| /* |
| * Copyright (C) 2014 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.settings; |
| |
| import com.android.internal.content.PackageMonitor; |
| import com.android.settings.DataUsageSummary.AppItem; |
| |
| import android.Manifest; |
| import android.app.ActivityThread; |
| import android.app.AlertDialog; |
| import android.app.AppOpsManager; |
| import android.app.Dialog; |
| import android.app.DialogFragment; |
| import android.app.Fragment; |
| import android.app.FragmentTransaction; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.preference.Preference; |
| import android.preference.PreferenceScreen; |
| import android.preference.SwitchPreference; |
| import android.util.ArrayMap; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.SparseArray; |
| |
| import java.util.List; |
| import java.util.Collections; |
| |
| public class UsageAccessSettings extends SettingsPreferenceFragment implements |
| Preference.OnPreferenceChangeListener { |
| |
| private static final String TAG = "UsageAccessSettings"; |
| private static final String BUNDLE_KEY_PROFILEID = "profileId"; |
| |
| private static final String[] PM_USAGE_STATS_PERMISSION = new String[] { |
| Manifest.permission.PACKAGE_USAGE_STATS |
| }; |
| |
| private static final int[] APP_OPS_OP_CODES = new int[] { |
| AppOpsManager.OP_GET_USAGE_STATS |
| }; |
| |
| private static class PackageEntry implements Comparable<PackageEntry> { |
| public PackageEntry(String packageName, UserHandle userHandle) { |
| this.packageName = packageName; |
| this.appOpMode = AppOpsManager.MODE_DEFAULT; |
| this.userHandle = userHandle; |
| } |
| |
| @Override |
| public int compareTo(PackageEntry another) { |
| return packageName.compareTo(another.packageName); |
| } |
| |
| final String packageName; |
| PackageInfo packageInfo; |
| boolean permissionGranted; |
| int appOpMode; |
| UserHandle userHandle; |
| |
| SwitchPreference preference; |
| } |
| |
| /** |
| * Fetches the list of Apps that are requesting access to the UsageStats API and updates |
| * the PreferenceScreen with the results when complete. |
| */ |
| private class AppsRequestingAccessFetcher extends |
| AsyncTask<Void, Void, SparseArray<ArrayMap<String, PackageEntry>>> { |
| |
| private final Context mContext; |
| private final PackageManager mPackageManager; |
| private final IPackageManager mIPackageManager; |
| private final UserManager mUserManager; |
| private final List<UserHandle> mProfiles; |
| |
| public AppsRequestingAccessFetcher(Context context) { |
| mContext = context; |
| mPackageManager = context.getPackageManager(); |
| mIPackageManager = ActivityThread.getPackageManager(); |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| mProfiles = mUserManager.getUserProfiles(); |
| } |
| |
| @Override |
| protected SparseArray<ArrayMap<String, PackageEntry>> doInBackground(Void... params) { |
| final String[] packages; |
| SparseArray<ArrayMap<String, PackageEntry>> entries; |
| try { |
| packages = mIPackageManager.getAppOpPermissionPackages( |
| Manifest.permission.PACKAGE_USAGE_STATS); |
| |
| if (packages == null) { |
| // No packages are requesting permission to use the UsageStats API. |
| return null; |
| } |
| |
| entries = new SparseArray<>(); |
| for (final UserHandle profile : mProfiles) { |
| final ArrayMap<String, PackageEntry> entriesForProfile = new ArrayMap<>(); |
| final int profileId = profile.getIdentifier(); |
| entries.put(profileId, entriesForProfile); |
| for (final String packageName : packages) { |
| final boolean isAvailable = mIPackageManager.isPackageAvailable(packageName, |
| profileId); |
| if (!shouldIgnorePackage(packageName) && isAvailable) { |
| final PackageEntry newEntry = new PackageEntry(packageName, profile); |
