kafka权限认证 topic权限认证权限动态认证-亲测成功

kafka动态认证自定义认证安全认证-亲测成功

MacBook Linux安装Kafka

Linux解压安装Kafka

介绍

1、Kafka的权限分类

身份认证（Authentication）：对client 与服务器的连接进行身份认证，brokers和zookeeper之间的连接进行Authentication（producer 和 consumer）、其他 brokers、tools与 brokers 之间连接的认证。上一篇博文介绍了连接的身份认证。
权限控制（Authorization）：实现对于消息级别的权限控制，clients的读写操作进行Authorization：（生产/消费/group)数据权限。这节我们讲解Topic权限的控制。

kafka配置自定义权限认证

修改配置文件，在kafka主目录下，D:\kafka_2.12-3.5.0\config\server.properties

enable_db_acl = true
authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer
super.users=admin;liangdruid.name = mysql_db
druid.type = com.alibaba.druid.pool.DruidDataSource
druid.url = jdbc:mysql://127.0.0.1:3306/test?useSSL=FALSE&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
druid.username = root
druid.password = root
druid.filters = stat
druid.driverClassName = com.mysql.cj.jdbc.Driver
druid.initialSize = 5
druid.minIdle = 2
druid.maxActive = 50
druid.maxWait = 60000
druid.timeBetweenEvictionRunsMillis = 60000
druid.minEvictableIdleTimeMillis = 300000
druid.validationQuery = SELECT 'x'
druid.testWhileIdle = true
druid.testOnBorrow = false
druid.poolPreparedStatements = false
druid.maxPoolPreparedStatementPerConnectionSize = 20

