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/*
* Copyright (C) 2019 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 android.telephony;
import android.annotation.CallSuper;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.app.Service;
import android.content.Intent;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteCallback;
import android.telephony.cdma.CdmaSmsCbProgramData;
import java.util.List;
import java.util.function.Consumer;
/**
* A service which exposes the cell broadcast handling module to the system.
* <p>
* To extend this class, you must declare the service in your manifest file to require the
* {@link android.Manifest.permission#BIND_CELL_BROADCAST_SERVICE} permission and include an intent
* filter with the {@link #CELL_BROADCAST_SERVICE_INTERFACE}.
* Implementations of this service should run in the phone process and with its UID.
* <p>
* For example:
* <pre>{@code
* <manifest xmlns:android="http://schemas.android.com/apk/res/android"
* android:sharedUserId="android.uid.phone">
* <service android:name=".MyCellBroadcastService"
* android:label="@string/service_name"
* android:process="com.android.phone"
* android:exported="true"
* android:permission="android.permission.BIND_CELL_BROADCAST_SERVICE">
* <intent-filter>
* <action android:name="android.telephony.CellBroadcastService" />
* </intent-filter>
* </service>
* </manifest>
* }</pre>
*
* @hide
*/
@SystemApi
public abstract class CellBroadcastService extends Service {
public static final String CELL_BROADCAST_SERVICE_INTERFACE =
"android.telephony.CellBroadcastService";
private final ICellBroadcastService.Stub mStubWrapper;
public CellBroadcastService() {
mStubWrapper = new ICellBroadcastServiceWrapper();
}
/**
* Handle a GSM cell broadcast SMS message forwarded from the system.
*
* @param slotIndex the index of the slot which received the message
* @param message the SMS PDU
*/
public abstract void onGsmCellBroadcastSms(int slotIndex, @NonNull byte[] message);
/**
* Handle a CDMA cell broadcast SMS message forwarded from the system.
*
* @param slotIndex the index of the slot which received the message
* @param bearerData the CDMA SMS bearer data
* @param serviceCategory the CDMA SCPT service category
*/
public abstract void onCdmaCellBroadcastSms(int slotIndex, @NonNull byte[] bearerData,
@CdmaSmsCbProgramData.Category int serviceCategory);
/**
* Handle a CDMA cell broadcast SMS message forwarded from the system.
*
* @param slotIndex the index of the slot which received the message
* @param smsCbProgramData the SMS CB program data of the message
* @param originatingAddress the originating address of the message, as a non-separated dial
* string
* @param callback a callback to run after each cell broadcast receiver has handled
* the SCP message. The bundle will contain a non-separated
* dial string as and an ArrayList of {@link CdmaSmsCbProgramResults}.
*/
public abstract void onCdmaScpMessage(int slotIndex,
@NonNull List<CdmaSmsCbProgramData> smsCbProgramData,
@NonNull String originatingAddress, @NonNull Consumer<Bundle> callback);
/**
* If overriding this method, call through to the super method for any unknown actions.
* {@inheritDoc}
*/
@Override
@CallSuper
@NonNull
public IBinder onBind(@Nullable Intent intent) {
return mStubWrapper;
}
/**
* A wrapper around ICellBroadcastService that forwards calls to implementations of
* {@link CellBroadcastService}.
*
* @hide
*/
public class ICellBroadcastServiceWrapper extends ICellBroadcastService.Stub {
/**
* Handle a GSM cell broadcast SMS.
*
* @param slotIndex the index of the slot which received the broadcast
* @param message the SMS message PDU
*/
@Override
public void handleGsmCellBroadcastSms(int slotIndex, byte[] message) {
CellBroadcastService.this.onGsmCellBroadcastSms(slotIndex, message);
}
/**
* Handle a CDMA cell broadcast SMS.
*
* @param slotIndex the index of the slot which received the broadcast
* @param bearerData the CDMA SMS bearer data
* @param serviceCategory the CDMA SCPT service category
*/
@Override
public void handleCdmaCellBroadcastSms(int slotIndex, byte[] bearerData,
int serviceCategory) {
CellBroadcastService.this.onCdmaCellBroadcastSms(slotIndex, bearerData,
serviceCategory);
}
/**
* Handle a CDMA Service Category Program message.
*
* @param slotIndex the index of the slot which received the message
* @param smsCbProgramData the SMS CB program data of the message
* @param originatingAddress the originating address of the message
* @param callback a callback to run after each cell broadcast receiver has
* handled the SCP message
*/
@Override
public void handleCdmaScpMessage(int slotIndex,
List<CdmaSmsCbProgramData> smsCbProgramData, String originatingAddress,
RemoteCallback callback) {
Consumer<Bundle> consumer = bundle -> {
callback.sendResult(bundle);
};
CellBroadcastService.this.onCdmaScpMessage(slotIndex, smsCbProgramData,
originatingAddress, consumer);
}
}
}
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