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venv/lib/python3.12/site-packages/allauth/socialaccount/providers/douban/provider.py

@@ -0,0 +1,45 @@
+from allauth.socialaccount.providers.base import ProviderAccount
+from allauth.socialaccount.providers.oauth2.provider import OAuth2Provider
+
+
+class DoubanAccount(ProviderAccount):
+    def get_profile_url(self):
+        return self.account.extra_data.get("alt")
+
+    def get_avatar_url(self):
+        return self.account.extra_data.get("large_avatar")
+
+    def to_str(self):
+        dflt = super(DoubanAccount, self).to_str()
+        return self.account.extra_data.get("name", dflt)
+
+
+class DoubanProvider(OAuth2Provider):
+    id = "douban"
+    name = "Douban"
+    account_class = DoubanAccount
+
+    def extract_uid(self, data):
+        return data["id"]
+
+    def extract_common_fields(self, data):
+        """
+        Extract data from profile json to populate user instance.
+
+        In Douban profile API:
+
+        - id: a digital string, will never change
+        - uid: defaults to id, but can be changed once, used in profile
+          url, like slug
+        - name: display name, can be changed every 30 days
+
+        So we should use `id` as username here, other than `uid`.
+        Also use `name` as `first_name` for displaying purpose.
+        """
+        return {
+            "username": data["id"],
+            "first_name": data.get("name", ""),
+        }
+
+
+provider_classes = [DoubanProvider]

venv/lib/python3.12/site-packages/allauth/socialaccount/providers/douban/tests.py

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+from allauth.socialaccount.tests import OAuth2TestsMixin
+from allauth.tests import MockedResponse, TestCase
+
+from .provider import DoubanProvider
+
+
+class DoubanTests(OAuth2TestsMixin, TestCase):
+    provider_id = DoubanProvider.id
+
+    def get_mocked_response(self):
+        return MockedResponse(
+            200,
+            """
+            {"name": "guoqiao",
+             "created": "2009-02-18 01:07:52",
+             "is_suicide": false,
+             "alt": "http://www.douban.com/people/qguo/",
+             "avatar": "http://img3.douban.com/icon/u3659811-3.jpg",
+             "signature": "",
+             "uid": "qguo",
+             "is_banned": false,
+             "desc": "\u4e0d\u662f\u5f88\u7231\u8bfb\u4e66",
+             "type": "user",
+             "id": "3659811",
+             "large_avatar": "http://img3.douban.com/icon/up3659811-3.jpg"}
+""",
+        )

venv/lib/python3.12/site-packages/allauth/socialaccount/providers/douban/urls.py

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+from allauth.socialaccount.providers.oauth2.urls import default_urlpatterns
+
+from .provider import DoubanProvider
+
+
+urlpatterns = default_urlpatterns(DoubanProvider)

venv/lib/python3.12/site-packages/allauth/socialaccount/providers/douban/views.py

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+import requests
+
+from django.utils.translation import gettext_lazy as _
+
+from allauth.socialaccount.providers.oauth2.views import (
+    OAuth2Adapter,
+    OAuth2CallbackView,
+    OAuth2LoginView,
+)
+
+from ..base import ProviderException
+from .provider import DoubanProvider
+
+
+class DoubanOAuth2Adapter(OAuth2Adapter):
+    provider_id = DoubanProvider.id
+    access_token_url = "https://www.douban.com/service/auth2/token"
+    authorize_url = "https://www.douban.com/service/auth2/auth"
+    profile_url = "https://api.douban.com/v2/user/~me"
+
+    def complete_login(self, request, app, token, **kwargs):
+        headers = {"Authorization": "Bearer %s" % token.token}
+        resp = requests.get(self.profile_url, headers=headers)
+        extra_data = resp.json()
+        """
+        Douban may return data like this:
+
+            {
+                'code': 128,
+                'request': 'GET /v2/user/~me',
+                'msg': 'user_is_locked:53358092'
+            }
+
+        """
+        if "id" not in extra_data:
+            msg = extra_data.get("msg", _("Invalid profile data"))
+            raise ProviderException(msg)
+        return self.get_provider().sociallogin_from_response(request, extra_data)
+
+
+oauth2_login = OAuth2LoginView.adapter_view(DoubanOAuth2Adapter)
+oauth2_callback = OAuth2CallbackView.adapter_view(DoubanOAuth2Adapter)