kafka权限认证 topic权限认证 权限动态认证-亲测成功

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;liang

druid.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:9092

enable_db_acl = true
authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer
super.users=admin;liang

enable_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://:9093

sasl.enabled.mechanisms = PLAIN
sasl.mechanism.inter.broker.protocol = PLAIN
security.inter.broker.protocol = SASL_PLAINTEXT
listeners = SASL_PLAINTEXT://:9092

enable_db_acl = true
authorizer.class.name=com.liang.kafka.auth.handler.MyAclAuthorizer
super.users=admin;liang

enable_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：

packagecom.liang.kafka.auth.handler;importcn.hutool.core.collection.CollUtil;importcom.alibaba.druid.pool.DruidDataSource;importcom.liang.kafka.auth.cache.LocalCache;importcom.liang.kafka.auth.util.DataSourceUtil;importorg.apache.kafka.common.Endpoint;importorg.apache.kafka.common.acl.AclBinding;importorg.apache.kafka.common.acl.AclBindingFilter;importorg.apache.kafka.common.acl.AclOperation;importorg.apache.kafka.common.resource.PatternType;importorg.apache.kafka.common.resource.ResourcePattern;importorg.apache.kafka.common.resource.ResourceType;importorg.apache.kafka.server.authorizer.*;importorg.slf4j.Logger;importorg.slf4j.LoggerFactory;importjava.io.IOException;importjava.sql.Connection;importjava.sql.PreparedStatement;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.util.*;importjava.util.concurrent.CompletionStage;importjava.util.stream.Collectors;importstaticcom.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
 */publicclassMyAclAuthorizerimplementsAuthorizer{privatestaticfinalLogger logger =LoggerFactory.getLogger(MyAclAuthorizer.class);/**
     * 数据源
     */privateDruidDataSource dataSource =null;privatestaticfinalStringSUPER_USERS_PROP="super.users";/**
     * 超级管理员
     */privateSet<String> superUserSet;/**
     * 是否开启数据库acl验证
     */privateboolean enableDbAcl;@OverridepublicMap<Endpoint,?extendsCompletionStage<Void>>start(AuthorizerServerInfo authorizerServerInfo){//logger.info("------------------start");returnnewHashMap<>();}/**
     *  实现你的访问控制逻辑
     */@OverridepublicList<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
     */privateAuthorizationResultauthorizeAction(AuthorizableRequestContext authorizableRequestContext,Action action){ResourcePattern resource = action.resourcePattern();if(resource.patternType()!=PatternType.LITERAL){thrownewIllegalArgumentException("Only literal resources are supported. Got: "+ resource.patternType());}//是否开启数据库acl验证if(!enableDbAcl){returnAuthorizationResult.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");returnAuthorizationResult.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");returnAuthorizationResult.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");returnAuthorizationResult.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)){returnAuthorizationResult.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());returnAuthorizationResult.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)){returnAuthorizationResult.ALLOWED;}returnAuthorizationResult.DENIED;}/**
     * 判断是否为 默认分组： default_group
     */privatebooleanisGroup(String resourceName,String username){String defaultGroup = username +KAFKA_GROUP_SPLIT+"default_group";if(resourceName.equals(defaultGroup)){returntrue;}returnfalse;}/**
     * 查询数据库，判断是否有权限
     */privateBooleanisAcls(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)){returnBoolean.FALSE;}LocalCache.addCache(username, topics);}Boolean checkBool =checkTopic(resourceName, topics, username);return checkBool;}/**
     * 检查是否有topic权限, topic：username&topic
     */privateBooleancheckTopic(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)){returnBoolean.TRUE;}}returnBoolean.FALSE;}/**
     * 查询数据库
     */privateList<String>queryDb(String username){List<String> dbList =newArrayList<>();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);thrownewRuntimeException(e);}finally{if(conn !=null){try{
                    conn.close();}catch(SQLException e){thrownewRuntimeException(e);}}}return dbList;}/**
     * 创建权限
     */@OverridepublicList<?extendsCompletionStage<AclCreateResult>>createAcls(AuthorizableRequestContext authorizableRequestContext,List<AclBinding> list){
        logger.error("------------------createAcls----没有创建权限操作");thrownewUnsupportedOperationException();}/**
     * 删除权限
     */@OverridepublicList<?extendsCompletionStage<AclDeleteResult>>deleteAcls(AuthorizableRequestContext authorizableRequestContext,List<AclBindingFilter> list){
        logger.error("------------------deleteAcls----没有删除权限操作");thrownewUnsupportedOperationException();}@OverridepublicIterable<AclBinding>acls(AclBindingFilter aclBindingFilter){//logger.info("------------------acls-----获取符合查询条件的Acl操作");ArrayList aclBindings =newArrayList();return aclBindings;}@Overridepublicvoidclose()throwsIOException{if(dataSource !=null){
            dataSource.close();}}@Overridepublicvoidconfigure(Map<String,?> map){String superUsers =(String) map.get(SUPER_USERS_PROP);//logger.info("------------------superUsers:{}", superUsers);if(superUsers ==null|| superUsers.isEmpty()){
            superUserSet =newHashSet<>();}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);}}

编译打包运行

编译打成jar包之后，需要放到libs上当，D:\kafka_2.12-3.5.0\libs\xxx。
注意：还有代码中使用了第三方相关依赖包也需要一起放入。

重启kafka后生效，观察日志，可以看到用户连接后，发送和订阅就会去查询数据库，查询到用户没有权限时，会提示报错如下。