/**
* 初始化loader, 只可调用一次
*
* @param app
*/
public static synchronized void initLoader(Application app, PluginManager manager) {
if (!isLoaderInited) {
LogUtil.d("插件框架初始化中...");
isLoaderInited = true;
sApplication = app;
pluginManager = manager;
changeListener = new PluginCallbackImpl();
AndroidAppIActivityManager.installProxy();
AndroidAppINotificationManager.installProxy();
AndroidAppIPackageManager.installProxy(sApplication.getPackageManager());
AndroidWidgetToast.installProxy();
// 不可在主进程中同步安装，因为此时ActivityThread还没有准备好, 会导致空指针。
new Handler()
.postDelayed(
new Runnable() {
@Override
public void run() {
AndroidWebkitWebViewFactoryProvider.installProxy();
}
},
50);
PluginInjector.injectInstrumentation();
PluginInjector.injectHandlerCallback();
PluginInjector.injectBaseContext(sApplication);
pluginManager.loadInstalledPlugins();
Iterator<PluginDescriptor> itr = getPlugins().iterator();
while (itr.hasNext()) {
PluginDescriptor plugin = itr.next();
LocalServiceManager.registerService(plugin);
}
changeListener.onPluginLoaderInited();
if (Build.VERSION.SDK_INT >= 14) {
sApplication.registerActivityLifecycleCallbacks(
new Application.ActivityLifecycleCallbacks() {
@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {}
@Override
public void onActivityStarted(Activity activity) {}
@Override
public void onActivityResumed(Activity activity) {}
@Override
public void onActivityPaused(Activity activity) {}
@Override
public void onActivityStopped(Activity activity) {}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {}
@Override
public void onActivityDestroyed(Activity activity) {
PluginStubBinding.unBindLaunchModeStubActivity(
activity.getClass().getName(), activity.getIntent());
}
});
}
LogUtil.d("插件框架初始化完成");
}
}
/**
* 安装一个插件
*
* @param srcPluginFile
* @return
*/
public static synchronized int installPlugin(String srcPluginFile) {
LogUtil.e("开始安装插件", srcPluginFile);
if (TextUtils.isEmpty(srcPluginFile) || !new File(srcPluginFile).exists()) {
return SRC_FILE_NOT_FOUND;
}
// 第0步，先将apk复制到宿主程序私有目录，防止在安装过程中文件被篡改
if (!srcPluginFile.startsWith(sApplication.getCacheDir().getAbsolutePath())) {
String tempFilePath =
sApplication.getCacheDir().getAbsolutePath()
+ File.separator
+ System.currentTimeMillis()
+ ".apk";
if (FileUtil.copyFile(srcPluginFile, tempFilePath)) {
srcPluginFile = tempFilePath;
} else {
LogUtil.e("复制插件文件失败", srcPluginFile, tempFilePath);
return COPY_FILE_FAIL;
}
}
// 第1步，验证插件APK签名，如果被篡改过，将获取不到证书
// sApplication.getPackageManager().getPackageArchiveInfo(srcPluginFile,
// PackageManager.GET_SIGNATURES);
Signature[] pluginSignatures = PackageVerifyer.collectCertificates(srcPluginFile, false);
boolean isDebugable =
(0 != (sApplication.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE));
if (pluginSignatures == null) {
LogUtil.e("插件签名验证失败", srcPluginFile);
new File(srcPluginFile).delete();
return SIGNATURES_INVALIDATE;
} else if (NEED_VERIFY_CERT && !isDebugable) {
// 可选步骤，验证插件APK证书是否和宿主程序证书相同。
// 证书中存放的是公钥和算法信息，而公钥和私钥是1对1的
// 公钥相同意味着是同一个作者发布的程序
Signature[] mainSignatures = null;
try {
PackageInfo pkgInfo =
sApplication
.getPackageManager()
.getPackageInfo(sApplication.getPackageName(), PackageManager.GET_SIGNATURES);
mainSignatures = pkgInfo.signatures;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
if (!PackageVerifyer.isSignaturesSame(mainSignatures, pluginSignatures)) {
