docs/home/ims/ims_import.php

   1 <?php
   2 /************************************************************************/
   3 /* AContent                                                             */
   4 /************************************************************************/
   5 /* Copyright (c) 2010                                                   */
   6 /* Inclusive Design Institute                                           */
   7 /*                                                                      */
   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 /************************************************************************/
  12
  13 /** Commented by Cindy Li on Feb 2, 2010
  14  * Modified from ATutor mods/_core/imscp/ims_import.php, SVN revision 9126
  15  */
  16
  17 define('TR_INCLUDE_PATH', '../../include/');
  18
  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 $oauth_import = false;  // whether the import request is from oauth web service
  23
  24 // By default, enable the import of associated tests and a4a objects
  25
  26 if (!isset($_POST['allow_test_import'])) $_POST['allow_test_import'] = 1;
  27 if (!isset($_POST['allow_a4a_import'])) $_POST['allow_a4a_import'] = 1;
  28
  29 // the import request is from oauth web service, find the user id from the given token
  30 if (isset($_GET['oauth_token']))
  31 {
  32         require_once(TR_INCLUDE_PATH.'config.inc.php');
  33         require_once(TR_INCLUDE_PATH.'constants.inc.php');
  34
  35         if ($_GET['oauth_token'] == '')
  36         {
  37                 echo "error=".urlencode('Empty OAuth token');
  38                 exit;
  39         }
  40         else
  41         {
  42                 $oauth_import = true;
  43                 require_once(TR_INCLUDE_PATH.'classes/DAO/OAuthServerTokensDAO.class.php');
  44                 $oAuthServerTokensDAO = new OAuthServerTokensDAO();
  45                 $token_row = $oAuthServerTokensDAO->getByTokenAndType($_GET['oauth_token'], 'access');
  46
  47                 if (!is_array($token_row))
  48                 {
  49                         echo "error=".urlencode('Invalid OAuth token');
  50                         exit;
  51                 }
  52                 else if ($oAuthServerTokensDAO->isTokenExpired($_GET['oauth_token']))
  53                 {
  54                         echo "error=".urlencode('OAuth token expired');
  55                         exit;
  56                 }
  57
  58                 $_user_id = $token_row[0]['user_id'];
  59         }
  60 }
  61
  62 require(TR_INCLUDE_PATH.'vitals.inc.php');
  63
  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() */
  73
  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');
  84
  85 // make sure the user has author privilege
  86 Utility::authenticate(TR_PRIV_ISAUTHOR);
  87
  88 /* to avoid timing out on large files */
  89 @set_time_limit(0);
  90 $_SESSION['done'] = 1;
  91
  92 $html_head_tags = array("style", "script", "link");
  93
  94 $package_base_path = '';
  95 $package_real_base_path = '';   //the path to save the contents
  96 $all_package_base_path = array();
  97 $xml_base_path = '';
  98 $element_path = array();
  99 $imported_glossary = array();
 100 $character_data = '';
 101 $test_message = '';
 102 $test_title = '';
 103 $content_type = '';
 104 $skip_ims_validation = false;
 105 $added_dt = array();    //the mapping of discussion tools that are added
 106 $avail_dt = array();    //list of discussion tools that have not been handled
 107
 108 function check_available_size($course_id)
 109 {
 110         global $coursesDAO, $MaxCourseSize, $import_path, $msg, $oauth_import;
 111
 112         $q_row = $coursesDAO->get($course_id);
 113
 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($result);
 117
 118         if ($q_row['max_quota'] == TR_COURSESIZE_UNLIMITED) return;
 119         else $zip_size_limit = $MaxCourseSize;
 120
 121         $totalBytes   = FileUtility::dirsize($import_path);
 122
 123         $total_after  = $zip_size_limit - $totalBytes;
 124
 125         if (is_dir(TR_CONTENT_DIR . $course_id.'/'))
 126         {
 127                 $course_total = FileUtility::dirsize(TR_CONTENT_DIR . $course_id.'/');
 128                 $total_after  -= $course_total;
 129         }
 130
 131         if ($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);
 135
 136                 // Clean up import path and inserted course row
 137                 FileUtility::clr_dir($import_path);
 138                 $coursesDAO->Delete($course_id);
 139
 140                 if (isset($_GET['tile'])) {
 141                         header('Location: '.$_base_path.'tools/tile/index.php');
 142                 }
 143                 else if ($oauth_import) {
 144                         echo "error=".urlencode('No space for the content.');
 145                 }
 146                 else {
 147                         header('Location: '.$_SERVER['HTTP_REFERER']);
 148                 }
 149                 exit;
 150         }
 151 }
 152
 153 /*
 154  * return the error messages represented by the given array
 155  * @author      Mike A.
 156  * @ref         http://ca3.php.net/manual/en/domdocument.schemavalidate.php
 157  */
 158 function libxml_display_error($error)
 159 {
 160     $return = "<br/>\n";
 161     switch ($error->level) {
 162         case LIBXML_ERR_WARNING:
 163             $return .= "<b>Warning $error->code</b>: ";
 164             break;
 165         case LIBXML_ERR_ERROR:
 166             $return .= "<b>Error $error->code</b>: ";
 167             break;
 168         case LIBXML_ERR_FATAL:
 169             $return .= "<b>Fatal Error $error->code</b>: ";
 170             break;
 171     }
 172     $return .= trim($error->message);
 173     if ($error->file) {
 174         $return .=    " in <b>$error->file</b>";
 175     }
 176     $return .= " on line <b>$error->line</b>\n";
 177
 178     return $return;
 179 }
 180
 181 /**
 182  * Validate all the XML in the package, including checking XSDs, missing data.
