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cwg-http-proxy-tools

v5.1.5

Published

a simple tool to proxy http(s) requests to your server, proxy agent support http, socks4 socks4a and socks5 protocol, data transmission based on websocket protocol.

Downloads

23

Readme

用法见test/test1.js

本文档仅对基本参数进行说明。

以代码形式使用本模块,首先需要引用本模块导出的方法和变量:

const {
  argv,
  setlog,
  bind_server,
  bind_client,
  bind_upstream,
  bind_manager,
  startSimpleServer,
  plimit,
}=require('cwg-http-proxy-tools')

argv

把控制台参数转换成js对象,如 --xx=111 --y 则转换之后的argv等于{xx: 111, y: true}

setlog(enable)

是否输出日志信息,enable为1时输出全部日志,为0时仅输出必要的日志信息。
如果不调用该方法,默认输出全部日志

bind_server(port, pwd, pubkeyExpires, onrefleshKeyHash, fakeServer, withoutUps, upsTargets, helomsg, cpwd)

开启一个本地server,参数依次为本地端口号 port,管理密码 pwd,pubkeyExpires 公钥有效时间,公钥刷新时回调函数 onrefleshKeyHash,非ws协议连接时伪装的服务器函数 fakeServer,启动server时不要自带上传源 withoutUps
  • pwd如果不需要则填数字0,然后改server就不可以被manager端进行远程管理
  • pubkeyExpires单位毫秒,例如3天过期,则这个值等于 3 * 24 * 3600e3
  • onrefleshKeyHash入参只有一个buffer类型的hash,长度为32位,只会在公钥发生变化时被调用
  • fakeServer,入参为(req, res),如果该参数不需要,则填入数字0,非ws协议访问时返回hello world,否则以fakeServer处理结果为准
  • withoutUps默认为1,如果不需要则必须把该参数设置为0
  • upsTargets指定需要连接的远程server,如果连接成功,则本server会请求作为远程server的一个upstream,在对方manager列表里展示为 数字<*U>

注意此处不要构成循环引用,否则遇到不可访问的目标时,会导致等待最大超时后才连接失败

  • helomsg为client连接服务端成功之后,服务端发送的连接成功提示消息
  • cwpd为client,upstream连接时的密码,如果不填则任何client和upstream都可以直接连接server并使用server的流量

bind_client(port, targets, noupstream, whiteblack, upstreamprivate)

开启本地client,支持http/https/socks4/socks4a/socks5连接协议,监听端口 port,连接目标可选列表 targets,不需要自带上传源 noupstream
  • targets是一个数组,数组内部为元素

    • 结构可以有两种:

      1. ['ws://xxx', hash32=>{}, cpwd]
      2. ['ws://cpwdbase64@xxx', hash32=>{}]

      targets是一个多层数组,ws://xxx表示目标地址,可以带端口号

      hash32=>{}是目标server的公钥hash,如果不填这个回调函数,则不会校验目标机器公钥是否匹配,有被中间人攻击的风险

      cpwd为服务器连接密码,如果服务器没有设置密码,则此项可以不填。cpwd也可以转换成base64字符串拼在ws字符串里面

  • 如果client带了一个upstream,则whiteblack为自带upstream的过滤规则,如果有该参数,则上传源收到转发流量命令,会按照该参数指定的规则判断是否允许连接目标机,使用示例:--whiteblack="1:(.|^)jd.com:(\d+)$",表示该上传源只允许访问jd.com域名,其他域名的目标均禁止访问。1:表示白名单模式,0:则表示黑名单模式,只允许一条规则,且必须指定是白名单还是黑名单模式,冒号后面跟的是具体规则的正则表达式,比如目标地址是 https://www.baidu.com/s/222,则实际进行判断的的字符串为 www.baidu.com:443 。upstreamprivate不填则默认自带的upstream会与server共享流量

bind_upstream(noshell, targets, whiteblack)

开启一个upstream,是否不需要shell noshell,targets同上,whiteblack为目标过滤规则,同上

bind_manager(pwd, targets)

pwd为目标server的管理密码,targets同上

startSimpleServer(port, pwd, expires, helomsg, cpwd, upsTargets)

快速开启一个简易服务器

开启后,访问该服务器 /keyhash.hex 可以获取到当前的服务端公钥的hash

plimit(memoryLimitSize, func)

限制运行服务的内存大小,超过内存大小则会重启。

目前代码内存泄漏问题存在,但暂时不好排查,如果是服务器上运行的程序建议都使用这个方法包裹,避免内存爆炸导致服务器宕机。

使用方式:plimit(512, _=>{ ...主程序代码... }),表示运行时最大使用内存大小为512MB,超过则该进程会自动重启,切断当前所有进行中的连接