I need help! can't log in from the client side using WCF data service

Question

User1289807499 posted

Hey everyone, 

i've been struggling with this issue for 3 days now.. i'm working with some colleagues in a training and this issue is making my work on stand by. let me explain to you the situation WCF Data services experts. 

I have a web application forms hosted in IIS express, this app contains a wcf data service, and a model, this app is connected a database sql server 2012 express. in the other side i have a web application forms as a client consumer of the service. well the client must log in and do some operations like add users, other stuff.. but before they must to log in. 

When i execute the client app and insert username/pass an webexception is thrown in the line: WebResponse res = request.GetResponse();

heres the code of the log in button: 

GlobalVariables.ctx = new XpoContext(GlobalVariables.serviceRootUri);
GlobalVariables.ctx.Credentials = new NetworkCredential(UserName.Text, UserPass.Text);
var res = GlobalVariables.ctx.GestionRestaurant_v3_Site.FirstOrDefault();
FormsAuthentication.RedirectFromLoginPage(UserName.Text, Persist.Checked);

in the web app i have a class XpoContext: 

as i've mentionned before, the web application are hosted in IIS Express, i've created the virtual directory and copied/pasted the link in the xpocontext 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.Data.Services.Client;
using System.IO;
using System.Security;


namespace KSclient.ServiceReference1
{
    public partial class XpoContext
    {

        partial void OnContextCreated()
        {
            this.SendingRequest += new EventHandler<SendingRequestEventArgs>(OnSendingRequestManualCookies);
        }

        //Using Manual Approach to Getting and Setting Cookies:
        void OnSendingRequestManualCookies(object sender, SendingRequestEventArgs e)
        {
            NetworkCredential creds = this.Credentials as NetworkCredential;
            string cookie = GetCookie(creds.UserName, creds.Password);
            e.RequestHeaders.Add("Cookie", cookie);
        }

        string _cookie;
        private string GetCookie(string username, string password)
        {
            if (_cookie == null)
            {
                string loginServiceAddress =
                    string.Format("{0}/{1}/{2}",
                    "http://localhost:27796",
                    "Authentication_JSON_AppService.axd",
                    "Login");
                string body = "";
                WebRequest request =
                    CreateAuthRequest(username, password, loginServiceAddress, out body);
                Stream stream = request.GetRequestStream();
                StreamWriter sw = new StreamWriter(stream);
                sw.Write(body);
                sw.Close();
                WebResponse res = request.GetResponse();
                if (res.Headers["Set-Cookie"] != null)
                {
                    _cookie = res.Headers["Set-Cookie"];
                }
                else
                {
                    throw new SecurityException("Invalid username and password");
                }
            }
            return _cookie;
        }
        private static WebRequest CreateAuthRequest(string username, string password, string loginServiceAddress, out string body)
        {
            WebRequest request = HttpWebRequest.Create(loginServiceAddress);
            request.Method = "POST";
            request.ContentType = "application/json";
            body = string.Format(
                "{{ \"userName\": \"{0}\", \"password\": \"{1}\", \"createPersistentCookie\":false}}",
                username,
                password);
            request.ContentLength = body.Length;
            return request;
        }




    }
}

thank you for reading