Don't fetch credentials from cache following a failed proxy authentication

Add variable to QAuthenticatorPrivate for tracking failure
Track authentication success/failure in http proxy socket engine
Track authentication success/failure in http connection channel

Task-number: QTBUG-22875
Change-Id: Id5d39e839428271ad687e9da12fbbdea9c478f4f
Reviewed-by: Peter Hartmann <peter.hartmann@nokia.com>
(cherry-picked from d24aad82896addce88f1ffb4040560e406acf083)

2 files changed, 18 insertions, 3 deletions

diff --git a/src/network/socket/qhttpsocketengine.cpp b/src/network/socket/qhttpsocketengine.cpp
index b62bc05..c582c57 100644
--- a/src/network/socket/qhttpsocketengine.cpp
+++ b/src/network/socket/qhttpsocketengine.cpp
@@ -136,6 +136,8 @@ bool QHttpSocketEngine::connectInternal()
 {
     Q_D(QHttpSocketEngine);
 
+    d->credentialsSent = false;
+
     // If the handshake is done, enter ConnectedState state and return true.
     if (d->state == Connected) {
         qWarning("QHttpSocketEngine::connectToHost: called when already connected");
@@ -514,6 +516,7 @@ void QHttpSocketEngine::slotSocketConnected()
     QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
     //qDebug() << "slotSocketConnected: priv=" << priv << (priv ? (int)priv->method : -1);
     if (priv && priv->method != QAuthenticatorPrivate::None) {
+        d->credentialsSent = true;
         data += "Proxy-Authorization: " + priv->calculateResponse(method, path);
         data += "\r\n";
     }
@@ -591,15 +594,26 @@ void QHttpSocketEngine::slotSocketReadNotification()
     d->readBuffer.clear(); // we parsed the proxy protocol response. from now on direct socket reading will be done
 
     int statusCode = responseHeader.statusCode();
+    QAuthenticatorPrivate *priv = 0;
     if (statusCode == 200) {
         d->state = Connected;
         setLocalAddress(d->socket->localAddress());
         setLocalPort(d->socket->localPort());
         setState(QAbstractSocket::ConnectedState);
+        d->authenticator.detach();
+        priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
+        priv->hasFailed = false;
     } else if (statusCode == 407) {
-        if (d->authenticator.isNull())
+        if (d->credentialsSent) {
+            //407 response again means the provided username/password were invalid.
+            d->authenticator = QAuthenticator(); //this is needed otherwise parseHttpResponse won't set the state, and then signal isn't emitted.
+            d->authenticator.detach();
+            priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
+            priv->hasFailed = true;
+        }
+        else if (d->authenticator.isNull())
             d->authenticator.detach();
-        QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
+        priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
 
         priv->parseHttpResponse(responseHeader, true);
 
@@ -639,7 +653,6 @@ void QHttpSocketEngine::slotSocketReadNotification()
 
         if (priv->phase == QAuthenticatorPrivate::Done)
             emit proxyAuthenticationRequired(d->proxy, &d->authenticator);
-
         // priv->phase will get reset to QAuthenticatorPrivate::Start if the authenticator got modified in the signal above.
         if (priv->phase == QAuthenticatorPrivate::Done) {
             setError(QAbstractSocket::ProxyAuthenticationRequiredError, tr("Authentication required"));
@@ -796,6 +809,7 @@ QHttpSocketEnginePrivate::QHttpSocketEnginePrivate()
     , readNotificationPending(false)
     , writeNotificationPending(false)
     , connectionNotificationPending(false)
+    , credentialsSent(false)
     , pendingResponseData(0)
 {
     socket = 0;
diff --git a/src/network/socket/qhttpsocketengine_p.h b/src/network/socket/qhttpsocketengine_p.h
index d7cc7c1..476d689 100644
--- a/src/network/socket/qhttpsocketengine_p.h
+++ b/src/network/socket/qhttpsocketengine_p.h
@@ -182,6 +182,7 @@ public:
     bool readNotificationPending;
     bool writeNotificationPending;
     bool connectionNotificationPending;
+    bool credentialsSent;
     uint pendingResponseData;
 };