| entriesForProfile.put(packageName, newEntry); |
| } |
| } |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "PackageManager is dead. Can't get list of packages requesting " |
| + Manifest.permission.PACKAGE_USAGE_STATS); |
| return null; |
| } |
| |
| // Load the packages that have been granted the PACKAGE_USAGE_STATS permission. |
| try { |
| for (final UserHandle profile : mProfiles) { |
| final int profileId = profile.getIdentifier(); |
| final ArrayMap<String, PackageEntry> entriesForProfile = entries.get(profileId); |
| if (entriesForProfile == null) { |
| continue; |
| } |
| final List<PackageInfo> packageInfos = mIPackageManager |
| .getPackagesHoldingPermissions(PM_USAGE_STATS_PERMISSION, 0, profileId) |
| .getList(); |
| final int packageInfoCount = packageInfos != null ? packageInfos.size() : 0; |
| for (int i = 0; i < packageInfoCount; i++) { |
| final PackageInfo packageInfo = packageInfos.get(i); |
| final PackageEntry pe = entriesForProfile.get(packageInfo.packageName); |
| if (pe != null) { |
| pe.packageInfo = packageInfo; |
| pe.permissionGranted = true; |
| } |
| } |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "PackageManager is dead. Can't get list of packages granted " |
| + Manifest.permission.PACKAGE_USAGE_STATS); |
| return null; |
| } |
| |
| // Load the remaining packages that have requested but don't have the |
| // PACKAGE_USAGE_STATS permission. |
| for (final UserHandle profile : mProfiles) { |
| final int profileId = profile.getIdentifier(); |
| final ArrayMap<String, PackageEntry> entriesForProfile = entries.get(profileId); |
| if (entriesForProfile == null) { |
| continue; |
| } |
| int packageCount = entriesForProfile.size(); |
| for (int i = packageCount - 1; i >= 0; --i) { |
| final PackageEntry pe = entriesForProfile.valueAt(i); |
| if (pe.packageInfo == null) { |
| try { |
| pe.packageInfo = mIPackageManager.getPackageInfo(pe.packageName, 0, |
| profileId); |
| } catch (RemoteException e) { |
| // This package doesn't exist. This may occur when an app is |
| // uninstalled for one user, but it is not removed from the system. |
| entriesForProfile.removeAt(i); |
| } |
| } |
| } |
| } |
| |
| // Find out which packages have been granted permission from AppOps. |
| final List<AppOpsManager.PackageOps> packageOps = mAppOpsManager.getPackagesForOps( |
| APP_OPS_OP_CODES); |
| final int packageOpsCount = packageOps != null ? packageOps.size() : 0; |
| for (int i = 0; i < packageOpsCount; i++) { |
| final AppOpsManager.PackageOps packageOp = packageOps.get(i); |
| final int userId = UserHandle.getUserId(packageOp.getUid()); |
| if (!isThisUserAProfileOfCurrentUser(userId)) { |
| // This AppOp does not belong to any of this user's profiles. |
| continue; |
| } |
| |
| final ArrayMap<String, PackageEntry> entriesForProfile = entries.get(userId); |
| if (entriesForProfile == null) { |
| continue; |
| } |
| final PackageEntry pe = entriesForProfile.get(packageOp.getPackageName()); |
| if (pe == null) { |
| Log.w(TAG, "AppOp permission exists for package " + packageOp.getPackageName() |
| + " of user " + userId + |
| " but package doesn't exist or did not request UsageStats access"); |
| continue; |
| } |
| |
| if (packageOp.getOps().size() < 1) { |
| Log.w(TAG, "No AppOps permission exists for package " |
| + packageOp.getPackageName()); |
| continue; |
| } |
| |
| pe.appOpMode = packageOp.getOps().get(0).getMode(); |
| } |
| |
| return entries; |
| } |
| |
| @Override |
| protected void onPostExecute(SparseArray<ArrayMap<String, PackageEntry>> newEntries) { |
| mLastFetcherTask = null; |
| |
| if (getActivity() == null) { |
| // We must have finished the Activity while we were processing in the background. |
| return; |
| } |
| |
| if (newEntries == null) { |
| mPackageEntryMap.clear(); |
