| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.applications; |
| |
| import static android.app.Activity.RESULT_OK; |
| |
| import static com.android.car.settings.applications.ApplicationsUtils.isFallbackPackage; |
| import static com.android.car.settings.applications.ApplicationsUtils.isKeepEnabledPackage; |
| import static com.android.car.settings.applications.ApplicationsUtils.isProfileOrDeviceOwner; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.admin.DevicePolicyManager; |
| import android.car.userlib.CarUserManagerHelper; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.ArraySet; |
| import android.view.View; |
| import android.widget.Button; |
| |
| import androidx.annotation.LayoutRes; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.VisibleForTesting; |
| import androidx.annotation.XmlRes; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.ActivityResultCallback; |
| import com.android.car.settings.common.ConfirmationDialogFragment; |
| import com.android.car.settings.common.Logger; |
| import com.android.car.settings.common.SettingsFragment; |
| import com.android.settingslib.Utils; |
| import com.android.settingslib.applications.ApplicationsState; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Shows details about an application and action associated with that application, like uninstall, |
| * forceStop. |
| * |
| * <p>To uninstall an app, it must <i>not</i> be: |
| * <ul> |
| * <li>a system bundled app |
| * <li>system signed |
| * <li>managed by an active admin from a device policy |
| * <li>a device or profile owner |
| * <li>the only home app |
| * <li>the default home app |
| * <li>for a user with the {@link UserManager#DISALLOW_APPS_CONTROL} restriction |
| * <li>for a user with the {@link UserManager#DISALLOW_UNINSTALL_APPS} restriction |
| * </ul> |
| * |
| * <p>For apps that cannot be uninstalled, a disable option is shown instead (or enable if the app |
| * is already disabled). |
| */ |
| public class ApplicationDetailsFragment extends SettingsFragment implements ActivityResultCallback { |
| private static final Logger LOG = new Logger(ApplicationDetailsFragment.class); |
| public static final String EXTRA_PACKAGE_NAME = "extra_package_name"; |
| |
| @VisibleForTesting |
| static final String DISABLE_CONFIRM_DIALOG_TAG = |
| "com.android.car.settings.applications.DisableConfirmDialog"; |
| @VisibleForTesting |
| static final String FORCE_STOP_CONFIRM_DIALOG_TAG = |
| "com.android.car.settings.applications.ForceStopConfirmDialog"; |
| @VisibleForTesting |
| static final int UNINSTALL_REQUEST_CODE = 10; |
| |
| private DevicePolicyManager mDpm; |
| private PackageManager mPm; |
| private CarUserManagerHelper mCarUserManagerHelper; |
| |
| private String mPackageName; |
| private PackageInfo mPackageInfo; |
| private ApplicationsState mAppState; |
| private ApplicationsState.Session mSession; |
| private ApplicationsState.AppEntry mAppEntry; |
| |
| // The function of this button depends on which app is shown and the app's current state. |
| // It is an application enable/disable toggle for apps bundled with the system image. |
| private Button mUninstallButton; |
| private Button mForceStopButton; |
| |
| /** Creates an instance of this fragment, passing packageName as an argument. */ |
| public static ApplicationDetailsFragment getInstance(String packageName) { |
| ApplicationDetailsFragment applicationDetailFragment = new ApplicationDetailsFragment(); |
| Bundle bundle = new Bundle(); |
| bundle.putString(EXTRA_PACKAGE_NAME, packageName); |
| applicationDetailFragment.setArguments(bundle); |
| return applicationDetailFragment; |
| } |
| |
| @Override |
| @XmlRes |
| protected int getPreferenceScreenResId() { |
| return R.xml.application_details_fragment; |
| } |
| |
| @Override |
| @LayoutRes |
| protected int getActionBarLayoutId() { |
| return R.layout.action_bar_with_button; |
| } |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE); |
| mPm = context.getPackageManager(); |
| mCarUserManagerHelper = new CarUserManagerHelper(context); |
| |
| // These should be loaded before onCreate() so that the controller operates as expected. |
| mPackageName = getArguments().getString(EXTRA_PACKAGE_NAME); |
| |
| mAppState = ApplicationsState.getInstance(requireActivity().getApplication()); |
