kopia lustrzana https://dev.funkwhale.audio/funkwhale/funkwhale
59 wiersze
1.9 KiB
Python
59 wiersze
1.9 KiB
Python
import cryptography
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from django.contrib.auth.models import AnonymousUser
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from rest_framework import authentication
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from rest_framework import exceptions
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from . import actors
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from . import keys
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from . import models
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from . import serializers
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from . import signing
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from . import utils
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class SignatureAuthentication(authentication.BaseAuthentication):
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def authenticate_actor(self, request):
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headers = utils.clean_wsgi_headers(request.META)
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try:
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signature = headers['Signature']
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key_id = keys.get_key_id_from_signature_header(signature)
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except KeyError:
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return
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except ValueError as e:
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raise exceptions.AuthenticationFailed(str(e))
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try:
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actor_data = actors.get_actor_data(key_id)
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except Exception as e:
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raise exceptions.AuthenticationFailed(str(e))
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try:
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public_key = actor_data['publicKey']['publicKeyPem']
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except KeyError:
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raise exceptions.AuthenticationFailed('No public key found')
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serializer = serializers.ActorSerializer(data=actor_data)
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if not serializer.is_valid():
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raise exceptions.AuthenticationFailed('Invalid actor payload: {}'.format(serializer.errors))
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try:
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signing.verify_django(request, public_key.encode('utf-8'))
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except cryptography.exceptions.InvalidSignature:
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raise exceptions.AuthenticationFailed('Invalid signature')
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try:
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return models.Actor.objects.get(url=actor_data['id'])
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except models.Actor.DoesNotExist:
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return serializer.save()
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def authenticate(self, request):
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setattr(request, 'actor', None)
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actor = self.authenticate_actor(request)
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if not actor:
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return
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user = AnonymousUser()
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setattr(request, 'actor', actor)
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return (user, None)
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