| mPreferenceScreen.removeAll(); |
| return; |
| } |
| |
| // Find the deleted entries and remove them from the PreferenceScreen. |
| final int oldProfileCount = mPackageEntryMap.size(); |
| for (int profileIndex = 0; profileIndex < oldProfileCount; ++profileIndex) { |
| final int profileId = mPackageEntryMap.keyAt(profileIndex); |
| final ArrayMap<String, PackageEntry> oldEntriesForProfile = mPackageEntryMap |
| .valueAt(profileIndex); |
| final int oldPackageCount = oldEntriesForProfile.size(); |
| |
| final ArrayMap<String, PackageEntry> newEntriesForProfile = newEntries.get( |
| profileId); |
| |
| for (int i = 0; i < oldPackageCount; i++) { |
| final PackageEntry oldPackageEntry = oldEntriesForProfile.valueAt(i); |
| |
| PackageEntry newPackageEntry = null; |
| if (newEntriesForProfile != null) { |
| newPackageEntry = newEntriesForProfile.get(oldPackageEntry.packageName); |
| } |
| if (newPackageEntry == null) { |
| // This package has been removed. |
| mPreferenceScreen.removePreference(oldPackageEntry.preference); |
| } else { |
| // This package already exists in the preference hierarchy, so reuse that |
| // Preference. |
| newPackageEntry.preference = oldPackageEntry.preference; |
| } |
| } |
| } |
| |
| // Now add new packages to the PreferenceScreen. |
| final int newProfileCount = newEntries.size(); |
| for (int profileIndex = 0; profileIndex < newProfileCount; ++profileIndex) { |
| final int profileId = newEntries.keyAt(profileIndex); |
| final ArrayMap<String, PackageEntry> newEntriesForProfile = newEntries.get( |
| profileId); |
| final int packageCount = newEntriesForProfile.size(); |
| for (int i = 0; i < packageCount; i++) { |
| final PackageEntry packageEntry = newEntriesForProfile.valueAt(i); |
| if (packageEntry.preference == null) { |
| packageEntry.preference = new SwitchPreference(mContext); |
| packageEntry.preference.setPersistent(false); |
| packageEntry.preference.setOnPreferenceChangeListener( |
| UsageAccessSettings.this); |
| mPreferenceScreen.addPreference(packageEntry.preference); |
| } |
| updatePreference(packageEntry); |
| } |
| } |
| mPackageEntryMap.clear(); |
| mPackageEntryMap = newEntries; |
| |
| // Add/remove headers if necessary. If there are package entries only for one user and |
| // that user is not the managed profile then do not show headers. |
| if (mPackageEntryMap.size() == 1 && |
| mPackageEntryMap.keyAt(0) == UserHandle.myUserId()) { |
| for (int i = 0; i < mCategoryHeaders.length; ++i) { |
| if (mCategoryHeaders[i] != null) { |
| mPreferenceScreen.removePreference(mCategoryHeaders[i]); |
| } |
| mCategoryHeaders[i] = null; |
| } |
| } else { |
| for (int i = 0; i < mCategoryHeaders.length; ++i) { |
| if (mCategoryHeaders[i] == null) { |
| final Preference preference = new Preference(mContext, null, |
| com.android.internal.R.attr.preferenceCategoryStyle, 0); |
| mCategoryHeaders[i] = preference; |
| preference.setTitle(mCategoryHeaderTitleResIds[i]); |
| preference.setEnabled(false); |
| mPreferenceScreen.addPreference(preference); |
| } |
| } |
| } |
| |
| // Sort preferences alphabetically within categories |
| int order = 0; |
| final int profileCount = mProfiles.size(); |
| for (int i = 0; i < profileCount; ++i) { |
| Preference header = mCategoryHeaders[i]; |
| if (header != null) { |
| header.setOrder(order++); |
| } |
| ArrayMap<String, PackageEntry> entriesForProfile = |
| mPackageEntryMap.get(mProfiles.get(i).getIdentifier()); |
| if (entriesForProfile != null) { |
| List<PackageEntry> sortedEntries = Collections.list( |
| Collections.enumeration(entriesForProfile.values())); |
| Collections.sort(sortedEntries); |
| for (PackageEntry pe : sortedEntries) { |
| pe.preference.setOrder(order++); |
| } |
| } |
| } |
| } |
| |
