id)) { |
190 | $sco = ($what == SCO_DATA) ? new stdClass() : $sco; |
191 | if (($what != SCO_ONLY) && ($scodatas = get_records('scorm_scoes_data','scoid',$id))) { |
192 | foreach ($scodatas as $scodata) { |
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193 | $sco->{$scodata->name} = $scodata->value; |
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194 | } |
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195 | } else if (($what != SCO_ONLY) && (!($scodatas = get_records('scorm_scoes_data','scoid',$id)))) { |
196 | $sco->parameters = ''; |
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197 | } |
198 | return $sco; |
199 | } else { |
200 | return false; |
201 | } |
202 | } |
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203 | function scorm_insert_track($userid,$scormid,$scoid,$attempt,$element,$value) { |
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204 | $id = null; |
205 | if ($track = get_record_select('scorm_scoes_track',"userid='$userid' AND scormid='$scormid' AND scoid='$scoid' AND attempt='$attempt' AND element='$element'")) { |
206 | $track->value = $value; |
207 | $track->timemodified = time(); |
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208 | $id = update_record('scorm_scoes_track',$track); |
209 | } else { |
210 | $track->userid = $userid; |
211 | $track->scormid = $scormid; |
212 | $track->scoid = $scoid; |
213 | $track->attempt = $attempt; |
214 | $track->element = $element; |
215 | $track->value = addslashes($value); |
216 | $track->timemodified = time(); |
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217 | $id = insert_record('scorm_scoes_track',$track); |
218 | } |
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219 | |
220 | // MDL-9552, update the gradebook everything raw score is sent |
221 | if (strstr($element, '.score.raw')) { |
222 | $scorm = get_record('scorm', 'id', $scormid); |
223 | include_once('lib.php'); |
224 | scorm_update_grades($scorm, $userid); |
225 | } |
226 | |
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227 | return $id; |
228 | } |
229 | |
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230 | function scorm_get_tracks($scoid,$userid,$attempt='') { |
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231 | /// Gets all tracks of specified sco and user |
232 | global $CFG; |
233 | |
234 | if (empty($attempt)) { |
235 | if ($scormid = get_field('scorm_scoes','scorm','id',$scoid)) { |
236 | $attempt = scorm_get_last_attempt($scormid,$userid); |
237 | } else { |
238 | $attempt = 1; |
239 | } |
240 | } |
241 | $attemptsql = ' AND attempt=' . $attempt; |
242 | if ($tracks = get_records_select('scorm_scoes_track',"userid=$userid AND scoid=$scoid".$attemptsql,'element ASC')) { |
243 | $usertrack->userid = $userid; |
244 | $usertrack->scoid = $scoid; |
a30b6819 |
245 | // Defined in order to unify scorm1.2 and scorm2004 |
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246 | $usertrack->score_raw = ''; |
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247 | $usertrack->status = ''; |
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248 | $usertrack->total_time = '00:00:00'; |
249 | $usertrack->session_time = '00:00:00'; |
250 | $usertrack->timemodified = 0; |
251 | foreach ($tracks as $track) { |
252 | $element = $track->element; |
253 | $usertrack->{$element} = $track->value; |
254 | switch ($element) { |
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255 | case 'cmi.core.lesson_status': |
256 | case 'cmi.completion_status': |
257 | if ($track->value == 'not attempted') { |
258 | $track->value = 'notattempted'; |
259 | } |
260 | $usertrack->status = $track->value; |
261 | break; |
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262 | case 'cmi.core.score.raw': |
263 | case 'cmi.score.raw': |
264 | $usertrack->score_raw = $track->value; |
265 | break; |
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266 | case 'cmi.core.session_time': |
267 | case 'cmi.session_time': |
268 | $usertrack->session_time = $track->value; |
269 | break; |
270 | case 'cmi.core.total_time': |
271 | case 'cmi.total_time': |
272 | $usertrack->total_time = $track->value; |
