org.apache.hadoop.gateway.dispatch.HttpClientDispatchTest.java Source code

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Here is the source code for org.apache.hadoop.gateway.dispatch.HttpClientDispatchTest.java

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/**
 * 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.gateway.dispatch;

import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.UnknownHostException;

import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.hadoop.gateway.config.GatewayConfig;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.params.BasicHttpParams;
import org.easymock.EasyMock;
import org.easymock.IAnswer;
import org.junit.Test;

public class HttpClientDispatchTest {

    // Make sure Hadoop cluster topology isn't exposed to client when there is a connectivity issue.
    @Test
    public void testJiraKnox58() throws URISyntaxException, IOException {

        URI uri = new URI("http://unreachable-host");
        BasicHttpParams params = new BasicHttpParams();

        HttpUriRequest outboundRequest = EasyMock.createNiceMock(HttpUriRequest.class);
        EasyMock.expect(outboundRequest.getMethod()).andReturn("GET").anyTimes();
        EasyMock.expect(outboundRequest.getURI()).andReturn(uri).anyTimes();
        EasyMock.expect(outboundRequest.getParams()).andReturn(params).anyTimes();

        HttpServletRequest inboundRequest = EasyMock.createNiceMock(HttpServletRequest.class);

        HttpServletResponse outboundResponse = EasyMock.createNiceMock(HttpServletResponse.class);
        EasyMock.expect(outboundResponse.getOutputStream()).andAnswer(new IAnswer<ServletOutputStream>() {
            @Override
            public ServletOutputStream answer() throws Throwable {
                return new ServletOutputStream() {
                    @Override
                    public void write(int b) throws IOException {
                        throw new IOException("unreachable-host");
                    }
                };
            }
        });

        EasyMock.replay(outboundRequest, inboundRequest, outboundResponse);

        HttpClientDispatch dispatch = new HttpClientDispatch();
        try {
            dispatch.executeRequest(outboundRequest, inboundRequest, outboundResponse);
            fail("Should have thrown IOException");
        } catch (IOException e) {
            assertThat(e.getMessage(), not(containsString("unreachable-host")));
            assertThat(e, not(instanceOf(UnknownHostException.class)));
            assertThat("Message needs meaningful content.", e.getMessage().trim().length(), greaterThan(12));
        }
    }

    @Test
    public void testCallToSecureClusterWithDelegationTpken() throws URISyntaxException, IOException {
        System.setProperty(GatewayConfig.HADOOP_KERBEROS_SECURED, "true");
        HttpClientDispatch httpClientDispatch = new HttpClientDispatch();
        ServletInputStream inputStream = EasyMock.createNiceMock(ServletInputStream.class);
        HttpServletRequest inboundRequest = EasyMock.createNiceMock(HttpServletRequest.class);
        EasyMock.expect(inboundRequest.getQueryString()).andReturn("delegation=123").anyTimes();
        EasyMock.expect(inboundRequest.getInputStream()).andReturn(inputStream).anyTimes();
        EasyMock.replay(inboundRequest);
        HttpEntity httpEntity = httpClientDispatch.createRequestEntity(inboundRequest);
        System.setProperty(GatewayConfig.HADOOP_KERBEROS_SECURED, "false");
        assertFalse("buffering in the presence of delegation token",
                (httpEntity instanceof CappedBufferHttpEntity));
    }

    @Test
    public void testCallToSecureClusterWithoutDelegationTpken() throws URISyntaxException, IOException {
        System.setProperty(GatewayConfig.HADOOP_KERBEROS_SECURED, "true");
        HttpClientDispatch httpClientDispatch = new HttpClientDispatch();
        httpClientDispatch.setReplayBufferSize(10);
        ServletInputStream inputStream = EasyMock.createNiceMock(ServletInputStream.class);
        HttpServletRequest inboundRequest = EasyMock.createNiceMock(HttpServletRequest.class);
        EasyMock.expect(inboundRequest.getQueryString()).andReturn("a=123").anyTimes();
        EasyMock.expect(inboundRequest.getInputStream()).andReturn(inputStream).anyTimes();
        EasyMock.replay(inboundRequest);
        HttpEntity httpEntity = httpClientDispatch.createRequestEntity(inboundRequest);
        System.setProperty(GatewayConfig.HADOOP_KERBEROS_SECURED, "false");
        assertTrue("not buffering in the absence of delegation token",
                (httpEntity instanceof CappedBufferHttpEntity));
    }

}