| /* |
| * Copyright (C) 2022 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.wifi; |
| |
| import static android.Manifest.permission.ACCESS_FINE_LOCATION; |
| import static android.Manifest.permission.ACCESS_WIFI_STATE; |
| import static android.content.pm.PackageManager.PERMISSION_GRANTED; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.IActivityManager; |
| import android.content.pm.PackageManager; |
| import android.os.RemoteException; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| /** |
| * Helper class to check Wi-Fi permissions. |
| */ |
| public class WifiPermissionChecker { |
| |
| private static final String TAG = "WifiPermChecker"; |
| |
| private IActivityManager mActivityManager; |
| private PackageManager mPackageManager; |
| private String mLaunchedPackage; |
| |
| public WifiPermissionChecker(Activity activity) { |
| this(activity, ActivityManager.getService()); |
| } |
| |
| public WifiPermissionChecker(Activity activity, IActivityManager activityManager) { |
| mActivityManager = activityManager; |
| mPackageManager = activity.getPackageManager(); |
| mLaunchedPackage = getLaunchedFromPackage(activity); |
| } |
| |
| /** |
| * Returns the launched package name |
| */ |
| public String getLaunchedPackage() { |
| return mLaunchedPackage; |
| } |
| |
| /** |
| * Returns whether the launched package can access Wi-Fi information |
| */ |
| public boolean canAccessWifiState() { |
| return checkPermission(ACCESS_WIFI_STATE); |
| } |
| |
| /** |
| * Returns whether the launched package can access precise location |
| */ |
| public boolean canAccessFineLocation() { |
| return checkPermission(ACCESS_FINE_LOCATION); |
| } |
| |
| private boolean checkPermission(String permission) { |
| if (mPackageManager == null || TextUtils.isEmpty(mLaunchedPackage)) { |
| Log.e(TAG, "Failed to check package permission!" |
| + " {PackageManager:" + mPackageManager |
| + ", LaunchedPackage:" + mLaunchedPackage + "}"); |
| return false; |
| } |
| |
| if (mPackageManager.checkPermission(permission, mLaunchedPackage) == PERMISSION_GRANTED) { |
| return true; |
| } |
| |
| Log.w(TAG, "The launched package does not have the required permission!" |
| + " {LaunchedPackage:" + mLaunchedPackage + ", Permission:" + permission + "}"); |
| return false; |
| } |
| |
| private String getLaunchedFromPackage(Activity activity) { |
| try { |
| return mActivityManager.getLaunchedFromPackage(activity.getActivityToken()); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Can not get the launched package from activity manager!"); |
| return null; |
| } |
| } |
| } |