add
This commit is contained in:
lework
parent
60010dfbd9
commit
fd21affa44
15
README.md
15
README.md
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@ -1,2 +1,17 @@
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# cloudflare-workers
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Cloudflare Worker scripts
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## deploy
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首页：https://workers.cloudflare.com
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注册，登陆，Start building，取一个子域名，Create a Worker。
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复制 js 到左侧代码框，Save and deploy。
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## example
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- https://github.com/cloudflare/worker-examples
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'use strict'
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/**
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* static files (404.html, sw.js, conf.js)
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*/
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/** @type {RequestInit} */
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const PREFLIGHT_INIT = {
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status: 204,
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headers: new Headers({
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'access-control-allow-origin': '*',
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'access-control-allow-methods': 'GET,POST,PUT,PATCH,TRACE,DELETE,HEAD,OPTIONS',
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'access-control-max-age': '1728000',
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}),
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}
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/**
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* @param {any} body
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* @param {number} status
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* @param {Object<string, string>} headers
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*/
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function makeRes(body, status = 200, headers = {}) {
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headers['access-control-allow-origin'] = '*'
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return new Response(body, {status, headers})
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}
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/**
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* @param {string} urlStr
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*/
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function newUrl(urlStr) {
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try {
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return new URL(urlStr)
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} catch (err) {
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return null
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}
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}
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addEventListener('fetch', e => {
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const ret = fetchHandler(e)
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.catch(err => makeRes('cfworker error:\n' + err.stack, 502))
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e.respondWith(ret)
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})
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/**
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* @param {FetchEvent} e
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*/
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async function fetchHandler(e) {
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const getReqHeader = (key) => e.request.headers.get(key);
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let url = new URL(e.request.url);
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url.hostname = "code.dlang.org";
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let parameter = {
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headers: {
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'Host': 'code.dlang.org',
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'User-Agent': getReqHeader("User-Agent"),
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'Accept': getReqHeader("Accept"),
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'Accept-Language': getReqHeader("Accept-Language"),
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'Accept-Encoding': getReqHeader("Accept-Encoding"),
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'Connection': 'keep-alive',
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'Cache-Control': 'max-age=0'
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},
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cacheTtl: 3600
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};
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if (e.request.headers.has("Referer")) {
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parameter.headers.Referer = getReqHeader("Referer");
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}
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if (e.request.headers.has("Origin")) {
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parameter.headers.Origin = getReqHeader("Origin");
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}
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const exp = /.*\.zip$/
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let redirect_url = ""
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if (e.request.url.search(exp)===0) {
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await fetch(new Request(url, e.request), parameter).then( r => {
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redirect_url = r.headers.get("Location")
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})
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return httpHandler(e.request, redirect_url)
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} else {
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return fetch(new Request(url, e.request), parameter);
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}
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}
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/**
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* @param {Request} req