 183  * @param       string          the path of the directory that contains all the package files
 184  * @return      boolean         true if every file exists in the manifest, false if any is missing.
 185  */
 186 function checkResources($import_path){
 187         global $items, $msg, $skip_ims_validation, $avail_dt;
 188
 189         if (!is_dir($import_path)){
 190                 return;
 191         }
 192
 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){
 196                 return true;
 197         }
 198
 199         //generate a file tree
 200         $data = rscandir($import_path);
 201
 202         //check if every file is presented in the manifest
 203         foreach($data as $filepath){
 204                 $filepath = substr($filepath, strlen($import_path));
 205
 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 $error) {
 214                                         //suppress warnings
 215                                         if ($error->level==LIBXML_ERR_WARNING){
 216                                                 continue;
 217                                         }
 218                                         $msg->addError(array('IMPORT_CARTRIDGE_FAILED', libxml_display_error($error)));
 219                                 }
 220                                 libxml_clear_errors();
 221                         }
 222                         //if this is the manifest file, we do not have to check for its existance.
 223 //                      if (preg_match('/(.*)imsmanifest\.xml/', $filepath)){
 224 //                              continue;
 225 //                      }
 226                 }
 227         }
 228
 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)){
 235                                         //if url, skip
 236                                         if (preg_match('/^http[s]?\:/', $fn) == 0){
 237                                                 $filearray[] = realpath($import_path. $fn);
 238                                         }
 239                                 }
 240                         }
 241                 }
 242
 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 $msg if failed
 248                 }
 249
 250                 //add all dependent discussion tools to a list
 251                 if(isset($fileinfo['dependency']) && !empty($fileinfo['dependency'])){
 252                         $avail_dt = array_merge($avail_dt, $fileinfo['dependency']);
 253                 }
 254         }
 255
 256         //check if all files in the xml is presented in the archieve
 257         $result = array_diff($filearray, $data);
 258         //using sizeof because array_diff only
 259         //returns an array containing all the entries from array1  that are not present in any of the
 260         //other arrays.
 261         //Using sizeof make sure it's not a subset of array2.
 262         //-1 on data because it always contain the imsmanifest.xml file
 263         if (!$skip_ims_validation){
 264                 if (!empty($result) || sizeof($data)-1>sizeof($filearray)){
 265                         $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('ims_missing_references')));
 266                 }
 267         }
 268         return true;
 269 }
 270
 271 /*
 272  * @example rscandir(dirname(__FILE__).'/'));
 273  * @param string $base
 274  * @param array $omit
 275  * @param array $data
 276  * @return array
 277  */
 278 function rscandir($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 $base */
 281
 282     if (is_dir($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 $data array to carry into the recursion */
 287
 288     elseif (is_file($base.$value)) : /* else if the current $value is a file */
 289       $data[] = realpath($base.$value); /* just add the current $value to the $data array */
 290
 291     endif;
 292
 293   endforeach;
 294   return $data; // return the $data array
 295
 296 }
 297
 298 /**
 299  * Function to restructure the $items.  So that old import will merge the top page into its children, and
 300  * create a new folder on top of it
 301  */
 302 function rehash($items){
 303         global $order;
 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[$id]);
 318             continue;
 319         }
 320                 //then check if there exists a mapping for this item, if so, simply replace is and next.
 321                 else
 322 */              if (isset($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']++;
 325                 }
 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.
 330                                 continue;
 331                         }
 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']];
 337                         } else {
 338                         $new_item['parent_content_id'] = $parent_obj['parent_content_id'];
 339             }
 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']++;
 345                         }
 346
 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;
 355                             }
 356                             $reordered_hashed_items[$rh_id] = $rh_content;  //clone
 357                         }
 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
 361
 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.
 365
 366                         //reconstruct itself
 367                         $rehashed_items[$id]['parent_content_id'] = $parent_page_maps[$content['parent_content_id']];
 368                         $rehashed_items[$id]['ordering']++;
 369
 370                 }
 371         }
 372         return $rehashed_items;
 373 }
 374
 375 /**
 376  * Take out the common path within all $items['new_path'].
 377  * This allows import/export repeatedly without duplicating its path
 378  * @param   array   contains the breakdown of all resources in the XML
 379  */
 380 function removeCommonPath($items){
 381     $common_path;
 382     $quit = false;  //a flag that is set if it's not the first time being run.
 383
 384     foreach($items as $index=>$item){
 385         if (isset($item['new_path']) && $item['new_path']!=''){
 386             $path = $item['new_path'];
 387         } else {
 388             continue;
 389         }
 390
 391         //hack
 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($item['href'], '.')+1));
 395         if($ext=='xml'){
 396             continue;
 397         }
 398
 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;
 403             continue;
 404         }
 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);
 411     }
 412     return $common_path;
 413 }
 414
 415
 416 /**
 417  * This function will take the test accessment XML and add these to the database.
 418  * @param       string  The path of the XML, without the import_path.
 419  * @param       mixed   An item singleton.  Contains the info of this item, namely, the accessment details.
 420  *                                      The item must be an object created by the ims class.
 421  * @param       string  the import path
 422  * @return      mixed   An Array that contains all the question IDs that have been imported.
