a/code-server-2
1
0
Fork 0
mirror of https://git.tuxpa.in/a/code-server.git synced 2024-12-28 21:25:25 +00:00
Code Issues Projects Releases Wiki Activity

Tweak proxy fallthrough behavior

Browse Source 
It will now redirect all HTML requests. Also it avoids req.accepts since
that's always truthy.
This commit is contained in:
Asher 2020-11-05 16:42:58 -06:00
parent cb991a9143
commit f6c4434191
No known key found for this signature in database
GPG Key ID: D63C1EF81242354A
1 changed files with 20 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/node/proxy.ts
View File

@ -1,7 +1,7 @@
import { Request, Router } from "express"
import proxyServer from "http-proxy"
import { HttpCode, HttpError } from "../common/http"
import { authenticated, ensureAuthenticated } from "./http"
import { authenticated, ensureAuthenticated, redirect } from "./http"
import { Router as WsRouter } from "./wsRouter"
export const proxy = proxyServer.createProxyServer({})
@ -44,25 +44,6 @@ const maybeProxy = (req: Request): string | undefined => {
return port
}
/**
* Determine if the user is browsing /, /login, or static assets and if so fall
* through to allow the redirect and login flow.
*/
const shouldFallThrough = (req: Request): boolean => {
// See if it looks like a request for the root or login HTML.
if (req.accepts("text/html")) {
if (
(req.path === "/" && req.method === "GET") ||
(/\/login\/?/.test(req.path) && (req.method === "GET" || req.method === "POST"))
) {
return true
}
}
// See if it looks like a request for a static asset.
return req.path.startsWith("/static/") && req.method === "GET"
}
router.all("*", (req, res, next) => {
const port = maybeProxy(req)
if (!port) {
@ -71,9 +52,27 @@ router.all("*", (req, res, next) => {
// Must be authenticated to use the proxy.
if (!authenticated(req)) {
if (shouldFallThrough(req)) {
// Let the assets through since they're used on the login page.
if (req.path.startsWith("/static/") && req.method === "GET") {
return next()
}
// Assume anything that explicitly accepts text/html is a user browsing a
// page (as opposed to an xhr request). Don't use `req.accepts()` since
// *every* request that I've seen (in Firefox and Chromium at least)
// includes `*/*` making it always truthy.
if (typeof req.headers.accepts === "string" && req.headers.accepts.split(",").includes("text/html")) {
// Let the login through.
if (/\/login\/?/.test(req.path)) {
return next()
}
// Redirect all other pages to the login.
return redirect(req, res, "login", {
to: req.path,
})
}
// Everything else gets an unauthorized message.
throw new HttpError("Unauthorized", HttpCode.Unauthorized)
}