From a4ac1fa044a17346f7b00989ba1aedee3d85f55a Mon Sep 17 00:00:00 2001
From: Ryan Barrett <git@ryanb.org>
Date: Tue, 15 Aug 2023 08:09:25 -0700
Subject: [PATCH] update util.base_url to handle python 3.9.17 change to
 urllib.parse.urlsplit

https://docs.python.org/release/3.9.17/whatsnew/changelog.html#changelog

> gh-102153: urllib.parse.urlsplit() now strips leading C0 control and space characters following the specification for URLs defined by WHATWG in response to CVE-2023-24329. Patch by Illia Volochii.

https://github.com/python/cpython/issues/102153
---
 util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util.py b/util.py
index dd884cd..7f0cd14 100644
--- a/util.py
+++ b/util.py
@@ -586,7 +586,7 @@ def base_url(url):
   Args:
     url: string
   """
-  return urllib.parse.urljoin(url, ' ')[:-1] if url else None
+  return urllib.parse.urljoin(url, 'x')[:-1] if url else None
 
 
 def is_web(url):