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/*
* Copyright 2013 - 2022 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.Unpooled;
import io.netty.channel.Channel;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.HttpResponseStatus;
import io.netty.handler.codec.http.QueryStringDecoder;
import org.traccar.BaseHttpProtocolDecoder;
import org.traccar.session.DeviceSession;
import org.traccar.Protocol;
import org.traccar.helper.DateUtil;
import org.traccar.model.CellTower;
import org.traccar.model.Command;
import org.traccar.model.Network;
import org.traccar.model.Position;
import org.traccar.model.WifiAccessPoint;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
public class OsmAndProtocolDecoder extends BaseHttpProtocolDecoder {
public OsmAndProtocolDecoder(Protocol protocol) {
super(protocol);
}
@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
FullHttpRequest request = (FullHttpRequest) msg;
QueryStringDecoder decoder = new QueryStringDecoder(request.uri());
Map<String, List<String>> params = decoder.parameters();
if (params.isEmpty()) {
decoder = new QueryStringDecoder(request.content().toString(StandardCharsets.US_ASCII), false);
params = decoder.parameters();
}
Position position = new Position(getProtocolName());
position.setValid(true);
Network network = new Network();
Double latitude = null;
Double longitude = null;
for (Map.Entry<String, List<String>> entry : params.entrySet()) {
for (String value : entry.getValue()) {
switch (entry.getKey()) {
case "id":
case "deviceid":
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
if (deviceSession == null) {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
break;
case "valid":
position.setValid(Boolean.parseBoolean(value) || "1".equals(value));
break;
case "timestamp":
try {
long timestamp = Long.parseLong(value);
if (timestamp < Integer.MAX_VALUE) {
timestamp *= 1000;
}
position.setTime(new Date(timestamp));
} catch (NumberFormatException error) {
if (value.contains("T")) {
position.setTime(DateUtil.parseDate(value));
} else {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
position.setTime(dateFormat.parse(value));
}
}
break;
case "lat":
latitude = Double.parseDouble(value);
break;
case "lon":
longitude = Double.parseDouble(value);
break;
case "location":
String[] location = value.split(",");
latitude = Double.parseDouble(location[0]);
longitude = Double.parseDouble(location[1]);
break;
case "cell":
String[] cell = value.split(",");
if (cell.length > 4) {
network.addCellTower(CellTower.from(
Integer.parseInt(cell[0]), Integer.parseInt(cell[1]),
Integer.parseInt(cell[2]), Integer.parseInt(cell[3]), Integer.parseInt(cell[4])));
} else {
network.addCellTower(CellTower.from(
Integer.parseInt(cell[0]), Integer.parseInt(cell[1]),
Integer.parseInt(cell[2]), Integer.parseInt(cell[3])));
}
break;
case "wifi":
String[] wifi = value.split(",");
network.addWifiAccessPoint(WifiAccessPoint.from(
wifi[0].replace('-', ':'), Integer.parseInt(wifi[1])));
break;
case "speed":
position.setSpeed(convertSpeed(Double.parseDouble(value), "kn"));
break;
case "bearing":
case "heading":
position.setCourse(Double.parseDouble(value));
break;
case "altitude":
position.setAltitude(Double.parseDouble(value));
break;
case "accuracy":
position.setAccuracy(Double.parseDouble(value));
break;
case "hdop":
position.set(Position.KEY_HDOP, Double.parseDouble(value));
break;
case "batt":
position.set(Position.KEY_BATTERY_LEVEL, Double.parseDouble(value));
break;
case "driverUniqueId":
position.set(Position.KEY_DRIVER_UNIQUE_ID, value);
break;
default:
try {
position.set(entry.getKey(), Double.parseDouble(value));
} catch (NumberFormatException e) {
switch (value) {
case "true":
position.set(entry.getKey(), true);
break;
case "false":
position.set(entry.getKey(), false);
break;
default:
position.set(entry.getKey(), value);
break;
}
}
break;
}
}
}
if (position.getFixTime() == null) {
position.setTime(new Date());
}
if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
position.setNetwork(network);
}
if (latitude != null && longitude != null) {
position.setLatitude(latitude);
position.setLongitude(longitude);
} else {
getLastLocation(position, position.getDeviceTime());
}
if (position.getDeviceId() != 0) {
String response = null;
for (Command command : getCommandsManager().readQueuedCommands(position.getDeviceId(), 1)) {
response = command.getString(Command.KEY_DATA);
}
if (response != null) {
sendResponse(channel, HttpResponseStatus.OK, Unpooled.copiedBuffer(response, StandardCharsets.UTF_8));
} else {
sendResponse(channel, HttpResponseStatus.OK);
}
return position;
} else {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
}
@Override
protected void sendQueuedCommands(Channel channel, SocketAddress remoteAddress, long deviceId) {
}
}
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