diff options
Diffstat (limited to 'src/org/traccar/protocol/Gl200BinaryProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/Gl200BinaryProtocolDecoder.java | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/Gl200BinaryProtocolDecoder.java b/src/org/traccar/protocol/Gl200BinaryProtocolDecoder.java new file mode 100644 index 000000000..071960e49 --- /dev/null +++ b/src/org/traccar/protocol/Gl200BinaryProtocolDecoder.java @@ -0,0 +1,406 @@ +/* + * Copyright 2017 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 org.jboss.netty.buffer.ChannelBuffer; +import org.jboss.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.helper.BitBuffer; +import org.traccar.helper.BitUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.CellTower; +import org.traccar.model.Network; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.Date; +import java.util.LinkedList; +import java.util.List; + +public class Gl200BinaryProtocolDecoder extends BaseProtocolDecoder { + + public Gl200BinaryProtocolDecoder(Gl200Protocol protocol) { + super(protocol); + } + + private Date decodeTime(ChannelBuffer buf) { + DateBuilder dateBuilder = new DateBuilder() + .setDate(buf.readUnsignedShort(), buf.readUnsignedByte(), buf.readUnsignedByte()) + .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()); + return dateBuilder.getDate(); + } + + public static final int MSG_RSP_LCB = 3; + public static final int MSG_RSP_GEO = 8; + public static final int MSG_RSP_COMPRESSED = 100; + + private List<Position> decodeLocation(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) { + + List<Position> positions = new LinkedList<>(); + + int type = buf.readUnsignedByte(); + + buf.readUnsignedInt(); // mask + buf.readUnsignedShort(); // length + buf.readUnsignedByte(); // device type + buf.readUnsignedShort(); // protocol version + buf.readUnsignedShort(); // firmware version + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.format("%015d", buf.readLong())); + if (deviceSession == null) { + return null; + } + + int battery = buf.readUnsignedByte(); + int power = buf.readUnsignedShort(); + + if (type == MSG_RSP_GEO) { + buf.readUnsignedByte(); // reserved + buf.readUnsignedByte(); // reserved + } + + buf.readUnsignedByte(); // motion status + int satellites = buf.readUnsignedByte(); + + if (type != MSG_RSP_COMPRESSED) { + buf.readUnsignedByte(); // index + } + + if (type == MSG_RSP_LCB) { + buf.readUnsignedByte(); // phone length + for (int b = buf.readUnsignedByte();; b = buf.readUnsignedByte()) { + if ((b & 0xf) == 0xf || (b & 0xf0) == 0xf0) { + break; + } + } + } + + if (type == MSG_RSP_COMPRESSED) { + + int count = buf.readUnsignedShort(); + + BitBuffer bits; + int speed = 0; + int heading = 0; + int latitude = 0; + int longitude = 0; + long time = 0; + + for (int i = 0; i < count; i++) { + + if (time > 0) { + time += 1; + } + + Position position = new Position(); + position.setProtocol(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + switch (BitUtil.from(buf.getUnsignedByte(buf.readerIndex()), 8 - 2)) { + case 1: + bits = new BitBuffer(buf.readBytes(3)); + bits.readUnsigned(2); // point attribute + bits.readUnsigned(1); // fix type + speed = bits.readUnsigned(12); + heading = bits.readUnsigned(9); + longitude = buf.readInt(); + latitude = buf.readInt(); + if (time == 0) { + time = buf.readUnsignedInt(); + } + break; + case 2: + bits = new BitBuffer(buf.readBytes(5)); + bits.readUnsigned(2); // point attribute + bits.readUnsigned(1); // fix type + speed += bits.readSigned(7); + heading += bits.readSigned(7); + longitude += bits.readSigned(12); + latitude += bits.readSigned(11); + break; + default: + buf.readUnsignedByte(); // invalid or same + continue; + } + + position.setValid(true); + position.setTime(new