From 40b385570291278f44806446f702ee61e1382805 Mon Sep 17 00:00:00 2001 From: Pedro Ferreira Date: Tue, 27 Jun 2017 19:08:05 +0200 Subject: Add support for generic OAuth2 providers Signed-off-by: Pedro Ferreira --- lib/web/auth/index.js | 1 + lib/web/auth/oauth2/index.js | 106 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 107 insertions(+) create mode 100644 lib/web/auth/oauth2/index.js (limited to 'lib/web/auth') diff --git a/lib/web/auth/index.js b/lib/web/auth/index.js index eb42fb36..61e7c3f9 100644 --- a/lib/web/auth/index.js +++ b/lib/web/auth/index.js @@ -43,6 +43,7 @@ if (config.isDropboxEnable) authRouter.use(require('./dropbox')) if (config.isGoogleEnable) authRouter.use(require('./google')) if (config.isLDAPEnable) authRouter.use(require('./ldap')) if (config.isSAMLEnable) authRouter.use(require('./saml')) +if (config.isOAuth2Enable) authRouter.use(require('./oauth2')) if (config.isEmailEnable) authRouter.use(require('./email')) // logout diff --git a/lib/web/auth/oauth2/index.js b/lib/web/auth/oauth2/index.js new file mode 100644 index 00000000..f2a3132d --- /dev/null +++ b/lib/web/auth/oauth2/index.js @@ -0,0 +1,106 @@ +'use strict' + +const Router = require('express').Router +const passport = require('passport') +const OAuth2Strategy = require('passport-oauth2').Strategy +const config = require('../../../config') +const {setReturnToFromReferer, passportGeneralCallback} = require('../utils') + +let oauth2Auth = module.exports = Router() + +class OAuth2CustomStrategy extends OAuth2Strategy { + constructor (options, verify) { + options.customHeaders = options.customHeaders || {} + super(options, verify) + this.name = 'oauth2' + this._userProfileURL = options.userProfileURL + this._oauth2.useAuthorizationHeaderforGET(true) + } + + userProfile (accessToken, done) { + this._oauth2.get(this._userProfileURL, accessToken, function (err, body, res) { + var json + + if (err) { + return done(new passport.InternalOAuthError('Failed to fetch user profile', err)) + } + + try { + json = JSON.parse(body) + } catch (ex) { + return done(new Error('Failed to parse user profile')) + } + + let profile = parseProfile(json) + profile.provider = 'oauth2' + + done(null, profile) + }) + } +} + +function extractProfileAttribute (data, path) { + // can handle stuff like `attrs[0].name` + path = path.split('.') + for (const segment of path) { + const m = segment.match(/([\d\w]+)\[(.*)\]/) + data = m ? data[m[1]][m[2]] : data[segment] + } + return data +} + +function parseProfile (data) { + const username = extractProfileAttribute(data, config.oauth2.userProfileUsernameAttr) + const displayName = extractProfileAttribute(data, config.oauth2.userProfileDisplayNameAttr) + const email = extractProfileAttribute(data, config.oauth2.userProfileEmailAttr) + + return { + id: username, + username: username, + displayName: displayName, + email: email + } +} + +OAuth2CustomStrategy.prototype.userProfile = function (accessToken, done) { + this._oauth2.get(this._userProfileURL, accessToken, function (err, body, res) { + var json + + if (err) { + return done(new passport.InternalOAuthError('Failed to fetch user profile', err)) + } + + try { + json = JSON.parse(body) + } catch (ex) { + return done(new Error('Failed to parse user profile')) + } + + let profile = parseProfile(json) + profile.provider = 'oauth2' + + done(null, profile) + }) +} + +passport.use(new OAuth2CustomStrategy({ + authorizationURL: config.oauth2.authorizationURL, + tokenURL: config.oauth2.tokenURL, + clientID: config.oauth2.clientID, + clientSecret: config.oauth2.clientSecret, + callbackURL: config.serverURL + '/auth/oauth2/callback', + userProfileURL: config.oauth2.userProfileURL +}, passportGeneralCallback)) + +oauth2Auth.get('/auth/oauth2', function (req, res, next) { + setReturnToFromReferer(req) + passport.authenticate('oauth2')(req, res, next) +}) + +// github auth callback +oauth2Auth.get('/auth/oauth2/callback', + passport.authenticate('oauth2', { + successReturnToOrRedirect: config.serverurl + '/', + failureRedirect: config.serverurl + '/' + }) +) -- cgit v1.2.3