273 | break; |
274 | } |
275 | if (isset($track->timemodified) && ($track->timemodified > $usertrack->timemodified)) { |
276 | $usertrack->timemodified = $track->timemodified; |
277 | } |
278 | } |
279 | return $usertrack; |
280 | } else { |
281 | return false; |
282 | } |
283 | } |
284 | |
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285 | function scorm_get_user_data($userid) { |
286 | /// Gets user info required to display the table of scorm results |
287 | /// for report.php |
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288 | |
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289 | return get_record('user','id',$userid,'','','','','firstname, lastname, picture'); |
290 | } |
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291 | |
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292 | function scorm_grade_user_attempt($scorm, $userid, $attempt=1, $time=false) { |
293 | $attemptscore = NULL; |
294 | $attemptscore->scoes = 0; |
295 | $attemptscore->values = 0; |
296 | $attemptscore->max = 0; |
297 | $attemptscore->sum = 0; |
298 | $attemptscore->lastmodify = 0; |
299 | |
300 | if (!$scoes = get_records('scorm_scoes','scorm',$scorm->id)) { |
301 | return NULL; |
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302 | } |
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303 | |
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304 | $grademethod = $scorm->grademethod % 10; |
305 | |
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306 | foreach ($scoes as $sco) { |
307 | if ($userdata=scorm_get_tracks($sco->id, $userid,$attempt)) { |
308 | if (($userdata->status == 'completed') || ($userdata->status == 'passed')) { |
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309 | $attemptscore->scoes++; |
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310 | } |
311 | if (!empty($userdata->score_raw)) { |
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312 | $attemptscore->values++; |
313 | $attemptscore->sum += $userdata->score_raw; |
314 | $attemptscore->max = ($userdata->score_raw > $attemptscore->max)?$userdata->score_raw:$attemptscore->max; |
315 | if (isset($userdata->timemodified) && ($userdata->timemodified > $attemptscore->lastmodify)) { |
316 | $attemptscore->lastmodify = $userdata->timemodified; |
317 | } else { |
318 | $attemptscore->lastmodify = 0; |
319 | } |
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320 | } |
321 | } |
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322 | } |
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323 | switch ($grademethod) { |
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324 | case GRADEHIGHEST: |
325 | $score = $attemptscore->max; |
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326 | break; |
a30b6819 |
327 | case GRADEAVERAGE: |
328 | if ($attemptscore->values > 0) { |
329 | $score = $attemptscore->sum/$attemptscore->values; |
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330 | } else { |
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331 | $score = 0; |
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332 | } |
333 | break; |
a30b6819 |
334 | case GRADESUM: |
335 | $score = $attemptscore->sum; |
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336 | break; |
a30b6819 |
337 | case GRADESCOES: |
338 | $score = $attemptscore->scoes; |
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339 | break; |
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340 | } |
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341 | |
342 | if ($time) { |
343 | $result = new stdClass(); |
344 | $result->score = $score; |
345 | $result->time = $attemptscore->lastmodify; |
346 | } else { |
347 | $result = $score; |
348 | } |
349 | |
350 | return $result; |
351 | } |
352 | |
353 | function scorm_grade_user($scorm, $userid, $time=false) { |
354 | |
355 | $whatgrade = intval($scorm->grademethod / 10); |
356 | |
357 | switch ($whatgrade) { |
358 | case FIRSTATTEMPT: |
359 | return scorm_grade_user_attempt($scorm, $userid, 1, $time); |
360 | break; |
361 | case LASTATTEMPT: |
362 | return scorm_grade_user_attempt($scorm, $userid, scorm_get_last_attempt($scorm->id, $userid), $time); |
