diff options
Diffstat (limited to 'sql/hive-thriftserver/src/main/java/org/apache/hive/service/auth/TSubjectAssumingTransport.java')
-rw-r--r-- | sql/hive-thriftserver/src/main/java/org/apache/hive/service/auth/TSubjectAssumingTransport.java | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sql/hive-thriftserver/src/main/java/org/apache/hive/service/auth/TSubjectAssumingTransport.java b/sql/hive-thriftserver/src/main/java/org/apache/hive/service/auth/TSubjectAssumingTransport.java new file mode 100644 index 0000000000..2422e86c6b --- /dev/null +++ b/sql/hive-thriftserver/src/main/java/org/apache/hive/service/auth/TSubjectAssumingTransport.java @@ -0,0 +1,70 @@ +/** + * 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.hive.service.auth; + +import java.security.AccessControlContext; +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; +import javax.security.auth.Subject; + +import org.apache.hadoop.hive.thrift.TFilterTransport; +import org.apache.thrift.transport.TTransport; +import org.apache.thrift.transport.TTransportException; + +/** + * This is used on the client side, where the API explicitly opens a transport to + * the server using the Subject.doAs(). + */ +public class TSubjectAssumingTransport extends TFilterTransport { + + public TSubjectAssumingTransport(TTransport wrapped) { + super(wrapped); + } + + @Override + public void open() throws TTransportException { + try { + AccessControlContext context = AccessController.getContext(); + Subject subject = Subject.getSubject(context); + Subject.doAs(subject, new PrivilegedExceptionAction<Void>() { + public Void run() { + try { + wrapped.open(); + } catch (TTransportException tte) { + // Wrap the transport exception in an RTE, since Subject.doAs() then goes + // and unwraps this for us out of the doAs block. We then unwrap one + // more time in our catch clause to get back the TTE. (ugh) + throw new RuntimeException(tte); + } + return null; + } + }); + } catch (PrivilegedActionException ioe) { + throw new RuntimeException("Received an ioe we never threw!", ioe); + } catch (RuntimeException rte) { + if (rte.getCause() instanceof TTransportException) { + throw (TTransportException) rte.getCause(); + } else { + throw rte; + } + } + } + +} |