PeerTube/server/middlewares/oauth.ts

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import * as express from 'express'
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import * as OAuthServer from 'express-oauth-server'
import { OAUTH_LIFETIME } from '../initializers/constants'
import { logger } from '../helpers/logger'
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import { Socket } from 'socket.io'
import { getAccessToken } from '../lib/oauth-model'
const oAuthServer = new OAuthServer({
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useErrorHandler: true,
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accessTokenLifetime: OAUTH_LIFETIME.ACCESS_TOKEN,
refreshTokenLifetime: OAUTH_LIFETIME.REFRESH_TOKEN,
model: require('../lib/oauth-model')
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})
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function authenticate (req: express.Request, res: express.Response, next: express.NextFunction) {
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oAuthServer.authenticate()(req, res, err => {
if (err) {
logger.warn('Cannot authenticate.', { err })
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return res.status(err.status)
.json({
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error: 'Token is invalid.',
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code: err.name
})
.end()
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}
return next()
})
}
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function authenticateSocket (socket: Socket, next: (err?: any) => void) {
const accessToken = socket.handshake.query.accessToken
logger.debug('Checking socket access token %s.', accessToken)
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if (!accessToken) return next(new Error('No access token provided'))
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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()
}
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function token (req: express.Request, res: express.Response, next: express.NextFunction) {
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return oAuthServer.token()(req, res, err => {
if (err) {
return res.status(err.status)
.json({
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error: err.message,
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code: err.name
})
.end()
}
return next()
})
}
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// ---------------------------------------------------------------------------
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export {
authenticate,
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authenticateSocket,
authenticatePromiseIfNeeded,
optionalAuthenticate,
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token
}