--- a/lib/http.py	Fri Feb 06 22:48:00 2009 +0200
+++ b/lib/http.py	Fri Feb 06 23:21:24 2009 +0200
@@ -51,7 +51,15 @@
             /foo.cgi/quux/  -> quux/
         """
         
-        return os.path.normpath(self.env['PATH_INFO']).lstrip('/')
+        # the raw PATH_INFO
+        path_info = self.env.get('PATH_INFO')
+        
+        # avoid nasty '.' paths
+        if path_info :
+            return os.path.normpath(path_info).lstrip('/')
+
+        else :
+            return ''
 
 class Response (object) :
     """