feat: custom exceptions instead of direct fastapi.httpexceptions

Resolves #2

src/auth/dependencies.py

@@ -10,18 +10,19 @@ Functions:
  - Functions: Description
 """
 from typing import Annotated, Any
-from fastapi import Depends, HTTPException
+from fastapi import Depends
 
 from src.user.dependencies import user_model_claims_dependency
-
 from src.organisation.dependencies import org_model_query_dependency
 
+from src.auth.exceptions import UnauthorizedException
+
 
 async def org_query_user_claims(org_model: org_model_query_dependency, user_model: user_model_claims_dependency):
 	if user_model in org_model.user_rel:
 		return True
 
-	raise HTTPException(status_code=401, detail="Not authorised")
+	raise UnauthorizedException()
 
 
 org_query_user_claims_dependency = Annotated[dict[str, Any], Depends(org_query_user_claims)]
@@ -31,7 +32,7 @@ async def org_query_root_claims(user_model: user_model_claims_dependency, org_mo
 	if org_model.root_user_id == user_model.id:
 		return True
 
-	raise HTTPException(status_code=401, detail="Not authorised")
+	raise UnauthorizedException()
 
 
 org_query_root_claims_dependency = Annotated[dict[str, Any], Depends(org_query_root_claims)]
@@ -40,8 +41,7 @@ org_query_root_claims_dependency = Annotated[dict[str, Any], Depends(org_query_r
 async def is_super_admin(user_model: user_model_claims_dependency):
 	super_admin_emails = []
 	if user_model.email not in super_admin_emails:
-		raise HTTPException(status_code=401, detail="Not authorised")
-
+		raise UnauthorizedException()
 	return True
 
 

src/auth/exceptions.py

@@ -4,4 +4,16 @@ Module specific exceptions for auth module
 Exceptions:
  - List: Description
  - Exceptions: Description
-"""
+"""
+from typing import Optional
+
+from fastapi import HTTPException, status
+
+
+class UnauthorizedException(HTTPException):
+	def __init__(self, message: Optional[str] = None) -> None:
+		detail = "Not authorized" if not message else message
+		super().__init__(
+			status_code=status.HTTP_401_UNAUTHORIZED,
+			detail=detail,
+		)

src/auth/service.py

@@ -13,9 +13,10 @@ from joserfc.errors import ExpiredTokenError
 from joserfc.jwk import KeySet
 from urllib.request import urlopen
 
-from fastapi import Depends, HTTPException
+from fastapi import Depends
 from fastapi.security import OpenIdConnect
 
+from src.auth.exceptions import UnauthorizedException
 from src.auth.config import auth_settings
 from src.user.service import add_user_to_db
 
@@ -50,8 +51,7 @@ async def get_current_user(oidc_auth_string: oidc_dependency) -> dict[str, Any]:
 	try:
 		claims_requests.validate(token.claims)
 	except ExpiredTokenError:
-		raise HTTPException(status_code=401, detail="Token expired")
-
+		raise UnauthorizedException(message="Token is expired")
 	db_id = await add_user_to_db(token.claims)
 
 	token.claims["db_id"] = db_id