From e03a3882bea83d19879b30e312cc1d24520ed540 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5rten=20Nordheim?= <marten.nordheim@qt.io>
Date: Tue, 14 Apr 2020 16:44:42 +0200
Subject: QAuthenticator: Reset the authentication challenge

Both Negotiate and NTLM are conditioned on the 'challenge' being empty
when starting the authentication process. So let's reset it when we
start the authentication process.

Fixes: QTBUG-83370
Change-Id: I41af6d5bcfe3dd980ca2bedce10ceff4f61047ff
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
---
 src/network/kernel/qauthenticator.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/network/kernel/qauthenticator.cpp b/src/network/kernel/qauthenticator.cpp
index 33a30eb1cd..4cc70b8d11 100644
--- a/src/network/kernel/qauthenticator.cpp
+++ b/src/network/kernel/qauthenticator.cpp
@@ -531,6 +531,7 @@ QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMet
                 response = qNtlmPhase3(this, QByteArray::fromBase64(challenge)).toBase64();
                 phase = Done;
             }
+            challenge = "";
         }
 
         break;
@@ -560,6 +561,7 @@ QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMet
             if (!phase3Token.isEmpty()) {
                 response = phase3Token.toBase64();
                 phase = Done;
+                challenge = "";
             }
         }
 
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