__all__ = ["get_id", "require_login", "require_admin", "require_customer"]
 
from pylons.controllers.util import abort, redirect_to, url_for
from pylons import session
from decorator import decorator
 
_group_admin 	= ['admin']
_group_customer = ['admin','customer']
 
def get_id():
	if 'user_id' in session:
		return session['user_id']
	else:
		return None
 
def require_login(func, *args, **kwargs):
    """ Checks to see if user_id is in session """
    if not 'user_id' in session:
        redirect_to('/auth/login')
    return func(*args, **kwargs)
require_login = decorator(require_login)
 
def require_admin(func, *args, **kwargs):
	_test_group(_group_admin)
	return func(*args, **kwargs)
require_admin = decorator(require_admin)
 
def require_customer(func, *args, **kwargs):
	_test_group(_group_customer)
	return func(*args, **kwargs)
require_customer = decorator(require_customer)
 
 
def _test_group(group):
	'Test current acl against a list of acl'
	if not 'user_id' in session or session['user_id'] == None:
		redirect_to('/auth/login')
		return False
	thisacl = session['user_acl'].lower()
	for acl in group:
		if acl == thisacl:
			return True
	redirect_to('/auth/no_access/' + thisacl)
	return False