mods/_core/file_manager/upload.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2010                                      */
   6 /* Inclusive Design Institute                                   */
   7 /* http://atutor.ca                                                                                             */
   8 /*                                                              */
   9 /* This program is free software. You can redistribute it and/or*/
  10 /* modify it under the terms of the GNU General Public License  */
  11 /* as published by the Free Software Foundation.                                */
  12 /****************************************************************/
  13 // $Id$
  14 define('AT_INCLUDE_PATH', '../../../include/');
  15 require(AT_INCLUDE_PATH.'vitals.inc.php');
  16 require_once(AT_INCLUDE_PATH.'../mods/_core/file_manager/filemanager.inc.php');
  17
  18 if (!authenticate(AT_PRIV_FILES,AT_PRIV_RETURN)) {
  19         authenticate(AT_PRIV_CONTENT);
  20 }
  21
  22 $_SESSION['done'] = 1;
  23 $popup = $_REQUEST['popup'];
  24 $framed = $_REQUEST['framed'];
  25 $alter = $_REQUEST['alter'];
  26
  27 //echo $_REQUEST['cid'];
  28 //echo $_REQUEST['tab'];
  29
  30 //echo $alter;
  31
  32 /* get this courses MaxQuota and MaxFileSize: */
  33 $sql    = "SELECT max_quota, max_file_size FROM ".TABLE_PREFIX."courses WHERE course_id=$_SESSION[course_id]";
  34 $result = mysql_query($sql, $db);
  35 $row    = mysql_fetch_array($result);
  36 $my_MaxCourseSize       = $row['max_quota'];
  37 $my_MaxFileSize = $row['max_file_size'];
  38
  39         if ($my_MaxCourseSize == AT_COURSESIZE_DEFAULT) {
  40                 $my_MaxCourseSize = $MaxCourseSize;
  41         }
  42         if ($my_MaxFileSize == AT_FILESIZE_DEFAULT) {
  43                 $my_MaxFileSize = $MaxFileSize;
  44         } else if ($my_MaxFileSize == AT_FILESIZE_SYSTEM_MAX) {
  45                 $my_MaxFileSize = megabytes_to_bytes(substr(ini_get('upload_max_filesize'), 0, -1));
  46         }
  47
  48 $path = AT_CONTENT_DIR . $_SESSION['course_id'].'/'.$_POST['pathext'];
  49
  50 if (isset($_POST['submit'])) {
  51     if($_FILES['file']) {
  52        $_FILES['uploadedfile'] = $_FILES['file'];
  53     }
  54         if($_FILES['uploadedfile']['name'])     {
  55
  56                 $_FILES['uploadedfile']['name'] = trim($_FILES['uploadedfile']['name']);
  57                 $_FILES['uploadedfile']['name'] = str_replace(' ', '_', $_FILES['uploadedfile']['name']);
  58
  59                 $path_parts = pathinfo($_FILES['uploadedfile']['name']);
  60                 $ext = $path_parts['extension'];
  61
  62                 /* check if this file extension is allowed: */
  63                 /* $IllegalExtentions is defined in ./include/config.inc.php */
  64                 if (in_array($ext, $IllegalExtentions)) {
  65                         $errors = array('FILE_ILLEGAL', $ext);
  66                         $msg->addError($errors);
  67                         handleAjaxUpload(500);
  68                         header('Location: index.php?pathext='.$_POST['pathext'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
  69                         exit;
  70                 }
  71
  72                 /* also have to handle the 'application/x-zip-compressed'  case */
  73                 if (   ($_FILES['uploadedfile']['type'] == 'application/x-zip-compressed')
  74                         || ($_FILES['uploadedfile']['type'] == 'application/zip')
  75                         || ($_FILES['uploadedfile']['type'] == 'application/x-zip')){
  76                         $is_zip = true;
  77                 }
  78
  79
  80                 /* anything else should be okay, since we're on *nix.. hopefully */
  81                 $_FILES['uploadedfile']['name'] = str_replace(array(' ', ',', '/', '\\', ':', ';', '*', '?', '"', '<', '>', '|', '\''), '', $_FILES['uploadedfile']['name']);
  82
  83                 /* if the file size is within allowed limits */
  84                 if( ($_FILES['uploadedfile']['size'] > 0) && ($_FILES['uploadedfile']['size'] <= $my_MaxFileSize) ) {
  85
  86                         /* if adding the file will not exceed the maximum allowed total */
  87                         $course_total = dirsize($path);
  88
  89                         if ((($course_total + $_FILES['uploadedfile']['size']) <= ($my_MaxCourseSize + $MaxCourseFloat)) || ($my_MaxCourseSize == AT_COURSESIZE_UNLIMITED)) {
  90
  91                                 /* check if this file exists first */
  92                                 if (file_exists($path.$_FILES['uploadedfile']['name'])) {
  93                                         /* this file already exists, so we want to prompt for override */
  94
  95                                         /* save it somewhere else, temporarily first                    */
  96                                         /* file_name.time ? */
  97                                         $_FILES['uploadedfile']['name'] = substr(time(), -4).'.'.$_FILES['uploadedfile']['name'];
  98
  99                                         $f = array('FILE_EXISTS',
 100                                                                         substr($_FILES['uploadedfile']['name'], 5),
 101                                                                         $_FILES['uploadedfile']['name'],
 102                                                                         $_POST['pathext'],
 103                                                                         $_GET['popup'],
 104                                                                         SEP);
 105                                         $msg->addFeedback($f);
