001/* 002 * Copyright (C) 2022-present The Prometheus jmx_exporter Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package io.prometheus.jmx.common.http.authenticator; 018 019import com.sun.net.httpserver.BasicAuthenticator; 020import io.prometheus.jmx.common.util.Precondition; 021 022/** Class to implement a username / plaintext password BasicAuthenticator */ 023public class PlaintextAuthenticator extends BasicAuthenticator { 024 025 private final String username; 026 private final String password; 027 028 /** 029 * Constructor 030 * 031 * @param realm realm 032 * @param username username 033 * @param password password 034 */ 035 public PlaintextAuthenticator(String realm, String username, String password) { 036 super(realm); 037 038 Precondition.notNullOrEmpty(username); 039 Precondition.notNullOrEmpty(password); 040 041 this.username = username; 042 this.password = password; 043 } 044 045 /** 046 * called for each incoming request to verify the given name and password in the context of this 047 * Authenticator's realm. Any caching of credentials must be done by the implementation of this 048 * method 049 * 050 * @param username the username from the request 051 * @param password the password from the request 052 * @return <code>true</code> if the credentials are valid, <code>false</code> otherwise. 053 */ 054 @Override 055 public boolean checkCredentials(String username, String password) { 056 return this.username.equals(username) && this.password.equals(password); 057 } 058}