363 | break; |
364 | case HIGHESTATTEMPT: |
365 | $lastattempt = scorm_get_last_attempt($scorm->id, $userid); |
366 | $maxscore = 0; |
367 | $attempttime = 0; |
368 | for ($attempt = 1; $attempt <= $lastattempt; $attempt++) { |
369 | $attemptscore = scorm_grade_user_attempt($scorm, $userid, $attempt, $time); |
370 | if ($time) { |
371 | if ($attemptscore->score > $maxscore) { |
372 | $maxscore = $attemptscore->score; |
373 | $attempttime = $attemptscore->time; |
374 | } |
375 | } else { |
376 | $maxscore = $attemptscore > $maxscore ? $attemptscore: $maxscore; |
377 | } |
378 | } |
379 | if ($time) { |
380 | $result = new stdClass(); |
381 | $result->score = $maxscore; |
382 | $result->time = $attempttime; |
383 | return $result; |
384 | } else { |
385 | return $maxscore; |
386 | } |
387 | break; |
388 | case AVERAGEATTEMPT: |
389 | $lastattempt = scorm_get_last_attempt($scorm->id, $userid); |
390 | $sumscore = 0; |
391 | for ($attempt = 1; $attempt <= $lastattempt; $attempt++) { |
392 | $attemptscore = scorm_grade_user_attempt($scorm, $userid, $attempt, $time); |
393 | if ($time) { |
394 | $sumscore += $attemptscore->score; |
395 | } else { |
396 | $sumscore += $attemptscore; |
397 | } |
398 | } |
399 | |
400 | if ($lastattempt > 0) { |
401 | $score = $sumscore / $lastattempt; |
402 | } else { |
403 | $score = 0; |
404 | } |
405 | |
406 | if ($time) { |
407 | $result = new stdClass(); |
408 | $result->score = $score; |
409 | $result->time = $attemptscore->time; |
410 | return $result; |
411 | } else { |
412 | return $score; |
413 | } |
414 | break; |
415 | } |
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416 | } |
417 | |
8e45ba45 |
418 | function scorm_count_launchable($scormid,$organization='') { |
419 | $strorganization = ''; |
420 | if (!empty($organization)) { |
421 | $strorganization = " AND organization='$organization'"; |
422 | } |
423 | return count_records_select('scorm_scoes',"scorm=$scormid$strorganization AND launch<>''"); |
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424 | } |
425 | |
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426 | function scorm_get_last_attempt($scormid, $userid) { |
427 | /// Find the last attempt number for the given user id and scorm id |
428 | if ($lastattempt = get_record('scorm_scoes_track', 'userid', $userid, 'scormid', $scormid, '', '', 'max(attempt) as a')) { |
429 | if (empty($lastattempt->a)) { |
430 | return '1'; |
431 | } else { |
432 | return $lastattempt->a; |
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433 | } |
434 | } |
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435 | } |
436 | |
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437 | function scorm_course_format_display($user,$course) { |
438 | global $CFG; |
439 | |
440 | $strupdate = get_string('update'); |
441 | $strmodule = get_string('modulename','scorm'); |
77bf0c29 |
442 | $context = get_context_instance(CONTEXT_COURSE,$course->id); |
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443 | |
444 | echo '<div class="mod-scorm">'; |
445 | if ($scorms = get_all_instances_in_course('scorm', $course)) { |
446 | // The module SCORM activity with the least id is the course |
447 | $scorm = current($scorms); |
448 | if (! $cm = get_coursemodule_from_instance('scorm', $scorm->id, $course->id)) { |
5a2a5331 |
449 | print_error('Course Module ID was incorrect'); |
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450 | } |
451 | $colspan = ''; |
452 | $headertext = '<table width="100%"><tr><td class="title">'.get_string('name').': <b>'.format_string($scorm->name).'</b>'; |
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453 | if (has_capability('moodle/course:manageactivities', $context)) { |
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454 | if (isediting($course->id)) { |
455 | // Display update icon |
456 | $path = $CFG->wwwroot.'/course'; |
457 | $headertext .= '<span class="commands">'. |
458 | '<a title="'.$strupdate.'" href="'.$path.'/mod.php?update='.$cm->id.'&sesskey='.sesskey().'">'. |
0d905d9f |
459 | '<img src="'.$CFG->pixpath.'/t/edit.gif" class="iconsmall" alt="'.$strupdate.'" /></a></span>'; |
