Merge pull request #4941 from anton2920/piligrim-dev

Support for Piligrim M-5000/M-10000

2 files changed, 209 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/helper/NMEA.java b/src/main/java/org/traccar/helper/NMEA.java
new file mode 100644
index 000000000..cae47a8f6
--- /dev/null
+++ b/src/main/java/org/traccar/helper/NMEA.java
@@ -0,0 +1,126 @@
+package org.traccar.helper;
+
+import java.util.HashMap;
+import java.util.Map;
+
+
+public class NMEA {
+
+    // fucking java interfaces
+    interface SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position);
+    }
+
+    // utils
+    static float Latitude2Decimal(String lat, String NS) {
+        float med = Float.parseFloat(lat.substring(2)) / 60.0f;
+        med += Float.parseFloat(lat.substring(0, 2));
+        if (NS.startsWith("S")) {
+            med = -med;
+        }
+        return med;
+    }
+
+    static float Longitude2Decimal(String lon, String WE) {
+        float med = Float.parseFloat(lon.substring(3)) / 60.0f;
+        med += Float.parseFloat(lon.substring(0, 3));
+        if (WE.startsWith("W")) {
+            med = -med;
+        }
+        return med;
+    }
+
+    // parsers
+    class GPGGA implements SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position) {
+            position.time = Float.parseFloat(tokens[1]);
+            position.lat = Latitude2Decimal(tokens[2], tokens[3]);
+            position.lon = Longitude2Decimal(tokens[4], tokens[5]);
+            position.quality = Integer.parseInt(tokens[6]);
+            position.altitude = Float.parseFloat(tokens[9]);
+            return true;
+        }
+    }
+
+    class GPGGL implements SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position) {
+            position.lat = Latitude2Decimal(tokens[1], tokens[2]);
+            position.lon = Longitude2Decimal(tokens[3], tokens[4]);
+            position.time = Float.parseFloat(tokens[5]);
+            return true;
+        }
+    }
+
+    class GPRMC implements SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position) {
+            position.time = Float.parseFloat(tokens[1]);
+            position.lat = Latitude2Decimal(tokens[3], tokens[4]);
+            position.lon = Longitude2Decimal(tokens[5], tokens[6]);
+            position.velocity = Float.parseFloat(tokens[7]);
+            position.dir = Float.parseFloat(tokens[8]);
+            return true;
+        }
+    }
+
+    class GPVTG implements SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position) {
+            position.dir = Float.parseFloat(tokens[3]);
+            return true;
+        }
+    }
+
+    class GPRMZ implements SentenceParser {
+        public boolean parse(String[] tokens, GPSPosition position) {
+            position.altitude = Float.parseFloat(tokens[1]);
+            return true;
+        }
+    }
+
+    public class GPSPosition {
+        public float time = 0.0f;
+        public float lat = 0.0f;
+        public float lon = 0.0f;
+        public boolean fixed = false;
+        public int quality = 0;
+        public float dir = 0.0f;
+        public float altitude = 0.0f;
+        public float velocity = 0.0f;
+
+        public void updatefix() {
+            fixed = quality > 0;
+        }
+
+        public String toString() {
+            return String.format("POSITION: lat: %f, lon: %f, time: %f, Q: %d, dir: %f, alt: %f, vel: %f", lat, lon, time, quality, dir, altitude, velocity);
+        }
+    }
+
+    GPSPosition position = new GPSPosition();
+
+    private static final Map<String, SentenceParser> sentenceParsers = new HashMap<String, SentenceParser>();
+
+    public NMEA() {
+        sentenceParsers.put("GPGGA", new GPGGA());
+        sentenceParsers.put("GPGGL", new GPGGL());
+        sentenceParsers.put("GPRMC", new GPRMC());
+        sentenceParsers.put("GPRMZ", new GPRMZ());
+        //only really good GPS devices have this sentence but ...
+        sentenceParsers.put("GPVTG", new GPVTG());
+    }
+
+    public GPSPosition parse(String line) {
+
+        if (line.startsWith("$")) {
+            String nmea = line.substring(1);
+            String[] tokens = nmea.split(",");
+            String type = tokens[0];
+            //TODO check crc
+            if (sentenceParsers.containsKey(type)) {
+                sentenceParsers.get(type).parse(tokens, position);
+            }
+            position.updatefix();
+        }
+
+        return position;
+    }
+}
diff --git a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
index 244df6806..6ca9b0795 100644
--- a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
@@ -21,20 +21,27 @@ 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.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.traccar.BaseHttpProtocolDecoder;
+import org.traccar.WebDataHandler;
 import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
+import org.traccar.helper.NMEA;
 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 PiligrimProtocolDecoder extends BaseHttpProtocolDecoder {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(WebDataHandler.class);
+
     public PiligrimProtocolDecoder(Protocol protocol) {
         super(protocol);
     }
@@ -150,6 +157,82 @@ public class PiligrimProtocolDecoder extends BaseHttpProtocolDecoder {
             }
 
