在 Android 10 上安装更新同一个应用程序的 apk 失败；java.lang.SecurityException:文件仍然打开 [英] Installing apk that updates the same app fails on Android 10; java.lang.SecurityException: Files still open
问题描述
我们的应用从我们的服务器下载一个 APK，然后运行它来升级自己.如Android 10 - 未找到处理意图的活动中所述和 Xamarin Android 10 安装 APK - 未找到活动处理 Intent，如果移动设备已升级到 Android 10，这将不会像以前那样工作，出现未找到处理 Intent 的活动".
Our app downloads an APK from our server, and runs this to upgrade itself. As mentioned in Android 10 - No Activity found to handle Intent and Xamarin Android 10 Install APK - No Activity found to handle Intent, this does not work as previously if the mobile device has been upgraded to Android 10, getting "No Activity found to handle Intent".
我们已尝试使用 PackageInstaller 重写此示例，如示例中所示https://android.googlesource.com/platform/development/+/master/samples/ApiDemos/src/com/example/android/apis/content/InstallApkSessionApi.java，但现在得到这个错误:
We've tried to rewrite this using PackageInstaller as in the example https://android.googlesource.com/platform/development/+/master/samples/ApiDemos/src/com/example/android/apis/content/InstallApkSessionApi.java, but now get this error instead:
signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
Abort message: 'JNI DETECTED ERROR IN APPLICATION: JNI GetStaticMethodID called with pending exception java.lang.SecurityException: Files still open
at java.lang.Exception android.os.Parcel.createException(int, java.lang.String) (Parcel.java:2071)
at void android.os.Parcel.readException(int, java.lang.String) (Parcel.java:2039)
at void android.os.Parcel.readException() (Parcel.java:1987)
at void android.content.pm.IPackageInstallerSession$Stub$Proxy.commit(android.content.IntentSender, boolean) (IPackageInstallerSession.java:593)
at void android.content.pm.PackageInstaller$Session.commit(android.content.IntentSender) (PackageInstaller.java:1072)
at void com.mycompany.myApp.QtJavaCustomBridge.JIntentActionInstallApk(java.lang.String) (QtJavaCustomBridge.java:301)
at void org.qtproject.qt5.android.QtNative.startQtApplication() (QtNative.java:-2)
at void org.qtproject.qt5.android.QtNative$7.run() (QtNative.java:374)
at void org.qtproject.qt5.android.QtThread$1.run() (QtThread.java:61)
at void java.lang.Thread.run() (Thread.java:919)
Caused by: android.os.RemoteException: Remote stack trace:
at com.android.server.pm.PackageInstallerSession.assertNoWriteFileTransfersOpenLocked(PackageInstallerSession.java:837)
at com.android.server.pm.PackageInstallerSession.sealAndValidateLocked(PackageInstallerSession.java:1094)
at com.android.server.pm.PackageInstallerSession.markAsCommitted(PackageInstallerSession.java:987)
at com.android.server.pm.PackageInstallerSession.commit(PackageInstallerSession.java:849)
at android.content.pm.IPackageInstallerSession$Stub.onTransact(IPackageInstallerSession.java:306)
(Throwable with no stack trace)
这是我们使用的代码:
public static final String TAG = "JAVA";
public static final String PACKAGE_INSTALLED_ACTION = "com.mycompany.myApp.SESSION_API_PACKAGE_INSTALLED";
public static void JIntentActionInstallApk(final String filename)
{
PackageInstaller.Session session = null;
try {
Log.i(TAG, "JIntentActionInstallApk " + filename);
PackageInstaller packageInstaller = MyAppActivity.getActivityInstance().getPackageManager().getPackageInstaller();
Log.i(TAG, "JIntentActionInstallApk - got packageInstaller");
PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
PackageInstaller.SessionParams.MODE_FULL_INSTALL);
Log.i(TAG, "JIntentActionInstallApk - set SessionParams");
int sessionId = packageInstaller.createSession(params);
session = packageInstaller.openSession(sessionId);
Log.i(TAG, "JIntentActionInstallApk - session opened");
// Create an install status receiver.
