From 68cb6a4d4ee454a40b58c7d726401ed164287f38 Mon Sep 17 00:00:00 2001
From: Felix Weilbach <felix.weilbach@nextcloud.com>
Date: Fri, 8 Oct 2021 17:00:10 +0200
Subject: [PATCH] Only use basic authentication if needed

Signed-off-by: Felix Weilbach <felix.weilbach@nextcloud.com>
---
 src/libsync/networkjobs.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/libsync/networkjobs.cpp b/src/libsync/networkjobs.cpp
index 763367988177e..878b87fd81830 100644
--- a/src/libsync/networkjobs.cpp
+++ b/src/libsync/networkjobs.cpp
@@ -926,7 +926,10 @@ void DetermineAuthTypeJob::start()
     oldFlowRequired->setIgnoreCredentialFailure(true);
 
     connect(get, &SimpleNetworkJob::finishedSignal, this, [this, get]() {
-        if (get->reply()->error() == QNetworkReply::AuthenticationRequiredError) {
+        const auto reply = get->reply();
+        const auto wwwAuthenticateHeader = reply->rawHeader("WWW-Authenticate");
+        if (reply->error() == QNetworkReply::AuthenticationRequiredError
+            && (wwwAuthenticateHeader.startsWith("Basic") || wwwAuthenticateHeader.startsWith("Bearer"))) {
             _resultGet = Basic;
         } else {
             _resultGet = LoginFlowV2;