cloudtube_fork/api/proxy.js

28 lines
1.2 KiB
JavaScript

const {proxy} = require("pinski/plugins")
const {getUser} = require("../utils/getuser")
const constants = require("../utils/constants.js")
// list of paths relative to the backend this route is authorized to serve
const authorizedPaths = [`/api/v1/captions/(${constants.regex.video_id})`]
// headers relayed as-is from the proxied backend to the client
const proxiedHeaders = ["content-type", "date", "last-modified", "expires", "cache-control", "accept-ranges", "content-range", "origin", "etag", "content-length", "transfer-encoding"]
module.exports = [
{
route: `/proxy`, methods: ["GET"], code: async ({req, fill, url}) => {
const instanceOrigin = getUser(req).getSettingsOrDefaults().instance
const remotePath = url.searchParams.get("url")
const fetchURL = new URL(remotePath, instanceOrigin)
if (!fetchURL.toString().startsWith(instanceOrigin) || !authorizedPaths.some(element => fetchURL.pathname.match(new RegExp(`^${element}$`)))) {
return {
statusCode: 401,
content: "CloudTube: Unauthorized",
contentType: "text/plain"
}
}
return proxy(fetchURL, {}, (h) => Object.keys(h).filter(key => proxiedHeaders.includes(key)).reduce((res, key) => (res[key] = h[key], res), {}))
}
}
]