/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.tomcat.websocket;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.Map;
/**
* Authenticator supporting the BASIC authentication method.
*/
public class BasicAuthenticator extends Authenticator {
public static final String schemeName = "basic";
public static final String charsetparam = "charset";
@Override
public String getAuthorization(String requestUri, String authenticateHeader, String userName, String userPassword,
String userRealm) throws AuthenticationException {
validateUsername(userName);
validatePassword(userPassword);
Map<String,String> parameterMap = parseAuthenticateHeader(authenticateHeader);
String realm = parameterMap.get("realm");
validateRealm(userRealm, realm);
String userPass = userName + ":" + userPassword;
Charset charset;
if (parameterMap.get(charsetparam) != null && parameterMap.get(charsetparam).equalsIgnoreCase("UTF-8")) {
charset = StandardCharsets.UTF_8;
} else {
charset = StandardCharsets.ISO_8859_1;
}
String base64 = Base64.getEncoder().encodeToString(userPass.getBytes(charset));
return " Basic " + base64;
}
@Override
public String getSchemeName() {
return schemeName;
}
}