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76 lines
2.5 KiB
76 lines
2.5 KiB
# This file is part of k4ever, a point-of-sale system
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# Contact............ <k4ever@lists.someserver.de>
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# Website............ http://k4ever.someserver.de/
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# Bug tracker........ http://k4ever.someserver.de/report
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#
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# Licensed under GNU Affero General Public License v3 or later
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from django.conf import settings
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from django.contrib.auth import REDIRECT_FIELD_NAME
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from django.http import HttpResponse, HttpResponseRedirect
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from django.utils.http import urlquote
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# taken and modified from
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# https://bitbucket.org/yml/django-piston/src/dfb826a31ca8/piston/authentication.py
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class DjangoAuthentication(object):
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"""
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Django authentication.
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"""
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def __init__(self, login_url=None, redirect_field_name=REDIRECT_FIELD_NAME):
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if not login_url:
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login_url = settings.LOGIN_URL
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self.login_url = login_url
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self.redirect_field_name = redirect_field_name
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self.request = None
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def is_authenticated(self, request):
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"""
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This method call the `is_authenticated` method of django
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User in django.contrib.auth.models.
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`is_authenticated`: Will be called when checking for
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authentication. It returns True if the user is authenticated
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False otherwise.
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"""
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self.request = request
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return request.user.is_authenticated()
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def challenge(self):
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"""
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`challenge`: In cases where `is_authenticated` returns
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False, the result of this method will be returned.
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This will usually be a `HttpResponse` object with
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some kind of challenge headers and 401 code on it.
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"""
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path = urlquote(self.request.get_full_path())
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tup = self.login_url, self.redirect_field_name, path
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return HttpResponseRedirect('%s?%s=%s' %tup)
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# taken from
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# http://staer.github.com/2011/01/21/piston-multi-auth.html
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class MultiAuthentication(object):
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""" Authenticated Django-Piston against multiple types of authentication """
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def __init__(self, auth_types):
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""" Takes a list of authenication objects to try against, the default
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authentication type to try is the first in the list. """
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self.auth_types = auth_types
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self.selected_auth = auth_types[0]
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def is_authenticated(self, request):
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""" Try each authentication type in order and use the first that succeeds """
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authenticated = False
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for auth in self.auth_types:
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authenticated = auth.is_authenticated(request)
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if authenticated:
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selected_auth = auth
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break
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return authenticated
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def challenge(self):
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""" Return the challenge for whatever the selected auth type is (or the default
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auth type which is the first in the list)"""
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return self.selected_auth.challenge()
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