jsproxy 这个在线代理不能用了！出现了403Access Denied! You are not authorized to access this GitHub Pages site.！跪求新的代码

'use strict'

/** */ const ASSET_URL = 'https://etherdream.github.io/jsproxy'

const JS_VER = 10 const MAX_RETRY = 1

/** @type {RequestInit} / 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-max-age': '1728000', }), }

/**

@param {any} body
@param {number} status
@param {Object<string, string>} headers / function makeRes(body, status = 200, headers = {}) { headers['--ver'] = JS_VER headers['access-control-allow-origin'] = '' return new Response(body, {status, headers}) }

/**

@param {string} urlStr */ function newUrl(urlStr) { try { return new URL(urlStr) } catch (err) { return null } }

addEventListener('fetch', e => { const ret = fetchHandler(e) .catch(err => makeRes('cfworker error:\n' + err.stack, 502)) e.respondWith(ret) })

/**

@param {FetchEvent} e */ async function fetchHandler(e) { const req = e.request const urlStr = req.url const urlObj = new URL(urlStr) const path = urlObj.href.substr(urlObj.origin.length)

if (urlObj.protocol === 'http:') { urlObj.protocol = 'https:' return makeRes('', 301, { 'strict-transport-security': 'max-age=99999999; includeSubDomains; preload', 'location': urlObj.href, }) }

if (path.startsWith('/http/')) { return httpHandler(req, path.substr(6)) }

switch (path) { case '/http': return makeRes('请更新 cfworker 到最新版本!') case '/ws': return makeRes('not support', 400) case '/works': return makeRes('it works') default: // static files return fetch(ASSET_URL + path) } }

/**

@param {Request} req
@param {string} pathname */ function httpHandler(req, pathname) { 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 acehOld = false let rawSvr = '' let rawLen = '' let rawEtag = ''

const reqHdrNew = new Headers(reqHdrRaw) reqHdrNew.set('x-jsproxy', '1')

// 此处逻辑和 http-dec-req-hdr.lua 大致相同 // https://github.com/EtherDream/jsproxy/blob/master/lua/http-dec-req-hdr.lua const refer = reqHdrNew.get('referer') const query = refer.substr(refer.indexOf('?') + 1) if (!query) { return makeRes('missing params', 403) } const param = new URLSearchParams(query)

for (const [k, v] of Object.entries(param)) { if (k.substr(0, 2) === '--') { // 系统信息 switch (k.substr(2)) { case 'aceh': acehOld = true break case 'raw-info': [rawSvr, rawLen, rawEtag] = v.split('|') break } } else { // 还原 HTTP 请求头 if (v) { reqHdrNew.set(k, v) } else { reqHdrNew.delete(k) } } } if (!param.has('referer')) { reqHdrNew.delete('referer') }

// cfworker 会把路径中的 // 合并成 / const urlStr = pathname.replace(/^(https?):/+/, '$1://') const urlObj = newUrl(urlStr) if (!urlObj) { return makeRes('invalid proxy url: ' + urlStr, 403) }

/** @type {RequestInit} */ const reqInit = { method: req.method, headers: reqHdrNew, redirect: 'manual', } 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 = '*'

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 (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(res.body, 400, {
    '--error': `bad len: ${newLen}, except: ${rawLen}`,
    'access-control-expose-headers': '--error',
  })
}

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('--s', status) resHdrNew.set('--ver', JS_VER)

resHdrNew.delete('content-security-policy') resHdrNew.delete('content-security-policy-report-only') resHdrNew.delete('clear-site-data')

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