/* * Copyright 2015 - 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; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import io.netty.channel.ChannelHandler; import org.traccar.config.Config; import org.traccar.config.Keys; import org.traccar.database.IdentityManager; import org.traccar.helper.Checksum; import org.traccar.model.Device; import org.traccar.model.Position; import org.traccar.model.Group; import javax.inject.Inject; import javax.ws.rs.client.Client; import javax.ws.rs.client.Entity; import javax.ws.rs.client.Invocation; import java.util.HashMap; import java.util.Map; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.nio.charset.StandardCharsets; import java.util.Calendar; import java.util.Formatter; import java.util.Locale; import java.util.TimeZone; @ChannelHandler.Sharable public class WebDataHandler extends BaseDataHandler { private static final String KEY_POSITION = "position"; private static final String KEY_DEVICE = "device"; private final IdentityManager identityManager; private final ObjectMapper objectMapper; private final Client client; private final String url; private final String header; private final boolean json; @Inject public WebDataHandler( Config config, IdentityManager identityManager, ObjectMapper objectMapper, Client client) { this.identityManager = identityManager; this.objectMapper = objectMapper; this.client = client; this.url = config.getString(Keys.FORWARD_URL); this.header = config.getString(Keys.FORWARD_HEADER); this.json = config.getBoolean(Keys.FORWARD_JSON); } private static String formatSentence(Position position) { StringBuilder s = new StringBuilder("$GPRMC,"); try (Formatter f = new Formatter(s, Locale.ENGLISH)) { Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.ENGLISH); calendar.setTimeInMillis(position.getFixTime().getTime()); f.format("%1$tH%1$tM%1$tS.%1$tL,A,", calendar); double lat = position.getLatitude(); double lon = position.getLongitude(); f.format("%02d%07.4f,%c,", (int) Math.abs(lat), Math.abs(lat) % 1 * 60, lat < 0 ? 'S' : 'N'); f.format("%03d%07.4f,%c,", (int) Math.abs(lon), Math.abs(lon) % 1 * 60, lon < 0 ? 'W' : 'E'); f.format("%.2f,%.2f,", position.getSpeed(), position.getCourse()); f.format("%1$td%1$tm%1$ty,,", calendar); } s.append(Checksum.nmea(s.toString())); return s.toString(); } private String calculateStatus(Position position) { if (position.getAttributes().containsKey(Position.KEY_ALARM)) { return "0xF841"; // STATUS_PANIC_ON } else if (position.getSpeed() < 1.0) { return "0xF020"; // STATUS_LOCATION } else { return "0xF11C"; // STATUS_MOTION_MOVING } } public String formatRequest(Position position) throws UnsupportedEncodingException, JsonProcessingException { Device device = identityManager.getById(position.getDeviceId()); String request = url .replace("{name}", URLEncoder.encode(device.getName(), StandardCharsets.UTF_8.name())) .replace("{uniqueId}", device.getUniqueId()) .replace("{status}", device.getStatus()) .replace("{deviceId}", String.valueOf(position.getDeviceId())) .replace("{protocol}", String.valueOf(position.getProtocol())) .replace("{deviceTime}", String.valueOf(position.getDeviceTime().getTime())) .replace("{fixTime}", String.valueOf(position.getFixTime().getTime())) .replace("{valid}", String.valueOf(position.getValid())) .replace("{latitude}", String.valueOf(position.getLatitude())) .replace("{longitude}", String.valueOf(position.getLongitude())) .replace("{altitude}", String.valueOf(position.getAltitude())) .replace("{speed}", String.valueOf(position.getSpeed())) .replace("{course}", String.valueOf(position.getCourse())) .replace("{accuracy}", String.valueOf(position.getAccuracy())) .replace("{statusCode}", calculateStatus(position)); if (position.getAddress() != null) { request = request.replace( "{address}", URLEncoder.encode(position.getAddress(), StandardCharsets.UTF_8.name())); } if (request.contains("{attributes}")) { String attributes = objectMapper.writeValueAsString(position.getAttributes()); request = request.replace( "{attributes}", URLEncoder.encode(attributes, StandardCharsets.UTF_8.name())); } if (request.contains("{gprmc}")) { request = request.replace("{gprmc}", formatSentence(position)); } if (request.contains("{group}")) { String deviceGroupName = ""; if (device.getGroupId() != 0) { Group group = Context.getGroupsManager().getById(device.getGroupId()); if (group != null) { deviceGroupName = group.getName(); } } request = request.replace("{group}", URLEncoder.encode(deviceGroupName, StandardCharsets.UTF_8.name())); } return request; } @Override protected Position handlePosition(Position position) { String url; if (json) { url = this.url; } else { try { url = formatRequest(position); } catch (UnsupportedEncodingException | JsonProcessingException e) { throw new RuntimeException("Forwarding formatting error", e); } } Invocation.Builder requestBuilder = client.target(url).request(); if (header != null && !header.isEmpty()) { for (String line: header.split("\\r?\\n")) { String[] values = line.split(":", 2); requestBuilder.header(values[0].trim(), values[1].trim()); } } if (json) { requestBuilder.async().post(Entity.json(prepareJsonPayload(position))); } else { requestBuilder.async().get(); } return position; } private Map<String, Object> prepareJsonPayload(Position position) { Map<String, Object> data = new HashMap<>(); Device device = identityManager.getById(position.getDeviceId()); data.put(KEY_POSITION, position); if (device != null) { data.put(KEY_DEVICE, device); } return data; } }