// This example shows how to allow only authenticated access to the OPC server, with username & password. It also shows how
// to create a user and assign it an initial password.
// You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server.
//
// Find all latest examples here: https://www.doc-that.com/files/onlinedocs/OPCLabs-ConnectivityStudio/Latest/examples.html .
// OPC client, server and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-ConnectivityStudio-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://forum.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
using OpcLabs.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.NodeSpace;
using System;
using OpcLabs.BaseLib.Security.User;
using OpcLabs.BaseLib.Security.User.Extensions;
namespace UAServerDocExamples.AccessControl
{
internal partial class UserIdentityTokens
{
public static void UserNameOnly()
{
// Instantiate the server object.
// By default, the server will run on endpoint URL "opc.tcp://localhost:48040/".
var server = new EasyUAServer();
// By default, the server allows all user identity token types. In this example, we will allow only username &
// password user identity tokens.
server.UserIdentityTokenTypes = UserIdentityTokenTypes.UserName;
// Create a user with username "user1" and password "pass". Without specifying security role IDs, the user
// session will be assigned implicit Anonymous, AuthenticatedUser and possibly TrustedApplication roles.
server.UserManagers.NameAndPassword.Create("user1", "pass");
// Define a data variable providing random integers.
var random = new Random();
server.Add(new UADataVariable("MyDataVariable").ReadValueFunction(() => random.Next()));
// Start the server.
Console.WriteLine("The server is starting...");
server.Start();
Console.WriteLine("The server is started.");
Console.WriteLine();
// Let the user decide when to stop.
Console.WriteLine("Press Enter to stop the server...");
Console.ReadLine();
// Stop the server.
Console.WriteLine("The server is stopping...");
server.Stop();
Console.WriteLine("The server is stopped.");
}
}
}