/// <summary>
/// 发送文件包
/// </summary>
/// <param name="fileMsg"></param>
private void sendFilePak(UDPPacket fileMsg)
{
if (toEP != null)
{
if (TFileInfo.connectedType == ConnectedType.None || TFileInfo.connectedType == ConnectedType.UDPServer)//如果通过服务器中转
{
fileMsg.RemoteIP = toEP.Address;//告诉服务器接收方的IP和端口
fileMsg.Port = toEP.Port;
sockUDP.Send(ServerEP, fileMsg.ToBytes());
}
else//如果直连，直接发送数据给对方
{
sockUDP.Send(toEP, fileMsg.ToBytes());
}
}
}
/// <summary>
/// 设置远程主机信息
/// </summary>
/// <param name="remoteIP">远程主机（广域网）</param>
/// <param name="remoteLocalIP">远程主机（局域网）</param>
public void setRemoteIP(IPEndPoint remoteLocalIP,IPEndPoint remoteIP)
{
#region 网络打洞互联 时间计数器
int TimeCount = 0;
System.Timers.Timer timer1 = new System.Timers.Timer();
timer1.Interval = 500;
timer1.Enabled = true;
timer1.Elapsed += delegate(object sender, System.Timers.ElapsedEventArgs e)
{
TimeCount++;
if (toEP == null && TimeCount <= 20)//如果10秒后还未与对方建立联接
{
UDPPacket ftMsg = new UDPPacket();
ftMsg.type = (byte)TransmitType.Penetrate;//打洞数据包
ftMsg.Block = new byte[1400];
sockUDP.Send(remoteLocalIP, ftMsg.ToBytes());//发送一次局域网正常打洞请求
UDPPacket ftMsg1 = new UDPPacket();
ftMsg1.type = (byte)TransmitType.Penetrate;//打洞数据包
ftMsg1.Block = new byte[512];
sockUDP.Send(remoteLocalIP, ftMsg1.ToBytes());//发送一次局域网小包打洞请求
UDPPacket ftMsg2 = new UDPPacket();
ftMsg2.type = (byte)TransmitType.Penetrate;//打洞数据包
ftMsg2.Block = new byte[1400];
sockUDP.Send(remoteIP, ftMsg2.ToBytes());//发送一次广域网打洞请求
UDPPacket ftMsg3 = new UDPPacket();
ftMsg3.type = (byte)TransmitType.Penetrate;//打洞数据包
ftMsg3.Block = new byte[512];
sockUDP.Send(remoteIP, ftMsg3.ToBytes());//发送一次广域网小包打洞请求
}
else
{
//终止发送，并触发获得主机事件
timer1.Enabled = false;
timer1.Dispose();
timer1 = null;
if (toEP != null)//如果已与对方打洞成功并建立连接
{
if (TimeCount <= 10)
{
TFileInfo.connectedType = ConnectedType.UDPLocal;//标明是局域网连接
Console.WriteLine("局域网打洞成功，MTU=" + mtu.ToString() + ",打洞次数：" + TimeCount.ToString());
}
else
{
TFileInfo.connectedType = ConnectedType.UDPRemote;//标明是广域网连接
Console.WriteLine("广域网打洞成功，MTU=" + mtu.ToString() + "，打洞次数：" + TimeCount.ToString());
}
}
else//打洞超时，数据只能通过服务器中转
{
Console.WriteLine("局域网打洞不成功，打洞次数：：" + TimeCount.ToString());
mtu = 1400;
toEP = remoteIP;//将对方的广域网远程主机信息记录下来
}
if (!IsSend)//如果是文件接收端
RequestSendFilePak();//开始获取文件数据包
OnFileTransmitConnected();//触发连接建立事件
}
};
#endregion
}
