From 8f8d013c9d871eba003bcf34cb62f9d48fb3ee20 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Thu, 8 Oct 2020 17:47:34 -0700
Subject: Implement Polte API support

---
 .../java/org/traccar/protocol/PolteProtocol.java   | 39 ++++++++++
 .../org/traccar/protocol/PolteProtocolDecoder.java | 84 ++++++++++++++++++++++
 2 files changed, 123 insertions(+)
 create mode 100644 src/main/java/org/traccar/protocol/PolteProtocol.java
 create mode 100644 src/main/java/org/traccar/protocol/PolteProtocolDecoder.java

(limited to 'src/main/java/org/traccar')

diff --git a/src/main/java/org/traccar/protocol/PolteProtocol.java b/src/main/java/org/traccar/protocol/PolteProtocol.java
new file mode 100644
index 000000000..a3e548716
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/PolteProtocol.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2020 Anton Tananaev (anton@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.protocol;
+
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.HttpRequestDecoder;
+import io.netty.handler.codec.http.HttpResponseEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+
+public class PolteProtocol extends BaseProtocol {
+
+    public PolteProtocol() {
+        addServer(new TrackerServer(false, getName()) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+                pipeline.addLast(new HttpResponseEncoder());
+                pipeline.addLast(new HttpRequestDecoder());
+                pipeline.addLast(new HttpObjectAggregator(65535));
+                pipeline.addLast(new PolteProtocolDecoder(PolteProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
new file mode 100644
index 000000000..ce45abef6
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2020 Anton Tananaev (anton@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.protocol;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import org.traccar.BaseHttpProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.model.Position;
+
+import javax.json.Json;
+import javax.json.JsonObject;
+import java.io.StringReader;
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+public class PolteProtocolDecoder extends BaseHttpProtocolDecoder {
+
+    public PolteProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpRequest request = (FullHttpRequest) msg;
+        String content = request.content().toString(StandardCharsets.UTF_8);
+        JsonObject json = Json.createReader(new StringReader(content)).readObject();
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, json.getString("ueToken"));
+        if (deviceSession == null) {
+            sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
+            return null;
+        }
+
+        if (json.containsKey("location")) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            JsonObject location = json.getJsonObject("location");
+
+            position.setValid(true);
+            position.setTime(new Date(location.getInt("detected_at") * 1000L));
+            position.setLatitude(location.getJsonNumber("latitude").doubleValue());
+            position.setLongitude(location.getJsonNumber("longitude").doubleValue());
+            position.setAltitude(location.getJsonNumber("altitude").doubleValue());
+
+            if (json.containsKey("report")) {
+                JsonObject report = json.getJsonObject("report");
+                position.set(Position.KEY_EVENT, report.getInt("event"));
+                if (report.containsKey("battery")) {
+                    JsonObject battery = report.getJsonObject("battery");
+                    position.set(Position.KEY_BATTERY_LEVEL, battery.getInt("level"));
+                    position.set(Position.KEY_BATTERY, battery.getJsonNumber("voltage").doubleValue());
+                }
+            }
+
+            return position;
+
+        }
+
+        sendResponse(channel, HttpResponseStatus.OK);
+        return null;
+    }
+
+}
-- 
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