docs/mods/_core/editor/editor_tab_functions.inc.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2010                                              */
   6 /* Inclusive Design Institute                                           */
   7 /* http://atutor.ca                                                     */
   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 // $Id$
  13 if (!defined('AT_INCLUDE_PATH')) { exit; }
  14
  15 function in_array_cin($strItem, $arItems)
  16 {
  17    foreach ($arItems as $key => $strValue)
  18    {
  19        if (strtoupper($strItem) == strtoupper($strValue))
  20        {
  21                    return $key;
  22        }
  23    }
  24    return false;
  25 }
  26
  27
  28 function get_tabs() {
  29         //these are the _AT(x) variable names and their include file
  30         /* tabs[tab_id] = array(tab_name, file_name,                accesskey) */
  31         $tabs[0] = array('content',                     'edit.inc.php',          'n');
  32         $tabs[1] = array('properties',                  'properties.inc.php',    'p');
  33         $tabs[2] = array('glossary_terms',              'glossary.inc.php',      'g');
  34         //Silvia: Added to declare alternative resources
  35         $tabs[3] = array('alternative_content', 'alternatives.inc.php',  'l');
  36         //Harris: Extended test functionality into content export
  37         $tabs[4] = array('tests',                               'tests.inc.php',                 't');
  38
  39         return $tabs;
  40 }
  41
  42
  43 function output_tabs($current_tab, $changes) {
  44         global $_base_path;
  45         $tabs = get_tabs();
  46         $num_tabs = count($tabs);
  47 ?>
  48         <br /><br /><table class="etabbed-table" border="0" cellpadding="0" cellspacing="0">
  49         <tr>
  50                 <?php
  51                 for ($i=0; $i < $num_tabs; $i++):
  52                         if ($current_tab == $i):?>
  53                                 <td class="editor_tab_selected">
  54                                         <?php if ($changes[$i]): ?>
  55                                                 <img src="<?php echo $_base_path; ?>images/changes_bullet.gif" alt="<?php echo _AT('usaved_changes_made'); ?>" height="12" width="15" />
  56                                         <?php endif; ?>
  57                                         <?php echo _AT($tabs[$i][0]); ?>
  58                                 </td>
  59                                 <td class="tab-spacer">&nbsp;</td>
  60                         <?php else: ?>
  61                                 <td class="editor_tab">
  62                                         <?php if ($changes[$i]): ?>
  63                                                 <img src="<?php echo $_base_path; ?>images/changes_bullet.gif" alt="<?php echo _AT('usaved_changes_made'); ?>" height="12" width="15" />
  64                                         <?php endif; ?>
  65
  66                                         <?php echo '<input type="submit" name="button_'.$i.'" value="'._AT($tabs[$i][0]).'" title="'._AT($tabs[$i][0]).' - alt '.$tabs[$i][2].'" class="editor_buttontab" accesskey="'.$tabs[$i][2].'" onmouseover="this.style.cursor=\'pointer\';" '.$clickEvent.' />'; ?>
  67                                 </td>
  68                                 <td class="tab-spacer">&nbsp;</td>
  69                         <?php endif; ?>
  70                 <?php endfor; ?>
  71                 <td >&nbsp;</td>
  72         </tr>
  73         </table>
  74 <?php }
  75 /**
  76  * Strips all tags and encodes special characters in the URL
  77  * Returns false if the URL is invalid
  78  *
  79  * @param string $url
  80  * @return mixed - returns a stripped and encoded URL or false if URL is invalid
  81  */
  82 function isValidURL($url) {
  83     if (substr($url,0,4) === 'http') {
  84         return filter_var(filter_var($url, FILTER_SANITIZE_STRING), FILTER_VALIDATE_URL);
  85     }
  86     return false;
  87 }
  88
  89 /*
  90  * Parse the primary resources out of the content and save into db.
  91  * Clean up the removed primary resources from db.
  92  * @param: $cid: content id
  93  * @param: $content
  94  * @return: none
  95  */
  96 function populate_a4a($cid, $content, $formatting){
  97         global $db, $my_files, $content_base_href, $contentManager;
  98
  99         // Defining alternatives is only available for content type "html".
 100         // But don't clean up the a4a tables at other content types in case the user needs them back at html.