其中：

enable_db_acl用来控制是否开启动态权限认证。
authorizer.class.name配置自定义权限的类

windows完整配置如下：

# 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.#
# This configuration file is intended for use in ZK-based mode, where Apache ZooKeeper is required.
# See kafka.server.KafkaConfig for additional details and defaults
############################## Server Basics ############################## The id of the broker. This must be set to a unique integer for each broker.
broker.id=0############################# Socket Server Settings ############################## The address the socket server listens on. If not configured, the host name will be equal to the value of
# java.net.InetAddress.getCanonicalHostName(), with PLAINTEXT listener name, and port 9092.
#   FORMAT:
#     listeners = listener_name://host_name:port
#   EXAMPLE:
#     listeners = PLAINTEXT://your.host.name:9092
#listeners=PLAINTEXT://:9092# Listener name, hostname and port the broker will advertise to clients.
# If not set, it uses the value for "listeners".
#advertised.listeners=PLAINTEXT://your.host.name:9092
advertised.listeners=SASL_PLAINTEXT://localhost:9092# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details
#listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL
sasl.enabled.mechanisms = PLAIN
sasl.mechanism.inter.broker.protocol = PLAIN
security.inter.broker.protocol = SASL_PLAINTEXT
listeners = SASL_PLAINTEXT://localhost:9092enable_db_acl = true
authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer
super.users=admin;liangenable_db_auth = true
listener.name.sasl_plaintext.plain.sasl.server.callback.handler.class=com.liang.kafka.auth.handler.MyPlainServerCallbackHandler
druid.name = mysql_db
druid.type = com.alibaba.druid.pool.DruidDataSource
druid.url = jdbc:mysql://127.0.0.1:3306/testdb?useSSL=FALSE&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
druid.topic.url = jdbc:mysql://127.0.0.1:3306/topicdb?useSSL=FALSE&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
druid.username = root
druid.password = root
druid.filters = stat
druid.driverClassName = com.mysql.cj.jdbc.Driver
druid.initialSize = 5
druid.minIdle = 2
druid.maxActive = 50
druid.maxWait = 60000
druid.timeBetweenEvictionRunsMillis = 60000
druid.minEvictableIdleTimeMillis = 300000
druid.validationQuery = SELECT 'x'
druid.testWhileIdle = true
druid.testOnBorrow = false
druid.poolPreparedStatements = false
druid.maxPoolPreparedStatementPerConnectionSize = 20# The number of threads that the server uses for receiving requests from the network and sending responses to the network
num.network.threads=3# The number of threads that the server uses for processing requests, which may include disk I/O
num.io.threads=8# The send buffer (SO_SNDBUF) used by the socket server
socket.send.buffer.bytes=102400# The receive buffer (SO_RCVBUF) used by the socket server
socket.receive.buffer.bytes=102400# The maximum size of a request that the socket server will accept (protection against OOM)
socket.request.max.bytes=104857600############################# Log Basics ############################## A comma separated list of directories under which to store log files
log.dirs=D:\kafka_2.12-3.5.0\kafka-logs# The default number of log partitions per topic. More partitions allow greater
# parallelism for consumption, but this will also result in more files across
# the brokers.
num.partitions=1# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
# This value is recommended to be increased for installations with data dirs located in RAID array.
num.recovery.threads.per.data.dir=1############################# Internal Topic Settings  #############################
# The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"
# For anything other than development testing, a value greater than 1 is recommended to ensure availability such as 3.
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1############################# Log Flush Policy ############################## Messages are immediately written to the filesystem but by default we only fsync() to sync
# the OS cache lazily. The following configurations control the flush of data to disk.
# There are a few important trade-offs here:
#    1. Durability: Unflushed data may be lost if you are not using replication.
#    2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.
#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to excessive seeks.
# The settings below allow one to configure the flush policy to flush data after a period of time or
# every N messages (or both). This can be done globally and overridden on a per-topic basis.# The number of messages to accept before forcing a flush of data to disk
#log.flush.interval.messages=10000# The maximum amount of time a message can sit in a log before we force a flush
#log.flush.interval.ms=1000############################# Log Retention Policy ############################## The following configurations control the disposal of log segments. The policy can
# be set to delete segments after a period of time, or after a given size has accumulated.
# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
# from the end of the log.# The minimum age of a log file to be eligible for deletion due to age
log.retention.hours=168# A size-based retention policy for logs. Segments are pruned from the log unless the remaining
# segments drop below log.retention.bytes. Functions independently of log.retention.hours.
#log.retention.bytes=1073741824# The maximum size of a log segment file. When this size is reached a new log segment will be created.
#log.segment.bytes=1073741824# The interval at which log segments are checked to see if they can be deleted according
# to the retention policies
log.retention.check.interval.ms=300000############################# Zookeeper ############################## Zookeeper connection string (see zookeeper docs for details).
# This is a comma separated host:port pairs, each corresponding to a zk
# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
# You can also append an optional chroot string to the urls to specify the
# root directory for all kafka znodes.
zookeeper.connect=localhost:2181# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=18000############################# Group Coordinator Settings ############################## The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.
# The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.
# The default value for this is 3 seconds.
# We override this to 0 here as it makes for a better out-of-the-box experience for development and testing.
# However, in production environments the default value of 3 seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances during application startup.
group.initial.rebalance.delay.ms=0

