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<h5>General</h5>
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<a href="../index.html">Overview</a>
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<h5>Common</h5>
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<a href="../hadoop-project-dist/hadoop-common/CredentialProviderAPI.html">Credential Provider API</a>
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<a href="../hadoop-project-dist/hadoop-common/Tracing.html">Tracing</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html">NameNode HA With QJM</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithNFS.html">NameNode HA With NFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ViewFs.html">ViewFs</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html">Permissions and HDFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/LibHdfs.html">libhdfs (C API)</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ShortCircuitLocalReads.html">Short Circuit Local Reads</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html">Centralized Cache Management</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsNfsGateway.html">NFS Gateway</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html">Rolling Upgrade</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ExtendedAttributes.html">Extended Attributes</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/TransparentEncryption.html">Transparent Encryption</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsMultihoming.html">Multihoming</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/ArchivalStorage.html">Storage Policies</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/MemoryStorage.html">Memory Storage Support</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/SLGUserGuide.html">Synthetic Load Generator</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSErasureCoding.html">Erasure Coding</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSDiskbalancer.html">Disk Balancer</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsUpgradeDomain.html">Upgrade Domain</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsDataNodeAdminGuide.html">DataNode Admin</a>
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<a href="../hadoop-project-dist/hadoop-hdfs-rbf/HDFSRouterFederation.html">Router Federation</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsProvidedStorage.html">Provided Storage</a>
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</ul>
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<h5>MapReduce</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduceTutorial.html">Tutorial</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapredCommands.html">Commands Reference</a>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduce_Compatibility_Hadoop1_Hadoop2.html">Compatibility with 1.x</a>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/EncryptedShuffle.html">Encrypted Shuffle</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/PluggableShuffleAndPluggableSort.html">Pluggable Shuffle/Sort</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/DistributedCacheDeploy.html">Distributed Cache Deploy</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/SharedCacheSupport.html">Support for YARN Shared Cache</a>
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</li>
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</ul>
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<h5>MapReduce REST APIs</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapredAppMasterRest.html">MR Application Master</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-hs/HistoryServerRest.html">MR History Server</a>
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</li>
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</ul>
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<h5>YARN</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YARN.html">Architecture</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnCommands.html">Commands Reference</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html">Capacity Scheduler</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/FairScheduler.html">Fair Scheduler</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerRestart.html">ResourceManager Restart</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerHA.html">ResourceManager HA</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceModel.html">Resource Model</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeLabel.html">Node Labels</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeAttributes.html">Node Attributes</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WebApplicationProxy.html">Web Application Proxy</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServer.html">Timeline Server</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServiceV2.html">Timeline Service V.2</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html">Writing YARN Applications</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnApplicationSecurity.html">YARN Application Security</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManager.html">NodeManager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/DockerContainers.html">Running Applications in Docker Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/RuncContainers.html">Running Applications in runC Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManagerCgroups.html">Using CGroups</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/SecureContainer.html">Secure Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ReservationSystem.html">Reservation System</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/GracefulDecommission.html">Graceful Decommission</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/OpportunisticContainers.html">Opportunistic Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/Federation.html">YARN Federation</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/SharedCache.html">Shared Cache</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/UsingGpus.html">Using GPU</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/UsingFPGA.html">Using FPGA</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/PlacementConstraints.html">Placement Constraints</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnUI2.html">YARN UI2</a>
