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[hotfix] Make SecurityUtils.SecurityConfiguration a toplevel class
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154 changes: 154 additions & 0 deletions
154
flink-runtime/src/main/java/org/apache/flink/runtime/security/SecurityConfiguration.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.flink.runtime.security; | ||
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| import org.apache.flink.configuration.Configuration; | ||
| import org.apache.flink.configuration.IllegalConfigurationException; | ||
| import org.apache.flink.configuration.SecurityOptions; | ||
| import org.apache.flink.runtime.security.modules.HadoopModuleFactory; | ||
| import org.apache.flink.runtime.security.modules.JaasModuleFactory; | ||
| import org.apache.flink.runtime.security.modules.SecurityModuleFactory; | ||
| import org.apache.flink.runtime.security.modules.ZookeeperModuleFactory; | ||
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| import org.apache.commons.lang3.StringUtils; | ||
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| import java.io.File; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
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| import static org.apache.flink.util.Preconditions.checkNotNull; | ||
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| /** | ||
| * The global security configuration. | ||
| * | ||
| * <p>See {@link SecurityOptions} for corresponding configuration options. | ||
| */ | ||
| public class SecurityConfiguration { | ||
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| private static final List<SecurityModuleFactory> DEFAULT_MODULES = Collections.unmodifiableList( | ||
| Arrays.asList(new HadoopModuleFactory(), new JaasModuleFactory(), new ZookeeperModuleFactory())); | ||
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| private final List<SecurityModuleFactory> securityModuleFactories; | ||
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| private final Configuration flinkConfig; | ||
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| private final boolean isZkSaslDisable; | ||
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| private final boolean useTicketCache; | ||
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| private final String keytab; | ||
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| private final String principal; | ||
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| private final List<String> loginContextNames; | ||
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| private final String zkServiceName; | ||
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| private final String zkLoginContextName; | ||
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| /** | ||
| * Create a security configuration from the global configuration. | ||
| * @param flinkConf the Flink global configuration. | ||
| */ | ||
| public SecurityConfiguration(Configuration flinkConf) { | ||
| this(flinkConf, DEFAULT_MODULES); | ||
| } | ||
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| /** | ||
| * Create a security configuration from the global configuration. | ||
| * @param flinkConf the Flink global configuration. | ||
| * @param securityModuleFactories the security modules to apply. | ||
| */ | ||
| public SecurityConfiguration(Configuration flinkConf, | ||
| List<SecurityModuleFactory> securityModuleFactories) { | ||
| this.isZkSaslDisable = flinkConf.getBoolean(SecurityOptions.ZOOKEEPER_SASL_DISABLE); | ||
| this.keytab = flinkConf.getString(SecurityOptions.KERBEROS_LOGIN_KEYTAB); | ||
| this.principal = flinkConf.getString(SecurityOptions.KERBEROS_LOGIN_PRINCIPAL); | ||
| this.useTicketCache = flinkConf.getBoolean(SecurityOptions.KERBEROS_LOGIN_USETICKETCACHE); | ||
| this.loginContextNames = parseList(flinkConf.getString(SecurityOptions.KERBEROS_LOGIN_CONTEXTS)); | ||
| this.zkServiceName = flinkConf.getString(SecurityOptions.ZOOKEEPER_SASL_SERVICE_NAME); | ||
| this.zkLoginContextName = flinkConf.getString(SecurityOptions.ZOOKEEPER_SASL_LOGIN_CONTEXT_NAME); | ||
| this.securityModuleFactories = Collections.unmodifiableList(securityModuleFactories); | ||
| this.flinkConfig = checkNotNull(flinkConf); | ||
| validate(); | ||
| } | ||
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| public boolean isZkSaslDisable() { | ||
| return isZkSaslDisable; | ||
| } | ||
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| public String getKeytab() { | ||
| return keytab; | ||
| } | ||
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| public String getPrincipal() { | ||
| return principal; | ||
| } | ||
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| public boolean useTicketCache() { | ||
| return useTicketCache; | ||
| } | ||
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| public Configuration getFlinkConfig() { | ||
| return flinkConfig; | ||
| } | ||
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| public List<SecurityModuleFactory> getSecurityModuleFactories() { | ||
| return securityModuleFactories; | ||
| } | ||
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| public List<String> getLoginContextNames() { | ||
| return loginContextNames; | ||
| } | ||
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| public String getZooKeeperServiceName() { | ||
| return zkServiceName; | ||
| } | ||
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| public String getZooKeeperLoginContextName() { | ||
| return zkLoginContextName; | ||
| } | ||
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| private void validate() { | ||
| if (!StringUtils.isBlank(keytab)) { | ||
| // principal is required | ||
| if (StringUtils.isBlank(principal)) { | ||
| throw new IllegalConfigurationException("Kerberos login configuration is invalid; keytab requires a principal."); | ||
| } | ||
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| // check the keytab is readable | ||
| File keytabFile = new File(keytab); | ||
| if (!keytabFile.exists() || !keytabFile.isFile() || !keytabFile.canRead()) { | ||
| throw new IllegalConfigurationException("Kerberos login configuration is invalid; keytab is unreadable"); | ||
| } | ||
| } | ||
| } | ||
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| private static List<String> parseList(String value) { | ||
| if (value == null || value.isEmpty()) { | ||
| return Collections.emptyList(); | ||
| } | ||
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| return Arrays.asList(value | ||
| .trim() | ||
| .replaceAll("(\\s*,+\\s*)+", ",") | ||
| .split(",")); | ||
| } | ||
| } |
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