2 /************************************************************************/
4 /************************************************************************/
5 /* Copyright (c) 2010 */
6 /* Inclusive Design Institute */
8 /* This program is free software. You can redistribute it and/or */
9 /* modify it under the terms of the GNU General Public License */
10 /* as published by the Free Software Foundation. */
11 /************************************************************************/
13 /** Commented by Cindy Li on Feb 2, 2010
14 * Modified from ATutor mods/_core/imscp/ims_import.php, SVN revision 9126
17 define('TR_INCLUDE_PATH', '../../include/');
19 // Validate OAuth token and set $SESSION['user_id']
20 // Must come before require(vitals.inc.php) because vitals redirects to index page
21 // when $SESSION['user_id'] is not set
22 $oauth_import = false; // whether the import request is from oauth web service
24 // By default, enable the import of associated tests and a4a objects
26 if (!isset($_POST['allow_test_import'])) $_POST['allow_test_import'] = 1;
27 if (!isset($_POST['allow_a4a_import'])) $_POST['allow_a4a_import'] = 1;
29 // the import request is from oauth web service, find the user id from the given token
30 if (isset($_GET['oauth_token']))
32 require_once(TR_INCLUDE_PATH.'config.inc.php');
33 require_once(TR_INCLUDE_PATH.'constants.inc.php');
35 if ($_GET['oauth_token'] == '')
37 echo "error=".urlencode('Empty OAuth token');
43 require_once(TR_INCLUDE_PATH.'classes/DAO/OAuthServerTokensDAO.class.php');
44 $oAuthServerTokensDAO = new OAuthServerTokensDAO();
45 $token_row = $oAuthServerTokensDAO->getByTokenAndType($_GET['oauth_token'], 'access');
47 if (!is_array($token_row))
49 echo "error=".urlencode('Invalid OAuth token');
52 else if ($oAuthServerTokensDAO->isTokenExpired($_GET['oauth_token']))
54 echo "error=".urlencode('OAuth token expired');
58 $_user_id = $token_row[0]['user_id'];
62 require(TR_INCLUDE_PATH.'vitals.inc.php');
64 require_once(TR_INCLUDE_PATH.'classes/Utility.class.php');
65 require_once(TR_INCLUDE_PATH.'../home/classes/ContentUtility.class.php');
66 require_once(TR_INCLUDE_PATH.'classes/DAO/UsersDAO.class.php');
67 require_once(TR_INCLUDE_PATH.'classes/DAO/CoursesDAO.class.php');
68 require_once(TR_INCLUDE_PATH.'classes/DAO/UserCoursesDAO.class.php');
69 require_once(TR_INCLUDE_PATH.'classes/DAO/ContentDAO.class.php');
70 require_once(TR_INCLUDE_PATH.'classes/DAO/TestsQuestionsAssocDAO.class.php');
71 require_once(TR_INCLUDE_PATH.'classes/DAO/ContentTestsAssocDAO.class.php');
72 require_once(TR_INCLUDE_PATH.'classes/FileUtility.class.php'); /* for clr_dir() and preImportCallBack and dirsize() */
74 require_once(TR_INCLUDE_PATH.'lib/pclzip.lib.php');
75 require_once(TR_INCLUDE_PATH.'lib/pclzip_callback.lib.php');
76 require_once(TR_INCLUDE_PATH.'lib/qti.inc.php');
77 //require(TR_INCLUDE_PATH.'classes/QTI/QTIParser.class.php');
78 require_once(TR_INCLUDE_PATH.'classes/QTI/QTIImport.class.php');
79 require_once(TR_INCLUDE_PATH.'classes/A4a/A4aImport.class.php');
80 require(TR_INCLUDE_PATH.'../home/ims/ns.inc.php'); //namespace, no longer needs, delete it after it's stable.
81 require_once(TR_INCLUDE_PATH.'classes/Weblinks/WeblinksParser.class.php');
82 require(TR_INCLUDE_PATH.'classes/DiscussionTools/DiscussionToolsParser.class.php');
83 require(TR_INCLUDE_PATH.'classes/DiscussionTools/DiscussionToolsImport.class.php');
85 // make sure the user has author privilege
86 Utility::authenticate(TR_PRIV_ISAUTHOR);
88 /* to avoid timing out on large files */
90 $_SESSION['done'] = 1;
92 $html_head_tags = array("style", "script", "link");
94 $package_base_path = '';
95 $package_real_base_path = ''; //the path to save the contents
96 $all_package_base_path = array();
98 $element_path = array();
99 $imported_glossary = array();
100 $character_data = '';
104 $skip_ims_validation = false;
105 $added_dt = array(); //the mapping of discussion tools that are added
106 $avail_dt = array(); //list of discussion tools that have not been handled
108 function check_available_size($course_id)
110 global $coursesDAO, $MaxCourseSize, $import_path, $msg, $oauth_import;
112 $q_row = $coursesDAO->get($course_id);
114 //$sql = "SELECT max_quota FROM ".TABLE_PREFIX."courses WHERE course_id=$_SESSION[course_id]";
115 //$result = mysql_query($sql, $db);
116 //$q_row = mysql_fetch_assoc($result);
118 if ($q_row['max_quota'] == TR_COURSESIZE_UNLIMITED) return;
119 else $zip_size_limit = $MaxCourseSize;
121 $totalBytes = FileUtility::dirsize($import_path);
123 $total_after = $zip_size_limit - $totalBytes;
125 if (is_dir(TR_CONTENT_DIR . $course_id.'/'))
127 $course_total = FileUtility::dirsize(TR_CONTENT_DIR . $course_id.'/');
128 $total_after -= $course_total;
131 if ($total_after < 0) {
132 /* remove the content dir, since there's no space for it */
133 $errors = array('NO_CONTENT_SPACE', number_format(-1*($total_after/TR_KBYTE_SIZE), 2 ) );
134 $msg->addError($errors);
136 // Clean up import path and inserted course row
137 FileUtility::clr_dir($import_path);
138 $coursesDAO->Delete($course_id);
140 if (isset($_GET['tile'])) {
141 header('Location: '.$_base_path.'tools/tile/index.php');
143 else if ($oauth_import) {
144 echo "error=".urlencode('No space for the content.');
147 header('Location: '.$_SERVER['HTTP_REFERER']);
154 * return the error messages represented by the given array
156 * @ref http://ca3.php.net/manual/en/domdocument.schemavalidate.php
158 function libxml_display_error($error)
161 switch ($error->level) {
162 case LIBXML_ERR_WARNING:
163 $return .= "<b>Warning $error->code</b>: ";
165 case LIBXML_ERR_ERROR:
166 $return .= "<b>Error $error->code</b>: ";
168 case LIBXML_ERR_FATAL:
169 $return .= "<b>Fatal Error $error->code</b>: ";
172 $return .= trim($error->message);
174 $return .= " in <b>$error->file</b>";
176 $return .= " on line <b>$error->line</b>\n";
182 * Validate all the XML in the package, including checking XSDs, missing data.
183 * @param string the path of the directory that contains all the package files
184 * @return boolean true if every file exists in the manifest, false if any is missing.
186 function checkResources($import_path){
187 global $items, $msg, $skip_ims_validation, $avail_dt;
189 if (!is_dir($import_path)){
193 //if the package has access for all content, skip validation for now.
194 //todo: import the XSD into our validator
195 if ($skip_ims_validation){
199 //generate a file tree
200 $data = rscandir($import_path);
202 //check if every file is presented in the manifest
203 foreach($data as $filepath){
204 $filepath = substr($filepath, strlen($import_path));
206 //validate xml via its xsd/dtds
207 if (preg_match('/(.*)\.xml/', $filepath)){
208 libxml_use_internal_errors(true);
209 $dom = new DOMDocument();
210 $dom->load(realpath($import_path.$filepath));
211 if (!@$dom->schemaValidate('main.xsd')){
212 $errors = libxml_get_errors();
213 foreach ($errors as $error) {
215 if ($error->level==LIBXML_ERR_WARNING){
218 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', libxml_display_error($error)));
220 libxml_clear_errors();
222 //if this is the manifest file, we do not have to check for its existance.
