private void TraceTcpNatContext(NATContext context, TcpFrame frame)
{
if (context == null || frame == null)
{
return;
}
NATContext.StateCode state = NATContext.StateCode.TCP_RST; // 跟踪TCP协议报文状态
if (0 != (frame.Flags & TcpFlags.TCP_SYN))
{
state = NATContext.StateCode.TCP_SYN;
}
else if (0 != (frame.Flags & TcpFlags.TCP_FIN))
{
state = NATContext.StateCode.TCP_FIN;
}
else if (0 != (frame.Flags & TcpFlags.TCP_RST))
{
state = NATContext.StateCode.TCP_RST;
}
else if (0 != (frame.Flags & (TcpFlags.TCP_PSH | TcpFlags.TCP_ACK)))
{
state = NATContext.StateCode.TCP_RECVED;
}
if (context.State != NATContext.StateCode.TCP_FIN &&
context.State != NATContext.StateCode.TCP_RST)
{
context.Restart().State = state;
}
}
public override void Clear()
{
var api = new ApiPacket(10, 4);
api.Set("sessionid", Id);
var response = TcpFrame.Send(api);
IsSuccess(response);
}
public override void Remove(string key)
{
var api = new ApiPacket(10, 3);
api.Set("sessionid", Id);
api.Set("key", key);
var response = TcpFrame.Send(api);
IsSuccess(response);
}
public override void Set(string key, byte[] value)
{
var api = new ApiPacket(10, 2);
api.Set("sessionid", Id);
api.Set("key", key);
api.Bytes = value;
var response = TcpFrame.Send(api);
IsSuccess(response);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler(AllException);
}
app.UseIgnoreUrl("Views");
app.UseResponseCompression();
// 此部分为作者需要，你们可以直接删掉
var staticfile = new StaticFileOptions();
var provider = new Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider();
provider.Mappings.Add(".php", "text/plain");//手动设置对应MIME
provider.Mappings.Add(".aspx", "text/plain");
staticfile.ContentTypeProvider = provider;
//staticfile.OnPrepareResponse = (a) =>
//{
//};
app.UseStaticFiles(staticfile);
app.UseDiySession();
app.UseAshx(routes =>
{
routes.MapApiRoute(
name: "Api",
areaName: "AdminCore.Api",
template: "Api/{controller=AdminServers}/{action}/{id?}");
routes.MapApiRoute(
name: "Admin",
areaName: "AdminCore.WebUi",
template: "{controller=Admin}/{action=Index}/{id?}");
});
FacadeManage.UseSqlLog(loggerFactory); //注册相关SQL日志。
Menu.Reload(); //获取默认系统菜单
TcpFrame.ConnectClient(loggerFactory);
app.GetObject <UpLoad>().SetBasePath(env.WebRootPath);
Api.AdminServers.StartBaseLog();
}
public override IEnumerable <string> GetKeys()
{
var api = new ApiPacket(10, 0);
api.Set("sessionid", Id);
var response = TcpFrame.Send(api);
IsSuccess(response);
var _keys = response.Obj == null?Array.Empty <string>() : response.Obj.Split('|').AsEnumerable();
return(_keys);
}
public override bool TryGetValue(string key, out byte[] value)
{
var api = new ApiPacket(10, 1);
api.Set("sessionid", Id);
api.Set("key", key);
var response = TcpFrame.Send(api);
IsSuccess(response);
value = response.Bytes;
return(value != null);
}
public virtual bool PublicInput(IPFrame packet)
{
if (packet == null)
{
return(false);
}
switch (packet.ProtocolType)
{
case ProtocolType.Udp:
{
UdpFrame frame = UdpLayer.ParseFrame(packet, true);
if (frame == null)
{
return(false);
}
NATContext context = this.m_contextsUdp.PublicInput(frame.Source, frame.Destination);
if (context == null)
{
return(false);
}
var convertional = new UdpFrame(frame.Source, context.Sources, frame.Payload)
{
Ttl = frame.Ttl,
};
IPFrame ip = CopyFrameHeaderParts(UdpLayer.ToIPFrame(convertional), packet);
if (ip == null)
{
return(false);
}
return(this.OnPrivateOutput(ip));
}
case ProtocolType.Tcp:
{
TcpFrame frame = TcpLayer.ParseFrame(packet, true);
if (frame == null)
{
return(false);
}
NATContext context = this.m_contextsTcp.PublicInput(frame.Source, frame.Destination);
if (context == null)
{
return(false);
}
else
{
TraceTcpNatContext(context, frame);
}
var convertional = new TcpFrame(frame.Source, context.Sources, frame.Payload)
{
Ttl = frame.Ttl,
AcknowledgeNo = frame.AcknowledgeNo,
Flags = frame.Flags,
SequenceNo = frame.SequenceNo,
WindowSize = frame.WindowSize,
Options = frame.Options,
UrgentPointer = frame.UrgentPointer,
};
IPFrame ip = CopyFrameHeaderParts(TcpLayer.ToIPFrame(convertional), packet);
if (ip == null)
{
return(false);
}
return(this.OnPrivateOutput(ip));
}
case ProtocolType.Icmp:
return(this.PublicIcmpInput(packet));
default:
return(false);
}
}