Context context = MyAppActivity.getActivityInstance().getApplicationContext();
addApkToInstallSession(context, filename, session);
Log.i(TAG, "JIntentActionInstallApk - apk added to session");
Intent intent = new Intent(context, MyAppActivity.class);
intent.setAction(MyAppActivity.PACKAGE_INSTALLED_ACTION);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
IntentSender statusReceiver = pendingIntent.getIntentSender();
// Commit the session (this will start the installation workflow).
session.commit(statusReceiver);
Log.i(TAG, "JIntentActionInstallApk - commited");
} catch (IOException e) {
throw new RuntimeException("Couldn't install package", e);
} catch (RuntimeException e) {
if (session != null) {
session.abandon();
}
throw e;
}
}
private static void addApkToInstallSession(Context context, String filename, PackageInstaller.Session session)
{
Log.i(TAG, "addApkToInstallSession " + filename);
// It's recommended to pass the file size to openWrite(). Otherwise installation may fail
// if the disk is almost full.
try {
OutputStream packageInSession = session.openWrite("package", 0, -1);
InputStream input;
Uri uri = Uri.parse(filename);
input = context.getContentResolver().openInputStream(uri);
if(input != null) {
Log.i(TAG, "input.available: " + input.available());
byte[] buffer = new byte[16384];
int n;
while ((n = input.read(buffer)) >= 0) {
packageInSession.write(buffer, 0, n);
}
}
else {
Log.i(TAG, "addApkToInstallSession failed");
throw new IOException ("addApkToInstallSession");
}
}
catch (Exception e) {
Log.i(TAG, "addApkToInstallSession failed2 " + e.toString());
}
}
...
@Override
protected void onNewIntent(Intent intent) {
Bundle extras = intent.getExtras();
if (PACKAGE_INSTALLED_ACTION.equals(intent.getAction())) {
int status = extras.getInt(PackageInstaller.EXTRA_STATUS);
String message = extras.getString(PackageInstaller.EXTRA_STATUS_MESSAGE);
switch (status) {
case PackageInstaller.STATUS_PENDING_USER_ACTION:
// This test app isn't privileged, so the user has to confirm the install.
Intent confirmIntent = (Intent) extras.get(Intent.EXTRA_INTENT);
startActivity(confirmIntent);
break;
case PackageInstaller.STATUS_SUCCESS:
Toast.makeText(this, "Install succeeded!", Toast.LENGTH_SHORT).show();
break;
case PackageInstaller.STATUS_FAILURE:
case PackageInstaller.STATUS_FAILURE_ABORTED:
case PackageInstaller.STATUS_FAILURE_BLOCKED:
case PackageInstaller.STATUS_FAILURE_CONFLICT:
case PackageInstaller.STATUS_FAILURE_INCOMPATIBLE:
case PackageInstaller.STATUS_FAILURE_INVALID:
case PackageInstaller.STATUS_FAILURE_STORAGE:
Toast.makeText(this, "Install failed! " + status + ", " + message,
Toast.LENGTH_SHORT).show();
break;
default:
Toast.makeText(this, "Unrecognized status received from installer: " + status,
Toast.LENGTH_SHORT).show();
}
}
}
目标 SDK 设置为 API 23，以便能够支持某些客户拥有的旧设备.我们使用 Qt 作为应用程序框架，但使用 Java 作为原生 Android 功能.
Target SDK is set to API 23 to be able to support old devices some customers have. We're using Qt as the app framework, but Java for native Android functions like this.
对此的一些想法:
* 在 Xamarin Android 10 安装 APK - 无活动发现处理 Intent，他们提到他们需要在 Xamarin 中进行额外的垃圾收集.也许是因为我们在这里遇到了同样的问题?如果是这样，我们如何直接在 Java 中通过它?
* 我们正在尝试使用下载的 apk 升级同一个应用程序.使用包安装程序可以正常工作吗?如果没有，那么我们是否需要使用第二个应用程序来升级原来的应用程序?
