| /* |
| * 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.knox.gateway.filter.rewrite.impl; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.knox.gateway.filter.rewrite.api.UrlRewriteProcessor; |
| import org.apache.knox.gateway.filter.rewrite.api.UrlRewriteServletContextListener; |
| import org.apache.knox.gateway.filter.rewrite.api.UrlRewriteServletFilter; |
| import org.easymock.EasyMock; |
| import org.junit.Test; |
| |
| import javax.activation.MimeTypeParseException; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.util.List; |
| import java.util.zip.GZIPInputStream; |
| import java.util.zip.GZIPOutputStream; |
| |
| import static org.hamcrest.CoreMatchers.is; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.core.IsIterableContaining.hasItems; |
| |
| public class UrlRewriteResponseTest { |
| |
| @Test |
| public void testResolve() throws Exception { |
| |
| UrlRewriteProcessor rewriter = EasyMock.createNiceMock( UrlRewriteProcessor.class ); |
| |
| ServletContext context = EasyMock.createNiceMock( ServletContext.class ); |
| EasyMock.expect( context.getServletContextName() ).andReturn( "test-cluster-name" ).anyTimes(); |
| EasyMock.expect( context.getInitParameter( "test-init-param-name" ) ).andReturn( "test-init-param-value" ).anyTimes(); |
| EasyMock.expect( context.getAttribute( UrlRewriteServletContextListener.PROCESSOR_ATTRIBUTE_NAME ) ).andReturn( rewriter ).anyTimes(); |
| |
| FilterConfig config = EasyMock.createNiceMock( FilterConfig.class ); |
| EasyMock.expect( config.getInitParameter( "test-filter-init-param-name" ) ).andReturn( "test-filter-init-param-value" ).anyTimes(); |
| EasyMock.expect( config.getServletContext() ).andReturn( context ).anyTimes(); |
| |
| HttpServletRequest request = EasyMock.createNiceMock( HttpServletRequest.class ); |
| HttpServletResponse response = EasyMock.createNiceMock( HttpServletResponse.class ); |
| |
| EasyMock.replay( rewriter, context, config, request, response ); |
| |
| UrlRewriteResponse rewriteResponse = new UrlRewriteResponse( config, request, response ); |
| |
| List<String> names = rewriteResponse.resolve( "test-filter-init-param-name" ); |
| assertThat( names.size(), is( 1 ) ); |
| assertThat( names.get( 0 ), is( "test-filter-init-param-value" ) ); |
| } |
| |
| @Test |
| public void testResolveGatewayParams() throws Exception { |
| |
| UrlRewriteProcessor rewriter = EasyMock.createNiceMock( UrlRewriteProcessor.class ); |
| |
| ServletContext context = EasyMock.createNiceMock( ServletContext.class ); |
| EasyMock.expect( context.getAttribute( UrlRewriteServletContextListener.PROCESSOR_ATTRIBUTE_NAME ) ).andReturn( rewriter ).anyTimes(); |
| |
| FilterConfig config = EasyMock.createNiceMock( FilterConfig.class ); |
| EasyMock.expect( config.getServletContext() ).andReturn( context ).anyTimes(); |
| |
| HttpServletRequest request = EasyMock.createNiceMock( HttpServletRequest.class ); |
| EasyMock.expect( request.getScheme() ).andReturn( "mock-scheme" ).anyTimes(); |
| EasyMock.expect( request.getLocalName() ).andReturn( "mock-host" ).anyTimes(); |
| EasyMock.expect( request.getLocalPort() ).andReturn( 42 ).anyTimes(); |
| EasyMock.expect( request.getContextPath() ).andReturn( "/mock-path" ).anyTimes(); |
| HttpServletResponse response = EasyMock.createNiceMock( HttpServletResponse.class ); |
| |
| EasyMock.replay( rewriter, context, config, request, response ); |
| |
| UrlRewriteResponse rewriteResponse = new UrlRewriteResponse( config, request, response ); |