e4aa175a |
460 | } |
461 | $headertext .= '</td>'; |
462 | // Display report link |
463 | $trackedusers = get_record('scorm_scoes_track', 'scormid', $scorm->id, '', '', '', '', 'count(distinct(userid)) as c'); |
464 | if ($trackedusers->c > 0) { |
465 | $headertext .= '<td class="reportlink">'. |
fa738731 |
466 | '<a '.$CFG->frametarget.'" href="'.$CFG->wwwroot.'/mod/scorm/report.php?id='.$cm->id.'">'. |
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467 | get_string('viewallreports','scorm',$trackedusers->c).'</a>'; |
468 | } else { |
469 | $headertext .= '<td class="reportlink">'.get_string('noreports','scorm'); |
470 | } |
471 | $colspan = ' colspan="2"'; |
472 | } |
473 | $headertext .= '</td></tr><tr><td'.$colspan.'>'.format_text(get_string('summary').':<br />'.$scorm->summary).'</td></tr></table>'; |
474 | print_simple_box($headertext,'','100%'); |
475 | scorm_view_display($user, $scorm, 'view.php?id='.$course->id, $cm, '100%'); |
476 | } else { |
0d699c24 |
477 | if (has_capability('moodle/course:update', $context)) { |
e4aa175a |
478 | // Create a new activity |
2b3447c3 |
479 | redirect($CFG->wwwroot.'/course/mod.php?id='.$course->id.'&section=0&sesskey='.sesskey().'&add=scorm'); |
e4aa175a |
480 | } else { |
481 | notify('Could not find a scorm course here'); |
482 | } |
483 | } |
484 | echo '</div>'; |
485 | } |
486 | |
2b3447c3 |
487 | function scorm_view_display ($user, $scorm, $action, $cm, $boxwidth='') { |
534792cd |
488 | global $CFG, $DB; |
ab3b00e1 |
489 | |
490 | if ($scorm->updatefreq == UPDATE_EVERYTIME){ |
5d2b8013 |
491 | require_once($CFG->dirroot.'/mod/scorm/lib.php'); |
492 | |
ab3b00e1 |
493 | $scorm->instance = $scorm->id; |
494 | scorm_update_instance($scorm); |
495 | } |
496 | |
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497 | $organization = optional_param('organization', '', PARAM_INT); |
498 | |
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499 | print_simple_box_start('center',$boxwidth); |
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500 | ?> |
29a43013 |
501 | <div class="structurehead"><?php print_string('contents','scorm') ?></div> |
e4aa175a |
502 | <?php |
503 | if (empty($organization)) { |
504 | $organization = $scorm->launch; |
505 | } |
534792cd |
506 | if ($orgs = $DB->get_records_select_menu('scorm_scoes', array('scorm'=>$scorm->id, 'organization'=>'', 'launch'=>''), 'id', 'id,title')) { |
e4aa175a |
507 | if (count($orgs) > 1) { |
508 | ?> |
509 | <div class='center'> |
510 | <?php print_string('organizations','scorm') ?> |
b7dc2256 |
511 | <form id='changeorg' method='post' action='<?php echo $action ?>'> |
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512 | <?php choose_from_menu($orgs, 'organization', "$organization", '','submit()') ?> |
513 | </form> |
514 | </div> |
515 | <?php |
516 | } |
517 | } |
518 | $orgidentifier = ''; |
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519 | if ($sco = scorm_get_sco($organization, SCO_ONLY)) { |
520 | if (($sco->organization == '') && ($sco->launch == '')) { |
521 | $orgidentifier = $sco->identifier; |
e4aa175a |
522 | } else { |
b3659259 |
523 | $orgidentifier = $sco->organization; |
e4aa175a |
524 | } |
525 | } |
28ffbff3 |
526 | |
527 | /* |
528 | $orgidentifier = ''; |
529 | if ($org = get_record('scorm_scoes','id',$organization)) { |
530 | if (($org->organization == '') && ($org->launch == '')) { |
531 | $orgidentifier = $org->identifier; |
532 | } else { |
533 | $orgidentifier = $org->organization; |
534 | } |
535 | }*/ |
536 | |
2b3447c3 |
537 | $scorm->version = strtolower(clean_param($scorm->version, PARAM_SAFEDIR)); // Just to be safe |
dbe7e6f6 |
538 | if (!file_exists($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php')) { |
539 | $scorm->version = 'scorm_12'; |
540 | } |
2b3447c3 |
541 | require_once($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php'); |
542 | |
e4aa175a |
543 | $result = scorm_get_toc($user,$scorm,'structlist',$orgidentifier); |
544 | $incomplete = $result->incomplete; |
e4aa175a |
545 | echo $result->toc; |
e4aa175a |
546 | print_simple_box_end(); |
28ffbff3 |
547 | |
e4aa175a |
548 | ?> |
549 | <div class="center"> |
