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'use strict'
const db = require('../initializers/database')
const logger = require('../helpers/logger')
const peertubeCrypto = require('../helpers/peertube-crypto')
const secureMiddleware = {
checkSignature
}
function checkSignature (req, res, next) {
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 = peertubeCrypto.checkSignature(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)
})
}
// ---------------------------------------------------------------------------
module.exports = secureMiddleware
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