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/*
* Copyright (C) 2014 The CyanogenMod 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.systemui.statusbar.policy;
import android.app.AppOpsManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.UserHandle;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
/**
* A controller to manage changes to superuser-related states and update the views accordingly.
*/
public class SuControllerImpl implements SuController {
private static final String TAG = "SuControllerImpl";
private static final int[] mSuOpArray = new int[] {AppOpsManager.OP_SU};
private ArrayList<Callback> mCallbacks = new ArrayList<Callback>();
private AppOpsManager mAppOpsManager;
private List<String> mActiveSuSessions = new ArrayList<>();
public SuControllerImpl(Context context) {
mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(AppOpsManager.ACTION_SU_SESSION_CHANGED);
context.registerReceiverAsUser(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "Got change");
String action = intent.getAction();
if (AppOpsManager.ACTION_SU_SESSION_CHANGED.equals(action)) {
updateActiveSuSessions();
}
}
}, UserHandle.ALL, intentFilter, null, new Handler());
updateActiveSuSessions();
}
@Override
public void addCallback(Callback callback) {
mCallbacks.add(callback);
fireCallback(callback);
}
@Override
public void removeCallback(Callback callback) {
mCallbacks.remove(callback);
}
@Override
public boolean hasActiveSessions() {
synchronized (mActiveSuSessions) {
return mActiveSuSessions.size() > 0;
}
}
private void fireCallback(Callback callback) {
callback.onSuSessionsChanged();
}
private void fireCallbacks() {
for (Callback callback : mCallbacks) {
callback.onSuSessionsChanged();
}
}
// Return the list of package names that currently have an active su session
@Override
public List<String> getPackageNamesWithActiveSuSessions() {
List<String> packageNames = new ArrayList<>();
List<AppOpsManager.PackageOps> packages
= mAppOpsManager.getPackagesForOps(mSuOpArray);
// AppOpsManager can return null when there is no requested data.
if (packages != null) {
final int numPackages = packages.size();
for (int packageInd = 0; packageInd < numPackages; packageInd++) {
AppOpsManager.PackageOps packageOp = packages.get(packageInd);
List<AppOpsManager.OpEntry> opEntries = packageOp.getOps();
if (opEntries != null) {
final int numOps = opEntries.size();
for (int opInd = 0; opInd < numOps; opInd++) {
AppOpsManager.OpEntry opEntry = opEntries.get(opInd);
if (opEntry.getOp() == AppOpsManager.OP_SU) {
if (opEntry.isRunning()) {
packageNames.add(packageOp.getPackageName());
break;
}
}
}
}
}
}
return packageNames;
}
private synchronized void updateActiveSuSessions() {
List<String> newList = getPackageNamesWithActiveSuSessions();
synchronized (mActiveSuSessions) {
if (!newList.equals(mActiveSuSessions)) {
mActiveSuSessions.clear();
mActiveSuSessions.addAll(newList);
fireCallbacks();
}
}
}
}
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