| /* |
| * Copyright 2014, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.jf.dexlib2.rewriter; |
| |
| import org.jf.dexlib2.iface.*; |
| import org.jf.dexlib2.iface.debug.DebugItem; |
| import org.jf.dexlib2.iface.instruction.Instruction; |
| import org.jf.dexlib2.iface.reference.FieldReference; |
| import org.jf.dexlib2.iface.reference.MethodReference; |
| import org.jf.dexlib2.iface.value.EncodedValue; |
| |
| import javax.annotation.Nonnull; |
| import java.util.Set; |
| |
| /** |
| * Out-of-the box, this class does nothing except make a picture-perfect copy of a dex file. |
| * |
| * However, it provides many points where you can hook into this process and selectively modify |
| * the dex file. For example, If you want to rename all instances (including definitions and references) |
| * of the class Lorg/blah/MyBlah; to Lorg/blah/YourBlah; |
| * |
| * <pre> |
| * {@code |
| * DexRewriter rewriter = new DexRewriter(new RewriterModule() { |
| * public Rewriter<String> getTypeRewriter(Rewriters rewriters) { |
| * return new Rewriter<String>() { |
| * public String rewrite(String value) { |
| * if (value.equals("Lorg/blah/MyBlah;")) { |
| * return "Lorg/blah/YourBlah;"; |
| * } |
| * return value; |
| * } |
| * }; |
| * } |
| * }); |
| * DexFile rewrittenDexFile = rewriter.rewriteDexFile(dexFile); |
| * } |
| * </pre> |
| */ |
| public class DexRewriter implements Rewriters { |
| private final Rewriter<ClassDef> classDefRewriter; |
| private final Rewriter<Field> fieldRewriter; |
| private final Rewriter<Method> methodRewriter; |
| private final Rewriter<MethodParameter> methodParameterRewriter; |
| private final Rewriter<MethodImplementation> methodImplementationRewriter; |
| private final Rewriter<Instruction> instructionRewriter; |
| private final Rewriter<TryBlock<? extends ExceptionHandler>> tryBlockRewriter; |
| private final Rewriter<ExceptionHandler> exceptionHandlerRewriter; |
| private final Rewriter<DebugItem> debugItemRewriter; |
| private final Rewriter<String> typeRewriter; |
| private final Rewriter<FieldReference> fieldReferenceRewriter; |
| private final Rewriter<MethodReference> methodReferenceRewriter; |
| private final Rewriter<Annotation> annotationRewriter; |
| private final Rewriter<AnnotationElement> annotationElementRewriter; |
| private final Rewriter<EncodedValue> encodedValueRewriter; |
| |
| public DexRewriter(RewriterModule module) { |
| this.classDefRewriter = module.getClassDefRewriter(this); |
| this.fieldRewriter = module.getFieldRewriter(this); |
| this.methodRewriter = module.getMethodRewriter(this); |
| this.methodParameterRewriter = module.getMethodParameterRewriter(this); |
| this.methodImplementationRewriter = module.getMethodImplementationRewriter(this); |
| this.instructionRewriter = module.getInstructionRewriter(this); |
| this.tryBlockRewriter = module.getTryBlockRewriter(this); |
| this.exceptionHandlerRewriter = module.getExceptionHandlerRewriter(this); |
| this.debugItemRewriter = module.getDebugItemRewriter(this); |
| this.typeRewriter = module.getTypeRewriter(this); |
| this.fieldReferenceRewriter = module.getFieldReferenceRewriter(this); |
| this.methodReferenceRewriter = module.getMethodReferenceRewriter(this); |
| this.annotationRewriter = module.getAnnotationRewriter(this); |
| this.annotationElementRewriter = module.getAnnotationElementRewriter(this); |
| this.encodedValueRewriter = module.getEncodedValueRewriter(this); |
| } |
| |
| @Nonnull |
| public DexFile rewriteDexFile(@Nonnull DexFile dexFile) { |
| return new RewrittenDexFile(dexFile); |
| } |
| |
| protected class RewrittenDexFile implements DexFile { |
| @Nonnull protected final DexFile dexFile; |
| |
| public RewrittenDexFile(@Nonnull DexFile dexFile) { |
| this.dexFile = dexFile; |
| } |
| |
| @Override @Nonnull public Set<? extends ClassDef> getClasses() { |
| return RewriterUtils.rewriteSet(getClassDefRewriter(), dexFile.getClasses()); |
| } |
| } |
| |
| @Nonnull @Override public Rewriter<ClassDef> getClassDefRewriter() { return classDefRewriter; } |
| @Nonnull @Override public Rewriter<Field> getFieldRewriter() { return fieldRewriter; } |
| @Nonnull @Override public Rewriter<Method> getMethodRewriter() { return methodRewriter; } |
| @Nonnull @Override public Rewriter<MethodParameter> getMethodParameterRewriter() { return methodParameterRewriter; } |
| @Nonnull @Override public Rewriter<MethodImplementation> getMethodImplementationRewriter() { return methodImplementationRewriter; } |
| @Nonnull @Override public Rewriter<Instruction> getInstructionRewriter() { return instructionRewriter; } |
| @Nonnull @Override public Rewriter<TryBlock<? extends ExceptionHandler>> getTryBlockRewriter() { return tryBlockRewriter; } |
| @Nonnull @Override public Rewriter<ExceptionHandler> getExceptionHandlerRewriter() { return exceptionHandlerRewriter; } |
| @Nonnull @Override public Rewriter<DebugItem> getDebugItemRewriter() { return debugItemRewriter; } |
| @Nonnull @Override public Rewriter<String> getTypeRewriter() { return typeRewriter; } |
| @Nonnull @Override public Rewriter<FieldReference> getFieldReferenceRewriter() { return fieldReferenceRewriter; } |
| @Nonnull @Override public Rewriter<MethodReference> getMethodReferenceRewriter() { return methodReferenceRewriter; } |
| @Nonnull @Override public Rewriter<Annotation> getAnnotationRewriter() { return annotationRewriter; } |
| @Nonnull @Override public Rewriter<AnnotationElement> getAnnotationElementRewriter() { return annotationElementRewriter; } |
| @Nonnull @Override public Rewriter<EncodedValue> getEncodedValueRewriter() { return encodedValueRewriter; } |
| } |