1 files changed, 34 insertions, 0 deletions
diff --git a/middleware/anon_user.py b/middleware/anon_user.py
new file mode 100644
index 00000000..8422d89b
--- /dev/null
+++ b/middleware/anon_user.py
@@ -0,0 +1,34 @@
+from django.http import HttpResponseRedirect
+from django_authopenid.util import get_next_url
+from django.utils.translation import ugettext as _
+from user_messages import create_message, get_and_delete_messages
+import settings
+import logging
+
+class AnonymousMessageManager(object):
+    def __init__(self,request):
+        self.request = request
+    def create(self,message=''):
+        create_message(self.request,message)  
+    def get_and_delete(self):
+        messages = get_and_delete_messages(self.request)
+        return messages
+
+def dummy_deepcopy(*arg):
+    """this is necessary to prevent deepcopy() on anonymous user object
+    that now contains reference to request, which cannot be deepcopied
+    """
+    return None
+
+class ConnectToSessionMessagesMiddleware(object):
+    def process_request(self, request):
+        if not request.user.is_authenticated():
+            request.user.__deepcopy__ = dummy_deepcopy #plug on deepcopy which may be called by django db "driver"
+            request.user.message_set = AnonymousMessageManager(request) #here request is linked to anon user
+            request.user.get_and_delete_messages = request.user.message_set.get_and_delete
+
+            #also set the first greeting one time per session only
+            if 'greeting_set' not in request.session:
+                request.session['greeting_set'] = True
+                msg = _('first time greeting with %(url)s') % {'url':settings.GREETING_URL}
+                request.user.message_set.create(message=msg)