includes/session.inc

   1 <?php
   2 /**********************************************************************
   3         Copyright (C) FrontAccounting, LLC.
   4         Released under the terms of the GNU General Public License, GPL,
   5         as published by the Free Software Foundation, either version 3
   6         of the License, or (at your option) any later version.
   7         This program is distributed in the hope that it will be useful,
   8         but WITHOUT ANY WARRANTY; without even the implied warranty of
   9         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  10         See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
  11 ***********************************************************************/
  12 function output_html($text)
  13 {
  14         global $before_box, $Ajax, $messages;
  15         // Fatal errors are not send to error_handler,
  16         // so we must check the output
  17         if ($text && preg_match('/\bFatal error(<.*?>)?:(.*)/i', $text, $m)) {
  18                 $Ajax->aCommands = array();  // Don't update page via ajax on errors
  19                 $text = preg_replace('/\bFatal error(<.*?>)?:(.*)/i','', $text);
  20                 $messages[] = array(E_ERROR, $m[2], null, null);
  21         }
  22         $Ajax->run();
  23         return  in_ajax() ? fmt_errors() : ($before_box.fmt_errors().$text);
  24 }
  25 //----------------------------------------------------------------------------------------
  26
  27 function kill_login()
  28 {
  29         session_unset();
  30         session_destroy();
  31 }
  32 //----------------------------------------------------------------------------------------
  33
  34 function login_fail()
  35 {
  36         header("HTTP/1.1 401 Authorization Required");
  37         echo "<center><br><br><font size='5' color='red'><b>" . _("Incorrect Password") . "<b></font><br><br>";
  38         echo "<b>" . _("The user and password combination is not valid for the system.") . "<b><br><br>";
  39
  40         echo _("If you are not an authorized user, please contact your system administrator to obtain an account to enable you to use the system.");
  41         echo "<br><a href='javascript:history.go(-1)'>" . _("Back") . "</a>";
  42         echo "</center>";
  43
  44         kill_login();
  45         die();
  46 }
  47
  48 //----------------------------------------------------------------------------------------
  49
  50 function check_page_security($page_security)
  51 {
  52         if (!$_SESSION["wa_current_user"]->check_user_access())
  53         {
  54                 echo "<br><br><br><center>";
  55                 echo "<b>" . _("Security settings have not been defined for your user account.");
  56                 echo "<br>" . _("Please contact your system administrator.") . "</b>";
  57
  58                 kill_login();
  59                 exit;
  60         }
  61
  62         if (!$_SESSION["wa_current_user"]->can_access_page($page_security))
  63         {
  64                 page(_("Access denied"));
  65                 echo "<center><br><br><br><b>";
  66                 echo _("The security settings on your account do not permit you to access this function");
  67                 echo "</b>";
  68                 echo "<br><br><br><br></center>";
  69                 end_page();
  70                 //kill_login();
  71                 exit;
  72         }
  73 }
  74
  75 //-----------------------------------------------------------------------------
  76 //      Removing magic quotes from nested arrays/variables
  77 //
  78 function strip_quotes($data)
  79 {
  80         if(get_magic_quotes_gpc()) {
  81                 if(is_array($data)) {
  82                         foreach($data as $k => $v) {
  83                                 $data[$k] = strip_quotes($data[$k]);
  84                         }
  85                 } else
  86                         return stripslashes($data);
  87         }
  88         return $data;
  89 }
  90
  91 //============================================================================
  92 if (!isset($path_to_root))
  93 {
  94         $path_to_root = ".";
  95 }
  96
  97 // Prevent register_globals vulnerability
  98 if (isset($_GET['path_to_root']) || isset($_POST['path_to_root']))
  99         die("Restricted access");
 100
 101 include_once($path_to_root . "/frontaccounting.php");
 102 include_once($path_to_root . "/includes/current_user.inc");
 103 include_once($path_to_root . "/includes/lang/language.php");
 104 include_once($path_to_root . "/config_db.php");
 105 include_once($path_to_root . "/includes/ajax.inc");
 106
 107 /*
 108         Make sure this directory exists and is writable!
 109 //      $session_save_path = dirname(__FILE__).'/../tmp/';
 110 */
 111
 112 session_name('FrontAccounting');
 113 session_start();
 114 // this is to fix the "back-do-you-want-to-refresh" issue - thanx PHPFreaks
 115 header("Cache-control: private");
 116
 117 // Page Initialisation
 118 if (!isset($_SESSION['languages']))
 119 {
 120         language::load_languages();
 121 }
 122
 123 $lang = $_SESSION['language'];
 124
 125 // get_text support
 126 get_text::init();
 127 get_text::set_language($lang->code, $lang->encoding);
 128 //get_text::add_domain("wa", $path_to_root . "/lang");
 129 get_text::add_domain($lang->code, $path_to_root . "/lang");
 130
 131 // Necessary for ajax calls. Due to bug in php 4.3.10 for this
 132 // version set globally in php.ini
 133 ini_set('default_charset', $_SESSION['language']->encoding);
 134
 135 include_once($path_to_root . "/config.php");
 136
 137 $Ajax =& new Ajax();
 138
 139 include_once($path_to_root . "/includes/main.inc");
 140
 141 include_once($path_to_root . "/includes/ui/ui_msgs.inc");
 142
 143 // intercept all output to destroy it in case of ajax call
 144 register_shutdown_function('ob_end_flush');
 145 ob_start('output_html',0);
 146
 147 // colect all error msgs
 148 set_error_handler('error_handler' /*, errtypes */);
 149
 150 if (!isset($_SESSION["wa_current_user"]))
 151         $_SESSION["wa_current_user"] = new current_user();
 152
 153 if (!$_SESSION["wa_current_user"]->logged_in())
 154 {
 155         // Show login screen
 156         if (!isset($_POST["user_name_entry_field"]) or $_POST["user_name_entry_field"] == "")
 157         {
 158                 include($path_to_root . "/access/login.php");
 159                 $Ajax->redirect($path_to_root . "/access/login.php");
 160                 exit;
 161         } else {
 162                 $succeed = $_SESSION["wa_current_user"]->login($_POST["company_login_name"],
 163                         $_POST["user_name_entry_field"],
 164                         md5($_POST["password"]));
 165                 // select full vs fallback ui mode on login
 166                 $_SESSION["wa_current_user"]->ui_mode = $_POST['ui_mode'];
 167                 if (!$succeed)
 168                 {
 169                         // Incorrect password
 170                         login_fail();
 171                 }
 172                 $lang = $_SESSION['language'];
 173                 get_text::set_language($lang->code, $lang->encoding);
 174         }
 175 }
 176
 177
 178 // Run with debugging messages for the system administrator(s) but not anyone else
 179 /*if (in_array(15, $security_groups[$_SESSION["AccessLevel"]])) {
 180         $debug = 1;
 181 } else {
 182         $debug = 0;
 183 }*/
 184
 185 //----------------------------------------------------------------------------------------
 186
 187 check_page_security($page_security);
 188
 189 // POST vars cleanup needed for direct reuse.
 190 // We quote all values later with db_escape() before db update.
 191         $_POST = strip_quotes($_POST);
 192
 193 ?>