Login a prestashop user from external web application

[BabaOrhum]

I would login Prestashop user from an external web application (developed in c#) and then redirect him to my Prestashop as a connected user.

 

My approach consist in a POST HTTP call to the ‘authentication’ controller of the Prestashop with this parameters and theirs respective values:

• email à [email protected]
• passwd à hash in MD5
• back à my-account
• SubmitLogin à true

 

The HTTP response is OK, but when it redirect to the Prestashop, the user isn’t connected.

I understand that a cookie is necessary to auto connect, but I don’t know how to get it.

 

So I have two questions:

• Is my approach correct ?
• How to implement the cookie in my code ?

 

My current code is as bellow: 

protected void BoutonAuthentificationPrestashop_Click(object sender, EventArgs e)
{
    try
    {
        var request = (HttpWebRequest)WebRequest.Create("https://www.flexmarket.fr/index.php?controller=authentication");

        var postData = string.Format("email={0}&passwd={1}&back={2}&SubmitLogin=1",
            "[email protected]",
            MD5Hash("xxxxxxx"),
            "my-account");

        var data = Encoding.ASCII.GetBytes(postData);

        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        request.ContentLength = data.Length;

        using (var stream = request.GetRequestStream())
        {
            stream.Write(data, 0, data.Length);
        }

        var res = (HttpWebResponse)request.GetResponse();

        Page.Response.Write("<script>window.open('" + res.ResponseUri.AbsoluteUri + "','_blank');</script>");
    }
    catch (Exception ex) { }
}

public static string MD5Hash(string input)
{
    StringBuilder hash = new StringBuilder();
    MD5CryptoServiceProvider md5provider = new MD5CryptoServiceProvider();
    byte[] bytes = md5provider.ComputeHash(new UTF8Encoding().GetBytes(input));

    for (int i = 0; i < bytes.Length; i++)
    {
        hash.Append(bytes[i].ToString("x2"));
    }
    return hash.ToString();
}