Implement Icomera Moovbox protocol

2 files changed, 145 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/protocol/MoovboxProtocol.java b/src/main/java/org/traccar/protocol/MoovboxProtocol.java
new file mode 100644
index 000000000..7b554266f
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MoovboxProtocol.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 MoovboxProtocol extends BaseProtocol {
+
+    public MoovboxProtocol() {
+        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 MoovboxProtocolDecoder(MoovboxProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
new file mode 100644
index 000000000..1c8cde8a2
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
@@ -0,0 +1,106 @@
+/*
+ * 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 com.fasterxml.jackson.databind.util.ByteBufferBackedInputStream;
+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 org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+import javax.xml.xpath.XPathFactory;
+import java.net.SocketAddress;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class MoovboxProtocolDecoder extends BaseHttpProtocolDecoder {
+
+    private final DocumentBuilder documentBuilder;
+    private final XPath xPath;
+    private final XPathExpression messageExpression;
+
+    public MoovboxProtocolDecoder(Protocol protocol) {
+        super(protocol);
+        try {
+            DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
+            builderFactory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
+            builderFactory.setFeature("http://xml.org/sax/features/external-general-entities", false);
+            builderFactory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
+            builderFactory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
+            builderFactory.setXIncludeAware(false);
+            builderFactory.setExpandEntityReferences(false);
+            documentBuilder = builderFactory.newDocumentBuilder();
+            xPath = XPathFactory.newInstance().newXPath();
+            messageExpression = xPath.compile("//gps/coordinates/coordinate");
+        } catch (ParserConfigurationException | XPathExpressionException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpRequest request = (FullHttpRequest) msg;
+
+        Document document = documentBuilder.parse(new ByteBufferBackedInputStream(request.content().nioBuffer()));
+
+        String id = document.getDocumentElement().getAttribute("id");
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        NodeList nodes = (NodeList) messageExpression.evaluate(document, XPathConstants.NODESET);
+        List<Position> positions = new LinkedList<>();
+
+        for (int i = 0; i < nodes.getLength(); i++) {
+            Node node = nodes.item(i);
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            position.setValid(true);
+            position.setTime(new Date(Long.parseLong(xPath.evaluate("time", node)) * 1000));
+            position.setLatitude(Double.parseDouble(xPath.evaluate("latitude", node)));
+            position.setLongitude(Double.parseDouble(xPath.evaluate("longitude", node)));
+            position.setAltitude(Double.parseDouble(xPath.evaluate("altitude", node)));
+            position.setSpeed(Double.parseDouble(xPath.evaluate("speed", node)));
+
+            position.set(Position.KEY_SATELLITES, Integer.parseInt(xPath.evaluate("satellites", node)));
+
+            positions.add(position);
+        }
+
+        sendResponse(channel, HttpResponseStatus.OK);
+        return positions;
+    }
+
+}