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</li>
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</ul>
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<h5>YARN REST APIs</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WebServicesIntro.html">Introduction</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html">Resource Manager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManagerRest.html">Node Manager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServer.html#Timeline_Server_REST_API_v1">Timeline Server</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServiceV2.html#Timeline_Service_v.2_REST_API">Timeline Service V.2</a>
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</li>
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</ul>
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<h5>YARN Service</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/Overview.html">Overview</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/QuickStart.html">QuickStart</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/Concepts.html">Concepts</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/YarnServiceAPI.html">Yarn Service API</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/ServiceDiscovery.html">Service Discovery</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/SystemServices.html">System Services</a>
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</li>
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</ul>
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<h5>Hadoop Compatible File Systems</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-aliyun/tools/hadoop-aliyun/index.html">Aliyun OSS</a>
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</li>
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<li class="none">
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<a href="../hadoop-aws/tools/hadoop-aws/index.html">Amazon S3</a>
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</li>
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<li class="none">
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<a href="../hadoop-azure/index.html">Azure Blob Storage</a>
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</li>
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<li class="none">
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<a href="../hadoop-azure-datalake/index.html">Azure Data Lake Storage</a>
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</li>
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<li class="none">
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<a href="../hadoop-cos/cloud-storage/index.html">Tencent COS</a>
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</li>
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<li class="none">
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<a href="../hadoop-huaweicloud/cloud-storage/index.html">Huaweicloud OBS</a>
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</li>
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</ul>
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<h5>Auth</h5>
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<a href="../hadoop-auth/index.html">Overview</a>
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<a href="../hadoop-auth/BuildingIt.html">Building</a>
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<h5>Tools</h5>
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<a href="../hadoop-streaming/HadoopStreaming.html">Hadoop Streaming</a>
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<a href="../hadoop-archives/HadoopArchives.html">Hadoop Archives</a>
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<a href="../hadoop-resourceestimator/ResourceEstimator.html">Resource Estimator Service</a>
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<h5>Reference</h5>
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<a href="../hadoop-project-dist/hadoop-common/release/">Changelog and Release Notes</a>
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<a href="../api/index.html">Java API docs</a>
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<h5>Configuration</h5>
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<a href="../hadoop-project-dist/hadoop-common/core-default.xml">core-default.xml</a>
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml">mapred-default.xml</a>
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<!---
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. See accompanying LICENSE file.
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-->
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<h1>Hadoop Auth, Java HTTP SPNEGO - Examples</h1><section>
|
|
<h2><a name="Accessing_a_Hadoop_Auth_protected_URL_Using_a_browser"></a>Accessing a Hadoop Auth protected URL Using a browser</h2>
|
|
<p><b>IMPORTANT:</b> The browser must support HTTP Kerberos SPNEGO. For example, Firefox or Internet Explorer.</p>
|
|
<p>For Firefox access the low level configuration page by loading the <code>about:config</code> page. Then go to the <code>network.negotiate-auth.trusted-uris</code> preference and add the hostname or the domain of the web server that is HTTP Kerberos SPNEGO protected (if using multiple domains and hostname use comma to separate them).</p></section><section>
|
|
<h2><a name="Accessing_a_Hadoop_Auth_protected_URL_Using_curl"></a>Accessing a Hadoop Auth protected URL Using <code>curl</code></h2>
|
|
<p><b>IMPORTANT:</b> The <code>curl</code> version must support GSS, run <code>curl -V</code>.</p>
|
|
|
|
<div class="source">
|
|
<div class="source">
|
|
<pre>$ curl -V
|
|
curl 7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3
|
|
Protocols: tftp ftp telnet dict ldap http file https ftps
|
|
Features: GSS-Negotiate IPv6 Largefile NTLM SSL libz
|
|
</pre></div></div>
|
|
|
|
<p>Login to the KDC using <b>kinit</b> and then use <code>curl</code> to fetch protected URL:</p>
|
|
|
|
<div class="source">
|
|
<div class="source">
|
|
<pre>$ kinit
|
|
Please enter the password for tucu@LOCALHOST:
|
|
$ curl --negotiate -u : -b ~/cookiejar.txt -c ~/cookiejar.txt http://$(hostname -f):8080/hadoop-auth-examples/kerberos/who
|
|
Enter host password for user 'tucu':
|
|
|
|
Hello Hadoop Auth Examples!