| private void updatePreference(PackageEntry pe) { |
| final int profileId = pe.userHandle.getIdentifier(); |
| // Set something as default |
| pe.preference.setEnabled(false); |
| pe.preference.setTitle(pe.packageName); |
| pe.preference.setIcon(mUserManager.getBadgedIconForUser(mPackageManager |
| .getDefaultActivityIcon(), pe.userHandle)); |
| try { |
| // Try setting real title and icon |
| final ApplicationInfo info = mIPackageManager.getApplicationInfo(pe.packageName, |
| 0 /* no flags */, profileId); |
| if (info != null) { |
| pe.preference.setEnabled(true); |
| pe.preference.setTitle(info.loadLabel(mPackageManager).toString()); |
| pe.preference.setIcon(mUserManager.getBadgedIconForUser(info.loadIcon( |
| mPackageManager), pe.userHandle)); |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "PackageManager is dead. Can't get app info for package " + |
| pe.packageName + " of user " + profileId); |
| // Keep going to update other parts of the preference |
| } |
| |
| pe.preference.setKey(pe.packageName); |
| Bundle extra = pe.preference.getExtras(); |
| extra.putInt(BUNDLE_KEY_PROFILEID, profileId); |
| |
| boolean check = false; |
| if (pe.appOpMode == AppOpsManager.MODE_ALLOWED) { |
| check = true; |
| } else if (pe.appOpMode == AppOpsManager.MODE_DEFAULT) { |
| // If the default AppOps mode is set, then fall back to |
| // whether the app has been granted permission by PackageManager. |
| check = pe.permissionGranted; |
| } |
| |
| if (check != pe.preference.isChecked()) { |
| pe.preference.setChecked(check); |
| } |
| } |
| |
| private boolean isThisUserAProfileOfCurrentUser(final int userId) { |
| final int profilesMax = mProfiles.size(); |
| for (int i = 0; i < profilesMax; ++i) { |
| if (mProfiles.get(i).getIdentifier() == userId) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| static boolean shouldIgnorePackage(String packageName) { |
| return packageName.equals("android") || packageName.equals("com.android.settings"); |
| } |
| |
| private AppsRequestingAccessFetcher mLastFetcherTask; |
| SparseArray<ArrayMap<String, PackageEntry>> mPackageEntryMap = new SparseArray<>(); |
| AppOpsManager mAppOpsManager; |
| PreferenceScreen mPreferenceScreen; |
| private Preference[] mCategoryHeaders = new Preference[2]; |
| private static int[] mCategoryHeaderTitleResIds = new int[] { |
| R.string.category_personal, |
| R.string.category_work |
| }; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| addPreferencesFromResource(R.xml.usage_access_settings); |
| mPreferenceScreen = getPreferenceScreen(); |
| mPreferenceScreen.setOrderingAsAdded(false); |
| mAppOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| |
| updateInterestedApps(); |
| mPackageMonitor.register(getActivity(), Looper.getMainLooper(), false); |
| } |
| |
| @Override |
| public void onPause() { |
| super.onPause(); |
| |
| mPackageMonitor.unregister(); |
| if (mLastFetcherTask != null) { |
| mLastFetcherTask.cancel(true); |
| mLastFetcherTask = null; |
| } |
| } |
| |
| private void updateInterestedApps() { |
| if (mLastFetcherTask != null) { |
| // Canceling can only fail for some obscure reason since mLastFetcherTask would be |
| // null if the task has already completed. So we ignore the result of cancel and |
| // spawn a new task to get fresh data. AsyncTask executes tasks serially anyways, |
| // so we are safe from running two tasks at the same time. |
| mLastFetcherTask.cancel(true); |
| } |
| |
| mLastFetcherTask = new AppsRequestingAccessFetcher(getActivity()); |
| mLastFetcherTask.execute(); |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| final String packageName = preference.getKey(); |
| final int profileId = preference.getExtras().getInt(BUNDLE_KEY_PROFILEID); |
| final PackageEntry pe = getPackageEntry(packageName, profileId); |
