import os, sys
import site

sys.path = ['<Dir holding Django app>'] + sys.path
site.addsitedir('<Virtualenv root>/lib/python2.6/site-packages')
sys.stdout = sys.stderr
os.environ['DJANGO_SETTINGS_MODULE'] = 'django_site.settings'

from django import db
from django.conf import settings
from django.contrib.sessions.backends.db import SessionStore
from django.contrib.auth.models import User
from django.core.handlers.wsgi import WSGIRequest

def allow_access(environ, host):
    """
    Authentication handler that checks if user is logged in
    """

    # Fake this, allow_access gets a stripped environ
    environ['wsgi.input'] = None

    request = WSGIRequest(environ)
    errors = environ['wsgi.errors']

    try:
        if <Authorized>:
            return True
        else:
            return False
    except Exception as e:
        errors.write('Exception: %s\n' % e)
        return False

    finally:
        db.connection.close()