public async Task HandleRedirect(Func <string, Task> navigateAction)
{
Request = OAuthRequest.BuildLoopbackRequest();
State.Token = null;
using (var listener = new HttpListener())
{
listener.Prefixes.Add(Request.RedirectUri);
listener.Start();
await navigateAction(Request.AuthorizationRequestUri);
var context = await listener.GetContextAsync();
string html = string.Format("<html><body></body></html>");
var buffer = Encoding.UTF8.GetBytes(html);
context.Response.ContentLength64 = buffer.Length;
using (var stream = context.Response.OutputStream)
{
var responseTask = stream.WriteAsync(buffer, 0, buffer.Length);
}
string error = context.Request.QueryString["error"];
if (error != null)
{
return;
}
string state = context.Request.QueryString["state"];
if (state != Request.State)
{
return;
}
string code = context.Request.QueryString["code"];
_logger.LogInformation("Login successfull");
ApplyToken(await Request.ExchangeCodeForAccessToken(code));
_logger.LogDebug("Token information: {@token}", State.Token);
}
}