diff -r 4f4369e63f5e -r 6abd6e3599f4 web/_exceptions.py
--- a/web/_exceptions.py	Mon Apr 12 14:41:01 2010 +0200
+++ b/web/_exceptions.py	Tue Apr 13 12:19:24 2010 +0200
@@ -40,10 +40,6 @@
         self.status = int(status)
         self.content = content
 
-class ExplicitLogin(AuthenticationError):
-    """raised when a bad connection id is given or when an attempt to establish
-    a connection failed"""
-
 class InvalidSession(CubicWebException):
     """raised when a session id is found but associated session is not found or
     invalid
@@ -59,3 +55,9 @@
     def dumps(self):
         import simplejson
         return simplejson.dumps({'reason': self.reason})
+
+class LogOut(PublishException):
+    """raised to ask for deauthentication of a logged in user"""
+    def __init__(self, url):
+        super(LogOut, self).__init__()
+        self.url = url