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-rw-r--r--src/org/traccar/protocol/Gt06ProtocolDecoder.java240
1 files changed, 128 insertions, 112 deletions
diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
index 07c95dc30..20b2c8eab 100644
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -218,158 +218,174 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
return position;
}
- @Override
- protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+ protected Object decodeBasic(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
- ChannelBuffer buf = (ChannelBuffer) msg;
+ int length = buf.readUnsignedByte();
+ int dataLength = length - 5;
+ int type = buf.readUnsignedByte();
+
+ if (type == MSG_LOGIN) {
+
+ String imei = ChannelBuffers.hexDump(buf.readBytes(8)).substring(1);
+ buf.readUnsignedShort(); // type
+
+ // Timezone offset
+ if (dataLength > 10) {
+ int extensionBits = buf.readUnsignedShort();
+ int hours = (extensionBits >> 4) / 100;
+ int minutes = (extensionBits >> 4) % 100;
+ int offset = (hours * 60 + minutes) * 60;
+ if ((extensionBits & 0x8) != 0) {
+ offset = -offset;
+ }
+ if (!forceTimeZone) {
+ timeZone.setRawOffset(offset * 1000);
+ }
+ }
- int header = buf.readShort();
+ if (getDeviceSession(channel, remoteAddress, imei) != null) {
+ buf.skipBytes(buf.readableBytes() - 6);
+ sendResponse(channel, type, buf.readUnsignedShort());
+ }
- if (header == 0x7878) {
+ } else {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position();
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setProtocol(getProtocolName());
- int length = buf.readUnsignedByte();
- int dataLength = length - 5;
- int type = buf.readUnsignedByte();
-
- if (type == MSG_LOGIN) {
-
- String imei = ChannelBuffers.hexDump(buf.readBytes(8)).substring(1);
- buf.readUnsignedShort(); // type
-
- // Timezone offset
- if (dataLength > 10) {
- int extensionBits = buf.readUnsignedShort();
- int hours = (extensionBits >> 4) / 100;
- int minutes = (extensionBits >> 4) % 100;
- int offset = (hours * 60 + minutes) * 60;
- if ((extensionBits & 0x8) != 0) {
- offset = -offset;
- }
- if (!forceTimeZone) {
- timeZone.setRawOffset(offset * 1000);
- }
+ if (type == MSG_LBS_EXTEND) {
+
+ DateBuilder dateBuilder = new DateBuilder(timeZone)
+ .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+ .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+
+ getLastLocation(position, dateBuilder.getDate());
+
+ int mcc = buf.readUnsignedShort();
+ int mnc = buf.readUnsignedByte();
+
+ Network network = new Network();
+ for (int i = 0; i < 7; i++) {
+ network.addCellTower(CellTower.from(
+ mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedMedium(), -buf.readUnsignedByte()));
}
+ position.setNetwork(network);
- if (getDeviceSession(channel, remoteAddress, imei) != null) {
- buf.skipBytes(buf.readableBytes() - 6);
- sendResponse(channel, type, buf.readUnsignedShort());
+ } else if (type == MSG_STRING) {
+
+ getLastLocation(position, null);
+
+ int commandLength = buf.readUnsignedByte();
+
+ if (commandLength > 0) {
+ buf.readUnsignedByte(); // server flag (reserved)
+ position.set(Position.KEY_COMMAND,
+ buf.readBytes(commandLength - 1).toString(StandardCharsets.US_ASCII));
}
- } else {
+ } else if (isSupported(type)) {
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
- if (deviceSession == null) {
- return null;
+ if (hasGps(type)) {
+ decodeGps(position, buf);
+ } else {
+ getLastLocation(position, null);
}
- Position position = new Position();
- position.setDeviceId(deviceSession.getDeviceId());
- position.setProtocol(getProtocolName());
+ if (hasLbs(type)) {
+ decodeLbs(position, buf, hasStatus(type));
+ }
- if (type == MSG_LBS_EXTEND) {
+ if (hasStatus(type)) {
+ decodeStatus(position, buf);
+ }
- DateBuilder dateBuilder = new DateBuilder(timeZone)
- .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
- .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+ if (type == MSG_GPS_LBS_1 && buf.readableBytes() == 4 + 6) {
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
+ }
