add client_id to the user_info sent to opa

gso/auth/oidc_policy_helper.py

@@ -11,6 +11,7 @@ FastAPI to ensure secure API development.
 import re
 import ssl
 from collections.abc import AsyncGenerator, Awaitable, Callable, Mapping
+from enum import StrEnum
 from http import HTTPStatus
 from json import JSONDecodeError
 from typing import Any, ClassVar, cast
@@ -92,6 +93,11 @@ class OIDCUserModel(dict):
                 return self.get(key)
             raise error from None
 
+    @property
+    def client_id(self) -> str:
+        """Return the client_id."""
+        return self.get("client_id") or ""
+
     @property
     def user_name(self) -> str:
         """Return the username of the user."""
@@ -182,13 +188,13 @@ class OIDCUser(HTTPBearer):
     resource_server_secret: str
 
     def __init__(
-        self,
-        openid_url: str,
-        resource_server_id: str,
-        resource_server_secret: str,
-        *,
-        auto_error: bool = True,
-        scheme_name: str | None = None,
+            self,
+            openid_url: str,
+            resource_server_id: str,
+            resource_server_secret: str,
+            *,
+            auto_error: bool = True,
+            scheme_name: str | None = None,
     ):
         """Set up OIDCUser with specified OpenID Connect configurations and credentials."""
         super().__init__(auto_error=auto_error)
@@ -198,7 +204,7 @@ class OIDCUser(HTTPBearer):
         self.scheme_name = scheme_name or self.__class__.__name__
 
     async def __call__(  # type: ignore[override]
-        self, request: Request, token: str | None = None
+            self, request: Request, token: str | None = None
     ) -> OIDCUserModel | None:
         """Return the OIDC user from OIDC introspect endpoint.
 
@@ -236,6 +242,8 @@ class OIDCUser(HTTPBearer):
 
             user_info = await self.userinfo(async_request, token)
 
+            user_info['client_id'] = intercepted_token.get("client_id")
+
             logger.debug("OIDCUserModel object.", intercepted_token=intercepted_token)
             return user_info
 
@@ -359,11 +367,11 @@ def _evaluate_decision(decision: OPAResult, *, auto_error: bool, **context: dict
 
 
 def opa_decision(
-    opa_url: str,
-    oidc_security: OIDCUser,
-    *,
-    auto_error: bool = True,
-    opa_kwargs: Mapping[str, str] | None = None,
+        opa_url: str,
+        oidc_security: OIDCUser,
+        *,
+        auto_error: bool = True,
+        opa_kwargs: Mapping[str, str] | None = None,
 ) -> Callable[[Request, OIDCUserModel, AsyncClient], Awaitable[bool | None]]:
     """Create a decision function for Open Policy Agent (OPA) authorization checks.
 
@@ -380,9 +388,9 @@ def opa_decision(
     """
 
     async def _opa_decision(
-        request: Request,
-        user_info: OIDCUserModel = Depends(oidc_security),  # noqa: B008
-        async_request: AsyncClient = Depends(_make_async_client),  # noqa: B008
+            request: Request,
+            user_info: OIDCUserModel = Depends(oidc_security),  # noqa: B008
+            async_request: AsyncClient = Depends(_make_async_client),  # noqa: B008
     ) -> bool | None:
         """Check OIDCUserModel against the OPA policy.