实例介绍
【实例简介】
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | using System;using System.Collections.Generic;using System.Text;using System.Net;using System.Net.Sockets;using System.IO;using System.Collections;namespace WebSocketServer{ public class Logger { public bool LogEvents { get; set; } public Logger() { LogEvents = true; } public void Log(string Text) { if (LogEvents) Console.WriteLine(Text); } } public enum ServerStatusLevel { Off, WaitingConnection, ConnectionEstablished }; public delegate void NewConnectionEventHandler(string loginName,EventArgs e); public delegate void DataReceivedEventHandler(Object sender, string message, EventArgs e); public delegate void DisconnectedEventHandler(Object sender,EventArgs e); public delegate void BroadcastEventHandler(string message, EventArgs e); public class WebSocketServer : IDisposable { private bool AlreadyDisposed; private Socket Listener; private int ConnectionsQueueLength; private int MaxBufferSize; private string Handshake; private StreamReader ConnectionReader; private StreamWriter ConnectionWriter; private Logger logger; private byte[] FirstByte; private byte[] LastByte; private byte[] ServerKey1; private byte[] ServerKey2; List<SocketConnection> connectionSocketList = new List<SocketConnection>(); public ServerStatusLevel Status { get; private set; } public int ServerPort { get; set; } public string ServerLocation { get; set; } public string ConnectionOrigin { get; set; } public bool LogEvents { get { return logger.LogEvents; } set { logger.LogEvents = value; } } public event NewConnectionEventHandler NewConnection; public event DataReceivedEventHandler DataReceived; public event DisconnectedEventHandler Disconnected; private void Initialize() { AlreadyDisposed = false; logger = new Logger(); Status = ServerStatusLevel.Off; ConnectionsQueueLength = 500; MaxBufferSize = 1024 * 100; FirstByte = new byte[MaxBufferSize]; LastByte = new byte[MaxBufferSize]; FirstByte[0] = 0x00; LastByte[0] = 0xFF; logger.LogEvents = true; } public WebSocketServer() { ServerPort = 4141; Initialize(); } public WebSocketServer(int serverPort, string serverLocation, string connectionOrigin) { ServerPort = serverPort; ConnectionOrigin = connectionOrigin; ServerLocation = serverLocation; Initialize(); } ~WebSocketServer() { Close(); } public void Dispose() { Close(); } private void Close() { if (!AlreadyDisposed) { AlreadyDisposed = true; if (Listener != null) Listener.Close(); foreach (SocketConnection item in connectionSocketList) { item.ConnectionSocket.Close(); } connectionSocketList.Clear(); GC.SuppressFinalize(this); } } public static IPAddress getLocalmachineIPAddress() { string strHostName = Dns.GetHostName(); IPHostEntry ipEntry = Dns.GetHostEntry(strHostName); foreach (IPAddress ip in ipEntry.AddressList) { //IPV4 if (ip.AddressFamily == AddressFamily.InterNetwork) return ip; } return ipEntry.AddressList[0]; } public void StartServer() { Char char1 = Convert.ToChar(65533); Listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP); Listener.Bind(new IPEndPoint(getLocalmachineIPAddress(), ServerPort)); Listener.Listen(ConnectionsQueueLength); logger.Log(string.Format("聊天服务器启动。监听地址：{0}, 端口：{1}",getLocalmachineIPAddress(),ServerPort)); logger.Log(string.Format("WebSocket服务器地址: ws://{0}:{1}/chat", getLocalmachineIPAddress(), ServerPort)); while (true) { Socket sc = Listener.Accept(); if (sc != null) { System.Threading.Thread.Sleep(100); SocketConnection socketConn = new SocketConnection(); socketConn.ConnectionSocket = sc; socketConn.NewConnection = new NewConnectionEventHandler(socketConn_NewConnection); socketConn.DataReceived = new DataReceivedEventHandler(socketConn_BroadcastMessage); socketConn.Disconnected = new DisconnectedEventHandler(socketConn_Disconnected); socketConn.ConnectionSocket.BeginReceive(socketConn.receivedDataBuffer, 0, socketConn.receivedDataBuffer.Length, 0, new AsyncCallback(socketConn.ManageHandshake), socketConn.ConnectionSocket.Available); connectionSocketList.Add(socketConn); } } } void socketConn_Disconnected(Object sender, EventArgs e) { SocketConnection sConn = sender as SocketConnection; if (sConn != null) { Send(string.Format("【{0}】离开了聊天室！", sConn.Name)); sConn.ConnectionSocket.Close(); connectionSocketList.Remove(sConn); } } void socketConn_BroadcastMessage(Object sender, string message, EventArgs e) { if (message.IndexOf("login:") != -1) { SocketConnection sConn = sender as SocketConnection; sConn.Name = message.Substring(message.IndexOf("login:") "login:".Length); message = string.Format("欢迎【{0}】来到聊天室！",message.Substring(message.IndexOf("login:") "login:".Length)); } Send(message); } void socketConn_NewConnection(string name, EventArgs e) { if (NewConnection != null) NewConnection(name,EventArgs.Empty); } public void Send(string message) { foreach (SocketConnection item in connectionSocketList) { if (!item.ConnectionSocket.Connected) return; try { if (item.IsDataMasked) { DataFrame dr = new DataFrame(message); item.ConnectionSocket.Send(dr.GetBytes()); } else { item.ConnectionSocket.Send(FirstByte); item.ConnectionSocket.Send(Encoding.UTF8.GetBytes(message)); item.ConnectionSocket.Send(LastByte); } } catch(Exception ex) { logger.Log(ex.Message); } } } }} |
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