• 欢迎访问爱玩吧
  • 如果您觉得本站非常有看点,那么赶紧使用Ctrl+D 收藏爱玩吧

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

教程资源 aiwanyule 7个月前 (03-15) 427次浏览 已收录 0个评论

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

本文来自Dreamy.WJY投稿!博主编辑部分内容!

JSProxy 一个基于浏览器端 JS 实现的在线代理,这里不多介绍!

本文主要介绍一下利用CloudFlare Worker 来搭建一个JSProxy服务。

CloudFlare Worker 是 CloudFlare 的边缘计算服务。开发者可通过 JavaScript 对 CDN 进行编程,从而能灵活处理 HTTP 请求。这使得很多任务可在 CDN 上完成,无需自己的服务器参与。

CFW免费服务,支持每天10 万次免费请求!基本也够用了!

 

项目介绍

项目地址:https://github.com/EtherDream/jsproxy

 

准备工作

Cloudflare 账号一个

 

使用教程

1)打开 https://workers.cloudflare.com,登陆上你的 Cloudflare 账号激活 Workers 服务

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

然后创建一个 Workers【Create a Worker】

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

 

 

2)修改一下子域名,创建出来的域名格式 自定义的内容.Cloudflare用户名.workers.dev

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

 

 

 

3)复制 https://raw.githubusercontent.com/EtherDream/jsproxy/master/cf-worker/index.js 的内容到左侧代码(Script)区域

文章最下方有代码备份!!

[教程]利用CloudFlare Worker 免费部署 JSProxy 服务

 

4)先点击【Run】右侧看执行效果,再点击 【Save and deploy】 部署代码

 

5)届时你可以访问你的站点https://xxx.子域名.workers.dev查看效果

进入站点后将线路选择切换为当前站点即可使用

 

特别提示:浏览网站的时候,有时候会提示加载不安全脚本,点击允许即可!

代码备份

 

‘use strict’
/**
* static files (404.html, sw.js, conf.js)
*/
const ASSET_URL = https://zjcqoo.github.io’
const JS_VER = 8
const MAX_RETRY = 1
const PREFLIGHT_INIT = {
  status: 204,
  headers: new Headers({
    ‘access-control-allow-origin’: ‘*’,
    ‘access-control-allow-methods’: ‘GET,POST,PUT,PATCH,TRACE,DELETE,HEAD,OPTIONS’,
    ‘access-control-allow-headers’: ‘–raw-info,–level,–url,–referer,–cookie,–origin,–ext,–aceh,–ver,–type,–mode,accept,accept-charset,accept-encoding,accept-language,accept-datetime,authorization,cache-control,content-length,content-type,date,if-match,if-modified-since,if-none-match,if-range,if-unmodified-since,max-forwards,pragma,range,te,upgrade,upgrade-insecure-requests,x-requested-with,chrome-proxy,purpose’,
    ‘access-control-max-age’: ‘1728000’,
  }),
}
/**
* @param {string} message
* @param {number} status
* @param {any} headers
*/
function makeRes(message, status = 200, headers = {}) {
  headers[‘cache-control’] = ‘no-cache’
  headers[‘vary’] = ‘–url’
  headers[‘access-control-allow-origin’] = ‘*’
  return new Response(message, {status, headers})
}
addEventListener(‘fetch’, e => {
  const ret = fetchHandler(e)
    .catch(err => makeRes(‘cfworker error:’ + err, 502))
  e.respondWith(ret)
})
function fetchHandler(e) {
  const req = e.request
  const urlStr = req.url
  const urlObj = new URL(urlStr)
  if (urlObj.protocol === ‘http:’) {
    urlObj.protocol = ‘https:’
    return makeRes(, 301, {
      ‘strict-transport-security’: ‘max-age=99999999; includeSubDomains; preload’,
      ‘location’: urlObj.href,
    })
  }
  switch (urlObj.pathname) {
  case ‘/http’:
    return httpHandler(req)
  case ‘/ws’:
    return makeRes(‘not support’, 400)
  case ‘/works’:
    return makeRes(‘it works’)
  default:
    // static files
    return fetch(ASSET_URL + urlObj.pathname)
  }
}
/**
* @param {Request} req
*/
async function httpHandler(req) {
  const reqHdrRaw = req.headers
  if (reqHdrRaw.has(‘x-jsproxy’)) {
    return Response.error()
  }
  // preflight
  if (req.method === ‘OPTIONS’ &&
      reqHdrRaw.has(‘access-control-request-headers’)
  ) {
    return new Response(null, PREFLIGHT_INIT)
  }
  let urlObj = null
  let extHdrs = null
  let acehOld = false
  let rawSvr =
  let rawLen =
  let rawEtag =
  const reqHdrNew = new Headers(reqHdrRaw)
  reqHdrNew.set(‘x-jsproxy’, ‘1’)
  for (const [k, v] of reqHdrRaw.entries()) {
    if (!k.startsWith(‘–‘)) {
      continue
    }
    reqHdrNew.delete(k)
    const k2 = k.substr(2)
    switch (k2) {
    case ‘url’:
      urlObj = new URL(v)
      break
    case ‘aceh’:
      acehOld = true
      break
    case ‘raw-info’:
      [rawSvr, rawLen, rawEtag] = v.split(‘|’)
      break
    case ‘level’:
    case ‘mode’:
    case ‘type’:
      break
    case ‘ext’:
      extHdrs = JSON.parse(v)
      break
    default:
      if (v) {
        reqHdrNew.set(k2, v)
      } else {
        reqHdrNew.delete(k2)
      }
      break
    }
  }
  if (extHdrs) {
    for (const [k, v] of Object.entries(extHdrs)) {
      reqHdrNew.set(k, v)
    }
  }
  if (!urlObj) {
    return makeRes(‘missing url param’, 403)
  }
  /** @type {RequestInit} */
  const reqInit = {
    method: req.method,
    headers: reqHdrNew,
  }
  if (req.method === ‘POST’) {
    reqInit.body = req.body
  }
  return proxy(urlObj, reqInit, acehOld, rawLen, 0)
}
/**
*
* @param {URL} urlObj
* @param {RequestInit} reqInit
* @param {number} retryTimes
*/
async function proxy(urlObj, reqInit, acehOld, rawLen, retryTimes) {
  const res = await fetch(urlObj.href, reqInit)
  const resHdrOld = res.headers
  const resHdrNew = new Headers(resHdrOld)
  let expose = ‘*’
  let vary = ‘–url’
  