04bc70fc |
550 | <form id="theform" method="post" action="<?php echo $CFG->wwwroot ?>/mod/scorm/player.php?scoid=<?php echo $sco->id ?>&id=<?php echo $cm->id ?>"<?php echo $scorm->popup == 1?' target="newwin"':'' ?>> |
e4aa175a |
551 | <?php |
e4aa175a |
552 | if ($scorm->hidebrowse == 0) { |
8949f8df |
553 | print_string('mode','scorm'); |
97be0533 |
554 | echo '<input type="hidden" name="scoid" value="'.$sco->id.'" />'."\n"; |
e4aa175a |
555 | echo ': <input type="radio" id="b" name="mode" value="browse" /><label for="b">'.get_string('browse','scorm').'</label>'."\n"; |
76ea4fb4 |
556 | echo '<input type="radio" id="n" name="mode" value="normal" checked="checked" /><label for="n">'.get_string('normal','scorm')."</label>\n"; |
e4aa175a |
557 | } else { |
76ea4fb4 |
558 | echo '<input type="hidden" name="mode" value="normal" />'."\n"; |
e4aa175a |
559 | } |
560 | if (($incomplete === false) && (($result->attemptleft > 0)||($scorm->maxattempt == 0))) { |
561 | ?> |
562 | <br /> |
563 | <input type="checkbox" id="a" name="newattempt" /> |
564 | <label for="a"><?php print_string('newattempt','scorm') ?></label> |
565 | <?php |
566 | } |
567 | ?> |
568 | <br /> |
28ffbff3 |
569 | <input type="hidden" name="scoid"/> |
e4aa175a |
570 | <input type="hidden" name="currentorg" value="<?php echo $orgidentifier ?>" /> |
2b600d16 |
571 | <input type="submit" value="<?php print_string('enter','scorm') ?>" /> |
e4aa175a |
572 | </form> |
573 | </div> |
574 | <?php |
575 | } |
28ffbff3 |
576 | function scorm_simple_play($scorm,$user) { |
577 | $result = false; |
578 | |
579 | $scoes = get_records_select('scorm_scoes','scorm='.$scorm->id.' AND launch<>\'\''); |
28ffbff3 |
580 | |
fa6eb1dc |
581 | if ($scoes && (count($scoes) == 1)) { |
28ffbff3 |
582 | if ($scorm->skipview >= 1) { |
583 | $sco = current($scoes); |
584 | if (scorm_get_tracks($sco->id,$user->id) === false) { |
45698041 |
585 | header('Location: player.php?a='.$scorm->id.'&scoid='.$sco->id); |
28ffbff3 |
586 | $result = true; |
587 | } else if ($scorm->skipview == 2) { |
45698041 |
588 | header('Location: player.php?a='.$scorm->id.'&scoid='.$sco->id); |
28ffbff3 |
589 | $result = true; |
590 | } |
591 | } |
592 | } |
28ffbff3 |
593 | return $result; |
594 | } |
595 | /* |
8e45ba45 |
596 | function scorm_simple_play($scorm,$user) { |
597 | $result = false; |
76ea4fb4 |
598 | if ($scoes = get_records_select('scorm_scoes','scorm='.$scorm->id.' AND launch<>""')) { |
599 | if (count($scoes) == 1) { |
600 | if ($scorm->skipview >= 1) { |
601 | $sco = current($scoes); |
602 | if (scorm_get_tracks($sco->id,$user->id) === false) { |
603 | header('Location: player.php?a='.$scorm->id.'&scoid='.$sco->id); |
604 | $result = true; |
605 | } else if ($scorm->skipview == 2) { |
606 | header('Location: player.php?a='.$scorm->id.'&scoid='.$sco->id); |
607 | $result = true; |
608 | } |
8e45ba45 |
609 | } |
610 | } |
611 | } |
612 | return $result; |
613 | } |
28ffbff3 |
614 | */ |
a30b6819 |
615 | function scorm_parse($scorm) { |
616 | global $CFG,$repositoryconfigfile; |
45698041 |
617 | |
8949f8df |
618 | if ($scorm->reference[0] == '#') { |
45698041 |
619 | require_once($repositoryconfigfile); |
620 | if ($CFG->repositoryactivate) { |
621 | $referencedir = $CFG->repository.substr($scorm->reference,1); |
622 | } |
8949f8df |
623 | } else { |
45698041 |
624 | if ((!scorm_external_link($scorm->reference)) && (basename($scorm->reference) == 'imsmanifest.xml')) { |
625 | $referencedir = $CFG->dataroot.'/'.$scorm->course.'/'.$scorm->datadir; |
626 | } else { |
627 | $referencedir = $CFG->dataroot.'/'.$scorm->course.'/moddata/scorm/'.$scorm->id; |
628 | } |
8949f8df |
629 | } |
45698041 |
630 | |
a30b6819 |
631 | // Parse scorm manifest |
632 | if ($scorm->pkgtype == 'AICC') { |
633 | require_once('datamodels/aicclib.php'); |
45698041 |
634 | $scorm->launch = scorm_parse_aicc($referencedir, $scorm->id); |
a30b6819 |
635 | } else { |
636 | require_once('datamodels/scormlib.php'); |
a30b6819 |
637 | if ($scorm->reference[0] == '#') { |
638 | require_once($repositoryconfigfile); |
a30b6819 |
639 | } |
45698041 |
640 | $scorm->launch = scorm_parse_scorm($referencedir,$scorm->id); |