 101         if ($formatting <> 1) return;
 102
 103         include_once(AT_INCLUDE_PATH.'../mods/_core/imsafa/classes/A4a.class.php');
 104         include_once(AT_INCLUDE_PATH.'classes/XML/XML_HTMLSax/XML_HTMLSax.php');        /* for XML_HTMLSax */
 105         include_once(AT_INCLUDE_PATH.'classes/ContentOutputParser.class.php');  /* for parser */
 106
 107         // initialize content_base_href; used in format_content
 108         if (!isset($content_base_href)) {
 109                 $result = $contentManager->getContentPage($cid);
 110                 // return if the cid is not found
 111                 if (!($content_row = @mysql_fetch_assoc($result))) return;
 112                 $content_base_href = $content_row["content_path"].'/';
 113         }
 114
 115         $body = format_content($content, $formatting,array());
 116
 117         $handler = new ContentOutputParser();
 118         $parser = new XML_HTMLSax();
 119         $parser->set_object($handler);
 120         $parser->set_element_handler('openHandler','closeHandler');
 121
 122         $my_files               = array();
 123         $parser->parse($body);
 124         $my_files = array_unique($my_files);
 125
 126         foreach ($my_files as $file) {
 127                 /* filter out full urls */
 128                 $url_parts = @parse_url($file);
 129
 130                 // file should be relative to content
 131                 if ((substr($file, 0, 1) == '/')) {
 132                         continue;
 133                 }
 134
 135                 // The URL of the movie from youtube.com has been converted above in embed_media().
 136                 // For example:  http://www.youtube.com/watch?v=a0ryB0m0MiM is converted to
 137                 // http://www.youtube.com/v/a0ryB0m0MiM to make it playable. This creates the problem
 138                 // that the parsed-out url (http://www.youtube.com/v/a0ryB0m0MiM) does not match with
 139                 // the URL saved in content table (http://www.youtube.com/watch?v=a0ryB0m0MiM).
 140                 // The code below is to convert the URL back to original.
 141                 $file = convert_youtube_playURL_to_watchURL($file);
 142
 143                 $resources[] = convert_amp($file);  // converts & to &amp;
 144         }
 145
 146     $a4a = new A4a($cid);
 147     $db_primary_resources = $a4a->getPrimaryResources();
 148
 149     // clean up the removed resources
 150     foreach ($db_primary_resources  as $primary_rid=>$db_resource){
 151         //if this file from our table is not found in the $resource, then it's not used.
 152         if(count($resources) == 0 || !in_array($db_resource['resource'], $resources)){
 153                 $a4a->deletePrimaryResource($primary_rid);
 154         }
 155     }
 156
 157     if (count($resources) == 0) return;
 158
 159         // insert the new resources
 160     foreach($resources as $primary_resource)
 161         {
 162                 if (!$a4a->getPrimaryResourceByName($primary_resource)){
 163                         $a4a->setPrimaryResource($cid, $primary_resource, $_SESSION['lang']);
 164                 }
 165         }
 166 }
 167
 168 // save all changes to the DB
 169 function save_changes($redir, $current_tab) {
 170         global $contentManager, $db, $addslashes, $msg, $stripslashes;
 171
 172         $_POST['pid']   = intval($_POST['pid']);
 173         $_POST['cid']   = intval($_POST['cid']);
 174
 175         $_POST['alternatives'] = intval($_POST['alternatives']);
 176
 177         $_POST['title'] = trim($_POST['title']);
 178         $_POST['head']  = trim($_POST['head']);
 179         $_POST['use_customized_head']   = isset($_POST['use_customized_head'])?$_POST['use_customized_head']:0;
 180         $_POST['body_text']     = $stripslashes(trim($_POST['body_text']));
 181         $_POST['weblink_text'] = trim($_POST['weblink_text']);
 182         $_POST['formatting'] = intval($_POST['formatting']);
 183         $_POST['keywords']      = $stripslashes(trim($_POST['keywords']));
 184         $_POST['test_message'] = trim($_POST['test_message']);
 185         $_POST['allow_test_export'] = intval($_POST['allow_test_export']);
 186
 187         //if weblink is selected, use it
 188         if ($_POST['formatting']==CONTENT_TYPE_WEBLINK) {
 189             $url = $_POST['weblink_text'];
 190             $validated_url = isValidURL($url);
 191         if (!validated_url || $validated_url !== $url) {
 192                $msg->addError(array('INVALID_INPUT', _AT('weblink')));
 193             } else {
 194                     $_POST['body_text'] = $url;
 195                     $content_type_pref = CONTENT_TYPE_WEBLINK;
 196             }
 197         } else {
 198                 $content_type_pref = CONTENT_TYPE_CONTENT;
 199         }
 200
 201         if (!($release_date = generate_release_date())) {
 202                 $msg->addError('BAD_DATE');
 203         }
 204
 205         if ($_POST['title'] == '') {
 206                 $msg->addError(array('EMPTY_FIELDS', _AT('title')));
 207         }
 208
 209         if (!$msg->containsErrors()) {
 210                 $orig_body_text = $_POST['body_text'];  // used to populate a4a tables
 211
