Only use basic authentication if needed

Signed-off-by: Felix Weilbach <felix.weilbach@nextcloud.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/libsync/networkjobs.cpp b/src/libsync/networkjobs.cpp
index 2800af0d6..96739c906 100644
--- a/src/libsync/networkjobs.cpp
+++ b/src/libsync/networkjobs.cpp
@@ -966,7 +966,10 @@ 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;