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71 lines
2.1 KiB
JavaScript
71 lines
2.1 KiB
JavaScript
2 years ago
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/*
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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 { AuthProvider, Authenticator } = require('./provider');
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const { PlainTextAuthenticator } = require('./plain-text-auth-provider');
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const errors = require('../errors');
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const dseAuthenticator = 'com.datastax.bdp.cassandra.auth.DseAuthenticator';
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/**
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* Internal authentication provider that is used when no provider has been set by the user.
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* @ignore
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*/
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class NoAuthProvider extends AuthProvider {
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newAuthenticator(endpoint, name) {
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if (name === dseAuthenticator) {
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// Try to use transitional mode
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return new TransitionalModePlainTextAuthenticator();
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}
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// Use an authenticator that doesn't allow auth flow
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return new NoAuthAuthenticator(endpoint);
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}
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}
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/**
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* An authenticator throws an error when authentication flow is started.
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* @ignore
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*/
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class NoAuthAuthenticator extends Authenticator {
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constructor(endpoint) {
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super();
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this.endpoint = endpoint;
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}
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initialResponse(callback) {
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callback(new errors.AuthenticationError(
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`Host ${this.endpoint} requires authentication, but no authenticator found in the options`));
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}
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}
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/**
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* Authenticator that accounts for DSE authentication configured with transitional mode: normal.
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*
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* In this situation, the client is allowed to connect without authentication, but DSE
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* would still send an AUTHENTICATE response. This Authenticator handles this situation
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* by sending back a dummy credential.
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*/
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class TransitionalModePlainTextAuthenticator extends PlainTextAuthenticator {
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constructor() {
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super('', '');
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}
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}
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module.exports = NoAuthProvider;
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