Showing the changes to java/pkg/sun/net/www/http/HttpCapture.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.net.www.http; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.util.ArrayList; | |
| 30 | +import java.util.regex.*; | |
| 31 | +import sun.net.NetProperties; | |
| 32 | +import sun.util.logging.PlatformLogger; | |
| 33 | + | |
| 34 | +/** | |
| 35 | + * Main class of the HTTP traffic capture tool. | |
| 36 | + * Captures are triggered by the sun.net.http.captureRules system property. | |
| 37 | + * If set, it should point to a file containing the capture rules. | |
| 38 | + * Format for the file is simple: | |
| 39 | + * - 1 rule per line | |
| 40 | + * - Lines starting with a # are considered comments and ignored | |
| 41 | + * - a rule is a pair of a regular expression and file pattern, separated by a comma | |
| 42 | + * - The regular expression is applied to URLs, if it matches, the traffic for | |
| 43 | + * that URL will be captured in the associated file. | |
| 44 | + * - if the file name contains a '%d', then that sequence will be replaced by a | |
| 45 | + * unique random number for each URL. This allow for multi-threaded captures | |
| 46 | + * of URLs matching the same pattern. | |
| 47 | + * - Rules are checked in sequence, in the same order as in the file, until a | |
| 48 | + * match is found or the end of the list is reached. | |
| 49 | + * | |
| 50 | + * Examples of rules: | |
| 51 | + * www\.sun\.com , sun%d.log | |
| 52 | + * yahoo\.com\/.*asf , yahoo.log | |
| 53 | + * | |
| 54 | + * @author jccollet | |
| 55 | + */ | |
| 56 | +public class HttpCapture { | |
| 57 | + private File file = null; | |
| 58 | + private boolean incoming = true; | |
| 59 | + private BufferedWriter out = null; | |
| 60 | + private static boolean initialized = false; | |
| 61 | + private static volatile ArrayList<Pattern> patterns = null; | |
| 62 | + private static volatile ArrayList<String> capFiles = null; | |
| 63 | + | |
| 64 | + private static synchronized void init() { | |
| 65 | + initialized = true; | |
| 66 | + String rulesFile = java.security.AccessController.doPrivileged( | |
| 67 | + new java.security.PrivilegedAction<String>() { | |
| 68 | + public String run() { | |
| 69 | + return NetProperties.get("sun.net.http.captureRules"); | |
| 70 | + } | |
| 71 | + }); | |
| 72 | + if (rulesFile != null && !rulesFile.isEmpty()) { | |
| 73 | + BufferedReader in; | |
| 74 | + try { | |
| 75 | + in = new BufferedReader(new FileReader(rulesFile)); | |
| 76 | + } catch (FileNotFoundException ex) { | |
| 77 | + return; | |
| 78 | + } | |
| 79 | + try { | |
| 80 | + String line = in.readLine(); | |
| 81 | + while (line != null) { | |
| 82 | + line = line.trim(); | |
| 83 | + if (!line.startsWith("#")) { | |
| 84 | + // skip line if it's a comment | |
| 85 | + String[] s = line.split(","); | |
| 86 | + if (s.length == 2) { | |
| 87 | + if (patterns == null) { | |
| 88 | + patterns = new ArrayList<Pattern>(); | |
| 89 | + capFiles = new ArrayList<String>(); | |
| 90 | + } | |
| 91 | + patterns.add(Pattern.compile(s[0].trim())); | |
| 92 | + capFiles.add(s[1].trim()); | |
| 93 | + } | |
| 94 | + } | |
| 95 | + line = in.readLine(); | |
| 96 | + } | |
| 97 | + } catch (IOException ioe) { | |
| 98 | + | |
| 99 | + } finally { | |
| 100 | + try { | |
| 101 | + in.close(); | |
| 102 | + } catch (IOException ex) { | |
| 103 | + } | |
| 104 | + } | |
| 105 | + } | |
| 106 | + } | |
| 107 | + | |
| 108 | + private static synchronized boolean isInitialized() { | |
| 109 | + return initialized; | |
| 110 | + } | |
| 111 | + | |
| 112 | + private HttpCapture(File f, java.net.URL url) { | |
| 113 | + file = f; | |
| 114 | + try { | |
| 115 | + out = new BufferedWriter(new FileWriter(file, true)); | |
| 116 | + out.write("URL: " + url + "\n"); | |
| 117 | + } catch (IOException ex) { | |
| 118 | + PlatformLogger.getLogger(HttpCapture.class.getName()).severe(null, ex); | |
| 119 | + } | |
| 120 | + } | |
| 121 | + | |
| 122 | + public synchronized void sent(int c) throws IOException { | |
| 123 | + if (incoming) { | |
| 124 | + out.write("\n------>\n"); | |
| 125 | + incoming = false; | |
| 126 | + out.flush(); | |
| 127 | + } | |
| 128 | + out.write(c); | |
| 129 | + } | |
| 130 | + | |
| 131 | + public synchronized void received(int c) throws IOException { | |
| 132 | + if (!incoming) { | |
| 133 | + out.write("\n<------\n"); | |
| 134 | + incoming = true; | |
| 135 | + out.flush(); | |
| 136 | + } | |
| 137 | + out.write(c); | |
| 138 | + } | |
| 139 | + | |
| 140 | + public synchronized void flush() throws IOException { | |
| 141 | + out.flush(); | |
| 142 | + } | |
| 143 | + | |
| 144 | + public static HttpCapture getCapture(java.net.URL url) { | |
| 145 | + if (!isInitialized()) { | |
| 146 | + init(); | |
| 147 | + } | |
| 148 | + if (patterns == null || patterns.isEmpty()) { | |
| 149 | + return null; | |
| 150 | + } | |
| 151 | + String s = url.toString(); | |
| 152 | + for (int i = 0; i < patterns.size(); i++) { | |
| 153 | + Pattern p = patterns.get(i); | |
| 154 | + if (p.matcher(s).find()) { | |
| 155 | + String f = capFiles.get(i); | |
| 156 | + File fi; | |
| 157 | + if (f.indexOf("%d") >= 0) { | |
| 158 | + java.util.Random rand = new java.util.Random(); | |
| 159 | + do { | |
| 160 | + String f2 = f.replace("%d", Integer.toString(rand.nextInt())); | |
| 161 | + fi = new File(f2); | |
| 162 | + } while (fi.exists()); | |
| 163 | + } else { | |
| 164 | + fi = new File(f); | |
| 165 | + } | |
| 166 | + return new HttpCapture(fi, url); | |
| 167 | + } | |
| 168 | + } | |
| 169 | + return null; | |
| 170 | + } | |
| 171 | +} | |