+import logging
+import settings
+
+from xml.dom.minidom import parse, parseString
+from forum.modules import ui, decorate
+from forum.settings import SVN_REVISION
+from django.contrib.auth.middleware import AuthenticationMiddleware
+from django.core.exceptions import ObjectDoesNotExist
+from django.utils.encoding import smart_str
+
+from base import update_trigger
+
+# Update the user messages
+@decorate.result(AuthenticationMiddleware.process_request, needs_params=True)
+def process_request(result, self, request):
+ # Call the update trigger on every request
+ update_trigger()
+
+ messages_dom = parseString(smart_str(settings.UPDATE_MESSAGES_XML.value))
+ messages = messages_dom.getElementsByTagName('message')
+
+ for message in messages:
+ # Get the SVN Revision
+ try:
+ svn_revision = int(SVN_REVISION.replace('SVN-', ''))
+ except ValueError:
+ # Here we'll have to find another way of getting the SVN revision
+ svn_revision = 0
+
+ message_body = message.getElementsByTagName('body')[0].firstChild.nodeValue
+ message_revision = int(message.getElementsByTagName('revision')[0].firstChild.nodeValue)
+
+ # Add the message to the user messages set only if the Message Revision number is greater than the
+ # current installation SVN Revision number and only if the current user is a super user.
+ if message_revision >= svn_revision and request.user.is_superuser:
+ # We do not want to repeat ourselves. If the message already exists in the message list, we're not going to
+ # add it. That's why first of all we're going the check if it is there.
+ try:
+ # If the message doesn't exist in the RelatedManager ObjectsDoesNotExist is going to be raised.
+ request.user.message_set.all().get(message=message_body)
+ except ObjectDoesNotExist:
+ # Let's create the message.
+ request.user.message_set.create(message=message_body)
+ except:
+ pass
+ return result
\ No newline at end of file