Fixed old files route (#3010)

* fixed files route

* changelog

* formatting

CHANGELOG.md

@@ -12,6 +12,7 @@ No changes to highlight.
 * Fixes bug where png files were not being recognized when uploading images by [@abidlabs](https://github.com/abidlabs) in [PR 3002](https://github.com/gradio-app/gradio/pull/3002) 
 * Fixes bug where temporary uploaded files were not being added to temp sets by [@abidlabs](https://github.com/abidlabs) in [PR 3005](https://github.com/gradio-app/gradio/pull/3005)
 * Fixes issue where markdown support in chatbot breaks older demos [@dawoodkhan82](https://github.com/dawoodkhan82) in [PR 3006](https://github.com/gradio-app/gradio/pull/3006) 
+* Fixes the `/file/` route that was broken in a recent change in [PR 3010](https://github.com/gradio-app/gradio/pull/3010) 
 * Fix bug where the Image component could not serialize image urls by [@freddyaboulton](https://github.com/freddyaboulton) in [PR 2957](https://github.com/gradio-app/gradio/pull/2957)  
 
 ## Documentation Changes:

gradio/routes.py

@@ -289,8 +289,8 @@ class App(FastAPI):
                 )
 
         @app.get("/file/{path:path}", dependencies=[Depends(login_check)])
-        def file_deprecated(path: str, request: fastapi.Request):
-            return file(path, request)
+        async def file_deprecated(path: str, request: fastapi.Request):
+            return await file(path, request)
 
         @app.post("/reset/")
         @app.post("/reset")

test/test_routes.py

@@ -203,6 +203,9 @@ class TestRoutes:
         file_response = client.get(f"/file={created_file}")
         assert file_response.is_success
 
+        backwards_compatible_file_response = client.get(f"/file/{created_file}")
+        assert backwards_compatible_file_response.is_success
+
         file_response_with_full_range = client.get(
             f"/file={created_file}", headers={"Range": "bytes=0-"}
         )