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@ -4,8 +4,13 @@ import com.fr.io.base.provider.impl.ConfigRepositoryFactory;
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import com.fr.io.context.info.RepositoryProfile; |
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import com.fr.io.repository.ResourceRepository; |
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import com.fr.log.FineLoggerFactory; |
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import com.fr.plugin.context.PluginContexts; |
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import com.fr.plugin.context.PluginMarker; |
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import com.fr.plugin.hdfs.repository.HDFSFactoryProvider; |
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import com.fr.stable.StableUtils; |
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import com.fr.stable.StringUtils; |
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import com.fr.stable.project.ProjectConstants; |
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import com.fr.workspace.WorkContext; |
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import org.apache.hadoop.conf.Configuration; |
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import org.apache.hadoop.fs.FileSystem; |
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import org.apache.hadoop.fs.Path; |
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@ -15,13 +20,14 @@ import org.apache.hadoop.security.SecurityUtil;
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import org.apache.hadoop.security.UserGroupInformation; |
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import java.io.IOException; |
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import java.lang.reflect.Method; |
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import java.net.URI; |
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/** |
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* Created by rinoux on 2018/8/10. |
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*/ |
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public class HDFSRepositoryFactory extends ConfigRepositoryFactory<HDFSConfig> { |
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public static final String IDENTITY = "HDFS"; |
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static final String IDENTITY = "HDFS"; |
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private static final String HDFS_SCHEMA = "hdfs://"; |
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private static final String DEFAULT_HOST = "localhost"; |
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@ -81,15 +87,24 @@ public class HDFSRepositoryFactory extends ConfigRepositoryFactory<HDFSConfig> {
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String principal = config.getPrincipal(); |
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String krb5Conf = config.getKrbConf(); |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] Host:{}", host); |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] Port:{}", port); |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] Principal:{}", principal); |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] KeyTab:{}", config.getKeyTab()); |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] krb5.conf:{}", krb5Conf); |
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//开启了kerberos验证
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boolean kerberos = kerberosAuthenticated(config); |
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if (kerberos) { |
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//是否需要kerberos验证
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boolean needKrbAuth = needKrbAuth(config); |
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if (needKrbAuth) { |
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try { |
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System.setProperty("java.security.krb5.conf", krb5Conf); |
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conf.set("hadoop.security.authentication", "kerberos"); |
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processConfForPrincipal(conf, principal); |
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//需要重新刷新一下让krb5.conf配置生效
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refreshConfig(); |
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//类似OSGI下，类加载需要设置SecurityUtil.setSecurityInfoProviders(new AnnotatedSecurityInfo());
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//refer to https://stackoverflow.com/questions/37608049/how-to-connect-with-hdfs-via-kerberos-from-osgi-bundles
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SecurityUtil.setSecurityInfoProviders(new AnnotatedSecurityInfo()); |
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@ -102,12 +117,12 @@ public class HDFSRepositoryFactory extends ConfigRepositoryFactory<HDFSConfig> {
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kerberosAuthModeSet = true; |
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} |
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} else if (kerberosAuthModeSet) { |
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//如果不需要Kerberos认证，要设置认证方式和校验方式为默认
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conf.set("hadoop.security.authorization", "false"); |
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conf.set("hadoop.security.authentication", "simple"); |
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} |
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try { |
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if (StringUtils.isNotEmpty(principal) && !kerberos) { |
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if (StringUtils.isNotEmpty(principal) && !needKrbAuth) { |
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return FileSystem.newInstance(URI.create(hdfsUrl), conf, principal); |
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} else { |
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return FileSystem.newInstance(URI.create(hdfsUrl), conf); |
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@ -136,34 +151,72 @@ public class HDFSRepositoryFactory extends ConfigRepositoryFactory<HDFSConfig> {
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conf.setClass("fs.hdfs.impl", DistributedFileSystem.class, FileSystem.class); |
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conf.set("ipc.client.fallback-to-simple-auth-allowed", "true"); |
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return readXmlProperties(conf); |
