搭建自用的npm、yarn的registry镜像
**前提是你有自己域名并托管在cf****源码地址：(https://github.com/Shadownc/cloudflare-npm-proxy)**
``` js
const CUSTOM_DOMAINS = {
'npm.example.com': 'https://registry.npmjs.org',
'yarn.example.com': 'https://registry.yarnpkg.com',
// 你可以添加更多的镜像地址
};
const DEFAULT_UPSTREAM = CUSTOM_DOMAINS['npm.example.com'];
const json = (data = {}, code = 200, headers = {}) => {
return new Response(JSON.stringify(data), {
status: code,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*',
'X-Powered-By': 'X-Powered-By cloudflare npm proxy',
...headers,
},
});
};
// 路由函数，根据请求的主机名选择相应的上游地址
function routeByHosts(host) {
return CUSTOM_DOMAINS || DEFAULT_UPSTREAM;
}
export default {
async fetch(request, env, ctx) {
const url = new URL(request.url);
const upstream = routeByHosts(url.hostname);
if (request.method !== 'GET') {
return Response.redirect(`${upstream}${url.pathname}`, 302);
}
if (url.pathname === '/') {
return new Response(`Hello ${url.hostname}`);
}
const fetchUrl = `${upstream}${url.pathname}`;
const response = await fetch(fetchUrl);
if (url.pathname.endsWith('.tgz')) {
const contentType = response.headers.get('content-type');
if (contentType && contentType.indexOf('application/json') !== -1) {
const errorData = await response.json();
return json({ error: `Fetch failed: ${errorData.message}` }, 500);
} else {
return response;
}
}
const data = await response.json();
if (data.error) {
return json(data, 500);
}
if (data && data.dist && data.dist.tarball) {
data.dist.tarball = data.dist.tarball.replace(upstream, url.hostname);
}
return json(data);
},
};
```
直接复制代码发布到cf的Workers配置自定义域即可。
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