private void Receive()
{
while (isStart)
{
try
{
var bytes = udpClient.Receive(ref remote);
Message msg = Common.Deserialize <Message>(bytes);
if (msg == null)
{
continue;
}
switch (msg.type)
{
case MessageType.PING:
{
if (server.EqualsValue(remote))
{
Interlocked.Exchange(ref pingNum, 0);
}
}
break;
case MessageType.LOGIN:
{
if (server.EqualsValue(remote))
{
currentUser.id = new Guid(msg.content);
Console.WriteLine("用户Id已更新：" + currentUser.id);
}
}
break;
case MessageType.LIST:
{
if (server.EqualsValue(remote))
{
dcUser = Common.Deserialize <Dictionary <Guid, User> >(msg.content);
OnUpdateUser(new UserList {
dictinary = dcUser
});
}
}
break;
case MessageType.P2PSOMEONECALLYOU:
{
if (server.EqualsValue(remote))
{
if (dcUser.ContainsKey(msg.userId))
{
bytes = Common.Serialize(new Message {
type = MessageType.P2PACCEPT, userId = currentUser.id
});
udpClient.Send(bytes, bytes.Length, dcUser[msg.userId].address);
Console.WriteLine("P2PSOMEONECALLYOU收到来自服务器P2P请求申请，来自用户{0}[{1}]", dcUser[msg.userId].userName, dcUser[msg.userId].address);
}
}
}
break;
case MessageType.MSG:
{
if (dcUser.ContainsKey(msg.userId) && dcUser[msg.userId].address.EqualsValue(remote))
{
bytes = Common.Serialize(new Message {
type = MessageType.ACK, userId = currentUser.id
});
udpClient.Send(bytes, bytes.Length, dcUser[msg.userId].address);
OnReceiveMessage(new TextMessage {
userName = dcUser[msg.userId].userName, content = Encoding.UTF8.GetString(msg.content), address = remote
});
}
}
break;
case MessageType.ACK:
{
if (dcUser.ContainsKey(msg.userId) && dcUser[msg.userId].address.EqualsValue(remote))
{
if (dcAck.ContainsKey(msg.userId) && dcAck[msg.userId].ack == 0)
{
dcAck[msg.userId].ack = 1;
}
Console.WriteLine("ACK收到来自用户：{0}[{1}]的消息已送达回执", dcUser[msg.userId].userName, dcUser[msg.userId].address);
}
}
break;
case MessageType.P2PACCEPT:
{
Console.WriteLine("P2PACCEPT收到来自p2p申请用户的回执，来自用户{0}[{1}]", dcUser[msg.userId].userName, dcUser[msg.userId].address);
//收到这个消息代表P2P打洞已建立,如果有缓存消息发送出去
if (dcAck[msg.userId].buffer != null)
{
udpClient.Send(dcAck[msg.userId].buffer, dcAck[msg.userId].buffer.Length, dcUser[msg.userId].address);
dcAck[msg.userId].buffer = null;
Console.WriteLine("发送缓存消息");
}
}
break;
}
}
catch (SocketException ex)
{
Console.WriteLine(ex.Message);
Thread.Sleep(1000);
continue;
}
}
}
private void Receive()
{
while (isStart)
{
var bytes = udpClient.Receive(ref remote);
Message msg = Common.Deserialize <Message>(bytes);
if (msg == null)
{
continue;
}
lock (lockobject)
{
switch (msg.type)
{
case MessageType.PING:
{
if (dcUser.ContainsKey(msg.userId))
{
bytes = Common.Serialize(new Message {
type = MessageType.PING
});
udpClient.Send(bytes, bytes.Length, dcUser[msg.userId].address);
dcPingNum[msg.userId] = 1;
if (!remote.EqualsValue(dcUser[msg.userId].address))
{
//外网端口可能发生变化如果长时间没有连接的话，但是一直发送ping的时候发现端口没有变化
Console.WriteLine("地址发生变化，用户{0}[{1}],真实地址：{2}", dcUser[msg.userId].userName, dcUser[msg.userId].address, remote);
dcUser[msg.userId].address = remote;
}
}
}
break;
case MessageType.LOGIN:
{
var user = new User {
id = Guid.NewGuid(), userName = Encoding.UTF8.GetString(msg.content), address = remote
};
dcUser.Add(user.id, user);
dcPingNum.Add(user.id, 1);
bytes = Common.Serialize(new Message {
type = MessageType.LOGIN, content = user.id.ToByteArray()
});
udpClient.Send(bytes, bytes.Length, user.address);
Console.WriteLine("已发送login到{0}[{1}],guid:{2}", user.userName, user.address, user.id);
SendUserList();
}
break;
case MessageType.LIST:
{
if (dcUser.ContainsKey(msg.userId))
{
var content = Common.Serialize(dcUser);
bytes = Common.Serialize(new Message {
type = MessageType.LIST, content = content
});
udpClient.Send(bytes, bytes.Length, remote);
Console.WriteLine("已发送list到{0}[{1}],真实发送地址：{2}", dcUser[msg.userId].userName, dcUser[msg.userId].address, remote);
}
}
break;
case MessageType.P2PREQUEST:
{
if (dcUser.ContainsKey(msg.userId))
{
var guid = Guid.Parse(Encoding.UTF8.GetString(msg.content));
if (dcUser.ContainsKey(guid))
{
bytes = Common.Serialize(new Message {
type = MessageType.P2PSOMEONECALLYOU, userId = msg.userId
});
udpClient.Send(bytes, bytes.Length, dcUser[guid].address);
Console.WriteLine("已发送P2P请求到{0}[{1}],发送人：{2}[{3}],发送人真实地址：{4}", dcUser[guid].userName, dcUser[guid].address, dcUser[msg.userId].userName, dcUser[msg.userId].address, remote);
}
}
}
break;
case MessageType.EXIT:
{
if (dcUser.ContainsKey(msg.userId))
{
Console.WriteLine("收到用户{0}[{1}]的离线通知，真实地址{2}", dcUser[msg.userId].userName, dcUser[msg.userId].address, remote);
dcUser.Remove(msg.userId);
dcPingNum.Remove(msg.userId);
SendUserList();
}
}
break;
}
}
}
}