ndn-js
Version:
A JavaScript client library for Named Data Networking
86 lines (76 loc) • 2.88 kB
JavaScript
/**
* Copyright (C) 2018-2019 Regents of the University of California.
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* @author: From ndn-cxx security https://github.com/named-data/ndn-cxx/blob/master/ndn-cxx/security/v2/trust-anchor-group.cpp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* A copy of the GNU Lesser General Public License is in the file COPYING.
*/
/** @ignore */
var fs = require('fs'); /** @ignore */
var Blob = require('../../util/blob.js').Blob; /** @ignore */
var CertificateV2 = require('./certificate-v2.js').CertificateV2;
/**
* TrustAnchorGroup represents a group of trust anchors which implement the
* CertificateContainer interface.
*
* Create a TrustAnchorGroup to use an existing container.
* @param {CertificateContainer} certificateContainer The existing certificate
* container which implements the CertificateContainer interface.
* @param {string} id The group ID.
* @constructor
*/
var TrustAnchorGroup = function TrustAnchorGroup(certificateContainer, id)
{
this.certificates_ = certificateContainer;
this.id_ = id;
// The object keys are the set of anchor name URIs, and each value is true.
this.anchorNameUris_ = {};
};
exports.TrustAnchorGroup = TrustAnchorGroup;
/**
* Get the group id given to the constructor.
* @return {string} The group id.
*/
TrustAnchorGroup.prototype.getId = function() { return this.id_; };
/**
* Get the number of certificates in the group.
* @return {number} The number of certificates.
*/
TrustAnchorGroup.prototype.size = function()
{
return Object.keys(this.anchorNameUris_).length;
};
/**
* Request a certificate refresh. The base method does nothing.
*/
TrustAnchorGroup.prototype.refresh = function() {};
/**
* Read a base-64-encoded certificate from a file.
* @param {string} filePath The certificate file path.
* @return {CertificateV2} The decoded certificate, or null if there is an
* error.
*/
TrustAnchorGroup.readCertificate = function(filePath)
{
try {
var encodedData = fs.readFileSync(filePath).toString();
var decodedData = new Buffer(encodedData, 'base64');
var result = new CertificateV2();
result.wireDecode(new Blob(decodedData, false));
return result;
} catch (ex) {
return null;
}
};