|
|
</pre></div></div>
|
|
|
|
<ul>
|
|
|
|
<li>
|
|
|
|
<p>The <code>--negotiate</code> option enables SPNEGO in <code>curl</code>.</p>
|
|
</li>
|
|
<li>
|
|
|
|
<p>The <code>-u :</code> option is required but the user ignored (the principal that has been kinit-ed is used).</p>
|
|
</li>
|
|
<li>
|
|
|
|
<p>The <code>-b</code> and <code>-c</code> are use to store and send HTTP Cookies.</p>
|
|
</li>
|
|
</ul></section><section>
|
|
<h2><a name="Using_the_Java_Client"></a>Using the Java Client</h2>
|
|
<p>Use the <code>AuthenticatedURL</code> class to obtain an authenticated HTTP connection:</p>
|
|
|
|
<div class="source">
|
|
<div class="source">
|
|
<pre>...
|
|
URL url = new URL("http://localhost:8080/hadoop-auth/kerberos/who");
|
|
AuthenticatedURL.Token token = new AuthenticatedURL.Token();
|
|
...
|
|
HttpURLConnection conn = new AuthenticatedURL().openConnection(url, token);
|
|
...
|
|
conn = new AuthenticatedURL().openConnection(url, token);
|
|
...
|
|
</pre></div></div>
|
|
</section><section>
|
|
<h2><a name="Building_and_Running_the_Examples"></a>Building and Running the Examples</h2>
|
|
<p>Download Hadoop-Auth’s source code, the examples are in the <code>src/main/examples</code> directory.</p><section>
|
|
<h3><a name="Server_Example:"></a>Server Example:</h3>
|
|
<p>Edit the <code>hadoop-auth-examples/src/main/webapp/WEB-INF/web.xml</code> and set the right configuration init parameters for the <code>AuthenticationFilter</code> definition configured for Kerberos (the right Kerberos principal and keytab file must be specified). Refer to the <a href="./Configuration.html">Configuration document</a> for details.</p>
|
|
<p>Create the web application WAR file by running the <code>mvn package</code> command.</p>
|
|
<p>Deploy the WAR file in a servlet container. For example, if using Tomcat, copy the WAR file to Tomcat’s <code>webapps/</code> directory.</p>
|
|
<p>Start the servlet container.</p></section><section>
|
|
<h3><a name="Accessing_the_server_using_curl"></a>Accessing the server using <code>curl</code></h3>
|
|
<p>Try accessing protected resources using <code>curl</code>. The protected resources are:</p>
|
|
|
|
<div class="source">
|
|
<div class="source">
|
|
<pre>$ kinit
|
|
Please enter the password for tucu@LOCALHOST:
|
|
|
|
$ curl http://localhost:8080/hadoop-auth-examples/anonymous/who
|
|
|
|
$ curl http://localhost:8080/hadoop-auth-examples/simple/who?user.name=foo
|
|
|
|
$ curl --negotiate -u : -b ~/cookiejar.txt -c ~/cookiejar.txt http://$(hostname -f):8080/hadoop-auth-examples/kerberos/who
|
|
</pre></div></div>
|
|
</section><section>
|
|
<h3><a name="Accessing_the_server_using_the_Java_client_example"></a>Accessing the server using the Java client example</h3>
|
|
|
|
<div class="source">
|
|
<div class="source">
|
|
<pre>$ kinit
|
|
Please enter the password for tucu@LOCALHOST:
|
|
|
|
$ cd examples
|
|
|
|
$ mvn exec:java -Durl=http://localhost:8080/hadoop-auth-examples/kerberos/who
|
|
|
|
....
|
|
|
|
Token value: "u=tucu,p=tucu@LOCALHOST,t=kerberos,e=1295305313146,s=sVZ1mpSnC5TKhZQE3QLN5p2DWBo="
|
|
Status code: 200 OK
|
|
|
|
You are: user[tucu] principal[tucu@LOCALHOST]
|
|
|
|
....
|
|
</pre></div></div></section></section>
|
|
</div>
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