HDFS-13972. RBF: Support for Delegation Token (WebHDFS). Contributed by CR Hota.

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java

@@ -37,6 +37,8 @@ import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.DFSUtil;
 import org.apache.hadoop.hdfs.HAUtil;
+import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier;
+import org.apache.hadoop.hdfs.server.common.TokenVerifier;
 import org.apache.hadoop.hdfs.server.federation.metrics.FederationMetrics;
 import org.apache.hadoop.hdfs.server.federation.metrics.NamenodeBeanMetrics;
 import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
@@ -76,7 +78,8 @@ import com.google.common.annotations.VisibleForTesting;
  */
 @InterfaceAudience.Private
 @InterfaceStability.Evolving
-public class Router extends CompositeService {
+public class Router extends CompositeService implements
+    TokenVerifier<DelegationTokenIdentifier> {
 
   private static final Logger LOG = LoggerFactory.getLogger(Router.class);
 
@@ -470,6 +473,12 @@ public class Router extends CompositeService {
     return null;
   }
 
+  @Override
+  public void verifyToken(DelegationTokenIdentifier tokenId, byte[] password)
+      throws IOException {
+    getRpcServer().getRouterSecurityManager().verifyToken(tokenId, password);
+  }
+
   /////////////////////////////////////////////////////////
   // Namenode heartbeat monitors
   /////////////////////////////////////////////////////////

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java

@@ -203,6 +203,9 @@ public class RouterRpcServer extends AbstractService
   private final RouterClientProtocol clientProto;
   /** Router security manager to handle token operations. */
   private RouterSecurityManager securityManager = null;
+  /** Super user credentials that a thread may use. */
+  private static final ThreadLocal<UserGroupInformation> CUR_USER =
+      new ThreadLocal<>();
 
   /**
    * Construct a router RPC server.
@@ -1514,10 +1517,25 @@ public class RouterRpcServer extends AbstractService
    * @throws IOException If we cannot get the user information.
    */
   public static UserGroupInformation getRemoteUser() throws IOException {
-    UserGroupInformation ugi = Server.getRemoteUser();
+    UserGroupInformation ugi = CUR_USER.get();
+    ugi = (ugi != null) ? ugi : Server.getRemoteUser();
     return (ugi != null) ? ugi : UserGroupInformation.getCurrentUser();
   }
 
+  /**
+   * Set super user credentials if needed.
+   */
+  static void setCurrentUser(UserGroupInformation ugi) {
+    CUR_USER.set(ugi);
+  }
+
+  /**
+   * Reset to discard super user credentials.
+   */
+  static void resetCurrentUser() {
+    CUR_USER.set(null);
+  }
+
   /**
    * Merge the outputs from multiple namespaces.
    *

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterWebHdfsMethods.java

@@ -19,7 +19,6 @@ package org.apache.hadoop.hdfs.server.federation.router;
 
 import static org.apache.hadoop.util.StringUtils.getTrimmedStringCollection;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
@@ -27,13 +26,10 @@ import org.apache.hadoop.hdfs.protocol.LocatedBlock;
 import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
 import org.apache.hadoop.hdfs.server.common.JspHelper;
-import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
+import org.apache.hadoop.hdfs.server.federation.router.security.RouterSecurityManager;
-import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation;
 import org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods;
 
