aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/notificators/NotificatorFirebase.java
blob: d80354d7d52383c5bd1fce3239bb4d0a418994c0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
/*
 * Copyright 2018 - 2023 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.MessagingErrorCode;
import com.google.firebase.messaging.MulticastMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.model.Event;
import org.traccar.model.Notification;
import org.traccar.model.Position;
import org.traccar.model.User;
import org.traccar.notification.MessageException;
import org.traccar.notification.NotificationFormatter;
import org.traccar.session.cache.CacheManager;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import org.traccar.storage.query.Columns;
import org.traccar.storage.query.Condition;
import org.traccar.storage.query.Request;

import javax.inject.Inject;
import javax.inject.Singleton;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;

@Singleton
public class NotificatorFirebase implements Notificator {

    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorFirebase.class);

    private final NotificationFormatter notificationFormatter;
    private final Storage storage;
    private final CacheManager cacheManager;

    @Inject
    public NotificatorFirebase(
            Config config, NotificationFormatter notificationFormatter,
            Storage storage, CacheManager cacheManager) throws IOException {

        this.notificationFormatter = notificationFormatter;
        this.storage = storage;
        this.cacheManager = cacheManager;

        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(Notification notification, User user, Event event, Position position) throws MessageException {
        if (user.hasAttribute("notificationTokens")) {

            var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");

            List<String> registrationTokens = new ArrayList<>(
                    Arrays.asList(user.getString("notificationTokens").split("[, ]")));

            MulticastMessage message = MulticastMessage.builder()
                    .setNotification(com.google.firebase.messaging.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);
                List<String> failedTokens = new LinkedList<>();
                var iterator = result.getResponses().listIterator();
                while (iterator.hasNext()) {
                    int index = iterator.nextIndex();
                    var response = iterator.next();
                    if (!response.isSuccessful()) {
                        MessagingErrorCode error = response.getException().getMessagingErrorCode();
                        if (error == MessagingErrorCode.INVALID_ARGUMENT || error == MessagingErrorCode.UNREGISTERED) {
                            failedTokens.add(registrationTokens.get(index));
                        }
                        LOGGER.warn("Firebase user {} error", user.getId(), response.getException());
                    }
                }
                if (!failedTokens.isEmpty()) {
                    registrationTokens.removeAll(failedTokens);
                    if (registrationTokens.isEmpty()) {
                        user.getAttributes().remove("notificationTokens");
                    } else {
                        user.set("notificationTokens", String.join(",", registrationTokens));
                    }
                    storage.updateObject(user, new Request(
                            new Columns.Include("attributes"),
                            new Condition.Equals("id", user.getId())));
                    cacheManager.updateOrInvalidate(true, user);
                }
            } catch (FirebaseMessagingException | StorageException e) {
                LOGGER.warn("Firebase error", e);
            }
        }
    }

}