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70 lines
2.1 KiB
70 lines
2.1 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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class DjangoAuthentication(object):
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"""
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Authenticate against djangos own authentication backend
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"""
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def is_authenticated(self, request):
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""" Check, if user is already authenticated.
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From piston docs:
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`is_authenticated`: Will be called when checking for
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authentication. Receives a `request` object, please
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set your `User` object on `request.user`, otherwise
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return False (or something that evaluates to False.)
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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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""" Redirect unauthenticated requests to login form
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From piston docs
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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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loginPage = "%s?%s=%s" % (
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settings.LOGIN_URL,
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REDIRECT_FIELD_NAME,
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urlquote(self.request.get_full_path()),
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)
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return HttpResponseRedirect(loginPage)
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class MultiAuthentication(object):
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""" """
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def __init__(self, authenticators):
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if len(authenticators) ==0:
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raise ValueError("MultiAuthentication needs at least one authenticator in list")
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self.authenticators = authenticators
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self.currentAuthenticator = self.authenticators[0]
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def is_authenticated(self, request):
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""" Try to authenticate against all given authenticators. """
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for authenticator in self.authenticators:
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if authenticator.is_authenticated(request):
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# success!
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self.currentAuthenticator = authenticator
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return True
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return False
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def challenge(self):
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""" Return challenge for current or default authenticator. """
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return self.currentAuthenticator.challenge()
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