From 9ca14dcccffc65b9c4c2683bc53e13b796fa1228 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Wed, 23 Jan 2019 00:11:11 -0800
Subject: Special GT06 LBS responses

---
 src/org/traccar/protocol/Gt06ProtocolDecoder.java  | 34 ++++++++++++++--------
 .../traccar/protocol/Gt06ProtocolDecoderTest.java  |  6 ++++
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
index f9c65f08b..18b3f508d 100644
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -67,7 +67,6 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_GPS_LBS_STATUS_3 = 0x27;
     public static final int MSG_LBS_MULTIPLE = 0x28;
     public static final int MSG_LBS_WIFI = 0x2C;
-    public static final int MSG_LBS_PHONE = 0x17;
     public static final int MSG_LBS_EXTEND = 0x18;
     public static final int MSG_LBS_STATUS = 0x19;
     public static final int MSG_GPS_PHONE = 0x1A;
@@ -389,7 +388,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
-    private Object decodeBasic(Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception {
+    private Object decodeBasic(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         int length = buf.readUnsignedByte();
         int dataLength = length - 5;
@@ -488,7 +487,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
         } else if (type == MSG_WIFI || type == MSG_WIFI_2) {
 
-            return decodeWifi(buf, deviceSession);
+            return decodeWifi(channel, buf, deviceSession, type);
 
         } else if (type == MSG_INFO) {
 
@@ -559,18 +558,19 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         return null;
     }
 
-    private Object decodeWifi(ByteBuf buf, DeviceSession deviceSession) throws Exception {
+    private Object decodeWifi(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
 
         Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
 
+        ByteBuf time = buf.readSlice(6);
         DateBuilder dateBuilder = new DateBuilder()
-                .setYear(BcdUtil.readInteger(buf, 2))
-                .setMonth(BcdUtil.readInteger(buf, 2))
-                .setDay(BcdUtil.readInteger(buf, 2))
-                .setHour(BcdUtil.readInteger(buf, 2))
-                .setMinute(BcdUtil.readInteger(buf, 2))
-                .setSecond(BcdUtil.readInteger(buf, 2));
+                .setYear(BcdUtil.readInteger(time, 2))
+                .setMonth(BcdUtil.readInteger(time, 2))
+                .setDay(BcdUtil.readInteger(time, 2))
+                .setHour(BcdUtil.readInteger(time, 2))
+                .setMinute(BcdUtil.readInteger(time, 2))
+                .setSecond(BcdUtil.readInteger(time, 2));
         getLastLocation(position, dateBuilder.getDate());
 
         Network network = new Network();
@@ -593,11 +593,21 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
         position.setNetwork(network);
 
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeByte(0);
+            response.writeByte(type);
+            response.writeBytes(time.resetReaderIndex());
+            response.writeByte('\r');
+            response.writeByte('\n');
+            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+        }
+
         return position;
     }
 
     private Object decodeBasicOther(Channel channel, ByteBuf buf,
-            DeviceSession deviceSession, int type, int dataLength) throws Exception {
+            DeviceSession deviceSession, int type, int dataLength) {
 
         Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
@@ -701,7 +711,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
-    private Object decodeExtended(Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception {
+    private Object decodeExtended(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
         if (deviceSession == null) {
diff --git a/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java b/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
index 8b7034ca8..6cc2d3f86 100644
--- a/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
@@ -16,6 +16,12 @@ public class Gt06ProtocolDecoderTest extends ProtocolTest {
         verifyNull(decoder, binary(
                 "78780D01086471700328358100093F040D0A"));
 
+        verifyNotNull(decoder, binary(
+                "7878006919012105090303028f01007549e05a00bc9c5c5a007a8d1a5a0d0a"));
+
+        verifyNotNull(decoder, binary(
+                "7878001719011910543607028f0100bc2e695a00bcb3635a00bc27c56400bc447b6400bc46c96400bc33ce6400bc64ca640d0a"));
+
         verifyAttributes(decoder, binary(
                 "797900de8c120b1502121b013137333d302c3232333d312c3238333d30303030303030302c3436333d30303030303035362c3437333d30303030303030662c3438333d30303030303031312c3242333d30303030303030302c3244333d30303030313839632c3335333d30303030313661382c3336333d30303032386163382c3339333d30303030303230612c3330333d30303030303561612c3439333d30303030303030302c3441333d4b4e4146323431434d4b353031343235352c3341333d30303030303338352c3530333d30303030c0041df0940f89c06700000000c800910d0a"));
 
-- 
cgit v1.2.3