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import express from 'express'
import RateLimit from 'express-rate-limit'
import { logger } from '@server/helpers/logger'
import { buildUUID } from '@server/helpers/uuid'
import { CONFIG } from '@server/initializers/config'
import { getAuthNameFromRefreshGrant, getBypassFromExternalAuth, getBypassFromPasswordGrant } from '@server/lib/auth/external-auth'
import { handleOAuthToken } from '@server/lib/auth/oauth'
import { BypassLogin, revokeToken } from '@server/lib/auth/oauth-model'
import { Hooks } from '@server/lib/plugins/hooks'
import { asyncMiddleware, authenticate, openapiOperationDoc } from '@server/middlewares'
import { ScopedToken } from '@shared/models/users/user-scoped-token'
const tokensRouter = express.Router()
const loginRateLimiter = RateLimit({
windowMs: CONFIG.RATES_LIMIT.LOGIN.WINDOW_MS,
max: CONFIG.RATES_LIMIT.LOGIN.MAX
})
tokensRouter.post('/token',
loginRateLimiter,
openapiOperationDoc({ operationId: 'getOAuthToken' }),
asyncMiddleware(handleToken)
)
tokensRouter.post('/revoke-token',
openapiOperationDoc({ operationId: 'revokeOAuthToken' }),
authenticate,
asyncMiddleware(handleTokenRevocation)
)
tokensRouter.get('/scoped-tokens',
authenticate,
getScopedTokens
)
tokensRouter.post('/scoped-tokens',
authenticate,
asyncMiddleware(renewScopedTokens)
)
// ---------------------------------------------------------------------------
export {
tokensRouter
}
// ---------------------------------------------------------------------------
async function handleToken (req: express.Request, res: express.Response, next: express.NextFunction) {
const grantType = req.body.grant_type
try {
const bypassLogin = await buildByPassLogin(req, grantType)
const refreshTokenAuthName = grantType === 'refresh_token'
? await getAuthNameFromRefreshGrant(req.body.refresh_token)
: undefined
const options = {
refreshTokenAuthName,
bypassLogin
}
const token = await handleOAuthToken(req, options)
res.set('Cache-Control', 'no-store')
res.set('Pragma', 'no-cache')
Hooks.runAction('action:api.user.oauth2-got-token', { username: token.user.username, ip: req.ip, req, res })
return res.json({
token_type: 'Bearer',
access_token: token.accessToken,
refresh_token: token.refreshToken,
expires_in: token.accessTokenExpiresIn,
refresh_token_expires_in: token.refreshTokenExpiresIn
})
} catch (err) {
logger.warn('Login error', { err })
return res.fail({
status: err.code,
message: err.message,
type: err.name
})
}
}
async function handleTokenRevocation (req: express.Request, res: express.Response) {
const token = res.locals.oauth.token
const result = await revokeToken(token, { req, explicitLogout: true })
return res.json(result)
}
function getScopedTokens (req: express.Request, res: express.Response) {
const user = res.locals.oauth.token.user
return res.json({
feedToken: user.feedToken
} as ScopedToken)
}
async function renewScopedTokens (req: express.Request, res: express.Response) {
const user = res.locals.oauth.token.user
user.feedToken = buildUUID()
await user.save()
return res.json({
feedToken: user.feedToken
} as ScopedToken)
}
async function buildByPassLogin (req: express.Request, grantType: string): Promise<BypassLogin> {
if (grantType !== 'password') return undefined
if (req.body.externalAuthToken) {
// Consistency with the getBypassFromPasswordGrant promise
return getBypassFromExternalAuth(req.body.username, req.body.externalAuthToken)
}
return getBypassFromPasswordGrant(req.body.username, req.body.password)
}
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