X-Git-Url: https://delta.frontaccounting.com/gitweb/?a=blobdiff_plain;f=includes%2Fsession.inc;h=73923741b738187335a8baa005930406b8e3459a;hb=ac86042c0f4d7f15e3422d3fefdd6b7f70672129;hp=7cd9d749fe3dcec85b13a5b0f4d43e62fab8f401;hpb=70d1cb82db99550984cf43e0d3c6efb0d3318ae2;p=fa-stable.git

diff --git a/includes/session.inc b/includes/session.inc
index 7cd9d749..73923741 100644
--- a/includes/session.inc
+++ b/includes/session.inc
@@ -18,10 +18,14 @@ class SessionManager
 		session_name($name);
 
 		// Set SSL level
-		$https = isset($secure) ? $secure : isset($_SERVER['HTTPS']);
+		$https = isset($secure) ? $secure : (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
 
 		// Set session cookie options
-		session_set_cookie_params($limit, $path, $domain, $https, true);
+		if (version_compare(PHP_VERSION, '5.2', '<')) // avoid failure on older php versions
+			session_set_cookie_params($limit, $path, $domain, $https);
+		else
+			session_set_cookie_params($limit, $path, $domain, $https, true);
+
 		session_start();
 
 		// Make sure the session hasn't expired, and destroy it if it has
@@ -33,7 +37,7 @@ class SessionManager
 				// Reset session data and regenerate id
 				$_SESSION = array();
 				$_SESSION['IPaddress'] = $_SERVER['REMOTE_ADDR'];
-				$_SESSION['userAgent'] = $_SERVER['HTTP_USER_AGENT'];
+				$_SESSION['userAgent'] = @$_SERVER['HTTP_USER_AGENT'];
 				$this->regenerateSession();
 
 			// Give a 5% chance of the session id changing on any request
@@ -59,7 +63,7 @@ class SessionManager
 		if ($_SESSION['IPaddress'] != $_SERVER['REMOTE_ADDR'])
 			return false;
 
-		if ( $_SESSION['userAgent'] != $_SERVER['HTTP_USER_AGENT'])
+		if ( $_SESSION['userAgent'] != @$_SERVER['HTTP_USER_AGENT'])
 			return false;
 
 		return true;
@@ -77,7 +81,6 @@ class SessionManager
 
 		// Create new session without destroying the old one
 		session_regenerate_id();
- 
 		// Grab current session ID and close both sessions to allow other scripts to use them
 		$newSession = session_id();
 		session_write_close();
@@ -141,6 +144,87 @@ function login_fail()
 	die();
 }
 
+function password_reset_fail()
+{
+	global $path_to_root;
+	
+  echo "<center><br><br><font size='5' color='red'><b>" . _("Incorrect Email") . "<b></font><br><br>";
+  echo "<b>" . _("The email address does not exist in the system.") . "<b><br><br>";
+
+  echo _("If you are not an authorized user, please contact your system administrator to obtain an account to enable you to use the system.");
+  echo "<br><a href='$path_to_root/index.php?reset=1'>" . _("Try again") . "</a>";
+  echo "</center>";
+
+	kill_login();
+	die();
+}
+
+function password_reset_success()
+{
+	global $path_to_root;
+
+  echo "<center><br><br><font size='5' color='green'><b>" . _("New password sent") . "<b></font><br><br>";
+  echo "<b>" . _("A new password has been sent to your mailbox.") . "<b><br><br>";
+
+  echo "<br><a href='$path_to_root/index.php'>" . _("Login here") . "</a>";
+  echo "</center>";
+	
+	kill_login();
+	die();
+}
+
+function check_faillog()
+{
+	global $login_delay, $login_faillog, $login_max_attempts;
+
+	$user = $_SESSION["wa_current_user"]->user;
+
+	if (@$login_delay && (@$login_faillog[$user][$_SERVER['REMOTE_ADDR']] >= @$login_max_attempts) && (time() < $login_faillog[$user]['last'] + $login_delay))
+		return true;
+
+	return false;
+}
+/*
+	Simple brute force attack detection is performed before connection to company database is open. Therefore access counters have to be stored in file.
+	Login attempts counter is created for every new user IP, which partialy prevent DOS attacks.
+*/
+function write_login_filelog($login, $result)
+{
+	global $login_faillog, $login_max_attempts, $path_to_root;
+
+	$user = $_SESSION["wa_current_user"]->user;
+
+	$ip = $_SERVER['REMOTE_ADDR'];
+
+	if (!isset($login_faillog[$user][$ip]) || $result) // init or reset on successfull login
+		$login_faillog[$user] = array($ip => 0, 'last' => '');
+
+ 	if (!$result)
+	{
+		if ($login_faillog[$user][$ip] < @$login_max_attempts) {
+
+ 			$login_faillog[$user][$ip]++;
+ 		} else {
+ 			$login_faillog[$user][$ip] = 0; // comment out to restart counter only after successfull login.
+	 		error_log(sprintf(_("Brute force attack on account '%s' detected. Access for non-logged users temporarily blocked."	), $login));
+	 	}
+ 		$login_faillog[$user]['last'] = time();
+	}
+
+	$msg = "<?php\n";
+	$msg .= "/*\n";
+	$msg .= "Login attempts info.\n";
+	$msg .= "*/\n";
+	$msg .= "\$login_faillog = " .var_export($login_faillog, true). ";\n";
+
+	$filename = $path_to_root."/tmp/faillog.php";
+
+	if ((!file_exists($filename) && is_writable($path_to_root)) || is_writable($filename))
+	{
+		file_put_contents($filename, $msg);
+	}
+}
+
 //----------------------------------------------------------------------------------------
 
 function check_page_security($page_security)
@@ -232,7 +316,7 @@ function html_cleanup(&$parms)
 		if (is_array($value))
 			html_cleanup($parms[$name]);
 		else
-			$parms[$name] = @htmlspecialchars($value, ENT_QUOTES, $_SESSION['language']->encoding);
+			$parms[$name] = @htmlspecialchars($value, ENT_QUOTES, $_SESSION['language']->encoding=='iso-8859-2' ? 'ISO-8859-1' : $_SESSION['language']->encoding);
 	}
 	reset($parms); // needed for direct key() usage later throughout the sources
 }
@@ -258,6 +342,16 @@ if (!isset($path_to_root))
 	$path_to_root = ".";
 }
 
