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.obfuscate; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.util.*; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.visitor.*; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.io.PrintStream; 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This ClassVisitor prints out the renamed classes and class members with 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * their old names and new names. 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @see ClassRenamer 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class MappingPrinter 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends SimplifiedVisitor 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimplements ClassVisitor, 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato MemberVisitor 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final PrintStream ps; 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new MappingPrinter that prints to <code>System.out</code>. 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public MappingPrinter() 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this(System.out); 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new MappingPrinter that prints to the given stream. 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param printStream the stream to which to print 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public MappingPrinter(PrintStream printStream) 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.ps = printStream; 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for ClassVisitor. 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramClass(ProgramClass programClass) 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String name = programClass.getName(); 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String newName = ClassObfuscator.newClassName(programClass); 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ps.println(ClassUtil.externalClassName(name) + 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato " -> " + 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassUtil.externalClassName(newName) + 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ":"); 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Print out the class members. 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programClass.fieldsAccept(this); 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programClass.methodsAccept(this); 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitLibraryClass(LibraryClass libraryClass) 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for MemberVisitor. 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramField(ProgramClass programClass, ProgramField programField) 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String newName = MemberObfuscator.newMemberName(programField); 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (newName != null) 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ps.println(" " + 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato //lineNumberRange(programClass, programField) + 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassUtil.externalFullFieldDescription( 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 0, 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.getName(programClass), 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.getDescriptor(programClass)) + 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato " -> " + 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newName); 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Special cases: <clinit> and <init> are always kept unchanged. 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // We can ignore them here. 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String name = programMethod.getName(programClass); 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (name.equals(ClassConstants.INTERNAL_METHOD_NAME_CLINIT) || 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato name.equals(ClassConstants.INTERNAL_METHOD_NAME_INIT)) 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return; 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String newName = MemberObfuscator.newMemberName(programMethod); 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (newName != null) 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ps.println(" " + 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato lineNumberRange(programClass, programMethod) + 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassUtil.externalFullMethodDescription( 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programClass.getName(), 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 0, 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.getName(programClass), 127b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.getDescriptor(programClass)) + 128b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato " -> " + 129b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newName); 130b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 131b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 134b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Small utility methods. 135b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 136b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 137b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Returns the line number range of the given class member, followed by a 138b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * colon, or just an empty String if no range is available. 139b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 140b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static String lineNumberRange(ProgramClass programClass, ProgramMember programMember) 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 142b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String range = programMember.getLineNumberRange(programClass); 143b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return range != null ? 144b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (range + ":") : 145b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ""; 146b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 147b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 148