From 3e6929ff362d53aea19516cb5b903d1d753e8ddc Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Wed, 3 Aug 2022 17:22:26 -0700
Subject: Add GalileoSky Iridium format

---
 .../traccar/protocol/GalileoProtocolDecoder.java   | 40 ++++++++++++++++++++--
 .../protocol/GalileoProtocolDecoderTest.java       |  3 ++
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
index 3ff8eb2fb..b1deded3b 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
@@ -20,6 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
+import org.traccar.helper.BitUtil;
 import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
@@ -229,7 +230,11 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
 
         int header = buf.readUnsignedByte();
         if (header == 0x01) {
-            return decodePositions(channel, remoteAddress, buf);
+            if (buf.getUnsignedMedium(buf.readerIndex() + 2) == 0x01001c) {
+                return decodeIridiumPosition(channel, remoteAddress, buf);
+            } else {
+                return decodePositions(channel, remoteAddress, buf);
+            }
         } else if (header == 0x07) {
             return decodePhoto(channel, remoteAddress, buf);
         }
@@ -237,7 +242,38 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         return null;
     }
 
-    private Object decodePositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+    private Position decodeIridiumPosition(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+
+        buf.readUnsignedShortLE(); // length
+
+        buf.skipBytes(3); // identification header
+        buf.readUnsignedIntLE(); // index
+
+        DeviceSession deviceSession = getDeviceSession(
+                channel, remoteAddress, buf.readSlice(15).toString(StandardCharsets.US_ASCII));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        buf.readUnsignedByte(); // session status
+        buf.skipBytes(4); // reserved
+        position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
+
+        buf.skipBytes(3); // coordinates header
+        int flags = buf.readUnsignedByte();
+        double latitude = buf.readUnsignedByte() + buf.readUnsignedShortLE() / 60000.0;
+        double longitude = buf.readUnsignedByte() + buf.readUnsignedShortLE() / 60000.0;
+        position.setLatitude(BitUtil.check(flags, 1) ? -latitude : latitude);
+        position.setLongitude(BitUtil.check(flags, 0) ? -longitude : longitude);
+        position.setAccuracy(buf.readUnsignedIntLE());
+
+        return position;
+    }
+
+    private List<Position> decodePositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         int endIndex = (buf.readUnsignedShortLE() & 0x7fff) + buf.readerIndex();
 
diff --git a/src/test/java/org/traccar/protocol/GalileoProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/GalileoProtocolDecoderTest.java
index f9bdd6b42..f676b1cc1 100644
--- a/src/test/java/org/traccar/protocol/GalileoProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/GalileoProtocolDecoderTest.java
@@ -10,6 +10,9 @@ public class GalileoProtocolDecoderTest extends ProtocolTest {
 
         var decoder = inject(new GalileoProtocolDecoder(null));
 
+        verifyNotNull(decoder, binary(
+                "01006501001c05cf1f8133303032333430363939303130313000004a000062d8f3ee03000b000f85402088970000000602003503333030323334303639393031303130100000207af3d862300cbe08ee00acfaf001330000760634b301350840090a416b2f42920e"));
+
         verifyPositions(decoder, binary(
                 "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"));
 
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