2018-11-11 12:41:48 +00:00
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"""passbook oauth_client Authorization backend"""
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from django.contrib.auth.backends import ModelBackend
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from django.db.models import Q
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from passbook.oauth_client.models import OAuthSource, UserOAuthSourceConnection
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2018-11-16 08:10:35 +00:00
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2018-11-11 12:41:48 +00:00
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class AuthorizedServiceBackend(ModelBackend):
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"Authentication backend for users registered with remote OAuth provider."
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def authenticate(self, request, source=None, identifier=None):
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"Fetch user for a given source by id."
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source_q = Q(source__name=source)
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if isinstance(source, OAuthSource):
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source_q = Q(source=source)
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try:
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access = UserOAuthSourceConnection.objects.filter(
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source_q, identifier=identifier
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).select_related('user')[0]
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except IndexError:
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return None
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else:
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return access.user
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