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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.voicemail.impl.sms;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.support.annotation.MainThread;
import android.support.annotation.Nullable;
import android.support.annotation.WorkerThread;
import android.telecom.PhoneAccountHandle;
import android.telephony.SmsManager;
import android.telephony.VisualVoicemailSms;
import com.android.voicemail.impl.Assert;
import com.android.voicemail.impl.OmtpConstants;
import com.android.voicemail.impl.OmtpService;
import com.android.voicemail.impl.OmtpVvmCarrierConfigHelper;
import com.android.voicemail.impl.VvmLog;
import com.android.voicemail.impl.protocol.VisualVoicemailProtocol;
import java.io.Closeable;
import java.io.IOException;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
/** Intercepts a incoming STATUS SMS with a blocking call. */
@SuppressWarnings("AndroidApiChecker") /* CompletableFuture is java8*/
@TargetApi(VERSION_CODES.O)
public class StatusSmsFetcher extends BroadcastReceiver implements Closeable {
private static final String TAG = "VvmStatusSmsFetcher";
private static final long STATUS_SMS_TIMEOUT_MILLIS = 60_000;
private static final String ACTION_REQUEST_SENT_INTENT =
"com.android.voicemailomtp.sms.REQUEST_SENT";
private static final int ACTION_REQUEST_SENT_REQUEST_CODE = 0;
private CompletableFuture<Bundle> future = new CompletableFuture<>();
private final Context context;
private final PhoneAccountHandle phoneAccountHandle;
public StatusSmsFetcher(Context context, PhoneAccountHandle phoneAccountHandle) {
this.context = context;
this.phoneAccountHandle = phoneAccountHandle;
IntentFilter filter = new IntentFilter(ACTION_REQUEST_SENT_INTENT);
filter.addAction(OmtpService.ACTION_SMS_RECEIVED);
context.registerReceiver(this, filter);
}
@Override
public void close() throws IOException {
context.unregisterReceiver(this);
}
@WorkerThread
@Nullable
public Bundle get()
throws InterruptedException, ExecutionException, TimeoutException, CancellationException {
Assert.isNotMainThread();
return future.get(STATUS_SMS_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
}
public PendingIntent getSentIntent() {
Intent intent = new Intent(ACTION_REQUEST_SENT_INTENT);
intent.setPackage(context.getPackageName());
// Because the receiver is registered dynamically, implicit intent must be used.
// There should only be a single status SMS request at a time.
return PendingIntent.getBroadcast(
context, ACTION_REQUEST_SENT_REQUEST_CODE, intent, PendingIntent.FLAG_CANCEL_CURRENT);
}
@Override
@MainThread
public void onReceive(Context context, Intent intent) {
Assert.isMainThread();
if (ACTION_REQUEST_SENT_INTENT.equals(intent.getAction())) {
int resultCode = getResultCode();
if (resultCode == Activity.RESULT_OK) {
VvmLog.d(TAG, "Request SMS successfully sent");
return;
}
VvmLog.e(TAG, "Request SMS send failed: " + sentSmsResultToString(resultCode));
future.cancel(true);
return;
}
VisualVoicemailSms sms = intent.getExtras().getParcelable(OmtpService.EXTRA_VOICEMAIL_SMS);
if (!phoneAccountHandle.equals(sms.getPhoneAccountHandle())) {
return;
}
String eventType = sms.getPrefix();
if (eventType.equals(OmtpConstants.STATUS_SMS_PREFIX)) {
future.complete(sms.getFields());
return;
}
if (eventType.equals(OmtpConstants.SYNC_SMS_PREFIX)) {
return;
}
VvmLog.i(
TAG,
"VVM SMS with event " + eventType + " received, attempting to translate to STATUS SMS");
OmtpVvmCarrierConfigHelper helper = new OmtpVvmCarrierConfigHelper(context, phoneAccountHandle);
VisualVoicemailProtocol protocol = helper.getProtocol();
if (protocol == null) {
return;
}
Bundle translatedBundle = protocol.translateStatusSmsBundle(helper, eventType, sms.getFields());
if (translatedBundle != null) {
VvmLog.i(TAG, "Translated to STATUS SMS");
future.complete(translatedBundle);
}
}
private static String sentSmsResultToString(int resultCode) {
switch (resultCode) {
case Activity.RESULT_OK:
return "OK";
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
return "RESULT_ERROR_GENERIC_FAILURE";
case SmsManager.RESULT_ERROR_NO_SERVICE:
return "RESULT_ERROR_GENERIC_FAILURE";
case SmsManager.RESULT_ERROR_NULL_PDU:
return "RESULT_ERROR_GENERIC_FAILURE";
case SmsManager.RESULT_ERROR_RADIO_OFF:
return "RESULT_ERROR_GENERIC_FAILURE";
default:
return "UNKNOWN CODE: " + resultCode;
}
}
}
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