Qt Desktop App

A Qt desktop app example for Casdoor.

How to Run the Example

Prerequisites

• Qt6 SDK
• OpenSSL toolkit

Initialization

You need to initialize 7 string parameters:

Name	Description	File
endpoint	Your Casdoor server host/domain	mainwindow.h
client_id	The Client ID of your Casdoor application	mainwindow.h
client_secret	The Client Secret of your Casdoor application	mainwindow.h
certificate	The public key for the Casdoor application's cert	mainwindow.h
org_name	The name of your Casdoor organization	mainwindow.h
app_name	The name of your Casdoor application	mainwindow.h
redirect_url	The path of the callback URL for your Casdoor application, will be http://localhost:8080/callback if not provided	mainwindow.h

If you don't set the endpoint parameter, this project will use http://localhost:8000 as the default Casdoor server.

Running the Application

Using Qt Creator

1. Open casdoor-cpp-qt-example.pro
2. Set the INCLUDEPATH of OpenSSL in casdoor-cpp-qt-example.pro
3. Press Ctrl + R to start

Preview

After running this Qt desktop application, a new window will be shown on your desktop.

If you click the Sign In button, a login window will be shown on your desktop.

After a successful login, a user profile window will be shown on your desktop, displaying your user information.

You can preview the entire process in the following GIF image.

How to Integrate

Opening the Login Window

// Load and display the login page of Casdoor
m_webview->page()->load(*m_signin_url);
m_webview->show();

Listening to the Open Application Event

// Initialize the TcpServer object and listen on port 8080
m_tcpserver = new QTcpServer(this);
if (!m_tcpserver->listen(QHostAddress::LocalHost, 8080)) {
    qDebug() << m_tcpserver->errorString();
    close();
}
connect(m_tcpserver, SIGNAL(newConnection()), this, SLOT(on_tcp_connected()));

Using Auth Code to Get the User Info

// Get the token and parse it with the JWT library
std::string token = m_casdoor->GetOAuthToken(code.toStdString());
auto decoded = m_casdoor->ParseJwtToken(token);