 212                 $_POST['title']                 = $addslashes($_POST['title']);
 213                 $_POST['body_text']             = $addslashes($_POST['body_text']);
 214                 $_POST['head']                  = $addslashes($_POST['head']);
 215                 $_POST['keywords']              = $addslashes($_POST['keywords']);
 216                 $_POST['test_message']  = $addslashes($_POST['test_message']);
 217
 218                 // add or edit content
 219                 if ($_POST['cid']) {
 220                         /* editing an existing page */
 221                         $err = $contentManager->editContent($_POST['cid'], $_POST['title'], $_POST['body_text'],
 222                                                             $_POST['keywords'], $_POST['related'], $_POST['formatting'],
 223                                                             $release_date, $_POST['head'], $_POST['use_customized_head'],
 224                                                             $_POST['test_message'], $_POST['allow_test_export'], $content_type_pref);
 225                         $cid = $_POST['cid'];
 226                 } else {
 227                         /* insert new */
 228
 229                         $cid = $contentManager->addContent($_SESSION['course_id'],
 230                                                                                                   $_POST['pid'],
 231                                                                                                   $_POST['ordering'],
 232                                                                                                   $_POST['title'],
 233                                                                                                   $_POST['body_text'],
 234                                                                                                   $_POST['keywords'],
 235                                                                                                   $_POST['related'],
 236                                                                                                   $_POST['formatting'],
 237                                                                                                   $release_date,
 238                                                                                                   $_POST['head'],
 239                                                                                                   $_POST['use_customized_head'],
 240                                                                                                   $_POST['test_message'],
 241                                                                                                   $_POST['allow_test_export'],
 242                                                                                                   $content_type_pref);
 243                         $_POST['cid']    = $cid;
 244                         $_REQUEST['cid'] = $cid;
 245                 }
 246                 // re-populate a4a tables based on the new content
 247                 populate_a4a($cid, $orig_body_text, $_POST['formatting']);
 248         }
 249         else return;
 250
 251         /* insert glossary terms */
 252         if (is_array($_POST['glossary_defs']) && ($num_terms = count($_POST['glossary_defs']))) {
 253                 global $glossary, $glossary_ids, $msg;
 254
 255                 foreach($_POST['glossary_defs'] as $w => $d) {
 256                         $old_w = $w;
 257                         $key = in_array_cin($w, $glossary_ids);
 258                         $w = urldecode($w);
 259                         $d = $addslashes($d);
 260
 261                         if (($key !== false) && (($glossary[$old_w] != $d) || isset($_POST['related_term'][$old_w])) ) {
 262                                 $w = addslashes($w);
 263                                 $related_id = intval($_POST['related_term'][$old_w]);
 264                                 $sql = "UPDATE ".TABLE_PREFIX."glossary SET definition='$d', related_word_id=$related_id WHERE word_id=$key AND course_id=$_SESSION[course_id]";
 265                                 $result = mysql_query($sql, $db);
 266                                 $glossary[$old_w] = $d;
 267                         } else if ($key === false && ($d != '')) {
 268                                 $w = addslashes($w);
 269                                 $related_id = intval($_POST['related_term'][$old_w]);
 270                                 $sql = "INSERT INTO ".TABLE_PREFIX."glossary VALUES (NULL, $_SESSION[course_id], '$w', '$d', $related_id)";
 271
 272                                 $result = mysql_query($sql, $db);
 273                                 $glossary[$old_w] = $d;
 274                         }
 275                 }
 276         }
 277         if (isset($_GET['tab'])) {
 278                 $current_tab = intval($_GET['tab']);
 279         }
 280         if (isset($_POST['current_tab'])) {
 281                 $current_tab = intval($_POST['current_tab']);
 282         }
 283
 284         // adapted content: save primary content type
 285         if (isset($_POST['use_post_for_alt']))