| mSession = mAppState.newSession(mApplicationStateCallbacks, getLifecycle()); |
| |
| retrieveAppEntry(); |
| |
| use(ApplicationPreferenceController.class, |
| R.string.pk_application_details_app) |
| .setAppEntry(mAppEntry).setAppState(mAppState); |
| use(NotificationsPreferenceController.class, |
| R.string.pk_application_details_notifications).setPackageInfo(mPackageInfo); |
| use(PermissionsPreferenceController.class, |
| R.string.pk_application_details_permissions).setPackageName(mPackageName); |
| use(VersionPreferenceController.class, |
| R.string.pk_application_details_version).setPackageInfo(mPackageInfo); |
| } |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| ConfirmationDialogFragment.resetListeners( |
| (ConfirmationDialogFragment) findDialogByTag(DISABLE_CONFIRM_DIALOG_TAG), |
| mDisableConfirmListener, /* rejectListener= */ null); |
| ConfirmationDialogFragment.resetListeners( |
| (ConfirmationDialogFragment) findDialogByTag(FORCE_STOP_CONFIRM_DIALOG_TAG), |
| mForceStopConfirmListener, /* rejectListener= */ null); |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| |
| mUninstallButton = requireActivity().findViewById(R.id.action_button1); |
| mForceStopButton = requireActivity().findViewById(R.id.action_button2); |
| mForceStopButton.setVisibility(View.VISIBLE); |
| mForceStopButton.setEnabled(false); |
| mForceStopButton.setText(R.string.force_stop); |
| mForceStopButton.setOnClickListener(mForceStopClickListener); |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| // Resume the session earlier than the lifecycle so that cached information is updated |
| // even if settings is not resumed (for example in multi-display). |
| mSession.onResume(); |
| refresh(); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| // Since we resume early in onStart, make sure we clean up even if we don't receive onPause. |
| mSession.onPause(); |
| } |
| |
| private void refresh() { |
| retrieveAppEntry(); |
| if (mAppEntry == null) { |
| goBack(); |
| } |
| updateForceStopButton(); |
| updateUninstallButton(); |
| } |
| |
| private void retrieveAppEntry() { |
| mAppEntry = mAppState.getEntry(mPackageName, |
| mCarUserManagerHelper.getCurrentProcessUserId()); |
| if (mAppEntry != null) { |
| try { |
| mPackageInfo = mPm.getPackageInfo(mPackageName, |
| PackageManager.MATCH_DISABLED_COMPONENTS | PackageManager.MATCH_ANY_USER |
| | PackageManager.GET_SIGNATURES | PackageManager.GET_PERMISSIONS); |
| } catch (PackageManager.NameNotFoundException e) { |
| LOG.e("Exception when retrieving package:" + mPackageName, e); |
| mPackageInfo = null; |
| } |
| } else { |
| mPackageInfo = null; |
| } |
| } |
| |
| private void updateForceStopButton() { |
| if (mDpm.packageHasActiveAdmins(mPackageName)) { |
| updateForceStopButtonInner(/* enabled= */ false); |
| } else if ((mAppEntry.info.flags & ApplicationInfo.FLAG_STOPPED) == 0) { |
| // If the app isn't explicitly stopped, then always show the force stop button. |
| updateForceStopButtonInner(/* enabled= */ true); |
| } else { |
| Intent intent = new Intent(Intent.ACTION_QUERY_PACKAGE_RESTART, |
| Uri.fromParts("package", mPackageName, /* fragment= */ null)); |
| intent.putExtra(Intent.EXTRA_PACKAGES, new String[]{mPackageName}); |
| intent.putExtra(Intent.EXTRA_UID, mAppEntry.info.uid); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.getUserId(mAppEntry.info.uid)); |
| LOG.d("Sending broadcast to query restart status for " + mPackageName); |
| requireContext().sendOrderedBroadcastAsUser(intent, |
| UserHandle.CURRENT, |
| /* receiverPermission= */ null, |
| mCheckKillProcessesReceiver, |
| /* scheduler= */ null, |
| Activity.RESULT_CANCELED, |
| /* initialData= */ null, |
| /* initialExtras= */ null); |
| } |
| } |
| |
| private void updateForceStopButtonInner(boolean enabled) { |
| mForceStopButton.setEnabled( |
| enabled && !mCarUserManagerHelper.isCurrentProcessUserHasRestriction( |
| UserManager.DISALLOW_APPS_CONTROL)); |
| } |
| |
| private void updateUninstallButton() { |
| if (isBundledApp()) { |
| if (isAppEnabled()) { |
| mUninstallButton.setText(R.string.disable_text); |
| mUninstallButton.setOnClickListener(mDisableClickListener); |
| } else { |
| mUninstallButton.setText(R.string.enable_text); |
| mUninstallButton.setOnClickListener(mEnableClickListener); |
| } |
| } else { |
| mUninstallButton.setText(R.string.uninstall_text); |
