docs/mods/_core/modules/install_modules.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
  15 define('AT_INCLUDE_PATH', '../../../include/');
  16 require (AT_INCLUDE_PATH.'vitals.inc.php');
  17 admin_authenticate(AT_ADMIN_PRIV_MODULES);
  18 require(AT_INCLUDE_PATH.'../mods/_core/modules/classes/ModuleListParser.class.php');
  19 require_once(AT_INCLUDE_PATH.'../mods/_core/file_manager/filemanager.inc.php');
  20
  21 // delete all folders and files in $dir
  22 function clear_dir($dir)
  23 {
  24         if ($dh = opendir($dir))
  25         {
  26                 while (($file = readdir($dh)) !== false)
  27                 {
  28                         if (($file == '.') || ($file == '..'))
  29                                 continue;
  30
  31                         if (is_dir($dir.$file))
  32                                 clr_dir($dir.$file);
  33                         else
  34                                 unlink($dir.$file);
  35                 }
  36
  37                 closedir($dh);
  38         }
  39 }
  40
  41 set_time_limit(0);
  42
  43 // check the connection to server update.atutor.ca
  44 $update_server = "http://update.atutor.ca";
  45 $connection_test_file = $update_server . '/index.php';
  46 $connection = @file_get_contents($connection_test_file);
  47
  48 if (!$connection)
  49 {
  50         $msg->addInfo(array('CANNOT_CONNECT_MOD_SERVER'));
  51 }
  52 else
  53 {
  54         // get module list
  55         $module_folder = $update_server . '/modules/';
  56
  57         $module_list_xml = @file_get_contents($module_folder . 'module_list.xml');
  58
  59         if ($module_list_xml)
  60         {
  61                 $moduleListParser = new ModuleListParser();
  62                 $moduleListParser->parse($module_list_xml);
  63                 $module_list_array = $moduleListParser->getParsedArray();
  64         }
  65         // end of get module list
  66
  67         $module_content_folder = AT_CONTENT_DIR . "module/";
  68
  69         if (!is_dir($module_content_folder)) mkdir($module_content_folder);
  70 }
  71 // end of get module list
  72
  73 $module_content_folder = AT_CONTENT_DIR . "module/";
  74
  75 if (!is_dir($module_content_folder)) mkdir($module_content_folder);
  76
  77 // Installation process
  78 if ((isset($_POST['install']) || isset($_POST["download"]) || isset($_POST["version_history"])) && !isset($_POST["id"]))
  79 {
  80         $msg->addError('NO_ITEM_SELECTED');
  81 }
  82 else if (isset($_POST['install']) || isset($_POST["download"]) || isset($_POST["version_history"]) || isset($_POST["install_upload"]))
  83 {
  84         if ($_POST['version_history'])
  85         {
  86                 header('Location: '.AT_BASE_HREF.'mods/_core/modules/version_history.php?id='.$_POST["id"]);
  87                 exit;
  88         }
  89
  90         // install and download
  91         if ($_POST["install_upload"])
  92                 $module_zip_file = $_FILES['modulefile']['tmp_name'];
  93         else
  94                 $module_zip_file = $module_folder . $module_list_array[$_POST["id"]]['history'][0]['location'].$module_list_array[$_POST["id"]]['history'][0]['filename'];
  95
  96         $file_content = file_get_contents($module_zip_file);
  97
  98         if (!$file_content & ($_POST['install'] || $_POST['download']))
  99         {
 100                 $msg->addError('FILE_NOT_EXIST');
 101         }
 102         else
 103         {
 104                 if ($_POST['install'] || $_POST['install_upload'])
 105                 {
 106                         clear_dir($module_content_folder);
 107
 108                         // download zip file from update.atutor.ca and write into module content folder
 109                         if ($_POST["install_upload"])
 110                                 $local_module_zip_file = $module_content_folder . $_FILES['modulefile']['name'];
 111                         else
 112                                 $local_module_zip_file = $module_content_folder. $module_list_array[$_POST["id"]]['history'][0]['filename'];
 113
 114                         $fp = fopen($local_module_zip_file, "w");
 115                         fwrite($fp, $file_content);
 116                         fclose($fp);
 117
 118                         // unzip uploaded file to module's content directory
 119                         include_once(AT_INCLUDE_PATH . '/classes/pclzip.lib.php');
 120
 121                         $archive = new PclZip($local_module_zip_file);
 122
 123                         if ($archive->extract(PCLZIP_OPT_PATH, $module_content_folder) == 0)
 124                         {