Linux下完整配置如下

# 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.# see kafka.server.KafkaConfig for additional details and defaults############################# Server Basics ############################## The id of the broker. This must be set to a unique integer for each broker.
broker.id = 999############################# Socket Server Settings ############################## The address the socket server listens on. It will get the value returned from
# java.net.InetAddress.getCanonicalHostName() if not configured.
#   FORMAT:
#     listeners = listener_name://host_name:port
#   EXAMPLE:
#     listeners = PLAINTEXT://your.host.name:9092
# listeners=PRIVATE://:9092,PUBLIC://:9093sasl.enabled.mechanisms = PLAIN
sasl.mechanism.inter.broker.protocol = PLAIN
security.inter.broker.protocol = SASL_PLAINTEXT
listeners = SASL_PLAINTEXT://:9092enable_db_acl = true
authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer
super.users=admin;liangenable_db_auth = true
listener.name.sasl_plaintext.plain.sasl.server.callback.handler.class=com.liang.kafka.auth.handler.MyPlainServerCallbackHandler
druid.name = mysql_db
druid.type = com.alibaba.druid.pool.DruidDataSource
druid.url = jdbc:mysql://192.168.1.77:3306/testdb?useSSL=FALSE&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
druid.topic.url = jdbc:mysql://192.168.1.77:3306/topicdb?useSSL=FALSE&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghai
druid.username = root
druid.password = root
druid.filters = stat
druid.driverClassName = com.mysql.cj.jdbc.Driver
druid.initialSize = 5
druid.minIdle = 2
druid.maxActive = 50
druid.maxWait = 60000
druid.timeBetweenEvictionRunsMillis = 60000
druid.minEvictableIdleTimeMillis = 300000
druid.validationQuery = SELECT 'x'
druid.testWhileIdle = true
druid.testOnBorrow = false
druid.poolPreparedStatements = false
druid.maxPoolPreparedStatementPerConnectionSize = 20# Hostname and port the broker will advertise to producers and consumers. If not set,
# it uses the value for "listeners" if configured.  Otherwise, it will use the value
# returned from java.net.InetAddress.getCanonicalHostName().
advertised.listeners = SASL_PLAINTEXT://192.168.1.77:10092# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details# The number of threads that the server uses for receiving requests from the network and sending responses to the network
num.network.threads=3# The number of threads that the server uses for processing requests, which may include disk I/O
num.io.threads=8# The send buffer (SO_SNDBUF) used by the socket server
socket.send.buffer.bytes=102400# The receive buffer (SO_RCVBUF) used by the socket server
socket.receive.buffer.bytes=102400# The maximum size of a request that the socket server will accept (protection against OOM)
socket.request.max.bytes=104857600############################# Log Basics ############################## A comma separated list of directories under which to store log files
log.dirs=/opt/kafka/kafka-logs# The default number of log partitions per topic. More partitions allow greater
# parallelism for consumption, but this will also result in more files across
# the brokers.
num.partitions=1# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
# This value is recommended to be increased for installations with data dirs located in RAID array.
num.recovery.threads.per.data.dir=1############################# Internal Topic Settings  #############################
# The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"
# For anything other than development testing, a value greater than 1 is recommended to ensure availability such as 3.
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1############################# Log Flush Policy ############################## Messages are immediately written to the filesystem but by default we only fsync() to sync
# the OS cache lazily. The following configurations control the flush of data to disk.
# There are a few important trade-offs here:
#    1. Durability: Unflushed data may be lost if you are not using replication.
#    2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.
#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to excessive seeks.
# The settings below allow one to configure the flush policy to flush data after a period of time or
# every N messages (or both). This can be done globally and overridden on a per-topic basis.# The number of messages to accept before forcing a flush of data to disk
#log.flush.interval.messages=10000# The maximum amount of time a message can sit in a log before we force a flush
#log.flush.interval.ms=1000############################# Log Retention Policy ############################## The following configurations control the disposal of log segments. The policy can
# be set to delete segments after a period of time, or after a given size has accumulated.
# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
# from the end of the log.# The minimum age of a log file to be eligible for deletion due to age
log.retention.hours=168# A size-based retention policy for logs. Segments are pruned from the log unless the remaining
# segments drop below log.retention.bytes. Functions independently of log.retention.hours.
#log.retention.bytes=1073741824# The maximum size of a log segment file. When this size is reached a new log segment will be created.
log.segment.bytes=1073741824# The interval at which log segments are checked to see if they can be deleted according
# to the retention policies
log.retention.check.interval.ms=300000############################# Zookeeper ############################## Zookeeper connection string (see zookeeper docs for details).
# This is a comma separated host:port pairs, each corresponding to a zk
# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
# You can also append an optional chroot string to the urls to specify the
# root directory for all kafka znodes.
zookeeper.connect=127.0.0.1:2181# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=18000############################# Group Coordinator Settings ############################## The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.
# The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.
# The default value for this is 3 seconds.
# We override this to 0 here as it makes for a better out-of-the-box experience for development and testing.
# However, in production environments the default value of 3 seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances during application startup.
group.initial.rebalance.delay.ms=0