 286         {
 287                 // 1. delete old primary content type
 288                 $sql = "DELETE FROM ".TABLE_PREFIX."primary_resources_types
 289                          WHERE primary_resource_id in
 290                                (SELECT DISTINCT primary_resource_id
 291                                   FROM ".TABLE_PREFIX."primary_resources
 292                                  WHERE content_id=".$cid."
 293                                    AND language_code='".$_SESSION['lang']."')";
 294                 $result = mysql_query($sql, $db);
 295
 296                 // 2. insert the new primary content type
 297                 $sql = "SELECT pr.primary_resource_id, rt.type_id
 298                           FROM ".TABLE_PREFIX."primary_resources pr, ".
 299                                  TABLE_PREFIX."resource_types rt
 300                          WHERE pr.content_id = ".$cid."
 301                            AND pr.language_code = '".$_SESSION['lang']."'";
 302                 $all_types_result = mysql_query($sql, $db);
 303
 304                 while ($type = mysql_fetch_assoc($all_types_result)) {
 305                         if (isset($_POST['alt_'.$type['primary_resource_id'].'_'.$type['type_id']]))
 306                         {
 307                                 $sql = "INSERT INTO ".TABLE_PREFIX."primary_resources_types (primary_resource_id, type_id)
 308                                         VALUES (".$type['primary_resource_id'].", ".$type['type_id'].")";
 309                                 $result = mysql_query($sql, $db);
 310                         }
 311                 }
 312         }
 313
 314         //Add test to this content - @harris
 315         $sql = 'SELECT * FROM '.TABLE_PREFIX."content_tests_assoc WHERE content_id=$_POST[cid]";
 316         $result = mysql_query($sql, $db);
 317         $db_test_array = array();
 318         while ($row = mysql_fetch_assoc($result)) {
 319                 $db_test_array[] = $row['test_id'];
 320         }
 321
 322         if (is_array($_POST['tid']) && sizeof($_POST['tid']) > 0){
 323                 $toBeDeleted = array_diff($db_test_array, $_POST['tid']);
 324                 $toBeAdded = array_diff($_POST['tid'], $db_test_array);
 325                 //Delete entries
 326                 if (!empty($toBeDeleted)){
 327                         $tids = implode(",", $toBeDeleted);
 328                         $sql = 'DELETE FROM '. TABLE_PREFIX . "content_tests_assoc WHERE content_id=$_POST[cid] AND test_id IN ($tids)";
 329                         $result = mysql_query($sql, $db);
 330                 }
 331
 332                 //Add entries
 333                 if (!empty($toBeAdded)){
 334                         foreach ($toBeAdded as $i => $tid){
 335                                 $tid = intval($tid);
 336                                 $sql = 'INSERT INTO '. TABLE_PREFIX . "content_tests_assoc SET content_id=$_POST[cid], test_id=$tid";
 337                                 $result = mysql_query($sql, $db);
 338                                 if ($result===false){
 339                                         $msg->addError('MYSQL_FAILED');
 340                                 }
 341                         }
 342                 }
 343         } else {
 344                 //All tests has been removed.
