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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| var jwt = require('jsonwebtoken'); | ||
| var jwksClient = require('jwks-rsa'); | ||
| var Promise = require('bluebird'); | ||
|
|
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| var ArgumentError = require('rest-facade').ArgumentError; | ||
|
|
||
| /** | ||
| * @class | ||
| * Abstracts the `oauth.create` method with additional id_token validation | ||
| * @constructor | ||
| * @memberOf module:auth | ||
| * | ||
| * @param {Object} oauth An instance of @type {OAuthAuthenticator} | ||
| * @param {Object} options Authenticator options. | ||
| * @param {String} options.domain AuthenticationClient server domain | ||
| * @param {String} [options.clientId] Default client ID. | ||
| * @param {String} [options.clientSecret] Default client Secret. | ||
| * @param {String} [options.supportedAlgorithms] Algorithms that your application expects to receive | ||
| */ | ||
| var OAUthWithIDTokenValidation = function(oauth, options) { | ||
| if (!oauth) { | ||
| throw new ArgumentError('Missing OAuthAuthenticator param'); | ||
| } | ||
|
|
||
| if (!options) { | ||
| throw new ArgumentError('Missing authenticator options'); | ||
| } | ||
|
|
||
| if (typeof options !== 'object') { | ||
| throw new ArgumentError('The authenticator options must be an object'); | ||
| } | ||
|
|
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| this.oauth = oauth; | ||
| this.clientId = options.clientId; | ||
| this.clientSecret = options.clientSecret; | ||
| this.domain = options.domain; | ||
| this.supportedAlgorithms = options.supportedAlgorithms || ['HS256', 'RS256']; | ||
| this._jwksClient = jwksClient({ | ||
| jwksUri: 'https://' + options.domain + '/.well-known/jwks.json' | ||
| }); | ||
| }; | ||
|
|
||
| /** | ||
| * Creates an oauth request and validates the id_token (if any) | ||
| * | ||
| * @method create | ||
| * @memberOf module:auth.OAuthWithIDTokenValidation.prototype | ||
| * | ||
| * @param {Object} params OAuth parameters that are passed through | ||
| * @param {Object} data Custom parameters sent to the OAuth endpoint | ||
| * @param {Function} [callback] Callback function | ||
| * | ||
| * @return {Promise|undefined} | ||
| */ | ||
| OAUthWithIDTokenValidation.prototype.create = function(params, data, cb) { | ||
| const createAndValidate = this.oauth.create(params, data).then(r => { | ||
| var _this = this; | ||
| if (r.id_token) { | ||
| function getKey(header, callback) { | ||
| if (header.alg === 'HS256') { | ||
| return callback(null, Buffer.from(_this.clientSecret, 'base64')); | ||
| } | ||
| _this._jwksClient.getSigningKey(header.kid, function(err, key) { | ||
| if (err) { | ||
| return callback(err); | ||
| } | ||
| var signingKey = key.publicKey || key.rsaPublicKey; | ||
| return callback(null, signingKey); | ||
| }); | ||
| } | ||
| return new Promise((res, rej) => { | ||
| jwt.verify( | ||
| r.id_token, | ||
| getKey, | ||
| { | ||
| algorithms: this.supportedAlgorithms, | ||
| audience: this.clientId, | ||
| issuer: 'https://' + this.domain + '/' | ||
| }, | ||
| function(err, payload) { | ||
| if (err) { | ||
| return rej(err); | ||
| } | ||
| return res(r); | ||
| } | ||
| ); | ||
| }); | ||
| } | ||
| return r; | ||
| }); | ||
| if (!cb) { | ||
| return createAndValidate; | ||
| } | ||
| createAndValidate.then(r => cb(null, r)).catch(e => cb(e)); | ||
| }; | ||
|
|
||
| module.exports = OAUthWithIDTokenValidation; |
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