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} |
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/** |
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* 如果明确用代码设置了值不会从hdfs-site.xml,core-site.xml读取属性 |
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* <p> |
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* 这里主要是为了读取用户一些特殊的配置 |
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* 比如rpc保护模式、principal格式限制之类的 |
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* |
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* @param conf 配置 |
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* @return 加载了hdfs-site.xml,core-site.xml文件的配置 |
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*/ |
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private Configuration readXmlProperties(Configuration conf) { |
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//插件目录
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PluginMarker marker = PluginContexts.currentContext().getMarker(); |
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if (marker != null) { |
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String location = StableUtils.pathJoin(ProjectConstants.PLUGINS_NAME, marker.getHomeName()); |
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String coreSiteXml = StableUtils.pathJoin(location, "core-site.xml"); |
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String hdfsSiteXml = StableUtils.pathJoin(location, "hdfs-site.xml"); |
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if (WorkContext.getWorkResource().exist(coreSiteXml)) { |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] core-site.xml is add to configuration"); |
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conf.addResource(WorkContext.getWorkResource().openStream(coreSiteXml)); |
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} |
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if (WorkContext.getWorkResource().exist(hdfsSiteXml)) { |
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FineLoggerFactory.getLogger().debug("[HDFS REPOSITORY] hdfs-site.xml is add to configuration"); |
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conf.addResource(WorkContext.getWorkResource().openStream(hdfsSiteXml)); |
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} |
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} |
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return conf; |
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} |
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private boolean kerberosAuthenticated(HDFSConfig config) { |
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/** |
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* 根据是否配置了kerberos的字段决定是否走kerberos认证逻辑 |
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* |
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* @param config |
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* @return |
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*/ |
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private boolean needKrbAuth(HDFSConfig config) { |
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return StringUtils.isNotEmpty(config.getKeyTab()) |
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&& StringUtils.isNotEmpty(config.getPrincipal()) |
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&& StringUtils.isNotEmpty(config.getKrbConf()); |
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} |
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/** |
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* BI-third内置了hadoop2.6的包，插件优先从lib下加载类， |
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* 此时kerberos认证会报错"Failed to specify server's Kerberos principal name" |
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* 需要设置一下principal的格式 |
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* @param conf |
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* @param principal |
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* 刷新hadoop配置对象，加载设置的jvm参数里配置的krb文件 |
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* |
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* @throws Exception |
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*/ |
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private void processConfForPrincipal(Configuration conf, String principal) { |
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//2.6.2以前的版本hdfs-site.xml没有默认的pricipal格式设置，需要手动加上
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//根据Kerberos V5 principal的格式primary/instance@REALM，确定实际的格式
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String principalPattern; |
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int primaryIdx = principal.indexOf("hdfs/"); |
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int atIdx = principal.indexOf("@"); |
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if (primaryIdx > -1 && atIdx > primaryIdx) { |
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String name = principal.substring(primaryIdx + "hdfs/".length(), atIdx - 1); |
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principalPattern = principal.replace(name, "*"); |
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conf.set("dfs.namenode.kerberos.principal.pattern", principalPattern); |
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private void refreshConfig() throws Exception { |
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Class<?> configClassRef; |
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if (System.getProperty("java.vendor").contains("IBM")) { |
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configClassRef = Class.forName("com.ibm.security.krb5.internal.Config"); |
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} else { |
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configClassRef = Class.forName("sun.security.krb5.Config"); |
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} |
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Method getInstanceMethod = configClassRef.getMethod("getInstance"); |
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Object kerbConf = getInstanceMethod.invoke(configClassRef); |
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Method refreshMethod = configClassRef.getDeclaredMethod("refresh"); |
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refreshMethod.invoke(kerbConf); |
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} |
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} |
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} |
rinoux
6 years ago
