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($page_security))
  63         {
  64                 // no_menu parameter guess here is ugly hack, but works for now.
  65                 // Better solution is to use global switch for menu, set before
  66                 // session.inc inclusion.
  67                 page(_("Access denied"), strpos($_SERVER['PHP_SELF'], '/view/'));
  68
  69                 echo "<center><br><br><br><b>";
  70                 echo _("The security settings on your account do not permit you to access this function");
  71                 echo "</b>";
  72                 echo "<br><br><br><br></center>";
  73                 end_page();
  74                 //kill_login();
  75                 exit;
  76         }
  77 }
  78
  79 //-----------------------------------------------------------------------------
  80 //      Removing magic quotes from nested arrays/variables
  81 //
  82 function strip_quotes($data)
  83 {
  84         if(get_magic_quotes_gpc()) {
  85                 if(is_array($data)) {
  86                         foreach($data as $k => $v) {
  87                                 $data[$k] = strip_quotes($data[$k]);
  88                         }
  89                 } else
  90                         return stripslashes($data);
  91         }
  92         return $data;
  93 }
  94
  95 //============================================================================
  96 //
  97 //
  98 function login_timeout()
  99 {
 100         if ($_SESSION["wa_current_user"]->logged) {
 101                 $tout = $_SESSION["wa_current_user"]->timeout;
 102                 if ($tout && (time() > $_SESSION["wa_current_user"]->last_act + $tout))
 103                 {
 104                         $_SESSION["wa_current_user"]->logged = false;
 105                 }
 106                 $_SESSION["wa_current_user"]->last_act = time();
 107         }
 108 }
 109 //============================================================================
 110 if (!isset($path_to_root))
 111 {
 112         $path_to_root = ".";
 113 }
 114
 115 // Prevent register_globals vulnerability
 116 if (isset($_GET['path_to_root']) || isset($_POST['path_to_root']))
 117         die("Restricted access");
 118
 119 include_once($path_to_root . "/frontaccounting.php");
 120 include_once($path_to_root . "/includes/current_user.inc");
 121 include_once($path_to_root . "/includes/lang/language.php");
 122 include_once($path_to_root . "/config_db.php");
 123 include_once($path_to_root . "/includes/ajax.inc");
 124 include_once($path_to_root . "/includes/ui/ui_msgs.inc");
 125
 126 /*
 127         Uncomment the setting below when using FA on shared hosting
 128         to avoid unexpeced session timeouts.
 129         Make sure this directory exists and is writable!
 130 */
 131 //ini_set('session.save_path', dirname(__FILE__).'/../tmp/');
 132
 133 ini_set('session.gc_maxlifetime', 36000); // 10hrs
 134
 135 session_name('FrontAccounting');
 136 session_start();
 137 // this is to fix the "back-do-you-want-to-refresh" issue - thanx PHPFreaks
 138 header("Cache-control: private");
 139
 140 get_text::init();
 141
 142 // Page Initialisation
 143 if (!isset($_SESSION['languages']))
 144 {
 145         language::load_languages(); // sets also default $_SESSION['language']
 146 }
 147
 148 language::set_language($_SESSION['language']->code);
 149
 150 // include $Hooks object if locale file exists
 151 if(@include_once($path_to_root . "/lang/".$_SESSION['language']->code."/locale.inc"))
 152 {
 153         $Hooks = new Hooks();
 154 }
 155
 156 include_once($path_to_root . "/config.php");
 157 include_once($path_to_root . "/includes/main.inc");
 158
 159 // Ajax communication object
 160 $Ajax =& new Ajax();
 161
 162 // js/php validation rules container
 163 $Validate = array();
 164 // bindings for editors
 165 $Editors = array();
 166 // page help. Currently help for function keys.
 167 $Pagehelp = array();
 168
 169 // intercept all output to destroy it in case of ajax call
 170 register_shutdown_function('end_flush');
 171 ob_start('output_html',0);
 172
 173 // colect all error msgs
 174 set_error_handler('error_handler' /*, errtypes */);
 175
 176 if (!isset($_SESSION["wa_current_user"]))
 177         $_SESSION["wa_current_user"] = new current_user();
 178
 179 set_global_connection();
 180
 181 login_timeout();
 182
 183 if (!$_SESSION["wa_current_user"]->logged_in())
 184 {
 185         // Show login screen
 186         if (!isset($_POST["user_name_entry_field"]) or $_POST["user_name_entry_field"] == "")
 187         {
 188                 if (strstr($_SERVER['PHP_SELF'], 'timeout.php') == false)
 189                         $_SESSION['timeout'] = array( 'uri'=> $_SERVER['REQUEST_URI'],
 190                                 'post' => $_POST);
 191
 192                 if (!in_ajax()) {
 193                         include($path_to_root . "/access/login.php");
 194                 } else {
 195                         // ajax update of current page elements - open login window in popup
 196                         // to not interfere with ajaxified page.
 197                         $Ajax->popup($path_to_root . "/access/timeout.php");
 198                 }
 199                 exit;
 200         } else {
 201                 $succeed = $_SESSION["wa_current_user"]->login($_POST["company_login_name"],
 202                         $_POST["user_name_entry_field"],
 203                         md5($_POST["password"]));
 204                 // select full vs fallback ui mode on login
 205                 $_SESSION["wa_current_user"]->ui_mode = $_POST['ui_mode'];
 206                 if (!$succeed)
 207                 {
 208                         // Incorrect password
 209                         login_fail();
 210                 }
 211                 $lang = $_SESSION['language'];
 212                 language::set_language($_SESSION['language']->code);
 213         }
 214 }
 215
 216 if (!isset($_SESSION["App"])) {
 217         $_SESSION["App"] = new front_accounting();
 218         $_SESSION["App"]->init();
 219 }
 220
 221 // Run with debugging messages for the system administrator(s) but not anyone else
 222 /*if (in_array(15, $security_groups[$_SESSION["AccessLevel"]])) {
 223         $debug = 1;
 224 } else {
 225         $debug = 0;
 226 }*/
 227
 228 //----------------------------------------------------------------------------------------
 229
 230 check_page_security($page_security);
 231
 232 // POST vars cleanup needed for direct reuse.
 233 // We quote all values later with db_escape() before db update.
 234         $_POST = strip_quotes($_POST);
 235
 236 ?>