1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.io.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.util.*; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.util.List; 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This class can create DataEntryWriter instances based on class paths. The 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * writers will wrap the output in the proper jars, wars, ears, and zips. 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class DataEntryWriterFactory 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a DataEntryWriter that can write to the given class path entries. 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param classPath the output class path. 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param fromIndex the start index in the class path. 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param toIndex the end index in the class path. 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @return a DataEntryWriter for writing to the given class path entries. 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public static DataEntryWriter createDataEntryWriter(ClassPath classPath, 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int fromIndex, 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int toIndex) 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato DataEntryWriter writer = null; 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Create a chain of writers, one for each class path entry. 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int index = toIndex - 1; index >= fromIndex; index--) 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassPathEntry entry = classPath.get(index); 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = createClassPathEntryWriter(entry, writer); 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return writer; 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a DataEntryWriter that can write to the given class path entry, 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * or delegate to another DataEntryWriter if its filters don't match. 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static DataEntryWriter createClassPathEntryWriter(ClassPathEntry classPathEntry, 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato DataEntryWriter alternativeWriter) 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String entryName = classPathEntry.getName(); 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean isJar = endsWithIgnoreCase(entryName, ".jar"); 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean isWar = endsWithIgnoreCase(entryName, ".war"); 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean isEar = endsWithIgnoreCase(entryName, ".ear"); 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean isZip = endsWithIgnoreCase(entryName, ".zip"); 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List filter = classPathEntry.getFilter(); 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List jarFilter = classPathEntry.getJarFilter(); 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List warFilter = classPathEntry.getWarFilter(); 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List earFilter = classPathEntry.getEarFilter(); 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List zipFilter = classPathEntry.getZipFilter(); 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("Preparing output " + 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (isJar ? "jar" : 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isWar ? "war" : 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isEar ? "ear" : 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isZip ? "zip" : 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato "directory") + 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato " [" + entryName + "]" + 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (filter != null || 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato jarFilter != null || 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato warFilter != null || 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato earFilter != null || 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato zipFilter != null ? " (filtered)" : "")); 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato DataEntryWriter writer = new DirectoryWriter(classPathEntry.getFile(), 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isJar || 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isWar || 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isEar || 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isZip); 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Set up the filtered jar writers. 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = wrapInJarWriter(writer, isZip, zipFilter, ".zip", isJar || isWar || isEar); 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = wrapInJarWriter(writer, isEar, earFilter, ".ear", isJar || isWar); 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = wrapInJarWriter(writer, isWar, warFilter, ".war", isJar); 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = wrapInJarWriter(writer, isJar, jarFilter, ".jar", false); 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Add a filter, if specified. 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer = filter != null? 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new FilteredDataEntryWriter( 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new DataEntryNameFilter( 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ListParser(new FileNameParser()).parse(filter)), 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer) : 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer; 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Let the writer cascade, if specified. 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return alternativeWriter != null ? 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new CascadingDataEntryWriter(writer, alternativeWriter) : 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato writer; 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Wraps the given DataEntryWriter in a JarWriter, filtering if necessary. 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static DataEntryWriter wrapInJarWriter(DataEntryWriter writer, 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean isJar, 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List jarFilter, 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String jarExtension, 127b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean dontWrap) 128b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 129b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Zip up jars, if necessary. 130b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato DataEntryWriter jarWriter = dontWrap ? 131b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (DataEntryWriter)new ParentDataEntryWriter(writer) : 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (DataEntryWriter)new JarWriter(writer); 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 134b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Add a filter, if specified. 135b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato DataEntryWriter filteredJarWriter = jarFilter != null? 136b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new FilteredDataEntryWriter( 137b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new DataEntryParentFilter( 138b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new DataEntryNameFilter( 139b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ListParser(new FileNameParser()).parse(jarFilter))), 140b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato jarWriter) : 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato jarWriter; 142b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 143b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Only zip up jars, unless the output is a jar file itself. 144b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return new FilteredDataEntryWriter( 145b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new DataEntryParentFilter( 146b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new DataEntryNameFilter( 147b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ExtensionMatcher(jarExtension))), 148b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato filteredJarWriter, 149b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato isJar ? jarWriter : writer); 150b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 151b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 152b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 153b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 154b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Returns whether the given string ends with the given suffix, ignoring its 155b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * case. 156b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 157b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static boolean endsWithIgnoreCase(String string, String suffix) 158b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 159b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int stringLength = string.length(); 160b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int suffixLength = suffix.length(); 161b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 162b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return string.regionMatches(true, stringLength - suffixLength, suffix, 0, suffixLength); 163b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 164b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 165