using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

using System.Net;

using System.IO;

​

public class GoogleCellId

    {

        private static byte[] GetPostData(UInt32 mcc, UInt32 mnc, UInt32 cellId, UInt32 lac)

        {

            byte[] pd = new byte[]

            {

                0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

                0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0xff,

                0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00

            };

​

            if (cellId > 65536)

            {

                pd[0x1c] = 5;

            }

            else

            {

                pd[0x1c] = 3;

            }

​

            pd[0x11] = (byte)((mnc >> 24) & 0xFF);

            pd[0x12] = (byte)((mnc >> 16) & 0xFF);

            pd[0x13] = (byte)((mnc >> 8) & 0xFF);

            pd[0x14] = (byte)((mnc >> 0) & 0xFF);

​

            pd[0x15] = (byte)((mcc >> 24) & 0xFF);

            pd[0x16] = (byte)((mcc >> 16) & 0xFF);

            pd[0x17] = (byte)((mcc >> 8) & 0xFF);

            pd[0x18] = (byte)((mcc >> 0) & 0xFF);

​

            pd[0x27] = (byte)((mnc >> 24) & 0xFF);

            pd[0x28] = (byte)((mnc >> 16) & 0xFF);

            pd[0x29] = (byte)((mnc >> 8) & 0xFF);

            pd[0x2a] = (byte)((mnc >> 0) & 0xFF);

​

            pd[0x2b] = (byte)((mcc >> 24) & 0xFF);

            pd[0x2c] = (byte)((mcc >> 16) & 0xFF);

            pd[0x2d] = (byte)((mcc >> 8) & 0xFF);

            pd[0x2e] = (byte)((mcc >> 0) & 0xFF);

​

            pd[0x1f] = (byte)((cellId >> 24) & 0xFF);

            pd[0x20] = (byte)((cellId >> 16) & 0xFF);

            pd[0x21] = (byte)((cellId >> 8) & 0xFF);

            pd[0x22] = (byte)((cellId >> 0) & 0xFF);

​

            pd[0x23] = (byte)((lac >> 24) & 0xFF);

            pd[0x24] = (byte)((lac >> 16) & 0xFF);

            pd[0x25] = (byte)((lac >> 8) & 0xFF);

            pd[0x26] = (byte)((lac >> 0) & 0xFF);

​

            return pd;

        }

​

        static public Tuple<int, decimal, decimal> GetLatLng(UInt16 mcc, UInt16 mnc, UInt32 cellId, UInt32 lac)

        {

            byte[] pd = GetPostData(mcc, mnc, cellId, lac);

​

            try

            {

                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(new Uri("http://www.google.com/glm/mmap"));

                req.Method = "POST";

                req.ContentLength = pd.Length;

                req.ContentType = "application/binary";

​

                Stream outputStream = req.GetRequestStream();

                outputStream.Write(pd, 0, pd.Length);

                outputStream.Close();

​

                HttpWebResponse res = (HttpWebResponse)req.GetResponse();

​

                byte[] ps = new byte[res.ContentLength];

                int totalBytesRead = 0;

​

                while (totalBytesRead < ps.Length)

                {

                    totalBytesRead += res.GetResponseStream().Read(ps, totalBytesRead, ps.Length - totalBytesRead);

                }

                Console.WriteLine("binary data:");

                foreach (var binaryData in ps) {

                    Console.WriteLine(binaryData);

                }

​

                if (res.StatusCode == HttpStatusCode.OK)

                {

                    short opcode1 = (short)(ps[0] << 8 | ps[1]);

                   byte opcode2 = ps[2];

                    int ret_code = (int)((ps[3] << 24) | (ps[4] << 16) | (ps[5] << 8) | (ps[6]));

                    Console.WriteLine("opcode1: " + opcode1 + ", opcode2: " + opcode2 + ", ret_code: " + ret_code);

​

                    if (ret_code == 0)

                    {

                        double lat = ((double)((ps[7] << 24) | (ps[8] << 16) | (ps[9] << 8) | (ps[10]))) / 1000000;

                        double lon = ((double)((ps[11] << 24) | (ps[12] << 16) | (ps[13] << 8) | (ps[14]))) / 1000000;

​

                        return Tuple.Create(0, (decimal)lat, (decimal)lon);

                    }

                }

            }

            catch

            {

                Tuple.Create(-2, (decimal)0.0, (decimal)0.0);

            }

​

            return Tuple.Create(-1, (decimal)0.0, (decimal)0.0);

        }

    }

​

public class Program

{

    public static void Main()

    {

        var mmap = GoogleCellId.GetLatLng(UInt16.Parse("260"), UInt16.Parse("1"), UInt32.Parse(""), UInt32.Parse("11029"));

        Console.WriteLine("MMap result " + mmap.ToString());

    }

}