前往小程序,Get更优阅读体验!
立即前往
首页
学习
活动
专区
工具
TVP
发布
社区首页 >专栏 >利用cloudflareWorkers制作Google镜像站

利用cloudflareWorkers制作Google镜像站

作者头像
发布2020-08-19 16:34:07
2.6K0
发布2020-08-19 16:34:07
举报
文章被收录于专栏:奝-大周

今天在群里看到大佬弄的谷歌镜像站,于是也学着部署了一份

首先我们需要注册一个Cloudflare账号

cloudflare官网: https://www.cloudflare.com/

注册登录之后选择workers

点击创建worker

将下边的代码粘贴到左边代码框

代码语言:javascript
复制
// 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', url.hostname);
​        new_request_headers.set('Referer', 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.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;
}

左上角项目名可以修改

然后点击保存并部署就可以了 可以先点击右边的预览查看效果

可以返回首页点击workers来管理

下面是我创建的镜像

http://gg.d1a0.workers.dev/

虽然Cloudflare Workers 每天只有10万次免费的请求 ,不过也够个人使用了。

本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。
原始发表:2020-5-11,如有侵权请联系 cloudcommunity@tencent.com 删除

本文分享自 作者个人站点/博客 前往查看

如有侵权,请联系 cloudcommunity@tencent.com 删除。

本文参与 腾讯云自媒体同步曝光计划  ,欢迎热爱写作的你一起参与!

评论
登录后参与评论
0 条评论
热度
最新
推荐阅读
领券
问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档