 345                 $sql = 'DELETE FROM '. TABLE_PREFIX . "content_tests_assoc WHERE content_id=$_POST[cid]";
 346                 $result = mysql_query($sql, $db);
 347         }
 348         //End Add test
 349
 350         // add pre-tests
 351         $sql = "DELETE FROM ". TABLE_PREFIX . "content_prerequisites
 352                  WHERE content_id=".$_POST[cid]." AND type='".CONTENT_PRE_TEST."'";
 353         $result = mysql_query($sql, $db);
 354
 355         if (is_array($_POST['pre_tid']) && sizeof($_POST['pre_tid']) > 0)
 356         {
 357                 foreach ($_POST['pre_tid'] as $i => $tid){
 358                         $tid = intval($tid);
 359                         $sql = "INSERT INTO ". TABLE_PREFIX . "content_prerequisites
 360                                    SET content_id=".$_POST[cid].", type='".CONTENT_PRE_TEST."', item_id=$tid";
 361                         $result = mysql_query($sql, $db);
 362
 363                         if ($result===false) $msg->addError('MYSQL_FAILED');
 364                 }
 365         }
 366
 367         //TODO*******************BOLOGNA****************REMOVE ME**************/
 368          if(isset($_SESSION['associated_forum']) && !$msg->containsErrors()){
 369             if($_SESSION['associated_forum']=='none'){
 370                 $sql = "DELETE FROM ".TABLE_PREFIX."content_forums_assoc WHERE content_id='$_POST[cid]'";
 371                 mysql_query($sql,$db);
 372             } else {
 373                 $sql = "DELETE FROM ".TABLE_PREFIX."content_forums_assoc WHERE content_id='$_POST[cid]'";
 374                 mysql_query($sql,$db);
 375                 $associated_forum = $_SESSION['associated_forum'];
 376                 for($i=0; $i<count($associated_forum); $i++){
 377                     $sql="INSERT INTO ".TABLE_PREFIX."content_forums_assoc SET content_id='$_POST[cid]',forum_id='$associated_forum[$i]'";
 378                     mysql_query($sql,$db);
 379                 }
 380             }
 381             unset($_SESSION['associated_forum']);
 382          }
 383
 384
 385         if (!$msg->containsErrors() && $redir) {
 386                 $_SESSION['save_n_close'] = $_POST['save_n_close'];
 387
 388                 $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
 389                 header('Location: '.basename($_SERVER['PHP_SELF']).'?cid='.$cid.SEP.'close='.$addslashes($_POST['save_n_close']).SEP.'tab='.$addslashes($_POST['current_tab']).SEP.'displayhead='.$addslashes($_POST['displayhead']).SEP.'alternatives='.$addslashes($_POST['alternatives']));
 390                 exit;
 391         } else {
 392                 return;
 393         }
 394 }
 395
 396 function generate_release_date($now = false) {
 397         if ($now) {
 398                 $day  = date('d');
 399                 $month= date('m');
 400                 $year = date('Y');
 401                 $hour = date('H');
 402                 $min  = 0;
 403         } else {
 404                 $day    = intval($_POST['day']);
 405                 $month  = intval($_POST['month']);
 406                 $year   = intval($_POST['year']);
 407                 $hour   = intval($_POST['hour']);
 408                 $min    = intval($_POST['min']);
 409         }
 410
 411         if (!checkdate($month, $day, $year)) {
 412                 return false;
 413         }
 414
 415         if (strlen($month) == 1){
 416                 $month = "0$month";
 417         }
 418         if (strlen($day) == 1){
 419                 $day = "0$day";
 420         }
 421         if (strlen($hour) == 1){
 422                 $hour = "0$hour";
 423         }
 424         if (strlen($min) == 1){
 425                 $min = "0$min";
 426         }
 427         $release_date = "$year-$month-$day $hour:$min:00";
 428
 429         return $release_date;
 430 }
 431
 432 function check_for_changes($row, $row_alternatives) {
 433         global $contentManager, $cid, $glossary, $glossary_ids_related, $addslashes;
 434
 435         $changes = array();
 436
 437         if ($row && strcmp(trim($addslashes($_POST['title'])), addslashes($row['title']))) {
 438                 $changes[0] = true;
 439         } else if (!$row && $_POST['title']) {
 440                 $changes[0] = true;
 441         }
 442
 443         if ($row && strcmp($addslashes(trim($_POST['head'])), trim(addslashes($row['head'])))) {
 444                 $changes[0] = true;
 445         } else if (!$row && $_POST['head']) {
 446                 $changes[0] = true;
 447         }
 448
 449         if ($row && strcmp($addslashes(trim($_POST['body_text'])), trim(addslashes($row['text'])))) {
 450                 $changes[0] = true;