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* @param {string} pathname
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*/
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function httpHandler(req, pathname) {
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const reqHdrRaw = req.headers
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// preflight
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if (req.method === 'OPTIONS' &&
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reqHdrRaw.has('access-control-request-headers')
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) {
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return new Response(null, PREFLIGHT_INIT)
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}
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let rawLen = ''
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const reqHdrNew = new Headers(reqHdrRaw)
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const refer = reqHdrNew.get('referer')
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let urlStr = pathname
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if (urlStr.startsWith('github')) {
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urlStr = 'https://' + urlStr
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}
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const urlObj = newUrl(urlStr)
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/** @type {RequestInit} */
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const reqInit = {
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method: req.method,
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headers: reqHdrNew,
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redirect: 'follow',
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body: req.body
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}
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return proxy(urlObj, reqInit, rawLen, 0)
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}
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/**
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*
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* @param {URL} urlObj
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* @param {RequestInit} reqInit
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*/
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async function proxy(urlObj, reqInit, rawLen) {
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const res = await fetch(urlObj.href, reqInit)
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const resHdrOld = res.headers
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const resHdrNew = new Headers(resHdrOld)
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// verify
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if (rawLen) {
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const newLen = resHdrOld.get('content-length') || ''
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const badLen = (rawLen !== newLen)
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if (badLen) {
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return makeRes(res.body, 400, {
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'--error': `bad len: ${newLen}, except: ${rawLen}`,
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'access-control-expose-headers': '--error',
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})
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}
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}
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const status = res.status
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resHdrNew.set('access-control-expose-headers', '*')
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resHdrNew.set('access-control-allow-origin', '*')
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resHdrNew.set('Cache-Control', 'max-age=1500')
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resHdrNew.delete('content-security-policy')
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resHdrNew.delete('content-security-policy-report-only')
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resHdrNew.delete('clear-site-data')
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return new Response(res.body, {
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status,
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headers: resHdrNew
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})
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}
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'use strict'
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/**
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* static files (404.html, sw.js, conf.js)
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*/
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/** @type {RequestInit} */
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const PREFLIGHT_INIT = {
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status: 204,
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headers: new Headers({
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'access-control-allow-origin': '*',
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'access-control-allow-methods': 'GET,POST,PUT,PATCH,TRACE,DELETE,HEAD,OPTIONS',
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'access-control-max-age': '1728000',
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}),
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}
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/**
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* @param {any} body
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* @param {number} status
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* @param {Object<string, string>} headers
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*/
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function makeRes(body, status = 200, headers = {}) {
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headers['access-control-allow-origin'] = '*'
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return new Response(body, {status, headers})
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}
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/**
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* @param {string} urlStr
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*/
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function newUrl(urlStr) {
