casbin
Version:
An authorization library that supports access control models like ACL, RBAC, ABAC in Node.JS
60 lines (59 loc) • 2.23 kB
JavaScript
;
// Copyright 2017 The casbin Authors. All Rights Reserved.
//
// 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.
Object.defineProperty(exports, "__esModule", { value: true });
const rbac = require("../rbac");
const _ = require("lodash");
const log_1 = require("../log");
// Assertion represents an expression in a section of the model.
// For example: r = sub, obj, act
class Assertion {
/**
* constructor is the constructor for Assertion.
*/
constructor() {
this.key = '';
this.value = '';
this.tokens = [];
this.policy = [];
this.rm = new rbac.DefaultRoleManager(0);
}
buildRoleLinks(rm) {
this.rm = rm;
const count = _.words(this.value, /_/g).length;
for (const rule of this.policy) {
if (count < 2) {
throw new Error('the number of "_" in role definition should be at least 2');
}
if (rule.length < count) {
throw new Error('grouping policy elements do not meet role definition');
}
if (count === 2) {
// error intentionally ignored
this.rm.addLink(rule[0], rule[1]);
}
else if (count === 3) {
// error intentionally ignored
this.rm.addLink(rule[0], rule[1], rule[2]);
}
else if (count === 4) {
// error intentionally ignored
this.rm.addLink(rule[0], rule[1], rule[2], rule[3]);
}
}
log_1.logPrint(`Role links for: ${this.key}`);
this.rm.printRoles();
}
}
exports.Assertion = Assertion;