Date(time * 1000)); + position.setSpeed(UnitsConverter.knotsFromKph(speed * 0.1)); + position.setCourse(heading); + position.setLongitude(longitude * 0.000001); + position.setLatitude(latitude * 0.000001); + + positions.add(position); + + } + + } else { + + int count = buf.readUnsignedByte(); + + for (int i = 0; i < count; i++) { + + Position position = new Position(); + position.setProtocol(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_BATTERY_LEVEL, battery); + position.set(Position.KEY_POWER, power); + position.set(Position.KEY_SATELLITES, satellites); + + int hdop = buf.readUnsignedByte(); + position.setValid(hdop > 0); + position.set(Position.KEY_HDOP, hdop); + + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedMedium() * 0.1)); + position.setCourse(buf.readUnsignedShort()); + position.setAltitude(buf.readShort()); + position.setLongitude(buf.readInt() * 0.000001); + position.setLatitude(buf.readInt() * 0.000001); + + position.setTime(decodeTime(buf)); + + position.setNetwork(new Network(CellTower.from( + buf.readUnsignedShort(), buf.readUnsignedShort(), + buf.readUnsignedShort(), buf.readUnsignedShort()))); + + buf.readUnsignedByte(); // reserved + + positions.add(position); + + } + + } + + return positions; + } + + public static final int MSG_EVT_BPL = 6; + public static final int MSG_EVT_VGN = 45; + public static final int MSG_EVT_VGF = 46; + public static final int MSG_EVT_UPD = 15; + public static final int MSG_EVT_IDF = 17; + public static final int MSG_EVT_GSS = 21; + public static final int MSG_EVT_GES = 26; + public static final int MSG_EVT_GPJ = 31; + public static final int MSG_EVT_RMD = 35; + public static final int MSG_EVT_JDS = 33; + public static final int MSG_EVT_CRA = 23; + public static final int MSG_EVT_UPC = 34; + + private Position decodeEvent(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) { + + Position position = new Position(); + position.setProtocol(getProtocolName()); + + int type = buf.readUnsignedByte(); + + buf.readUnsignedInt(); // mask + buf.readUnsignedShort(); // length + buf.readUnsignedByte(); // device type + buf.readUnsignedShort(); // protocol version + + position.set(Position.KEY_VERSION_FW, String.valueOf(buf.readUnsignedShort())); + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.format("%015d", buf.readLong())); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte()); + position.set(Position.KEY_POWER, buf.readUnsignedShort()); + + buf.readUnsignedByte(); // motion status + + position.set(Position.KEY_SATELLITES, buf.readUnsignedByte()); + + switch (type) { + case MSG_EVT_BPL: + buf.readUnsignedShort(); // backup battery voltage + break; + case MSG_EVT_VGN: + case MSG_EVT_VGF: + buf.readUnsignedShort(); // reserved + buf.readUnsignedByte(); // report type + buf.readUnsignedInt(); // ignition duration + break; + case MSG_EVT_UPD: + buf.readUnsignedShort(); // code + buf.readUnsignedByte(); // retry + break; + case MSG_EVT_IDF: + buf.readUnsignedInt(); // idling duration + break; + case MSG_EVT_GSS: + buf.readUnsignedByte(); // gps signal status + buf.readUnsignedInt(); // reserved + break; + case MSG_EVT_GES: + buf.readUnsignedShort(); // trigger geo id + buf.readUnsignedByte(); // trigger geo enable + buf.readUnsignedByte(); // trigger mode + buf.readUnsignedInt(); // radius + buf.readUnsignedInt(); // check interval + break; + case MSG_EVT_GPJ: + buf.readUnsignedByte(); // cw jamming value + buf.readUnsignedByte(); // gps jamming state + break; + case MSG_EVT_RMD: + buf.readUnsignedByte(); // roaming state + break; + case MSG_EVT_JDS: + buf.readUnsignedByte(); // jamming state + break; + case MSG_EVT_CRA: + buf.readUnsignedByte(); // crash counter + break; + case