486 lines
16 KiB
C#
486 lines
16 KiB
C#
using System;
|
|
using System.Collections.Concurrent;
|
|
using System.Collections.Generic;
|
|
using System.Timers;
|
|
using Cysharp.Threading.Tasks;
|
|
using kcp2k;
|
|
using Newtonsoft.Json;
|
|
using Timer = System.Timers.Timer;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Net;
|
|
using System.Net.Sockets;
|
|
using System.Reflection;
|
|
using System.Threading.Tasks;
|
|
using BITKit.Net.Examples;
|
|
|
|
namespace BITKit.Net
|
|
{
|
|
public class KCPNetServer:INetServer,INetProvider
|
|
{
|
|
public bool ManualTick { get; set; }
|
|
public event Action<int> OnClientConnected;
|
|
public event Action<int> OnClientDisconnected;
|
|
public event Action OnStartServer;
|
|
public event Action OnStopServer;
|
|
private readonly KcpServer server;
|
|
private readonly GenericEvent _events = new();
|
|
private readonly Timer _timer = new(100)
|
|
{
|
|
AutoReset = true
|
|
};
|
|
|
|
private int _index = 1001;
|
|
private readonly ConcurrentDictionary<int, object> _p2p = new();
|
|
private readonly ConcurrentDictionary<string,Func<object,UniTask<object>>> _rpc = new();
|
|
private readonly ConcurrentDictionary<string,MethodInfo> _rpcMethods = new();
|
|
private readonly ConcurrentDictionary<string,object> _rpcHandles = new();
|
|
|
|
public KCPNetServer()
|
|
{
|
|
server = new KcpServer(
|
|
OnConnected,
|
|
OnData,
|
|
OnDisconnect,
|
|
OnError,
|
|
KCPNet.Config
|
|
);
|
|
_timer.Elapsed += Tick;
|
|
BIT4Log.Log<KCPNetServer>("已创建KCP服务器");
|
|
|
|
AddCommandListener<SimplePing>(F);
|
|
|
|
AddRpcHandle(this);
|
|
return;
|
|
UniTask<SimplePing> F(SimplePing p)
|
|
{
|
|
p.EndTime = DateTime.Now;
|
|
return UniTask.FromResult(p);
|
|
}
|
|
}
|
|
|
|
private void Tick(object sender, ElapsedEventArgs e)
|
|
{
|
|
try
|
|
{
|
|
if (server.IsActive() is false || ManualTick) return;
|
|
server.Tick();
|
|
}
|
|
catch (SocketException)
|
|
{
|
|
//丢失链接,有用户断开连接,通常是正常现象
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
BIT4Log.LogException(exception);
|
|
}
|
|
}
|
|
|
|
public void StartServer(ushort port = 27014)
|
|
{
|
|
if (IsRunningServer is false)
|
|
{
|
|
OnStartServer?.Invoke();
|
|
server.Start(port);
|
|
_timer.Start();
|
|
BIT4Log.Log<KCPNetServer>($"已启动KCP服务器:{port}");
|
|
}
|
|
else
|
|
{
|
|
BIT4Log.Warning<KCPNetServer>($"KCP服务器已经启动,忽略此次请求");
|
|
}
|
|
|
|
}
|
|
public void StopServer(bool dispose = false)
|
|
{
|
|
if (IsRunningServer)
|
|
{
|
|
server.Stop();
|
|
OnStopServer?.Invoke();
|
|
_timer.Stop();
|
|
BIT4Log.Log<KCPNetServer>($"已停止KCP服务器");
|
|
}
|
|
else
|
|
{
|
|
BIT4Log.Warning<KCPNetServer>($"KCP服务器未运行,忽略此次请求");
|
|
}
|
|
}
|
|
public bool IsRunningServer => server.IsActive();
|
|
public void SendMessageToClient(int id, string message)
|
|
{
|
|
Send(id,NetCommandType.Message,message);
|
|
}
|
|
|
|
public void SendMessageToAll(string message)
|
|
{
|
|
foreach (var Id in server.connections.Keys)
|
|
{
|
|
SendMessageToClient(Id,message);
|
|
}
|
|
}
|
|
|
|
public IDictionary<int, EndPoint> Connections =>
