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