223 // if (preg_match('/(.*)imsmanifest\.xml/', $filepath)){
229 //Create an array that mimics the structure of the data array, based on the xml items
230 $filearray = array();
231 foreach($items as $name=>$fileinfo){
232 if(isset($fileinfo['file']) && is_array($fileinfo['file']) && !empty($fileinfo['file'])){
233 foreach($fileinfo['file'] as $fn){
234 if (!in_array(realpath($import_path.$fn), $filearray)){
236 if (preg_match('/^http[s]?\:/', $fn) == 0){
237 $filearray[] = realpath($import_path. $fn);
243 //validate the xml by its schema
244 if (preg_match('/imsqti\_(.*)/', $fileinfo['type'])){
245 $qti = new QTIParser($fileinfo['type']);
246 $xml_content = @file_get_contents($import_path . $fileinfo['href']);
247 $qti->parse($xml_content); //will add error to $msg if failed
250 //add all dependent discussion tools to a list
251 if(isset($fileinfo['dependency']) && !empty($fileinfo['dependency'])){
252 $avail_dt = array_merge($avail_dt, $fileinfo['dependency']);
256 //check if all files in the xml is presented in the archieve
257 $result = array_diff($filearray, $data);
258 //using sizeof because array_diff only
259 //returns an array containing all the entries from array1 that are not present in any of the
261 //Using sizeof make sure it's not a subset of array2.
262 //-1 on data because it always contain the imsmanifest.xml file
263 if (!$skip_ims_validation){
264 if (!empty($result) || sizeof($data)-1>sizeof($filearray)){
265 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('ims_missing_references')));
272 * @example rscandir(dirname(__FILE__).'/'));
273 * @param string $base
278 function rscandir($base='', &$data=array()) {
279 $array = array_diff(scandir($base), array('.', '..')); # remove ' and .. from the array */
280 foreach($array as $value) : /* loop through the array at the level of the supplied $base */
282 if (is_dir($base.$value)) : /* if this is a directory */
283 // don't save the directory name
284 // $data[] = $base.$value.'/'; /* add it to the $data array */
285 $data = rscandir($base.$value.'/', $data); /* then make a recursive call with the
286 current $value as the $base supplying the $data array to carry into the recursion */
288 elseif (is_file($base.$value)) : /* else if the current $value is a file */
289 $data[] = realpath($base.$value); /* just add the current $value to the $data array */
294 return $data; // return the $data array
299 * Function to restructure the $items. So that old import will merge the top page into its children, and
300 * create a new folder on top of it
302 function rehash($items){
304 $parent_page_maps = array(); //old=>new
305 $temp_popped_items = array();
306 $rehashed_items = array(); //the reconstructed array
307 foreach($items as $id => $content){
308 $parent_obj = $items[$content['parent_content_id']];
309 $rehashed_items[$id] = $content; //copy
310 //first check if this is the top folder of the archieve, we don't want the top folder, remove it.
311 /* if (isset($content['parent_content_id']) && !isset($parent_obj) && !isset($content['type'])){
312 //if we can get into here, it means the parent_content_id of this is empty
313 //implying this is the first folder.
314 //note: it checks content[type] cause it could be a webcontent. In that case,
315 // we do want to keep it.
316 debug($content, 'hit');
317 unset($rehashed_items[$id]);
320 //then check if there exists a mapping for this item, if so, simply replace is and next.
322 */ if (isset($parent_page_maps[$content['parent_content_id']])){
323 $rehashed_items [$id]['parent_content_id'] = $parent_page_maps[$content['parent_content_id']];
324 $rehashed_items [$id]['ordering']++;
326 //If its parent page is a top page and have an identiferref
327 elseif (isset($parent_obj) && isset($parent_obj['href'])){
328 if (!isset($parent_obj['href'])){
329 //check if this top page is already a folder, if so, next.
332 //else, make its parent page to a folder
333 $new_item['title'] = $parent_obj['title'];
334 //check if this parent has been modified, if so, chnage it
335 if (isset($parent_page_maps[$parent_obj['parent_content_id']])){
336 $new_item['parent_content_id'] = $parent_page_maps[$parent_obj['parent_content_id']];
338 $new_item['parent_content_id'] = $parent_obj['parent_content_id'];
340 //all ordering needs to be +1 because we are creating a new folder on top of
341 //everything, except the first page.
342 $new_item['ordering'] = $parent_obj['ordering'];
343 if ($new_item['parent_content_id']!='0'){
344 $new_item['ordering']++;
347 //assign this new parent folder to the pending items array
348 $new_item_name = $content['parent_content_id'].'_FOLDER';
349 //a not so brilliant way to append the folder in its appropriate position
350 $reordered_hashed_items = array(); //use to store the new rehashed item with the correct item order
351 foreach($rehashed_items as $rh_id=>$rh_content){
352 if ($rh_id == $content['parent_content_id']){
353 //add the folder in before the parent subpage.
354 $reordered_hashed_items[$new_item_name] = $new_item;
356 $reordered_hashed_items[$rh_id] = $rh_content; //clone
358 $rehashed_items = $reordered_hashed_items; //replace it back
359 unset($reordered_hashed_items);
360 $parent_page_maps[$content['parent_content_id']] = $new_item_name; //save this page on the hash map
362 //reconstruct the parent
363 $rehashed_items[$content['parent_content_id']]['parent_content_id'] = $parent_page_maps[$content['parent_content_id']];
364 $rehashed_items[$content['parent_content_id']]['ordering'] = 0; //always the first one.
367 $rehashed_items[$id]['parent_content_id'] = $parent_page_maps[$content['parent_content_id']];
368 $rehashed_items[$id]['ordering']++;
372 return $rehashed_items;
376 * Take out the common path within all $items['new_path'].
377 * This allows import/export repeatedly without duplicating its path
378 * @param array contains the breakdown of all resources in the XML
380 function removeCommonPath($items){
382 $quit = false; //a flag that is set if it's not the first time being run.
384 foreach($items as $index=>$item){
385 if (isset($item['new_path']) && $item['new_path']!=''){
386 $path = $item['new_path'];
392 //check if this is a XML file; if so, skip through,
393 //cause XML most likely isn't a content resource.
394 $ext = substr($item['href'], (strrpos($item['href'], '.')+1));
399 //if common path is empty, assign the first path to it.
400 if ($common_path=='' && $quit==false){
401 $common_path = $path;
402 $quit = true; //the next time common_path is empty, quit;
405 //we use '/' here instead of DIRECTORY_SEPARATOR because php would
406 //actually use '\' and return the whole string.
407 $common_array = explode('/', $common_path);
408 $path_array = explode('/', $path);
409 $intersect_array = array_intersect($common_array, $path_array);
410 $common_path = implode('/', $intersect_array);
417 * This function will take the test accessment XML and add these to the database.
418 * @param string The path of the XML, without the import_path.
419 * @param mixed An item singleton. Contains the info of this item, namely, the accessment details.
420 * The item must be an object created by the ims class.
421 * @param string the import path
422 * @return mixed An Array that contains all the question IDs that have been imported.
424 function addQuestions($xml, $item, $import_path){
426 $qti_import = new QTIImport($import_path);
427 $tests_xml = $import_path.$xml;
429 //Mimic the array for now.
430 $test_attributes['resource']['href'] = $item['href'];
431 $test_attributes['resource']['type'] = preg_match('/imsqti_xmlv1p2/', $item['type'])==1?'imsqti_xmlv1p2':'imsqti_xmlv1p1';
432 $test_attributes['resource']['file'] = $item['file'];
434 //Get the XML file out and start importing them into our database.
435 //TODO: See question_import.php 287-289.
