From 8343d71aa1dbc36d3f888c7a31163acbfac43292 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=ABl=20Poyet?= <joel.poyet@novaloop.ch>
Date: Thu, 28 Nov 2024 13:05:58 +0100
Subject: [PATCH] fix: receive authorization header independent of lower or
 upper case

---
 local/o365/lib.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/local/o365/lib.php b/local/o365/lib.php
index 565c3dec6..aa078a075 100644
--- a/local/o365/lib.php
+++ b/local/o365/lib.php
@@ -272,8 +272,9 @@ function local_o365_get_auth_token() {
 
     if (function_exists('apache_request_headers')) {
         $headers = apache_request_headers();
-        if (isset($headers['Authorization'])) {
-            $authtoken = substr($headers['Authorization'], 7);
+        $headers = array_change_key_case($headers, CASE_LOWER);
+        if (isset($headers['authorization'])) {
+            $authtoken = substr($headers['authorization'], 7);
         }
     }