* 我们还在应用中运行了一项用于通知的服务，这是否会导致文件仍然打开"问题?
Some thoughts on this:
* In Xamarin Android 10 Install APK - No Activity found to handle Intent, they mention that they need to do extra garbage collection in Xamarin. Maybe it's because of the same issue we have here? If so, how could we get passed this in Java directly?
* We're trying to upgrade the same app using a downloaded apk. Will this work at all using package installer? If not, do we then need to use a second app to upgrade the original?
* We also have a service running in the app as well for notifications, could this be causing the "Files still open" issue?
推荐答案
我能够通过关闭 InputStream 和 OutputStream 来解决这个问题.此外，我必须检查 21 之前的 SDK 版本，因为我们的 API 最低为 16，并且在 API 21 中添加了 PackageInstaller.
I was able to solve this by closing the InputStream and OutputStream. In addition, I had to check for SDK versions prior to 21, as we have minimum API 16 and PackageInstaller was added in API 21.
public static void JIntentActionInstallApk(final String filename)
{
PackageInstaller.Session session = null;
try {
Log.i(TAG, "JIntentActionInstallApk " + filename);
if(Build.VERSION.SDK_INT < 21) {
//as PackageInstaller was added in API 21, let's use the old way of doing it prior to 21
Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
Uri apkUri = Uri.parse(filename);
Context context = MyAppActivity.getQtActivityInstance().getApplicationContext();
ApplicationInfo appInfo = context.getApplicationInfo();
intent.setData(apkUri);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, false);
intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
intent.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME,
appInfo.packageName);
MyAppActivity.getQtActivityInstance().startActivity(intent);
}
else {
// API level 21 or higher, we need to use PackageInstaller
PackageInstaller packageInstaller = MyAppActivity.getQtActivityInstance().getPackageManager().getPackageInstaller();
Log.i(TAG, "JIntentActionInstallApk - got packageInstaller");
PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
PackageInstaller.SessionParams.MODE_FULL_INSTALL);
Log.i(TAG, "JIntentActionInstallApk - set SessionParams");
int sessionId = packageInstaller.createSession(params);
session = packageInstaller.openSession(sessionId);
Log.i(TAG, "JIntentActionInstallApk - session opened");
// Create an install status receiver.
Context context = MyAppActivity.getQtActivityInstance().getApplicationContext();
addApkToInstallSession(context, filename, session);
Log.i(TAG, "JIntentActionInstallApk - apk added to session");
Intent intent = new Intent(context, MyAppActivity.class);
intent.setAction(MyAppActivity.PACKAGE_INSTALLED_ACTION);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
IntentSender statusReceiver = pendingIntent.getIntentSender();
// Commit the session (this will start the installation workflow).
session.commit(statusReceiver);
Log.i(TAG, "JIntentActionInstallApk - commited");
}
} catch (IOException e) {
throw new RuntimeException("Couldn't install package", e);
} catch (RuntimeException e) {
if (session != null) {
session.abandon();
}
throw e;
}
}
private static void addApkToInstallSession(Context context, String filename, PackageInstaller.Session session)
{
Log.i(TAG, "addApkToInstallSession " + filename);
// It's recommended to pass the file size to openWrite(). Otherwise installation may fail
// if the disk is almost full.
try {
OutputStream packageInSession = session.openWrite("package", 0, -1);
InputStream input;
Uri uri = Uri.parse(filename);
input = context.getContentResolver().openInputStream(uri);
if(input != null) {
Log.i(TAG, "input.available: " + input.available());
byte[] buffer = new byte[16384];
int n;
while ((n = input.read(buffer)) >= 0) {
packageInSession.write(buffer, 0, n);
}
}
else {
Log.i(TAG, "addApkToInstallSession failed");
throw new IOException ("addApkToInstallSession");
}
packageInSession.close(); //need to close this stream
input.close(); //need to close this stream
}
catch (Exception e) {
Log.i(TAG, "addApkToInstallSession failed2 " + e.toString());
}
}
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