using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Net;
using System.IO;
using System.Text;

namespace GoogleControl
{
	/// <summary>
	/// Component to use in the consumer ASPX to call the HTTP control.
	/// Declaration:
	/// &lt;%@ Page language="c#" Codebehind="ControlClient.aspx.cs"
	/// AutoEventWireup="false" Inherits="GoogleControl.ControlClient"
	/// Src="ControlClient.aspx.cs" %&gt;
	/// Usage:
	/// &lt;% include(url_of_GoogleForm); %&gt;
	/// <p>Copyright (c) 2002 Alexis Grandemange<br/>
	/// Mail: alexis.grandemange@pagebox.net</p>
	/// <pre>This program is free software; you can redistribute it and/or
	/// modify it under the terms of the GNU Lesser General Public
	/// License as published by the Free Software Foundation; version
	/// 2.1 of the License.
	/// This library is distributed in the hope that it will be useful,
	/// but WITHOUT ANY WARRANTY; without even the implied warranty of
	/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	/// GNU Lesser General Public License for more details.
	/// A copy of the GNU Lesser General Public License lesser.txt should be
	/// included in the distribution.</pre>
	/// </summary>
	public class ControlClient : System.Web.UI.Page
	{
		public ControlClient()
		{
			Page.Init += new System.EventHandler(Page_Init);
		}

		private void Page_Load(object sender, System.EventArgs e)
		{
		}

		private void Page_Init(object sender, EventArgs e)
		{
			InitializeComponent();
		}

		#region Web Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
		
		/// <summary>
		/// Write the GoogleForm stream on the consumer ASPX.
		/// include replaces GoogleForm.aspx by its full URL.
		/// include sets the consumer full URL in the from parameter.
		/// </summary>
		/// <param name="url">Url of GoogleForm.aspx</param>
		public void include(string url) 
		{
			string referer = Request.ServerVariables["HTTP_HOST"] + Request.ServerVariables["URL"];
			string query = url + "?from=" + referer;
			WebRequest WReq = WebRequest.Create(query);
			WReq.Timeout = 1000000;
			WebResponse WResp = WReq.GetResponse();
			StreamReader sr = new StreamReader(WResp.GetResponseStream(), Encoding.UTF8);
			int length = 1024;
			char [] buf = new char[1024];
			int len = sr.Read(buf, 0, length);
			while(len > 0) 
			{
				string txt = new string(buf, 0, len);
				Response.Write(txt.Replace("GoogleForm.aspx", url));
				len = sr.Read(buf, 0, length);
			}
		}
	}
}