24 lines
		
	
	
		
			867 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			867 B
		
	
	
	
		
			Python
		
	
	
	
	
	
"""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 django.http import HttpRequest
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from passbook.core.models import User
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from passbook.sources.oauth.models import OAuthSource, UserOAuthSourceConnection
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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(
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        self, request: HttpRequest, source: OAuthSource, identifier: str
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    ) -> User:
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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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        access = UserOAuthSourceConnection.objects.filter(
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            source_q, identifier=identifier
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        ).select_related("user")[0]
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        return access.user
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