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package android.taobao.atlas.runtime;
import android.app.PreVerifier;
import android.content.res.AssetManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.taobao.atlas.hack.AndroidHack;
import android.taobao.atlas.hack.AtlasHacks;
import android.taobao.atlas.util.log.impl.AtlasMonitor;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.*;
/**
* Created by guanjie on 15/12/9.
*/
public class DelegateResources extends Resources {
public static final int BUNDLE_RES = 0;
public static final int APK_RES = 1;
private static AssetManagerProcessor sAssetManagerProcessor;
private static ResourcesProcessor sResourcesProcessor;
private static ResourceIdFetcher sResourcesFetcher;
private static ArrayList<String> sFailedAsssetPath = new ArrayList<String>();
private static String sKernalPathPath = null;
private static String sAssetsPatchDir = null;
/**
* Create a new Resources object on top of an existing set of assets in an
* AssetManager.
*
* @param assets Previously created AssetManager.
* @param res previously resource
*/
public DelegateResources(AssetManager assets, Resources res) {
super(assets, res.getDisplayMetrics(), res.getConfiguration());
if(Boolean.FALSE.booleanValue()){
String.valueOf(PreVerifier.class);
}
}
public static void reset(){
sKernalPathPath = null;
sAssetsPatchDir = null;
}
public static void addBundleResources(String assetPath) throws Exception{
synchronized (DelegateResources.class) {
updateResources(RuntimeVariables.delegateResources, assetPath, BUNDLE_RES);
}
}
public static void addApkpatchResources(String assetPath) throws Exception{
AtlasHacks.defineAndVerify();
sKernalPathPath = assetPath;
synchronized (DelegateResources.class) {
updateResources(RuntimeVariables.delegateResources, assetPath, APK_RES);
}
}
public static String getCurrentAssetpathStr(AssetManager manager){
if(sAssetManagerProcessor!=null){
return sAssetManagerProcessor.getCurrentAssetPathStr(manager);
}
return "";
}
public static List<String> getCurrentAssetPath(AssetManager manager){
if(sAssetManagerProcessor!=null){
return sAssetManagerProcessor.getAssetPath(manager);
}
return new ArrayList<String>();
}
public static boolean checkAsset(String assetPath){
if(assetPath!=null && !sFailedAsssetPath.contains(assetPath)){
return true;
}
return false;
}
private static void updateResources(Resources res,String assetPath,int assertType) throws Exception{
if(sAssetManagerProcessor==null){
sAssetManagerProcessor = new AssetManagerProcessor();
}
AssetManager updatedAssetManager = sAssetManagerProcessor.updateAssetManager(res.getAssets(), assetPath, assertType);
if(sResourcesProcessor==null){
sResourcesProcessor = getResourceProcessor();
}
sResourcesProcessor.updateResources(updatedAssetManager);
if(sResourcesFetcher==null){
sResourcesFetcher = new ResourceIdFetcher();
}
sResourcesFetcher.addAssetForGetIdentifier(assetPath);
}
private static ResourcesProcessor getResourceProcessor(){
if(RuntimeVariables.delegateResources.getClass().getName().equals("android.content.res.MiuiResources")){
return new MiuiResourcesProcessor();
}else{
return new ResourcesProcessor();
}
}
@Override
public int getIdentifier(String name, String defType, String defPackage) {
int id = super.getIdentifier(name, defType, defPackage);
if(id!=0){
return id;
}else {
return sResourcesFetcher.getIdentifier(name, defType, defPackage);
}
}
private static class AssetManagerProcessor {
private static HashMap<String,Boolean> sDefaultAssetPathList ;
static {
try {
AssetManager manager = AssetManager.class.newInstance();
ArrayList<String> defaultPaths = getAssetPath(manager);
if(defaultPaths!=null && defaultPaths.size()>0){
sDefaultAssetPathList = new HashMap<String,Boolean>();
for(String path : defaultPaths){
sDefaultAssetPathList.put(path,Boolean.FALSE);
}
}
}catch(Throwable e){
sDefaultAssetPathList = new HashMap<String,Boolean>(0);
}
}
private LinkedHashMap<String,Boolean> assetPathCache = null;
private LinkedHashMap<String,Boolean> preAssetPathCache = null;
public AssetManagerProcessor(){
assetPathCache = new LinkedHashMap<String,Boolean>();
