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/*
* Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
* Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
*
* 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 org.traccar.notificators;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;
import com.google.firebase.messaging.AndroidConfig;
import com.google.firebase.messaging.AndroidNotification;
import com.google.firebase.messaging.ApnsConfig;
import com.google.firebase.messaging.Aps;
import com.google.firebase.messaging.FirebaseMessaging;
import com.google.firebase.messaging.FirebaseMessagingException;
import com.google.firebase.messaging.MulticastMessage;
import com.google.firebase.messaging.Notification;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.model.Event;
import org.traccar.model.Position;
import org.traccar.model.User;
import org.traccar.notification.MessageException;
import org.traccar.notification.NotificationFormatter;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
@Singleton
public class NotificatorFirebase implements Notificator {
private final NotificationFormatter notificationFormatter;
@Inject
public NotificatorFirebase(Config config, NotificationFormatter notificationFormatter) throws IOException {
this.notificationFormatter = notificationFormatter;
InputStream serviceAccount = new ByteArrayInputStream(
config.getString(Keys.NOTIFICATOR_FIREBASE_SERVICE_ACCOUNT).getBytes());
FirebaseOptions options = FirebaseOptions.builder()
.setCredentials(GoogleCredentials.fromStream(serviceAccount))
.build();
FirebaseApp.initializeApp(options);
}
@Override
public void send(User user, Event event, Position position) throws MessageException {
if (user.hasAttribute("notificationTokens")) {
var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
List<String> registrationTokens = Arrays.asList(user.getString("notificationTokens").split("[, ]"));
MulticastMessage message = MulticastMessage.builder()
.setNotification(Notification.builder()
.setTitle(shortMessage.getSubject())
.setBody(shortMessage.getBody())
.build())
.setAndroidConfig(AndroidConfig.builder()
.setNotification(AndroidNotification.builder()
.setSound("default")
.build())
.build())
.setApnsConfig(ApnsConfig.builder()
.setAps(Aps.builder()
.setSound("default")
.build())
.build())
.addAllTokens(registrationTokens)
.putData("eventId", String.valueOf(event.getId()))
.build();
try {
var result = FirebaseMessaging.getInstance().sendMulticast(message);
for (var response : result.getResponses()) {
if (!response.isSuccessful()) {
throw new MessageException(response.getException());
}
}
} catch (FirebaseMessagingException e) {
throw new MessageException(e);
}
}
}
}
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