Fix wrong status code and message on responses when handling HTTPExceptions (#570)

* Add possible fallback to response status code in error handling

* Fix message attribute setting when handling HTTPExceptions

* Add CHANGELOG.rst entry

---------

Co-authored-by: Peter Doggart <10991724+peter-doggart@users.noreply.github.com>

Author: lkk7

CHANGELOG.rst

@@ -36,6 +36,7 @@ Bug Fixes
 
    * Fixing werkzeug 3 deprecated version import. Import is replaced by new style version check with importlib (#573) [Ryu-CZ]
    * Fixing flask 3.0+ compatibility of `ModuleNotFoundError: No module named 'flask.scaffold'` Import error. (#567) [Ryu-CZ]
+   * Fix wrong status code and message on responses when handling `HTTPExceptions` (#569) [lkk7]
 
 
 .. _section-1.2.0:

flask_restx/api.py

@@ -718,9 +718,13 @@ def handle_error(self, e):
             got_request_exception.send(current_app._get_current_object(), exception=e)
 
             if isinstance(e, HTTPException):
-                code = HTTPStatus(e.code)
+                code = None
+                if e.code is not None:
+                    code = HTTPStatus(e.code)
+                elif e.response is not None:
+                    code = HTTPStatus(e.response.status_code)
                 if include_message_in_response:
-                    default_data = {"message": getattr(e, "description", code.phrase)}
+                    default_data = {"message": e.description or code.phrase}
                 headers = e.get_response().headers
             elif self._default_error_handler:
                 result = self._default_error_handler(e)

tests/test_errors.py

@@ -6,7 +6,14 @@
 from flask import Blueprint, abort
 from flask.signals import got_request_exception
 
-from werkzeug.exceptions import HTTPException, BadRequest, NotFound, Aborter
+from werkzeug import Response
+from werkzeug.exceptions import (
+    Aborter,
+    BadRequest,
+    HTTPException,
+    NotFound,
+    Unauthorized,
+)
 from werkzeug.http import quote_etag, unquote_etag
 
 import flask_restx as restx
@@ -645,6 +652,16 @@ def test_handle_error_with_code(self, app):
         assert response.status_code == 500
         assert json.loads(response.data.decode()) == {"foo": "bar"}
 
+    def test_handle_error_http_exception_response_code_only(self, app):
+        api = restx.Api(app)
+        http_exception = HTTPException(response=Response(status=401))
+
+        response = api.handle_error(http_exception)
+        assert response.status_code == 401
+        assert json.loads(response.data.decode()) == {
+            "message": "Unauthorized",
+        }
+
     def test_errorhandler_swagger_doc(self, app, client):
         api = restx.Api(app)