QML the fallback auth dialog

src/FallbackAuth.cpp

@@ -0,0 +1,29 @@
+// SPDX-FileCopyrightText: Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "FallbackAuth.h"
+
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "MatrixClient.h"
+
+FallbackAuth::FallbackAuth(const QString &session, const QString &authType, QObject *parent)
+  : QObject{parent}
+  , m_session{session}
+  , m_authType{authType}
+{
+}
+
+void
+FallbackAuth::openFallbackAuth()
+{
+    const auto url = QString("https://%1:%2/_matrix/client/r0/auth/%4/"
+                             "fallback/web?session=%3")
+                       .arg(QString::fromStdString(http::client()->server()))
+                       .arg(http::client()->port())
+                       .arg(m_session, m_authType);
+
+    QDesktopServices::openUrl(url);
+}