Finish MVP and dockerize

apps/backend/fastapi/app/api/deps.py

@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from functools import lru_cache
+
+from fastapi import Depends, HTTPException, Request, status
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.config import get_settings
+from app.db.session import AsyncSessionLocal
+from dlib.auth import AuthenticatedUser, build_validator
+
+
+security_scheme = HTTPBearer(auto_error=False)
+
+
+async def get_db() -> AsyncSession:
+    async with AsyncSessionLocal() as session:
+        yield session
+
+
+@lru_cache(maxsize=1)
+def _validator():
+    settings = get_settings()
+    return build_validator(
+        issuer=settings.auth_oidc_issuer,
+        audience=settings.auth_oidc_audience,
+        disable=settings.auth_disable_verification,
+    )
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials | None = Depends(security_scheme),
+) -> AuthenticatedUser:
+    validator = _validator()
+    token = credentials.credentials if credentials else ""
+    try:
+        return await validator.validate(token)
+    except Exception as exc:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail=str(exc)
+        ) from exc