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try {
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return new URL(urlStr)
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} catch (err) {
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return null
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}
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}
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addEventListener('fetch', e => {
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const ret = fetchHandler(e)
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.catch(err => makeRes('cfworker error:\n' + err.stack, 502))
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e.respondWith(ret)
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})
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/**
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* @param {FetchEvent} e
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*/
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async function fetchHandler(e) {
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const getReqHeader = (key) => e.request.headers.get(key);
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let url = new URL(e.request.url);
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url.hostname = "gcr.io";
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let parameter = {
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headers: {
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'Host': 'gcr.io',
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'User-Agent': getReqHeader("User-Agent"),
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'Accept': getReqHeader("Accept"),
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'Accept-Language': getReqHeader("Accept-Language"),
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'Accept-Encoding': getReqHeader("Accept-Encoding"),
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'Connection': 'keep-alive',
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'Cache-Control': 'max-age=0'
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},
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cacheTtl: 3600
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};
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if (e.request.headers.has("Referer")) {
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parameter.headers.Referer = getReqHeader("Referer");
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}
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if (e.request.headers.has("Origin")) {
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parameter.headers.Origin = getReqHeader("Origin");
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}
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let original_response = await fetch(new Request(url, e.request), parameter)
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let original_response_clone = original_response.clone();
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let original_text = original_response_clone.body;
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let response_headers = original_response.headers;
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let new_response_headers = new Headers(response_headers);
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let status = original_response.status;
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if (new_response_headers.get("Www-Authenticate")) {
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let auth = new_response_headers.get("Www-Authenticate");
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let re = new RegExp('https://gcr.io', 'g');
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new_response_headers.set("Www-Authenticate", response_headers.get("Www-Authenticate").replace(re, $custom_domain));
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}
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if (new_response_headers.get("Location")) {
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return httpHandler(e.request, new_response_headers.get("Location"))
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}
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let response = new Response(original_text, {
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status,
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headers: new_response_headers
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})
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return response;
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}
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/**
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* @param {Request} req
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* @param {string} pathname
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*/
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function httpHandler(req, pathname) {
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const reqHdrRaw = req.headers
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|
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// preflight
|
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if (req.method === 'OPTIONS' &&
|
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reqHdrRaw.has('access-control-request-headers')
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) {
|
||||
return new Response(null, PREFLIGHT_INIT)
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}
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||||
|
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let rawLen = ''
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|
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const reqHdrNew = new Headers(reqHdrRaw)
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const refer = reqHdrNew.get('referer')
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let urlStr = pathname
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|
||||
const urlObj = newUrl(urlStr)
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|
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/** @type {RequestInit} */
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const reqInit = {
|
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method: req.method,
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headers: reqHdrNew,
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redirect: 'follow',
|
||||
body: req.body
|
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}
