public static RedirectHttpListener Start(string expectedState)
{
var listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
var port = ((IPEndPoint)listener.LocalEndpoint).Port;
listener.Stop();
var redirectUri = string.Format("http://{0}:{1}/", IPAddress.Loopback, port);
var httpListener = new HttpListener();
httpListener.Prefixes.Add(redirectUri);
httpListener.Start();
var result = new RedirectHttpListener(redirectUri, httpListener, expectedState);
return(result);
}
public async Task <string> GetUserInfoAsync()
{
var state = GetRandomBase64(32);
var codeVerifier = GetRandomBase64(32);
var codeChallenge = ComputeHash(codeVerifier);
using (var webServer = RedirectHttpListener.Start(state))
{
var url = BuildAuthorizationUrl(webServer.RedirectUri, state, codeChallenge);
var browser = Process.Start(url);
var accessCode = await webServer.GetAccessCodeAsync();
var tokens = await GetAccessTokenInfoAsync(accessCode, codeVerifier, webServer.RedirectUri);
Console.WriteLine("--- ID Token ---");
Console.WriteLine(tokens.IdToken);
Console.WriteLine("--- Refresh Token ---");
Console.WriteLine(tokens.RefreshToken);
return(await GetUserInfoAsync(tokens.AccessToken));
}
}
