【Github加速】利用cloudflare创建Github加速拉取项目

注意: 本文最后更新于 164 天前,内容可能已不再准确,请酌情参考。

前言

由于Github是国外的网站,虽然国内也可以访问,但是实际还是很慢,更别说拉取Github的项目,一些相关的文件等操作,所以今天给各位带来利用cloudflare白嫖他的Workers来配置加速Github项目拉取。

创建cloudflare帐号并配置域名DNS

可以参考下方文章,进行创建配置域名的DNS,如果你已经OK了那我们继续下一步

20240629233300340353
【Cloudflare】注册Cloudflare帐号并绑定域名更改DNS设置
注意: 本文最后更新于 164 天前,内容可能已不再准确,请酌情参考。前言 Cloudflare 是互联网上最大的网络之一,因为其有免费白嫖的CDN所以一般都拿来套CDN,……

配置Workers

  1. 首先我们点击左侧Workers 和 Pages,然后如图所示,点击创建Workers
    20240701210118122235
  2. 跳转设置项目名,一般来说默认就行,你要自定义也行。设置好后记得点击保存,再点击完成即可
    20240701210240123842
  3. 然后就会出现成功!您的项目已部署到以下区域:全球,点击右侧的编辑代码。
    20240701210418577533
  4. 跳转编辑代码的页面,我们将原有的代码全选删除,复制下面的代码,黏贴到里面。
    '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: 0
    }
    
    /** @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',
        }),
    }
    
    const exp1 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:releases|archive)\/.*$/i
    const exp2 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:blob|raw)\/.*$/i
    const exp3 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:info|git-).*$/i
    const exp4 = /^(?:https?:\/\/)?raw\.(?:githubusercontent|github)\.com\/.+?\/.+?\/.+?\/.+$/i
    const exp5 = /^(?:https?:\/\/)?gist\.(?:githubusercontent|github)\.com\/.+?\/.+?\/.+$/i
    const exp6 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/tags.*$/i
    
    /**
     * @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)
    })
    
    function checkUrl(u) {
        for (let i of [exp1, exp2, exp3, exp4, exp5, exp6 ]) {
            if (u.search(i) === 0) {
                return true
            }
        }
        return false
    }
    
    /**
     * @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://')
        if (path.search(exp1) === 0 || path.search(exp5) === 0 || path.search(exp6) === 0 || !Config.cnpmjs && (path.search(exp3) === 0 || path.search(exp4) === 0)) {
            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|github)\.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)
        }
    
        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: 'manual',
            body: req.body
        }
        return proxy(urlObj, reqInit)
    }
    
    /**
     *
     * @param {URL} urlObj
     * @param {RequestInit} reqInit
     */
    async function proxy(urlObj, reqInit) {
        const res = await fetch(urlObj.href, reqInit)
        const resHdrOld = res.headers
        const resHdrNew = new Headers(resHdrOld)
    
        const status = res.status
    
        if (resHdrNew.has('location')) {
            let _location = resHdrNew.get('location')
            if (checkUrl(_location))
                resHdrNew.set('location', PREFIX + _location)
            else {
                reqInit.redirect = 'follow'
                return proxy(newUrl(_location), reqInit)
            }
        }
        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,
        })
    }

     

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  1. 黏贴完毕后我们可以按键盘的Shift+S,保存代码,然后点击右上角的部署,要出现最下面绿色的提示:版本已保存,才可以噢
    20240701210850617479
  2. 完事后点击左上角返回,点击设置--触发器--在添加自定义域那里填写你需要展示的二级域名,如果你一开始创建cloudflare后绑定打算使用的域名是:xxx.xx那你这里就需要填写123.xxx.xx(这里123可以替换,XXX.XX就是你的域名,自己替换一下。)搞定后就可以点击右下角添加自定义域即可。
    20240701211229867541
  3. 验证是否成功,输入你上述填写的域名,然后点击打开就行了
    20240701211517795094

关于如何加速

比如原项目是

https://github.com/xxx/xxx.zip

那你要添加的展示为:

https://123.xxx.xx/https://github.com/xxx/xxx.zip
阅读剩余
THE END