a30b6819 |
641 | } |
642 | return $scorm->launch; |
643 | } |
644 | |
76ea4fb4 |
645 | /** |
646 | * Given a manifest path, this function will check if the manifest is valid |
647 | * |
648 | * @param string $manifest The manifest file |
649 | * @return object |
650 | */ |
651 | function scorm_validate_manifest($manifest) { |
652 | $validation = new stdClass(); |
653 | if (is_file($manifest)) { |
a679d64d |
654 | $validation->result = true; |
76ea4fb4 |
655 | } else { |
a679d64d |
656 | $validation->result = false; |
657 | $validation->errors['reference'] = get_string('nomanifest','scorm'); |
76ea4fb4 |
658 | } |
659 | return $validation; |
660 | } |
661 | |
662 | /** |
663 | * Given a aicc package directory, this function will check if the course structure is valid |
664 | * |
665 | * @param string $packagedir The aicc package directory path |
666 | * @return object |
667 | */ |
668 | function scorm_validate_aicc($packagedir) { |
669 | $validation = new stdClass(); |
a679d64d |
670 | $validation->result = false; |
76ea4fb4 |
671 | if (is_dir($packagedir)) { |
672 | if ($handle = opendir($packagedir)) { |
673 | while (($file = readdir($handle)) !== false) { |
674 | $ext = substr($file,strrpos($file,'.')); |
675 | if (strtolower($ext) == '.cst') { |
a679d64d |
676 | $validation->result = true; |
76ea4fb4 |
677 | break; |
678 | } |
679 | } |
680 | closedir($handle); |
681 | } |
682 | } |
a679d64d |
683 | if ($validation->result == false) { |
684 | $validation->errors['reference'] = get_string('nomanifest','scorm'); |
76ea4fb4 |
685 | } |
686 | return $validation; |
687 | } |
688 | |
689 | |
690 | function scorm_validate($data) { |
691 | global $CFG; |
692 | |
a679d64d |
693 | $validation = new stdClass(); |
694 | $validation->errors = array(); |
695 | |
696 | if (!isset($data['course']) || empty($data['course'])) { |
697 | $validation->errors['reference'] = get_string('missingparam','scorm'); |
698 | $validation->result = false; |
699 | return $validation; |
700 | } |
701 | $courseid = $data['course']; // Course Module ID |
702 | |
703 | if (!isset($data['reference']) || empty($data['reference'])) { |
704 | $validation->errors['reference'] = get_string('packagefile','scorm'); |
705 | $validation->result = false; |
706 | return $validation; |
707 | } |
708 | $reference = $data['reference']; // Package/manifest path/location |
709 | |
710 | $scormid = $data['instance']; // scorm ID |
711 | $scorm = new stdClass(); |
712 | if (!empty($scormid)) { |
8949f8df |
713 | if (!$scorm = get_record('scorm','id',$scormid)) { |
a679d64d |
714 | $validation->errors['reference'] = get_string('missingparam','scorm'); |
715 | $validation->result = false; |
716 | return $validation; |
717 | } |
718 | } |
719 | |
720 | if ($reference[0] == '#') { |
721 | require_once($repositoryconfigfile); |
722 | if ($CFG->repositoryactivate) { |
723 | $reference = $CFG->repository.substr($reference,1).'/imsmanifest.xml'; |
724 | } else { |
725 | $validation->errors['reference'] = get_string('badpackage','scorm'); |
726 | $validation->result = false; |
727 | return $validation; |
728 | } |
729 | } else if (!scorm_external_link($reference)) { |
730 | $reference = $CFG->dataroot.'/'.$courseid.'/'.$reference; |
731 | } |
732 | |
733 | // Create a temporary directory to unzip package or copy manifest and validate package |
734 | $tempdir = ''; |
735 | $scormdir = ''; |
736 | if ($scormdir = make_upload_directory("$courseid/$CFG->moddata/scorm")) { |
737 | if ($tempdir = scorm_tempdir($scormdir)) { |
8949f8df |
738 | $localreference = $tempdir.'/'.basename($reference); |
a679d64d |
739 | copy ("$reference", $localreference); |
740 | if (!is_file($localreference)) { |
741 | $validation->errors['reference'] = get_string('badpackage','scorm'); |
742 | $validation->result = false; |
743 | } else { |
744 | $ext = strtolower(substr(basename($localreference),strrpos(basename($localreference),'.'))); |
745 | switch ($ext) { |
746 | case '.pif': |
747 | case '.zip': |
748 | if (!unzip_file($localreference, $tempdir, false)) { |
749 | $validation->errors['reference'] = get_string('unziperror','scorm'); |