+//----------------------------------------------------------------------------------------
+// set to reasonable values if not set in config file (pre-2.3.12 installations)
+
+if ((!isset($login_delay)) || ($login_delay < 0))
+    $login_delay = 10;
+
+if ((!isset($login_max_attempts)) || ($login_max_attempts < 0))
+    $login_max_attempts = 3; 
+
+
 // Prevent register_globals vulnerability
 if (isset($_GET['path_to_root']) || isset($_POST['path_to_root']))
 	die("Restricted access");
@@ -303,6 +397,9 @@ header("Cache-control: private");
 include_once($path_to_root . "/config.php");
 get_text_init();
 
+if ($login_delay > 0)
+	@include_once($path_to_root . "/tmp/faillog.php");
+
 // Page Initialisation
 if (!isset($_SESSION['language']) || !method_exists($_SESSION['language'], 'set_language')) 
 {
@@ -344,7 +441,7 @@ html_cleanup($_SERVER);
 
 // logout.php is the only page we should have always 
 // accessable regardless of access level and current login status.
-if (strstr($_SERVER['PHP_SELF'], 'logout.php') == false){
+if (!defined('FA_LOGOUT_PHP_FILE')){
 
 	login_timeout();
 
@@ -355,12 +452,40 @@ if (strstr($_SERVER['PHP_SELF'], 'logout.php') == false){
 
 	if (!$_SESSION["wa_current_user"]->logged_in())
 	{
+      if (@$allow_password_reset && !$allow_demo_mode
+        && (isset($_GET['reset']) || isset($_POST['email_entry_field']))) {
+		  if (!isset($_POST["email_entry_field"])) {
+        include($path_to_root . "/access/password_reset.php");
+        exit();
+      }
+      else {
+        if (isset($_POST["company_login_nickname"]) && !isset($_POST["company_login_name"])) {
+          for ($i = 0; $i < count($db_connections); $i++) {
+            if ($db_connections[$i]["name"] == $_POST["company_login_nickname"]) {
+              $_POST["company_login_name"] = $i;
+              unset($_POST["company_login_nickname"]);
+              break 1; // cannot pass variables to break from PHP v5.4 onwards
+            }
+          }
+        }
+        $_succeed = isset($db_connections[$_POST["company_login_name"]]) &&
+          $_SESSION["wa_current_user"]->reset_password($_POST["company_login_name"],
+          $_POST["email_entry_field"]);
+        if ($_succeed)
+        {
+          password_reset_success();
+        }
+
+        password_reset_fail();
+      }
+    }
 		// Show login screen
 		if (!isset($_POST["user_name_entry_field"]) or $_POST["user_name_entry_field"] == "")
 		{
 			// strip ajax marker from uri, to force synchronous page reload
 			$_SESSION['timeout'] = array( 'uri'=>preg_replace('/JsHttpRequest=(?:(\d+)-)?([^&]+)/s',
-					'', @htmlspecialchars($_SERVER['REQUEST_URI'], ENT_QUOTES, $_SESSION['language']->encoding)), 
+					'', @htmlspecialchars($_SERVER['REQUEST_URI'], ENT_QUOTES, $_SESSION['language']->encoding=='iso-8859-2'
+						 ? 'ISO-8859-1' : $_SESSION['language']->encoding)), 
 				'post' => $_POST);
 
 			include($path_to_root . "/access/login.php");
@@ -368,7 +493,15 @@ if (strstr($_SERVER['PHP_SELF'], 'logout.php') == false){
 				$Ajax->activate('_page_body');
 			exit;
 		} else {
-
+			if (isset($_POST["company_login_nickname"]) && !isset($_POST["company_login_name"])) {
+				for ($i = 0; $i < count($db_connections); $i++) {
+					if ($db_connections[$i]["name"] == $_POST["company_login_nickname"]) {
+						$_POST["company_login_name"] = $i;
+						unset($_POST["company_login_nickname"]);
+						break 1; // cannot pass variables to break from PHP v5.4 onwards
+					}
+				}
+			}
 			$succeed = isset($db_connections[$_POST["company_login_name"]]) &&
 				$_SESSION["wa_current_user"]->login($_POST["company_login_name"],
 				$_POST["user_name_entry_field"], $_POST["password"]);
@@ -379,6 +512,14 @@ if (strstr($_SERVER['PHP_SELF'], 'logout.php') == false){
 			// Incorrect password
 				login_fail();
 			}
+			elseif(isset($_SESSION['timeout']) && !$_SESSION['timeout']['post'])
+			{
+				// in case of GET request redirect to avoid confirmation dialog 
+				// after return from menu option
+				header("HTTP/1.1 303 See Other");
+				header("Location: ".$_SESSION['timeout']['uri']);
+				exit();
+			}
 			$lang = &$_SESSION['language'];
 			$lang->set_language($_SESSION['language']->code);
 		}
@@ -397,4 +538,4 @@ $SysPrefs = &$_SESSION['SysPrefs'];
 // We quote all values later with db_escape() before db update.
 $_POST = strip_quotes($_POST);
 
-?>
\ No newline at end of file
+?>