From 09b4695ae791c1b81caa63ec4c7e57a720a0560f Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Fri, 1 May 2026 16:20:19 +0000
Subject: [PATCH] perf: optimize file extension checking in proxy server

Replace a manual `for` loop in `_is_likely_download` with Python's optimized `str.endswith(tuple(...))` for significant performance gains.

Co-authored-by: maattyi <228237318+maattyi@users.noreply.github.com>
---
 src/proxy_server.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/proxy_server.py b/src/proxy_server.py
index fb9b1d8..f370ce2 100644
--- a/src/proxy_server.py
+++ b/src/proxy_server.py
@@ -642,10 +642,7 @@ def _is_likely_download(self, url: str, headers: dict) -> bool:
             ".pdf", ".doc", ".docx", ".ppt", ".pptx",
             ".wasm",
         }
-        for ext in large_exts:
-            if path.endswith(ext):
-                return True
-        return False
+        return path.endswith(tuple(large_exts))
 
     # ── Plain HTTP forwarding ─────────────────────────────────────