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fix(cors): fixup #4985, allow same-origin ws requests of any domain #5142

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merged 2 commits into from Feb 4, 2020
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fix(cors): fixup #4985, allow same-origin ws requests of any domain #5142

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a903d65
fix: followup of #4985, allow same-site ws requests of any domain
sodatea Feb 4, 2020
a3504a3
fix: match whole string
sodatea Feb 4, 2020
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19 changes: 13 additions & 6 deletions packages/@vue/cli/lib/ui.js
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Expand Up @@ -2,6 +2,18 @@ const { log, error, openBrowser } = require('@vue/cli-shared-utils')
const { portfinder, server } = require('@vue/cli-ui/server')
const shortid = require('shortid')

function simpleCorsValidation (allowedHost) {
return function (req, socket) {
const { host, origin } = req.headers
// maybe we should just use strict string equal?
const hostRegExp = new RegExp(`^(${host}|${allowedHost}|localhost)(:\\d+)?$`)

if (!origin || !hostRegExp.test(origin)) {
socket.destroy()
}
}
}

async function ui (options = {}, context = process.cwd()) {
const host = options.host || 'localhost'

Expand Down Expand Up @@ -69,12 +81,7 @@ async function ui (options = {}, context = process.cwd()) {
}
})

httpServer.on('upgrade', (req, socket) => {
const { origin } = req.headers
if (!origin || !(new RegExp(host)).test(origin)) {
socket.destroy()
}
})
httpServer.on('upgrade', simpleCorsValidation(host))
}

module.exports = (...args) => {
Expand Down