750 | $validation->result = false; |
751 | } else { |
752 | unlink ($localreference); |
753 | if (is_file($tempdir.'/imsmanifest.xml')) { |
754 | $validation = scorm_validate_manifest($tempdir.'/imsmanifest.xml'); |
755 | $validation->pkgtype = 'SCORM'; |
756 | } else { |
757 | $validation = scorm_validate_aicc($tempdir); |
758 | if (($validation->result == 'regular') || ($validation->result == 'found')) { |
759 | $validation->pkgtype = 'AICC'; |
760 | } else { |
761 | $validation->errors['reference'] = get_string('nomanifest','scorm'); |
762 | $validation->result = false; |
763 | } |
764 | } |
765 | } |
766 | break; |
767 | case '.xml': |
768 | if (basename($localreference) == 'imsmanifest.xml') { |
769 | $validation = scorm_validate_manifest($localreference); |
770 | } else { |
771 | $validation->errors['reference'] = get_string('nomanifest','scorm'); |
772 | $validation->result = false; |
773 | } |
774 | break; |
775 | default: |
776 | $validation->errors['reference'] = get_string('badpackage','scorm'); |
777 | $validation->result = false; |
778 | break; |
779 | } |
780 | } |
781 | if (is_dir($tempdir)) { |
782 | // Delete files and temporary directory |
783 | scorm_delete_files($tempdir); |
784 | } |
785 | } else { |
786 | $validation->errors['reference'] = get_string('packagedir','scorm'); |
787 | $validation->result = false; |
788 | } |
789 | } else { |
790 | $validation->errors['reference'] = get_string('datadir','scorm'); |
791 | $validation->result = false; |
792 | } |
793 | return $validation; |
794 | } |
795 | |
796 | function scorm_check_package($data) { |
ab3b00e1 |
797 | global $CFG, $COURSE; |
a679d64d |
798 | |
76ea4fb4 |
799 | $courseid = $data->course; // Course Module ID |
800 | $reference = $data->reference; // Package path |
801 | $scormid = $data->instance; // scorm ID |
802 | |
803 | $validation = new stdClass(); |
a679d64d |
804 | |
805 | if (!empty($courseid) && !empty($reference)) { |
806 | $externalpackage = scorm_external_link($reference); |
807 | |
76ea4fb4 |
808 | $validation->launch = 0; |
76ea4fb4 |
809 | $referencefield = $reference; |
810 | if (empty($reference)) { |
a679d64d |
811 | $validation = null; |
76ea4fb4 |
812 | } else if ($reference[0] == '#') { |
813 | require_once($repositoryconfigfile); |
814 | if ($CFG->repositoryactivate) { |
815 | $referencefield = $reference.'/imsmanfest.xml'; |
816 | $reference = $CFG->repository.substr($reference,1).'/imsmanifest.xml'; |
817 | } else { |
a679d64d |
818 | $validation = null; |
76ea4fb4 |
819 | } |
a679d64d |
820 | } else if (!$externalpackage) { |
76ea4fb4 |
821 | $reference = $CFG->dataroot.'/'.$courseid.'/'.$reference; |
822 | } |
823 | |
824 | if (!empty($scormid)) { |
825 | // |
826 | // SCORM Update |
827 | // |
a679d64d |
828 | if ((!empty($validation)) && (is_file($reference) || $externalpackage)){ |
8aee93f1 |
829 | |
a679d64d |
830 | if (!$externalpackage) { |
831 | $mdcheck = md5_file($reference); |
832 | } else if ($externalpackage){ |
833 | if ($scormdir = make_upload_directory("$courseid/$CFG->moddata/scorm")) { |
834 | if ($tempdir = scorm_tempdir($scormdir)) { |
8949f8df |
835 | copy ("$reference", $tempdir.'/'.basename($reference)); |
836 | $mdcheck = md5_file($tempdir.'/'.basename($reference)); |
a679d64d |
837 | scorm_delete_files($tempdir); |
838 | } |
839 | } |
840 | } |
8aee93f1 |
841 | |
8949f8df |
842 | if ($scorm = get_record('scorm','id',$scormid)) { |
76ea4fb4 |
843 | if ($scorm->reference[0] == '#') { |
844 | require_once($repositoryconfigfile); |
845 | if ($CFG->repositoryactivate) { |
846 | $oldreference = $CFG->repository.substr($scorm->reference,1).'/imsmanifest.xml'; |
847 | } else { |
848 | $oldreference = $scorm->reference; |
849 | } |
a679d64d |
850 | } else if (!scorm_external_link($scorm->reference)) { |
76ea4fb4 |
851 | $oldreference = $CFG->dataroot.'/'.$courseid.'/'.$scorm->reference; |
a679d64d |
852 | } else { |
853 | $oldreference = $scorm->reference; |
854 | } |
76ea4fb4 |
855 | $validation->launch = $scorm->launch; |
a679d64d |
856 | if ((($oldreference == $reference) && ($mdcheck != $scorm->md5hash)) || ($oldreference != $reference)) { |
76ea4fb4 |
857 | // This is a new or a modified package |
