Configure a Socket for Server-Side TLS

See more Socket/SSL/TLS Examples

Demonstrates Socket.InitSslServer, which configures the object for server-side TLS using a server certificate that has access to its private key, then listens for and accepts a TLS connection.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

func chilkatTest() {
    var success: Bool = false

    let socket = CkoSocket()!

    //  The file path is relative to the application's current working directory.  An absolute path
    //  may also be used.  Supply the path appropriate to your own environment.
    //  The PFX password should come from a secure source rather than being hard-coded.
    var pfxPassword: String? = "myPfxPassword"
    let cert = CkoCert()!
    success = cert.loadPfxFile(path: "qa_data/server.pfx", password: pfxPassword)
    if success == false {
        print("\(cert.lastErrorText!)")
        return
    }

    //  Configure this object for server-side TLS using the certificate.  The certificate must have
    //  access to its corresponding private key.
    success = socket.initSslServer(cert: cert)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    //  Listen for connections.  Accepted connections will use TLS.
    success = socket.bindAndListen(port: 5000, backlog: 25)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    let connectedSock = CkoSocket()!
    success = socket.acceptNext(maxWaitMs: 20000, socket: connectedSock)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    print("Accepted a TLS client connection.")

}