using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Text;
using System.Net.Sockets;
using System.Net.NetworkInformation;
using System.Net;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Collections;
using System.Xml;
using System.Xml.Schema; 

namespace WindowsApplication1
{
    class upnpDevice
    {
        private String url;
        private String type;
        private String urlbase;

        /**
         * This object receives a query reply, 
         * From here this object should get all the info from the upnp device
         * :)
         */
        public upnpDevice(String reply){
            Console.WriteLine(getUrl(reply));
            getXML();
            //Console.WriteLine("?");
        }
        private string getUrl(string reply)
        {
            /* QueryResult is somthing like this:
            *
            HTTP/1.1 200 OK
            Cache-Control:max-age=60
            Location:http://10.10.10.1:80/upnp/service/des_ppp.xml
            Server:NT/5.0 UPnP/1.0
            ST:upnp:rootdevice
            EXT:

            USN:uuid:upnp-InternetGatewayDevice-1_0-00095bd945a2::upnp:rootdevice
            */

            string location = "";
            string[] parts = reply.Split(new string[] {
                                    System.Environment.NewLine },
                                    StringSplitOptions.RemoveEmptyEntries);

            //Go through the xml and get the location
            foreach (string part in parts)
            {
                if (part.ToLower().StartsWith("location"))
                {
                    location = part.Substring(part.IndexOf(':') + 1);
                    location = location.Substring(1);
                    break;
                }
            }

            //What kind of upnp device does not fucking contain this!
            if (location.Length == 0)
                return "";

            //save that bitch!
            this.url = location;

            //then using the location url, we get more information:
            return location;
        }

        private void getXML() {
            XmlDocument xDoc = new XmlDocument(); 
            System.Net.WebClient webClient = new WebClient();
            try
            {
                string ret = webClient.DownloadString(this.url);
                xDoc.LoadXml(ret);
                XmlNodeList typedesc = xDoc.GetElementsByTagName("URLBase");
                this.type = typedesc[0].InnerText;
                urlbase = this.type;
                //Console.WriteLine(this.type);
                //return ret;//return services
                //Console.Write(ret);
                openPortFromService("urn:upnp-org:serviceId:WANIPConn1",
               "urn:schemas-upnp-org:service:WANIPConnection:1", "192.168.1.123", "192.168.1.1", 81, 81);
            }
            catch (System.Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {
                webClient.Dispose();
            }
           
            //return "";
        }

        //This is a bit of a hack, I have to figure out the xml to get the controlURL, but thats not hard.
    private void openPortFromService(string controlURL, String serviceType,
        string machineIP, string firewallIP, int gatewayPort, int
        portToForward)
        {
    
    
            String controlUrl = "";
            controlUrl = "/uuid:0016-b6cf-48690200cbb4/WANIPConnection:1";

            string soapBody = "<s:Envelope " +
            "xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/ \" " +
            "s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/ \">" +
            "<s:Body>" +
            "<u:AddPortMapping xmlns:u=\"" + serviceType + "\">" +
            "<NewRemoteHost></NewRemoteHost>" +
            "<NewExternalPort>" + portToForward.ToString() +
            "</NewExternalPort>" +
            "<NewProtocol>TCP</NewProtocol>" +
            "<NewInternalPort>" + portToForward.ToString() +
            "</NewInternalPort>" +
            "<NewInternalClient>" + machineIP +
            "</NewInternalClient>" +
            "<NewEnabled>1</NewEnabled>" +
            "<NewPortMappingDescription>Altum</NewPortMappingDescription>" +
            "<NewLeaseDuration>0</NewLeaseDuration>" +
            "</u:AddPortMapping>" +
            "</s:Body>" +
            "</s:Envelope>";

            byte[] body =
            System.Text.UTF8Encoding.ASCII.GetBytes(soapBody);

            string url = urlbase + controlUrl.Substring(1);
            Console.WriteLine("------" + url);
            System.Net.WebRequest wr =
            System.Net.WebRequest.Create(url);//+ controlUrl);
            wr.Method = "POST";
            wr.Headers.Add("SOAPAction", "\"" + serviceType +
            "#AddPortMapping\"");
            wr.ContentType = "text/xml;charset=\"utf-8\"";
            wr.ContentLength = body.Length;

            System.IO.Stream stream = wr.GetRequestStream();
            stream.Write(body, 0, body.Length);
            stream.Flush();
            stream.Close();

            WebResponse wres = wr.GetResponse();
            System.IO.StreamReader sr = new
            System.IO.StreamReader(wres.GetResponseStream());
            string ret = sr.ReadToEnd();
            Console.WriteLine(":"+ret);
            sr.Close();

            Debug.WriteLine("Setting port forwarding:" +
            portToForward.ToString() + "\r\r" + ret);
        }
        /*
        public static void OpenFirewallPort(string machineIP, string
       firewallIP, int openPort)
        {
            string svc = getServicesFromDevice(firewallIP);

            openPortFromService(svc, "urn:schemas-upnp-org:service:WANIPConnection:1", machineIP,
            firewallIP, 90, openPort);
            openPortFromService(svc,
            "urn:schemas-upnp-org:service:WANPPPConnection:1", machineIP,
            firewallIP, 90, openPort);
        }*/
    }

    
}