|
|
new Dictionary<int, EndPoint>(
|
|
server.connections.Select(x => new KeyValuePair<int, EndPoint>(x.Key, x.Value.remoteEndPoint)
|
|
));
|
|
|
|
|
|
|
|
public void Tick()
|
|
{
|
|
try
|
|
{
|
|
server.Tick();
|
|
}
|
|
catch (SocketException)
|
|
{
|
|
BIT4Log.Log<INetServer>("有用户断开连接，如有异常请检查");
|
|
}
|
|
}
|
|
|
|
public void HandShake()
|
|
{
|
|
foreach (var Id in server.connections.Keys)
|
|
{
|
|
server.Send(Id, new byte[]{0x03, 0x04}, KcpChannel.Reliable);
|
|
}
|
|
}
|
|
|
|
private void OnConnected(int Id)
|
|
{
|
|
OnClientConnected?.Invoke(Id);
|
|
ClientCommand(Id,new NetClientAllocateIdCommand
|
|
{
|
|
Id = Id,
|
|
Ip = server.connections[Id].remoteEndPoint.ToString()
|
|
});
|
|
BIT4Log.Log<KCPNetServer>($"{Id}已加入");
|
|
SendMessageToClient(Id, "成功连接到服务器");
|
|
|
|
}
|
|
private void OnDisconnect(int Id)
|
|
{
|
|
OnClientDisconnected?.Invoke(Id);
|
|
BIT4Log.Log<KCPNetServer>($"{Id}已断开");
|
|
}
|
|
|
|
private void OnData(int Id, ArraySegment<byte> bytes, KcpChannel channel)
|
|
{
|
|
try
|
|
{
|
|
OnDataInternel(Id, bytes, channel);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
BIT4Log.LogException(e);
|
|
}
|
|
}
|
|
private async void OnDataInternel(int Id, ArraySegment<byte> bytes, KcpChannel channel)
|
|
{
|
|
using var ms = new MemoryStream(bytes.ToArray());
|
|
using var reader = new BinaryReader(ms);
|
|
|
|
//BIT4Log.Log<INetServer>(Id);
|
|
|
|
var type = (NetCommandType)ms.ReadByte();
|
|
|
|
//BIT4Log.Log<INetServer>(type);
|
|
switch (type)
|
|
{
|
|
case NetCommandType.Message:
|
|
BIT4Log.Log<KCPNetServer>($"已收到消息,{Id}:{reader.ReadString()}");
|
|
break;
|
|
case NetCommandType.Command:
|
|
var command = BITBinary.Read(reader);
|
|
if (command is object[] { Length: 1 } objs) command = objs[0];
|
|
//BIT4Log.Log<KCPNetServer>($"已收到指令:{command},值:\n{JsonConvert.SerializeObject(command, Formatting.Indented)}");
|
|
_events.Invoke(command.GetType().FullName, command);
|
|
|
|
(int Id,object Command) tuple = (Id,command);
|
|
_events.InvokeDirect(command.GetType().FullName,tuple);
|
|
break;
|
|
case NetCommandType.Heartbeat:
|
|
server.Send(Id,new byte[]{(byte)NetCommandType.Heartbeat}, KcpChannel.Reliable);
|
|
break;
|
|
case NetCommandType.AllClientCommand:
|
|
foreach (var id in server.connections.Keys.ToArray())
|
|
{
|
|
server.Send(id,bytes,channel);
|
|
}
|
|
break;
|
|
case NetCommandType.TargetCommand:
|
|
var targetId = reader.ReadInt32();
|
|
server.Send(targetId,bytes,channel);
|
|
break;
|
|
case NetCommandType.Ping:
|
|
server.Send(Id,new byte[]{(byte)NetCommandType.Ping},channel);
|
|
break;
|
|
case NetCommandType.GetFromServer:
|
|
{
|
|
var requestId = reader.ReadInt32();
|
|
|
|
|
|
using var returnMS = new MemoryStream();
|
|
await using var returnWriter = new BinaryWriter(returnMS);
|
|
returnWriter.Write((byte)NetCommandType.ReturnToClient);
|
|
returnWriter.Write(requestId);
|
|
|
|
try
|
|
{
|
|
if (reader.ReadBoolean())
|
|
{
|
|
var path = reader.ReadString();
|
|
