private void button3_Click(object sender, EventArgs e)
{
//发送消息给所有在线用户
P2P_TalkMessage msg = new P2P_TalkMessage(textBox1.Text);
foreach (object o in listBox2.Items)
{
User user = o as User;
_server.SendMessage(msg, user.NetPoint);
}
}
//运行线程
private void Run()
{
try
{
byte[] buffer;//接受数据用
while (true)
{
buffer = _client.Receive(ref _remotePoint);//_remotePoint变量返回当前连接的用户IP地址
object msgObj = ObjectSerializer.Deserialize(buffer);
Type msgType = msgObj.GetType();
DoWriteLog("接收到消息:" + msgType.ToString() + " From:" + _remotePoint.ToString());
if (msgType == typeof(S2C_UserListMessage))
{
// 更新用户列表
S2C_UserListMessage usersMsg = (S2C_UserListMessage)msgObj;
_userList.Clear();
foreach (User user in usersMsg.UserList)
{
_userList.Add(user);
}
this.DisplayUsers(_userList);
}
else if (msgType == typeof(S2C_UserAction))
{
//用户动作，新用户登录/用户登出
S2C_UserAction msgAction = (S2C_UserAction)msgObj;
if (msgAction.Action == UserAction.Login)
{
_userList.Add(msgAction.User);
this.DisplayUsers(_userList);
}
else if (msgAction.Action == UserAction.Logout)
{
User user = _userList.Find(msgAction.User.UserName);
if (user != null)
{
_userList.Remove(user);
}
this.DisplayUsers(_userList);
}
}
else if (msgType == typeof(S2C_HolePunchingMessage))
{
//接受到服务器的打洞命令
S2C_HolePunchingMessage msgHolePunching = (S2C_HolePunchingMessage)msgObj;
//NAT-B的用户给NAT-A的用户发送消息,此时UDP包肯定会被NAT-A丢弃，
//因为NAT-A上并没有A->NAT-B的合法Session, 但是现在NAT-B上就建立了有B->NAT-A的合法session了!
P2P_HolePunchingTestMessage msgTest = new P2P_HolePunchingTestMessage(_LocalUserName);
this.SendMessage(msgTest, msgHolePunching.RemotePoint);
}
else if (msgType == typeof(P2P_HolePunchingTestMessage))
{
//UDP打洞测试消息
//_HoleAccepted = true;
P2P_HolePunchingTestMessage msgTest = (P2P_HolePunchingTestMessage)msgObj;
UpdateConnection(msgTest.UserName, _remotePoint);
//发送确认消息
P2P_HolePunchingResponse response = new P2P_HolePunchingResponse(_LocalUserName);
this.SendMessage(response, _remotePoint);
}
else if (msgType == typeof(P2P_HolePunchingResponse))
{
//_HoleAccepted = true;//打洞成功
P2P_HolePunchingResponse msg = msgObj as P2P_HolePunchingResponse;
UpdateConnection(msg.UserName, _remotePoint);
}
else if (msgType == typeof(P2P_TalkMessage))
{
//用户间对话消息
P2P_TalkMessage workMsg = (P2P_TalkMessage)msgObj;
DoWriteLog(workMsg.Message);
}
else
{
DoWriteLog("收到未知消息!");
}
}
}
catch (Exception ex) { DoWriteLog(ex.Message); }
}
private void button5_Click(object sender, EventArgs e)
{
P2P_TalkMessage msg = new P2P_TalkMessage(textBox1.Text);
User user = listBox1.SelectedItem as User;
_client.SendMessage(msg, user);
}