 import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
 import javax.ws.rs.Path;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
@@ -42,7 +38,6 @@ import javax.ws.rs.core.Response;
 import com.sun.jersey.spi.container.ResourceFilters;
 import org.apache.hadoop.hdfs.web.JsonUtil;
 import org.apache.hadoop.hdfs.web.ParamFilter;
-import org.apache.hadoop.hdfs.web.URLConnectionFactory;
 import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
 import org.apache.hadoop.hdfs.web.resources.AccessTimeParam;
 import org.apache.hadoop.hdfs.web.resources.AclPermissionParam;
@@ -91,6 +86,7 @@ import org.apache.hadoop.hdfs.web.resources.XAttrValueParam;
 import org.apache.hadoop.ipc.ExternalCall;
 import org.apache.hadoop.ipc.RetriableException;
 import org.apache.hadoop.net.Node;
+import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
@@ -99,12 +95,8 @@ import org.slf4j.LoggerFactory;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.net.HttpURLConnection;
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.net.URL;
-import java.net.URLDecoder;
-import java.security.PrivilegedAction;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
@@ -224,7 +216,11 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
     case CREATE:
     {
       final Router router = getRouter();
-      final URI uri = redirectURI(router, fullpath);
+      final URI uri = redirectURI(router, ugi, delegation, username,
+          doAsUser, fullpath, op.getValue(), -1L,
+          exclDatanodes.getValue(), permission, unmaskedPermission,
+          overwrite, bufferSize, replication, blockSize, createParent,
+          createFlagParam);
       if (!noredirectParam.getValue()) {
         return Response.temporaryRedirect(uri)
             .type(MediaType.APPLICATION_OCTET_STREAM).build();
@@ -366,6 +362,7 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
           return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
         }
       }
+      case GETDELEGATIONTOKEN:
       case GET_BLOCK_LOCATIONS:
       case GETFILESTATUS:
       case LISTSTATUS:
@@ -389,104 +386,6 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
     }
   }
 
-  /**
-   * Get the redirect URI from the Namenode responsible for a path.
-   * @param router Router to check.
-   * @param path Path to get location for.
-   * @return URI returned by the Namenode.
-   * @throws IOException If it cannot get the redirect URI.
-   */
-  private URI redirectURI(final Router router, final String path)
-      throws IOException {
-    // Forward the request to the proper Namenode
-    final HttpURLConnection conn = forwardRequest(router, path);
-    try {
-      conn.setInstanceFollowRedirects(false);
-      conn.setDoOutput(true);
-      conn.connect();
-
-      // Read the reply from the Namenode
-      int responseCode = conn.getResponseCode();
-      if (responseCode != HttpServletResponse.SC_TEMPORARY_REDIRECT) {
-        LOG.info("We expected a redirection from the Namenode, not {}",
-            responseCode);
-        return null;
-      }
-
-      // Extract the redirect location and return it
-      String redirectLocation = conn.getHeaderField("Location");
-      try {
-        // We modify the namenode location and the path
-        redirectLocation = redirectLocation
-            .replaceAll("(?<=[?&;])namenoderpcaddress=.*?(?=[&;])",
-                "namenoderpcaddress=" + router.getRouterId())
-            .replaceAll("(?<=[/])webhdfs/v1/.*?(?=[?])",
-                "webhdfs/v1" + path);
-        return new URI(redirectLocation);
-      } catch (URISyntaxException e) {
-        LOG.error("Cannot parse redirect location {}", redirectLocation);
-      }
-    } finally {
-      if (conn != null) {
-        conn.disconnect();
-      }
-    }
-    return null;
-  }
-
-  /**
-   * Forwards a request to a subcluster.
-   * @param router Router to check.
-   * @param path Path in HDFS.
-   * @return Reply from the subcluster.
-   * @throws IOException
-   */
-  private HttpURLConnection forwardRequest(
-      final Router router, final String path) throws IOException {
-    final Configuration conf =
-        (Configuration)getContext().getAttribute(JspHelper.CURRENT_CONF);
-    URLConnectionFactory connectionFactory =
-        URLConnectionFactory.newDefaultURLConnectionFactory(conf);
-
-    // Find the namespace responsible for a path
-    final RouterRpcServer rpcServer = getRPCServer(router);
-    RemoteLocation createLoc = rpcServer.getCreateLocation(path);
-    String nsId = createLoc.getNameserviceId();
-    String dest = createLoc.getDest();
-    ActiveNamenodeResolver nnResolver = router.getNamenodeResolver();
-    List<? extends FederationNamenodeContext> namenodes =
-        nnResolver.getNamenodesForNameserviceId(nsId);
-
-    // Go over the namenodes responsible for that namespace
-    for (FederationNamenodeContext namenode : namenodes) {
-      try {
-        // Generate the request for the namenode
-        String nnWebAddress = namenode.getWebAddress();
-        String[] nnWebAddressSplit = nnWebAddress.split(":");
-        String host = nnWebAddressSplit[0];
-        int port = Integer.parseInt(nnWebAddressSplit[1]);
-
-        // Avoid double-encoding here
-        query = URLDecoder.decode(query, "UTF-8");
-        URI uri = new URI(getScheme(), null, host, port,
-            reqPath + dest, query, null);
-        URL url = uri.toURL();
-
-        // Send a request to the proper Namenode
-        final HttpURLConnection conn =
-            (HttpURLConnection)connectionFactory.openConnection(url);
-        conn.setRequestMethod(method);
-
-        connectionFactory.destroy();
-        return conn;
-      } catch (Exception e) {
-        LOG.error("Cannot redirect request to {}", namenode, e);
-      }
-    }
-    connectionFactory.destroy();
-    return null;
-  }
-
   /**
    * Get a URI to redirect an operation to.
    * @param router Router to check.
@@ -526,7 +425,7 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
     } else {
       // generate a token
       final Token<? extends TokenIdentifier> t = generateDelegationToken(
-          router, ugi, request.getUserPrincipal().getName());
+          ugi, ugi.getUserName());
       delegationQuery = "&delegation=" + t.encodeToUrlString();
     }
 
