From 30d920c2e49c4022af8590c7d200907cde16d1c9 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Thu, 7 Jul 2022 17:28:49 -0700
Subject: Decode Concox CRX1 serial

---
 .../java/org/traccar/protocol/Gt06ProtocolDecoder.java    | 15 ++++++++++-----
 .../org/traccar/protocol/Gt06ProtocolDecoderTest.java     |  4 ++++
 2 files changed, 14 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
index c53fbfe5a..63210b2fa 100644
--- a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -1004,11 +1004,16 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
             } else if (subType == 0x1b) {
 
-                buf.readUnsignedByte(); // header
-                buf.readUnsignedByte(); // type
-                position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(4)));
-                buf.readUnsignedByte(); // checksum
-                buf.readUnsignedByte(); // footer
+                if (Character.isLetter(buf.getUnsignedByte(buf.readerIndex()))) {
+                    String data = buf.readCharSequence(buf.readableBytes() - 6, StandardCharsets.US_ASCII).toString();
+                    position.set("serial", data.trim());
+                } else {
+                    buf.readUnsignedByte(); // header
+                    buf.readUnsignedByte(); // type
+                    position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(4)));
+                    buf.readUnsignedByte(); // checksum
+                    buf.readUnsignedByte(); // footer
+                }
                 return position;
 
             }
diff --git a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
index 5b355e4f5..8c54fe3e4 100644
--- a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
@@ -17,6 +17,10 @@ public class Gt06ProtocolDecoderTest extends ProtocolTest {
         verifyNull(decoder, binary(
                 "78780D01086471700328358100093F040D0A"));
 
+        verifyAttribute(decoder, binary(
+                "79790019941b524649443a3030384642324245424133390d0a000c14930d0a"),
+                "serial", "RFID:008FB2BEBA39");
+
         verifyAttribute(decoder, binary(
                 "7878241216040e102c22cf00915ffb04c6016300195a02d402283b00753f400571040001dda4880d0a"),
                 Position.KEY_IGNITION, false);
-- 
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