 423  */
 424  function addQuestions($xml, $item, $import_path){
 425         global $test_title;
 426         $qti_import = new QTIImport($import_path);
 427         $tests_xml = $import_path.$xml;
 428
 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'];
 433
 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;
 438
 439         return $qids;
 440  }
 441
 442
 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 $course_primary_lang;
 451
 452                 //check if the xml is valid
 453 /*
 454                 if(isset($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');
 459                 } else {
 460                         //error
 461                 }
 462                 //error if the tag names are wrong
 463                 if (preg_match('/^xsi\:/', $name) >= 1){
 464                         //$msg->addError('MANIFEST_NOT_WELLFORM');
 465                         $msg->addError('IMPORT_CARTRIDGE_FAILED');
 466                 }
 467 */
 468
 469                 // get language from CONTENT PACKAGE
 470                 if (substr($element_path[count($element_path)-1], -6) == ':title' && substr($name, -11) == ':langstring') {
 471                         $course_primary_lang = trim($attrs['xml:lang']);
 472                 }
 473
 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']));
 478
 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                                 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('schema_error')));
 485                         }
 486
 487                         //turn the xsi:schemaLocation URI into a schema that describe namespace.
 488                         //name = url
 489                         //http://msdn.microsoft.com/en-us/library/ms256100(VS.85).aspx
 490                         //http://www.w3.org/TR/xmlschema-1/
 491                         for($i=0; $i < sizeof($split_location);$i=$i+2){
 492                                 /*
 493                                 if (isset($ns[$split_location[$i]]) && $ns[$split_location[$i]] != $split_location[$i+1]){
 494                                         //$msg->addError('MANIFEST_NOT_WELLFORM: SCHEMA');
 495                                         $msg->addError('IMPORT_CARTRIDGE_FAILED');
 496                                 }
 497                                 */
 498                                 //if the key of the namespace is not defined. Throw error.
 499                                 if(!isset($ns[$split_location[$i]]) && !isset($ns_cp[$split_location[$i]])){
 500                                         $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('schema_error')));
 501                                 }
 502                         }
 503                 } else {
 504                         //throw error
 505                 }
 506
 507                 if ($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                                 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT('ims_missing_references')));
 514                         }
 515
 516                         // special case for webCT content packages that don't specify the `href` attribute
 517                         // with the `<resource>` element.
 518                         // we take the `href` from the first `<file>` element.
 519                         if (isset($items[$current_identifier]) && ($items[$current_identifier]['href'] == '')) {
 520                                 $attrs['href'] = urldecode($attrs['href']);
 521                                 $items[$current_identifier]['href'] = $attrs['href'];
 522                         }
 523
 524                         $temp_path = pathinfo($attrs['href']);
 525                         $temp_path = explode('/', $temp_path['dirname']);
 526                         if (empty($package_base_path)){
 527                             $package_base_path = $temp_path;
 528             }
 529                         if ($all_package_base_path!='' && empty($all_package_base_path)){
 530                                 $all_package_base_path = $temp_path;
 531                         }
 532                         $package_base_path = array_intersect_assoc($package_base_path, $temp_path);
 533
 534                         //calculate the depths of relative paths
 535                         if ($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.
 541                                         }
 542                                 }
 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.
 546                                 }
 547                         }
 548
 549                         //save the actual content base path
 550                         if (in_array('..', $temp_path)){
 551                                 $sizeofrp = array_count_values($temp_path);
 552                         }
 553
 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, $temp_path);
 562                                         }
 563                                 }
 564                         }
 565
 566                         //real content path
 567                         if($sizeofrp['..'] > 0 && !empty($all_package_base_path)){
 568                                 for ($i=0; $i<$sizeofrp['..']; $i++){
 569                                         array_pop($all_package_base_path);
 570                                 }
 571                         }
 572                         if (count($package_base_path) > 0) {
 573                                 $items[$current_identifier]['new_path'] = implode('/', $package_base_path);
 574                         }
 575 /*
 576  * @harris, reworked the package_base_path
 577                                 if ($package_base_path=="") {
 578                                         $package_base_path = $temp_path;
 579                                 }
 580                                 elseif (is_array($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;
 584                                 }
 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;
 589                         }
 590                         $items[$current_identifier]['new_path'] = implode('/', $temp_path);
 591 */
 592                         if (isset($_POST['allow_test_import']) && isset($items[$current_identifier])
 593                                                 && preg_match('/((.*)\/)*tests\_[0-9]+\.xml$/', $attrs['href'])) {
 594                                 $items[$current_identifier]['tests'][] = $attrs['href'];
 595                         }
 596                         if (isset($_POST['allow_a4a_import']) && isset($items[$current_identifier])) {
 597                                 $items[$current_identifier]['a4a_import_enabled'] = true;
 598                         }
 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']);
 609
 610                                 $items[$attrs['identifier']]['href'] = $attrs['href'];
 611
 612                                 // href points to a remote url
 613                                 if (preg_match('/^http.*:\/\//', trim($attrs['href'])))
 614                                         $items[$attrs['identifier']]['new_path'] = '';
 615                                 else // href points to local file
 616                                 {
 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;
 621 //                                      }
 622 //                                      else {
 623 //                                              $package_base_path = array_intersect($package_base_path, $temp_path);
 624 //                                      }
 625                                         $items[$attrs['identifier']]['new_path'] = implode('/', $temp_path);
 626                                 }
 627                         }
 628
 629                         //if test custom message has not been saved
 630 //                      if (!isset($items[$current_identifier]['test_message'])){
 631 //                              $items[$current_identifier]['test_message'] = $test_message;
 632 //                      }
 633                 } else if ($name=='dependency' && $attrs['identifierref']!='') {
 634                         //if there is a dependency, attach it to the item array['file']
 635                         $items[$current_identifier]['dependency'][] = $attrs['identifierref'];
 636                 }
 637                 if (($name == 'item') && ($attrs['parameters'] != '')) {
 638                         $items[$attrs['identifierref']]['test_message'] = $attrs['parameters'];
 639                 }
 640                 if ($name=='file'){
 641                         if(!isset($items[$current_identifier]) && $attrs['href']!=''){
 642                                 $items[$current_identifier]['href']      = $attrs['href'];
 643                         }
 644                         if (substr($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'][] = $attrs['href'];
 646                         } else {
 647                                 //$msg->addError('');
 648                                 $msg->addError(array('IMPORT_CARTRIDGE_FAILED', _AT(array('ims_files_missing', $attrs['href']))));
 649                         }
 650                 }
 651                 if ($name=='cc:authorizations'){
 652                         //don't have authorization setup.
