From cf1b752dab4111e1abbcaa34954284c8a5d5586a Mon Sep 17 00:00:00 2001
From: Chris Branch <cbranch@cloudflare.com>
Date: Mon, 13 Nov 2023 12:24:10 +0000
Subject: [PATCH] Parse URL safe base64 encoding in header values

Errata from #23. Parsing still expected the standard base64 alphabet so
base64url values were rejected.
---
 src/auth/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/auth/mod.rs b/src/auth/mod.rs
index 4226aae..63a74e1 100644
--- a/src/auth/mod.rs
+++ b/src/auth/mod.rs
@@ -24,7 +24,7 @@ pub(crate) fn parse_u32(input: &str) -> Result<u32, std::num::ParseIntError> {
 }
 
 pub(crate) fn base64_char(input: &str) -> IResult<&str, &str> {
-    nom::bytes::complete::is_a("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=")(
+    nom::bytes::complete::is_a("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=")(
         input,
     )
 }