Implement Satsol Sat-Lite protocol

4 files changed, 160 insertions, 0 deletions

diff --git a/setup/default.xml b/setup/default.xml
index 9203bf7bc..7662e286a 100644
--- a/setup/default.xml
+++ b/setup/default.xml
@@ -260,5 +260,6 @@
     <entry key='c2stek.port'>5181</entry>
     <entry key='nyitech.port'>5182</entry>
     <entry key='neos.port'>5183</entry>
+    <entry key='satsol.port'>5184</entry>
 
 </properties>
diff --git a/src/org/traccar/protocol/SatsolProtocol.java b/src/org/traccar/protocol/SatsolProtocol.java
new file mode 100644
index 000000000..cd8f33b96
--- /dev/null
+++ b/src/org/traccar/protocol/SatsolProtocol.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2019 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.LengthFieldBasedFrameDecoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+
+import java.nio.ByteOrder;
+
+public class SatsolProtocol extends BaseProtocol {
+
+    public SatsolProtocol() {
+        addServer(new TrackerServer(false, getName()) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+                pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.BIG_ENDIAN, 1400, 8, 2, 0, 0, true));
+                pipeline.addLast(new SatsolProtocolDecoder(SatsolProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/org/traccar/protocol/SatsolProtocolDecoder.java b/src/org/traccar/protocol/SatsolProtocolDecoder.java
new file mode 100644
index 000000000..e9e8e4c56
--- /dev/null
+++ b/src/org/traccar/protocol/SatsolProtocolDecoder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2019 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.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class SatsolProtocolDecoder extends BaseProtocolDecoder {
+
+    public SatsolProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.readUnsignedShortLE(); // checksum
+        buf.readUnsignedShortLE(); // preamble
+        long id = buf.readUnsignedIntLE();
+        buf.readUnsignedShortLE(); // length
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        List<Position> positions = new LinkedList<>();
+
+        while (buf.isReadable()) {
+
+            buf.readUnsignedShortLE(); // checksum
+            buf.readUnsignedShortLE(); // checksum
+            buf.readUnsignedShortLE(); // type
+            int length = buf.readUnsignedShortLE();
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
+            position.setLongitude(buf.readUnsignedIntLE() * 0.000001);
+            position.setLatitude(buf.readUnsignedIntLE() * 0.000001);
+            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
+            position.setAltitude(buf.readShortLE());
+            position.setCourse(buf.readUnsignedShortLE());
+            position.setValid(buf.readUnsignedByte() > 0);
+
+            position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+            position.set(Position.KEY_EVENT, buf.readUnsignedByte());
+
+            if (BitUtil.check(buf.readUnsignedByte(), 0)) {
+                position.set(Position.KEY_ARCHIVE, true);
+            }
+
+            positions.add(position);
+
+            buf.skipBytes(length);
+
+        }
+
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            buf.writeShortLE(0);
+            buf.writeShortLE(0x4CBF); // preamble
+            buf.writeIntLE((int) id);
+            buf.writeShortLE(0);
+            buf.setShortLE(0, Checksum.crc16(
+                    Checksum.CRC16_CCITT_FALSE, response.nioBuffer(2, response.readableBytes() - 2)));
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+        }
+
+        return positions;
+    }
+
+}
diff --git a/test/org/traccar/protocol/SatsolProtocolDecoderTest.java b/test/org/traccar/protocol/SatsolProtocolDecoderTest.java
new file mode 100644
index 000000000..acdb5a084
--- /dev/null
+++ b/test/org/traccar/protocol/SatsolProtocolDecoderTest.java
@@ -0,0 +1,18 @@
+package org.traccar.protocol;
+
+import org.junit.Test;
+import org.traccar.ProtocolTest;
+
+public class SatsolProtocolDecoderTest extends ProtocolTest {
+
+    @Test
+    public void testDecode() throws Exception {
+
+        SatsolProtocolDecoder decoder = new SatsolProtocolDecoder(null);
+
+        verifyPositions(decoder, binary(
+                "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"));
+
+    }
+
+}