 653                         //$msg->addError('');
 654                         $msg->addError('IMS_AUTHORIZATION_NOT_SUPPORT');
 655                 }
 656                 array_push($element_path, $name);
 657         }
 658
 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 $resource_num = 0;
 667
 668                 if ($name == 'item') {
 669                         array_pop($path);
 670                 }
 671
 672                 // added by Cindy Li on Jan 10, 2010
 673                 // Extract course title, description and primary language for a newly-created course
 674                 if (substr($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);
 678                         }
 679                 }
 680
 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);
 685                         }
 686                 }
 687
 688                 // get language from COMMON CARTRIDGE
 689                 if (substr($element_path[count($element_path)-1], -9) == ':language') {
 690                         $course_primary_lang = trim($my_data);
 691                 }
 692                 // end of added by Cindy Li on Jan 10, 2010
 693
 694                 //check if this is a test import
 695                 if ($name == 'schema'){
 696                         if (trim($my_data)=='IMS Question and Test Interoperability'){
 697                                 if ($oauth_import) {
 698                                         echo "error=".urlencode('A test import');
 699                                 } else {
 700                                         $msg->addError('IMPORT_FAILED');
 701                                 }
 702                         }
 703                         $content_type = trim($my_data);
 704                 }
 705
 706                 //Handles A4a
 707                 if ($current_identifier != ''){
 708                         $my_data = trim($my_data);
 709                         $last_file_name = $items[$current_identifier]['file'][(sizeof($items[$current_identifier]['file']))-1];
 710
 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'][] = $my_data;
 716                                 }
 717                         } elseif (($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.
 729                                  */
 730                                 $skip_ims_validation = true;
 731                                 $resource_num++;
 732                         } elseif($name=='file'){
 733                                 $resource_num = 0;      //reset resournce number to 0 when the file tags ends
 734                         }
 735                 }
 736
 737                 if ($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);
 740                 }
 741
 742                 array_pop($element_path);
 743                 $my_data = '';
 744         }
 745
 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;
 751
 752                 $str_trimmed_data = trim($data);
 753
 754                 if (!empty($str_trimmed_data)) {
 755                         $size = count($path);
 756                         if ($size > 0) {
 757                                 $current_item_id = $path[$size-1];
 758                                 if ($size > 1) {
 759                                         $parent_item_id = $path[$size-2];
 760                                 } else {
 761                                         $parent_item_id = 0;
 762                                 }
 763
 764                                 if (isset($items[$current_item_id]['parent_content_id']) && is_array($items[$current_item_id])) {
 765
 766                                         /* this item already exists, append the title           */
 767                                         /* this fixes {\n, \t, `, &} characters in elements */
 768
 769                                         /* horible kludge to fix the <ns2:objectiveDesc xmlns:ns2="http://www.utoronto.ca/atrc/tile/xsd/tile_objective"> */
 770                                         /* from TILE */
 771                                         if (in_array('accessForAllResource', $element_path)){
 772                                                 //skip this tag
 773                                         } elseif ($element_path[count($element_path)-1] != 'ns1:objectiveDesc') {
 774                                                 $items[$current_item_id]['title'] .= $data;
 775                                         }
 776
 777                                 } else {
 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);
 785                                         } else {
 786                                                 $items[$current_item_id] = $item_tmpl;
 787                                         }
 788                                 }
 789                         }
 790                 }
 791
 792                 $my_data .= $data;
 793         }
 794
 795         /* glossary parser: */
 796         function glossaryStartElement($parser, $name, $attrs) {
 797                 global $element_path;
 798
 799                 array_push($element_path, $name);
 800         }
 801
 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 $current_term;
 807
 808                 if ($element_path === array('glossary', 'item', 'term') ||
 809                         $element_path === array('glossary:glossary', 'item', 'term')) {
 810                         $current_term = $my_data;
 811
 812                 } else if ($element_path === array('glossary', 'item', 'definition') ||
 813                                    $element_path === array('glossary:glossary', 'item', 'definition')) {
 814                         $imported_glossary[trim($current_term)] = trim($my_data);
 815                 }
 816
 817                 array_pop($element_path);
 818                 $my_data = '';
 819         }
 820
 821         function glossaryCharacterData($parser, $data){
 822                 global $my_data;
 823
 824                 $my_data .= $data;
 825         }
 826
 827 if (!isset($_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']);
 831         exit;
 832 } else if (isset($_POST['cancel'])) {
 833         $msg->addFeedback('IMPORT_CANCELLED');
 834
 835         header('Location: '.$_SERVER['HTTP_REFERER']);
 836         exit;
 837 }
 838
 839 $cid = intval($_POST['cid']);
 840
 841 //If user chooses to ignore validation.