436 $qids = $qti_import->importQuestions($test_attributes);
437 $test_title = $qti_import->title;
443 /* called at the start of en element */
444 /* builds the $path array which is the path from the root to the current element */
445 function startElement($parser, $name, $attrs) {
446 global $items, $path, $package_base_path, $all_package_base_path, $package_real_base_path;
447 global $element_path, $import_path, $skip_ims_validation;
448 global $xml_base_path, $test_message, $content_type;
449 global $current_identifier, $msg, $ns, $ns_cp;
450 global $course_primary_lang;
452 //check if the xml is valid
454 if(isset($attrs['xsi:schemaLocation']) && $name == 'manifest'){
455 //run the loop and check it thru the ns.inc.php
456 } elseif ($name == 'manifest' && !isset($attrs['xsi:schemaLocation'])) {
457 //$msg->addError('MANIFEST_NOT_WELLFORM: NO NAMESPACE');
458 $msg->addError('IMPORT_CARTRIDGE_FAILED');
462 //error if the tag names are wrong
463 if (preg_match('/^xsi\:/', $name) >= 1){
464 //$msg->addError('MANIFEST_NOT_WELLFORM');
465 $msg->addError('IMPORT_CARTRIDGE_FAILED');
469 // get language from CONTENT PACKAGE
470 if (substr($element_path[count($element_path)-1], -6) == ':title' && substr($name, -11) == ':langstring') {
471 $course_primary_lang = trim($attrs['xml:lang']);
474 //validate namespaces
475 if(!$skip_ims_validation && isset($attrs['xsi:schemaLocation']) && $name=='manifest'){
476 $schema_location = array();
477 $split_location = preg_split('/[\r\n\s]+/', trim($attrs['xsi:schemaLocation']));
479 //check if the namespace is actually right, have an array or some sort in IMS class
480 if(sizeof($split_location)%2==1){
481 //schema is not in the form of "The first URI reference in each pair is a namespace name,
482 //and the second is the location of a schema that describes that namespace."
483 //$msg->addError('MANIFEST_NOT_WELLFORM');
484 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('schema_error')));
487 //turn the xsi:schemaLocation URI into a schema that describe namespace.
489 //http://msdn.microsoft.com/en-us/library/ms256100(VS.85).aspx
490 //http://www.w3.org/TR/xmlschema-1/
491 for($i=0; $i < sizeof($split_location);$i=$i+2){
493 if (isset($ns[$split_location[$i]]) && $ns[$split_location[$i]] != $split_location[$i+1]){
494 //$msg->addError('MANIFEST_NOT_WELLFORM: SCHEMA');
495 $msg->addError('IMPORT_CARTRIDGE_FAILED');
498 //if the key of the namespace is not defined. Throw error.
499 if(!isset($ns[$split_location[$i]]) && !isset($ns_cp[$split_location[$i]])){
500 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('schema_error')));
507 if ($name == 'manifest' && isset($attrs['xml:base']) && $attrs['xml:base']) {
508 $xml_base_path = $attrs['xml:base'];
509 } else if ($name == 'file') {
510 // check if it misses file references
511 if(!$skip_ims_validation && (!isset($attrs['href']) || $attrs['href']=='')){
512 //$msg->addError('MANIFEST_NOT_WELLFORM');
513 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('ims_missing_references')));
516 // special case for webCT content packages that don't specify the `href` attribute
517 // with the `<resource>` element.
518 // we take the `href` from the first `<file>` element.
519 if (isset($items[$current_identifier]) && ($items[$current_identifier]['href'] == '')) {
520 $attrs['href'] = urldecode($attrs['href']);
521 $items[$current_identifier]['href'] = $attrs['href'];
524 $temp_path = pathinfo($attrs['href']);
525 $temp_path = explode('/', $temp_path['dirname']);
526 if (empty($package_base_path)){
527 $package_base_path = $temp_path;
529 if ($all_package_base_path!='' && empty($all_package_base_path)){
530 $all_package_base_path = $temp_path;
532 $package_base_path = array_intersect_assoc($package_base_path, $temp_path);
534 //calculate the depths of relative paths
535 if ($all_package_base_path!=''){
536 $no_relative_temp_path = $temp_path;
537 foreach($no_relative_temp_path as $path_node){
538 if ($path_node=='..'){
539 array_pop($no_relative_temp_path);
540 array_pop($no_relative_temp_path); //not a typo, have to pop twice, both itself('..'), and the one before.
543 $all_package_base_path = array_intersect_assoc($all_package_base_path, $no_relative_temp_path);
544 if (empty($all_package_base_path)){
545 $all_package_base_path = ''; //unset it, there is no intersection.
549 //save the actual content base path
550 if (in_array('..', $temp_path)){
551 $sizeofrp = array_count_values($temp_path);
554 //for IMSCC, assume that all resources lies in the same folder, except styles.css
555 if ($items[$current_identifier]['type']=='webcontent' || $items[$current_identifier]['type']=='imsdt_xmlv1p0'){
556 //find the intersection of each item's related files, then that intersection is the content_path
557 if (isset($items[$current_identifier]['file'])){
558 foreach ($items[$current_identifier]['file'] as $resource_path){
559 $temp_path = pathinfo($resource_path);
560 $temp_path = explode('/', $temp_path['dirname']);
561 $package_base_path = array_intersect_assoc($package_base_path, $temp_path);
567 if($sizeofrp['..'] > 0 && !empty($all_package_base_path)){
568 for ($i=0; $i<$sizeofrp['..']; $i++){
569 array_pop($all_package_base_path);
572 if (count($package_base_path) > 0) {
573 $items[$current_identifier]['new_path'] = implode('/', $package_base_path);
576 * @harris, reworked the package_base_path
577 if ($package_base_path=="") {
578 $package_base_path = $temp_path;
580 elseif (is_array($package_base_path) && $content_type != 'IMS Common Cartridge') {
581 //if this is a content package, we want only intersection
582 $package_base_path = array_intersect($package_base_path, $temp_path);
583 $temp_path = $package_base_path;
585 //added these 2 lines in so that pictures would load. making the elseif above redundant.
586 //if there is a bug for pictures not load, then it's the next 2 lines.
587 $package_base_path = array_intersect($package_base_path, $temp_path);
588 $temp_path = $package_base_path;
590 $items[$current_identifier]['new_path'] = implode('/', $temp_path);
592 if (isset($_POST['allow_test_import']) && isset($items[$current_identifier])
593 && preg_match('/((.*)\/)*tests\_[0-9]+\.xml$/', $attrs['href'])) {
594 $items[$current_identifier]['tests'][] = $attrs['href'];
596 if (isset($_POST['allow_a4a_import']) && isset($items[$current_identifier])) {
597 $items[$current_identifier]['a4a_import_enabled'] = true;
599 } else if (($name == 'item') && ($attrs['identifierref'] != '')) {
600 $path[] = $attrs['identifierref'];
601 } else if (($name == 'item') && ($attrs['identifier'])) {
602 $path[] = $attrs['identifier'];
603 // } else if (($name == 'resource') && is_array($items[$attrs['identifier']])) {
604 } else if (($name == 'resource')) {
605 $current_identifier = $attrs['identifier'];
606 $items[$current_identifier]['type'] = $attrs['type'];
607 if ($attrs['href']) {
608 $attrs['href'] = urldecode($attrs['href']);
610 $items[$attrs['identifier']]['href'] = $attrs['href'];
612 // href points to a remote url
613 if (preg_match('/^http.*:\/\//', trim($attrs['href'])))
614 $items[$attrs['identifier']]['new_path'] = '';
615 else // href points to local file
617 $temp_path = pathinfo($attrs['href']);
618 $temp_path = explode('/', $temp_path['dirname']);
619 // if (empty($package_base_path)) {
620 $package_base_path = $temp_path;
623 // $package_base_path = array_intersect($package_base_path, $temp_path);
625 $items[$attrs['identifier']]['new_path'] = implode('/', $temp_path);
629 //if test custom message has not been saved
630 // if (!isset($items[$current_identifier]['test_message'])){
631 // $items[$current_identifier]['test_message'] = $test_message;
633 } else if ($name=='dependency' && $attrs['identifierref']!='') {
634 //if there is a dependency, attach it to the item array['file']
635 $items[$current_identifier]['dependency'][] = $attrs['identifierref'];
637 if (($name == 'item') && ($attrs['parameters'] != '')) {
638 $items[$attrs['identifierref']]['test_message'] = $attrs['parameters'];
641 if(!isset($items[$current_identifier]) && $attrs['href']!=''){
642 $items[$current_identifier]['href'] = $attrs['href'];
644 if (substr($attrs['href'], 0, 7) == 'http://' || substr($attrs['href'], 0, 8) == 'https://' || file_exists($import_path.$attrs['href']) || $skip_ims_validation){
645 $items[$current_identifier]['file'][] = $attrs['href'];
647 //$msg->addError('');
648 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT(array('ims_files_missing', $attrs['href']))));
651 if ($name=='cc:authorizations'){
652 //don't have authorization setup.