@@ -552,19 +451,17 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
     // We need to get the DNs as a privileged user
     final RouterRpcServer rpcServer = getRPCServer(router);
     UserGroupInformation loginUser = UserGroupInformation.getLoginUser();
+    RouterRpcServer.setCurrentUser(loginUser);
 
-    DatanodeInfo[] dns = loginUser.doAs(
+    DatanodeInfo[] dns = null;
-        new PrivilegedAction<DatanodeInfo[]>() {
+    try {
-          @Override
+      dns = rpcServer.getDatanodeReport(DatanodeReportType.LIVE);
-          public DatanodeInfo[] run() {
+    } catch (IOException e) {
-            try {
+      LOG.error("Cannot get the datanodes from the RPC server", e);
-              return rpcServer.getDatanodeReport(DatanodeReportType.LIVE);
+    } finally {
-            } catch (IOException e) {
+      // Reset ugi to remote user for remaining operations.
-              LOG.error("Cannot get the datanodes from the RPC server", e);
+      RouterRpcServer.resetCurrentUser();
-              return null;
+    }
-            }
-          }
-        });
 
     HashSet<Node> excludes = new HashSet<Node>();
     if (excludeDatanodes != null) {
@@ -646,17 +543,19 @@ public class RouterWebHdfsMethods extends NamenodeWebHdfsMethods {
   }
 
   /**
-   * Generate the delegation tokens for this request.
+   * Generate the credentials for this request.
-   * @param router Router.
    * @param ugi User group information.
    * @param renewer Who is asking for the renewal.
-   * @return The delegation tokens.
+   * @return Credentials holding delegation token.
-   * @throws IOException If it cannot create the tokens.
+   * @throws IOException If it cannot create the credentials.
    */
-  private Token<? extends TokenIdentifier> generateDelegationToken(
+  @Override
-      final Router router, final UserGroupInformation ugi,
+  public Credentials createCredentials(
+      final UserGroupInformation ugi,
       final String renewer) throws IOException {
-    throw new UnsupportedOperationException("TODO Generate token for ugi=" +
+    final Router router = (Router)getContext().getAttribute("name.node");
-        ugi + " request=" + request);
+    final Credentials c = RouterSecurityManager.createCredentials(router, ugi,
+        renewer != null? renewer: ugi.getShortUserName());
+    return c;
   }
 }

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/security/RouterSecurityManager.java

@@ -24,8 +24,10 @@ import org.apache.hadoop.hdfs.DFSUtil;
 import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier;
 import org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys;
 import org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer;
+import org.apache.hadoop.hdfs.server.federation.router.Router;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.SecurityUtil;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;
@@ -36,6 +38,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.net.InetSocketAddress;
 import java.lang.reflect.Constructor;
 
 /**
@@ -183,6 +186,12 @@ public class RouterSecurityManager {
     return token;
   }
 