preAssetPathCache = new LinkedHashMap<String,Boolean>();
assetPathCache.put(RuntimeVariables.androidApplication.getApplicationInfo().sourceDir,Boolean.FALSE);
}
public AssetManager updateAssetManager(AssetManager manager,String newAssetPath,int assetType)throws Exception{
AssetManager targetManager = null;
if(assetType == BUNDLE_RES){
if(supportExpandAssetManager()){
targetManager = updateAssetManagerWithAppend(manager, newAssetPath,assetType);
}else{
targetManager = createNewAssetManager(manager,newAssetPath,true,assetType);
}
updateAssetPathList(newAssetPath,true);
}else{
File newAssetsDir = new File(new File(newAssetPath).getParent(),"newAssets");
if(newAssetsDir.exists() && new File(newAssetsDir,"assets").exists()){
sAssetsPatchDir = newAssetsDir.getAbsolutePath();
}
if(supportExpandAssetManager()){
if(findResByAssetIndexDescending()){
targetManager = updateAssetManagerWithAppend(manager,newAssetPath,assetType);
updateAssetPathList(newAssetPath,true);
}else{
targetManager = createNewAssetManager(manager,newAssetPath,false,assetType);
updateAssetPathList(newAssetPath,false);
}
}else{
if(findResByAssetIndexDescending()){
targetManager = createNewAssetManager(manager,newAssetPath,true,assetType);
updateAssetPathList(newAssetPath,true);
}else{
targetManager = createNewAssetManager(manager,newAssetPath,false,assetType);
updateAssetPathList(newAssetPath,false);
}
}
}
return targetManager;
}
public List<String> getCurrentAssetPath(AssetManager target){
if(sAssetManagerProcessor==null){
return new ArrayList<String>();
}
return sAssetManagerProcessor.getAssetPath(target);
}
public String getCurrentAssetPathStr(AssetManager target){
if (target==null){
return "";
}
List<String> currentList = getAssetPath(target);
StringBuffer sb = new StringBuffer();
sb.append("newDelegateResources [");
if(currentList!=null) {
for (String path : currentList) {
sb.append(path).append(",");
}
}
sb.append("]");
return sb.toString();
}
private AssetManager updateAssetManagerWithAppend(AssetManager manager,String newAssetPath,int type) throws Exception{
appendAssetPath(manager, newAssetPath);
/**
* 追加主apk新的assets内容
*/
if(type == APK_RES && sAssetsPatchDir!=null){
appendAssetPath(manager,sAssetsPatchDir);
}
return manager;
}
/**
*
* @param srcManager
* @param newAssetPath
* @param append true : 表示往后追加 false: 表示往前插入
* @return
* @throws Exception
*/
private AssetManager createNewAssetManager(AssetManager srcManager,String newAssetPath,boolean append,int type) throws Exception{
AssetManager newAssetManager = AssetManager.class.newInstance();
List<String> runtimeAdditionalAssets = new ArrayList<String>();
List<String> currentPaths = getAssetPath(srcManager);
for(String currentPath : currentPaths){
if(!sDefaultAssetPathList.containsKey(currentPath) && !assetPathCache.containsKey(currentPath)
&& !preAssetPathCache.containsKey(currentPath) && !currentPath.equals(newAssetPath)){
if(currentPath.toLowerCase().contains("webview")) {
runtimeAdditionalAssets.add(currentPath);
}
}
}
sFailedAsssetPath.clear();
if(!append){
appendAssetPath(newAssetManager,newAssetPath);
}
//顺序添加,逆序加入assetmanager
if(preAssetPathCache!=null){
if(preAssetPathCache.size()==1){
Iterator<Map.Entry<String, Boolean>> iterator = preAssetPathCache.entrySet().iterator();
appendAssetPath(newAssetManager, iterator.next().getKey());
}else {
ListIterator<Map.Entry<String,Boolean>> i=new ArrayList<Map.Entry<String,Boolean>>(preAssetPathCache.entrySet()).listIterator(preAssetPathCache.size());
while(i.hasPrevious()) {
Map.Entry<String, Boolean> entry=i.previous();
appendAssetPath(newAssetManager, entry.getKey());
}
}
}
if(assetPathCache!=null){
Iterator<Map.Entry<String,Boolean>> iterator= assetPathCache.entrySet().iterator();
while(iterator.hasNext()){
Map.Entry<String,Boolean> entry = iterator.next();
if(!sDefaultAssetPathList.containsKey(entry.getKey())) {
appendAssetPath(newAssetManager,entry.getKey());
}
}
}
if(append){
appendAssetPath(newAssetManager,newAssetPath);
}
//add additional assets
if(!runtimeAdditionalAssets.isEmpty()){
for(String additional : runtimeAdditionalAssets){
appendAssetPath(newAssetManager,additional);
}
}
/**