| mUninstallButton.setOnClickListener(mUninstallClickListener); |
| } |
| |
| mUninstallButton.setEnabled(!shouldDisableUninstallButton()); |
| } |
| |
| private boolean shouldDisableUninstallButton() { |
| if (shouldDisableUninstallForHomeApp()) { |
| LOG.d("Uninstall disabled for home app"); |
| return true; |
| } |
| |
| if (isAppEnabled() && isKeepEnabledPackage(requireContext(), mPackageName)) { |
| LOG.d("Disable button disabled for keep enabled package"); |
| return true; |
| } |
| |
| if (Utils.isSystemPackage(getResources(), mPm, mPackageInfo)) { |
| LOG.d("Uninstall disabled for system package"); |
| return true; |
| } |
| |
| if (mDpm.packageHasActiveAdmins(mPackageName)) { |
| LOG.d("Uninstall disabled because package has active admins"); |
| return true; |
| } |
| |
| // We don't allow uninstalling profile/device owner on any user because if it's a system |
| // app, "uninstall" is actually "downgrade to the system version + disable", and |
| // "downgrade" will clear data on all users. |
| if (isProfileOrDeviceOwner(mPackageName, mDpm, mCarUserManagerHelper)) { |
| LOG.d("Uninstall disabled because package is profile or device owner"); |
| return true; |
| } |
| |
| if (mDpm.isUninstallInQueue(mPackageName)) { |
| LOG.d("Uninstall disabled because intent is already queued"); |
| return true; |
| } |
| |
| if (mCarUserManagerHelper.isCurrentProcessUserHasRestriction( |
| UserManager.DISALLOW_APPS_CONTROL)) { |
| LOG.d("Uninstall disabled because user has DISALLOW_APPS_CONTROL restriction"); |
| return true; |
| } |
| |
| if (mCarUserManagerHelper.isCurrentProcessUserHasRestriction( |
| UserManager.DISALLOW_UNINSTALL_APPS)) { |
| LOG.d("Uninstall disabled because user has DISALLOW_UNINSTALL_APPS restriction"); |
| return true; |
| } |
| |
| if (isFallbackPackage(mPackageName)) { |
| LOG.d("Uninstall disabled because package is a fallback package"); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Returns {@code true} if the package is a Home app that should not be uninstalled. We don't |
| * risk downgrading bundled home apps because that can interfere with home-key resolution. We |
| * can't allow removal of the only home app, and we don't want to allow removal of an |
| * explicitly preferred home app. The user can go to Home settings and pick a different app, |
| * after which we'll permit removal of the now-not-default app. |
| */ |
| private boolean shouldDisableUninstallForHomeApp() { |
| Set<String> homePackages = new ArraySet<>(); |
| // Get list of "home" apps and trace through any meta-data references. |
| List<ResolveInfo> homeActivities = new ArrayList<>(); |
| ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities); |
| for (int i = 0; i < homeActivities.size(); i++) { |
| ResolveInfo ri = homeActivities.get(i); |
| String activityPkg = ri.activityInfo.packageName; |
| homePackages.add(activityPkg); |
| |
| // Also make sure to include anything proxying for the home app. |
| Bundle metadata = ri.activityInfo.metaData; |
| if (metadata != null) { |
| String metaPkg = metadata.getString(ActivityManager.META_HOME_ALTERNATE); |
| if (signaturesMatch(metaPkg, activityPkg)) { |
| homePackages.add(metaPkg); |
| } |
| } |
| } |
| |
| if (homePackages.contains(mPackageName)) { |
| boolean isBundledApp = (mAppEntry.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; |
| if (isBundledApp) { |
| // Don't risk a downgrade. |
| return true; |
| } else if (currentDefaultHome == null) { |
| // No preferred default. Permit uninstall only when there is more than one |
| // candidate. |
| return (homePackages.size() == 1); |
| } else { |
| // Explicit default home app. Forbid uninstall of that one, but permit it for |
| // installed-but-inactive ones. |
| return mPackageName.equals(currentDefaultHome.getPackageName()); |
| } |
| } else { |
| // Not a home app. |
| return false; |
| } |
| } |
| |
| private boolean signaturesMatch(String pkg1, String pkg2) { |
| if (pkg1 != null && pkg2 != null) { |
| try { |
| int match = mPm.checkSignatures(pkg1, pkg2); |
| if (match >= PackageManager.SIGNATURE_MATCH) { |
| return true; |
| } |
| } catch (Exception e) { |
| // e.g. package not found during lookup. Possibly bad input. |
| // Just return false as this isn't a reason to crash given the use case. |
| } |
| } |
| return false; |
| } |
| |
| private boolean isBundledApp() { |
