fix UserScopes + minor formatting issues

src/ralph/api/auth/basic.py

@@ -183,7 +183,7 @@ def get_basic_auth_user(
             headers={"WWW-Authenticate": "Basic"},
         )
 
-    user = AuthenticatedUser(scopes=UserScopes(user.scopes), agent=user.agent)
+    user = AuthenticatedUser(scopes=user.scopes, agent=dict(user.agent))
 
     # Restrict access by scopes
     if settings.LRS_RESTRICT_BY_SCOPES:

src/ralph/api/auth/user.py

@@ -3,6 +3,8 @@
 from functools import lru_cache
 from typing import Dict, FrozenSet, Literal
 
+from ralph.conf import settings
+
 from pydantic import BaseModel
 
 Scope = Literal[
@@ -22,7 +24,7 @@
 class UserScopes(FrozenSet[Scope]):
     """Scopes available to users."""
 
-    @lru_cache()
+    @lru_cache(maxsize=1024)
     def is_authorized(self, requested_scope: Scope):
         """Check if the requested scope can be accessed based on user scopes."""
         expanded_scopes = {
@@ -54,6 +56,12 @@ def is_authorized(self, requested_scope: Scope):
 
         return requested_scope in expanded_user_scopes
 
+    @classmethod
+    def __get_validators__(cls):  # noqa: D105
+        def validate(value: FrozenSet[Scope]) -> UserScopes:
+            """Transform value to an instance of UserScopes."""
+            return cls(value)
+        yield validate
 
 class AuthenticatedUser(BaseModel):
     """Pydantic model for user authentication.

src/ralph/conf.py

@@ -221,8 +221,8 @@ def check_restriction_compatibility(cls, values):
             "LRS_RESTRICT_BY_AUTHORITY"
         ):
             raise ConfigurationException(
-                "`LRS_RESTRICT_BY_AUTHORITY` must be set to `True` if using "
-                "`LRS_RESTRICT_BY_SCOPES=True`"
+                "LRS_RESTRICT_BY_AUTHORITY must be set to True if using "
+                "LRS_RESTRICT_BY_SCOPES=True"
             )
         return values
 

tests/api/test_statements_get.py

@@ -84,12 +84,11 @@ def insert_clickhouse_statements(statements):
 
 
 @pytest.fixture(params=["es", "mongo", "clickhouse"])
-# pylint: disable=unused-argument
 def insert_statements_and_monkeypatch_backend(
     request, es, mongo, clickhouse, monkeypatch
 ):
     """(Security) Return a function that inserts statements into each backend."""
-    # pylint: disable=invalid-name
+    # pylint: disable=invalid-name,unused-argument
 
     def _insert_statements_and_monkeypatch_backend(statements):
         """Inserts statements once into each backend."""
@@ -126,8 +125,7 @@ def test_api_statements_get_mine(
     """(Security) Test that the get statements API route, given a "mine=True"
     query parameter returns a list of statements filtered by authority.
     """
-    # pylint: disable=redefined-outer-name
-    # pylint: disable=invalid-name
+    # pylint: disable=redefined-outer-name,invalid-name
 
     # Create two distinct agents
     if ifi == "account_same_home_page":
@@ -770,9 +768,7 @@ def test_api_statements_get_scopes(
     monkeypatch, fs, es, auth_method, scopes, is_authorized
 ):
     """Test that getting statements behaves properly according to user scopes."""
-    # pylint: disable=invalid-name
-    # pylint: disable=too-many-locals
-    # pylint: disable=too-many-arguments
+    # pylint: disable=invalid-name,too-many-locals,too-many-arguments
 
     monkeypatch.setattr(
         "ralph.api.routers.statements.settings.LRS_RESTRICT_BY_SCOPES", True

tests/test_conf.py

@@ -86,8 +86,8 @@ def test_conf_forbidden_scopes_without_authority(monkeypatch):
     with pytest.raises(
         ConfigurationException,
         match=(
-            "`LRS_RESTRICT_BY_AUTHORITY` must be set to `True` if using "
-            "`LRS_RESTRICT_BY_SCOPES=True`"
+            "LRS_RESTRICT_BY_AUTHORITY must be set to True if using "
+            "LRS_RESTRICT_BY_SCOPES=True"
         ),
     ):
         reload(conf)