nps/lib/file/obj.go

package file

import (
	"github.com/cnlh/nps/lib/rate"
	"math"
	"strings"
	"sync"
)

type Flow struct {
	ExportFlow int64 //出口流量
	InletFlow  int64 //入口流量
	FlowLimit  int64 //流量限制，出口+入口 /M
	sync.RWMutex
}

func (s *Flow) Add(in, out int) {
	s.Lock()
	defer s.Unlock()
	s.InletFlow += int64(in)
	s.ExportFlow += int64(out)
}

type Client struct {
	Cnf       *Config
	Id        int        //id
	VerifyKey string     //验证密钥
	Addr      string     //客户端ip地址
	Remark    string     //备注
	Status    bool       //是否开启
	IsConnect bool       //是否连接
	RateLimit int        //速度限制 /kb
	Flow      *Flow      //流量
	Rate      *rate.Rate //速度控制
	NoStore   bool
	NoDisplay bool
	MaxConn   int //客户端最大连接数
	NowConn   int //当前连接数
	id        int
	sync.RWMutex
}

func NewClient(vKey string, noStore bool, noDisplay bool) *Client {
	return &Client{
		Cnf:       new(Config),
		Id:        0,
		VerifyKey: vKey,
		Addr:      "",
		Remark:    "",
		Status:    true,
		IsConnect: false,
		RateLimit: 0,
		Flow:      new(Flow),
		Rate:      nil,
		NoStore:   noStore,
		id:        GetCsvDb().GetClientId(),
		RWMutex:   sync.RWMutex{},
		NoDisplay: noDisplay,
	}
}
func (s *Client) GetId() int {
	s.Lock()
	defer s.Unlock()
	if s.id == math.MaxInt32 {
		s.id = 0
	}
	s.id++
	return s.id
}

func (s *Client) CutConn() {
	s.Lock()
	defer s.Unlock()
	s.NowConn++
}

func (s *Client) AddConn() {
	s.Lock()
	defer s.Unlock()
	s.NowConn--
}

func (s *Client) GetConn() bool {
	s.CutConn()
	if s.MaxConn == 0 || s.NowConn < s.MaxConn {
		return true
	}
	return false
}

type Tunnel struct {
	Id         int     //Id
	Port       int     //服务端监听端口
	Mode       string  //启动方式
	Target     string  //目标
	Status     bool    //设置是否开启
	RunStatus  bool    //当前运行状态
	Client     *Client //所属客户端id
	Ports      string  //客户端与服务端传递
	Flow       *Flow
	Password   string //私密模式密码，唯一
	Remark     string //备注
	TargetAddr string
	NoStore    bool
}

type Config struct {
	U              string //socks5验证用户名
	P              string //socks5验证密码
	Compress       string //压缩方式
	Crypt          bool   //是否加密
	CompressEncode int    //加密方式
	CompressDecode int    //解密方式
}

type Host struct {
	Id           int
	Host         string //启动方式
	Target       string //目标
	HeaderChange string //host修改
	HostChange   string //host修改
	Location     string //url 路由
	Flow         *Flow
	Client       *Client
	Remark       string //备注
	NowIndex     int
	TargetArr    []string
	NoStore      bool
	sync.RWMutex
}

func (s *Host) GetRandomTarget() string {
	if s.TargetArr == nil {
		s.TargetArr = strings.Split(s.Target, "\n")
	}
	s.Lock()
	defer s.Unlock()
	if s.NowIndex >= len(s.TargetArr)-1 {
		s.NowIndex = 0
	} else {
		s.NowIndex++
	}
	return s.TargetArr[s.NowIndex]
}