| return (mAppEntry.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; |
| } |
| |
| private boolean isAppEnabled() { |
| return mAppEntry.info.enabled && !(mAppEntry.info.enabledSetting |
| == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED); |
| } |
| |
| @Override |
| public void processActivityResult(int requestCode, int resultCode, @Nullable Intent data) { |
| if (requestCode == UNINSTALL_REQUEST_CODE) { |
| if (resultCode == RESULT_OK) { |
| goBack(); |
| } else { |
| LOG.e("Uninstall failed with result " + resultCode); |
| } |
| } |
| } |
| |
| private final View.OnClickListener mForceStopClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| ConfirmationDialogFragment dialogFragment = |
| new ConfirmationDialogFragment.Builder(getContext()) |
| .setTitle(R.string.force_stop_dialog_title) |
| .setMessage(R.string.force_stop_dialog_text) |
| .setPositiveButton(android.R.string.ok, |
| mForceStopConfirmListener) |
| .setNegativeButton(android.R.string.cancel, /* rejectListener= */ null) |
| .build(); |
| showDialog(dialogFragment, FORCE_STOP_CONFIRM_DIALOG_TAG); |
| } |
| }; |
| |
| private final ConfirmationDialogFragment.ConfirmListener mForceStopConfirmListener = |
| new ConfirmationDialogFragment.ConfirmListener() { |
| @Override |
| public void onConfirm(@Nullable Bundle arguments) { |
| ActivityManager am = (ActivityManager) requireContext().getSystemService( |
| Context.ACTIVITY_SERVICE); |
| LOG.d("Stopping package " + mPackageName); |
| am.forceStopPackage(mPackageName); |
| int userId = UserHandle.getUserId(mAppEntry.info.uid); |
| mAppState.invalidatePackage(mPackageName, userId); |
| } |
| }; |
| |
| private final BroadcastReceiver mCheckKillProcessesReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| boolean enabled = getResultCode() != Activity.RESULT_CANCELED; |
| LOG.d("Got broadcast response: Restart status for " + mPackageName + " " + enabled); |
| updateForceStopButtonInner(enabled); |
| } |
| }; |
| |
| private final View.OnClickListener mDisableClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| ConfirmationDialogFragment dialogFragment = |
| new ConfirmationDialogFragment.Builder(getContext()) |
| .setMessage(getString(R.string.app_disable_dialog_text)) |
| .setPositiveButton(R.string.app_disable_dialog_positive, |
| mDisableConfirmListener) |
| .setNegativeButton(android.R.string.cancel, /* rejectListener= */ null) |
| .build(); |
| showDialog(dialogFragment, DISABLE_CONFIRM_DIALOG_TAG); |
| } |
| }; |
| |
| private final ConfirmationDialogFragment.ConfirmListener mDisableConfirmListener = |
| new ConfirmationDialogFragment.ConfirmListener() { |
| @Override |
| public void onConfirm(@Nullable Bundle arguments) { |
| mPm.setApplicationEnabledSetting(mPackageName, |
| PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER, /* flags= */ 0); |
| } |
| }; |
| |
| private final View.OnClickListener mEnableClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| mPm.setApplicationEnabledSetting(mPackageName, |
| PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, /* flags= */ 0); |
| } |
| }; |
| |
| private final View.OnClickListener mUninstallClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| Uri packageUri = Uri.parse("package:" + mPackageName); |
| |
| Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri); |
| uninstallIntent.putExtra(Intent.EXTRA_UNINSTALL_ALL_USERS, true); |
| uninstallIntent.putExtra(Intent.EXTRA_RETURN_RESULT, true); |
| |
| startActivityForResult(uninstallIntent, UNINSTALL_REQUEST_CODE, /* callback= */ |
| ApplicationDetailsFragment.this); |
| } |
| }; |
| |
| private final ApplicationsState.Callbacks mApplicationStateCallbacks = |
| new ApplicationsState.Callbacks() { |
| @Override |
| public void onRunningStateChanged(boolean running) { |
| } |
| |
| @Override |
| public void onPackageListChanged() { |
| refresh(); |
| } |
| |
| @Override |
| public void onRebuildComplete(ArrayList<ApplicationsState.AppEntry> apps) { |
| } |
| |
| @Override |
| public void onPackageIconChanged() { |
| } |
| |
| @Override |
| public void onPackageSizeChanged(String packageName) { |
| } |
| |
| @Override |
| public void onAllSizesComputed() { |
| } |
| |
| @Override |
| public void onLauncherInfoChanged() { |
| } |
| |
| @Override |
| public void onLoadEntriesCompleted() { |
| } |
| }; |
| } |