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76 lines
2.1 KiB
JavaScript
76 lines
2.1 KiB
JavaScript
/*
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* Copyright DataStax, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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const util = require('util');
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const { Authenticator } = require('./provider');
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const dseAuthenticatorName = 'com.datastax.bdp.cassandra.auth.DseAuthenticator';
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/**
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* Base class for Authenticator implementations that want to make use of
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* the authentication scheme negotiation in the DseAuthenticator
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* @param {String} authenticatorName
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* @extends Authenticator
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* @constructor
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* @ignore
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*/
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function BaseDseAuthenticator(authenticatorName) {
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this.authenticatorName = authenticatorName;
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}
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util.inherits(BaseDseAuthenticator, Authenticator);
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/**
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* Return a Buffer containing the required SASL mechanism.
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* @abstract
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* @returns {Buffer}
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*/
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BaseDseAuthenticator.prototype.getMechanism = function () {
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throw new Error('Not implemented');
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};
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/**
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* Return a byte array containing the expected successful server challenge.
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* @abstract
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* @returns {Buffer}
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*/
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BaseDseAuthenticator.prototype.getInitialServerChallenge = function () {
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throw new Error('Not implemented');
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};
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/**
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* @param {Function} callback
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* @override
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*/
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BaseDseAuthenticator.prototype.initialResponse = function (callback) {
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if (!this._isDseAuthenticator()) {
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//fallback
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return this.evaluateChallenge(this.getInitialServerChallenge(), callback);
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}
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//send the mechanism as a first auth message
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callback(null, this.getMechanism());
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};
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/**
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* Determines if the name of the authenticator matches DSE 5+
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* @protected
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* @ignore
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*/
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BaseDseAuthenticator.prototype._isDseAuthenticator = function () {
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return this.authenticatorName === dseAuthenticatorName;
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};
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module.exports = BaseDseAuthenticator; |