 106                                 }
 107
 108                                 /* copy the file in the directory */
 109                                 $result = move_uploaded_file( $_FILES['uploadedfile']['tmp_name'], $path.$_FILES['uploadedfile']['name'] );
 110
 111                                 if (!$result) {
 112                                         require(AT_INCLUDE_PATH.'header.inc.php');
 113                                         $msg->printErrors('FILE_NOT_SAVED');
 114                                         echo '<a href="../mods/_core/file_manager/index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'] . SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type'].'">' . _AT('back') . '</a>';
 115                                         require(AT_INCLUDE_PATH.'footer.inc.php');
 116                                         exit;
 117                                 } else {
 118                                         if ($is_zip) {
 119                                                 $f = array('FILE_UPLOADED_ZIP',
 120                                                                                 urlencode($_POST['pathext']),
 121                                                                                 urlencode($_FILES['uploadedfile']['name']),
 122                                                                                 $_GET['popup'],
 123                                                                                 SEP);
 124                                                 $msg->addFeedback($f);
 125                                                 handleAjaxUpload(200);
 126                                                 if ($alter)
 127                                                         header('Location: '.$_base_href.'editor/edit_content.php?cid='.$_REQUEST['cid'].SEP . 'pathext='.$_POST['pathext'].SEP. 'popup='.$_GET['popup'].SEP. 'tab='.$_REQUEST['tab']);
 128                                                 else
 129                                                         header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
 130                                                 exit;
 131                                         } /* else */
 132
 133                                         // uploading an alternative content object
 134                                         if ($_GET['a_type'] > 0) {
 135                                                 header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type'].SEP.'uploadfile='.urlencode($_FILES['uploadedfile']['name']));
 136                                         }
 137                                         else {
 138                                                 $msg->addFeedback('FILE_UPLOADED');
 139                                                 handleAjaxUpload(200);
 140
 141                                                 if ($alter)
 142                                                         header('Location: '.$_base_href.'editor/edit_content.php?cid='.$_REQUEST['cid'].SEP . 'pathext='.$_POST['pathext'].SEP. 'popup='.$_GET['popup'].SEP. 'tab='.$_REQUEST['tab']);
 143                                                 else
 144                                                         header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
 145                                         }
 146                                         exit;
 147                                 }
 148                         } else {
 149                                 $msg->addError(array('MAX_STORAGE_EXCEEDED', get_human_size($my_MaxCourseSize)));
 150                                 handleAjaxUpload(500);
 151                                 if ($alter)
 152                                                         header('Location: '.$_base_href.'editor/edit_content.php?cid='.$_REQUEST['cid'].SEP . 'pathext='.$_POST['pathext'].SEP. 'popup='.$_GET['popup'].SEP. 'tab='.$_REQUEST['tab']);
 153                                                 else
 154                                                         header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
 155
 156                                 exit;
 157                         }
 158                 } else {
 159                         $msg->addError(array('FILE_TOO_BIG', get_human_size($my_MaxFileSize)));
 160                         handleAjaxUpload(500);
 161                         if ($alter)
 162                                                         header('Location: '.$_base_href.'editor/edit_content.php?cid='.$_REQUEST['cid'].SEP . 'pathext='.$_POST['pathext'].SEP. 'popup='.$_GET['popup'].SEP. 'tab='.$_REQUEST['tab']);
 163                                                 else
 164                                                         header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
 165
 166                         exit;
 167                 }
 168         } else {
 169                 $msg->addError('FILE_NOT_SELECTED');
 170                 handleAjaxUpload(500);
 171                 if ($alter)
 172                                                         header('Location: '.$_base_href.'editor/edit_content.php?cid='.$_REQUEST['cid'].SEP . 'pathext='.$_POST['pathext'].SEP. 'popup='.$_GET['popup'].SEP. 'tab='.$_REQUEST['tab']);
 173                                                 else
 174                                                         header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'].SEP. 'framed='.$framed.SEP.'cp='.$_GET['cp'].SEP.'pid='.$_GET['pid'].SEP.'cid='.$_GET['cid'].SEP.'a_type='.$_GET['a_type']);
 175                 exit;
 176         }
 177 }
 178
 179 ?>