             return positions;
+        } else if (uri.startsWith("/push.do")) {
+            sendResponse(channel, "PUSH.DO: OK");
+
+            /* Getting payload */
+            ByteBuf contentStream = request.content();
+            byte[] payloadBytes = new byte[Integer.parseInt(request.headers().get("Content-Length"))];
+            contentStream.readBytes(payloadBytes);
+            String payload = new String(payloadBytes);
+
+            /* Payload structure:
+             * &phone&message
+             */
+            String[] payloadParts = payload.split("&");
+            /* LOGGER.debug("Payload parts: " + Arrays.toString(payloadParts)); */
+            String phoneNumber = payloadParts[1].substring(15);
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, phoneNumber.substring(1));
+            if (deviceSession == null) {
+                return null;
+            }
+
+            /* TODO: use keys for flags in 'positions'. */
+            String message = payloadParts[2].substring(8).replaceFirst("[a-zA-Z! ]*; ", "");
+            /* LOGGER.debug("Phone number: " + phoneNumber); */
+            /* LOGGER.debug("Message: " + message); */
+
+            if (message.startsWith("$GPRMC")) {
+                /* Supported message structure:
+                 * GPS NMEA Command; GSM info; Unknown; Battery voltage?
+                 * Example: $GPRMC,180752.000,A,5314.0857,N,03421.8173,E,0.00,104.74,220722,,,A,V* 29,05; GSM: 250-01 0b54-0519,1c30,3e96,3ebe,412e 25;  S; Batt: 405,M
+                 */
+                LOGGER.debug("Supported message");
+
+                String[] messageParts = message.split(";");
+                /* LOGGER.debug("Message parts: " + Arrays.toString(messageParts)); */
+
+                /* Parsing GPS */
+                String unprocessedGpsCommand = messageParts[0];
+
+                /* Getting rid of checksum */
+                String gpsCommand = unprocessedGpsCommand.replaceFirst("A,V[*].*", "");
+                /* LOGGER.debug("GPS command: " + gpsCommand); */
+
+                NMEA gpsParser = new NMEA();
+
+                NMEA.GPSPosition gpsPosition = gpsParser.parse(gpsCommand);
+
+                /* LOGGER.debug("Time: " + gpsPosition.time); */
+                /* LOGGER.debug("Coordinates: " + gpsPosition.lat + " " + gpsPosition.lon); */
+                /* LOGGER.debug("Speed over ground: " + gpsPosition.velocity + " knots"); */
+
+                /* Parsing other fields */
+                /* String gsmInfo = messageParts[1]; */
+                /* String unknown = messageParts[2]; */
+                String batteryInfo = messageParts[messageParts.length - 1].substring(7).substring(0, 3);
+                /* LOGGER.debug("Battery: " + batteryInfo); */
+
+                /* Constructing response */
+                Position position = new Position(getProtocolName());
+
+                position.setDeviceId(deviceSession.getDeviceId());
+                position.setValid(true);
+                position.setLatitude(gpsPosition.lat);
+                position.setLongitude(gpsPosition.lon);
+                position.setTime(new Date(System.currentTimeMillis()));
+                position.setSpeed(gpsPosition.velocity);
+                position.setCourse(gpsPosition.dir);
+                position.setAccuracy(gpsPosition.quality);
+                position.setAltitude(gpsPosition.altitude);
+                position.set(Position.KEY_BATTERY, Integer.parseInt(batteryInfo) / 100);
+
+                LOGGER.debug("Supported message finish");
+
+                return position;
+            } else {
+                LOGGER.error("Unsupported message");
+            }
         }
 
         return null;