自定义实现topic权限认证

用户查询，订阅或发送topic时，判断是否有此topic的权限，订阅时有没有订阅分组的权限等。

maven项目引入相关的依赖包，pom添加如下依赖包

        <dependency><groupId>org.apache.kafka</groupId><artifactId>kafka_2.13</artifactId><version>2.8.1</version></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-cache</artifactId><version>5.7.21</version></dependency>

动态topic权限认证完整代码如下：

package com.liang.kafka.auth.handler;import cn.hutool.core.collection.CollUtil;
import com.alibaba.druid.pool.DruidDataSource;
import com.liang.kafka.auth.cache.LocalCache;
import com.liang.kafka.auth.util.DataSourceUtil;
import org.apache.kafka.common.Endpoint;
import org.apache.kafka.common.acl.AclBinding;
import org.apache.kafka.common.acl.AclBindingFilter;
import org.apache.kafka.common.acl.AclOperation;
import org.apache.kafka.common.resource.PatternType;
import org.apache.kafka.common.resource.ResourcePattern;
import org.apache.kafka.common.resource.ResourceType;
import org.apache.kafka.server.authorizer.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.*;
import java.util.concurrent.CompletionStage;
import java.util.stream.Collectors;
import static com.liang.kafka.auth.constants.Constants.*;/***  kafka acl 自定义鉴权*  配置方法：在server.properties添加如下配置：*  super.users 超级用户，多个用;隔开*  authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer*  liang*/
public class MyAclAuthorizer  implements Authorizer {private static final Logger logger = LoggerFactory.getLogger(MyAclAuthorizer.class);/*** 数据源*/private DruidDataSource dataSource = null;private static final String SUPER_USERS_PROP = "super.users";/*** 超级管理员*/private Set<String> superUserSet;/*** 是否开启数据库acl验证*/private boolean enableDbAcl;@Overridepublic Map<Endpoint, ? extends CompletionStage<Void>> start(AuthorizerServerInfo authorizerServerInfo) {//logger.info("------------------start");return new HashMap<>();}/***  实现你的访问控制逻辑*/@Overridepublic List<AuthorizationResult> authorize(AuthorizableRequestContext authorizableRequestContext, List<Action> list) {return list.stream().map(action -> authorizeAction(authorizableRequestContext, action)).collect(Collectors.toList());}/*** 访问控制逻辑处理*/private AuthorizationResult authorizeAction(AuthorizableRequestContext authorizableRequestContext, Action action) {ResourcePattern resource = action.resourcePattern();if (resource.patternType() != PatternType.LITERAL) {throw new IllegalArgumentException("Only literal resources are supported. Got: " + resource.patternType());}//是否开启数据库acl验证if (!enableDbAcl) {return AuthorizationResult.ALLOWED;}String principal = authorizableRequestContext.principal().getName();AclOperation operation = action.operation();//logger.info("------resource type：{}---name:{}----operation:{}------用户名principal：{}", resource.resourceType(), resource.name(), operation.name(), principal);//1 超级用户直接通过if (superUserSet.contains(principal)) {//logger.info("-------------------超级用户直接通过");return AuthorizationResult.ALLOWED;}//2 资源类型为 Cluster 直接不通过if (resource.resourceType().equals(ResourceType.CLUSTER)) {logger.error("-------------------资源类型为Cluster直接不通过");return AuthorizationResult.DENIED;}//3 资源类型为 TransactionalId、DelegationToken 直接通过if (resource.resourceType().equals(ResourceType.TRANSACTIONAL_ID) || resource.resourceType().equals(ResourceType.DELEGATION_TOKEN)) {//logger.info("-------------------资源类型为 TransactionalId、DelegationToken 直接通过");return AuthorizationResult.ALLOWED;}String username = principal;//4 资源类型为 group 只能用默认组消费if (resource.resourceType().equals(ResourceType.GROUP)) {if (isGroup(resource.name(), username)) {return