653 //$msg->addError('');
654 $msg->addError('IMS_AUTHORIZATION_NOT_SUPPORT');
656 array_push($element_path, $name);
659 /* called when an element ends */
660 /* removed the current element from the $path */
661 function endElement($parser, $name) {
662 global $path, $element_path, $my_data, $items, $oauth_import;
663 global $current_identifier, $skip_ims_validation;
664 global $msg, $content_type;
665 global $course_title, $course_description, $course_primary_lang; // added by Cindy Li
666 static $resource_num = 0;
668 if ($name == 'item') {
672 // added by Cindy Li on Jan 10, 2010
673 // Extract course title, description and primary language for a newly-created course
674 if (substr($element_path[count($element_path)-2], -6) == ':title') {
675 if (substr($element_path[count($element_path)-1], -7) == ':string' ||
676 substr($element_path[count($element_path)-1], -11) == ':langstring') {
677 $course_title = trim($my_data);
681 if (substr($element_path[count($element_path)-2], -12) == ':description') {
682 if (substr($element_path[count($element_path)-1], -7) == ':string' ||
683 substr($element_path[count($element_path)-1], -11) == ':langstring') {
684 $course_description = trim($my_data);
688 // get language from COMMON CARTRIDGE
689 if (substr($element_path[count($element_path)-1], -9) == ':language') {
690 $course_primary_lang = trim($my_data);
692 // end of added by Cindy Li on Jan 10, 2010
694 //check if this is a test import
695 if ($name == 'schema'){
696 if (trim($my_data)=='IMS Question and Test Interoperability'){
698 echo "error=".urlencode('A test import');
700 $msg->addError('IMPORT_FAILED');
703 $content_type = trim($my_data);
707 if ($current_identifier != ''){
708 $my_data = trim($my_data);
709 $last_file_name = $items[$current_identifier]['file'][(sizeof($items[$current_identifier]['file']))-1];
711 if ($name=='originalAccessMode'){
712 if (in_array('accessModeStatement', $element_path)){
713 $items[$current_identifier]['a4a'][$last_file_name][$resource_num]['access_stmt_originalAccessMode'][] = $my_data;
714 } elseif (in_array('adaptationStatement', $element_path)){
715 $items[$current_identifier]['a4a'][$last_file_name][$resource_num]['adapt_stmt_originalAccessMode'][] = $my_data;
717 } elseif (($name=='language') && in_array('accessModeStatement', $element_path)){
718 $items[$current_identifier]['a4a'][$last_file_name][$resource_num]['language'][] = $my_data;
719 } elseif ($name=='hasAdaptation') {
720 $items[$current_identifier]['a4a'][$last_file_name][$resource_num]['hasAdaptation'][] = $my_data;
721 } elseif ($name=='isAdaptationOf'){
722 $items[$current_identifier]['a4a'][$last_file_name][$resource_num]['isAdaptationOf'][] = $my_data;
723 } elseif ($name=='accessForAllResource'){
724 /* the head node of accessForAll Metadata, if this exists in the manifest. Skip XSD validation,
725 * because A4a doesn't have a xsd yet. Our access for all is based on ISO which will not pass
726 * the current IMS validation.
727 * Also, since ATutor is the only one (as of Oct 21, 2009) that exports IMS with access for all
728 * content, we can almost assume that any ims access for all content is by us, and is valid.
730 $skip_ims_validation = true;
732 } elseif($name=='file'){
733 $resource_num = 0; //reset resournce number to 0 when the file tags ends
737 if ($element_path === array('manifest', 'metadata', 'imsmd:lom', 'imsmd:general', 'imsmd:title', 'imsmd:langstring')) {
738 global $package_base_name;
739 $package_base_name = trim($my_data);
742 array_pop($element_path);
746 /* called when there is character data within elements */
747 /* constructs the $items array using the last entry in $path as the parent element */
748 function characterData($parser, $data){
749 global $path, $items, $order, $my_data, $element_path;
750 global $current_identifier;
752 $str_trimmed_data = trim($data);
754 if (!empty($str_trimmed_data)) {
755 $size = count($path);
757 $current_item_id = $path[$size-1];
759 $parent_item_id = $path[$size-2];
764 if (isset($items[$current_item_id]['parent_content_id']) && is_array($items[$current_item_id])) {
766 /* this item already exists, append the title */
767 /* this fixes {\n, \t, `, &} characters in elements */
769 /* horible kludge to fix the <ns2:objectiveDesc xmlns:ns2="http://www.utoronto.ca/atrc/tile/xsd/tile_objective"> */
771 if (in_array('accessForAllResource', $element_path)){
773 } elseif ($element_path[count($element_path)-1] != 'ns1:objectiveDesc') {
774 $items[$current_item_id]['title'] .= $data;
778 $order[$parent_item_id] ++;
779 $item_tmpl = array( 'title' => $data,
780 'parent_content_id' => $parent_item_id,
781 'ordering' => $order[$parent_item_id]-1);
782 //append other array values if it exists
783 if (is_array($items[$current_item_id])){
784 $items[$current_item_id] = array_merge($items[$current_item_id], $item_tmpl);
786 $items[$current_item_id] = $item_tmpl;
795 /* glossary parser: */
796 function glossaryStartElement($parser, $name, $attrs) {
797 global $element_path;
799 array_push($element_path, $name);
802 /* called when an element ends */
803 /* removed the current element from the $path */
804 function glossaryEndElement($parser, $name) {
805 global $element_path, $my_data, $imported_glossary;
806 static $current_term;
808 if ($element_path === array('glossary', 'item', 'term') ||
809 $element_path === array('glossary:glossary', 'item', 'term')) {
810 $current_term = $my_data;
812 } else if ($element_path === array('glossary', 'item', 'definition') ||
813 $element_path === array('glossary:glossary', 'item', 'definition')) {
814 $imported_glossary[trim($current_term)] = trim($my_data);
817 array_pop($element_path);
821 function glossaryCharacterData($parser, $data){
827 if (!isset($_POST['submit']) && !isset($_POST['cancel']) && !isset($_GET['oauth_token'])) {
828 /* just a catch all */
829 $msg->addError('NO_PRIV');
830 header('Location: '.$_SERVER['HTTP_REFERER']);
832 } else if (isset($_POST['cancel'])) {
833 $msg->addFeedback('IMPORT_CANCELLED');
835 header('Location: '.$_SERVER['HTTP_REFERER']);
839 $cid = intval($_POST['cid']);
841 //If user chooses to ignore validation.
