使用CloudFlare Worker 来免费部署 JSProxy 服务
介绍
CloudFlare Worker 是 CloudFlare 的边缘计算服务。开发者可通过 JavaScript 对 CDN 进行编程,从而能灵活处理 HTTP 请求。这使得很多任务可在 CDN 上完成,无需自己的服务器参与
免费版每天有 10 万次免费请求,对于个人通常足够。
如果不够用,可注册多个 Worker,在 conf.js 中配置多线路负载均衡。或者升级到 $5 的高级版本,每月可用 1000 万次请求(超出部分 $0.5/百万次请求)。
使用前准备
1、一个Google账号用来注册CloudFlare
2、一个灵活的脑子
开始
1.打开网站CloudFlare(cloudflare.com),注册一个账号
2.激活Workers服务
3.创建一个Worker
4.在左侧代码区域输入以下链接内代码即可
https://github.com/EtherDream/jsproxy/blob/master/cf-worker/index.js
效果如下:
自定义域名
将你的域名(xxx.workers.dev)解析CNAME到你想要的域名,并开启CDN
拓展
镜像整个网站
// 替换成你想镜像的站点
const upstream = 'www.google.com'
// 如果那个站点有专门的移动适配站点,否则保持和上面一致
const upstream_mobile = 'www.google.com'
// 你希望禁止哪些国家访问
const blocked_region = ['RU']
// 禁止自访问
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']
// 替换成你想镜像的站点
const replace_dict = {
'$upstream': '$custom_domain',
'//www.google.com': ''
}
//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 == '$custom_domain') {
j = host_name
}
let re = new RegExp(i, 'g')
text = text.replace(re, j);
}
return text;
}
async function device_status (user_agent_info) {
var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
var flag = true;
for (var v = 0; v < agents.length; v++) { if (user_agent_info.indexOf(agents[v]) > 0) {
flag = false;
break;
}
}
return flag;
}
镜像网站带密码访问
// 替换成你想镜像的站点
const upstream = 'google.com'
// 如果那个站点有专门的移动适配站点,否则保持和上面一致
const upstream_mobile = 'm.google.com'
// 密码访问
const openAuth = false
const username = 'username'
const password = 'password'
// 你希望禁止哪些国家访问
const blocked_region = ['RU']
// 禁止自访问
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']
// 替换成你想镜像的站点
const replace_dict = {
'$upstream': '$custom_domain',
'//google.com': ''
}
function unauthorized() {
return new Response('Unauthorized', {
headers: {
'WWW-Authenticate': 'Basic realm="goindex"',
'Access-Control-Allow-Origin': '*'
},
status: 401
});
}
function parseBasicAuth(auth) {
try {
return atob(auth.split(' ').pop()).split(':');
} catch (e) {
return [];
}
}
function doBasicAuth(request) {
const auth = request.headers.get('Authorization');
if (!auth || !/^Basic [A-Za-z0-9._~+/-]+=*$/i.test(auth)) {
return false;
}
const [user, pass] = parseBasicAuth(auth);
return user === username && pass === password;
}
async function fetchAndApply(request) {
if (request.method === 'OPTIONS') // allow preflight request
return new Response('', {
status: 200,
headers: {
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Headers': '*',
'Access-Control-Allow-Methods': 'GET, POST, PUT, HEAD, OPTIONS'
}
});
if (openAuth && !doBasicAuth(request)) {
return unauthorized();
}
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;
}
addEventListener('fetch', event => {
event.respondWith(fetchAndApply(event.request).catch(err => {
console.error(err);
new Response(JSON.stringify(err.stack), {
status: 500,
headers: {
'Content-Type': 'application/json'
}
});
}));
})
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;
}
'''
## 镜像网站指定目录
```javascript
// 你要镜像的网站.
const upstream = 'objectstorage.ap-seoul-1.oraclecloud.com'
// 镜像网站的目录,比如你想镜像某个网站的二级目录则填写二级目录的目录名,镜像 google 用不到,默认即可.
const upstream_path = '/test/'
// 镜像站是否有手机访问专用网址,没有则填一样的.
const upstream_mobile = 'objectstorage.ap-seoul-1.oraclecloud.com'
// 屏蔽国家和地区.
const blocked_region = ['']
// 屏蔽 IP 地址.
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']
// 镜像站是否开启 HTTPS.
const https = true
// 文本替换.填你要镜像的网站
const replace_dict = {
'$upstream': '$custom_domain',
'//objectstorage.ap-seoul-1.oraclecloud.com': ''
}
// 以下保持默认,不要动
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 = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"
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;
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_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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