org.apache.pulsar.client.api.AuthenticationDataProvider Maven / Gradle / Ivy
/**
* 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.pulsar.client.api;
import static java.nio.charset.StandardCharsets.UTF_8;
import java.io.InputStream;
import java.io.Serializable;
import java.security.PrivateKey;
import java.security.cert.Certificate;
import java.util.Map;
import java.util.Set;
import javax.naming.AuthenticationException;
import org.apache.pulsar.common.api.AuthData;
import org.apache.pulsar.common.classification.InterfaceAudience;
import org.apache.pulsar.common.classification.InterfaceStability;
/**
* Interface for accessing data which are used in variety of authentication schemes on client side.
*/
@InterfaceAudience.LimitedPrivate
@InterfaceStability.Stable
public interface AuthenticationDataProvider extends Serializable {
/*
* TLS
*/
/**
* Check if data for TLS are available.
*
* @return true if this authentication data contain data for TLS
*/
default boolean hasDataForTls() {
return false;
}
/**
*
* @return a client certificate chain, or null if the data are not available
*/
default Certificate[] getTlsCertificates() {
return null;
}
/**
* @return a client certificate file path
*/
default String getTlsCerificateFilePath() {
return null;
}
/**
*
* @return a private key for the client certificate, or null if the data are not available
*/
default PrivateKey getTlsPrivateKey() {
return null;
}
/**
*
* @return a private key file path
*/
default String getTlsPrivateKeyFilePath() {
return null;
}
/**
*
* @return an input-stream of the trust store, or null if the trust-store provided at
* {@link ClientConfigurationData#getTlsTrustStorePath()}
*/
default InputStream getTlsTrustStoreStream() {
return null;
}
/**
* Used for TLS authentication with keystore type.
*
* @return a KeyStoreParams for the client certificate chain, or null if the data are not available
*/
default KeyStoreParams getTlsKeyStoreParams() {
return null;
}
/*
* HTTP
*/
/**
* Check if data for HTTP are available.
*
* @return true if this authentication data contain data for HTTP
*/
default boolean hasDataForHttp() {
return false;
}
/**
*
* @return a authentication scheme, or {@code null} if the request will not be authenticated.
*/
default String getHttpAuthType() {
return null;
}
/**
*
* @return an enumeration of all the header names
*/
default Set> getHttpHeaders() throws Exception {
return null;
}
/*
* Command
*/
/**
* Check if data from Pulsar protocol are available.
*
* @return true if this authentication data contain data from Pulsar protocol
*/
default boolean hasDataFromCommand() {
return false;
}
/**
*
* @return authentication data which will be stored in a command
*/
default String getCommandData() {
return null;
}
/**
* For mutual authentication, This method use passed in `data` to evaluate and challenge,
* then returns null if authentication has completed;
* returns authenticated data back to server side, if authentication has not completed.
*
* Mainly used for mutual authentication like sasl.
*/
default AuthData authenticate(AuthData data) throws AuthenticationException {
byte[] bytes = (hasDataFromCommand() ? this.getCommandData() : "").getBytes(UTF_8);
return AuthData.of(bytes);
}
}