+  /**
+   * @param token token to renew
+   * @return new expiryTime of the token
+   * @throws SecretManager.InvalidToken if {@code token} is invalid
+   * @throws IOException on errors
+   */
   public long renewDelegationToken(Token<DelegationTokenIdentifier> token)
           throws SecretManager.InvalidToken, IOException {
     LOG.debug("Renew delegation token");
@@ -211,6 +220,10 @@ public class RouterSecurityManager {
     return expiryTime;
   }
 
+  /**
+   * @param token token to cancel
+   * @throws IOException on error
+   */
   public void cancelDelegationToken(Token<DelegationTokenIdentifier> token)
           throws IOException {
     LOG.debug("Cancel delegation token");
@@ -233,6 +246,34 @@ public class RouterSecurityManager {
     }
   }
 
+  /**
+   * A utility method for creating credentials.
+   * Used by web hdfs to return url encoded token.
+   */
+  public static Credentials createCredentials(
+      final Router router, final UserGroupInformation ugi,
+      final String renewer) throws IOException {
+    final Token<DelegationTokenIdentifier> token =
+        router.getRpcServer().getDelegationToken(new Text(renewer));
+    if (token == null) {
+      return null;
+    }
+    final InetSocketAddress addr = router.getRpcServerAddress();
+    SecurityUtil.setTokenService(token, addr);
+    final Credentials c = new Credentials();
+    c.addToken(new Text(ugi.getShortUserName()), token);
+    return c;
+  }
+
+  /**
+   * Delegation token verification.
+   * Used by web hdfs to verify url encoded token.
+   */
+  public void verifyToken(DelegationTokenIdentifier identifier,
+      byte[] password) throws SecretManager.InvalidToken {
+    this.dtSecretManager.verifyToken(identifier, password);
+  }
+
   /**
    * Log status of delegation token related operation.
    * Extend in future to use audit logger instead of local logging.

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractDelegationToken.java

@@ -83,9 +83,11 @@ public class TestRouterHDFSContractDelegationToken
     assertTrue(identifier.getMaxDate() >= identifier.getIssueDate());
 
     // Renew delegation token
-    token.renew(initSecurity());
+    long expiryTime = token.renew(initSecurity());
     assertNotNull(token);
-    assertTrue(token.decodeIdentifier().getMaxDate() >= existingMaxTime);
+    assertEquals(existingMaxTime, token.decodeIdentifier().getMaxDate());
+    // Expiry time after renewal should never exceed max time of the token.
+    assertTrue(expiryTime <= existingMaxTime);
     // Renewal should retain old master key id and sequence number
     identifier = token.decodeIdentifier();
     assertEquals(identifier.getMasterKeyId(), masterKeyId);

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/security/TestRouterHttpDelegationToken.java

