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| using System; | |
| using System.Collections.Generic; | |
| using System.IO; | |
| using System.Linq; | |
| using System.Net; | |
| using System.Net.Sockets; | |
| using System.Security.Cryptography; | |
| using System.Text; | |
| using System.Text.RegularExpressions; | |
| using System.Threading.Tasks; | |
| namespace PrinterWebSocket | |
| { | |
| class Program | |
| { | |
| static void Main(string[] args) | |
| { | |
| var server = new TcpListener(IPAddress.Parse("127.0.0.1"), 5656); | |
| server.Start(); | |
| Console.WriteLine("Server has started on 127.0.0.1:5656.{0}Waiting for a connection...", Environment.NewLine); | |
| var client = server.AcceptTcpClient(); | |
| Console.WriteLine("A Client connected."); | |
| NetworkStream stream = client.GetStream(); | |
| while (true) | |
| { | |
| while (!stream.DataAvailable) ; | |
| Byte[] bytes = new Byte[client.Available]; | |
| stream.Read(bytes, 0, bytes.Length); | |
| String data = Encoding.UTF8.GetString(bytes); | |
| if (new Regex("^GET").IsMatch(data)) | |
| { | |
| 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(data).Groups[1].Value.Trim() + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" | |
| ) | |
| ) | |
| ) + Environment.NewLine | |
| + Environment.NewLine); | |
| stream.Write(response, 0, response.Length); | |
| } | |
| Console.WriteLine(data); | |
| } | |
| } | |
| } | |
| } |
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