fixing static request handler logging exception on 404 (#2099)

* fixing static request handler logging exception when not necessary, adding test to verify exception is gone on 404

* Fixup tests

* Fix tests

* resolve test failure

Co-authored-by: Adam Hopkins <admhpkns@gmail.com>

sanic/mixins/routes.py

@@ -718,16 +718,18 @@ class RouteMixin:
                 return await file(file_path, headers=headers, _range=_range)
         except ContentRangeError:
             raise
-        except Exception:
+        except FileNotFoundError:
-            error_logger.exception(
-                f"File not found: path={file_or_directory}, "
-                f"relative_url={__file_uri__}"
-            )
             raise FileNotFound(
                 "File not found",
                 path=file_or_directory,
                 relative_url=__file_uri__,
             )
+        except Exception:
+            error_logger.exception(
+                f"Exception in static request handler:\
+ path={file_or_directory}, "
+                f"relative_url={__file_uri__}"
+            )
 
     def _register_static(
         self,

tests/test_exceptions.py

@@ -6,13 +6,13 @@ from bs4 import BeautifulSoup
 
 from sanic import Sanic
 from sanic.exceptions import (
-    SanicException,
     Forbidden,
     InvalidUsage,
     NotFound,
+    SanicException,
     ServerError,
     Unauthorized,
-    abort
+    abort,
 )
 from sanic.response import text
 
@@ -231,4 +231,4 @@ def test_sanic_exception(exception_app):
     with warnings.catch_warnings(record=True) as w:
         request, response = exception_app.test_client.get("/old_abort")
     assert response.status == 500
-    assert len(w) == 1 and 'deprecated' in w[0].message.args[0]
+    assert len(w) == 1 and "deprecated" in w[0].message.args[0]

tests/test_request_timeout.py

@@ -1,10 +1,8 @@
 import asyncio
 
-
 import httpcore
 import httpx
 
-
 from sanic_testing.testing import SanicTestClient
 
 from sanic import Sanic

tests/test_static.py

@@ -1,11 +1,16 @@
 import inspect
+import logging
 import os
 
+from collections import Counter
 from pathlib import Path
 from time import gmtime, strftime
 
 import pytest
 
+from sanic import text
+from sanic.exceptions import FileNotFound
+
 
 @pytest.fixture(scope="module")
 def static_file_directory():
@@ -454,3 +459,34 @@ def test_nested_dir(app, static_file_directory):
 
     assert response.status == 200
     assert response.text == "foo\n"
+
+
+def test_stack_trace_on_not_found(app, static_file_directory, caplog):
+    app.static("/static", static_file_directory)
+
+    with caplog.at_level(logging.INFO):
+        _, response = app.test_client.get("/static/non_existing_file.file")
+
+    counter = Counter([r[1] for r in caplog.record_tuples])
+
+    assert response.status == 404
+    assert counter[logging.INFO] == 5
+    assert counter[logging.ERROR] == 1
+
+
+def test_no_stack_trace_on_not_found(app, static_file_directory, caplog):
+    app.static("/static", static_file_directory)
+
+    @app.exception(FileNotFound)
+    async def file_not_found(request, exception):
+        return text(f"No file: {request.path}", status=404)
+
+    with caplog.at_level(logging.INFO):
+        _, response = app.test_client.get("/static/non_existing_file.file")
+
+    counter = Counter([r[1] for r in caplog.record_tuples])
+
+    assert response.status == 404
+    assert counter[logging.INFO] == 5
+    assert logging.ERROR not in counter
+    assert response.text == "No file: /static/non_existing_file.file"