  for (const [k, v] of resHdrOld.entries()) {
    if (k === ‘access-control-allow-origin’ ||
        k === ‘access-control-expose-headers’ ||
        k === ‘location’ ||
        k === ‘set-cookie’
    ) {
      const x = ‘–‘ + k
      resHdrNew.set(x, v)
      if (acehOld) {
        expose = expose + ‘,’ + x
      }
      resHdrNew.delete(k)
    }
    else if (k === ‘vary’) {
      vary = vary + ‘,’ + v
    }
    else if (acehOld &&
      k !== ‘cache-control’ &&
      k !== ‘content-language’ &&
      k !== ‘content-type’ &&
      k !== ‘expires’ &&
      k !== ‘last-modified’ &&
      k !== ‘pragma’
    ) {
      expose = expose + ‘,’ + k
    }
  }
  if (acehOld) {
    expose = expose + ‘,–s’
    resHdrNew.set(‘–t’, ‘1’)
  }
  // verify
  if (rawLen) {
    const newLen = resHdrOld.get(‘content-length’) ||
    const badLen = (rawLen !== newLen)
    if (badLen) {
      if (retryTimes < MAX_RETRY) {
        urlObj = await parseYtVideoRedir(urlObj, newLen, res)
        if (urlObj) {
          return proxy(urlObj, reqInit, acehOld, rawLen, retryTimes + 1)
        }
      }
      return makeRes(‘error’, 400, {
        ‘–error’: ‘bad len:’ + newLen
      })
    }
    if (retryTimes > 1) {
      resHdrNew.set(‘–retry’, retryTimes)
    }
  }
  let status = res.status
  resHdrNew.set(‘access-control-expose-headers’, expose)
  resHdrNew.set(‘access-control-allow-origin’, ‘*’)
  resHdrNew.set(‘vary’, vary)
  resHdrNew.set(‘–s’, status)
  resHdrNew.set(‘–ver’, JS_VER)
  resHdrNew.delete(‘content-security-policy’)
  resHdrNew.delete(‘content-security-policy-report-only’)
  if (status === 301 ||
      status === 302 ||
      status === 303 ||
      status === 307 ||
      status === 308
  ) {
    status = status + 10
  }
  return new Response(res.body, {
    status,
    headers: resHdrNew,
  })
}
/**
* @param {URL} urlObj
*/
function isYtUrl(urlObj) {
  return (
    urlObj.host.endsWith(‘.googlevideo.com’) &&
    urlObj.pathname.startsWith(‘/videoplayback’)
  )
}
/**
* @param {URL} urlObj
* @param {number} newLen
* @param {Response} res
*/
async function parseYtVideoRedir(urlObj, newLen, res) {
  if (newLen > 2000) {
    return null
  }
  if (!isYtUrl(urlObj)) {
    return null
  }
  try {
    const data = await res.text()
    urlObj = new URL(data)
  } catch (err) {
    return null
  }
  if (!isYtUrl(urlObj)) {
    return null
  }
  return urlObj
}

 


爱玩吧 , 版权所有丨如未注明 , 均为原创丨本网站采用BY-NC-SA协议进行授权
转载请注明原文链接:[教程]利用CloudFlare Worker 免费部署 JSProxy 服务
喜欢 (12)
发表我的评论
取消评论
表情 贴图 加粗 删除线 居中 斜体 签到

Hi,您需要填写昵称和邮箱!

  • 昵称 (必填)
  • 邮箱 (必填)
  • 网址