websocket已成功握手,但未正确发送接收消息(C#服务器)
打了一上午的架后,我得到了工作上的握手,但现在我被困在了发送和接收信息的过程中。我一直在寻找答案,但毫无结果,所以我想我最终会站到这里问:/ 到目前为止,我的客户非常简单:websocket已成功握手,但未正确发送接收消息(C#服务器),c#,.net,html,google-chrome,websocket,C#,.net,Html,Google Chrome,Websocket,打了一上午的架后,我得到了工作上的握手,但现在我被困在了发送和接收信息的过程中。我一直在寻找答案,但毫无结果,所以我想我最终会站到这里问:/ 到目前为止,我的客户非常简单: function testWebSocket() { if (!window.WebSocket) { alert('WebSockets are NOT supported by your browser.'); return; } try { va
function testWebSocket() {
if (!window.WebSocket) {
alert('WebSockets are NOT supported by your browser.');
return;
}
try {
var ws = new WebSocket('ws://localhost:8181/websession');
ws.onopen = function () {
alert('Handshake successfully established. Ready for data...');
};
ws.onmessage = function (e) {
alert('Got WebSockets message: ' + e.data);
}
ws.onclose = function () {
alert('Connection closed.');
};
}
catch (e) {
alert(e);
}
}
是的,我已经为此借用了很多代码……我只是想通过一个简单的“聊天应用程序”获得概念证明
我的服务器主要由两个类组成,SocketServer.cs和SocketClient.cs
它们如下:
SocketServer.cs
使用系统;
使用System.Collections.Generic;
使用系统文本;
使用System.Net.Sockets;
Net系统;
使用System.IO;
命名空间WebSocketServer.Entities
{
类SocketServer
{
公共静态表单1父表单;
tcplistenersocketserver;
public static List ClientList=new List();
公共SocketServer(Form1 pForm)
{
parentForm=pForm;
parentForm.ApplyText(“套接字类已启动\r\n”);
socketServer=newtcplistener(IPAddress.Any,8181);
//告诉控制台它已启动
parentForm.ApplyText(“套接字服务器已启动\r\n”);
//创建连续循环以侦听新连接
//启动侦听器
socketServer.Start();
while(true)
{
//检查是否有任何传入的挂起连接
//为新连接创建新套接字客户端
TcpClient socketConnection=socketServer.AcceptTcpClient();
DateTime now=DateTime.now;
//向控制台写入消息以指示新连接
parentForm.ApplyText(“新连接的客户端-”+now.ToString(“MM/dd/yyyy h:MM:ss tt”)+“\r\n”);
//为此连接创建新的客户端对象
SocketClient SocketClient=新的SocketClient(socketConnection,父窗体);
}
}
公共静态void CloseClient(SocketClient whichClient)
{
ClientList.Remove(whichClient);
whichClient.Client.Close();
//处理客户端对象
whichClient.Dispose();
whichClient=null;
parentForm.ApplyText(“客户端已断开连接\r\n”);
}
公共静态void SendTextToClient(SocketClient sc,字符串文本)
{
StreamWriter writer=新的StreamWriter(sc.Client.GetStream());
//检查客户端是否仍然连接,然后发送文本字符串
尝试
{
如果(sc.Client.Connected)
{
writer.WriteLine(文本);
writer.Flush();
writer=null;
}
}
抓住
{
客户(sc);
}
}
公共静态无效发送广播(字符串文本)
{
流作者;
//循环遍历数组并向所有客户端发送文本
foreach(客户端列表中的SocketClient客户端)
{
if(client.client.Connected)
{
尝试
{
writer=newstreamwriter(client.client.GetStream());
writer.WriteLine(文本);
writer.Flush();
writer=null;
}
抓住
{
客户(客户);
}
}
}
}
}
}
SocketClient.cs
使用系统;
使用System.Collections.Generic;
使用系统文本;
使用System.Net.Sockets;
使用System.IO;
使用系统线程;
使用System.Security.Cryptography;
命名空间WebSocketServer.Entities
{
类SocketClient
{
公共TCP客户机;
流阅读器;
流作者;
表格1家长表格;
公共SocketClient(TcpClient客户端,Form1 pForm)
{
parentForm=pForm;
客户=客户;
线程clientThread=newthread(newthreadstart(StartClient));
clientThread.Start();
}
私有void StartClient()
{
SocketServer.ClientList.Add(这个);
//为此客户端创建读取器
reader=newstreamreader(Client.GetStream());
//为此客户端创建一个编写器
writer=newstreamwriter(Client.GetStream());
var headers=newdictionary();
字符串行=”;
而((line=reader.ReadLine())!=string.Empty)
{
如果(!string.IsNullOrEmpty(行))
{
var tokens=line.Split(新字符[]{':'},2);
如果(!string.IsNullOrWhiteSpace(line)&&tokens.Length>1)
{
headers[tokens[0]]=tokens[1].Trim();
}
}
}
字符串secWebSocketAccept=ComputeWebSocketAshakeSecurityHash09(头文件[“secWebSocketKey”]);
//仅向此客户端发送握手
WriteLine(“HTTP/1.1 101 Web套接字协议握手”);
WriteLine(“升级:WebSocket”);
writer.WriteLine(“连接:升级”);
writer.WriteLine(“WebSocket来源:http://localhost:63422/");
WriteLine(“WebSocket位置:ws://localhost:8181/websession”);
WriteLine(“SecWebSocket接受:+SecWebSocket接受”);
writer.WriteLine(“”);
writer.Flush();
SendBroadcast(“新客户端已连接”);
线程clientRun=新线程(新线程开始(RunClient));
clientRun.Start();
}
公共静态字符串ComputeWebSocketHand
using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.IO;
namespace WebSocketServer.Entities
{
class SocketServer
{
public static Form1 parentForm;
TcpListener socketServer;
public static List<SocketClient> ClientList = new List<SocketClient>();
public SocketServer(Form1 pForm)
{
parentForm = pForm;
parentForm.ApplyText("Socket Class Initiated\r\n");
socketServer = new TcpListener(IPAddress.Any, 8181);
// tell the console that it's started
parentForm.ApplyText("Socket Server Started\r\n");
// create continuous loops to listen for new connections
// start the listener
socketServer.Start();
while (true)
{
// check for any incoming pending connections
// create new socket client for new connection
TcpClient socketConnection = socketServer.AcceptTcpClient();
