android基于分包策略的修复demo.zip

/* * Copyright (C) 2015 Baidu, Inc. All Rights Reserved. */ package hotfix.test.com.example.didi.applicationtesthotfix; import java.io.File; import java.io.PrintWriter; import java.io.StringWriter; import java.lang.reflect.Array; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import android.annotation.TargetApi; import android.content.Context; import android.util.Log; import javax.security.auth.login.LoginException; import dalvik.system.DexClassLoader; import dalvik.system.PathClassLoader; /* compiled from: ProGuard */ public final class HotFix { HotFix(){ Log.e("Ruby", Anti.class.getName()); } static ClassLoader path; static ClassLoader first; static ClassLoader second; static boolean isFirst; public static void patch(Context context, String patchDexFile, String patchClassName) { if (patchDexFile != null && new File(patchDexFile).exists()) { try { Log.e("Ruby", "0000"); if (hasLexClassLoader()) { Log.e("Ruby", "1111"); injectInAliyunOs(context, patchDexFile, patchClassName); } else if (hasDexClassLoader()) { Log.e("Ruby", "2222"); injectAboveEqualApiLevel14(context, patchDexFile, patchClassName); } else { Log.e("Ruby", "3333"); injectBelowApiLevel14(context, patchDexFile, patchClassName); } } catch (Exception e) { Log.e("Ruby", getStackTrace(e)); } } } private static boolean hasLexClassLoader() { try { Class.forName("dalvik.system.LexClassLoader"); return true; } catch (ClassNotFoundException e) { return false; } } private static boolean hasDexClassLoader() { try { Class.forName("dalvik.system.BaseDexClassLoader"); return true; } catch (ClassNotFoundException e) { return false; } } private static void injectInAliyunOs(Context context, String patchDexFile, String patchClassName) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchFieldException { PathClassLoader obj = (PathClassLoader) context.getClassLoader(); String replaceAll = new File(patchDexFile).getName().replaceAll("\\.[a-zA-Z0-9]+", ".lex"); Class cls = Class.forName("dalvik.system.LexClassLoader"); Object newInstance = cls.getConstructor(new Class[]{String.class, String.class, String.class, ClassLoader.class}).newInstance( new Object[]{context.getDir("dex", 0).getAbsolutePath() + File.separator + replaceAll, context.getDir("dex", 0).getAbsolutePath(), patchDexFile, obj}); cls.getMethod("loadClass", new Class[]{String.class}).invoke(newInstance, new Object[]{patchClassName}); setField(obj, PathClassLoader.class, "mPaths", appendArray(getField(obj, PathClassLoader.class, "mPaths"), getField(newInstance, cls, "mRawDexPath"))); setField(obj, PathClassLoader.class, "mFiles", combineArray(getField(obj, PathClassLoader.class, "mFiles"), getField(newInstance, cls, "mFiles"))); setField(obj, PathClassLoader.class, "mZips", combineArray(getField(obj, PathClassLoader.class, "mZips"), getField(newInstance, cls, "mZips"))); setField(obj, PathClassLoader.class, "mLexs", combineArray(getField(obj, PathClassLoader.class, "mLexs"), getField(newInstance, cls, "mDexs"))); } @TargetApi(14) private static void injectBelowApiLevel14(Context context, String str, String str2) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException { PathClassLoader obj = (PathClassLoader) context.getClassLoader(); DexClassLoader dexClassLoader = new DexClassLoader(str, context.getDir("dex", 0).getAbsolutePath(), str, context.getClassLoader()); dexClassLoader.loadClass(str2); setField(obj, PathClassLoader.class, "mPaths", appendArray(getField(obj, PathClassLoader.class, "mPaths"), getField(dexClassLoader, DexClassLoader.class, "mRawDexPath") )); setField(obj, PathClassLoader.class, "mFiles", combineArray(getField(obj, PathClassLoader.class, "mFiles"), getField(dexClassLoader, DexClassLoader.class, "mFiles") )); setField(obj, PathClassLoader.class, "mZips", combineArray(getField(obj, PathClassLoader.class, "mZips"), getField(dexClassLoader, DexClassLoader.class, "mZips"))); setField(obj, PathClassLoader.class, "mDexs", combineArray(getField(obj, PathClassLoader.class, "mDexs"), getField(dexClassLoader, DexClassLoader.class, "mDexs"))); obj.loadClass(str2); } private static void injectAboveEqualApiLevel14(Context context, String patchDexFile, String patchClassName) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException { PathClassLoader pathClassLoader = (PathClassLoader) context.getClassLoader(); if(path == null) { path = pathClassLoader; }else if(path == pathClassLoader){ Log.e("Ruby", "pathClassLoader == path : " + (path == pathClassLoader)); } DexClassLoader dexClassLoader = new DexClassLoader(patchDexFile, context.getDir("dex", 0).getAbsolutePath(), patchDexFile, context.getClassLoader()); if(!isFirst){ first=dexClassLoader; isFirst=true; }else{ second=dexClassLoader; } Log.e("Ruby", "pathClassLoader.hashCode : " + pathClassLoader.hashCode()); Log.e("Ruby", "dexClassLoader.hashCode : " + dexClassLoader.hashCode() +" : " +patchClassName); Object a = combineArray(getDexElements(getPathList(pathClassLoader)), getDexElements(getPathList(dexClassLoader))); Object a2 = getPathList(pathClassLoader); setField(a2, a2.getClass(), "dexElements", a); } private static Object getPathList(Object obj) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException { return getField(obj, Class.forName("dalvik.system.BaseDexClassLoader"), "pathList"); } private static Object getDexElements(Object obj) throws NoSuchFieldException, IllegalAccessException { return getField(obj, obj.getClass(), "dexElements"); } private static Object getField(Object obj, Class cls, String str) throws NoSuchFieldException, IllegalAccessException { Field declaredField = cls.getDeclaredField(str); declaredField.setAccessible(true); return declaredField.get(obj); } private static void setField(Object obj, Class cls, String str, Object obj2) throws NoSuchFieldException, IllegalAccessException { Field declaredField = cls.getDeclaredField(str); declaredField.setAccessible(true); declaredField.set(obj, obj2); } private static Object combineArray(Object obj, Object obj2) { Class componentType = obj2.getClass().getComponentType(); int length = Array.getLength(obj2); Log.e("Ruby", "length 1 : " + Array.getLength(obj)); Log.e("Ruby", "length 2 : " + Array.getLength(obj2)); int length2 = Array.getLength(obj) + length; Object newInstance = Array.newInstance(componentType, length2); for (int i = 0; i < length2; i++) { if (i < length) { Array.set(newInstance, i, Array.get(obj2, i)); } else {