| if (pe == null) { |
| Log.w(TAG, "Preference change event handling failed"); |
| return false; |
| } |
| |
| if (!(newValue instanceof Boolean)) { |
| Log.w(TAG, "Preference change event for package " + packageName + " of user " + |
| profileId + " had non boolean value of type " + newValue.getClass().getName()); |
| return false; |
| } |
| |
| final int newMode = (Boolean) newValue ? |
| AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED; |
| |
| // Check if we need to do any work. |
| if (pe.appOpMode != newMode) { |
| if (newMode != AppOpsManager.MODE_ALLOWED) { |
| // Turning off the setting has no warning. |
| setNewMode(pe, newMode); |
| return true; |
| } |
| |
| // Turning on the setting has a Warning. |
| FragmentTransaction ft = getChildFragmentManager().beginTransaction(); |
| Fragment prev = getChildFragmentManager().findFragmentByTag("warning"); |
| if (prev != null) { |
| ft.remove(prev); |
| } |
| WarningDialogFragment.newInstance(pe).show(ft, "warning"); |
| return false; |
| } |
| return true; |
| } |
| |
| void setNewMode(PackageEntry pe, int newMode) { |
| mAppOpsManager.setMode(AppOpsManager.OP_GET_USAGE_STATS, |
| pe.packageInfo.applicationInfo.uid, pe.packageName, newMode); |
| pe.appOpMode = newMode; |
| } |
| |
| void allowAccess(String packageName, int profileId) { |
| final PackageEntry entry = getPackageEntry(packageName, profileId); |
| if (entry == null) { |
| Log.w(TAG, "Unable to give access"); |
| return; |
| } |
| |
| setNewMode(entry, AppOpsManager.MODE_ALLOWED); |
| entry.preference.setChecked(true); |
| } |
| |
| private PackageEntry getPackageEntry(String packageName, int profileId) { |
| ArrayMap<String, PackageEntry> entriesForProfile = mPackageEntryMap.get(profileId); |
| if (entriesForProfile == null) { |
| Log.w(TAG, "getPackageEntry fails for package " + packageName + " of user " + |
| profileId + ": user does not seem to be valid."); |
| return null; |
| } |
| final PackageEntry entry = entriesForProfile.get(packageName); |
| if (entry == null) { |
| Log.w(TAG, "getPackageEntry fails for package " + packageName + " of user " + |
| profileId + ": package does not exist."); |
| } |
| return entry; |
| } |
| |
| private final PackageMonitor mPackageMonitor = new PackageMonitor() { |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| updateInterestedApps(); |
| } |
| |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| updateInterestedApps(); |
| } |
| }; |
| |
| public static class WarningDialogFragment extends DialogFragment |
| implements DialogInterface.OnClickListener { |
| private static final String ARG_PACKAGE_NAME = "package"; |
| private static final String ARG_PROFILE_ID = "profileId"; |
| |
| public static WarningDialogFragment newInstance(PackageEntry pe) { |
| WarningDialogFragment dialog = new WarningDialogFragment(); |
| Bundle args = new Bundle(); |
| args.putString(ARG_PACKAGE_NAME, pe.packageName); |
| args.putInt(ARG_PROFILE_ID, pe.userHandle.getIdentifier()); |
| dialog.setArguments(args); |
| return dialog; |
| } |
| |
| @Override |
| public Dialog onCreateDialog(Bundle savedInstanceState) { |
| return new AlertDialog.Builder(getActivity()) |
| .setTitle(R.string.allow_usage_access_title) |
| .setMessage(R.string.allow_usage_access_message) |
| .setIconAttribute(android.R.attr.alertDialogIcon) |
| .setNegativeButton(R.string.cancel, this) |
| .setPositiveButton(android.R.string.ok, this) |
| .create(); |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| if (which == DialogInterface.BUTTON_POSITIVE) { |
| ((UsageAccessSettings) getParentFragment()).allowAccess( |
| getArguments().getString(ARG_PACKAGE_NAME), |
| getArguments().getInt(ARG_PROFILE_ID)); |
| } else { |
| dialog.cancel(); |
| } |
| } |
| } |
| } |