 125                     clear_dir($module_content_folder);
 126                     $msg->addError('CANNOT_UNZIP');
 127                   }
 128
 129                   if (!$msg->containsErrors())
 130                   {
 131                                 // find unzip module folder name
 132                                 clearstatcache();
 133
 134                                 if ($dh = opendir($module_content_folder))
 135                                 {
 136                                         while (($module_folder = readdir($dh)) !== false)
 137                                         {
 138                                                 if ($module_folder <> "." && $module_folder <> ".." && is_dir($module_content_folder.$module_folder)) break;
 139                                         }
 140
 141                                         closedir($dh);
 142                                 }
 143
 144                                 if ($module_folder == "." || $module_folder == ".." || !isset($module_folder))
 145                                         $msg->addError('EMPTY_ZIP_FILE');
 146                         }
 147
 148                   // check if the same module exists in "mods" folder. If exists, it has been installed
 149                   if (!$msg->containsErrors())
 150                   {
 151                         if (is_dir("../../../mods/". $module_folder))
 152                                 $msg->addError('ALREADY_INSTALLED');
 153                   }
 154
 155                   if (!$msg->containsErrors())
 156                   {
 157                                 header('Location: module_install_step_1.php?mod='.urlencode($module_folder).SEP.'new=1');
 158                                 exit;
 159                         }
 160                 }
 161
 162                 if ($_POST['download'])
 163                 {
 164                         $id = intval($_POST['id']);
 165
 166                         header('Content-Type: application/x-zip');
 167                         header('Content-transfer-encoding: binary');
 168                         header('Content-Disposition: attachment; filename="'.htmlspecialchars($module_list_array[$id]['history'][0]['filename']).'"');
 169                         header('Expires: 0');
 170                         header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
 171                         header('Pragma: public');
 172                         header('Content-Length: '.strlen($file_content));
 173
 174                         echo $file_content;
 175                         exit;
 176                 }
 177         }
 178 }
 179
 180 if (isset($_POST['mod'])) {
 181         $dir_name = str_replace(array('.','..'), '', $_POST['mod']);
 182
 183         if (isset($_POST['install_manually'])) {
 184                 header('Location: '.AT_BASE_HREF.'mods/_core/modules/module_install_step_2.php?mod='.urlencode($dir_name).SEP.'new=1'.SEP.'mod_in=1');
 185                 exit;
 186         }
 187
 188 } else if (isset($_POST['install_manually'])) {
 189         $msg->addError('NO_ITEM_SELECTED');
 190 }
 191
 192 $module_list = $moduleFactory->getModules(AT_MODULE_STATUS_UNINSTALLED | AT_MODULE_STATUS_MISSING | AT_MODULE_STATUS_PARTIALLY_UNINSTALLED, AT_MODULE_TYPE_EXTRA);
 193 $keys = array_keys($module_list);
 194 natsort($keys);
 195
 196 // check if the module has been installed
 197 $sql = "SELECT * FROM ".TABLE_PREFIX."modules WHERE dir_name = '" . $module_list_array[$i]["history"][0]["install_folder"] . "'";
 198 $result = mysql_query($sql, $db) or die(mysql_error());
 199
 200 require (AT_INCLUDE_PATH.'header.inc.php');
 201
 202 $msg->printAll();
 203
 204 ?>
 205
 206
 207 <script language="JavaScript">
 208 <!--
 209
 210 String.prototype.trim = function() {
 211         return this.replace(/^\s+|\s+$/g,"");
 212 }
 213
 214 // This function validates if and only if a zip file is given
 215 function validate_filename() {
 216   // check file type
 217   var file = document.frm_upload.modulefile.value;
 218   if (!file || file.trim()=='') {
 219     alert('Please give a zip file!');
 220     return false;
 221   }
 222
 223   if(file.slice(file.lastIndexOf(".")).toLowerCase() != '.zip') {
 224     alert('Please upload ZIP file only!');
 225     return false;
 226   }
 227 }
 228
 229 //  End -->
 230 //-->
 231 </script>
 232
 233 <?php
 234 $savant->assign('keys', $keys);
 235 $savant->assign('result', $result);
 236 $savant->assign('module_list', $module_list);
 237 $savant->assign('module_list_array', $module_list_array);
 238 $savant->display('admin/modules/install_modules.tmpl.php');
 239 require (AT_INCLUDE_PATH.'footer.inc.php'); ?>