MSG_EVT_UPC: + buf.readUnsignedByte(); // command id + buf.readUnsignedShort(); // result + break; + default: + break; + } + + buf.readUnsignedByte(); // count + + int hdop = buf.readUnsignedByte(); + position.setValid(hdop > 0); + position.set(Position.KEY_HDOP, hdop); + + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedMedium() * 0.1)); + position.setCourse(buf.readUnsignedShort()); + position.setAltitude(buf.readShort()); + position.setLongitude(buf.readInt() * 0.000001); + position.setLatitude(buf.readInt() * 0.000001); + + position.setTime(decodeTime(buf)); + + position.setNetwork(new Network(CellTower.from( + buf.readUnsignedShort(), buf.readUnsignedShort(), + buf.readUnsignedShort(), buf.readUnsignedShort()))); + + buf.readUnsignedByte(); // reserved + + return position; + } + + public static final int MSG_INF_GPS = 2; + public static final int MSG_INF_CID = 4; + public static final int MSG_INF_CSQ = 5; + public static final int MSG_INF_VER = 6; + public static final int MSG_INF_BAT = 7; + public static final int MSG_INF_TMZ = 9; + public static final int MSG_INF_GIR = 10; + + private Position decodeInformation(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) { + + Position position = new Position(); + position.setProtocol(getProtocolName()); + + int type = buf.readUnsignedByte(); + + buf.readUnsignedInt(); // mask + buf.readUnsignedShort(); // length + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.format("%015d", buf.readLong())); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + + buf.readUnsignedByte(); // device type + buf.readUnsignedShort(); // protocol version + + position.set(Position.KEY_VERSION_FW, String.valueOf(buf.readUnsignedShort())); + + if (type == MSG_INF_VER) { + buf.readUnsignedShort(); // hardware version + buf.readUnsignedShort(); // mcu version + buf.readUnsignedShort(); // reserved + } + + buf.readUnsignedByte(); // motion status + buf.readUnsignedByte(); // reserved + + position.set(Position.KEY_SATELLITES, buf.readUnsignedByte()); + + buf.readUnsignedByte(); // mode + buf.skipBytes(7); // last fix time + buf.readUnsignedByte(); // reserved + buf.readUnsignedByte(); + buf.readUnsignedShort(); // response report mask + buf.readUnsignedShort(); // ign interval + buf.readUnsignedShort(); // igf interval + buf.readUnsignedInt(); // reserved + buf.readUnsignedByte(); // reserved + + if (type == MSG_INF_BAT) { + position.set(Position.KEY_CHARGE, buf.readUnsignedByte() != 0); + position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001); + position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); + position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte()); + } + + buf.skipBytes(10); // iccid + + if (type == MSG_INF_CSQ) { + position.set(Position.KEY_RSSI, buf.readUnsignedByte()); + buf.readUnsignedByte(); + } + + buf.readUnsignedByte(); // time zone flags + buf.readUnsignedShort(); // time zone offset + + if (type == MSG_INF_GIR) { + buf.readUnsignedByte(); // gir trigger + buf.readUnsignedByte(); // cell number + position.setNetwork(new Network(CellTower.from( + buf.readUnsignedShort(), buf.readUnsignedShort(), + buf.readUnsignedShort(), buf.readUnsignedShort()))); + buf.readUnsignedByte(); // ta + buf.readUnsignedByte(); // rx level + } + + getLastLocation(position, decodeTime(buf)); + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ChannelBuffer buf = (ChannelBuffer) msg; + + switch (buf.readBytes(4).toString(StandardCharsets.US_ASCII)) { + case "+RSP": + return decodeLocation(channel, remoteAddress, buf); + case "+INF": + return decodeInformation(channel, remoteAddress, buf); + case "+EVT": + return decodeEvent(channel, remoteAddress, buf); + default: + return null; + } + } + +} |