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/*
* 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.settingslib.applications;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.PermissionGroupInfo;
import android.content.pm.PermissionInfo;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.ShapeDrawable;
import android.os.AsyncTask;
import android.os.Build;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.ArrayMap;
import android.util.Log;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
public class PermissionsInfo {
private static final String TAG = "PermissionsInfo";
private final PackageManager mPm;
private final ArrayList<PermissionGroup> mGroups = new ArrayList<>();
private final Map<String, PermissionGroup> mGroupLookup = new ArrayMap<>();
private final Callback mCallback;
private final Context mContext;
// Count of apps that request runtime permissions.
private int mRuntimePermAppsCt;
// Count of apps that are granted runtime permissions.
private int mRuntimePermAppsGrantedCt;
public PermissionsInfo(Context context, Callback callback) {
mContext = context;
mPm = context.getPackageManager();
mCallback = callback;
new PermissionsLoader().execute();
}
public List<PermissionGroup> getGroups() {
synchronized (mGroups) {
return new ArrayList<>(mGroups);
}
}
public int getRuntimePermAppsCount() {
return mRuntimePermAppsCt;
}
public int getRuntimePermAppsGrantedCount() {
return mRuntimePermAppsGrantedCt;
}
private PermissionGroup getOrCreateGroup(String permission) {
PermissionGroup group = mGroupLookup.get(permission);
if (group == null) {
// Some permissions don't have a group, in that case treat them like a group
// and create their own PermissionGroup (only if they are runtime).
try {
PermissionInfo info = mPm.getPermissionInfo(permission, 0);
if (info.protectionLevel == PermissionInfo.PROTECTION_DANGEROUS) {
group = new PermissionGroup();
// TODO: Add default permission icon.
group.icon = info.icon != 0 ? info.loadIcon(mPm) : new ShapeDrawable();
group.name = info.name;
group.label = info.loadLabel(mPm).toString();
mGroups.add(group);
mGroupLookup.put(permission, group);
}
} catch (NameNotFoundException e) {
Log.w(TAG, "Unknown permission " + permission, e);
}
}
return group;
}
private class PermissionsLoader extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
List<PermissionGroupInfo> groups =
mPm.getAllPermissionGroups(PackageManager.GET_META_DATA);
// Get the groups.
for (PermissionGroupInfo groupInfo : groups) {
PermissionGroup group = new PermissionGroup();
// TODO: Add default permission icon.
group.icon = groupInfo.icon != 0 ? groupInfo.loadIcon(mPm) : new ShapeDrawable();
group.name = groupInfo.name;
group.label = groupInfo.loadLabel(mPm).toString();
synchronized (mGroups) {
mGroups.add(group);
}
}
// Load permissions and which are runtime.
for (PermissionGroup group : mGroups) {
try {
List<PermissionInfo> permissions =
mPm.queryPermissionsByGroup(group.name, 0);
for (PermissionInfo info : permissions) {
if (info.protectionLevel != PermissionInfo.PROTECTION_DANGEROUS) continue;
mGroupLookup.put(info.name, group);
}
} catch (NameNotFoundException e) {
Log.w(TAG, "Problem getting permissions", e);
}
}
// Load granted info.
for (UserHandle user : UserManager.get(mContext).getUserProfiles()) {
List<PackageInfo> allApps = mPm.getInstalledPackages(
PackageManager.GET_PERMISSIONS, user.getIdentifier());
for (PackageInfo info : allApps) {
if (info.applicationInfo.targetSdkVersion <= Build.VERSION_CODES.LOLLIPOP_MR1
|| info.requestedPermissions == null) {
continue;
}
final int N = info.requestedPermissionsFlags.length;
boolean appHasRuntimePerms = false;
boolean appGrantedRuntimePerms = false;
for (int i = 0; i < N; i++) {
boolean granted = (info.requestedPermissionsFlags[i]
& PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0;
PermissionGroup group = getOrCreateGroup(info.requestedPermissions[i]);
String key = Integer.toString(info.applicationInfo.uid);
if (group != null && !group.possibleApps.contains(key)) {
appHasRuntimePerms = true;
group.possibleApps.add(key);
if (granted) {
appGrantedRuntimePerms = true;
group.grantedApps.add(key);
}
}
}
if (appHasRuntimePerms) {
mRuntimePermAppsCt++;
if (appGrantedRuntimePerms) {
mRuntimePermAppsGrantedCt++;
}
}
}
}
Collections.sort(mGroups);
return null;
}
@Override
protected void onPostExecute(Void result) {
mCallback.onPermissionLoadComplete();
}
}
public static class PermissionGroup implements Comparable<PermissionGroup> {
public final List<String> possibleApps = new ArrayList<>();
public final List<String> grantedApps = new ArrayList<>();
public String name;
public String label;
public Drawable icon;
@Override
public int compareTo(PermissionGroup another) {
return label.compareTo(another.label);
}
}
public interface Callback {
void onPermissionLoadComplete();
}
}
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