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...-auth/src/main/java/org/apache/hadoop/security/authentication/util/JaasConfiguration.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,77 @@ | ||
| /** | ||
| * Licensed 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 accompanying LICENSE file. | ||
| */ | ||
| package org.apache.hadoop.security.authentication.util; | ||
|
|
||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import javax.security.auth.login.AppConfigurationEntry; | ||
| import javax.security.auth.login.Configuration; | ||
|
|
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|
|
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| /** | ||
| * Creates a programmatic version of a jaas.conf file. This can be used | ||
| * instead of writing a jaas.conf file and setting the system property, | ||
| * "java.security.auth.login.config", to point to that file. It is meant to be | ||
| * used for connecting to ZooKeeper. | ||
| */ | ||
| public class JaasConfiguration extends Configuration { | ||
|
|
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| private final javax.security.auth.login.Configuration baseConfig = | ||
| javax.security.auth.login.Configuration.getConfiguration(); | ||
| private final AppConfigurationEntry[] entry; | ||
| private final String entryName; | ||
|
|
||
| /** | ||
| * Add an entry to the jaas configuration with the passed in name, | ||
| * principal, and keytab. The other necessary options will be set for you. | ||
| * | ||
| * @param entryName The name of the entry (e.g. "Client") | ||
| * @param principal The principal of the user | ||
| * @param keytab The location of the keytab | ||
| */ | ||
| public JaasConfiguration(String entryName, String principal, String keytab) { | ||
| this.entryName = entryName; | ||
| Map<String, String> options = new HashMap<>(); | ||
| options.put("keyTab", keytab); | ||
| options.put("principal", principal); | ||
| options.put("useKeyTab", "true"); | ||
| options.put("storeKey", "true"); | ||
| options.put("useTicketCache", "false"); | ||
| options.put("refreshKrb5Config", "true"); | ||
| String jaasEnvVar = System.getenv("HADOOP_JAAS_DEBUG"); | ||
| if ("true".equalsIgnoreCase(jaasEnvVar)) { | ||
| options.put("debug", "true"); | ||
| } | ||
| entry = new AppConfigurationEntry[]{ | ||
| new AppConfigurationEntry(getKrb5LoginModuleName(), | ||
| AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, | ||
| options)}; | ||
| } | ||
|
|
||
| @Override | ||
| public AppConfigurationEntry[] getAppConfigurationEntry(String name) { | ||
| return (entryName.equals(name)) ? entry : ((baseConfig != null) | ||
| ? baseConfig.getAppConfigurationEntry(name) : null); | ||
| } | ||
|
|
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| private String getKrb5LoginModuleName() { | ||
| String krb5LoginModuleName; | ||
| if (System.getProperty("java.vendor").contains("IBM")) { | ||
| krb5LoginModuleName = "com.ibm.security.auth.module.Krb5LoginModule"; | ||
| } else { | ||
| krb5LoginModuleName = "com.sun.security.auth.module.Krb5LoginModule"; | ||
| } | ||
| return krb5LoginModuleName; | ||
| } | ||
| } |
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