Revert HDFS-4983

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1547970 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -775,9 +775,6 @@ Release 2.3.0 - UNRELEASED
 
     HDFS-4997. libhdfs doesn't return correct error codes in most cases (cmccabe)
 
-    HDFS-4983. Numeric usernames do not work with WebHDFS FS.
-    (Yongjun Zhang via wang)
-
 Release 2.2.0 - 2013-10-13
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeHttpServer.java

@@ -39,7 +39,6 @@
 import org.apache.hadoop.hdfs.web.AuthFilter;
 import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
 import org.apache.hadoop.hdfs.web.resources.Param;
-import org.apache.hadoop.hdfs.web.resources.UserParam;
 import org.apache.hadoop.http.HttpConfig;
 import org.apache.hadoop.http.HttpServer;
 import org.apache.hadoop.net.NetUtils;
@@ -74,10 +73,7 @@ public class NameNodeHttpServer {
 
   private void initWebHdfs(Configuration conf) throws IOException {
     if (WebHdfsFileSystem.isEnabled(conf, HttpServer.LOG)) {
-      // set user pattern based on configuration file
-      UserParam.setUserPattern(conf);
-
-      // add SPNEGO authentication filter for webhdfs
+      //add SPNEGO authentication filter for webhdfs
       final String name = "SPNEGO";
       final String classname = AuthFilter.class.getName();
       final String pathSpec = WebHdfsFileSystem.PATH_PREFIX + "/*";

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsConfigKeys.java

@@ -1,38 +0,0 @@
-/**
- * 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.
- */
-
-package org.apache.hadoop.hdfs.web;
-
-import org.apache.hadoop.classification.InterfaceAudience;
-import org.apache.hadoop.hdfs.DFSConfigKeys;
-
-/**
- * This class contains constants for configuration keys used
- * in WebHdfs.
- *
- */
-
-@InterfaceAudience.Private
-public class WebHdfsConfigKeys extends DFSConfigKeys {
-  /** User name pattern key */
-  public static final String USER_PATTERN_KEY =
-      "webhdfs.user.provider.user.pattern";
-  /** Default user name pattern value */
-  public static final String USER_PATTERN_DEFAULT =
-      "^[A-Za-z_][A-Za-z0-9._-]*[$]?$";
-}

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java

@@ -157,8 +157,6 @@ public synchronized void initialize(URI uri, Configuration conf
       ) throws IOException {
     super.initialize(uri, conf);
     setConf(conf);
-    /** set user pattern based on configuration file */
-    UserParam.setUserPattern(conf);
     connectionFactory = URLConnectionFactory
         .newDefaultURLConnectionFactory(conf);
     initializeTokenAspect();

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserParam.java

@@ -17,11 +17,7 @@
  */
 package org.apache.hadoop.hdfs.web.resources;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.UserGroupInformation;
-import static org.apache.hadoop.hdfs.web.WebHdfsConfigKeys.USER_PATTERN_KEY;
-import static org.apache.hadoop.hdfs.web.WebHdfsConfigKeys.USER_PATTERN_DEFAULT;
-import com.google.common.annotations.VisibleForTesting;
 
 import java.text.MessageFormat;
 import java.util.regex.Pattern;
@@ -33,29 +29,8 @@ public class UserParam extends StringParam {
   /** Default parameter value. */
   public static final String DEFAULT = "";
 
-  private static String userPattern = null;
-  private static Domain domain = null;
-
-  static {
-      setUserPattern(USER_PATTERN_DEFAULT);
-  }
-
-  @VisibleForTesting
-  public static String getUserPattern() {
-    return userPattern;
-  }
-
-  @VisibleForTesting
-  public static void setUserPattern(String pattern) {
-    userPattern = pattern;
-    Pattern pt = Pattern.compile(userPattern);
-    domain = new Domain(NAME, pt);
-  }
-
-  public static void setUserPattern(Configuration conf) {
-    String pattern = conf.get(USER_PATTERN_KEY, USER_PATTERN_DEFAULT);
-    setUserPattern(pattern);
-  }
+  private static final Domain DOMAIN = new Domain(NAME,
+    Pattern.compile("^[A-Za-z_][A-Za-z0-9._-]*[$]?$"));
 
   private static String validateLength(String str) {
     if (str == null) {
@@ -75,7 +50,7 @@ private static String validateLength(String str) {
    * @param str a string representation of the parameter value.
    */
   public UserParam(final String str) {
-    super(domain, str == null || str.equals(DEFAULT)? null : validateLength(str));
+    super(DOMAIN, str == null || str.equals(DEFAULT)? null : validateLength(str));
   }
 
   /**

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java

@@ -38,7 +38,6 @@
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.TestDFSClientRetries;
 import org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods;
-import org.apache.hadoop.hdfs.web.WebHdfsConfigKeys;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.log4j.Level;
 import org.junit.Assert;
@@ -262,34 +261,6 @@ public Void run() throws IOException, URISyntaxException {
     }
   }
 
-  @Test(timeout=300000)
-  public void testNumericalUserName() throws Exception {
-    final Configuration conf = WebHdfsTestUtil.createConf();
-    conf.set(WebHdfsConfigKeys.USER_PATTERN_KEY, "^[A-Za-z0-9_][A-Za-z0-9._-]*[$]?$");
-    final MiniDFSCluster cluster =
-        new MiniDFSCluster.Builder(conf).numDataNodes(1).build();
-    try {
-      cluster.waitActive();
-      WebHdfsTestUtil.getWebHdfsFileSystem(conf, WebHdfsFileSystem.SCHEME)
-          .setPermission(new Path("/"),
-              new FsPermission(FsAction.ALL, FsAction.ALL, FsAction.ALL));
-
-      UserGroupInformation.createUserForTesting("123", new String[]{"my-group"})
-        .doAs(new PrivilegedExceptionAction<Void>() {
-          @Override
-          public Void run() throws IOException, URISyntaxException {
-            FileSystem fs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
-                WebHdfsFileSystem.SCHEME);
-            Path d = new Path("/my-dir");
-            Assert.assertTrue(fs.mkdirs(d));
-            return null;
-          }
-        });
-    } finally {
-      cluster.shutdown();
-    }
-  }
-
   /**
    * WebHdfs should be enabled by default after HDFS-5532
    * 

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/resources/TestParam.java

@@ -285,19 +285,4 @@ public void testConcatSourcesParam() {
       Assert.assertEquals(expected, computed.getValue());
     }
   }
-
-  @Test
-  public void testUserNameOkAfterResettingPattern() {
-    String oldPattern = UserParam.getUserPattern();
-    String newPattern = "^[A-Za-z0-9_][A-Za-z0-9._-]*[$]?$";
-
-    UserParam.setUserPattern(newPattern);
-
-    UserParam userParam = new UserParam("1x");
-    assertNotNull(userParam.getValue());
-    userParam = new UserParam("123");
-    assertNotNull(userParam.getValue());
-
-    UserParam.setUserPattern(oldPattern);
-  }
 }