GetDomainToken.cs

using System;
using System.Net;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace DomainToken
{
    class GetDomainToken
    {

        private String UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36";

        CookieContainer cookieContainer = new CookieContainer();

        public GetDomainToken()
        {
        }

        private HttpWebRequest getReqest(string url)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.CookieContainer = cookieContainer;
            request.UserAgent = UserAgent;
            return request;
        }

        private HttpWebRequest getPost(string url, string body)
        {
            ASCIIEncoding ascii = new ASCIIEncoding();
            byte[] postBytes = ascii.GetBytes(body);

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.CookieContainer = cookieContainer;
            request.UserAgent = UserAgent;
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = postBytes.Length;

            // add post data to request
            Stream postStream = request.GetRequestStream();
            postStream.Write(postBytes, 0, postBytes.Length);
            postStream.Flush();
            postStream.Close();
            return request;
        }

        private string getResponseBody(HttpWebResponse response)
        {
            Stream dataStream = response.GetResponseStream ();
            StreamReader reader = new StreamReader(dataStream);
            string responseString = reader.ReadToEnd();
            reader.Close ();
            dataStream.Close ();
            return responseString;
        }

        public Cookie getDomainTokenCookie(string username, string password)
        {
            Console.WriteLine("tivo domaintoken getter in c#");
            Uri loginUrl = new Uri("https://online.tivo.com/start/watch/JustForMeTVE?forceAuth=1");
            
            HttpWebRequest request = getReqest(loginUrl.ToString());
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            // Console.WriteLine(response.StatusDescription);
            
            string responseFromServer = getResponseBody(response);
            // Console.WriteLine (responseFromServer);
            response.Close ();
            // Console.WriteLine();

            Regex rx = new Regex("name=\\\"SAMLRequest\\\" value=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            MatchCollection matches = rx.Matches(responseFromServer);
            String SAMLRequest = matches[0].Groups[1].Value;
            // Console.WriteLine("SAMLRequest: " + SAMLRequest);
            // Console.WriteLine();

            rx = new Regex("name=\\\"RelayState\\\" value=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String RelayState = matches[0].Groups[1].Value;
            // Console.WriteLine("RelayState: " + SAMLRequest);
            // Console.WriteLine();

            rx = new Regex("method=\\\"POST\\\" action=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String SamlPostUrl = matches[0].Groups[1].Value;
            // Console.WriteLine("SamlPostUrl: " + SamlPostUrl);

            String samlStartPost = "SAMLRequest=" + Uri.EscapeDataString(SAMLRequest) + "&RelayState=" + Uri.EscapeDataString(RelayState);

            request = getPost(SamlPostUrl, samlStartPost);
            response = (HttpWebResponse)request.GetResponse();
            Uri redirectUrl = response.ResponseUri;
            
            responseFromServer = getResponseBody(response);
            // Console.WriteLine (responseFromServer);
            response.Close ();
            // Console.WriteLine();

            rx = new Regex("auraConfig = ([^;]*);",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String auraConfig = matches[0].Groups[1].Value;
            // Console.WriteLine("auraConfig: " + auraConfig);

            JObject auraConfigObject = JObject.Parse(auraConfig);
            JToken context = auraConfigObject["context"];
            JToken loaded = context["loaded"];

            JToken auraContext = JObject.Parse("{\"mode\":\"PROD\",\"fwuid\":\"\",\"app\":\"siteforce:loginApp2\",\"loaded\":\"\",\"dn\":[],\"globals\":{},\"uad\":false}");
            auraContext["fwuid"] = context["fwuid"];
            auraContext["loaded"] = loaded;

            JObject auth = JObject.Parse("{\"actions\":[{\"id\":\"87;a\",\"descriptor\":\"apex://Tivo_idp_LightningLoginFormController/ACTION$login\",\"callingDescriptor\":\"markup://c:tivo_idp_login_form\",\"params\": {\"username\":\"username\",\"password\":\"password\",\"startUrl\":\"[\\\"startURL=/idp/login?app=0sp380000004COf\\\"]\",\"relayState\":\"binding=HttpPost\"}}]}");
            JToken authParams = auth["actions"][0]["params"];
            authParams["username"] = username;
            authParams["password"] = password;
            // Console.WriteLine (auth.ToString());
            String loginPostBody = "message=" + Uri.EscapeDataString(auth.ToString(Formatting.None)) 
                + "&aura.context=" + Uri.EscapeDataString(auraContext.ToString(Formatting.None))
                + "&aura.pageURI=" + Uri.EscapeDataString(redirectUrl.AbsoluteUri)
                + "&aura.token=undefined";

            // Console.WriteLine("loginPostBody: " + loginPostBody);

            request = getPost("https://tivoidp.tivo.com/s/sfsites/aura?r=4&other.Tivo_idp_LightningLoginForm.login=1", loginPostBody);
            response = (HttpWebResponse)request.GetResponse();            
            responseFromServer = getResponseBody(response);
            // Console.WriteLine("loginResponse: " + responseFromServer);
            JObject loginResponse = JObject.Parse(responseFromServer);
            String frontDoor = (string) loginResponse["events"][0]["attributes"]["values"]["url"];
            // Console.WriteLine("frontDoor: " + frontDoor);

            request = getReqest(frontDoor);
            response = (HttpWebResponse)request.GetResponse();
            responseFromServer = getResponseBody(response);
            rx = new Regex("window\\.location\\.href=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String frontDoorResponse = matches[0].Groups[1].Value;
            // Console.WriteLine("frontDoorResponse: " + frontDoorResponse);

            request = getReqest("https://tivoidp.tivo.com" + frontDoorResponse);
            response = (HttpWebResponse)request.GetResponse();
            responseFromServer = getResponseBody(response);

            rx = new Regex("name=\\\"SAMLResponse\\\" value=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String SAMLResponse = matches[0].Groups[1].Value;
            rx = new Regex("action=\\\"([^\\\"]*)\\\"",RegexOptions.None);
            matches = rx.Matches(responseFromServer);
            String SAMLResponseAction = matches[0].Groups[1].Value;
            // Console.WriteLine("SAMLResponse: " + SAMLResponse);
            // Console.WriteLine("SAMLResponseAction: " + SAMLResponseAction);
            // Console.WriteLine();
            string SAMLResponseBody = "SAMLResponse=" + Uri.EscapeDataString(SAMLResponse);
            // Console.WriteLine("SAMLResponseBody: " + SAMLResponseBody);
            request = getPost(SAMLResponseAction, SAMLResponseBody);
            response = (HttpWebResponse)request.GetResponse();
            responseFromServer = getResponseBody(response);
            // Console.WriteLine();
            // Console.WriteLine("responseFromServer: " + responseFromServer);
            // Console.WriteLine("ResponseUri: " + response.ResponseUri);
            // Console.WriteLine();

            CookieCollection cookieCollection = cookieContainer.GetCookies(loginUrl);
            foreach(Cookie c in cookieCollection) {
                if (c.Name == "domainToken") {
                    Console.WriteLine($"{c.Name} = {c.Value}");
                    Console.WriteLine($"Expires: {c.Expires} (expired? {c.Expired})");
                    return c;
                }
            }
            return null;
        }


        static void Main(string[] args)
        {
            GetDomainToken gdt = new GetDomainToken();
            Console.Write("Username: ");
            string username = Console.ReadLine();
            Console.Write("Password: ");
            string password = Console.ReadLine();
            gdt.getDomainTokenCookie(username, password);
        }
    }
}

tivo-dt-net.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net48</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.Net.Compilers" Version="4.2.0">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
  </ItemGroup>

</Project>