DateTime now = DateTime.Now;
//write message to console to indicate new connection
parentForm.ApplyText("New Client Connected - " + now.ToString("MM/dd/yyyy h:mm:ss tt") + "\r\n");
// create new client object for this connection
SocketClient socketClient = new SocketClient(socketConnection, parentForm);
}
}
public static void CloseClient(SocketClient whichClient)
{
ClientList.Remove(whichClient);
whichClient.Client.Close();
// dispose of the client object
whichClient.Dispose();
whichClient = null;
parentForm.ApplyText("Client Disconnected\r\n");
}
public static void SendTextToClient(SocketClient sc, string text)
{
StreamWriter writer = new StreamWriter(sc.Client.GetStream());
// check if client is still connected, then send the text string
try
{
if (sc.Client.Connected)
{
writer.WriteLine(text);
writer.Flush();
writer = null;
}
}
catch
{
CloseClient(sc);
}
}
public static void SendBroadcast(string text)
{
StreamWriter writer;
// loop through the array and send text to all clients
foreach (SocketClient client in ClientList)
{
if (client.Client.Connected)
{
try
{
writer = new StreamWriter(client.Client.GetStream());
writer.WriteLine(text);
writer.Flush();
writer = null;
}
catch
{
CloseClient(client);
}
}
}
}
}
}
using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.IO;
using System.Threading;
using System.Security.Cryptography;
namespace WebSocketServer.Entities
{
class SocketClient
{
public TcpClient Client;
StreamReader reader;
StreamWriter writer;
Form1 parentForm;
public SocketClient(TcpClient client, Form1 pForm)
{
parentForm = pForm;
Client = client;
Thread clientThread = new Thread(new ThreadStart(StartClient));
clientThread.Start();
}
private void StartClient()
{
SocketServer.ClientList.Add(this);
// create a reader for this client
reader = new StreamReader(Client.GetStream());
// create a writer for this client
writer = new StreamWriter(Client.GetStream());
var headers = new Dictionary<string, string>();
string line = "";
while ((line = reader.ReadLine()) != string.Empty)
{
if (!string.IsNullOrEmpty(line))
{
var tokens = line.Split(new char[] { ':' }, 2);
if (!string.IsNullOrWhiteSpace(line) && tokens.Length > 1)
{
headers[tokens[0]] = tokens[1].Trim();
}
}
}
String secWebSocketAccept = ComputeWebSocketHandshakeSecurityHash09(headers["Sec-WebSocket-Key"]);
// send handshake to this client only
writer.WriteLine("HTTP/1.1 101 Web Socket Protocol Handshake");
writer.WriteLine("Upgrade: WebSocket");
writer.WriteLine("Connection: Upgrade");
writer.WriteLine("WebSocket-Origin: http://localhost:63422/");
writer.WriteLine("WebSocket-Location: ws://localhost:8181/websession");
writer.WriteLine("Sec-WebSocket-Accept: " + secWebSocketAccept);
writer.WriteLine("");
writer.Flush();
SocketServer.SendBroadcast("New Client Connected");
Thread clientRun = new Thread(new ThreadStart(RunClient));
clientRun.Start();
}
public static String ComputeWebSocketHandshakeSecurityHash09(String secWebSocketKey)
{
const String MagicKEY = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
String secWebSocketAccept = String.Empty;
// 1. Combine the request Sec-WebSocket-Key with magic key.
String ret = secWebSocketKey + MagicKEY;
// 2. Compute the SHA1 hash
SHA1 sha = new SHA1CryptoServiceProvider();
byte[] sha1Hash = sha.ComputeHash(Encoding.UTF8.GetBytes(ret));
// 3. Base64 encode the hash
secWebSocketAccept = Convert.ToBase64String(sha1Hash);
return secWebSocketAccept;
}
private void RunClient()
{
try
{
string line = "";
while (true)
{
line = reader.ReadLine();
if (!string.IsNullOrEmpty(line))
{
parentForm.ApplyText(line + "\r\n");
SocketServer.SendBroadcast(line);
}
}
}
catch
{
parentForm.ApplyText("Client Disconnected\r\n");
SocketServer.CloseClient(this);
}
}
public void Dispose()
{
System.GC.SuppressFinalize(this);
}
}
}
public static void SendBroadcast(string text)
{
StreamWriter writer;
// loop through the array and send text to all clients
foreach (SocketClient client in ClientList)
{
if (client.Client.Connected)
{
try
{
NetworkStream l_Stream = client.Client.GetStream();
List<byte> lb = new List<byte>();
lb.Add(0x81);
lb.Add(0x04);
lb.AddRange(Encoding.UTF8.GetBytes("test"));
l_Stream.Write(lb.ToArray(), 0, 6);
}
catch
{
CloseClient(client);
}
}
}
}
lb = new List<byte>();
lb.Add(0x81);
size = message.Length;//get the message's size
lb.Add((byte)size); //get the size in bytes
lb.AddRange(Encoding.UTF8.GetBytes(message));
stream.Write(lb.ToArray(), 0, size+2); //I do size+2 because we have 2 bytes plus 0x81 and (byte)size