//功能 : 廣播訊息給所有使用者 (如果連線列表有更新的話優先傳送)
public void messageBroadcast(object sender, TalkmessageEventArgs e)
{
BinaryFormatter bin = new BinaryFormatter();
foreach (Talkconnection talkconnection in connectionlist)
{
if (talkconnection.Client.Connected)
{
NetworkStream clientStream = talkconnection.Client.GetStream();
byte[] messageType = encoder.GetBytes(e.MessageType);
byte[] message = new byte[4096];
clientStream.Write(messageType, 0, messageType.Length);
if (e.MessageType.CompareTo("TEXT") == 0)
{
clientStream.Write(encoder.GetBytes(e.Message), 0, e.Message.Length);
}
if (e.MessageType.CompareTo("USER") == 0)
{
bin.Serialize(clientStream, userlist);
}
}
else
{
continue;
}
}
}
private void clientProc(object client)
{
//獲取網路資訊
TcpClient tcpClient = (TcpClient)client;
NetworkStream clientStream = tcpClient.GetStream();
Talkconnection connection = new Talkconnection(tcpClient);
//建立使用者資訊
byte[] nickname = new byte[4096];
clientStream.Read(nickname, 0, nickname.Length);
connection.ClientUser.Username = encoder.GetString(nickname);
//新增到訊息處理器
talkmessagehandler.addconnection(connection);
connection.messageComing(new TalkmessageEventArgs("", connection.ClientUser.Username, "USER", connection));
updateUI("[", "Monitor");
updateUI(connection.ClientUser.Username, "Monitor");
updateUI(" is online.]\n", "Monitor");
updateUI(connection.ClientUser.Username, "List");
//從client不斷接收訊息
while (true)
{
byte[] message = new byte[4096];
int bytesRead = 0;
try
{
//從client讀入訊息
bytesRead = clientStream.Read(message, 0, message.Length);
//觸發messageEvent (通知talkmessagehandler 廣播訊息)
TalkmessageEventArgs e = new TalkmessageEventArgs(Encoding.Unicode.GetString(message), connection.ClientUser.Username, "TEXT", connection);
connection.messageComing(e);
//更新ServerUI
updateUI(e.Message, "Monitor");
}
catch
{
//在Server monitor上顯示錯誤訊息
}
if (bytesRead == 0)
{
break;
}
}
talkmessagehandler.removeconnection(connection);
connection.messageComing(new TalkmessageEventArgs("", connection.ClientUser.Username, "USER", connection));
updateUI(connection.ClientUser.Username, "List-r");
updateUI("[", "Monitor");
updateUI(connection.ClientUser.Username, "Monitor");
updateUI(" is offline.]\n", "Monitor");
tcpClient.Close();
}