- getLastLocation(position, dateBuilder.getDate());
+ } else {
- int mcc = buf.readUnsignedShort();
- int mnc = buf.readUnsignedByte();
+ buf.skipBytes(dataLength);
+ if (type != MSG_COMMAND_0 && type != MSG_COMMAND_1 && type != MSG_COMMAND_2) {
+ sendResponse(channel, type, buf.readUnsignedShort());
+ }
+ return null;
- Network network = new Network();
- for (int i = 0; i < 7; i++) {
- network.addCellTower(CellTower.from(
- mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedMedium(), -buf.readUnsignedByte()));
- }
- position.setNetwork(network);
+ }
- } else if (type == MSG_STRING) {
+ if (buf.readableBytes() > 6) {
+ buf.skipBytes(buf.readableBytes() - 6);
+ }
+ sendResponse(channel, type, buf.readUnsignedShort());
- getLastLocation(position, null);
+ return position;
- int commandLength = buf.readUnsignedByte();
+ }
- if (commandLength > 0) {
- buf.readUnsignedByte(); // server flag (reserved)
- position.set(Position.KEY_COMMAND,
- buf.readBytes(commandLength - 1).toString(StandardCharsets.US_ASCII));
- }
+ return null;
+ }
- } else if (isSupported(type)) {
+ protected Object decodeExtended(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
- if (hasGps(type)) {
- decodeGps(position, buf);
- } else {
- getLastLocation(position, null);
- }
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
- if (hasLbs(type)) {
- decodeLbs(position, buf, hasStatus(type));
- }
+ buf.readUnsignedShort(); // length
+ int type = buf.readUnsignedByte();
- if (hasStatus(type)) {
- decodeStatus(position, buf);
- }
+ if (type == MSG_INFO) {
+ int subType = buf.readUnsignedByte();
- if (type == MSG_GPS_LBS_1 && buf.readableBytes() == 4 + 6) {
- position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
- }
+ Position position = new Position();
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setProtocol(getProtocolName());
- } else {
+ getLastLocation(position, null);
- buf.skipBytes(dataLength);
- if (type != MSG_COMMAND_0 && type != MSG_COMMAND_1 && type != MSG_COMMAND_2) {
- sendResponse(channel, type, buf.readUnsignedShort());
- }
- return null;
+ if (subType == 0x00) {
- }
+ position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+ return position;
- if (buf.readableBytes() > 6) {
- buf.skipBytes(buf.readableBytes() - 6);
- }
- sendResponse(channel, type, buf.readUnsignedShort());
+ } else if (subType == 0x05) {
+ int flags = buf.readUnsignedByte();
+ position.set("door", BitUtil.check(flags, 0));
+ position.set(Position.PREFIX_IO + 1, BitUtil.check(flags, 2));
return position;
- }
+ } else if (subType == 0x0d) {
- } else if (header == 0x7979) {
+ buf.skipBytes(6);
+ return decodeFuelData(position, buf.toString(
+ buf.readerIndex(), buf.readableBytes() - 4 - 2, StandardCharsets.US_ASCII));
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
- if (deviceSession == null) {
- return null;
}
+ }
- buf.readUnsignedShort(); // length
- int type = buf.readUnsignedByte();
-
- if (type == MSG_INFO) {
- int subType = buf.readUnsignedByte();
+ return null;
+ }
- Position position = new Position();
- position.setDeviceId(deviceSession.getDeviceId());
- position.setProtocol(getProtocolName());
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
- getLastLocation(position, null);
+ ChannelBuffer buf = (ChannelBuffer) msg;
- if (subType == 0x00) {
- position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
- return position;
- } else if (subType == 0x05) {
- int flags = buf.readUnsignedByte();
- position.set("door", BitUtil.check(flags, 0));
- position.set(Position.PREFIX_IO + 1, BitUtil.check(flags, 2));
- return position;
- } else if (subType == 0x0d) {
- buf.skipBytes(6);
- return decodeFuelData(position, buf.toString(
- buf.readerIndex(), buf.readableBytes() - 4 - 2, StandardCharsets.US_ASCII));
- }
- }
+ int header = buf.readShort();
+ if (header == 0x7878) {
+ return decodeBasic(channel, remoteAddress, buf);
+ } else if (header == 0x7979) {
+ return decodeExtended(channel, remoteAddress, buf);
}
return null;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 21:57:52 +0000