SimpleSAML_Utilities::redirect: Log warning when URL exceeds 2048 bytes.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2754 44740490-163a-0410-bde0-09ae8108e29a

lib/SimpleSAML/Utilities.php

@@ -526,6 +526,10 @@ class SimpleSAML_Utilities {
 			$code = 302;
 		}
 
+		if (strlen($url) > 2048) {
+			SimpleSAML_Logger::warning('Redirecting to URL longer than 2048 bytes.');
+		}
+
 		/* Set the location header. */
 		header('Location: ' . $url, TRUE, $code);