kafka AuthenticateCallbackHandler 源码
kafka AuthenticateCallbackHandler 代码
文件路径:/clients/src/main/java/org/apache/kafka/common/security/auth/AuthenticateCallbackHandler.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.common.security.auth;
import java.util.List;
import java.util.Map;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.login.AppConfigurationEntry;
/*
* Callback handler for SASL-based authentication
*/
public interface AuthenticateCallbackHandler extends CallbackHandler {
/**
* Configures this callback handler for the specified SASL mechanism.
*
* @param configs Key-value pairs containing the parsed configuration options of
* the client or broker. Note that these are the Kafka configuration options
* and not the JAAS configuration options. JAAS config options may be obtained
* from `jaasConfigEntries` for callbacks which obtain some configs from the
* JAAS configuration. For configs that may be specified as both Kafka config
* as well as JAAS config (e.g. sasl.kerberos.service.name), the configuration
* is treated as invalid if conflicting values are provided.
* @param saslMechanism Negotiated SASL mechanism. For clients, this is the SASL
* mechanism configured for the client. For brokers, this is the mechanism
* negotiated with the client and is one of the mechanisms enabled on the broker.
* @param jaasConfigEntries JAAS configuration entries from the JAAS login context.
* This list contains a single entry for clients and may contain more than
* one entry for brokers if multiple mechanisms are enabled on a listener using
* static JAAS configuration where there is no mapping between mechanisms and
* login module entries. In this case, callback handlers can use the login module in
* `jaasConfigEntries` to identify the entry corresponding to `saslMechanism`.
* Alternatively, dynamic JAAS configuration option
* {@link org.apache.kafka.common.config.SaslConfigs#SASL_JAAS_CONFIG} may be
* configured on brokers with listener and mechanism prefix, in which case
* only the configuration entry corresponding to `saslMechanism` will be provided
* in `jaasConfigEntries`.
*/
void configure(Map<String, ?> configs, String saslMechanism, List<AppConfigurationEntry> jaasConfigEntries);
/**
* Closes this instance.
*/
void close();
}
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