842 if(isset($_POST['ignore_validation']) && $_POST['ignore_validation']==1) {
843 $skip_ims_validation = true;
846 if (isset($_REQUEST['url']) && ($_REQUEST['url'] != 'http://') ) {
847 if ($content = @file_get_contents($_REQUEST['url'])) {
848 $filename = substr(time(), -6). '.zip';
849 $full_filename = TR_CONTENT_DIR . $filename;
851 if (!$fp = fopen($full_filename, 'w+b')) {
852 echo "Cannot open file ($filename)";
856 if (fwrite($fp, $content, strlen($content) ) === FALSE) {
857 echo "Cannot write to file ($filename)";
862 $_FILES['file']['name'] = $filename;
863 $_FILES['file']['tmp_name'] = $full_filename;
864 $_FILES['file']['size'] = strlen($content);
866 $url_parts = pathinfo($_REQUEST['url']);
867 $package_base_name_url = $url_parts['basename'];
869 $ext = pathinfo($_FILES['file']['name']);
870 $ext = $ext['extension'];
873 // debug($ext);debug('not zip');exit;
874 $msg->addError('IMPORTDIR_IMS_NOTVALID');
875 } else if ($_FILES['file']['error'] == 1) {
876 // debug('file error is 1');exit;
877 $errors = array('FILE_MAX_SIZE', ini_get('upload_max_filesize'));
878 $msg->addError($errors);
879 } else if ( !$_FILES['file']['name'] || (!is_uploaded_file($_FILES['file']['tmp_name']) && !$_REQUEST['url'])) {
880 // debug('file not selected');exit;
881 $msg->addError('FILE_NOT_SELECTED');
882 } else if ($_FILES['file']['size'] == 0) {
883 // debug('file size 0');exit;
884 $msg->addError('IMPORTFILE_EMPTY');
887 if ($msg->containsErrors()) {
888 if (isset($_GET['tile'])) {
889 header('Location: '.$_base_path.'tools/tile/index.php');
890 } else if ($oauth_import) {
891 echo "error=".urlencode('Invalid imported file');
893 header('Location: '.$_SERVER['HTTP_REFERER']);
895 if (file_exists($full_filename)) @unlink($full_filename);
899 /* check if ../content/import/ exists */
900 $import_path = TR_CONTENT_DIR . 'import/';
901 $content_path = TR_CONTENT_DIR;
903 if (!is_dir($import_path)) {
904 if (!@mkdir($import_path, 0700)) {
905 $msg->addError('IMPORTDIR_FAILED');
909 if (isset($_POST['_course_id'])) $import_path .= $_POST['_course_id'].'/';
910 else $import_path .= Utility::getRandomStr(16).'/';
912 if (is_dir($import_path)) {
913 FileUtility::clr_dir($import_path);
916 if (!@mkdir($import_path, 0700)) {
917 $msg->addError('IMPORTDIR_FAILED');
920 if ($msg->containsErrors()) {
921 if (isset($_GET['tile'])) {
922 header('Location: '.$_base_path.'tools/tile/index.php');
923 } else if ($oauth_import) {
924 echo "error=".urlencode('Cannot create import directory');
926 header('Location: '.$_SERVER['HTTP_REFERER']);
928 if (file_exists($full_filename)) @unlink($full_filename);
932 /* extract the entire archive into TR_COURSE_CONTENT . import/$course using the call back function to filter out php files */
934 $archive = new PclZip($_FILES['file']['tmp_name']);
936 if ($archive->extract( PCLZIP_OPT_PATH, $import_path,
937 PCLZIP_CB_PRE_EXTRACT, 'preImportCallBack') == 0) {
939 echo "error=".urlencode('Cannot unzip the package');
941 $msg->addError('IMPORT_FAILED');
942 echo 'Error : '.$archive->errorInfo(true);
944 FileUtility::clr_dir($import_path);
945 header('Location: '.$_SERVER['HTTP_REFERER']);
946 if (file_exists($full_filename)) @unlink($full_filename);
949 //error_reporting(AT_ERROR_REPORTING);
951 /* initialize DAO objects */
952 $coursesDAO = new CoursesDAO();
953 $contentDAO = new ContentDAO();
954 $testsQuestionsAssocDAO = new TestsQuestionsAssocDAO();
955 $contentTestsAssocDAO = new ContentTestsAssocDAO();
957 // get the course's max_quota
958 if (isset($_POST['_course_id']))
960 check_available_size($_POST['_course_id']);
963 $items = array(); /* all the content pages */
964 $order = array(); /* keeps track of the ordering for each content page */
965 $path = array(); /* the hierarchy path taken in the menu to get to the current item in the manifest */
966 $dependency_files = array(); /* the file path for the dependency files */
969 $items[content_id/resource_id] = array(
971 'real_content_id' // calculated after being inserted
977 $ims_manifest_xml = @file_get_contents($import_path.'imsmanifest.xml');
979 //scan for manifest xml if it's not on the top level.
980 if ($ims_manifest_xml === false){
981 $data = rscandir($import_path);
982 $manifest_array = array();
983 foreach($data as $scanned_file){
984 $scanned_file = realpath($scanned_file);
985 //change the file string to an array
986 $this_file_array = explode(DIRECTORY_SEPARATOR, $scanned_file);
987 if(empty($manifest_array)){
988 $manifest_array = $this_file_array;
990 $manifest_array = array_intersect_assoc($this_file_array, $manifest_array);
992 if (strpos($scanned_file, 'imsmanifest')!==false){
993 $ims_manifest_xml = @file_get_contents($scanned_file);
996 if ($ims_manifest_xml !== false){
997 $import_path = implode(DIRECTORY_SEPARATOR, $manifest_array) . DIRECTORY_SEPARATOR;
1001 //if no imsmanifest.xml found in the entire package, throw error.
1002 if ($ims_manifest_xml === false) {
1003 $msg->addError('NO_IMSMANIFEST');
1005 if (file_exists($import_path . 'atutor_backup_version')) {
1006 $msg->addError('NO_IMS_BACKUP');
1008 FileUtility::clr_dir($import_path);
1010 if (isset($_GET['tile'])) {
1011 header('Location: '.$_base_path.'tools/tile/index.php');
1012 } else if ($oauth_import) {
1013 echo "error=".urlencode('IMS manifest file does not appear to be valid');
1015 header('Location: '.$_SERVER['HTTP_REFERER']);
1017 if (file_exists($full_filename)) @unlink($full_filename);
1021 $xml_parser = xml_parser_create();
1023 xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, false); /* conform to W3C specs */
1024 xml_set_element_handler($xml_parser, 'startElement', 'endElement');
1025 xml_set_character_data_handler($xml_parser, 'characterData');
1027 if (!xml_parse($xml_parser, $ims_manifest_xml, true)) {
1028 die(sprintf("XML error: %s at line %d",
1029 xml_error_string(xml_get_error_code($xml_parser)),
1030 xml_get_current_line_number($xml_parser)));
1032 xml_parser_free($xml_parser);
1033 /* check if the glossary terms exist */
1034 /* Commented by Cindy Li on Jan 7, 2010. Transformable does not include glossary
1035 $glossary_path = '';
1036 if ($content_type == 'IMS Common Cartridge'){
1037 $glossary_path = 'resources/GlossaryItem/';
1038 // $package_base_path = '';
1040 if (file_exists($import_path . $glossary_path . 'glossary.xml')){
1041 $glossary_xml = @file_get_contents($import_path.$glossary_path.'glossary.xml');
1042 $element_path = array();
1043 $xml_parser = xml_parser_create();
1045 // insert the glossary terms into the database (if they're not in there already)
1046 // parse the glossary.xml file and insert the terms
1047 xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, false); // conform to W3C specs
1048 xml_set_element_handler($xml_parser, 'glossaryStartElement', 'glossaryEndElement');
1049 xml_set_character_data_handler($xml_parser, 'glossaryCharacterData');
1051 if (!xml_parse($xml_parser, $glossary_xml, true)) {
1052 die(sprintf("XML error: %s at line %d",
1053 xml_error_string(xml_get_error_code($xml_parser)),
1054 xml_get_current_line_number($xml_parser)));
1056 xml_parser_free($xml_parser);
1057 $contains_glossary_terms = true;
1058 foreach ($imported_glossary as $term => $defn) {
1059 if (!$glossary[$term]) {
1060 $sql = "INSERT INTO ".TABLE_PREFIX."glossary VALUES (NULL, $_SESSION[course_id], '$term', '$defn', 0)";
1061 mysql_query($sql, $db);
1066 // Check if all the files exists in the manifest, iff it's a IMS CC package.
