WFFM form POST and redirect - sitecore

Question

I've roughly followed this example but it doesnt solve my Sitecore-related redirect problem.
sitecore web form for marketers form post to external url
I've confirmed that my form POST works properly by using a 3rd party POST test tool. The problem I'm having is that in Sitecore they use a successMode to determine what the user wants todo if the submit is a success. If the user selects successmode/message, the form redirects back to a thank you message. If the user selects successmode/redirect, the success method pipeline looks for the success page value in the form and then a redirect happens to that URL. The problem with the redirect is that it loses my POST data.
Can anyone provide a Sitecore example of how they executed a form POST, and then redirect to the target external URL without losing POST values?
Did you use the successmode settings in the form?
I'm debating whether to overrride the successmode redirect pipeline, add conditions and test but I'm open to a solution that could include jquery.
Here's is my code:
using Sitecore.Data;
using Sitecore.Form.Core.Client.Data.Submit;
using Sitecore.Form.Core.Controls.Data;
using Sitecore.Form.Submit;
using System.Web;
using Sitecore.Web.UI.HtmlControls;
using Sitecore.Text;
using Sitecore.Forms.Core.Data;
using Sitecore.Form.Core.Configuration;
using Sitecore.Forms.Core.Crm;
using System;
using System.IO;
using System.Net;
using Sitecore.Diagnostics;
using System.Text;
namespace XXXWffmExternals
{
public class Redirect : ISaveAction
{
UrlString url = new UrlString("https://XXX.XXX/default.asp");
public virtual void Execute(ID formid, AdaptedResultList fields, params object[] data)
{
String strResult = "";
strResult = setPost(url.ToString(), fields);
}
public String setPost(string url, AdaptedResultList fieldListForPOST)
{
String resultReturn = "";
AdaptedControlResult firstname = fieldListForPOST.GetEntry(this.First_Name, "First_Name");
AdaptedControlResult lastname = fieldListForPOST.GetEntry(this.Last_Name, "Last_Name");
AdaptedControlResult billingaddress = fieldListForPOST.GetEntry(this.Billing_Address, "Billing_Address");
AdaptedControlResult billingcity = fieldListForPOST.GetEntry(this.Billing_City, "Billing_City");
AdaptedControlResult billingstate = fieldListForPOST.GetEntry(this.Billing_State, "Billing_State");
AdaptedControlResult billingzip = fieldListForPOST.GetEntry(this.Billing_Zip, "Billing_Zip");
AdaptedControlResult billingphone = fieldListForPOST.GetEntry(this.Billing_Phone, "Billing_Phone");
AdaptedControlResult email = fieldListForPOST.GetEntry(this.Email, "Email");
AdaptedControlResult amount = fieldListForPOST.GetEntry(this.Amount, "Amount");
AdaptedControlResult desc = fieldListForPOST.GetEntry(this.Description, "Description");
AdaptedControlResult login = fieldListForPOST.GetEntry(this.Login, "Login");
AdaptedControlResult acct = fieldListForPOST.GetEntry(this.Account, "Account");
AdaptedControlResult fund = fieldListForPOST.GetEntry(this.Fund, "Fund");
AdaptedControlResult org = fieldListForPOST.GetEntry(this.Org, "Org");
AdaptedControlResult source_code = fieldListForPOST.GetEntry(this.Source_Code, "Source_Code");
String post =
"First_Name=" + firstname.Value +
"&Last_Name=" + lastname.Value +
"&Billing_Address=" + billingaddress.Value +
"&Billing_City=" + billingcity.Value +
"&Billing_State=" + billingstate.Value +
"&Billing_Zip=" + billingzip.Value +
"&Billing_Phone=" + billingphone.Value +
"&Email=" + email.Value +
"&Amount=" + amount.Value +
"&Description=" + desc.Value +
"&Login=" + login.Value +
"&Account=" + acct.Value +
"&Fund=" + fund.Value +
"&Org=" + org.Value +
"&Invoice_Num=" + "DVXXXX";
resultReturn = sendPost(url.ToString(), post);
return resultReturn;
}
public String sendPost(string url, string post)
{
String result = "";
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
objRequest.Method = "POST";
// Set credentials to use for this request.
objRequest.Credentials = CredentialCache.DefaultCredentials;
// Convert POST data to a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(post);
// Set the ContentLength property of the WebRequest.
objRequest.ContentLength = byteArray.Length;
// Set the ContentType property of the WebRequest.
objRequest.ContentType = "application/x-www-form-urlencoded";
// Get the request stream.
Stream dataStream = objRequest.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
// Get the response.
WebResponse response = objRequest.GetResponse();
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream ();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader (dataStream);
// Read the content.
result = reader.ReadToEnd ();
// Clean up the streams.
reader.Close ();
dataStream.Close ();
response.Close ();
return result;
}
public string First_Name { get; set; }
public string Last_Name { get; set; }
public string Billing_Address { get; set; }
public string Billing_City { get; set; }
public string Billing_State { get; set; }
public string Billing_Zip { get; set; }
public string Billing_Phone { get; set; }
public string Email { get; set; }
public string Amount { get; set; }
public string Description { get; set; }
public string Login { get; set; }
public string Account { get; set; }
public string Fund { get; set; }
public string Org { get; set; }
public string Invoice_Num { get; set; }
public string Source_Code { get; set; }
}
}

Answer 1

Why do you want to use WFFM for the form if you don't want to invoke any of the WFFM functionality? The point of WFFM is to allow marking people to create their own forms without any Developer input. You're having to edit all the post data in your code which pretty much eliminates the ability for anyone to edit the form without developer input. I'd say, if you're going to go through the process of writing all the code to submit your code by hand, you can use a Sitecore item to create the form and then use your own code for processing. Skip WFFM. It's a lot more work to do things as you suggested than to just manually create a form.
If you really need any WFFM end functionality, you can easily call them... it's still way easier than trying to override WFFM base functionality to inject your own functionality.