96 lines
3.2 KiB
JavaScript
96 lines
3.2 KiB
JavaScript
'use strict'
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const Router = require('express').Router
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const passport = require('passport')
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const SamlStrategy = require('passport-saml').Strategy
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const config = require('../../../config')
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const models = require('../../../models')
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const logger = require('../../../logger')
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const {urlencodedParser} = require('../../utils')
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const fs = require('fs')
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const intersection = function (array1, array2) { return array1.filter((n) => array2.includes(n)) }
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let samlAuth = module.exports = Router()
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passport.use(new SamlStrategy({
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callbackUrl: config.serverURL + '/auth/saml/callback',
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entryPoint: config.saml.idpSsoUrl,
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issuer: config.saml.issuer || config.serverURL,
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cert: fs.readFileSync(config.saml.idpCert, 'utf-8'),
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identifierFormat: config.saml.identifierFormat
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}, function (user, done) {
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// check authorization if needed
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if (config.saml.externalGroups && config.saml.groupAttribute) {
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var externalGroups = intersection(config.saml.externalGroups, user[config.saml.groupAttribute])
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if (externalGroups.length > 0) {
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logger.error('saml permission denied: ' + externalGroups.join(', '))
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return done('Permission denied', null)
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}
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}
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if (config.saml.requiredGroups && config.saml.groupAttribute) {
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if (intersection(config.saml.requiredGroups, user[config.saml.groupAttribute]).length === 0) {
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logger.error('saml permission denied')
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return done('Permission denied', null)
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}
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}
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// user creation
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var uuid = user[config.saml.attribute.id] || user.nameID
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var profile = {
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provider: 'saml',
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id: 'SAML-' + uuid,
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username: user[config.saml.attribute.username] || user.nameID,
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emails: user[config.saml.attribute.email] ? [user[config.saml.attribute.email]] : []
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}
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if (profile.emails.length === 0 && config.saml.identifierFormat === 'urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress') {
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profile.emails.push(user.nameID)
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}
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var stringifiedProfile = JSON.stringify(profile)
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models.User.findOrCreate({
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where: {
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profileid: profile.id.toString()
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},
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defaults: {
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profile: stringifiedProfile
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}
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}).spread(function (user, created) {
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if (user) {
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var needSave = false
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if (user.profile !== stringifiedProfile) {
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user.profile = stringifiedProfile
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needSave = true
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}
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if (needSave) {
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user.save().then(function () {
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if (config.debug) { logger.debug('user login: ' + user.id) }
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return done(null, user)
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})
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} else {
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if (config.debug) { logger.debug('user login: ' + user.id) }
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return done(null, user)
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}
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}
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}).catch(function (err) {
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logger.error('saml auth failed: ' + err)
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return done(err, null)
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})
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}))
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samlAuth.get('/auth/saml',
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passport.authenticate('saml', {
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successReturnToOrRedirect: config.serverURL + '/',
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failureRedirect: config.serverURL + '/'
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})
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)
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samlAuth.post('/auth/saml/callback', urlencodedParser,
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passport.authenticate('saml', {
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successReturnToOrRedirect: config.serverURL + '/',
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failureRedirect: config.serverURL + '/'
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})
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)
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samlAuth.get('/auth/saml/metadata', function (req, res) {
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res.type('application/xml')
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res.send(passport._strategy('saml').generateServiceProviderMetadata())
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})
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