与我的c#服务器的TCP Javascript客户端连接
我试图与我的Javascript浏览器客户端和TCP C#服务器建立一个简单的连接，我能够将数据从Javascript发送到C#，但是我在服务器上得到奇怪的字符响应，而不是消息本身。我对javascript没有任何经验，我的TCP/Sockets知识几乎为零，但我正在努力学习 问题是： 当我发送数据时，我可以在c#服务器上获取数据，但作为一个奇怪的角色（滚动到末尾查看），我如何进行适当的握手？我已经在谷歌上搜索并尝试过了，但我仍然没有得到任何结果 这是JS与我的c#服务器的TCP Javascript客户端连接,javascript,c#,tcp,Javascript,C#,Tcp,我试图与我的Javascript浏览器客户端和TCP C#服务器建立一个简单的连接，我能够将数据从Javascript发送到C#，但是我在服务器上得到奇怪的字符响应，而不是消息本身。我对javascript没有任何经验，我的TCP/Sockets知识几乎为零，但我正在努力学习 问题是： 当我发送数据时，我可以在c#服务器上获取数据，但作为一个奇怪的角色（滚动到末尾查看），我如何进行适当的握手？我已经在谷歌上搜索并尝试过了，但我仍然没有得到任何结果 这是JS <html> <
<html>
<head>
<script type = "text/javascript">
function WebSocketTest() {
if ("WebSocket" in window) {
alert("WebSocket is supported by your Browser!");
// Let us open a web socket
var ws = new WebSocket("ws://localhost:26950/echo");
ws.onopen = function() {
// Web Socket is connected, send data using send()
ws.send("Message to send");
alert("Message is sent...");
};
ws.onmessage = function (evt) {
var received_msg = evt.data;
alert("Message is received...");
};
ws.onclose = function() {
// websocket is closed.
alert("Connection is closed...");
};
} else {
// The browser doesn't support WebSocket
alert("WebSocket NOT supported by your Browser!");
}
}
</script>
</head>
<body>
<div id = "sse">
<a href = "javascript:WebSocketTest()">Run WebSocket</a>
</div>
</body>
</html>
public static void RecieveData(object _obj)
{
TcpClient client = (TcpClient)_obj;
NetworkStream stream = client.GetStream();
StreamReader sr = new StreamReader(client.GetStream());
StreamWriter sw = new StreamWriter(client.GetStream());
string username = "";
while (true)
{
if(client.Connected)
{
if (client.Client.Poll(0, SelectMode.SelectRead))
{
byte[] buff = new byte[1];
if (client.Client.Receive(buff, SocketFlags.Peek) == 0)
{
connectedClients.Remove(username);
// Client disconnected
break;
}
}
try
{
byte[] buffer = new byte[1024];
stream.Read(buffer, 0, buffer.Length);
int recv = 0;
foreach (byte b in buffer)
{
if (b != 0)
{
recv++;
}
}
string request = Encoding.UTF8.GetString(buffer, 0, recv);
Console.WriteLine("request received" + request);
if (new Regex("^GET").IsMatch(request)) // Handshaking protocol
{
Byte[] response = Encoding.UTF8.GetBytes("HTTP/1.1 101 Switching Protocols" + Environment.NewLine
+ "Connection: Upgrade" + Environment.NewLine
+ "Upgrade: websocket" + Environment.NewLine
+ "Sec-WebSocket-Accept: " + Convert.ToBase64String(
SHA1.Create().ComputeHash(
Encoding.UTF8.GetBytes(
new Regex("Sec-WebSocket-Key: (.*)").Match(request).Groups[1].Value.Trim() + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
)
)
) + Environment.NewLine
+ Environment.NewLine);
stream.Write(response, 0, response.Length);
}
else
{
string msg = DecodeMessage(buffer);
Console.WriteLine(msg);
stream.Flush();
}
}
catch (Exception e)
{
Console.WriteLine("Something went wrong." + e.Message);
sw.WriteLine(e.ToString());
}
}
}
}
public static string DecodeMessage(byte[] bytes)
{
string incomingData = string.Empty;
byte secondByte = bytes[1];
int dataLength = secondByte & 127;
int indexFirstMask = 2;
if (dataLength == 126)
indexFirstMask = 4;
else if (dataLength == 127)
indexFirstMask = 10;
IEnumerable<byte> keys = bytes.Skip(indexFirstMask).Take(4);
int indexFirstDataByte = indexFirstMask + 4;
byte[] decoded = new byte[bytes.Length - indexFirstDataByte];
for (int i = indexFirstDataByte, j = 0; i < bytes.Length; i++, j++)
{
decoded[j] = (byte)(bytes[i] ^ keys.ElementAt(j % 4));
}
return incomingData = Encoding.UTF8.GetString(decoded, 0, decoded.Length);
}
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