117 lines
4.2 KiB
C#
117 lines
4.2 KiB
C#
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using ImageConverter;
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using PVHelpers;
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using RemoteFrameBuffer;
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using System.Net;
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using System.Net.WebSockets;
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using System.Text;
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namespace CollabVM.Server
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{
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public class CollabVMv1_2GuacamoleServer
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{
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private String tbfile = @"C:\Users\rolan\Downloads\bootsplash.jpg";
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private static String[] ParseMessage(String s)
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{
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List<String> args = [];
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while (true)
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{
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String[] parts = s.Split('.', 2);
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if (parts.Length != 2)
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{
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throw new ArgumentException("Invalid message format: missing `.`", nameof(s));
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}
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if (Int32.TryParse(parts[0], out Int32 len))
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{
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if (parts[1].Length < len + 1)
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{
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throw new ArgumentException("Invalid message format: data doesn't fit in message", nameof(s));
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}
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args.Add(parts[1][..len]);
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s = parts[1][(len+1)..];
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if (parts[1][len] == ',')
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{
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continue;
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}else if (parts[1][len] == ';')
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{
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break;
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} else
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{
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throw new ArgumentException("Invalid message format: parameters must be separated by `,`, list closed by `;`", nameof(s));
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}
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}
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else
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{
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throw new ArgumentException("Invalid message format: can't parse length field", nameof(s));
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}
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}
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return args.ToArray();
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}
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private static String ConstructMessage(params String[] args) => String.Join(',', args.Select((s) => $"{s.Length}.{s}")) + ";";
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private RemoteFramebufferClient _client;
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public CollabVMv1_2GuacamoleServer(RemoteFramebufferClient client)
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{
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this._client = client;
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client.Start();
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}
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public async void HandleSocket(WebSocket ws, IPEndPoint remote)
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{
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Console.Error.WriteLine("new WebSocket, who dis?");
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#warning we probably don't need this much
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Byte[] buf = new Byte[1024];
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try
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{
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while (ws.State == WebSocketState.Open)
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{
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#warning probably needs a real ctoken
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WebSocketReceiveResult recResult = await ws.ReceiveAsync(new ArraySegment<Byte>(buf), CancellationToken.None);
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Console.Error.WriteLine(recResult.MessageType);
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switch (recResult.MessageType)
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{
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case WebSocketMessageType.Close:
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await ws.CloseAsync(WebSocketCloseStatus.NormalClosure, "", CancellationToken.None);
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break;
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case WebSocketMessageType.Text:
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String msg = Encoding.UTF8.GetString(buf, 0, recResult.Count);
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Console.Error.WriteLine(msg);
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await this.HandleCommand(ws, ParseMessage(msg));
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break;
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default:
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throw new NotSupportedException();
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}
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}
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} finally
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{
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ws.Dispose();
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}
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}
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public async Task HandleCommand(WebSocket ws, params String[] args)
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{
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switch (args[0])
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{
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case "cap":
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break;
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case "connect":
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break;
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case "list":
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//await this.Reply(ws, "list", "vmx", "Fake test VM", File.ReadAllBytes(tbfile).EncodeBase64String());
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await this.Reply(ws, "list", "vmx", "Somewhat fake test VM", this._client.BitMap.BmpToJpg().EncodeBase64String());
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break;
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case "rename":
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break;
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}
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}
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public async Task Reply(WebSocket ws, params String[] args)
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{
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Byte[] buf = Encoding.UTF8.GetBytes(ConstructMessage(args));
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await ws.SendAsync(new ArraySegment<Byte>(buf, 0, buf.Length), WebSocketMessageType.Text, true, CancellationToken.None);
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}
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}
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}
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