kafka UserScramCredentialUpsertion 源码
kafka UserScramCredentialUpsertion 代码
文件路径:/clients/src/main/java/org/apache/kafka/clients/admin/UserScramCredentialUpsertion.java
/*
* 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.kafka.clients.admin;
import org.apache.kafka.common.security.scram.internals.ScramFormatter;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;
import java.util.Objects;
/**
* A request to update/insert a SASL/SCRAM credential for a user.
*
* @see <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-554%3A+Add+Broker-side+SCRAM+Config+API">KIP-554: Add Broker-side SCRAM Config API</a>
*/
public class UserScramCredentialUpsertion extends UserScramCredentialAlteration {
private final ScramCredentialInfo info;
private final byte[] salt;
private final byte[] password;
/**
* Constructor that generates a random salt
*
* @param user the user for which the credential is to be updated/inserted
* @param credentialInfo the mechanism and iterations to be used
* @param password the password
*/
public UserScramCredentialUpsertion(String user, ScramCredentialInfo credentialInfo, String password) {
this(user, credentialInfo, password.getBytes(StandardCharsets.UTF_8));
}
/**
* Constructor that generates a random salt
*
* @param user the user for which the credential is to be updated/inserted
* @param credentialInfo the mechanism and iterations to be used
* @param password the password
*/
public UserScramCredentialUpsertion(String user, ScramCredentialInfo credentialInfo, byte[] password) {
this(user, credentialInfo, password, generateRandomSalt());
}
/**
* Constructor that accepts an explicit salt
*
* @param user the user for which the credential is to be updated/inserted
* @param credentialInfo the mechanism and iterations to be used
* @param password the password
* @param salt the salt to be used
*/
public UserScramCredentialUpsertion(String user, ScramCredentialInfo credentialInfo, byte[] password, byte[] salt) {
super(Objects.requireNonNull(user));
this.info = Objects.requireNonNull(credentialInfo);
this.password = Objects.requireNonNull(password);
this.salt = Objects.requireNonNull(salt);
}
/**
*
* @return the mechanism and iterations
*/
public ScramCredentialInfo credentialInfo() {
return info;
}
/**
*
* @return the salt
*/
public byte[] salt() {
return salt;
}
/**
*
* @return the password
*/
public byte[] password() {
return password;
}
private static byte[] generateRandomSalt() {
return ScramFormatter.secureRandomBytes(new SecureRandom());
}
}
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