File 295-overagreesive-escape_url.patch of Package python-mistune

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File 295-overagreesive-escape_url.patch of Package python-mistune (Revision 5e233adf0afb73b8486f15a9bf0800bb)

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From fc2cd53d7698e432ab5b250ffac53458263a49e2 Mon Sep 17 00:00:00 2001
From: Jeff Dairiki <dairiki@dairiki.org>
Date: Thu, 6 Jan 2022 09:30:32 -0800
Subject: [PATCH] Make mistune.util.escape_url less aggressive
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This adds ';', '!', and '$' to the set of characters which will be
passed unmolested by escape_url.  These are all in RFC 3986 reserved
character list — that is to say: escaping these may change the meaning
of a URL.
---
 mistune/util.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mistune/util.py b/mistune/util.py
index 192f6ef..f99fe37 100644
--- a/mistune/util.py
+++ b/mistune/util.py
@@ -20,7 +20,12 @@ def escape(s, quote=True):
 
 
 def escape_url(link):
-    safe = '/#:()*?=%@+,&'
+    safe = (
+        ':/?#@'           # gen-delims - '[]' (rfc3986)
+        '!$&()*+,;='      # sub-delims - "'" (rfc3986)
+        '%'               # leave already-encoded octets alone
+    )
+
     if html is None:
         return quote(link.encode('utf-8'), safe=safe)
     return html.escape(quote(html.unescape(link), safe=safe))

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File 295-overagreesive-escape_url.patch of Package python-mistune (Revision 5e233adf0afb73b8486f15a9bf0800bb)

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