tools/filemanager/upload.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2004 by Greg Gay & Joel Kronenberg        */
   6 /* Adaptive Technology Resource Centre / University of Toronto  */
   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
  15 define('AT_INCLUDE_PATH', '../../include/');
  16 require(AT_INCLUDE_PATH.'vitals.inc.php');
  17 require(AT_INCLUDE_PATH.'lib/filemanager.inc.php');
  18
  19 if (!authenticate(AT_PRIV_FILES,AT_PRIV_RETURN)) {
  20         authenticate(AT_PRIV_CONTENT);
  21 }
  22
  23 $_SESSION['done'] = 1;
  24 $popup = $_REQUEST['popup'];
  25 $framed = $_REQUEST['framed'];
  26
  27 /* get this courses MaxQuota and MaxFileSize: */
  28 $sql    = "SELECT max_quota, max_file_size FROM ".TABLE_PREFIX."courses WHERE course_id=$_SESSION[course_id]";
  29 $result = mysql_query($sql, $db);
  30 $row    = mysql_fetch_array($result);
  31 $my_MaxCourseSize       = $row['max_quota'];
  32 $my_MaxFileSize = $row['max_file_size'];
  33
  34         if ($my_MaxCourseSize == AT_COURSESIZE_DEFAULT) {
  35                 $my_MaxCourseSize = $MaxCourseSize;
  36         }
  37         if ($my_MaxFileSize == AT_FILESIZE_DEFAULT) {
  38                 $my_MaxFileSize = $MaxFileSize;
  39         } else if ($my_MaxFileSize == AT_FILESIZE_SYSTEM_MAX) {
  40                 $my_MaxFileSize = megabytes_to_bytes(substr(ini_get('upload_max_filesize'), 0, -1));
  41         }
  42
  43 $path = AT_CONTENT_DIR . $_SESSION['course_id'].'/'.$_POST['pathext'];
  44
  45 if (isset($_POST['submit'])) {
  46
  47         if($_FILES['uploadedfile']['name'])     {
  48
  49                 $_FILES['uploadedfile']['name'] = trim($_FILES['uploadedfile']['name']);
  50                 $_FILES['uploadedfile']['name'] = str_replace(' ', '_', $_FILES['uploadedfile']['name']);
  51
  52                 $path_parts = pathinfo($_FILES['uploadedfile']['name']);
  53                 $ext = $path_parts['extension'];
  54
  55                 /* check if this file extension is allowed: */
  56                 /* $IllegalExtentions is defined in ./include/config.inc.php */
  57                 if (in_array($ext, $IllegalExtentions)) {
  58                         $errors = array('FILE_ILLEGAL', $ext);
  59                         $msg->addError($errors);
  60                         header('Location: index.php?pathext='.$_POST['pathext']);
  61                         exit;
  62                 }
  63
  64                 /* also have to handle the 'application/x-zip-compressed'  case */
  65                 if (   ($_FILES['uploadedfile']['type'] == 'application/x-zip-compressed')
  66                         || ($_FILES['uploadedfile']['type'] == 'application/zip')
  67                         || ($_FILES['uploadedfile']['type'] == 'application/x-zip')){
  68                         $is_zip = true;
  69                 }
  70
  71
  72                 /* anything else should be okay, since we're on *nix.. hopefully */
  73                 $_FILES['uploadedfile']['name'] = str_replace(array(' ', '/', '\\', ':', '*', '?', '"', '<', '>', '|', '\''), '', $_FILES['uploadedfile']['name']);
  74
  75
  76                 /* if the file size is within allowed limits */
  77                 if( ($_FILES['uploadedfile']['size'] > 0) && ($_FILES['uploadedfile']['size'] <= $my_MaxFileSize) ) {
  78
  79                         /* if adding the file will not exceed the maximum allowed total */
  80                         $course_total = dirsize($path);
  81
  82                         if ((($course_total + $_FILES['uploadedfile']['size']) <= ($my_MaxCourseSize + $MaxCourseFloat)) || ($my_MaxCourseSize == AT_COURSESIZE_UNLIMITED)) {
  83
  84                                 /* check if this file exists first */
  85                                 if (file_exists($path.$_FILES['uploadedfile']['name'])) {
  86                                         /* this file already exists, so we want to prompt for override */
  87
  88                                         /* save it somewhere else, temporarily first                    */
  89                                         /* file_name.time ? */
  90                                         $_FILES['uploadedfile']['name'] = substr(time(), -4).'.'.$_FILES['uploadedfile']['name'];
  91
  92                                         $f = array('FILE_EXISTS',
  93                                                                         substr($_FILES['uploadedfile']['name'], 5),
  94                                                                         $_FILES['uploadedfile']['name'],
  95                                                                         $_POST['pathext'],
  96                                                                         $_GET['popup'],
  97                                                                         SEP);
  98                                         $msg->addFeedback($f);
  99                                 }
 100
 101                                 /* copy the file in the directory */
 102                                 $result = move_uploaded_file( $_FILES['uploadedfile']['tmp_name'], $path.$_FILES['uploadedfile']['name'] );
 103
 104                                 if (!$result) {
 105                                         require(AT_INCLUDE_PATH.'header.inc.php');
 106                                         $msg->printErrors('FILE_NOT_SAVED');
 107                                         echo '<a href="tools/filemanager/index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup'] . '">' . _AT('back') . '</a>';
 108                                         require(AT_INCLUDE_PATH.'footer.inc.php');
 109                                         exit;
 110                                 } else {
 111                                         if ($is_zip) {
 112                                                 $f = array('FILE_UPLOADED_ZIP',
 113                                                                                 urlencode($_POST['pathext']),
 114                                                                                 urlencode($_FILES['uploadedfile']['name']),
 115                                                                                 $_GET['popup'],
 116                                                                                 SEP);
 117                                                 $msg->addFeedback($f);
 118
 119                                                 header('Location: index.php?pathext=' . $_POST['pathext'] . SEP . 'popup=' . $_GET['popup']);
 120                                                 exit;
 121                                         } /* else */
 122
 123                                         $msg->addFeedback('FILE_UPLOADED');
 124
 125                                         header('Location: index.php?pathext='.$_POST['pathext'].SEP.'popup='.$_GET['popup']);
 126                                         exit;
 127                                 }
 128                         } else {
 129                                 $msg->addError(array('MAX_STORAGE_EXCEEDED', get_human_size($my_MaxCourseSize)));
 130                                 header('Location: index.php?pathext='.$_POST['pathext'].SEP.'popup='.$_GET['popup']);
 131                                 exit;
 132                         }
 133                 } else {
 134                         $msg->addError(array('FILE_TOO_BIG', get_human_size($my_MaxFileSize)));
 135                         header('Location: index.php?pathext='.$_POST['pathext'].SEP.'popup='.$_GET['popup']);
 136                         exit;
 137                 }
 138         } else {
 139                 $msg->addError('FILE_NOT_SELECTED');
 140                 header('Location: index.php?pathext='.$_POST['pathext'].SEP.'popup='.$_GET['popup']);
 141                 exit;
 142         }
 143 }
 144
 145
 146 ?>