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Diffstat (limited to 'src/main/java/org/traccar/protocol/TopinProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/TopinProtocolDecoder.java136
1 files changed, 136 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
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+/*
+ * 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.ByteBufUtil;
+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.model.Position;
+
+import java.net.SocketAddress;
+import java.util.TimeZone;
+
+public class TopinProtocolDecoder extends BaseProtocolDecoder {
+
+ public TopinProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_LOGIN = 0x01;
+ public static final int MSG_GPS = 0x10;
+ public static final int MSG_GPS_OFFLINE = 0x11;
+ public static final int MSG_STATUS = 0x13;
+
+ private void sendResponse(Channel channel, ByteBuf content) {
+ if (channel != null) {
+ ByteBuf response = Unpooled.buffer();
+ response.writeShort(0x7878);
+ response.writeBytes(content);
+ response.writeByte('\r');
+ response.writeByte('\n');
+ channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(2); // header
+ int length = buf.readUnsignedByte();
+
+ int type = buf.readUnsignedByte();
+
+ DeviceSession deviceSession;
+ if (type == MSG_LOGIN) {
+ String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1);
+ deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ ByteBuf content = Unpooled.buffer();
+ content.writeByte(type);
+ content.writeByte(deviceSession != null ? 0x01 : 0x44);
+ sendResponse(channel, content);
+ return null;
+ } else {
+ deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+ }
+
+ if (type == MSG_GPS || type == MSG_GPS_OFFLINE) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ ByteBuf time = buf.slice(buf.readerIndex(), 6);
+
+ Gt06ProtocolDecoder.decodeGps(position, buf, false, TimeZone.getTimeZone("UTC"));
+
+ ByteBuf content = Unpooled.buffer();
+ content.writeByte(0);
+ content.writeByte(type);
+ content.writeBytes(time);
+ sendResponse(channel, content);
+
+ return position;
+
+ } else if (type == MSG_STATUS) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, null);
+
+ int battery = buf.readUnsignedByte();
+ int firmware = buf.readUnsignedByte();
+ int timezone = buf.readUnsignedByte();
+ int interval = buf.readUnsignedByte();
+ int signal = 0;
+ if (length >= 7) {
+ signal = buf.readUnsignedByte();
+ position.set(Position.KEY_RSSI, signal);
+ }
+
+ position.set(Position.KEY_BATTERY_LEVEL, battery);
+ position.set(Position.KEY_VERSION_FW, firmware);
+
+ ByteBuf content = Unpooled.buffer();
+ content.writeByte(length);
+ content.writeByte(type);
+ content.writeByte(battery);
+ content.writeByte(firmware);
+ content.writeByte(timezone);
+ content.writeByte(interval);
+ if (length >= 7) {
+ content.writeByte(signal);
+ }
+ sendResponse(channel, content);
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}