無線LANルータ(WN-AC1167DGR)を再起動させるやつ

Program.cs

using System;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using HtmlAgilityPack;
using ResetWlan.Properties;

namespace ResetWlan
{
  class Program
  {
    public static void Main(string[] args)
    {
      CheckConfig();
      Reboot().Wait();
    }

    static async Task Reboot()
    {
      using (var hc = new HttpClient())
      {
#if !DEBUG
        try
        {
#endif
        var byteArray = Encoding.ASCII.GetBytes($"{Settings.Default.ID}:{Settings.Default.Pass}");
        hc.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));

        const string url = "http://192.168.0.2/tlreset.htm";
        var html = await hc.GetStringAsync(url);
        var r = new Regex(@"<script language=""javascript"">\ndocument\.write\('(.*?)'\)\n</script>", RegexOptions.Singleline);
        html = r.Replace(html, "$1");//csrfトークンを書き出す

        var doc = new HtmlDocument();
        HtmlNode.ElementsFlags.Remove("form");//これをしないとformがノードにならない
        doc.LoadHtml(html);

        var form = doc.DocumentNode.ChildNodes.Descendants().First(x => x.Attributes["name"]?.Value == "RebootForm");
        var param = form.ChildNodes.Where(x => x.Name == "input").ToDictionary(i => i.Attributes["name"].Value, i => i.Attributes["value"]?.Value);
        param["functionIndex"] = "1";//再起動
        var content = new FormUrlEncodedContent(param);
        var responce = await hc.PostAsync(url, content);
        if (responce.IsSuccessStatusCode)
        {
          Console.WriteLine($"{DateTime.Now.ToLongDateString()}{DateTime.Now.ToLongTimeString()} 再起動に成功しました");
          Console.WriteLine(responce.ReasonPhrase);
        }
        else
        {
          throw new Exception(responce.ReasonPhrase);
        }
#if !DEBUG
        }
        catch (Exception e)
        {
          Console.WriteLine($"{DateTime.Now.ToLongDateString()}{DateTime.Now.ToLongTimeString()} 再起動に失敗しました");
          Console.WriteLine(e.Message);
        }
#endif
      }
    }
    private static void CheckConfig()
    {
      if (Settings.Default.ID == "")
      {
        Console.Write("Input ID：");
        Settings.Default.ID = Console.ReadLine();
      }
      if (Settings.Default.Pass == "")
      {
        Console.Write("Input Pass：");
        Settings.Default.Pass = Console.ReadLine();
      }
      Settings.Default.Save();
    }
  }
}