UnlinkPSN/UnlinkPSN/UnlinkForm.cs

using Microsoft.Web.WebView2.Core;
using Newtonsoft.Json;
using System.Dynamic;
using System.Net;
using XboxWebApi.Authentication;
using XboxWebApi.Authentication.Model;

namespace UnlinkPSN
{
    public partial class UnlinkForm : Form
    {
        public UnlinkForm()
        {
            InitializeComponent();
        }

        private void UnlinkForm_Load(object sender, EventArgs e)
        {
            string requestUrl = AuthenticationService.GetWindowsLiveAuthenticationUrl();
            xbxAuth.Source = new Uri(requestUrl);
        }

        private string gamerTag = "";

        private void UnlinkPsnAccount(string sessionTicket)
        {
            dynamic request = new ExpandoObject();
            string requestStr = JsonConvert.SerializeObject(request);

            WebClient wc = new WebClient();
            wc.Headers.Add("User-Agent", "cpprestsdk/2.9.0");
            wc.Headers.Add("Content-Type", "application/json; charset=utf-8");
            wc.Headers.Add("x-playfabsdk", "XPlatCppSdk-3.6.190304");
            wc.Headers.Add("X-Authorization", sessionTicket);
            wc.UploadString("https://20ca2.playfabapi.com/Client/UnlinkPSNAccount?sdk=XPlatCppSdk-3.6.190304", requestStr);

        }
        private dynamic LoginWithXbox(string xbxToken)
        {
            dynamic request = new ExpandoObject();
            request.CreateAccount = null;
            request.CustomId = null;

            request.EncryptedRequest = null;

            request.InfoRequestParameters = new ExpandoObject();
            request.InfoRequestParameters.GetCharacterInventories = false;
            request.InfoRequestParameters.GetCharacterList = false;
            request.InfoRequestParameters.GetPlayerProfile = true;
            request.InfoRequestParameters.GetPlayerStatistics = false;
            request.InfoRequestParameters.GetTitleData = false;
            request.InfoRequestParameters.GetUserAccountInfo = true;
            request.InfoRequestParameters.GetUserData = false;
            request.InfoRequestParameters.GetUserInventory = false;
            request.InfoRequestParameters.GetUserReadOnlyData = false;
            request.InfoRequestParameters.PlayerStatisticNames = null;
            request.InfoRequestParameters.ProfileConstraints = null;
            request.InfoRequestParameters.TitleDataKeys = null;
            request.InfoRequestParameters.UserDataKeys = null;
            request.InfoRequestParameters.UserReadOnlyDataKeys = null;

            request.PlayerSecret = null;
            request.TitleId = "20CA2";
            request.XboxToken = xbxToken;

            string requestStr = JsonConvert.SerializeObject(request, Formatting.Indented);

            WebClient wc = new WebClient();
            wc.Headers.Add("User-Agent", "cpprestsdk/2.9.0");
            wc.Headers.Add("Content-Type", "application/json; charset=utf-8");
            wc.Headers.Add("x-playfabsdk", "XPlatCppSdk-3.6.190304");
            wc.Headers.Add("x-reporterrorassuccess", "true");


            string responseStr = wc.UploadString("https://20ca2.playfabapi.com/Client/LoginWithXbox?sdk=XPlatCppSdk-3.6.190304", requestStr);
            return JsonConvert.DeserializeObject(responseStr);
        }

        private async Task<string> XboxAuth(string newUrl)
        {
            WindowsLiveResponse response = AuthenticationService.ParseWindowsLiveResponse(newUrl);
            AuthenticationService authenticator = new AuthenticationService(response);
            bool authenticateSuccess = await authenticator.AuthenticateAsync();
            if (authenticateSuccess)
            {
                gamerTag = authenticator.UserInformation.Gamertag;
                // Get playfab xtoken
                string userToken = authenticator.UserToken.Jwt;

                dynamic altRelayingPartyRequest = new ExpandoObject();
                altRelayingPartyRequest.RelyingParty = "https://b980a380.minecraft.playfabapi.com/";
                altRelayingPartyRequest.TokenType = "JWT";
                altRelayingPartyRequest.Properties = new ExpandoObject();
                altRelayingPartyRequest.Properties.SandboxId = "RETAIL";
                altRelayingPartyRequest.Properties.UserTokens = new String[] { userToken };

                string altRelayingPartyRequestStr = JsonConvert.SerializeObject(altRelayingPartyRequest);

                WebClient wc = new WebClient();
                wc.Headers.Add("x-xbl-contract-version", "1");
                wc.Headers.Add("Content-Type", "application/json; charset=utf-8");
                dynamic jsonResponse = JsonConvert.DeserializeObject(wc.UploadString("https://xsts.auth.xboxlive.com/xsts/authorize", altRelayingPartyRequestStr));
                string xtoken = jsonResponse.Token;

                // Playfab LoginWithXbox token!
                return "XBL3.0 x=" + authenticator.UserInformation.Userhash + ";" + xtoken;
            }
            return null;
        }
        private async Task UnlinkPsnByMSAccount(string newUrl)
        {
            string xtoken = await XboxAuth(newUrl);
            if(xtoken != null)
            {
                dynamic loginResponse = LoginWithXbox(xtoken);
                if (loginResponse.data != null)
                {
                    // Playfab tokens
                    string sessionTicket = loginResponse.data.SessionTicket;

                    if(loginResponse.data.InfoResultPayload.AccountInfo.PsnInfo == null)
                    {
                        MessageBox.Show("No PSN Account is Linked.", "No Linked Account ...", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        Environment.Exit(0);
                    }
                    else
                    {
                        long accountId = loginResponse.data.InfoResultPayload.AccountInfo.PsnInfo.PsnAccountId;
                        string accountName = loginResponse.data.InfoResultPayload.AccountInfo.PsnInfo.PsnOnlineId;

                        if(MessageBox.Show("Do you want to unlink the PSN Account: \n"+accountName+" (0x"+accountId.ToString("X")+")\nfrom the Minecraft Bedrock Account "+ gamerTag+"?", "Unlink?", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                        {
                            UnlinkPsnAccount(sessionTicket);
                            MessageBox.Show("Account Unlinked!", "Unlink Success.", MessageBoxButtons.OK, MessageBoxIcon.Information);
                            Environment.Exit(0);
                        }
                        else
                        {
                            Environment.Exit(0);
                        }
                    }
                }
            }

            MessageBox.Show("Something went wrong!\n\nAnd just like microsoft im not going to tell you what it was.,", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            Environment.Exit(0);
        }
        private void xbxAuth_SourceChanged(object sender, CoreWebView2SourceChangedEventArgs e)
        {
            string newUrl = xbxAuth.Source.ToString();
            if (newUrl.StartsWith("https://login.live.com/oauth20_desktop.srf"))
            {
                this.Hide();
                _ = UnlinkPsnByMSAccount(newUrl);
            }
        }

        private void xbxAuth_CoreWebView2InitializationCompleted(object sender, CoreWebView2InitializationCompletedEventArgs e)
        {
            xbxAuth.CoreWebView2.CookieManager.DeleteAllCookies();
        }
    }
}