62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading.Tasks;
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using Kneesocks;
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using Square;
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using CircleScape.Encryption;
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namespace CircleScape {
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class PlayerConnection : Connection {
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private DateTime ConnectionOpened;
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private Key Key;
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public Cipher Encryptor { get; private set; } = null;
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protected override void OnOpen() {
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ConnectionOpened = DateTime.UtcNow;
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Key = new Key();
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Send(Key.GenerateRequestPacket().GetBytes());
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}
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protected override void OnParse() {
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if((DateTime.UtcNow - ConnectionOpened).Seconds > 60) {
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Disconnect(Frame.kClosingReason.ProtocolError, "Logon request timed out.");
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}
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}
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protected override void OnReceive(byte[] data) {
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Packet packet =
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Encryptor == null ? Packet.FromBytes(data)
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: Packet.FromBytes(Encryptor.Parse(data));
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if(!packet.IsLegal) {
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Disconnect(Frame.kClosingReason.ProtocolError, "Packet received was not legal.");
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return;
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}
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switch(packet.Id) {
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case Packet.kId.KeyExchange:
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Key.ParseResponsePacket(packet);
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if(!Key.Succeeded) {
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Disconnect(Frame.kClosingReason.ProtocolError, "Could not exchange keys.");
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return;
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}
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Encryptor = new Cipher(Key.PrivateKey);
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break;
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case Packet.kId.LoginAttempt:
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break;
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default:
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Disconnect(Frame.kClosingReason.ProtocolError, "Packet ID could not be understood at this time.");
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break;
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}
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Console.WriteLine(Id + " says " + data.GetString());
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}
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}
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}
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