OAuthListener/Program.cs
using System;
using System.Threading; using System.Threading.Tasks; using Microsoft.AspNetCore; using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Connections; using Microsoft.AspNetCore.Hosting; using Microsoft.AspNetCore.Http; using Microsoft.Extensions.Hosting; using Microsoft.Extensions.Logging; namespace OAuthListener { class Program { static readonly CancellationTokenSource _cts = new(); static Task Main(string[] args) => WebHost.CreateDefaultBuilder() // Prevent status messages being written to stdout .SuppressStatusMessages(true) // Disable all logging to stdout .ConfigureLogging(config => config.ClearProviders()) // Listen on the port passed to the process. .UseKestrel(options => options.ListenLocalhost(int.Parse(args[0]))) .Configure(app => app.Run(async context => { var message = "ERROR: Unable to retrieve authorisation code."; if (context.Request.Query.TryGetValue("code", out var code)) { // We received an authorisation code, output it to stdout. Console.WriteLine(code); message = "Authentication is complete. You can now close the window/tab."; } await context.Response.WriteAsync(message); // Invalidate the cancellation token so the server stops. _cts.Cancel(); }) ) .Build() // Run asynchronously using the cancellation token to signal when the process should end. // This will be awaited by the .NET framework and the process will end when the cancellation token is invalidated. .RunAsync(_cts.Token); } } |