 842 if(isset($_POST['ignore_validation']) && $_POST['ignore_validation']==1) {
 843         $skip_ims_validation = true;
 844 }
 845
 846 if (isset($_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 . $filename;
 850
 851                 if (!$fp = fopen($full_filename, 'w+b')) {
 852                         echo "Cannot open file ($filename)";
 853                         exit;
 854                 }
 855
 856                 if (fwrite($fp, $content, strlen($content) ) === FALSE) {
 857                         echo "Cannot write to file ($filename)";
 858                         exit;
 859                 }
 860                 fclose($fp);
 861         }
 862         $_FILES['file']['name']     = $filename;
 863         $_FILES['file']['tmp_name'] = $full_filename;
 864         $_FILES['file']['size']     = strlen($content);
 865         unset($content);
 866         $url_parts = pathinfo($_REQUEST['url']);
 867         $package_base_name_url = $url_parts['basename'];
 868 }
 869 $ext = pathinfo($_FILES['file']['name']);
 870 $ext = $ext['extension'];
 871
 872 if ($ext != 'zip') {
 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');
 885 }
 886 $msg->printAll();
 887 if ($msg->containsErrors()) {
 888         if (isset($_GET['tile'])) {
 889                 header('Location: '.$_base_path.'tools/tile/index.php');
 890         } else if ($oauth_import) {
 891                 echo "error=".urlencode('Invalid imported file');
 892         } else {
 893                 header('Location: '.$_SERVER['HTTP_REFERER']);
 894         }
 895         if (file_exists($full_filename)) @unlink($full_filename);
 896         exit;
 897 }
 898
 899 /* check if ../content/import/ exists */
 900 $import_path = TR_CONTENT_DIR . 'import/';
 901 $content_path = TR_CONTENT_DIR;
 902
 903 if (!is_dir($import_path)) {
 904         if (!@mkdir($import_path, 0700)) {
 905                 $msg->addError('IMPORTDIR_FAILED');
 906         }
 907 }
 908
 909 if (isset($_POST['_course_id'])) $import_path .= $_POST['_course_id'].'/';
 910 else $import_path .= Utility::getRandomStr(16).'/';
 911
 912 if (is_dir($import_path)) {
 913         FileUtility::clr_dir($import_path);
 914 }
 915
 916 if (!@mkdir($import_path, 0700)) {
 917         $msg->addError('IMPORTDIR_FAILED');
 918 }
 919
 920 if ($msg->containsErrors()) {
 921         if (isset($_GET['tile'])) {
 922                 header('Location: '.$_base_path.'tools/tile/index.php');
 923         } else if ($oauth_import) {
 924                 echo "error=".urlencode('Cannot create import directory');
 925         } else {
 926                 header('Location: '.$_SERVER['HTTP_REFERER']);
 927         }
 928         if (file_exists($full_filename)) @unlink($full_filename);
 929         exit;
 930 }
 931
 932 /* extract the entire archive into TR_COURSE_CONTENT . import/$course using the call back function to filter out php files */
 933 error_reporting(0);
 934 $archive = new PclZip($_FILES['file']['tmp_name']);
 935
 936 if ($archive->extract(  PCLZIP_OPT_PATH,        $import_path,
 937                                                 PCLZIP_CB_PRE_EXTRACT,  'preImportCallBack') == 0) {
 938         if ($oauth_import) {
 939                 echo "error=".urlencode('Cannot unzip the package');
 940         } else {
 941                 $msg->addError('IMPORT_FAILED');
 942                 echo 'Error : '.$archive->errorInfo(true);
 943         }
 944         FileUtility::clr_dir($import_path);
 945         header('Location: '.$_SERVER['HTTP_REFERER']);
 946         if (file_exists($full_filename)) @unlink($full_filename);
 947         exit;
 948 }
 949 //error_reporting(AT_ERROR_REPORTING);
 950
 951 /* initialize DAO objects */
 952 $coursesDAO = new CoursesDAO();
 953 $contentDAO = new ContentDAO();
 954 $testsQuestionsAssocDAO = new TestsQuestionsAssocDAO();
 955 $contentTestsAssocDAO = new ContentTestsAssocDAO();
 956
 957 // get the course's max_quota
 958 if (isset($_POST['_course_id']))
 959 {
 960         check_available_size($_POST['_course_id']);
 961 }
 962
 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 */
 967
 968 /*
 969 $items[content_id/resource_id] = array(
 970                                                                         'title'
 971                                                                         'real_content_id' // calculated after being inserted
 972                                                                         'parent_content_id'
 973                                                                         'href'
 974                                                                         'ordering'
 975                                                                         );
 976 */
 977 $ims_manifest_xml = @file_get_contents($import_path.'imsmanifest.xml');
 978
 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;
 989                 }
 990                 $manifest_array = array_intersect_assoc($this_file_array, $manifest_array);
 991
 992                 if (strpos($scanned_file, 'imsmanifest')!==false){
 993                         $ims_manifest_xml = @file_get_contents($scanned_file);
 994                 }
 995         }
 996         if ($ims_manifest_xml !== false){
 997                 $import_path = implode(DIRECTORY_SEPARATOR, $manifest_array) . DIRECTORY_SEPARATOR;
 998         }
 999 }
1000
1001 //if no imsmanifest.xml found in the entire package, throw error.
