public void GetKey(ref Workstation station)
{
NetworkMessage Sendmsg = new NetworkMessage();
Sendmsg.label = PackageLabel.getkey;
Sendmsg.TimeStamp = DateTime.Now;
Sendmsg.NextIP = basic.CurrentIP;
Sendmsg.Data = null;
byte[] Data = Serialization(Sendmsg);
byte[] key = new byte[100000];
try
{
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
sock.Connect(station.IPAddr, basic.port);
sock.Send(Data, Data.Length, SocketFlags.None);
sock.Receive(key, SocketFlags.None);
sock.Close();
}
catch (SocketException ex)
{
MessageBox.Show(ex.Message, "Ошибка при отправке пакета с запросом на ключ", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Handler(NetworkMessage s, IPAddress ip)
{
//MessageBox.Show("Мы знаем, что пришло сообщение : " + s);
switch (s.label)
{
case (PackageLabel.final):
{
foreach (Chat C in AllChats)
{
if (ip.ToString() == C.CurrentWorkstation.IPAddr.ToString())
{
C.ShowString(Encoding.UTF8.GetString(s.Data));
return;
}
}
// Workstation SetCurrentWorkstation;
for (int i = 0; i < client.workstations.Count; i++)
{
if (client.workstations[i].IPAddr.ToString() == ip.ToString())
{
client.workstations[i].buffer += Encoding.UTF8.GetString(s.Data) + "\r\n";
client.workstations[i].couner++;
}
}
break;
}
case (PackageLabel.openkey):
{
for (int i = 0; i < client.workstations.Count; i++)
{
if (client.workstations[i].IPAddr.ToString() == ip.ToString())
{
client.workstations[i].publickey = Encoding.UTF8.GetString(s.Data);
}
}
break;
}
}//switch
}
public void SendString(String str, Workstation IP)
{
Random rnd = new Random();
log.printlog("[send] IP: " + IP.IPAddr.ToString() + " msg: " + str);
/*Разметка приемочного пакета*/
NetworkMessage Sendmsg = new NetworkMessage();
Sendmsg.label = PackageLabel.final; //Финальный пакет
Sendmsg.TimeStamp = DateTime.Now; //Будет иметь временной штамп,
Sendmsg.NextIP = basic.CurrentIP; //IP отправителя (то есть текущий)
Encoding Utf8 = Encoding.UTF8;
Sendmsg.Data = Utf8.GetBytes(str); //и данные.
/*Этот пакет должен иметь "транзитника последней мили"
чтобы адес отправителя всегда был равен нужному приемнику*/
String TunnelPath = "";
NetworkMessage Buffer = new NetworkMessage();
Buffer.Data = RSAEncrypt(Serialization(Sendmsg), IP.publickey);
Buffer.TimeStamp = DateTime.Now;
Buffer.label = PackageLabel.transit;
Buffer.NextIP = IP.IPAddr;
TunnelPath += IP.IPAddr.ToString() + " ";
Sendmsg = Buffer;
for (int i = 0; i < layernum-1; i++)
{
int rand = rnd.Next(workstations.Count);
Buffer.Data = RSAEncrypt(Serialization(Sendmsg), workstations[rand].publickey);
Buffer.TimeStamp = DateTime.Now;
Buffer.label = PackageLabel.transit;
Buffer.NextIP = workstations[rand].IPAddr;
TunnelPath += workstations[rand].IPAddr.ToString() + " ";
Sendmsg = Buffer;
}
int rnd_next = rnd.Next(workstations.Count);
//MessageBox.Show("Сообщение готовится к отправке по туннелю");
basic.SendNext(workstations[rnd_next].IPAddr, RSAEncrypt(Serialization(Sendmsg), workstations[rnd_next].publickey), log);
log.printlog("[tunnel] size: " + layernum.ToString() + " path: " + TunnelPath + " " + workstations[rnd_next].IPAddr.ToString());
}
public void SendNonEncryptMessage(NetworkMessage msg, IPAddress IP)
{
basic.SendNext(IP, Serialization(msg), log);
}