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return proxy(urlObj, reqInit, rawLen, 0)
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}
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||||
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {URL} urlObj
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||||
* @param {RequestInit} reqInit
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||||
*/
|
||||
async function proxy(urlObj, reqInit, rawLen) {
|
||||
const res = await fetch(urlObj.href, reqInit)
|
||||
const resHdrOld = res.headers
|
||||
const resHdrNew = new Headers(resHdrOld)
|
||||
|
||||
// verify
|
||||
if (rawLen) {
|
||||
const newLen = resHdrOld.get('content-length') || ''
|
||||
const badLen = (rawLen !== newLen)
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||||
|
||||
if (badLen) {
|
||||
return makeRes(res.body, 400, {
|
||||
'--error': `bad len: ${newLen}, except: ${rawLen}`,
|
||||
'access-control-expose-headers': '--error',
|
||||
})
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||||
}
|
||||
}
|
||||
const status = res.status
|
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resHdrNew.set('access-control-expose-headers', '*')
|
||||
resHdrNew.set('access-control-allow-origin', '*')
|
||||
resHdrNew.set('Cache-Control', 'max-age=1500')
|
||||
|
||||
resHdrNew.delete('content-security-policy')
|
||||
resHdrNew.delete('content-security-policy-report-only')
|
||||
resHdrNew.delete('clear-site-data')
|
||||
|
||||
return new Response(res.body, {
|
||||
status,
|
||||
headers: resHdrNew
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,163 @@
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'use strict'
|
||||
|
||||
/**
|
||||
* static files (404.html, sw.js, conf.js)
|
||||
*/
|
||||
const ASSET_URL = 'https://hunshcn.github.io/gh-proxy'
|
||||
// 前缀，如果自定义路由为example.com/gh/*，将PREFIX改为 '/gh/'，注意，少一个杠都会错！
|
||||
const PREFIX = '/'
|
||||
// git使用cnpmjs镜像、分支文件使用jsDelivr镜像的开关，0为关闭，默认开启
|
||||
const Config = {
|
||||
jsdelivr: 1,
|
||||
cnpmjs: 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['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)
|
||||
let path = urlObj.searchParams.get('q')
|
||||
if (path) {
|
||||
return Response.redirect('https://' + urlObj.host + PREFIX + path, 301)
|
||||
}
|
||||
// cfworker 会把路径中的 `//` 合并成 `/`
|
||||
path = urlObj.href.substr(urlObj.origin.length + PREFIX.length).replace(/^https?:\/+/, 'https://')
|
||||
const exp1 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:releases|archive)\/.*$/i
|
||||
const exp2 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:blob)\/.*$/i
|
||||
const exp3 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:info|git-upload-pack).*$/i
|
||||
const exp4 = /^(?:https?:\/\/)?raw\.githubusercontent\.com\/.+?\/.+?\/.+?\/.+$/i
|
||||
if (path.search(exp1) === 0 || !Config.cnpmjs && (path.search(exp3) === 0 || path.search(exp4))) {
|
||||
return httpHandler(req, path)
|
||||
} else if (path.search(exp2) === 0) {
|
||||
if (Config.jsdelivr){
|
||||
const newUrl = path.replace('/blob/', '@').replace(/^(?:https?:\/\/)?github\.com/, 'https://cdn.jsdelivr.net/gh')
|
||||
return Response.redirect(newUrl, 302)
|
||||
}else{
|
||||
path = path.replace('/blob/', '/raw/')
|
||||
return httpHandler(req, path)
|
||||
}
|
||||
} else if (path.search(exp3) === 0) {
|
||||
const newUrl = path.replace(/^(?:https?:\/\/)?github\.com/, 'https://github.com.cnpmjs.org')
|
||||
return Response.redirect(newUrl, 302)
|
||||
} else if (path.search(exp4) === 0) {
|
||||
const newUrl = path.replace(/(?<=com\/.+?\/.+?)\/(.+?\/)/, '@$1').replace(/^(?:https?:\/\/)?raw\.githubusercontent\.com/, 'https://cdn.jsdelivr.net/gh')
|
||||
return Response.redirect(newUrl, 302)
|
||||
} else {
|
||||
return fetch(ASSET_URL + path)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @param {Request} req
|
||||
* @param {string} pathname
|
||||
*/
|
||||
function httpHandler(req, pathname) {
|
||||
const reqHdrRaw = req.headers
|
||||
|
||||
// preflight
|
||||
if (req.method === 'OPTIONS' &&
|
||||
reqHdrRaw.has('access-control-request-headers')
|
||||
) {
|
||||
return new Response(null, PREFLIGHT_INIT)
|
||||
}
|
||||
|
||||
let rawLen = ''
|
||||
|
||||
const reqHdrNew = new Headers(reqHdrRaw)
|
||||
|
||||
let urlStr = pathname
|
||||
if (urlStr.startsWith('github')) {
|
||||
urlStr = 'https://' + urlStr
|
||||
}
|
||||
const urlObj = newUrl(urlStr)
|
||||
|
||||
/** @type {RequestInit} */
|
||||
const reqInit = {
|
||||
method: req.method,
|
||||
headers: reqHdrNew,
|
||||
redirect: 'follow',
|
||||
body: req.body
|
||||
}
|
||||
return proxy(urlObj, reqInit, rawLen, 0)
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {URL} urlObj
|
||||
* @param {RequestInit} reqInit
|
||||
*/
|
||||
async function proxy(urlObj, reqInit, rawLen) {
|
||||
const res = await fetch(urlObj.href, reqInit)
|
||||
const resHdrOld = res.headers
|
||||
const resHdrNew = new Headers(resHdrOld)
|
||||
|
||||
// verify
|
||||
if (rawLen) {
|
||||
const newLen = resHdrOld.get('content-length') || ''
|
||||
const badLen = (rawLen !== newLen)
|
||||
|
||||
if (badLen) {
|
||||
return makeRes(res.body, 400, {
|
||||
'--error': `bad len: ${newLen}, except: ${rawLen}`,
|
||||
'access-control-expose-headers': '--error',
|
||||
})
|
||||
}
|
||||
}
|
||||
const status = res.status
|
||||
resHdrNew.set('access-control-expose-headers', '*')
|
||||
resHdrNew.set('access-control-allow-origin', '*')
|
||||
|
||||
resHdrNew.delete('content-security-policy')
|
||||
resHdrNew.delete('content-security-policy-report-only')
|
||||
resHdrNew.delete('clear-site-data')
|
||||
|
||||
return new Response(res.body, {
|
||||
status,
|
||||
headers: resHdrNew,
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,152 @@
|
|||
// Website you intended to retrieve for users.
|
||||
const upstream = 'www.google.com'
|
||||
|
||||
// Custom pathname for the upstream website.
|
||||
const upstream_path = '/'
|
||||
|
||||
// Website you intended to retrieve for users using mobile devices.
|
||||
const upstream_mobile = 'www.google.com'
|
||||
|
||||
// Countries and regions where you wish to suspend your service.
|
||||
const blocked_region = ['KP', 'SY', 'PK', 'CU']
|
||||
|
||||
// IP addresses which you wish to block from using your service.
|
||||
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']
|
||||
|
||||
// Whether to use HTTPS protocol for upstream address.
|
||||
const https = true
|
||||
|
||||
// Whether to disable cache.
|
||||
const disable_cache = true
|
||||
|
||||
// Replace texts.