var pars = BITBinary.Read(reader).As<object[]>();
|
|
|
|
|
|
if (_rpcMethods.TryGetValue(path, out var methodInfo))
|
|
{
|
|
var isAwaitable = methodInfo.ReturnType.GetMethod(nameof(Task.GetAwaiter)) != null;
|
|
var handle = _rpcHandles[path];
|
|
object value = null;
|
|
if (methodInfo.GetParameters().Length is 0)
|
|
{
|
|
pars = new object[]{};
|
|
}
|
|
if (isAwaitable)
|
|
{
|
|
dynamic result = methodInfo.Invoke(handle, pars)!;
|
|
|
|
value = await result;
|
|
}
|
|
else
|
|
{
|
|
value = methodInfo.Invoke(handle, pars);
|
|
}
|
|
|
|
returnWriter.Write(true);
|
|
BITBinary.Write(returnWriter, value);
|
|
}
|
|
else
|
|
{
|
|
throw new Exception($"未找到对应的Rpc方法:{path}");
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
var commandObj = BITBinary.Read(reader)
|
|
.As<object[]>()[0];
|
|
var funcName = commandObj.GetType()!.FullName!;
|
|
if (_rpc.TryGetValue(funcName, out var func))
|
|
{
|
|
var value = await func.As<Func<object, UniTask<object>>>().Invoke(commandObj);
|
|
returnWriter.Write(true);
|
|
BITBinary.Write(returnWriter, value);
|
|
}
|
|
else
|
|
{
|
|
throw new Exception($"未找到对应的Rpc方法:{funcName}");
|
|
}
|
|
}
|
|
{
|
|
var _bytes = returnMS.ToArray();
|
|
server.Send(Id, _bytes, KcpChannel.Reliable);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
returnWriter.Write(false);
|
|
returnWriter.Write(e.Message);
|
|
|
|
var _bytes = returnMS.ToArray();
|
|
server.Send(Id, _bytes, KcpChannel.Reliable);
|
|
BIT4Log.LogException(e);
|
|
}
|
|
}
|
|
break;
|
|
case NetCommandType.ReturnToServer:
|
|
{
|
|
var id = reader.ReadInt32();
|
|
if (reader.ReadBoolean())
|
|
{
|
|
var value = BITBinary.Read(reader);
|
|
_p2p.TryAdd(id, value);
|
|
}
|
|
else
|
|
{
|
|
var message = reader.ReadString();
|
|
_p2p.TryAdd(id, new Exception(message));
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
BIT4Log.Log<KCPNetServer>($"未知消息类型:{type},字节:{(byte)type}");
|
|
BIT4Log.Log<KCPNetServer>($"已收到:({Id}, {BitConverter.ToString(bytes.Array, bytes.Offset, bytes.Count)} @ {channel})");
|
|
break;
|
|
}
|
|
}
|
|
private void OnError(int Id, ErrorCode errorCode, string message)
|
|
{
|
|
BIT4Log.Log<KCPNetServer>($"异常:{errorCode},{message}");
|
|
}
|
|
|
|
public void ServerCommand<T>(T command = default)
|
|
{
|
|
_events.Invoke<T>(command);
|
|
}
|
|
|
|
public void AllClientCommand<T>(T command = default)
|
|
{
|
|
foreach (var id in server.connections.Keys.ToArray())
|
|
{
|
|
ClientCommand(id, command);
|
|
}
|
|
}
|
|
|
|
public void ClientCommand<T>(int id, T command)
|
|
{
|
|
Send(id,NetCommandType.Command,command);
|
|
}
|
|
|
|
public UniTask<T> GetFromServer<T>(string path=default,params object[] pars)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public async UniTask<T> GetFromClient<T>(int id,string path=default, params object[] pars)
|
|
{
|
|
var index = _index++;
|
|
using var ms = new MemoryStream();
|
|
await using var writer = new BinaryWriter(ms);
|
|
writer.Write((byte)NetCommandType.GetFromClient);
|
|
writer.Write(index);
|
|