1002 if ($ims_manifest_xml === false) {
1003         $msg->addError('NO_IMSMANIFEST');
1004
1005         if (file_exists($import_path . 'atutor_backup_version')) {
1006                 $msg->addError('NO_IMS_BACKUP');
1007         }
1008         FileUtility::clr_dir($import_path);
1009
1010         if (isset($_GET['tile'])) {
1011                 header('Location: '.$_base_path.'tools/tile/index.php');
1012         } else if ($oauth_import) {
1013                 echo "error=".urlencode('IMS manifest file does not appear to be valid');
1014         } else {
1015                 header('Location: '.$_SERVER['HTTP_REFERER']);
1016         }
1017         if (file_exists($full_filename)) @unlink($full_filename);
1018         exit;
1019 }
1020
1021 $xml_parser = xml_parser_create();
1022
1023 xml_parser_set_option($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');
1026
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($xml_parser)));
1031 }
1032 xml_parser_free($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 //      $package_base_path = '';
1039 }
1040 if (file_exists($import_path . $glossary_path . 'glossary.xml')){
1041         $glossary_xml = @file_get_contents($import_path.$glossary_path.'glossary.xml');
1042         $element_path = array();
1043         $xml_parser = xml_parser_create();
1044
1045         // insert the glossary terms into the database (if they're not in there already)
1046         // parse the glossary.xml file and insert the terms
1047         xml_parser_set_option($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');
1050
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($xml_parser)));
1055         }
1056         xml_parser_free($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, $db);
1062                 }
1063         }
1064 }
1065 */
1066 // Check if all the files exists in the manifest, iff it's a IMS CC package.
1067 if ($content_type == 'IMS Common Cartridge') {
1068         checkResources($import_path);
1069 }
1070
1071 // Check if there are any errors during parsing.
1072 if ($msg->containsErrors()) {
1073         if (isset($_GET['tile'])) {
1074                 header('Location: '.$_base_path.'tools/tile/index.php');
1075         } else if ($oauth_import) {
1076                 echo "error=".urlencode('Error at parsing IMS manifest file');
1077         } else {
1078                 header('Location: '.$_SERVER['HTTP_REFERER']);
1079         }
1080         if (file_exists($full_filename)) @unlink($full_filename);
1081         exit;
1082 }
1083
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($_POST['_course_id']))
1087 {
1088         if (isset($_POST['hide_course']))
1089                 $access = 'private';
1090         else
1091                 $access = 'public';
1092
1093         if (isset($course_primary_lang))
1094         {
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];
1098         }
1099
1100         $_course_id = $coursesDAO->Create($_SESSION['user_id'], 'top', $access, $course_title, $course_description,
1101                      '', '', '', '', $course_primary_lang, '', '');
1102
1103         check_available_size($_course_id);
1104
1105         // insert author role into table "user_courses"
1106         $userCoursesDAO = new UserCoursesDAO();
1107         $userCoursesDAO->Create($_SESSION['user_id'], $_course_id, TR_USERROLE_AUTHOR, 0);
1108 }
1109 else $_course_id = $_POST['_course_id'];
1110
1111 // end of added by Cindy Li on Jan 10, 2010
1112
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);
1121 }
1122
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);
1126
1127 $course_dir = TR_CONTENT_DIR.$_course_id.'/';
1128
1129 if (is_dir($course_dir.$package_base_name)) {
1130         $package_base_name .= '_'.date('ymdHis');
1131 }
1132
1133 if ($package_base_path) {
1134         $package_base_path = implode('/', $package_base_path);
1135 } elseif (empty($package_base_path)){
1136         $package_base_path = '';
1137 }
1138
1139 if ($xml_base_path) {
1140         $package_base_path = $xml_base_path . $package_base_path;
1141
1142         mkdir($import_path.$xml_base_path);
1143         $package_base_name = $xml_base_path . $package_base_name;
1144 }
1145
1146 /* get the top level content ordering offset */
1147 //$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)
1158 {
1159         //formatting field, default 1
1160         $content_formatting = 1;        //CONTENT_TYPE_CONTENT
1161
1162         //don't want to display glossary as a page
1163         if ($content_info['href']== $glossary_path . 'glossary.xml'){
1164                 continue;
1165         }
1166
1167         //if discussion tools, add it to the list of unhandled dts
1168         if ($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']]++;
1172                         continue;
1173                 }
1174         }
1175
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, $import_path);
1182                 }
1183         }
1184
1185         //if it has no title, most likely it is not a page but just a normal item, skip it
1186         if (!isset($content_info['title'])){
1187                 continue;
1188         }
1189
1190         //check dependency immediately, then handles it
1191         $head = '';
1192         if (is_array($content_info['dependency']) && !empty($content_info['dependency'])){
1193                 foreach($content_info['dependency'] as $dependency_ref){
1194                         //handle styles
1195                         /** handled by get_html_head in vitals.inc.php
1196                         if (preg_match('/(.*)\.css$/', $items[$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[$dependency_ref]['href'].'" />';
1200                         }
1201                         */
1202                         //check if this is a discussion tool dependency
1203                         if ($items[$dependency_ref]['type']=='imsdt_xmlv1p0'){
1204                                 $items[$item_id]['forum'][$dependency_ref] = $items[$dependency_ref]['href'];
1205                         }
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'];
1209                         }
1210                 }
1211         }
1212
1213         //check file array, see if there are css.
