add endpoints authorize, callback

sapphire/users/api/service.py

@@ -1,20 +1,18 @@
 import fastapi
 from facet import ServiceMixin
-
 from sapphire.common.api.service import APIService
 from sapphire.users.__version__ import __version__
 from sapphire.users.database.service import UsersDatabaseService
 from sapphire.users.oauth2.habr import OAuth2HabrBackend
 from sapphire.users.settings import UsersSettings
-
 from .router import router
 
 
 class UsersAPIService(APIService):
     def __init__(
             self,
             database: UsersDatabaseService,
-            habr_oauth2: OAuth2HabrBackend, 
+            habr_oauth2: OAuth2HabrBackend,
             version: str = "0.0.0",
             port: int = 8000,
     ):

sapphire/users/api/v1beta/oauth2/habr.py

@@ -7,10 +7,15 @@
 
 @router.get("/authorize", response_class=RedirectResponse)
 async def authorize(request: fastapi.Request):
+    habr_oauth2 = request.app.habr_oauth2
     redirect_url = yarl.URL(str(request.url)).parent / "callback"
+    authorisation_url = habr_oauth2.get_authorization_url(redirect_url=str(redirect_url))
+    return RedirectResponse(url=authorisation_url)
 
-    # Get OAuth2 backend from request.app.habr_oauth2
 
 @router.get("/callback")
-async def callback():
-    pass
+async def callback(request: fastapi.Request):
+    habr_oauth2 = request.app.habr_oauth2
+    token = await habr_oauth2.get_token()
+    user_info = await habr_oauth2.get_user_info(token=token)
+    return user_info

sapphire/users/oauth2/habr.py

@@ -1,8 +1,6 @@
 import aiohttp
 import pydantic
-
 from sapphire.users.settings import UsersSettings
-
 from .base import OAuth2BaseBackend
 
 
@@ -33,6 +31,7 @@ async def get_user_info(self, token: str) -> HabrUser:
             is_email_confirmed=(data["is_email_confirmed"] == "1"),
         )
 
+
 def get_oauth2_backend(settings: UsersSettings) -> OAuth2HabrBackend:
     return OAuth2HabrBackend(
         client_id=settings.habr_oauth2_client_id,

sapphire/users/settings.py

@@ -4,9 +4,7 @@
 
 class UsersSettings(BaseSettings):
     port: conint(ge=1, le=65535) = 8000
-
     db_dsn: AnyUrl = AnyUrl("sqlite+aiosqlite:///users.sqlite3")
-
     habr_oauth2_client_id: str
     habr_oauth2_client_secret: str