 451         } else if (!$row && $_POST['body_text']) {
 452                 $changes[0] = true;
 453         }
 454
 455     if ($row && strcmp($addslashes(trim($_POST['weblink_text'])), trim(addslashes($row['text'])))) {
 456         $changes[0] = true;
 457     } else if (!$row && $_POST['weblink_text']) {
 458         $changes[0] = true;
 459     }
 460
 461         /* use customized head: */
 462         if ($row && isset($_POST['use_customized_head']) && ($_POST['use_customized_head'] != $row['use_customized_head'])) {
 463                 $changes[0] = true;
 464         }
 465
 466         /* formatting: */
 467         if ($row && strcmp(trim($_POST['formatting']), $row['formatting'])) {
 468                 $changes[0] = true;
 469         } else if (!$row && $_POST['formatting']) {
 470                 $changes[0] = true;
 471         }
 472
 473         /* release date: */
 474         if ($row && strcmp(substr(generate_release_date(), 0, -2), substr($row['release_date'], 0, -2))) {
 475                 /* the substr was added because sometimes the release_date in the db has the seconds field set, which we dont use */
 476                 /* so it would show a difference, even though it should actually be the same, so we ignore the seconds with the -2 */
 477                 /* the seconds gets added if the course was created during the installation process. */
 478                 $changes[1] = true;
 479         } else if (!$row && strcmp(generate_release_date(), generate_release_date(true))) {
 480                 $changes[1] = true;
 481         }
 482
 483         /* related content: */
 484         $row_related = $contentManager->getRelatedContent($cid);
 485
 486         if (is_array($_POST['related']) && is_array($row_related)) {
 487                 $sum = array_sum(array_diff($_POST['related'], $row_related));
 488                 $sum += array_sum(array_diff($row_related, $_POST['related']));
 489                 if ($sum > 0) {
 490                         $changes[1] = true;
 491                 }
 492         } else if (!is_array($_POST['related']) && !empty($row_related)) {
 493                 $changes[1] = true;
 494         }
 495
 496         /* keywords */
 497         if ($row && strcmp(trim($_POST['keywords']), $row['keywords'])) {
 498                 $changes[1] = true;
 499         }  else if (!$row && $_POST['keywords']) {
 500                 $changes[1] = true;
 501         }
 502
 503
 504         /* glossary */
 505         if (is_array($_POST['glossary_defs'])) {
 506                 global $glossary_ids;
 507                 foreach ($_POST['glossary_defs'] as $w => $d) {
 508
 509                         $key = in_array_cin($w, $glossary_ids);
 510                         if ($key === false) {
 511                                 /* new term */
 512                                 $changes[2] = true;
 513                                 break;
 514                         } else if ($cid && ($d &&($d != $glossary[$glossary_ids[$key]]))) {
 515                                 /* changed term */
 516                                 $changes[2] = true;
 517                                 break;
 518                         }
 519                 }
 520
 521                 if (is_array($_POST['related_term'])) {
 522                         foreach($_POST['related_term'] as $term => $r_id) {
 523                                 if ($glossary_ids_related[$term] != $r_id) {
 524                                         $changes[2] = true;
 525                                         break;
 526                                 }
 527                         }
 528                 }
 529         }
 530
 531         /* adapted content */
 532         if (isset($_POST['use_post_for_alt']))
 533         {
 534                 foreach ($_POST as $alt_id => $alt_value) {
 535                         if (substr($alt_id, 0 ,4) == 'alt_' && $alt_value != $row_alternatives[$alt_id]){
 536                                 $changes[3] = true;
 537                                 break;
 538                         }
 539                 }
 540         }
 541
 542         /* test & survey */
 543         if ($row && isset($_POST['test_message']) && $_POST['test_message'] != $row['test_message']){
 544                 $changes[4] = true;
 545         }
 546         if ($row && isset($_POST['allow_test_export']) && $_POST['allow_test_export'] != $row['allow_test_export']){
 547                 $changes[4] = true;
 548         }
 549
 550         return $changes;
 551 }
 552
 553 function paste_from_file() {
 554         global $msg;
 555         if ($_FILES['uploadedfile_paste']['name'] == '')        {
