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arangodb/js/server/modules/@arangodb/foxx/sessions/storages/jwt.js

69 lines
2.0 KiB
JavaScript

'use strict';
// //////////////////////////////////////////////////////////////////////////////
// / DISCLAIMER
// /
// / Copyright 2015-2016 ArangoDB GmbH, Cologne, Germany
// /
// / Licensed under the Apache License, Version 2.0 (the "License")
// / you may not use this file except in compliance with the License.
// / You may obtain a copy of the License at
// /
// / http://www.apache.org/licenses/LICENSE-2.0
// /
// / Unless required by applicable law or agreed to in writing, software
// / distributed under the License is distributed on an "AS IS" BASIS,
// / WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// / See the License for the specific language governing permissions and
// / limitations under the License.
// /
// / Copyright holder is ArangoDB GmbH, Cologne, Germany
// /
// / @author Alan Plum
// //////////////////////////////////////////////////////////////////////////////
const assert = require('assert');
const crypto = require('@arangodb/crypto');
module.exports = function jwtStorage (cfg) {
if (typeof cfg === 'string') {
cfg = {secret: cfg};
}
if (!cfg) {
cfg = {};
}
assert(cfg.algorithm === 'none' || cfg.secret, `Must pass a JWT secret for "${cfg.algorithm}" algorithm`);
assert(cfg.algorithm !== 'none' || !cfg.secret, 'Must NOT pass a JWT secret for "none" algorithm');
const algorithm = cfg.algorithm || 'HS512';
const ttl = (cfg.ttl || 60 * 60) * 1000;
return {
fromClient(sid) {
const token = crypto.jwtDecode(cfg.secret, sid, cfg.verify === false);
if (token.exp < Date.now()) {
return null;
}
return {
uid: token.uid,
created: token.iat,
data: token.payload
};
},
forClient(session) {
const token = {
uid: session.uid,
iat: session.created,
payload: session.data,
exp: Date.now() + ttl
};
return crypto.jwtEncode(cfg.secret, token, algorithm);
},
new() {
return {
uid: null,
created: Date.now(),
data: null
};
}
};
};