diff --git a/wiki/auth/anonymous_user.py b/wiki/auth/anonymous_user.py
new file mode 100644
index 00000000..abffeda1
--- /dev/null
+++ b/wiki/auth/anonymous_user.py
@@ -0,0 +1,74 @@
+# -*- coding: iso-8859-1 -*-
+"""
+    MoinMoin - CAS authentication
+
+    Jasig CAS (see http://www.jasig.org/cas) authentication module.
+
+    @copyright: 2012 MoinMoin:RichardLiao
+    @license: GNU GPL, see COPYING for details.
+"""
+
+import sys
+import os
+import time, re
+import urlparse
+import urllib, urllib2
+
+from MoinMoin import log
+logging = log.getLogger(__name__)
+
+from MoinMoin.auth import BaseAuth
+from MoinMoin import user, wikiutil
+from MoinMoin.Page import Page
+
+from werkzeug import get_host
+
+class AnonymousAuth(BaseAuth):
+    name = 'AnonymousAuth'
+    login_inputs = []
+    logout_possible = False
+
+    def __init__(self, auth_username="Connexion"):
+        BaseAuth.__init__(self)
+        self.auth_username = auth_username
+
+    def can_view(self, request):
+        raise NotImplementedError
+
+    def request(self, request, user_obj, **kw):
+
+        # authenticated user
+        if user_obj and user_obj.valid:
+            return user_obj, True
+
+
+        # anonymous
+        if self.can_view(request):
+            if user_obj and user_obj.valid:
+                return user_obj, True
+            u = user.User(request, auth_username=self.auth_username, auth_method=self.name)
+            u.valid = True
+            u.name = self.auth_username
+        elif user_obj and user_obj.valid:
+            u = user.User(request, auth_method=self.name)
+            u.valid = False
+        else:
+            u = user_obj
+
+        action = request.args.get("action", "")
+        p = urlparse.urlparse(request.url)
+        # Impossible to edit preferences
+        if u and u.valid and action == "userprefs":
+            url = urlparse.urlunparse(('https', p.netloc, p.path, "", "", ""))
+            request.http_redirect(url)
+        # If reach anonymous user personnal page, redirect to referer with action=login
+        if p.path == "/%s" % self.auth_username and action != "login":
+            referer_p = urlparse.urlparse(request.http_referer)
+            if get_host(request.environ) == referer_p.netloc:
+                referer_url = urlparse.urlunparse(('https', p.netloc, referer_p.path, "", "", ""))
+                request.http_redirect(referer_url + "?action=login")
+            else:
+                request.http_redirect("https://"+ p.netloc + "/?action=login")
+
+        return u, True
+