Fix issue #5320747: Disabling an app that is an active device administrator...

...can lead to an unsecure device

Now you can't disable device admins.

Or clear their data.

Or force stop them.

Or uninstall them (though the package manager also prevents uninstalling, might
as well disable this button along with everything else).

Change-Id: I69eefc2342e6f932908e9f5b87d3a601752810a4
This commit is contained in:
Dianne Hackborn
2011-09-16 13:36:20 -07:00
parent ae226fffad
commit 5c2b48d4d5
2 changed files with 39 additions and 7 deletions

View File

@@ -25,6 +25,7 @@ import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.Fragment;
import android.app.admin.DevicePolicyManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
@@ -86,6 +87,7 @@ public class InstalledAppDetails extends Fragment
private PackageManager mPm;
private IUsbManager mUsbManager;
private DevicePolicyManager mDpm;
private ApplicationsState mState;
private ApplicationsState.AppEntry mAppEntry;
private PackageInfo mPackageInfo;
@@ -206,7 +208,8 @@ public class InstalledAppDetails extends Fragment
private void initDataButtons() {
if ((mAppEntry.info.flags&(ApplicationInfo.FLAG_SYSTEM
| ApplicationInfo.FLAG_ALLOW_CLEAR_USER_DATA))
== ApplicationInfo.FLAG_SYSTEM) {
== ApplicationInfo.FLAG_SYSTEM
|| mDpm.packageHasActiveAdmins(mPackageInfo.packageName)) {
mClearDataButton.setText(R.string.clear_user_data_text);
mClearDataButton.setEnabled(false);
mCanClearData = false;
@@ -304,6 +307,11 @@ public class InstalledAppDetails extends Fragment
mUninstallButton.setText(R.string.uninstall_text);
}
}
// If this is a device admin, it can't be uninstall or disabled.
// We do this here so the text of the button is still set correctly.
if (mDpm.packageHasActiveAdmins(mPackageInfo.packageName)) {
enabled = false;
}
mUninstallButton.setEnabled(enabled);
if (enabled) {
// Register listener
@@ -320,6 +328,7 @@ public class InstalledAppDetails extends Fragment
mPm = getActivity().getPackageManager();
IBinder b = ServiceManager.getService(Context.USB_SERVICE);
mUsbManager = IUsbManager.Stub.asInterface(b);
mDpm = (DevicePolicyManager)getActivity().getSystemService(Context.DEVICE_POLICY_SERVICE);
mCanBeOnSdCardChecker = new CanBeOnSdCardChecker();
}
@@ -809,15 +818,18 @@ public class InstalledAppDetails extends Fragment
}
private void checkForceStop() {
Intent intent = new Intent(Intent.ACTION_QUERY_PACKAGE_RESTART,
Uri.fromParts("package", mAppEntry.info.packageName, null));
intent.putExtra(Intent.EXTRA_PACKAGES, new String[] { mAppEntry.info.packageName });
intent.putExtra(Intent.EXTRA_UID, mAppEntry.info.uid);
if ((mAppEntry.info.flags&ApplicationInfo.FLAG_STOPPED) == 0) {
if (mDpm.packageHasActiveAdmins(mPackageInfo.packageName)) {
// User can't force stop device admin.
updateForceStopButton(false);
} else if ((mAppEntry.info.flags&ApplicationInfo.FLAG_STOPPED) == 0) {
// If the app isn't explicitly stopped, then always show the
// force stop button.
updateForceStopButton(true);
} else {
Intent intent = new Intent(Intent.ACTION_QUERY_PACKAGE_RESTART,
Uri.fromParts("package", mAppEntry.info.packageName, null));
intent.putExtra(Intent.EXTRA_PACKAGES, new String[] { mAppEntry.info.packageName });
intent.putExtra(Intent.EXTRA_UID, mAppEntry.info.uid);
getActivity().sendOrderedBroadcast(intent, null, mCheckKillProcessesReceiver, null,
Activity.RESULT_CANCELED, null, null);
}