1067 if ($content_type == 'IMS Common Cartridge') {
1068 checkResources($import_path);
1071 // Check if there are any errors during parsing.
1072 if ($msg->containsErrors()) {
1073 if (isset($_GET['tile'])) {
1074 header('Location: '.$_base_path.'tools/tile/index.php');
1075 } else if ($oauth_import) {
1076 echo "error=".urlencode('Error at parsing IMS manifest file');
1078 header('Location: '.$_SERVER['HTTP_REFERER']);
1080 if (file_exists($full_filename)) @unlink($full_filename);
1084 // added by Cindy Li on Jan 10, 2010
1085 // generate a course_id if the import is not into an existing course
1086 if (!isset($_POST['_course_id']))
1088 if (isset($_POST['hide_course']))
1089 $access = 'private';
1093 if (isset($course_primary_lang))
1095 $langcode_and_charset = explode('-', $course_primary_lang);
1096 // $course_primary_lang = Utility::get3LetterLangCode($langcode_and_charset[0]);
1097 $course_primary_lang = $langcode_and_charset[0];
1100 $_course_id = $coursesDAO->Create($_SESSION['user_id'], 'top', $access, $course_title, $course_description,
1101 '', '', '', '', $course_primary_lang, '', '');
1103 check_available_size($_course_id);
1105 // insert author role into table "user_courses"
1106 $userCoursesDAO = new UserCoursesDAO();
1107 $userCoursesDAO->Create($_SESSION['user_id'], $_course_id, TR_USERROLE_AUTHOR, 0);
1109 else $_course_id = $_POST['_course_id'];
1111 // end of added by Cindy Li on Jan 10, 2010
1113 /* generate a unique new package base path based on the package file name and date as needed. */
1114 /* the package name will be the dir where the content for this package will be put, as a result */
1115 /* the 'content_path' field in the content table will be set to this path. */
1116 /* $package_base_name_url comes from the URL file name (NOT the file name of the actual file we open)*/
1117 if (!$package_base_name && $package_base_name_url) {
1118 $package_base_name = substr($package_base_name_url, 0, -4);
1119 } else if (!$package_base_name) {
1120 $package_base_name = substr($_FILES['file']['name'], 0, -4);
1123 $package_base_name = strtolower($package_base_name);
1124 $package_base_name = str_replace(array('\'', '"', ' ', '|', '\\', '/', '<', '>', ':'), '_' , $package_base_name);
1125 $package_base_name = preg_replace("/[^A-Za-z0-9._\-]/", '', $package_base_name);
1127 $course_dir = TR_CONTENT_DIR.$_course_id.'/';
1129 if (is_dir($course_dir.$package_base_name)) {
1130 $package_base_name .= '_'.date('ymdHis');
1133 if ($package_base_path) {
1134 $package_base_path = implode('/', $package_base_path);
1135 } elseif (empty($package_base_path)){
1136 $package_base_path = '';
1139 if ($xml_base_path) {
1140 $package_base_path = $xml_base_path . $package_base_path;
1142 mkdir($import_path.$xml_base_path);
1143 $package_base_name = $xml_base_path . $package_base_name;
1146 /* get the top level content ordering offset */
1147 //$sql = "SELECT MAX(ordering) AS ordering FROM ".TABLE_PREFIX."content WHERE course_id=$_SESSION[course_id] AND content_parent_id=$cid";
1148 //$result = mysql_query($sql, $db);
1149 //$row = mysql_fetch_assoc($result);
1150 //$order_offset = intval($row['ordering']); /* it's nice to have a real number to deal with */
1151 $order_offset = $contentDAO->getMaxOrdering($_course_id, 0);
1152 $lti_offset = array(); //since we don't need lti tools, the ordering needs to be subtracted
1153 //reorder the items stack
1154 $common_path = removeCommonPath($items);
1155 $items = rehash($items);
1156 //debug($items);exit;
1157 foreach ($items as $item_id => $content_info)
1159 //formatting field, default 1
1160 $content_formatting = 1; //CONTENT_TYPE_CONTENT
1162 //don't want to display glossary as a page
1163 if ($content_info['href']== $glossary_path . 'glossary.xml'){
1167 //if discussion tools, add it to the list of unhandled dts
1168 if ($content_info['type']=='imsdt_xmlv1p0'){
1169 //if it will be taken care after (has dependency), then move along.
1170 if (in_array($item_id, $avail_dt)){
1171 $lti_offset[$content_info['parent_content_id']]++;
1176 //handle the special case of cc import, where there is no content association. The resource should
1177 //still be imported.
1178 if(!isset($content_info['parent_content_id'])){
1179 //if this is a question bank
1180 if ($content_info['type']=="imsqti_xmlv1p2/imscc_xmlv1p0/question-bank"){
1181 addQuestions($content_info['href'], $content_info, $import_path);
1185 //if it has no title, most likely it is not a page but just a normal item, skip it
1186 if (!isset($content_info['title'])){
1190 //check dependency immediately, then handles it
1192 if (is_array($content_info['dependency']) && !empty($content_info['dependency'])){
1193 foreach($content_info['dependency'] as $dependency_ref){
1195 /** handled by get_html_head in vitals.inc.php
1196 if (preg_match('/(.*)\.css$/', $items[$dependency_ref]['href'])){
1197 //calculate where this is based on our current base_href.
1198 //assuming the dependency folders are siblings of the item
1199 $head = '<link rel="stylesheet" type="text/css" href="../'.$items[$dependency_ref]['href'].'" />';
1202 //check if this is a discussion tool dependency
1203 if ($items[$dependency_ref]['type']=='imsdt_xmlv1p0'){
1204 $items[$item_id]['forum'][$dependency_ref] = $items[$dependency_ref]['href'];
1206 //check if this is a QTI dependency
1207 if (strpos($items[$dependency_ref]['type'], 'imsqti_xmlv1p2/imscc_xmlv1p0') !== false){
1208 $items[$item_id]['tests'][$dependency_ref] = $items[$dependency_ref]['href'];
1213 //check file array, see if there are css.
1214 //edited nov 26, harris
1215 //removed cuz i added link to the html_tags
1217 if (is_array($content_info['file']) && !empty($content_info['file'])){
1218 foreach($content_info['file'] as $dependency_ref){
1220 if (preg_match('/(.*)\.css$/', $dependency_ref)){
1221 //calculate where this is based on our current base_href.
1222 //assuming the dependency folders are siblings of the item
1223 $head = '<link rel="stylesheet" type="text/css" href="'.$dependency_ref.'" />';
1230 if (preg_match('/^http.*:\/\//', trim($content_info['href'])) )
1232 $content = '<a href="'.$content_info['href'].'" target="_blank">'.$content_info['title'].'</a>';
1236 if ($content_type == 'IMS Common Cartridge'){
1237 //to handle import with purely images but nothing else
1238 //don't need a content base path for it.
1239 $content_new_path = $content_info['new_path'];
1240 $content_info['new_path'] = '';
1242 if (isset($content_info['href'], $xml_base_path)) {
1243 $content_info['href'] = $xml_base_path . $content_info['href'];
1245 if (!isset($content_info['href'])) {
1246 // this item doesn't have an identifierref. so create an empty page.
