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/*
* Copyright 2013 - 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.channel.Channel;
import org.jboss.netty.handler.codec.http.DefaultHttpResponse;
import org.jboss.netty.handler.codec.http.HttpHeaders;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponse;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import org.jboss.netty.handler.codec.http.HttpVersion;
import org.jboss.netty.handler.codec.http.QueryStringDecoder;
import org.joda.time.format.ISODateTimeFormat;
import org.traccar.BaseProtocolDecoder;
import org.traccar.Context;
import org.traccar.DeviceSession;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
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 BaseProtocolDecoder {
private String speedUnits;
public OsmAndProtocolDecoder(OsmAndProtocol protocol) {
super(protocol);
speedUnits = Context.getConfig().getString("osmand.speedUnits", "kn");
}
private void sendResponse(Channel channel, HttpResponseStatus status) {
if (channel != null) {
HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
response.headers().add(HttpHeaders.Names.CONTENT_LENGTH, 0);
channel.write(response);
}
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
HttpRequest request = (HttpRequest) msg;
QueryStringDecoder decoder = new QueryStringDecoder(request.getUri());
Map<String, List<String>> params = decoder.getParameters();
if (params.isEmpty()) {
decoder = new QueryStringDecoder(request.getContent().toString(StandardCharsets.US_ASCII), false);
params = decoder.getParameters();
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setValid(true);
for (Map.Entry<String, List<String>> entry : params.entrySet()) {
String value = entry.getValue().get(0);
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));
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(new Date(
ISODateTimeFormat.dateTimeParser().parseMillis(value)));
} else {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
position.setTime(dateFormat.parse(value));
}
}
break;
case "lat":
position.setLatitude(Double.parseDouble(value));
break;
case "lon":
position.setLongitude(Double.parseDouble(value));
break;
case "location":
String[] location = value.split(",");
position.setLatitude(Double.parseDouble(location[0]));
position.setLongitude(Double.parseDouble(location[1]));
break;
case "speed":
switch (speedUnits) {
case "kph":
position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(value)));
break;
case "mps":
position.setSpeed(UnitsConverter.knotsFromMps(Double.parseDouble(value)));
break;
case "mph":
position.setSpeed(UnitsConverter.knotsFromMph(Double.parseDouble(value)));
break;
default:
position.setSpeed(Double.parseDouble(value));
}
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) {
position.set(entry.getKey(), value);
}
break;
}
}
if (position.getFixTime() == null) {
position.setTime(new Date());
}
if (position.getDeviceId() != 0) {
sendResponse(channel, HttpResponseStatus.OK);
return position;
} else {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
}
}
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