PeerTube/server/middlewares/secure.ts

54 lines
1.4 KiB
TypeScript

import 'express-validator'
import * as express from 'express'
import { database as db } from '../initializers'
import {
logger,
checkSignature as peertubeCryptoCheckSignature
} from '../helpers'
function checkSignature (req: express.Request, res: express.Response, next: express.NextFunction) {
const host = req.body.signature.host
db.Pod.loadByHost(host, function (err, pod) {
if (err) {
logger.error('Cannot get signed host in body.', { error: err })
return res.sendStatus(500)
}
if (pod === null) {
logger.error('Unknown pod %s.', host)
return res.sendStatus(403)
}
logger.debug('Checking signature from %s.', host)
let signatureShouldBe
// If there is data in the body the sender used it for its signature
// If there is no data we just use its host as signature
if (req.body.data) {
signatureShouldBe = req.body.data
} else {
signatureShouldBe = host
}
const signatureOk = peertubeCryptoCheckSignature(pod.publicKey, signatureShouldBe, req.body.signature.signature)
if (signatureOk === true) {
res.locals.secure = {
pod
}
return next()
}
logger.error('Signature is not okay in body for %s.', req.body.signature.host)
return res.sendStatus(403)
})
}
// ---------------------------------------------------------------------------
export {
checkSignature
}