| |
| List<String> url = rewriteResponse.resolve( "gateway.url" ); |
| assertThat( url, hasItems( new String[]{ "mock-scheme://mock-host:42/mock-path" } ) ); |
| |
| List<String> scheme = rewriteResponse.resolve( "gateway.scheme" ); |
| assertThat( scheme, hasItems( new String[]{ "mock-scheme" } ) ); |
| |
| List<String> host = rewriteResponse.resolve( "gateway.host" ); |
| assertThat( host, hasItems( new String[]{ "mock-host" } ) ); |
| |
| List<String> port = rewriteResponse.resolve( "gateway.port" ); |
| assertThat( port, hasItems( new String[]{ "42" } ) ); |
| |
| List<String> addr = rewriteResponse.resolve( "gateway.addr" ); |
| assertThat( addr, hasItems( new String[]{ "mock-host:42" } ) ); |
| |
| List<String> address = rewriteResponse.resolve( "gateway.addr" ); |
| assertThat( address, hasItems( new String[]{ "mock-host:42" } ) ); |
| |
| List<String> path = rewriteResponse.resolve( "gateway.path" ); |
| assertThat( path, hasItems( new String[]{ "/mock-path" } ) ); |
| } |
| |
| @Test |
| public void testStreamResponse() throws IOException, MimeTypeParseException { |
| UrlRewriteProcessor rewriter = EasyMock.createNiceMock( UrlRewriteProcessor.class ); |
| EasyMock.expect( rewriter.getConfig() ).andReturn( null ).anyTimes(); |
| |
| ServletContext context = EasyMock.createNiceMock( ServletContext.class ); |
| EasyMock.expect( context.getAttribute( UrlRewriteServletContextListener.PROCESSOR_ATTRIBUTE_NAME ) ).andReturn( rewriter ).anyTimes(); |
| |
| FilterConfig config = EasyMock.createNiceMock( FilterConfig.class ); |
| EasyMock.expect( config.getInitParameter( UrlRewriteServletFilter.RESPONSE_BODY_FILTER_PARAM ) ).andReturn( "test-filter" ).anyTimes(); |
| EasyMock.expect( config.getServletContext() ).andReturn( context ).anyTimes(); |
| |
| HttpServletRequest request = EasyMock.createNiceMock( HttpServletRequest.class ); |
| HttpServletResponse response = EasyMock.createNiceMock( HttpServletResponse.class ); |
| |
| EasyMock.replay( rewriter, context, config, request, response ); |
| |
| UrlRewriteResponse rewriteResponse = new UrlRewriteResponse( config, request, response ); |
| |
| String content = "content to test gzip streaming"; |
| testStreamResponseGzip ( content, rewriteResponse, false ); |
| testStreamResponseGzip ( content, rewriteResponse, true ); |
| } |
| |
| private void testStreamResponseGzip( String content, UrlRewriteResponse rewriteResponse , boolean isGzip ) throws IOException { |
| File targetDir = new File( System.getProperty( "user.dir" ), "target" ); |
| File inputFile = new File( targetDir, "input.test" ); |
| File outputFile = new File( targetDir, "output.test" ); |
| try (OutputStream outputStream = Files.newOutputStream(inputFile.toPath())) { |
| try(OutputStream outStream = isGzip ? new GZIPOutputStream( outputStream ) : outputStream) { |
| outStream.write(content.getBytes(StandardCharsets.UTF_8)); |
| } |
| |
| try(InputStream input = Files.newInputStream(inputFile.toPath()); |
| OutputStream output = Files.newOutputStream(outputFile.toPath())){ |
| |
| rewriteResponse.streamResponse(input, output); |
| } |
| |
| try(InputStream inputStream = Files.newInputStream(outputFile.toPath()); |
| InputStream inStream = isGzip ? new GZIPInputStream(inputStream) : inputStream) { |
| assertThat(String.valueOf(IOUtils.toCharArray(inStream, StandardCharsets.UTF_8)), is(content)); |
| } |
| } finally { |
| inputFile.delete(); |
| outputFile.delete(); |
| } |
| } |
| } |