简单三步利用cf works反代api.cloudflare.com

rasell9

接上贴：api.cloudflare.com被墙了，有人宣布对此负责吗

如果你也受api.cloudflare.com假墙影响，可以利用cf Worker反代cf Api

原出处：https://www.nadph.net/archives/145

1.创建一个Worker,部署后编辑代码

2.贴上代码

1. // Website you intended to retrieve for users.const upstream = api.cloudflare.com'// Custom pathname for the upstream website.const upstream_path = '/'// Website you intended to retrieve for users using mobile devices.const upstream_mobile = upstream// Countries and regions where you wish to suspend your service.const blocked_region = []// 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 = false// Replace texts.const replace_dict = {    '$upstream': '$custom_domain',}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,            body: request.body        })        connection_upgrade = new_request_headers.get("Upgrade");        if (connection_upgrade && connection_upgrade.toLowerCase() == "websocket") {            return original_response;        }        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;}

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3.绑定自己的域名
因Worker的域名也是被墙的，所以我们需要用自己的域名，在 Worker 的管理界面中，点击 “Custom Domians” 中的 “Add Custom Domain” 按钮以绑定域名，至此成功。