[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.hadoop.http; |
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| 19 | |
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| 20 | import java.io.BufferedReader; |
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| 21 | import java.io.IOException; |
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| 22 | import java.io.InputStreamReader; |
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| 23 | import java.net.URL; |
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| 24 | import java.net.URLConnection; |
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| 25 | import java.util.Set; |
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| 26 | import java.util.TreeSet; |
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| 27 | |
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| 28 | import javax.servlet.Filter; |
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| 29 | import javax.servlet.FilterChain; |
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| 30 | import javax.servlet.FilterConfig; |
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| 31 | import javax.servlet.ServletException; |
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| 32 | import javax.servlet.ServletRequest; |
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| 33 | import javax.servlet.ServletResponse; |
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| 34 | import javax.servlet.http.HttpServletRequest; |
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| 35 | |
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| 36 | import org.apache.commons.logging.Log; |
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| 37 | import org.apache.commons.logging.LogFactory; |
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| 38 | import org.apache.hadoop.conf.Configuration; |
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| 39 | |
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| 40 | public class TestGlobalFilter extends junit.framework.TestCase { |
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| 41 | static final Log LOG = LogFactory.getLog(HttpServer.class); |
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| 42 | static final Set<String> RECORDS = new TreeSet<String>(); |
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| 43 | |
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| 44 | /** A very simple filter that records accessed uri's */ |
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| 45 | static public class RecordingFilter implements Filter { |
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| 46 | private FilterConfig filterConfig = null; |
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| 47 | |
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| 48 | public void init(FilterConfig filterConfig) { |
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| 49 | this.filterConfig = filterConfig; |
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| 50 | } |
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| 51 | |
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| 52 | public void destroy() { |
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| 53 | this.filterConfig = null; |
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| 54 | } |
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| 55 | |
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| 56 | public void doFilter(ServletRequest request, ServletResponse response, |
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| 57 | FilterChain chain) throws IOException, ServletException { |
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| 58 | if (filterConfig == null) |
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| 59 | return; |
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| 60 | |
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| 61 | String uri = ((HttpServletRequest)request).getRequestURI(); |
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| 62 | LOG.info("filtering " + uri); |
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| 63 | RECORDS.add(uri); |
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| 64 | chain.doFilter(request, response); |
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| 65 | } |
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| 66 | |
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| 67 | /** Configuration for RecordingFilter */ |
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| 68 | static public class Initializer extends FilterInitializer { |
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| 69 | public Initializer() {} |
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| 70 | |
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| 71 | void initFilter(FilterContainer container) { |
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| 72 | container.addGlobalFilter("recording", RecordingFilter.class.getName(), null); |
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| 73 | } |
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| 74 | } |
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| 75 | } |
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| 76 | |
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| 77 | |
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| 78 | /** access a url, ignoring some IOException such as the page does not exist */ |
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| 79 | static void access(String urlstring) throws IOException { |
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| 80 | LOG.warn("access " + urlstring); |
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| 81 | URL url = new URL(urlstring); |
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| 82 | URLConnection connection = url.openConnection(); |
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| 83 | connection.connect(); |
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| 84 | |
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| 85 | try { |
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| 86 | BufferedReader in = new BufferedReader(new InputStreamReader( |
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| 87 | connection.getInputStream())); |
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| 88 | try { |
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| 89 | for(; in.readLine() != null; ); |
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| 90 | } finally { |
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| 91 | in.close(); |
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| 92 | } |
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| 93 | } catch(IOException ioe) { |
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| 94 | LOG.warn("urlstring=" + urlstring, ioe); |
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| 95 | } |
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| 96 | } |
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| 97 | |
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| 98 | public void testServletFilter() throws Exception { |
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| 99 | Configuration conf = new Configuration(); |
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| 100 | |
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| 101 | //start a http server with CountingFilter |
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| 102 | conf.set(HttpServer.FILTER_INITIALIZER_PROPERTY, |
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| 103 | RecordingFilter.Initializer.class.getName()); |
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| 104 | HttpServer http = new HttpServer("datanode", "localhost", 0, true, conf); |
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| 105 | http.start(); |
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| 106 | |
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| 107 | final String fsckURL = "/fsck"; |
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| 108 | final String stacksURL = "/stacks"; |
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| 109 | final String ajspURL = "/a.jsp"; |
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| 110 | final String listPathsURL = "/listPaths"; |
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| 111 | final String dataURL = "/data"; |
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| 112 | final String streamFile = "/streamFile"; |
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| 113 | final String rootURL = "/"; |
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| 114 | final String allURL = "/*"; |
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| 115 | final String outURL = "/static/a.out"; |
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| 116 | final String logURL = "/logs/a.log"; |
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| 117 | |
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| 118 | final String[] urls = {fsckURL, stacksURL, ajspURL, listPathsURL, |
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| 119 | dataURL, streamFile, rootURL, allURL, outURL, logURL}; |
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| 120 | |
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| 121 | //access the urls |
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| 122 | final String prefix = "http://localhost:" + http.getPort(); |
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| 123 | try { |
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| 124 | for(int i = 0; i < urls.length; i++) { |
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| 125 | access(prefix + urls[i]); |
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| 126 | } |
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| 127 | } finally { |
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| 128 | http.stop(); |
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| 129 | } |
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| 130 | |
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| 131 | LOG.info("RECORDS = " + RECORDS); |
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| 132 | |
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| 133 | //verify records |
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| 134 | for(int i = 0; i < urls.length; i++) { |
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| 135 | assertTrue(RECORDS.remove(urls[i])); |
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| 136 | } |
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| 137 | assertTrue(RECORDS.isEmpty()); |
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| 138 | } |
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| 139 | } |
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