feat(providers): Add gitea as provider

Signed-off-by: techknowlogick <techknowlogick@gitea.io>

allauth/socialaccount/providers/gitea/provider.py

@@ -0,0 +1,45 @@
+from allauth.socialaccount.providers.base import ProviderAccount
+from allauth.socialaccount.providers.oauth2.provider import OAuth2Provider
+
+
+class GiteaAccount(ProviderAccount):
+    def get_profile_url(self):
+        return self.account.extra_data.get("html_url")
+
+    def get_avatar_url(self):
+        return self.account.extra_data.get("avatar_url")
+
+    def to_str(self):
+        dflt = super(GiteaAccount, self).to_str()
+        return next(
+            value
+            for value in (
+                self.account.extra_data.get("username", None),
+                self.account.extra_data.get("login", None),
+                dflt,
+            )
+            if value is not None
+        )
+
+
+class GiteaProvider(OAuth2Provider):
+    id = "gitea"
+    name = "Gitea"
+    account_class = GiteaAccount
+
+    def get_default_scope(self):
+        scope = []
+        return scope
+
+    def extract_uid(self, data):
+        return str(data["id"])
+
+    def extract_common_fields(self, data):
+        return dict(
+            email=data.get("email"),
+            username=data.get("login"),
+            name=data.get("name"),
+        )
+
+
+provider_classes = [GiteaProvider]

allauth/socialaccount/providers/gitea/tests.py

@@ -0,0 +1,51 @@
+from allauth.socialaccount.models import SocialAccount
+from allauth.socialaccount.tests import OAuth2TestsMixin
+from allauth.tests import MockedResponse, TestCase
+
+from .provider import GiteaProvider
+
+
+class GiteaTests(OAuth2TestsMixin, TestCase):
+    provider_id = GiteaProvider.id
+
+    def get_mocked_response(self):
+        return MockedResponse(
+            200,
+            """
+            {
+                "id": 4940,
+                "login": "giteauser",
+                "full_name": "",
+                "email": "giteauser@example.com",
+                "avatar_url": "https://gitea.com/user/avatar/giteauser/-1",
+                "language": "en-US",
+                "is_admin": true,
+                "last_login": "2021-08-20T20:07:39Z",
+                "created": "2018-05-03T16:04:34Z",
+                "restricted": false,
+                "active": true,
+                "prohibit_login": false,
+                "location": "",
+                "website": "",
+                "description": "",
+                "visibility": "public",
+                "followers_count": 0,
+                "following_count": 0,
+                "starred_repos_count": 0,
+                "username": "giteauser"
+            }""",
+        )
+
+    def test_account_name_null(self):
+        """String conversion when Gitea responds with empty username"""
+        data = """{
+            "id": 4940,
+            "login": "giteauser",
+            "username": null
+        }"""
+        self.login(MockedResponse(200, data))
+        socialaccount = SocialAccount.objects.get(uid="4940")
+        self.assertIsNone(socialaccount.extra_data.get("name"))
+        account = socialaccount.get_provider_account()
+        self.assertIsNotNone(account.to_str())
+        self.assertEqual(account.to_str(), "giteauser")

allauth/socialaccount/providers/gitea/urls.py

@@ -0,0 +1,6 @@
+from allauth.socialaccount.providers.oauth2.urls import default_urlpatterns
+
+from .provider import GiteaProvider
+
+
+urlpatterns = default_urlpatterns(GiteaProvider)

allauth/socialaccount/providers/gitea/views.py

@@ -0,0 +1,36 @@
+import requests
+
+from allauth.socialaccount import app_settings
+from allauth.socialaccount.providers.gitea.provider import GiteaProvider
+from allauth.socialaccount.providers.oauth2.views import (
+    OAuth2Adapter,
+    OAuth2CallbackView,
+    OAuth2LoginView,
+)
+
+
+class GiteaOAuth2Adapter(OAuth2Adapter):
+    provider_id = GiteaProvider.id
+    settings = app_settings.PROVIDERS.get(provider_id, {})
+
+    if "GITEA_URL" in settings:
+        web_url = settings.get("GITEA_URL").rstrip("/")
+        api_url = "{0}/api/v1".format(web_url)
+    else:
+        web_url = "https://gitea.com"
+        api_url = "https://gitea.com"
+
+    access_token_url = "{0}/login/oauth/access_token".format(web_url)
+    authorize_url = "{0}/login/oauth/authorize".format(web_url)
+    profile_url = "{0}/user".format(api_url)
+
+    def complete_login(self, request, app, token, **kwargs):
+        headers = {"Authorization": "token {}".format(token.token)}
+        resp = requests.get(self.profile_url, headers=headers)
+        resp.raise_for_status()
+        extra_data = resp.json()
+        return self.get_provider().sociallogin_from_response(request, extra_data)
+
+
+oauth2_login = OAuth2LoginView.adapter_view(GiteaOAuth2Adapter)
+oauth2_callback = OAuth2CallbackView.adapter_view(GiteaOAuth2Adapter)

docs/installation.rst

@@ -91,6 +91,7 @@ settings.py (Important - Please note 'django.contrib.sites' is required as INSTA
         'allauth.socialaccount.providers.foursquare',
         'allauth.socialaccount.providers.frontier',
         'allauth.socialaccount.providers.fxa',
+        'allauth.socialaccount.providers.gitea',
         'allauth.socialaccount.providers.github',
         'allauth.socialaccount.providers.gitlab',
         'allauth.socialaccount.providers.globus',

docs/overview.rst

@@ -119,6 +119,8 @@ Supported Providers
 
 - Frontier (OAuth2)
 
+- Gitea (OAuth2)
+
 - Github (OAuth2)
 
 - GitLab (OAuth2)

docs/providers.rst

@@ -807,6 +807,29 @@ Optionally, you can specify the scope to use as follows:
       },
     }
 
+Gitea
+------
+
+App registration (get your key and secret here)
+    https://gitea.com/user/settings/applications
+
+Development callback URL
+    http://127.0.0.1:8000/accounts/github/login/callback/
+
+
+Self-hosted Support
+******************
+
+If you use a self-hosted Gitea instance add your server URL to your Django settings as
+follows:
+
+.. code-block:: python
+
+    SOCIALACCOUNT_PROVIDERS = {
+        'gitea': {
+            'GITEA_URL': 'https://your.gitea-server.domain',
+        }
+    }
 
 GitHub
 ------

test_settings.py

@@ -93,6 +93,7 @@
     "allauth.socialaccount.providers.foursquare",
     "allauth.socialaccount.providers.frontier",
     "allauth.socialaccount.providers.fxa",
+    "allauth.socialaccount.providers.gitea",
     "allauth.socialaccount.providers.github",
     "allauth.socialaccount.providers.gitlab",
     "allauth.socialaccount.providers.globus",