| /* |
| * Copyright (C) 2015 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.packageinstaller.permission.model; |
| |
| import android.app.LoaderManager; |
| import android.app.LoaderManager.LoaderCallbacks; |
| import android.content.AsyncTaskLoader; |
| import android.content.Context; |
| import android.content.Loader; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageItemInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PermissionGroupInfo; |
| import android.content.pm.PermissionInfo; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.util.ArraySet; |
| |
| import com.android.packageinstaller.R; |
| import com.android.packageinstaller.permission.utils.Utils; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| public final class PermissionGroups implements LoaderCallbacks<List<PermissionGroup>> { |
| private final ArrayList<PermissionGroup> mGroups = new ArrayList<>(); |
| private final Context mContext; |
| private final LoaderManager mLoaderManager; |
| private final PermissionsGroupsChangeCallback mCallback; |
| |
| public interface PermissionsGroupsChangeCallback { |
| public void onPermissionGroupsChanged(); |
| } |
| |
| public PermissionGroups(Context context, LoaderManager loaderManager, |
| PermissionsGroupsChangeCallback callback) { |
| mContext = context; |
| mLoaderManager = loaderManager; |
| mCallback = callback; |
| } |
| |
| @Override |
| public Loader<List<PermissionGroup>> onCreateLoader(int id, Bundle args) { |
| return new PermissionsLoader(mContext); |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<List<PermissionGroup>> loader, |
| List<PermissionGroup> groups) { |
| if (mGroups.equals(groups)) { |
| return; |
| } |
| mGroups.clear(); |
| mGroups.addAll(groups); |
| mCallback.onPermissionGroupsChanged(); |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<List<PermissionGroup>> loader) { |
| mGroups.clear(); |
| mCallback.onPermissionGroupsChanged(); |
| } |
| |
| public void refresh() { |
| mLoaderManager.restartLoader(0, null, this); |
| mLoaderManager.getLoader(0).forceLoad(); |
| } |
| |
| public List<PermissionGroup> getGroups() { |
| return mGroups; |
| } |
| |
| public PermissionGroup getGroup(String name) { |
| for (PermissionGroup group : mGroups) { |
| if (group.getName().equals(name)) { |
| return group; |
| } |
| } |
| return null; |
| } |
| |
| private static final class PermissionsLoader extends AsyncTaskLoader<List<PermissionGroup>> { |
| |
| public PermissionsLoader(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public List<PermissionGroup> loadInBackground() { |
| List<PermissionGroup> groups = new ArrayList<>(); |
| Set<String> seenPermissions = new ArraySet<>(); |
| |
| |
| PackageManager packageManager = getContext().getPackageManager(); |
| List<PermissionGroupInfo> groupInfos = packageManager.getAllPermissionGroups(0); |
| |
| for (PermissionGroupInfo groupInfo : groupInfos) { |
| // Mare sure we respond to cancellation. |
| if (isLoadInBackgroundCanceled()) { |
| return Collections.emptyList(); |
| } |
| |
| // Get the permissions in this group. |
| final List<PermissionInfo> groupPermissions; |
| try { |
| groupPermissions = packageManager.queryPermissionsByGroup(groupInfo.name, 0); |
| } catch (PackageManager.NameNotFoundException e) { |
| continue; |
| } |
| |
| boolean hasRuntimePermissions = false; |
| |
| // Cache seen permissions and see if group has runtime permissions. |
| for (PermissionInfo groupPermission : groupPermissions) { |
| seenPermissions.add(groupPermission.name); |
| if (groupPermission.protectionLevel == PermissionInfo.PROTECTION_DANGEROUS |
| && (groupPermission.flags & PermissionInfo.FLAG_INSTALLED) != 0 |
| && (groupPermission.flags & PermissionInfo.FLAG_HIDDEN) == 0) { |
| hasRuntimePermissions = true; |
| } |
| } |
| |
| // No runtime permissions - not interesting for us. |
| if (!hasRuntimePermissions) { |
| continue; |
| } |
| |
| CharSequence label = loadItemInfoLabel(groupInfo); |
| Drawable icon = loadItemInfoIcon(groupInfo); |
| |
| // Create the group and add to the list. |
| PermissionGroup group = new PermissionGroup(groupInfo.name, |
| groupInfo.packageName, label, icon); |
| groups.add(group); |
| } |
| |
| |
| // Make sure we add groups for lone runtime permissions. |
| List<PackageInfo> installedPackages = getContext().getPackageManager() |
| .getInstalledPackages(PackageManager.GET_PERMISSIONS); |
| |
| |
| // We will filter out permissions that no package requests. |
| Set<String> requestedPermissions = new ArraySet<>(); |
| for (PackageInfo installedPackage : installedPackages) { |
| if (installedPackage.requestedPermissions == null) { |
| continue; |
| } |
| for (String requestedPermission : installedPackage.requestedPermissions) { |
| requestedPermissions.add(requestedPermission); |
| } |
| } |
| |
| for (PackageInfo installedPackage : installedPackages) { |
| if (installedPackage.permissions == null) { |
| continue; |
| } |
| |
| for (PermissionInfo permissionInfo : installedPackage.permissions) { |
| // If we have handled this permission, no more work to do. |
| if (!seenPermissions.add(permissionInfo.name)) { |
| continue; |
| } |
| |
| // We care only about installed runtime permissions. |
| if (permissionInfo.protectionLevel != PermissionInfo.PROTECTION_DANGEROUS |
| || (permissionInfo.flags & PermissionInfo.FLAG_INSTALLED) == 0) { |
| continue; |
| } |
| |
| // If no app uses this permission, |
| if (!requestedPermissions.contains(permissionInfo.name)) { |
| continue; |
| } |
| |
| CharSequence label = loadItemInfoLabel(permissionInfo); |
| Drawable icon = loadItemInfoIcon(permissionInfo); |
| |
| // Create the group and add to the list. |
| PermissionGroup group = new PermissionGroup(permissionInfo.name, |
| permissionInfo.packageName, label, icon); |
| groups.add(group); |
| } |
| } |
| |
| Collections.sort(groups); |
| return groups; |
| } |
| |
| private CharSequence loadItemInfoLabel(PackageItemInfo itemInfo) { |
| CharSequence label = itemInfo.loadLabel(getContext().getPackageManager()); |
| if (label == null) { |
| label = itemInfo.name; |
| } |
| return label; |
| } |
| |
| private Drawable loadItemInfoIcon(PackageItemInfo itemInfo) { |
| final Drawable icon; |
| if (itemInfo.icon > 0) { |
| icon = Utils.loadDrawable(getContext().getPackageManager(), |
| itemInfo.packageName, itemInfo.icon); |
| } else { |
| icon = getContext().getDrawable(R.drawable.ic_perm_device_info); |
| } |
| return icon; |
| } |
| } |
| } |