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UDP.cs
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UDP.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using SMSMCsharp.PDU;
using eSMSC;
namespace SMSMCsharp
{
public static class UDP
{
public static System.Net.Sockets.UdpClient Socket = new System.Net.Sockets.UdpClient();
public static void SendMessage(byte[] toSend)
{
Socket.Send(toSend, toSend.Length, (string)Program.AppReader.GetValue("hostname", typeof(string)), (int)Program.AppReader.GetValue("port", typeof(int)));
}
public static void Start()
{
Socket.Client.Bind(new IPEndPoint(IPAddress.Any, 1337));
Socket.BeginReceive(ReceiveUDP, null);
}
public static void SendSMS(string message, string to, string from)
{
var toSend = new SMS_Deliver();
toSend.UserData = Encoding.ASCII.GetBytes(message);
var addressType = new AddressField.AddressType
{
NumberPlan = AddressField.AddressType.NumberingPlanIdentification.National,
NumberType = AddressField.AddressType.TypeOfNumber.Subscriber
};
toSend.OrigninatingAddress = new AddressField()
{
AddressValue = Encoding.ASCII.GetBytes(from),
TypeOfAddress = addressType
};
var bMessage = toSend.BinaryForm;
var bTo = Encoding.ASCII.GetBytes(to);
var bytesToSend = new List<byte>();
bytesToSend.Add((byte)bTo.Length);
bytesToSend.AddRange(bTo);
bytesToSend.AddRange(bMessage);
SendMessage(bytesToSend.ToArray());
}
private static void ReceiveUDP(IAsyncResult ar)
{
var u = (UdpClient)((UdpState)(ar.AsyncState)).u;
var e = (IPEndPoint)((UdpState)(ar.AsyncState)).e;
var rawBytes = new List<byte>();
rawBytes.AddRange(u.EndReceive(ar, ref e));
var FromAddress = rawBytes.GetRange(1, rawBytes[0]);
var receiveBytes = rawBytes.GetRange(rawBytes[0] + 1, rawBytes.Count - 1 - rawBytes[0]).ToArray();
switch ((PDUbase.MessageTypeIndicator)receiveBytes[0])
{
case PDUbase.MessageTypeIndicator.DeliverReport:
case PDUbase.MessageTypeIndicator.Command:
break;
case PDUbase.MessageTypeIndicator.Submit:
var packet = new SMS_Submit {BinaryForm = receiveBytes};
var hairpin = packet.DestinationAddress.ToString().StartsWith("21") ||
packet.DestinationAddress.ToString().StartsWith("11");
if (hairpin)
{
UDP.SendSMS(packet.UserData.ToString(), packet.DestinationAddress.ToString(), FromAddress.ToString());
break;
}
Http.SendSMS(packet.UserData.ToString(), packet.DestinationAddress.ToString(), "");
break;
default:
break;
}
}
}
public class UdpState
{
public IPEndPoint e;
public UdpClient u;
}
}