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author | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
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committer | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
commit | 59416923dcb3a756eaf532cc4259f2f6625c0762 (patch) | |
tree | 9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java | |
parent | 79a129dd6327d932133d6b9a50190d3f4927bff9 (diff) | |
download | trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2 trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip |
Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java new file mode 100644 index 000000000..da0c6928b --- /dev/null +++ b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java @@ -0,0 +1,144 @@ +/* + * Copyright 2013 - 2018 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.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.helper.DateBuilder; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.regex.Pattern; + +public class Tk102ProtocolDecoder extends BaseProtocolDecoder { + + public Tk102ProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN_REQUEST = 0x80; + public static final int MSG_LOGIN_REQUEST_2 = 0x21; + public static final int MSG_LOGIN_RESPONSE = 0x00; + public static final int MSG_HEARTBEAT_REQUEST = 0xF0; + public static final int MSG_HEARTBEAT_RESPONSE = 0xFF; + public static final int MSG_REPORT_ONCE = 0x90; + public static final int MSG_REPORT_INTERVAL = 0x93; + + public static final int MODE_GPRS = 0x30; + public static final int MODE_GPRS_SMS = 0x33; + + private static final Pattern PATTERN = new PatternBuilder() + .text("(") + .expression("[A-Z]+") + .number("(dd)(dd)(dd)") // time (hhmmss) + .expression("([AV])") // validity + .number("(dd)(dd.dddd)([NS])") // latitude + .number("(ddd)(dd.dddd)([EW])") // longitude + .number("(ddd.ddd)") // speed + .number("(dd)(dd)(dd)") // date (ddmmyy) + .any() + .text(")") + .compile(); + + private void sendResponse(Channel channel, int type, ByteBuf dataSequence, ByteBuf content) { + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeByte('['); + response.writeByte(type); + response.writeBytes(dataSequence); + response.writeByte(content.readableBytes()); + response.writeBytes(content); + content.release(); + response.writeByte(']'); + 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(1); // header + int type = buf.readUnsignedByte(); + ByteBuf dataSequence = buf.readSlice(10); + int length = buf.readUnsignedByte(); + + if (type == MSG_LOGIN_REQUEST || type == MSG_LOGIN_REQUEST_2) { + + ByteBuf data = buf.readSlice(length); + + String id; + if (type == MSG_LOGIN_REQUEST) { + id = data.toString(StandardCharsets.US_ASCII); + } else { + id = data.copy(1, 15).toString(StandardCharsets.US_ASCII); + } + + if (getDeviceSession(channel, remoteAddress, id) != null) { + ByteBuf response = Unpooled.buffer(); + response.writeByte(MODE_GPRS); + response.writeBytes(data); + sendResponse(channel, MSG_LOGIN_RESPONSE, dataSequence, response); + } + + } else if (type == MSG_HEARTBEAT_REQUEST) { + + sendResponse(channel, MSG_HEARTBEAT_RESPONSE, dataSequence, buf.readRetainedSlice(length)); + + } else { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + + Parser parser = new Parser(PATTERN, buf.readSlice(length).toString(StandardCharsets.US_ASCII)); + if (!parser.matches()) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + DateBuilder dateBuilder = new DateBuilder() + .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0)); + + position.setValid(parser.next().equals("A")); + position.setLatitude(parser.nextCoordinate()); + position.setLongitude(parser.nextCoordinate()); + position.setSpeed(parser.nextDouble(0)); + + dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0)); + position.setTime(dateBuilder.getDate()); + + return position; + + } + + return null; + } + +} |