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/*
* Copyright (C) 2017 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.voicemail;
import android.Manifest.permission;
import android.content.Context;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import java.util.ArrayList;
import java.util.List;
/**
* Handles permission checking for the voicemail module. Currently "phone" and "sms" permissions are
* required.
*/
public class VoicemailPermissionHelper {
/** *_VOICEMAIL permissions are auto-granted by being the default dialer. */
private static final String[] VOICEMAIL_PERMISSIONS = {
permission.ADD_VOICEMAIL,
permission.WRITE_VOICEMAIL,
permission.READ_VOICEMAIL,
permission.READ_PHONE_STATE,
permission.SEND_SMS
};
/**
* Returns {@code true} if the app has all permissions required for the voicemail module to
* operate.
*/
public static boolean hasPermissions(Context context) {
return getMissingPermissions(context).isEmpty();
}
/** Returns a list of permission that is missing for the voicemail module to operate. */
@NonNull
public static List<String> getMissingPermissions(Context context) {
List<String> result = new ArrayList<>();
for (String permission : VOICEMAIL_PERMISSIONS) {
if (context.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
result.add(permission);
}
}
return result;
}
}