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import { Request, Response, NextFunction } from 'express'
import { database as db } from '../initializers'
import {
logger,
getAccountFromWebfinger,
isSignatureVerified
} from '../helpers'
import { ActivityPubSignature } from '../../shared'
async function checkSignature (req: Request, res: Response, next: NextFunction) {
const signatureObject: ActivityPubSignature = req.body.signature
logger.debug('Checking signature of account %s...', signatureObject.creator)
let account = await db.Account.loadByUrl(signatureObject.creator)
// We don't have this account in our database, fetch it on remote
if (!account) {
account = await getAccountFromWebfinger(signatureObject.creator)
if (!account) {
return res.sendStatus(403)
}
// Save our new account in database
await account.save()
}
const verified = await isSignatureVerified(account, req.body)
if (verified === false) return res.sendStatus(403)
res.locals.signature.account = account
return next()
}
function executeIfActivityPub (fun: any | any[]) {
return (req: Request, res: Response, next: NextFunction) => {
if (req.header('Accept') !== 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"') {
return next()
}
if (Array.isArray(fun) === true) {
fun[0](req, res, next) // FIXME: doesn't work
}
return fun(req, res, next)
}
}
// ---------------------------------------------------------------------------
export {
checkSignature,
executeIfActivityPub
}
|
