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node-red/red/api/auth/permissions.js
2015-02-05 13:00:56 +00:00

51 lines
1.3 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 util = require('util');
var readRE = /^((.+)\.)?read$/
var writeRE = /^((.+)\.)?write$/
function needsPermission(perm) {
return function(req,res,next) {
if (!req.user) {
return next();
}
if (hasPermission(req.user,perm)) {
return next();
}
return res.send(401);
}
}
function hasPermission(user,permission) {
if (!user.permissions) {
return false;
}
if (user.permissions == "*") {
return true;
}
if (user.permissions == "read") {
return readRE.test(permission);
}
}
module.exports = {
hasPermission: hasPermission,
needsPermission: needsPermission,
}