858 | $validation->launch = 0; |
859 | } else { |
860 | // Old package already validated |
76ea4fb4 |
861 | if (strpos($scorm->version,'AICC') !== false) { |
862 | $validation->pkgtype = 'AICC'; |
863 | } else { |
864 | $validation->pkgtype = 'SCORM'; |
865 | } |
866 | } |
867 | } else { |
a679d64d |
868 | $validation = null; |
76ea4fb4 |
869 | } |
870 | } else { |
a679d64d |
871 | $validation = null; |
76ea4fb4 |
872 | } |
873 | } |
874 | //$validation->launch = 0; |
a679d64d |
875 | if (($validation != null) && ($validation->launch == 0)) { |
76ea4fb4 |
876 | // |
877 | // Package must be validated |
878 | // |
879 | $ext = strtolower(substr(basename($reference),strrpos(basename($reference),'.'))); |
a679d64d |
880 | $tempdir = ''; |
76ea4fb4 |
881 | switch ($ext) { |
882 | case '.pif': |
883 | case '.zip': |
884 | // Create a temporary directory to unzip package and validate package |
76ea4fb4 |
885 | $scormdir = ''; |
886 | if ($scormdir = make_upload_directory("$courseid/$CFG->moddata/scorm")) { |
a679d64d |
887 | if ($tempdir = scorm_tempdir($scormdir)) { |
8949f8df |
888 | copy ("$reference", $tempdir.'/'.basename($reference)); |
889 | unzip_file($tempdir.'/'.basename($reference), $tempdir, false); |
82e34576 |
890 | if (!$externalpackage) { |
8949f8df |
891 | unlink ($tempdir.'/'.basename($reference)); |
82e34576 |
892 | } |
76ea4fb4 |
893 | if (is_file($tempdir.'/imsmanifest.xml')) { |
894 | $validation = scorm_validate_manifest($tempdir.'/imsmanifest.xml'); |
895 | $validation->pkgtype = 'SCORM'; |
896 | } else { |
897 | $validation = scorm_validate_aicc($tempdir); |
898 | $validation->pkgtype = 'AICC'; |
899 | } |
900 | } else { |
a679d64d |
901 | $validation = null; |
76ea4fb4 |
902 | } |
903 | } else { |
a679d64d |
904 | $validation = null; |
76ea4fb4 |
905 | } |
906 | break; |
907 | case '.xml': |
908 | if (basename($reference) == 'imsmanifest.xml') { |
a679d64d |
909 | if ($externalpackage) { |
910 | if ($scormdir = make_upload_directory("$courseid/$CFG->moddata/scorm")) { |
911 | if ($tempdir = scorm_tempdir($scormdir)) { |
8949f8df |
912 | copy ("$reference", $tempdir.'/'.basename($reference)); |
913 | if (is_file($tempdir.'/'.basename($reference))) { |
ab3b00e1 |
914 | $validation = scorm_validate_manifest($tempdir.'/'.basename($reference)); |
915 | } else { |
916 | $validation = null; |
917 | } |
a679d64d |
918 | } |
919 | } |
920 | } else { |
45698041 |
921 | $validation = scorm_validate_manifest($reference); |
a679d64d |
922 | } |
ab3b00e1 |
923 | $validation->pkgtype = 'SCORM'; |
76ea4fb4 |
924 | } else { |
a679d64d |
925 | $validation = null; |
76ea4fb4 |
926 | } |
927 | break; |
928 | default: |
a679d64d |
929 | $validation = null; |
76ea4fb4 |
930 | break; |
931 | } |
a679d64d |
932 | if ($validation == null) { |
76ea4fb4 |
933 | if (is_dir($tempdir)) { |
934 | // Delete files and temporary directory |
935 | scorm_delete_files($tempdir); |
936 | } |
76ea4fb4 |
937 | } else { |
ab3b00e1 |
938 | if (($ext == '.xml') && (!$externalpackage)) { |
76ea4fb4 |
939 | $validation->datadir = dirname($referencefield); |
940 | } else { |
941 | $validation->datadir = substr($tempdir,strlen($scormdir)); |
942 | } |
943 | $validation->launch = 0; |
944 | } |
945 | } |
946 | } else { |
a679d64d |
947 | $validation = null; |
76ea4fb4 |
948 | } |
949 | return $validation; |
950 | } |
951 | |
d8c9d8a1 |
952 | |
953 | function scorm_get_count_users($scormid, $groupingid=null) { |
954 | |
955 | global $CFG; |
956 | |
957 | if (!empty($CFG->enablegroupings) && !empty($groupingid)) { |
958 | $sql = "SELECT COUNT(DISTINCT st.userid) |
959 | FROM {$CFG->prefix}scorm_scoes_track st |
960 | INNER JOIN {$CFG->prefix}groups_members gm ON st.userid = gm.userid |
961 | INNER JOIN {$CFG->prefix}groupings_groups gg ON gm.groupid = gg.groupid |
962 | WHERE st.scormid = $scormid AND gg.groupingid = $groupingid |
963 | "; |
964 | } else { |
965 | $sql = "SELECT COUNT(DISTINCT st.userid) |
966 | FROM {$CFG->prefix}scorm_scoes_track st |
967 | WHERE st.scormid = $scormid |
968 | "; |
969 | } |
970 | |
971 | return(count_records_sql($sql)); |
972 | } |
973 | |
e4aa175a |
974 | ?> |