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import * as express from 'express'
import * as OAuthServer from 'express-oauth-server'
import 'express-validator'
import { OAUTH_LIFETIME } from '../initializers'
import { logger } from '../helpers/logger'
import { Socket } from 'socket.io'
import { getAccessToken } from '../lib/oauth-model'
const oAuthServer = new OAuthServer({
useErrorHandler: true,
accessTokenLifetime: OAUTH_LIFETIME.ACCESS_TOKEN,
refreshTokenLifetime: OAUTH_LIFETIME.REFRESH_TOKEN,
model: require('../lib/oauth-model')
})
function authenticate (req: express.Request, res: express.Response, next: express.NextFunction) {
oAuthServer.authenticate()(req, res, err => {
if (err) {
logger.warn('Cannot authenticate.', { err })
return res.status(err.status)
.json({
error: 'Token is invalid.',
code: err.name
})
.end()
}
return next()
})
}
function authenticateSocket (socket: Socket, next: (err?: any) => void) {
const accessToken = socket.handshake.query.accessToken
logger.debug('Checking socket access token %s.', accessToken)
getAccessToken(accessToken)
.then(tokenDB => {
const now = new Date()
if (!tokenDB || tokenDB.accessTokenExpiresAt < now || tokenDB.refreshTokenExpiresAt < now) {
return next(new Error('Invalid access token.'))
}
socket.handshake.query.user = tokenDB.User
return next()
})
}
function authenticatePromiseIfNeeded (req: express.Request, res: express.Response) {
return new Promise(resolve => {
// Already authenticated? (or tried to)
if (res.locals.oauth && res.locals.oauth.token.User) return resolve()
if (res.locals.authenticated === false) return res.sendStatus(401)
authenticate(req, res, () => {
return resolve()
})
})
}
function optionalAuthenticate (req: express.Request, res: express.Response, next: express.NextFunction) {
if (req.header('authorization')) return authenticate(req, res, next)
res.locals.authenticated = false
return next()
}
function token (req: express.Request, res: express.Response, next: express.NextFunction) {
return oAuthServer.token()(req, res, err => {
if (err) {
return res.status(err.status)
.json({
error: err.message,
code: err.name
})
.end()
}
return next()
})
}
// ---------------------------------------------------------------------------
export {
authenticate,
authenticateSocket,
authenticatePromiseIfNeeded,
optionalAuthenticate,
token
}
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