1247 // what we called a folder according to v1.2 Content Packaging spec
1251 $last_modified = date('Y-m-d H:i:s');
1253 //$file_info = @stat(TR_CONTENT_DIR . 'import/'.$_POST['_course_id'].'/'.$content_info['href']);
1254 $file_info = @stat($import_path.$content_info['href']);
1255 if ($file_info === false) {
1259 //$path_parts = pathinfo(TR_CONTENT_DIR . 'import/'.$_POST['_course_id'].'/'.$content_info['href']);
1260 $path_parts = pathinfo($import_path.$content_info['href']);
1261 $ext = strtolower($path_parts['extension']);
1263 $last_modified = date('Y-m-d H:i:s', $file_info['mtime']);
1265 if (in_array($ext, array('gif', 'jpg', 'bmp', 'png', 'jpeg'))) {
1266 /* this is an image */
1267 $content = '<img src="'.$content_info['href'].'" alt="'.$content_info['title'].'" />';
1268 } else if ($ext == 'swf') {
1270 /* Using default size of 550 x 400 */
1272 $content = '<object type="application/x-shockwave-flash" data="' . $content_info['href'] . '" width="550" height="400"><param name="movie" value="'. $content_info['href'] .'" /></object>';
1274 } else if ($ext == 'mov') {
1275 /* this is a quicktime movie */
1276 /* Using default size of 550 x 400 */
1278 $content = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" width="550" height="400" codebase="http://www.apple.com/qtactivex/qtplugin.cab"><param name="src" value="'. $content_info['href'] . '" /><param name="autoplay" value="true" /><param name="controller" value="true" /><embed src="' . $content_info['href'] .'" width="550" height="400" controller="true" pluginspage="http://www.apple.com/quicktime/download/"></embed></object>';
1281 * commenting this whole chunk out. It's part of my test import codes, not sure why it's here,
1282 * and I don't think it should be here. Remove this whole comment after further testing and confirmation.
1285 //Mimic the array for now.
1286 $test_attributes['resource']['href'] = $test_xml_file;
1287 $test_attributes['resource']['type'] = isset($items[$item_id]['type'])?'imsqti_xmlv1p2':'imsqti_xmlv1p1';
1288 $test_attributes['resource']['file'] = $items[$item_id]['file'];
1289 // $test_attributes['resource']['file'] = array($test_xml_file);
1291 //Get the XML file out and start importing them into our database.
1292 //TODO: See question_import.php 287-289.
1293 $qids = $qti_import->importQuestions($test_attributes);
1296 } else if ($ext == 'mp3') {
1297 $content = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" width="200" height="15" codebase="http://www.apple.com/qtactivex/qtplugin.cab"><param name="src" value="'. $content_info['href'] . '" /><param name="autoplay" value="false" /><embed src="' . $content_info['href'] .'" width="200" height="15" autoplay="false" pluginspage="http://www.apple.com/quicktime/download/"></embed></object>';
1298 } else if (in_array($ext, array('wav', 'au'))) {
1299 $content = '<embed SRC="'.$content_info['href'].'" autostart="false" width="145" height="60"><noembed><bgsound src="'.$content_info['href'].'"></noembed></embed>';
1301 } else if (in_array($ext, array('txt', 'css', 'html', 'htm', 'csv', 'asc', 'tsv', 'xml', 'xsl'))) {
1302 if ($content_type == 'IMS Common Cartridge'){
1303 $content_info['new_path'] = $content_new_path;
1306 /* this is a plain text file */
1307 //$content = file_get_contents(TR_CONTENT_DIR . 'import/'.$_POST['_course_id'].'/'.$content_info['href']);
1308 $content = file_get_contents($import_path.$content_info['href']);
1309 if ($content === false) {
1310 /* if we can't stat() it then we're unlikely to be able to read it */
1311 /* so we'll never get here. */
1315 // get the contents of the 'head' element
1316 $head .= ContentUtility::getHtmlHeadByTag($content, $html_head_tags);
1318 // Specifically handle eXe package
1319 // NOTE: THIS NEEDS WORK! TO FIND A WAY APPLY EXE .CSS FILES ONLY ON COURSE CONTENT PART.
1320 // NOW USE OUR OWN .CSS CREATED SOLELY FOR EXE
1321 $isExeContent = false;
1323 // check xml file in eXe package
1324 if (preg_match("/<organization[ ]*identifier=\"eXe*>*/", $ims_manifest_xml))
1326 $isExeContent = true;
1329 // use ATutor's eXe style sheet as the ones from eXe conflicts with ATutor's style sheets
1332 $head = preg_replace ('/(<style.*>)(.*)(<\/style>)/ms', '\\1@import url(/docs/exestyles.css);\\3', $head);
1335 // end of specifically handle eXe package
1337 $content = ContentUtility::getHtmlBody($content);
1338 if ($contains_glossary_terms)
1340 // replace glossary content package links to real glossary mark-up using [?] [/?]
1341 // refer to bug 3641, edited by Harris
1342 $content = preg_replace('/<a href="([.\w\d\s]+[^"]+)" target="body" class="at-term">([.\w\d\s&;"]+|.*)<\/a>/i', '[?]\\2[/?]', $content);
1345 /* potential security risk? */
1346 if ( strpos($content_info['href'], '..') === false && !preg_match('/((.*)\/)*tests\_[0-9]+\.xml$/', $content_info['href'])) {
1347 // @unlink(TR_CONTENT_DIR . 'import/'.$_POST['_course_id'].'/'.$content_info['href']);
1350 // overwrite content if this is discussion tool.
1351 if ($content_info['type']=='imsdt_xmlv1p0'){
1352 $dt_parser = new DiscussionToolsParser();
1353 $xml_content = @file_get_contents($import_path . $content_info['href']);
1354 $dt_parser->parse($xml_content);
1355 $forum_obj = $dt_parser->getDt();
1356 $content = $forum_obj->getText();
1358 $dt_parser->close();
1361 /* non text file, and can't embed (example: PDF files) */
1362 $content = '<a href="'.$content_info['href'].'">'.$content_info['title'].'</a>';
1365 $content_parent_id = $cid;
1366 if ($content_info['parent_content_id'] !== 0) {
1367 $content_parent_id = $items[$content_info['parent_content_id']]['real_content_id'];
1368 //if it's not there, use $cid
1369 if (!$content_parent_id){
1370 $content_parent_id = $cid;
1375 if ($content_parent_id == $cid) {
1376 $my_offset = $order_offset;
1379 /* replace the old path greatest common denomiator with the new package path. */
1380 /* we don't use str_replace, b/c there's no knowing what the paths may be */
1381 /* we only want to replace the first part of the path.
1383 if(is_array($all_package_base_path)){
1384 $all_package_base_path = implode('/', $all_package_base_path);
1387 if ($common_path != '') {
1388 $content_info['new_path'] = $package_base_name . substr($content_info['new_path'], strlen($common_path));
1390 $content_info['new_path'] = $package_base_name . '/' . $content_info['new_path'];
1394 if ($content_info['type']=='imswl_xmlv1p0'){
1395 $weblinks_parser = new WeblinksParser();
1396 $xml_content = @file_get_contents($import_path . $content_info['href']);
1397 $weblinks_parser->parse($xml_content);
1398 $content_info['title'] = $weblinks_parser->getTitle();
1399 $content = $weblinks_parser->getUrl();
1400 $content_folder_type = CONTENT_TYPE_WEBLINK;
1401 $content_formatting = 2;
1403 // $head = addslashes($head);
1404 // $content_info['title'] = addslashes($content_info['title']);
1405 // $content_info['test_message'] = addslashes($content_info['test_message']);
1407 //if this file is a test_xml, create a blank page instead, for imscc.