1214         //edited nov 26, harris
1215         //removed cuz i added link to the html_tags
1216         /*
1217         if (is_array($content_info['file']) && !empty($content_info['file'])){
1218                 foreach($content_info['file'] as $dependency_ref){
1219                         //handle styles
1220                         if (preg_match('/(.*)\.css$/', $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.'" />';
1224                         }
1225                 }
1226         }
1227         */
1228
1229         // remote href
1230         if (preg_match('/^http.*:\/\//', trim($content_info['href'])) )
1231         {
1232                 $content = '<a href="'.$content_info['href'].'" target="_blank">'.$content_info['title'].'</a>';
1233         }
1234         else
1235         {
1236                 if ($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                         $content_info['new_path'] = '';
1241                 }
1242                 if (isset($content_info['href'], $xml_base_path)) {
1243                         $content_info['href'] = $xml_base_path . $content_info['href'];
1244                 }
1245                 if (!isset($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
1248                         // Hop over
1249                         $content = '';
1250                         $ext = '';
1251                         $last_modified = date('Y-m-d H:i:s');
1252                 } else {
1253                         //$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) {
1256                                 continue;
1257                         }
1258
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']);
1262
1263                         $last_modified = date('Y-m-d H:i:s', $file_info['mtime']);
1264                 }
1265                 if (in_array($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') {
1269                         /* this is flash */
1270             /* Using default size of 550 x 400 */
1271
1272                         $content = '<object type="application/x-shockwave-flash" data="' . $content_info['href'] . '" width="550" height="400"><param name="movie" value="'. $content_info['href'] .'" /></object>';
1273
1274                 } else if ($ext == 'mov') {
1275                         /* this is a quicktime movie  */
1276             /* Using default size of 550 x 400 */
1277
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>';
1279
1280                 /* Oct 19, 2009
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.
1283                  * @harris
1284                  *
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);
1290
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);
1294
1295                  */
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="'.$content_info['href'].'"></noembed></embed>';
1300
1301                 } else if (in_array($ext, array('txt', 'css', 'html', 'htm', 'csv', 'asc', 'tsv', 'xml', 'xsl'))) {
1302                         if ($content_type == 'IMS Common Cartridge'){
1303                                 $content_info['new_path'] = $content_new_path;
1304                         }
1305
1306                         /* this is a plain text file */
1307                         //$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. */
1312                                 continue;
1313                         }
1314
1315                         // get the contents of the 'head' element
1316                         $head .= ContentUtility::getHtmlHeadByTag($content, $html_head_tags);
1317
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;
1322
1323                         // check xml file in eXe package
1324                         if (preg_match("/<organization[ ]*identifier=\"eXe*>*/", $ims_manifest_xml))
1325                         {
1326                                 $isExeContent = true;
1327                         }
1328
1329                         // use ATutor's eXe style sheet as the ones from eXe conflicts with ATutor's style sheets
1330                         if ($isExeContent)
1331                         {
1332                                 $head = preg_replace ('/(<style.*>)(.*)(<\/style>)/ms', '\\1@import url(/docs/exestyles.css);\\3', $head);
1333                         }
1334
1335                         // end of specifically handle eXe package
1336
1337                         $content = ContentUtility::getHtmlBody($content);
1338                         if ($contains_glossary_terms)
1339                         {
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[/?]', $content);
1343                         }
1344
1345                         /* potential security risk? */
1346                         if ( strpos($content_info['href'], '..') === false && !preg_match('/((.*)\/)*tests\_[0-9]+\.xml$/', $content_info['href'])) {
1347 //                              @unlink(TR_CONTENT_DIR . 'import/'.$_POST['_course_id'].'/'.$content_info['href']);
1348                         }
1349
1350                         // overwrite content if this is discussion tool.
1351                         if ($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 = $forum_obj->getText();
1357                                 unset($forum_obj);
1358                                 $dt_parser->close();
1359                         }
1360                 } else if ($ext) {
1361                         /* non text file, and can't embed (example: PDF files) */
1362                         $content = '<a href="'.$content_info['href'].'">'.$content_info['title'].'</a>';
1363                 }
1364         }
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;
1371                 }
1372         }
1373
1374         $my_offset = 0;
1375         if ($content_parent_id == $cid) {
1376                 $my_offset = $order_offset;
1377         }
1378
1379         /* replace the old path greatest common denomiator with the new package path. */
1380         /* we don't use str_replace, b/c there's no knowing what the paths may be         */
1381         /* we only want to replace the first part of the path.
