【从零开始配置VPS】06:CF Worker 反代 jsDelivr

第一步 部署Worker

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// 替换成你想镜像的站点
const upstream = 'jscdn.limour.top'

// 如果那个站点有专门的移动适配站点,否则保持和上面一致
const upstream_mobile = 'jscdn.limour.top'

const blocked_region = []

const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

const replace_dict = {
'$upstream': 'jscdn.limour.top',
'//jscdn.limour.top': '//jscdn.limour.top'
}

//以下内容都不用动
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_host = url.host;

if (url.protocol == 'http:') {
url.protocol = 'https:'
response = Response.redirect(url.href);
return response;
}

if (await device_status(user_agent)) {
upstream_domain = upstream
} else {
upstream_domain = upstream_mobile
}

url.host = upstream_domain;

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.href);

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;

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');

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_host);
} 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;
}

第二步 添加路由

  • jscdn.limour.top/*

第三步 添加替换

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sub_filter_once off;
sub_filter_types *;
sub_filter "jscdn.limour.top" "jscdn.limour.top";
sub_filter "jscdn.limour.top" "jscdn.limour.top";
sub_filter "jscdn.limour.top/gh/Limour-dev/Sakurairo_Vision/" "jscdn.limour.top/gh/Limour-dev/Sakurairo_Vision/";

【从零开始配置VPS】06:CF Worker 反代 jsDelivr
https://occdn.limour.top/2502.html
Author
Limour
Posted on
January 5, 2023
Licensed under