From 517382ccc972d6d1ba2b5fd2d912cc6e5ac83902 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 23 Sep 2018 15:09:57 +1200
Subject: Implement push notifications

---
 setup/default.xml                                  | 12 ++-
 .../traccar/notification/NotificatorManager.java   |  4 +
 .../traccar/notificators/NotificatorFirebase.java  | 85 ++++++++++++++++++++++
 3 files changed, 94 insertions(+), 7 deletions(-)
 create mode 100644 src/org/traccar/notificators/NotificatorFirebase.java

diff --git a/setup/default.xml b/setup/default.xml
index 075414903..50cd7c596 100644
--- a/setup/default.xml
+++ b/setup/default.xml
@@ -4,7 +4,11 @@
 
 <properties>
 
-    <!-- SERVER CONFIG -->
+    <!--
+
+    DO NOT MODIFY THIS FILE. Use traccar.xml instead.
+
+    -->
 
     <entry key='web.enable'>true</entry>
     <entry key='web.port'>8082</entry>
@@ -34,12 +38,8 @@
 
     <entry key='commands.queueing'>true</entry>
 
-    <!-- DATABASE CONFIG -->
-
     <entry key='database.ignoreUnknown'>true</entry>
-
     <entry key='database.generateQueries'>true</entry>
-
     <entry key='database.changelog'>./schema/changelog-master.xml</entry>
  
     <entry key='database.loginUser'>
@@ -75,8 +75,6 @@
         SELECT * FROM tc_statistics WHERE captureTime BETWEEN :from AND :to ORDER BY captureTime
     </entry>
 
-    <!-- PROTOCOL CONFIG -->
-
     <entry key='gps103.port'>5001</entry>
     <entry key='tk103.port'>5002</entry>
     <entry key='gl100.port'>5003</entry>
diff --git a/src/org/traccar/notification/NotificatorManager.java b/src/org/traccar/notification/NotificatorManager.java
index 7e8a9dd0e..41678d65c 100644
--- a/src/org/traccar/notification/NotificatorManager.java
+++ b/src/org/traccar/notification/NotificatorManager.java
@@ -35,6 +35,7 @@ public final class NotificatorManager {
     private static final String DEFAULT_WEB_NOTIFICATOR = "org.traccar.notificators.NotificatorWeb";
     private static final String DEFAULT_MAIL_NOTIFICATOR = "org.traccar.notificators.NotificatorMail";
     private static final String DEFAULT_SMS_NOTIFICATOR = "org.traccar.notificators.NotificatorSms";
+    private static final String DEFAULT_FIREBASE_NOTIFICATOR = "org.traccar.notificators.NotificatorFirebase";
 
     private final Map<String, Notificator> notificators = new HashMap<>();
     private static final Notificator NULL_NOTIFICATOR = new NotificatorNull();
@@ -53,6 +54,9 @@ public final class NotificatorManager {
                 case "sms":
                     defaultNotificator = DEFAULT_SMS_NOTIFICATOR;
                     break;
+                case "firebase":
+                    defaultNotificator = DEFAULT_FIREBASE_NOTIFICATOR;
+                    break;
                 default:
                     break;
             }
diff --git a/src/org/traccar/notificators/NotificatorFirebase.java b/src/org/traccar/notificators/NotificatorFirebase.java
new file mode 100644
index 000000000..a01726889
--- /dev/null
+++ b/src/org/traccar/notificators/NotificatorFirebase.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2018 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.fasterxml.jackson.annotation.JsonProperty;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.Context;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.notification.NotificationFormatter;
+
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.InvocationCallback;
+
+public class NotificatorFirebase extends Notificator {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorFirebase.class);
+
+    private static final String URL = "https://fcm.googleapis.com/fcm/send";
+
+    private String key;
+
+    public static class Notification {
+        public String body;
+    }
+
+    public static class Message {
+        @JsonProperty("registration_ids")
+        public String[] tokens;
+        public Notification notification;
+    }
+
+    public NotificatorFirebase() {
+        key = Context.getConfig().getString("notificator.firebase.key");
+    }
+
+    @Override
+    public void sendSync(long userId, Event event, Position position) {
+        final User user = Context.getPermissionsManager().getUser(userId);
+        if (user.getAttributes().containsKey("notificationTokens")) {
+
+            Notification notification = new Notification();
+            notification.body = NotificationFormatter.formatShortMessage(userId, event, position).trim();
+
+            Message message = new Message();
+            message.tokens = user.getString("notificationTokens").split("[, ]");
+            message.notification = notification;
+
+            Context.getClient().target(URL).request()
+                    .header("Authorization", "key=" + key)
+                    .async().post(Entity.json(message), new InvocationCallback<Object>() {
+                @Override
+                public void completed(Object o) {
+                }
+
+                @Override
+                public void failed(Throwable throwable) {
+                    LOGGER.warn("Firebase notification error", throwable);
+                }
+            });
+        }
+    }
+
+    @Override
+    public void sendAsync(long userId, Event event, Position position) {
+        sendSync(userId, event, position);
+    }
+
+}
-- 
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