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using System;
using System.Collections;
using System.Collections.Specialized;
using System.Configuration;
using System.IO;
using System.Text;
using System.Web;
using System.Web.UI;
using TripleDESEncryption;
namespace WebUtilities
{
public partial class PostDataHelper
{
private static string SecretKey;
private static string InitializeVector;
private static TrippleDESCryptoService des;
private PostDataHelper.PostData _PostData = new PostDataHelper.PostData();
private HttpResponse Response;
private HttpRequest Request;
/// <summary>
/// Data
/// </summary>
public PostDataHelper.PostData Data
{
get
{
return this._PostData;
}
}
/// <summary>
/// Get/Set FormName for data
/// </summary>
public string FormName
{
get
{
return this.Data.FormName;
}
set
{
this.Data.FormName = value;
}
}
/// <summary>
/// Static ctor to initialize encryptor
/// </summary>
static PostDataHelper()
{
PostDataHelper.SecretKey = ConfigurationManager.AppSettings["TripleDESSecretKey"];
PostDataHelper.InitializeVector = ConfigurationManager.AppSettings["TripleDESIntialzationVector"];
PostDataHelper.des = new TrippleDESCryptoService(PostDataHelper.SecretKey, PostDataHelper.InitializeVector);
}
/// <summary>
/// ctor
/// </summary>
/// <param name="request">Current Request</param>
/// <param name="response">Current Response</param>
public PostDataHelper(HttpRequest request, HttpResponse response)
{
this.Request = request;
this.Response = response;
}
/// <summary>
/// Reads data posted using same utility
/// </summary>
public void ReadPostedData()
{
this._PostData = new PostDataHelper.PostData();
if (this.Request.Form != null && this.Request.Form["__TransferData"] != null)
{
foreach (string key in this.Request.Form.Keys)
{
this.Data.SetRawData(key, PostDataHelper.des.DecryptData(HttpUtility.HtmlDecode(this.Request.Form[key])));
}
}
}
/// <summary>
/// Posts data
/// </summary>
/// <param name="Destination"></param>
public void RedirectWithData(string Destination)
{
this.Response.Clear();
StringBuilder sb = new StringBuilder();
sb.Append("<html>");
sb.Append("<body onload='document.forms[\"form\"].submit()'>");
sb.AppendFormat("<form name='form' action='{0}' method='post'>", Destination);
foreach (string key in this.Data)
{
sb.AppendFormat("<input type='hidden' name='{0}' value='{1}' />", key, HttpUtility.HtmlEncode(PostDataHelper.des.EncryptData(this.Data.GetRawData(key))));
}
sb.Append("<noscript>Javascript is disabled, Click submit to proceed.");
sb.Append("<br/><input type='submit' value='submit'/>");
sb.Append("</noscript>");
sb.Append("</form>");
sb.Append("</body>");
sb.Append("</html>");
this.Response.Write(sb.ToString());
this.Response.End();
}
}
}
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