20 lines
		
	
	
		
			695 B
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			20 lines
		
	
	
		
			695 B
		
	
	
	
		
			Python
		
	
	
	
| from django.contrib.auth.backends import ModelBackend
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| from django.db.models import Q
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| from django.contrib.auth import get_user_model
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| 
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| UserModel = get_user_model()
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| 
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| 
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| class CustomBackend(ModelBackend):
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|     def authenticate(self, request, username=None, password=None, **kwargs):
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|         if username is None:
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|             username = kwargs.get(UserModel.USERNAME_FIELD)
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|         try:
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|             user = UserModel._default_manager.get(
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|                 Q(username=username) | Q(phone=username) | Q(email=username))
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|         except UserModel.DoesNotExist:
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|             return None
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|         else:
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|             if user.check_password(password) and self.user_can_authenticate(user):
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|                 return user
 |