32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
from django.contrib.auth.backends import ModelBackend, UserModel
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from .api import verify_account
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class OAuth2Backend(ModelBackend):
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"""Used to glue OAuth2 and Django User model"""
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# "authenticate() should check the credentials it gets and returns
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# a user object that matches those credentials."
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# arg request is an interface specification, not used in this implementation
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def authenticate(self, request, username=None, password=None, **kwargs):
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"""when username is provided, assume that token is newly obtained and valid"""
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token = kwargs.get("token", None)
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site = kwargs.get("site", None)
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if token is None or site is None:
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return
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mastodon_id = None
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if username is None:
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code, user_data = verify_account(site, token)
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if code == 200 and user_data:
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mastodon_id = user_data["id"]
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if not mastodon_id:
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return None
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try:
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user = UserModel._default_manager.get(
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mastodon_id__iexact=mastodon_id, mastodon_site__iexact=site
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)
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return user if self.user_can_authenticate(user) else None
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except UserModel.DoesNotExist:
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return None
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