@@ -0,0 +1,163 @@
+/*
+ * 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.hdfs.server.federation.security;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.util.Enumeration;
+import java.util.Properties;
+
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.SWebHdfs;
+import org.apache.hadoop.fs.contract.router.SecurityConfUtil;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
+import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier;
+import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
+import org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys;
+import org.apache.hadoop.hdfs.server.federation.router.Router;
+import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
+import org.apache.hadoop.security.authentication.server.AuthenticationFilter;
+import org.apache.hadoop.security.authentication.server.PseudoAuthenticationHandler;
+import org.apache.hadoop.security.token.SecretManager.InvalidToken;
+import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.test.LambdaTestUtils;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+
+/**
+ * Test Delegation Tokens from the Router HTTP interface.
+ */
+public class TestRouterHttpDelegationToken {
+
+  private Router router;
+  private WebHdfsFileSystem fs;
+
+  /**
+   * Custom filter to be able to test auth methods and let the other ones go.
+   */
+  public static final class NoAuthFilter extends AuthenticationFilter {
+    @Override
+    protected Properties getConfiguration(String configPrefix,
+        FilterConfig filterConfig) throws ServletException {
+      Properties props = new Properties();
+      Enumeration<?> names = filterConfig.getInitParameterNames();
+      while (names.hasMoreElements()) {
+        String name = (String) names.nextElement();
+        if (name.startsWith(configPrefix)) {
+          String value = filterConfig.getInitParameter(name);
+          props.put(name.substring(configPrefix.length()), value);
+        }
+      }
+      props.put(AuthenticationFilter.AUTH_TYPE, "simple");
+      props.put(PseudoAuthenticationHandler.ANONYMOUS_ALLOWED, "true");
+      return props;
+    }
+  }
+
+  @Before
+  public void setup() throws Exception {
+    Configuration conf = SecurityConfUtil.initSecurity();
+    conf.set(RBFConfigKeys.DFS_ROUTER_HTTP_ADDRESS_KEY, "0.0.0.0:0");
+    conf.set(RBFConfigKeys.DFS_ROUTER_HTTPS_ADDRESS_KEY, "0.0.0.0:0");
+    conf.set(RBFConfigKeys.DFS_ROUTER_RPC_ADDRESS_KEY, "0.0.0.0:0");
+    conf.set(DFSConfigKeys.DFS_WEBHDFS_AUTHENTICATION_FILTER_KEY,
+        NoAuthFilter.class.getName());
+
+    // Start routers with an RPC and HTTP service only
+    Configuration routerConf = new RouterConfigBuilder()
+        .rpc()
+        .http()
+        .build();
+
+    conf.addResource(routerConf);
+    router = new Router();
+    router.init(conf);
+    router.start();
+
+    InetSocketAddress webAddress = router.getHttpServerAddress();
+    URI webURI = new URI(SWebHdfs.SCHEME, null,
+        webAddress.getHostName(), webAddress.getPort(), null, null, null);
+    fs = (WebHdfsFileSystem)FileSystem.get(webURI, conf);
+  }
+
+  @After
+  public void cleanup() throws Exception {
+    if (router != null) {
+      router.stop();
+      router.close();
+    }
+  }
+
+  @Test
+  public void testGetDelegationToken() throws Exception {
+    final String renewer = "renewer0";
+    Token<?> token = fs.getDelegationToken(renewer);
+    assertNotNull(token);
+
+    DelegationTokenIdentifier tokenId =
+        getTokenIdentifier(token.getIdentifier());
+    assertEquals("router", tokenId.getOwner().toString());
+    assertEquals(renewer, tokenId.getRenewer().toString());
+    assertEquals("", tokenId.getRealUser().toString());
+    assertEquals("SWEBHDFS delegation", token.getKind().toString());
+    assertNotNull(token.getPassword());
+
+    InetSocketAddress webAddress = router.getHttpServerAddress();
+    assertEquals(webAddress.getHostName() + ":" + webAddress.getPort(),
+        token.getService().toString());
+  }
+
+  @Test
+  public void testRenewDelegationToken() throws Exception {
+    Token<?> token = fs.getDelegationToken("router");
+    DelegationTokenIdentifier tokenId =
+        getTokenIdentifier(token.getIdentifier());
+
+    long t = fs.renewDelegationToken(token);
+    assertTrue(t + " should not be larger than " + tokenId.getMaxDate(),
+        t <= tokenId.getMaxDate());
+  }
+
+  @Test
+  public void testCancelDelegationToken() throws Exception {
+    Token<?> token = fs.getDelegationToken("router");
+    fs.cancelDelegationToken(token);
+    LambdaTestUtils.intercept(InvalidToken.class,
+        "Renewal request for unknown token",
+        () -> fs.renewDelegationToken(token));
+  }
+
+  private DelegationTokenIdentifier getTokenIdentifier(byte[] id)
+      throws IOException {
+    DelegationTokenIdentifier identifier = new DelegationTokenIdentifier();
+    ByteArrayInputStream bais = new ByteArrayInputStream(id);
+    DataInputStream dais = new DataInputStream(bais);
+    identifier.readFields(dais);
+    return identifier;
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/security/TestRouterSecurityManager.java

@@ -18,9 +18,15 @@
 
 package org.apache.hadoop.hdfs.server.federation.security;
 
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.contract.router.RouterHDFSContract;
 import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier;
+import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
 import org.apache.hadoop.hdfs.server.federation.router.security.RouterSecurityManager;
+import org.apache.hadoop.hdfs.server.federation.router.Router;
 import org.apache.hadoop.io.Text;
+import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.SecretManager;
 import org.apache.hadoop.security.token.Token;
@@ -31,7 +37,10 @@ import org.junit.Rule;
 import org.junit.Test;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertEquals;
+import static org.apache.hadoop.fs.contract.router.SecurityConfUtil.initSecurity;
 