* 追加主apk新的assets内容
*/
if(sAssetsPatchDir!=null){
appendAssetPath(newAssetManager,sAssetsPatchDir);
}
return newAssetManager;
}
/**
* 是否已assetpatch索引降序的方式查找资源
* @return
*/
private boolean findResByAssetIndexDescending(){
if(Build.VERSION.SDK_INT>20){
return false;
}else {
return true;
}
}
private boolean hasCreatedAssetsManager = false;
private synchronized boolean supportExpandAssetManager(){
if(Build.VERSION.SDK_INT>=24){
return true;
}else if(!hasCreatedAssetsManager || Build.VERSION.SDK_INT<=20 ||
Build.BRAND.equalsIgnoreCase("sony") || Build.BRAND.equalsIgnoreCase("semc")){
hasCreatedAssetsManager = true;
return false;
}else{
return true;
}
}
private void updateAssetPathList(String newAssetPath,boolean append){
if(append) {
assetPathCache.put(newAssetPath,Boolean.FALSE);
}else{
//顺序添加,逆序加入assetmanager
preAssetPathCache.put(newAssetPath,Boolean.FALSE);
}
if(sKernalPathPath!=null) {
if(sFailedAsssetPath.contains(sKernalPathPath)){
// AtlasMonitor.getInstance().trace(AtlasMonitor.KERNAL_RESOLVE_FAIL,"com.taobao.maindex",AtlasMonitor.ADD_RESOURCES_FAIL_MSG,"maindex arsc inject fail");
throw new RuntimeException("maindex arsc inject fail");
}
if(sAssetsPatchDir!=null) {
if(sFailedAsssetPath.contains(sAssetsPatchDir)){
// AtlasMonitor.getInstance().trace(AtlasMonitor.KERNAL_RESOLVE_FAIL,"com.taobao.maindex",AtlasMonitor.ADD_RESOURCES_FAIL_MSG,"maindex assets inject fail");
throw new RuntimeException("maindex assets inject fail");
}
}
}
}
private boolean appendAssetPath(AssetManager asset,String path) throws Exception{
int cookie = 0;
boolean result = false;
try{
if ((cookie = Integer.parseInt(AtlasHacks.AssetManager_addAssetPath.invoke(asset, path).toString())) == 0){
// if failed try three times
int i = 0;
for (i = 0; i < 3; i++){
if ((cookie=Integer.parseInt(AtlasHacks.AssetManager_addAssetPath.invoke(asset, path).toString())) != 0){
break;
}
}
}
if(cookie==0){
sFailedAsssetPath.add(path);
} else {
result = true;
}
}catch(NumberFormatException e){}
if (!result) {
AtlasMonitor.getInstance().trace(AtlasMonitor.CONTAINER_APPEND_ASSETPATH_FAIL,
false, "0", "","");
}
return result;
}
public static ArrayList<String> getAssetPath(AssetManager manager){
ArrayList<String> assetPaths = new ArrayList<String>();
try {
Method method = manager.getClass().getDeclaredMethod("getStringBlockCount");
method.setAccessible(true);
int assetsPathCount = (Integer) method.invoke(manager);
for (int x = 0; x < assetsPathCount; x++) {
// Cookies map to string blocks starting at 1
String assetsPath = (String) manager.getClass().getMethod("getCookieName", int.class).invoke(manager, x + 1);
if ((sDefaultAssetPathList== null)||(!TextUtils.isEmpty(assetsPath) && !sDefaultAssetPathList.containsKey(assetsPath))) {
assetPaths.add(assetsPath);
}
}
} catch (Throwable e) {
e.printStackTrace();
}
return assetPaths;
}
}
/**
* process resources with new AssetManager
*/
public static class ResourcesProcessor{
public void updateResources(AssetManager assetManager) throws Exception{
if(RuntimeVariables.delegateResources.getAssets()!=assetManager ||
RuntimeVariables.delegateResources== null ||
!(RuntimeVariables.delegateResources instanceof DelegateResources)){
RuntimeVariables.delegateResources = createNewResources(assetManager);
AndroidHack.injectResources(RuntimeVariables.androidApplication, RuntimeVariables.delegateResources);
}
}
Resources createNewResources(AssetManager manager) throws Exception{
return new DelegateResources(manager, RuntimeVariables.delegateResources);
}
}
public static class MiuiResourcesProcessor extends ResourcesProcessor{
@Override
Resources createNewResources(AssetManager manager) throws Exception {
if(Build.VERSION.SDK_INT<=20) {
Class<?> miuiResClass = Class.forName("android.content.res.MiuiResources");
Constructor<?> miuiCons = miuiResClass.getDeclaredConstructor(AssetManager.class,DisplayMetrics.class,Configuration.class);
miuiCons.setAccessible(true);
return (Resources) miuiCons.newInstance(manager,RuntimeVariables.delegateResources.getDisplayMetrics(),
RuntimeVariables.delegateResources.getConfiguration());
}else{
return super.createNewResources(manager);
}
}
}
}