1408 if (preg_match('/((.*)\/)*tests\_[0-9]+\.xml$/', $content_info['href'])
1409 || preg_match('/imsqti\_(.*)/', $content_info['type'])) {
1413 // $content = addslashes($content);
1416 //check for content_type
1417 if ($content_formatting!=CONTENT_TYPE_WEBLINK){
1418 $content_folder_type = (!isset($content_info['type'])?CONTENT_TYPE_FOLDER:CONTENT_TYPE_CONTENT);
1421 $items[$item_id]['real_content_id'] = $contentDAO->Create($_course_id, intval($content_parent_id),
1422 ($content_info['ordering'] + $my_offset - $lti_offset[$content_info['parent_content_id']] + 1),
1423 0, $content_formatting, "", $content_info['new_path'], $content_info['title'],
1424 $content, $head, 1, $content_info['test_message'], $content_folder_type);
1426 // $sql= 'INSERT INTO '.TABLE_PREFIX.'content'
1428 // content_parent_id,
1435 // use_customized_head,
1443 // ('.$_SESSION['course_id'].','
1444 // .intval($content_parent_id).','
1445 // .($content_info['ordering'] + $my_offset - $lti_offset[$content_info['parent_content_id']] + 1).','
1446 // .'"'.$last_modified.'",
1448 // .$content_formatting.' ,
1453 // .'"'.$content_info['new_path'].'",'
1454 // .'"'.$content_info['title'].'",'
1455 // .'"'.$content.'",'
1456 // .'"'.$content_info['test_message'].'",'
1457 // .$content_folder_type.')';
1459 // $result = mysql_query($sql, $db) or die(mysql_error());
1461 // /* get the content id and update $items */
1462 // $items[$item_id]['real_content_id'] = mysql_insert_id($db);
1464 /* get the tests associated with this content */
1465 if (!empty($items[$item_id]['tests']) || strpos($items[$item_id]['type'], 'imsqti_xmlv1p2/imscc_xmlv1p0') !== false){
1466 $qti_import = new QTIImport($import_path);
1467 if (isset($items[$item_id]['tests'])){
1468 $loop_var = $items[$item_id]['tests'];
1470 $loop_var = $items[$item_id]['file'];
1473 foreach ($loop_var as $array_id => $test_xml_file){
1474 //check if this item is the qti item object, or it is the content item obj
1475 //switch it to qti obj if it's content item obj
1476 if ($items[$item_id]['type'] == 'webcontent'){
1477 $item_qti = $items[$array_id];
1479 $item_qti = $items[$item_id];
1481 //call subrountine to add the questions.
1482 $qids = addQuestions($test_xml_file, $item_qti, $import_path);
1485 if ($test_title==''){
1486 $test_title = $content_info['title'];
1489 $tid = $qti_import->importTest($test_title);
1491 //associate question and tests
1492 foreach ($qids as $order=>$qid){
1493 if (isset($qti_import->weights[$order])){
1494 $weight = round($qti_import->weights[$order]);
1498 $new_order = $order + 1;
1499 $testsQuestionsAssocDAO->Create($tid, $qid, $weight, $new_order);
1500 // $sql = "INSERT INTO " . TABLE_PREFIX . "tests_questions_assoc" .
1501 // "(test_id, question_id, weight, ordering, required) " .
1502 // "VALUES ($tid, $qid, $weight, $new_order, 0)";
1503 // $result = mysql_query($sql, $db);
1506 //associate content and test
1507 $contentTestsAssocDAO->Create($items[$item_id]['real_content_id'], $tid);
1508 // $sql = 'INSERT INTO ' . TABLE_PREFIX . 'content_tests_assoc' .
1509 // '(content_id, test_id) ' .
1510 // 'VALUES (' . $items[$item_id]['real_content_id'] . ", $tid)";
1511 // $result = mysql_query($sql, $db);
1513 // if (!$msg->containsErrors()) {
1514 // $msg->addFeedback('IMPORT_SUCCEEDED');
1519 /* get the a4a related xml */
1520 if (isset($items[$item_id]['a4a_import_enabled']) && isset($items[$item_id]['a4a']) && !empty($items[$item_id]['a4a'])) {
1521 $a4a_import = new A4aImport($items[$item_id]['real_content_id']);
1522 $a4a_import->setRelativePath($items[$item_id]['new_path']);
1523 $a4a_import->importA4a($items[$item_id]['a4a']);
1526 // get the discussion tools (dependent to content)
1527 if (isset($items[$item_id]['forum']) && !empty($items[$item_id]['forum'])){
1528 foreach($items[$item_id]['forum'] as $forum_ref => $forum_link){
1529 $dt_parser = new DiscussionToolsParser();
1530 $dt_import = new DiscussionToolsImport();
1532 //if this forum has not been added, parse it and add it.
1533 if (!isset($added_dt[$forum_ref])){
1534 $xml_content = @file_get_contents($import_path . $forum_link);
1535 $dt_parser->parse($xml_content);
1536 $forum_obj = $dt_parser->getDt();
1537 $dt_import->import($forum_obj, $items[$item_id]['real_content_id'], $_course_id);
1538 $added_dt[$forum_ref] = $dt_import->getFid();
1540 //associate the fid and content id
1541 // $dt_import->associateForum($items[$item_id]['real_content_id'], $added_dt[$forum_ref]);
1543 } elseif ($items[$item_id]['type']=='imsdt_xmlv1p0'){
1544 //optimize this, repeated codes as above
1545 $dt_parser = new DiscussionToolsParser();
1546 $dt_import = new DiscussionToolsImport();
1547 $xml_content = @file_get_contents($import_path . $content_info['href']);
1548 $dt_parser->parse($xml_content);
1549 $forum_obj = $dt_parser->getDt();
1550 $dt_import->import($forum_obj, $items[$item_id]['real_content_id'], $_course_id);
1551 $added_dt[$item_id] = $dt_import->getFid();
1553 //associate the fid and content id
1554 // $dt_import->associateForum($items[$item_id]['real_content_id'], $added_dt[$item_id]);
1559 if ($package_base_path == '.') {
1560 $package_base_path = '';
1563 // create course directory
1564 if (!is_dir($course_dir)) {
1565 if (!@mkdir($course_dir, 0700)) {
1566 $msg->addError('IMPORTDIR_FAILED');
1570 // loop through the files outside the package folder, and copy them to its relative path
1572 if (is_dir($import_path.'resources')) {
1573 $handler = opendir($import_path.'resources');
1574 while ($file = readdir($handler)){
1575 $filename = $import_path.'resources/'.$file;
1576 if(is_file($filename)){
1577 @rename($filename, $course_dir.$package_base_name.'/'.$file);
1583 //--- harris edit for path thing
1584 $file = TR_CONTENT_DIR . 'import/'.$_course_id.DIRECTORY_SEPARATOR.$common_path;
1585 if (is_dir($file)) {
1586 rename($file, TR_CONTENT_DIR .$_course_id.'/'.$package_base_name);
1589 //takes care of the condition where the whole package doesn't have any contents but question banks
1590 //also is the case of urls
1591 if(is_array($all_package_base_path)){
1592 $all_package_base_path = implode('/', $all_package_base_path);
1594 if(strpos($all_package_base_path, 'http:/')===false){
1595 if (@rename($import_path.$all_package_base_path, TR_CONTENT_DIR .$_course_id.'/'.$package_base_name) === false) {
1596 if (!$msg->containsErrors()) {
1597 if ($oauth_import) {
1598 echo "error=".urlencode('Cannot move lesson directory into content directory');
1600 $msg->addError('IMPORT_FAILED');
1606 //check if there are still resources missing
1607 foreach($items as $idetails){
1608 $temp_path = pathinfo($idetails['href']);
1609 @rename($import_path.$temp_path['dirname'], $course_dir.$package_base_name . '/' . $temp_path['dirname']);
1611 FileUtility::clr_dir($import_path);
1613 if (file_exists($full_filename)) @unlink($full_filename);
1615 if ($oauth_import) {
1616 echo 'course_id='.$_course_id;
1618 if (!$msg->containsErrors()) {
1619 $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1621 header('Location: ../course/index.php?_course_id='.$_course_id);
1625 // if ($_POST['s_cid']){
1626 // if (!$msg->containsErrors()) {
1627 // $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1629 // header('Location: ../../editor/edit_content.php?cid='.intval($_POST['cid']));
1632 // if (!$msg->containsErrors()) {
1633 // $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1635 // if ($_GET['tile']) {
1636 // header('Location: '.TR_BASE_HREF.'tools/tile/index.php');
1638 // header('Location: ../index.php?cid='.intval($_POST['cid']));