check for valid sessions in auth modules

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@372 44740490-163a-0410-bde0-09ae8108e29a

www/auth/login-admin.php

@@ -19,6 +19,8 @@ $error = null;
 $attributes = array();
 $username = null;
 
+if (empty($session))
+	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
 
 /* Load the RelayState argument. The RelayState argument contains the address
  * we should redirect the user to after a successful authentication.

www/auth/login-feide.php

@@ -40,6 +40,11 @@ SimpleSAML_Logger::info('AUTH - ldap-feide: Accessing auth endpoint login-feide'
 $error = null;
 $attributes = array();
 
+
+if (empty($session))
+	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
+
+
 /*
  * Load the RelayState argument. The RelayState argument contains the address
  * we should redirect the user to after a successful authentication.

www/auth/login-ldapmulti.php

@@ -19,6 +19,8 @@ require_once($ldapconfigfile);
 
 SimpleSAML_Logger::info('AUTH - ldap-multi: Accessing auth endpoint login-ldapmulti');
 
+if (empty($session))
+	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
 
 $error = null;
 $attributes = array();

www/auth/login-radius.php

@@ -18,6 +18,9 @@ SimpleSAML_Logger::info('AUTH - radius: Accessing auth endpoint login');
 $error = null;
 $attributes = array();
 
+if (empty($session))
+	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
+
 /* Load the RelayState argument. The RelayState argument contains the address
  * we should redirect the user to after a successful authentication.
  */

www/auth/login.php

@@ -21,6 +21,8 @@ $error = null;
 $attributes = array();
 $username = null;
 
+if (empty($session))
+	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
 
 /* Load the RelayState argument. The RelayState argument contains the address
  * we should redirect the user to after a successful authentication.