LogUtil.e("插件证书和宿主证书不一致", srcPluginFile);
new File(srcPluginFile).delete();
return VERIFY_SIGNATURES_FAIL;
}
}
// 第2步，解析Manifest，获得插件详情
PluginDescriptor pluginDescriptor = PluginManifestParser.parseManifest(srcPluginFile);
if (pluginDescriptor == null || TextUtils.isEmpty(pluginDescriptor.getPackageName())) {
LogUtil.e("解析插件Manifest文件失败", srcPluginFile);
new File(srcPluginFile).delete();
return PARSE_MANIFEST_FAIL;
}
PackageInfo packageInfo =
sApplication
.getPackageManager()
.getPackageArchiveInfo(srcPluginFile, PackageManager.GET_GIDS);
if (packageInfo != null) {
pluginDescriptor.setApplicationTheme(packageInfo.applicationInfo.theme);
pluginDescriptor.setApplicationIcon(packageInfo.applicationInfo.icon);
pluginDescriptor.setApplicationLogo(packageInfo.applicationInfo.logo);
}
boolean isNeedPending = false;
// 第3步，检查插件是否已经存在,若存在删除旧的
PluginDescriptor oldPluginDescriptor =
getPluginDescriptorByPluginId(pluginDescriptor.getPackageName());
if (oldPluginDescriptor != null) {
LogUtil.e(
"已安装过，安装路径为",
oldPluginDescriptor.getInstalledPath(),
oldPluginDescriptor.getVersion(),
pluginDescriptor.getVersion());
// 检查插件是否已经加载
if (oldPluginDescriptor.getPluginContext() != null) {
if (!oldPluginDescriptor.getVersion().equals(pluginDescriptor.getVersion())) {
LogUtil.e("旧版插件已经加载， 且新版插件和旧版插件版本不同，进入pending状态，新版插件将在安装后进程重启再生效");
isNeedPending = true;
} else {
LogUtil.e("旧版插件已经加载， 且新版插件和旧版插件版本相同，拒绝安装");
new File(srcPluginFile).delete();
return FAIL_BECAUSE_HAS_LOADED;
}
} else {
LogUtil.e("旧版插件还未加载，忽略版本，直接删除旧版，尝试安装新版");
remove(oldPluginDescriptor.getPackageName());
}
}
// 第4步骤，复制插件到插件目录
String destApkPath =
pluginManager.genInstallPath(
pluginDescriptor.getPackageName(), pluginDescriptor.getVersion());
boolean isCopySuccess = FileUtil.copyFile(srcPluginFile, destApkPath);
if (!isCopySuccess) {
LogUtil.e("复制插件到安装目录失败", srcPluginFile);
// 删掉临时文件
new File(srcPluginFile).delete();
return COPY_FILE_FAIL;
} else {
// 第5步，先解压so到临时目录，再从临时目录复制到插件so目录。 在构造插件Dexclassloader的时候，会使用这个so目录作为参数
File apkParent = new File(destApkPath).getParentFile();
File tempSoDir = new File(apkParent, "temp");
Set<String> soList = FileUtil.unZipSo(srcPluginFile, tempSoDir);
if (soList != null) {
for (String soName : soList) {
FileUtil.copySo(tempSoDir, soName, apkParent.getAbsolutePath());
}
// 删掉临时文件
FileUtil.deleteAll(tempSoDir);
}
// 第6步 添加到已安装插件列表
pluginDescriptor.setInstalledPath(destApkPath);
boolean isInstallSuccess = false;
if (!isNeedPending) {
isInstallSuccess = pluginManager.addOrReplace(pluginDescriptor);
} else {
isInstallSuccess = pluginManager.pending(pluginDescriptor);
}
// 删掉临时文件
new File(srcPluginFile).delete();
if (!isInstallSuccess) {
LogUtil.e("安装插件失败", srcPluginFile);
new File(destApkPath).delete();
return INSTALL_FAIL;
} else {
// 通过创建classloader来触发dexopt，但不加载
LogUtil.d("正在进行DEXOPT...", pluginDescriptor.getInstalledPath());
FileUtil.deleteAll(new File(apkParent, "dalvik-cache"));
PluginCreator.createPluginClassLoader(
pluginDescriptor.getInstalledPath(), pluginDescriptor.isStandalone(), null);
LogUtil.d("DEXOPT完毕");
if (!isNeedPending) {
LocalServiceManager.registerService(pluginDescriptor);
}
changeListener.onPluginInstalled(
pluginDescriptor.getPackageName(), pluginDescriptor.getVersion());
LogUtil.e("安装插件成功," + (isNeedPending ? " 重启进程生效" : " 立即生效"), destApkPath);
return SUCCESS;
}
}
}