 556                 $msg->addError('FILE_NOT_SELECTED');
 557                 return;
 558         }
 559         if ($_FILES['uploadedfile_paste']['name']
 560                 && (($_FILES['uploadedfile_paste']['type'] == 'text/plain')
 561                         || ($_FILES['uploadedfile_paste']['type'] == 'text/html')) )
 562                 {
 563
 564                 $path_parts = pathinfo($_FILES['uploadedfile_paste']['name']);
 565                 $ext = strtolower($path_parts['extension']);
 566
 567                 if (in_array($ext, array('html', 'htm'))) {
 568                         $_POST['body_text'] = file_get_contents($_FILES['uploadedfile_paste']['tmp_name']);
 569
 570                         /* get the <title></title> of this page                         */
 571
 572                         $start_pos      = strpos(strtolower($_POST['body_text']), '<title>');
 573                         $end_pos        = strpos(strtolower($_POST['body_text']), '</title>');
 574
 575                         if (($start_pos !== false) && ($end_pos !== false)) {
 576                                 $start_pos += strlen('<title>');
 577                                 $_POST['title'] = trim(substr($_POST['body_text'], $start_pos, $end_pos-$start_pos));
 578                         }
 579                         unset($start_pos);
 580                         unset($end_pos);
 581
 582                         $_POST['head'] = get_html_head_by_tag($_POST['body_text'], array("link", "style", "script"));
 583                         if (strlen(trim($_POST['head'])) > 0)
 584                                 $_POST['use_customized_head'] = 1;
 585                         else
 586                                 $_POST['use_customized_head'] = 0;
 587
 588                         $_POST['body_text'] = get_html_body($_POST['body_text']);
 589
 590                         $msg->addFeedback('FILE_PASTED');
 591                 } else if ($ext == 'txt') {
 592                         $_POST['body_text'] = file_get_contents($_FILES['uploadedfile_paste']['tmp_name']);
 593                         $msg->addFeedback('FILE_PASTED');
 594
 595                 }
 596         } else {
 597                 $msg->addError('BAD_FILE_TYPE');
 598         }
 599
 600         return;
 601 }
 602
 603 //for accessibility checker
 604 function write_temp_file() {
 605         global $_POST, $msg;
 606
 607         if (defined('AT_FORCE_GET_FILE') && AT_FORCE_GET_FILE) {
 608                 $content_base = 'get.php/';
 609         } else {
 610                 $content_base = 'content/' . $_SESSION['course_id'] . '/';
 611         }
 612
 613         if ($_POST['content_path']) {
 614                 $content_base .= $_POST['content_path'] . '/';
 615         }
 616
 617         $file_name = $_POST['cid'].'.html';
 618
 619         if ($handle = fopen(AT_CONTENT_DIR . $file_name, 'wb+')) {
 620 //              $temp_content = '<h2>'.AT_print(stripslashes($_POST['title']), 'content.title').'</h2>';
 621 //
 622 //              if ($_POST['body_text'] != '') {
 623 //                      $temp_content .= format_content(stripslashes($_POST['body_text']), $_POST['formatting'], $_POST['glossary_defs']);
 624 //              }
 625 //              $temp_title = $_POST['title'];
 626 //
 627 //              $html_template = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 628 //                      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 629 //              <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 630 //              <head>
 631 //                      <base href="{BASE_HREF}" />
 632 //                      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 633 //                      <title>{TITLE}</title>
 634 //                      <meta name="Generator" content="ATutor accessibility checker file - can be deleted">
 635 //              </head>
 636 //              <body>
 637 //              {CONTENT}
 638 //              </body>
 639 //              </html>';
 640 //
 641 //              $page_html = str_replace(       array('{BASE_HREF}', '{TITLE}', '{CONTENT}'),
 642 //                                                                      array($content_base, $temp_title, $temp_content),
 643 //                                                                      $html_template);
 644
 645                 if (!@fwrite($handle, stripslashes($_POST['body_text']))) {
 646                         $msg->addError('FILE_NOT_SAVED');
 647            }
 648         } else {
 649                 $msg->addError('FILE_NOT_SAVED');
 650         }
 651         $msg->printErrors();
 652 }
 653 ?>