|
||||
const replace_dict = {
|
||||
'$upstream': '$custom_domain',
|
||||
'//google.com': ''
|
||||
}
|
||||
|
||||
addEventListener('fetch', event => {
|
||||
event.respondWith(fetchAndApply(event.request));
|
||||
})
|
||||
|
||||
async function fetchAndApply(request) {
|
||||
|
||||
const region = request.headers.get('cf-ipcountry').toUpperCase();
|
||||
const ip_address = request.headers.get('cf-connecting-ip');
|
||||
const user_agent = request.headers.get('user-agent');
|
||||
|
||||
let response = null;
|
||||
let url = new URL(request.url);
|
||||
let url_hostname = url.hostname;
|
||||
|
||||
if (https == true) {
|
||||
url.protocol = 'https:';
|
||||
} else {
|
||||
url.protocol = 'http:';
|
||||
}
|
||||
|
||||
if (await device_status(user_agent)) {
|
||||
var upstream_domain = upstream;
|
||||
} else {
|
||||
var upstream_domain = upstream_mobile;
|
||||
}
|
||||
|
||||
url.host = upstream_domain;
|
||||
if (url.pathname == '/') {
|
||||
url.pathname = upstream_path;
|
||||
} else {
|
||||
url.pathname = upstream_path + url.pathname;
|
||||
}
|
||||
|
||||
if (blocked_region.includes(region)) {
|
||||
response = new Response('Access denied: WorkersProxy is not available in your region yet.', {
|
||||
status: 403
|
||||
});
|
||||
} else if (blocked_ip_address.includes(ip_address)) {
|
||||
response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {
|
||||
status: 403
|
||||
});
|
||||
} else {
|
||||
let method = request.method;
|
||||
let request_headers = request.headers;
|
||||
let new_request_headers = new Headers(request_headers);
|
||||
|
||||
new_request_headers.set('Host', upstream_domain);
|
||||
new_request_headers.set('Referer', url.protocol + '//' + url_hostname);
|
||||
|
||||
let original_response = await fetch(url.href, {
|
||||
method: method,
|
||||
headers: new_request_headers
|
||||
})
|
||||
|
||||
let original_response_clone = original_response.clone();
|
||||
let original_text = null;
|
||||
let response_headers = original_response.headers;
|
||||
let new_response_headers = new Headers(response_headers);
|
||||
let status = original_response.status;
|
||||
|
||||
if (disable_cache) {
|
||||
new_response_headers.set('Cache-Control', 'no-store');
|
||||
}
|
||||
|
||||
new_response_headers.set('access-control-allow-origin', '*');
|
||||
new_response_headers.set('access-control-allow-credentials', true);
|
||||
new_response_headers.delete('content-security-policy');
|
||||
new_response_headers.delete('content-security-policy-report-only');
|
||||
new_response_headers.delete('clear-site-data');
|
||||
|
||||
if(new_response_headers.get("x-pjax-url")) {
|
||||
new_response_headers.set("x-pjax-url", response_headers.get("x-pjax-url").replace("//" + upstream_domain, "//" + url_hostname));
|
||||
}
|
||||
|
||||
const content_type = new_response_headers.get('content-type');
|
||||
if (content_type != null && content_type.includes('text/html') && content_type.includes('UTF-8')) {
|
||||
original_text = await replace_response_text(original_response_clone, upstream_domain, url_hostname);
|
||||
} else {
|
||||
original_text = original_response_clone.body
|
||||
}
|
||||
|
||||
response = new Response(original_text, {
|
||||
status,
|
||||
headers: new_response_headers
|
||||
})
|
||||
}
|
||||
return response;
|
||||
}
|
||||
|
||||
async function replace_response_text(response, upstream_domain, host_name) {
|
||||
let text = await response.text()
|
||||
|
||||
var i, j;
|
||||
for (i in replace_dict) {
|
||||
j = replace_dict[i]
|
||||
if (i == '$upstream') {
|
||||
i = upstream_domain
|
||||
} else if (i == '$custom_domain') {
|
||||
i = host_name
|
||||
}
|
||||
|
||||
if (j == '$upstream') {
|
||||
j = upstream_domain
|
||||
} else if (j == '$custom_domain') {
|
||||
j = host_name
|
||||
}
|
||||
|
||||
let re = new RegExp(i, 'g')
|
||||
text = text.replace(re, j);
|
||||
}
|
||||
return text;
|
||||
}
|
||||
|
||||
|
||||
async function device_status(user_agent_info) {
|
||||
var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
|
||||
var flag = true;
|
||||
for (var v = 0; v < agents.length; v++) {
|
||||
if (user_agent_info.indexOf(agents[v]) > 0) {
|
||||
flag = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return flag;
|
||||
}
|
||||
Loading…
Reference in New Issue