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node-red/red/api/auth/users.js
dceejay a9789697e7 add bcrypt as optional dependency to speed up Pi,
but not force compile on Windows.
Fix to close Issue #585
2015-03-19 11:36:48 +00:00

102 lines
2.9 KiB
JavaScript

/**
* Copyright 2015 IBM Corp.
*
* 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.
**/
var when = require("when");
var util = require("util");
var bcrypt;
try { bcrypt = require('bcrypt'); }
catch(e) { bcrypt = require('bcryptjs'); }
var users = {};
var passwords = {};
var defaultUser = null;
function authenticate(username,password) {
var user = users[username];
if (user) {
return when.promise(function(resolve,reject) {
bcrypt.compare(password, passwords[username], function(err, res) {
resolve(res?user:null);
});
});
}
return when.resolve(null);
}
function get(username) {
return when.resolve(users[username]);
}
function getDefaultUser() {
return when.resolve(null);
}
var api = {
get: get,
authenticate: authenticate,
default: getDefaultUser
}
function init(config) {
users = {};
passwords = {};
defaultUser = null;
if (config.type == "credentials") {
if (config.users) {
if (typeof config.users === "function") {
api.get = config.users;
} else {
var us = config.users;
/* istanbul ignore else */
if (!util.isArray(us)) {
us = [us];
}
for (var i=0;i<us.length;i++) {
var u = us[i];
users[u.username] = {
"username":u.username,
"permissions":u.permissions
};
passwords[u.username] = u.password;
}
}
}
if (config.authenticate && typeof config.authenticate === "function") {
api.authenticate = config.authenticate;
} else {
api.authenticate = authenticate;
}
}
if (config.default) {
if (typeof config.default === "function") {
api.default = config.default;
} else {
api.default = function() {
return when.resolve({
"anonymous": true,
"permissions":config.default.permissions
});
}
}
} else {
api.default = getDefaultUser;
}
}
module.exports = {
init: init,
get: function(username) { return api.get(username) },
authenticate: function(username,password) { return api.authenticate(username,password) },
default: function() { return api.default(); }
};