1382         */
1383         if(is_array($all_package_base_path)){
1384                 $all_package_base_path = implode('/', $all_package_base_path);
1385         }
1386
1387         if ($common_path != '') {
1388                 $content_info['new_path'] = $package_base_name . substr($content_info['new_path'], strlen($common_path));
1389         } else {
1390                 $content_info['new_path'] = $package_base_name . '/' . $content_info['new_path'];
1391         }
1392
1393         //handles weblinks
1394         if ($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;
1402         }
1403 //      $head = addslashes($head);
1404 //      $content_info['title'] = addslashes($content_info['title']);
1405 //      $content_info['test_message'] = addslashes($content_info['test_message']);
1406
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'])) {
1410                 $content = ' ';
1411         }
1412 //      else {
1413 //              $content = addslashes($content);
1414 //      }
1415
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);
1419         }
1420
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);
1425
1426 //      $sql= 'INSERT INTO '.TABLE_PREFIX.'content'
1427 //            . '(course_id,
1428 //                content_parent_id,
1429 //                ordering,
1430 //                last_modified,
1431 //                revision,
1432 //                formatting,
1433 //                release_date,
1434 //                head,
1435 //                use_customized_head,
1436 //                keywords,
1437 //                content_path,
1438 //                title,
1439 //                text,
1440 //                        test_message,
1441 //                        content_type)
1442 //             VALUES
1443 //                           ('.$_SESSION['course_id'].','
1444 //                           .intval($content_parent_id).','
1445 //                           .($content_info['ordering'] + $my_offset - $lti_offset[$content_info['parent_content_id']] + 1).','
1446 //                           .'"'.$last_modified.'",
1447 //                            0,'
1448 //                           .$content_formatting.' ,
1449 //                            NOW(),"'
1450 //                           . $head .'",
1451 //                           1,
1452 //                            "",'
1453 //                           .'"'.$content_info['new_path'].'",'
1454 //                           .'"'.$content_info['title'].'",'
1455 //                           .'"'.$content.'",'
1456 //                               .'"'.$content_info['test_message'].'",'
1457 //                               .$content_folder_type.')';
1458 //
1459 //      $result = mysql_query($sql, $db) or die(mysql_error());
1460 //
1461 //      /* get the content id and update $items */
1462 //      $items[$item_id]['real_content_id'] = mysql_insert_id($db);
1463
1464         /* get the tests associated with this content */
1465         if (!empty($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'];
1469                 } else {
1470                         $loop_var = $items[$item_id]['file'];
1471                 }
1472
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];
1478                         } else {
1479                                 $item_qti = $items[$item_id];
1480                         }
1481                         //call subrountine to add the questions.
1482                         $qids = addQuestions($test_xml_file, $item_qti, $import_path);
1483
1484                         //import test
1485                         if ($test_title==''){
1486                                 $test_title = $content_info['title'];
1487                         }
1488
1489                         $tid = $qti_import->importTest($test_title);
1490
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]);
1495                                 } else {
1496                                         $weight = 0;
1497                                 }
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);
1504                         }
1505
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, $db);
1512
1513 //                      if (!$msg->containsErrors()) {
1514 //                              $msg->addFeedback('IMPORT_SUCCEEDED');
1515 //                      }
1516                 }
1517         }
1518
1519         /* get the a4a related xml */
1520         if (isset($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[$item_id]['a4a']);
1524         }
1525
1526         // get the discussion tools (dependent to content)
1527         if (isset($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                         $dt_import = new DiscussionToolsImport();
1531
1532                         //if this forum has not been added, parse it and add it.
1533                         if (!isset($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();
1539                         }
1540                         //associate the fid and content id
1541 //                      $dt_import->associateForum($items[$item_id]['real_content_id'], $added_dt[$forum_ref]);
1542                 }
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();
1552
1553                 //associate the fid and content id
1554 //              $dt_import->associateForum($items[$item_id]['real_content_id'], $added_dt[$item_id]);
1555         }
1556 }
1557
1558 //exit;//harris
1559 if ($package_base_path == '.') {
1560         $package_base_path = '';
1561 }
1562
1563 // create course directory
1564 if (!is_dir($course_dir)) {
1565         if (!@mkdir($course_dir, 0700)) {
1566                 $msg->addError('IMPORTDIR_FAILED');
1567         }
1568 }
1569
1570 // loop through the files outside the package folder, and copy them to its relative path
1571 /**
1572 if (is_dir($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.'/'.$file);
1578                 }
1579         }
1580         closedir($handler);
1581 }
1582 **/
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.'/'.$package_base_name);
1587 }
1588 //--- end
1589 //takes care of the condition where the whole package doesn't have any contents but question banks
1590 //also is the case of urls
1591 if(is_array($all_package_base_path)){
1592         $all_package_base_path = implode('/', $all_package_base_path);
1593
1594         if(strpos($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');
1599                                 } else {
1600                                         $msg->addError('IMPORT_FAILED');
1601                                 }
1602                 }
1603             }
1604         }
1605 }
1606 //check if there are still resources missing
1607 foreach($items as $idetails){
1608         $temp_path = pathinfo($idetails['href']);
1609         @rename($import_path.$temp_path['dirname'], $course_dir.$package_base_name . '/' . $temp_path['dirname']);
1610 }
1611 FileUtility::clr_dir($import_path);
1612
1613 if (file_exists($full_filename)) @unlink($full_filename);
1614
1615 if ($oauth_import) {
1616         echo 'course_id='.$_course_id;
1617 } else {
1618         if (!$msg->containsErrors()) {
1619                 $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1620         }
1621         header('Location: ../course/index.php?_course_id='.$_course_id);
1622 }
1623 exit;
1624
1625 //      if ($_POST['s_cid']){
1626 //      if (!$msg->containsErrors()) {
1627 //              $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1628 //      }
1629 //      header('Location: ../../editor/edit_content.php?cid='.intval($_POST['cid']));
1630 //      exit;
1631 //} else {
1632 //      if (!$msg->containsErrors()) {
1633 //              $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
1634 //      }
1635 //      if ($_GET['tile']) {
1636 //              header('Location: '.TR_BASE_HREF.'tools/tile/index.php');
1637 //      } else {
1638 //              header('Location: ../index.php?cid='.intval($_POST['cid']));
1639 //      }
1640 //      exit;
1641 //}
1642
1643 ?>