if (string.IsNullOrEmpty(path))
|
|
{
|
|
writer.Write(false);
|
|
}
|
|
else
|
|
{
|
|
writer.Write(true);
|
|
writer.Write(path);
|
|
}
|
|
BITBinary.Write(writer,pars);
|
|
|
|
var bytes = ms.ToArray();
|
|
server.Send(id,bytes,KcpChannel.Reliable);
|
|
var startTime = DateTime.Now;
|
|
while (true)
|
|
{
|
|
if(DateTime.Now-startTime>TimeSpan.FromSeconds(5) || server.connections.ContainsKey(id) is false)
|
|
throw new TimeoutException();
|
|
|
|
if (_p2p.TryRemove(index, out var value))
|
|
{
|
|
if (value is Exception e)
|
|
{
|
|
throw e;
|
|
}
|
|
return (T)value;
|
|
}
|
|
await Task.Delay(100);
|
|
}
|
|
}
|
|
|
|
public void AddRpcHandle(object rpcHandle)
|
|
{
|
|
foreach (var methodInfo in rpcHandle.GetType().GetMethods())
|
|
{
|
|
var att = methodInfo.GetCustomAttribute<NetRpcAttribute>();
|
|
if(att is null)continue;
|
|
_rpcMethods.TryAdd(methodInfo.Name, methodInfo);
|
|
_rpcHandles.TryAdd(methodInfo.Name, rpcHandle);
|
|
}
|
|
}
|
|
[NetRpc]
|
|
public string MyRpcTest(string hello)
|
|
{
|
|
return "Hello World";
|
|
}
|
|
[NetRpc]
|
|
public async UniTask<string> MyRpcTestAsync(string hello)
|
|
{
|
|
await Task.Delay(1000);
|
|
return $"{hello} World";
|
|
}
|
|
|
|
public void AddCommandListener<T>(Action<T> handle)
|
|
{
|
|
_events.AddListener<T>(handle);
|
|
}
|
|
|
|
public void AddCommandListener<T>(Func<T,UniTask<T>> func)
|
|
{
|
|
_rpc.TryAdd(typeof(T).FullName, F);
|
|
return;
|
|
|
|
async UniTask<object> F(object o)
|
|
{
|
|
return await func.Invoke((T)o);
|
|
}
|
|
}
|
|
public void RemoveCommandListener<T>(Func<T,UniTask<T>> func)
|
|
{
|
|
_rpc.TryRemove(typeof(T).FullName, out _);
|
|
}
|
|
public void AddCommandListenerWithId<T>(Action<int, T> handle)
|
|
{
|
|
_events.AddListenerDirect(typeof(T).FullName, Callback);
|
|
return;
|
|
|
|
void Callback(object value)
|
|
{
|
|
if (value is ValueTuple<int, object> tuple && tuple.Item2 is T)
|
|
{
|
|
handle.Invoke(tuple.Item1, (T)tuple.Item2);
|
|
}
|
|
else
|
|
{
|
|
Console.WriteLine(value);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void KickClient(int id)
|
|
{
|
|
server.Disconnect(id);
|
|
}
|
|
|
|
public void RemoveCommandListener<T>(Action<T> handle)
|
|
{
|
|
_events.RemoveListener<T>(handle);
|
|
}
|
|
|
|
public void RemoveCommandListener<T>(Func<string, T> func)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public void SendRT(string rpcName, params object[] pars)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public void SendTargetRT(int id, string rpcName, params object[] pars)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public void SendAllRT(string rpcName, params object[] pars)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
private void Send(int id,NetCommandType commandType,params object[] values)
|
|
{
|
|
var bytes = BinaryBuilder
|
|
.Create()
|
|
.Write((byte)commandType)
|
|
.WriteObject(values)
|
|
.Build();
|
|
if (server.connections.ContainsKey(id))
|
|
{
|
|
server.Send(id,bytes, KcpChannel.Reliable);
|
|
}
|
|
}
|
|
|
|
}
|
|
} |