AuthorizationResult.ALLOWED;}logger.error("------------------资源类型为 group:{} 只能用默认分组消费，直接不通过", resource.name());return AuthorizationResult.DENIED;}//5 查询数据库权限配置表信息，找到则通过，否则不通过if (isAcls(resource.name(), username)) {return AuthorizationResult.ALLOWED;}return AuthorizationResult.DENIED;}/*** 判断是否为 默认分组： default_group*/private boolean isGroup(String resourceName, String username) {String defaultGroup = username + KAFKA_GROUP_SPLIT + "default_group";if (resourceName.equals(defaultGroup)) {return true;}return false;}/*** 查询数据库，判断是否有权限*/private Boolean isAcls(String resourceName, String username) {List<String> topics = LocalCache.getCache(username);if (CollUtil.isEmpty(topics)) {//从数据库查询topics = queryDb(username);if (CollUtil.isEmpty(topics)) {return Boolean.FALSE;}LocalCache.addCache(username, topics);}Boolean checkBool = checkTopic(resourceName, topics, username);return checkBool;}/*** 检查是否有topic权限, topic：username&topic*/private Boolean checkTopic(String resourceName, List<String> topics, String username) {for (String topic : topics) {if (topic == null || topic.length() == 0) {continue;}String tmp = username + KAFKA_TOPIC_SPLIT + topic;if (tmp.equals(resourceName)) {return Boolean.TRUE;}}return Boolean.FALSE;}/*** 查询数据库*/private List<String> queryDb(String username) {List<String> dbList = new ArrayList<>();String userQuery = "select t.topic\n" +" from topic t\n" +" left join mq_info i on t.mq_id = i.mq_id\n" +" where i.default_instance = 1 and t.del_status = 0 and t.username = ?";Connection conn = null;try {conn = dataSource.getConnection();PreparedStatement statement = conn.prepareStatement(userQuery);statement.setString(1, tenantId);ResultSet resultSet = statement.executeQuery();while (resultSet.next()) {dbList.add(resultSet.getString("topic"));}} catch (Exception e) {logger.error("-------------------数据库查询topic异常:{}", e);throw new RuntimeException(e);} finally {if (conn != null) {try {conn.close();} catch (SQLException e) {throw new RuntimeException(e);}}}return dbList;}/*** 创建权限*/@Overridepublic List<? extends CompletionStage<AclCreateResult>> createAcls(AuthorizableRequestContext authorizableRequestContext, List<AclBinding> list) {logger.error("------------------createAcls----没有创建权限操作");throw new UnsupportedOperationException();}/*** 删除权限*/@Overridepublic List<? extends CompletionStage<AclDeleteResult>> deleteAcls(AuthorizableRequestContext authorizableRequestContext, List<AclBindingFilter> list) {logger.error("------------------deleteAcls----没有删除权限操作");throw new UnsupportedOperationException();}@Overridepublic Iterable<AclBinding> acls(AclBindingFilter aclBindingFilter) {//logger.info("------------------acls-----获取符合查询条件的Acl操作");ArrayList aclBindings = new ArrayList();return aclBindings;}@Overridepublic void close() throws IOException {if (dataSource != null) {dataSource.close();}}@Overridepublic void configure(Map<String, ?> map) {String superUsers = (String) map.get(SUPER_USERS_PROP);//logger.info("------------------superUsers:{}", superUsers);if (superUsers == null || superUsers.isEmpty()) {superUserSet = new HashSet<>();} else {superUserSet = Arrays.stream(superUsers.split(";")).map(String::trim).collect(Collectors.toSet());}Object endbAclObject = map.get(ENABLE_DB_ACL);if (Objects.isNull(endbAclObject)) {logger.error("------------------缺少开关配置 enable_db_acl!");enableDbAcl = Boolean.FALSE;return;}enableDbAcl = TRUE.equalsIgnoreCase(endbAclObject.toString());if (!enableDbAcl) {return;}dataSource = DataSourceUtil.getIotInstance(map);}}