+import org.hamcrest.core.StringContains;
 import java.io.IOException;
 
 import org.slf4j.Logger;
@@ -64,21 +73,19 @@ public class TestRouterSecurityManager {
 
   @Test
   public void testDelegationTokens() throws IOException {
-    String[] groupsForTesting = new String[1];
+    UserGroupInformation.reset();
-    groupsForTesting[0] = "router_group";
     UserGroupInformation.setLoginUser(UserGroupInformation
-        .createUserForTesting("router", groupsForTesting));
+        .createUserForTesting("router", getUserGroupForTesting()));
 
     // Get a delegation token
     Token<DelegationTokenIdentifier> token =
         securityManager.getDelegationToken(new Text("some_renewer"));
     assertNotNull(token);
-
     // Renew the delegation token
     UserGroupInformation.setLoginUser(UserGroupInformation
-        .createUserForTesting("some_renewer", groupsForTesting));
+        .createUserForTesting("some_renewer", getUserGroupForTesting()));
     long updatedExpirationTime = securityManager.renewDelegationToken(token);
-    assertTrue(updatedExpirationTime >= token.decodeIdentifier().getMaxDate());
+    assertTrue(updatedExpirationTime <= token.decodeIdentifier().getMaxDate());
 
     // Cancel the delegation token
     securityManager.cancelDelegationToken(token);
@@ -90,4 +97,71 @@ public class TestRouterSecurityManager {
     // This throws an exception as token has been cancelled.
     securityManager.renewDelegationToken(token);
   }
+
+  @Test
+  public void testVerifyToken() throws IOException {
+    UserGroupInformation.reset();
+    UserGroupInformation.setLoginUser(UserGroupInformation
+        .createUserForTesting("router", getUserGroupForTesting()));
+
+    // Get a delegation token
+    Token<DelegationTokenIdentifier> token =
+        securityManager.getDelegationToken(new Text("some_renewer"));
+    assertNotNull(token);
+
+    // Verify the password in delegation token
+    securityManager.verifyToken(token.decodeIdentifier(),
+        token.getPassword());
+
+    // Verify an invalid password
+    String exceptionCause = "password doesn't match";
+    exceptionRule.expect(SecretManager.InvalidToken.class);
+    exceptionRule.expectMessage(
+        StringContains.containsString(exceptionCause));
+
+    securityManager.verifyToken(token.decodeIdentifier(), new byte[10]);
+  }
+
+  @Test
+  public void testCreateCredentials() throws Exception {
+    Configuration conf = initSecurity();
+
+    // Start routers with only an RPC service
+    Configuration routerConf = new RouterConfigBuilder()
+        .metrics()
+        .rpc()
+        .build();
+
+    conf.addResource(routerConf);
+    Router router = new Router();
+    router.init(conf);
+    router.start();
+
+    UserGroupInformation ugi =
+        UserGroupInformation.createUserForTesting(
+        "router", getUserGroupForTesting());
+    Credentials creds = RouterSecurityManager.createCredentials(
+        router, ugi, "some_renewer");
+    for (Token token : creds.getAllTokens()) {
+      assertNotNull(token);
+      // Verify properties of the token
+      assertEquals("HDFS_DELEGATION_TOKEN", token.getKind().toString());
+      DelegationTokenIdentifier identifier = (DelegationTokenIdentifier)
+          token.decodeIdentifier();
+      assertNotNull(identifier);
+      String owner = identifier.getOwner().toString();
+      // Windows will not reverse name lookup "127.0.0.1" to "localhost".
+      String host = Path.WINDOWS ? "127.0.0.1" : "localhost";
+      String expectedOwner = "router/"+ host + "@EXAMPLE.COM";
+      assertEquals(expectedOwner, owner);
+      assertEquals("some_renewer", identifier.getRenewer().toString());
+    }
+    RouterHDFSContract.destroyCluster();
+  }
+
+
+  private static String[] getUserGroupForTesting() {
+    String[] groupsForTesting = {"router_group"};
+    return groupsForTesting;
+  }
 }