Support RFTRACK monitoring units

1 files changed, 115 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java
new file mode 100644
index 000000000..540c3ce0b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2022 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.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.netty.handler.codec.http.QueryStringDecoder;
+import org.traccar.BaseHttpProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+import java.io.StringReader;
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+
+public class RfTrackProtocolDecoder extends BaseHttpProtocolDecoder {
+
+    public RfTrackProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpRequest request = (FullHttpRequest) msg;
+        QueryStringDecoder decoder = new QueryStringDecoder(
+                request.content().toString(StandardCharsets.US_ASCII), false);
+        Map<String, List<String>> params = decoder.parameters();
+
+        Position position = new Position(getProtocolName());
+        Network network = new Network();
+
+        for (Map.Entry<String, List<String>> entry : params.entrySet()) {
+            for (String value : entry.getValue()) {
+                switch (entry.getKey()) {
+                    case "i":
+                        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
+                        if (deviceSession == null) {
+                            sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
+                            return null;
+                        }
+                        position.setDeviceId(deviceSession.getDeviceId());
+                        break;
+                    case "v":
+                        position.set(Position.KEY_VERSION_FW, value);
+                        break;
+                    case "t":
+                        position.setDeviceTime(new Date(Long.parseLong(value)));
+                        break;
+                    case "bat":
+                        position.set(Position.KEY_BATTERY_LEVEL, Integer.parseInt(value) & 0xff);
+                        break;
+                    case "gps":
+                        JsonObject location = Json.createReader(new StringReader(value)).readObject();
+                        position.setValid(true);
+                        position.setAccuracy(location.getJsonNumber("a").doubleValue());
+                        position.setLongitude(location.getJsonNumber("x").doubleValue());
+                        position.setLatitude(location.getJsonNumber("y").doubleValue());
+                        position.setAltitude(location.getJsonNumber("z").doubleValue());
+                        position.setFixTime(new Date(location.getJsonNumber("t").longValue()));
+                        break;
+                    case "gsm":
+                        JsonObject cellInfo = Json.createReader(new StringReader(value)).readObject();
+                        int mcc = cellInfo.getInt("c");
+                        int mnc = cellInfo.getInt("n");
+                        JsonArray cells = cellInfo.getJsonArray("b");
+                        for (int i = 0; i < cells.size(); i++) {
+                            JsonObject cell = cells.getJsonObject(i);
+                            network.addCellTower(CellTower.from(
+                                    mcc, mnc, cell.getInt("l"), cell.getInt("c"), cell.getInt("b")));
+                        }
+                        break;
+                    default:
+                        break;
+                }
+            }
+        }
+
+        if (position.getFixTime() == null) {
+            getLastLocation(position, position.getDeviceTime());
+        }
+
+        if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
+            position.setNetwork(network);
+        }
+
+        sendResponse(channel, HttpResponseStatus.OK, Unpooled.copiedBuffer("{}", StandardCharsets.UTF_8));
+        return position;
+    }
+
+}