someutils.py

#!ve/bin/python

try:
    from django.shortcuts import render_to_response
    from django.template import RequestContext

    from django.http import HttpResponseNotAllowed

    from django.http import HttpResponse


    from django.conf import settings
    from django.contrib.auth import REDIRECT_FIELD_NAME
    from django.utils.http import urlquote
    from django.http import HttpResponseRedirect

    def match_path(path,config_string):
        config_list = getattr(settings, config_string, [])
        for p in config_list:
            if isinstance(p,str) and path.startswith(p):
                return True
            elif hasattr(p,'match') and p.match(path):
                return True
        return False

    class AuthRequirementMiddleware(object):
        def process_request(self, request):
            path = urlquote(request.get_full_path())           
            if request.user.is_authenticated():
                return None
            
            if match_path(path,'ANONYMOUS_PATHS'):
                return None
            if hasattr(settings,'NON_ANONYMOUS_PATHS') \
                    and not match_path(path,'NON_ANONYMOUS_PATHS'):
                return None

                #from django.shortcuts import get_object_or_404
                #request.coursename = "A&HW 5050 - Special Topics: Vietnam Now!"
                # CUcourse_A&HWY5050_001_2009_2
                #request.course = Group.objects.get_or_create(name='summer09')[0]

            return HttpResponseRedirect('%s?%s=%s' % (
                    settings.LOGIN_URL,
                    REDIRECT_FIELD_NAME,
                    path))

except ImportError:
    pass