cmd: handle auth error

Author: TheOneRing

src/cmd/cmd.cpp

@@ -497,6 +497,9 @@ int main(int argc, char **argv)
         ctx.options.server_url = ctx.options.server_url.adjusted(QUrl::RemoveUserInfo);
         ctx.account->setUrl(ctx.options.server_url);
 
+        QObject::connect(ctx.account->credentials(), &AbstractCredentials::authenticationFailed, qApp,
+            [] { qFatal() << "Authentication failed please verify your credentials"; });
+
         auto *checkServerJob = CheckServerJobFactory(ctx.account->accessManager()).startJob(ctx.account->url(), qApp);
 
         QObject::connect(checkServerJob, &CoreJob::finished, qApp, [ctx, checkServerJob] {

src/cmd/tokencredentials.cpp

@@ -46,6 +46,11 @@ class OCC::TokensAccessManager : public AccessManager
 TokenCredentials::TokenCredentials(QByteArray &&username, QByteArray &&token)
     : _accessManager(new TokensAccessManager(std::move(username), std::move(token), this))
 {
+    connect(_accessManager, &QNetworkAccessManager::finished, this, [this](QNetworkReply *reply) {
+        if (reply->error() == QNetworkReply::AuthenticationRequiredError) {
+            Q_EMIT authenticationFailed();
+        }
+    });
 }
 
 AccessManager *TokenCredentials::createAM() const