1 files changed, 127 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
new file mode 100644
index 000000000..9c4c7e11d
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2015 - 2018 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.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+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.regex.Pattern;
+
+public class CityeasyProtocolDecoder extends BaseProtocolDecoder {
+
+    public CityeasyProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .groupBegin()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("([AV]),")                   // validity
+            .number("(d+),")                     // satellites
+            .number("([NS]),(d+.d+),")           // latitude
+            .number("([EW]),(d+.d+),")           // longitude
+            .number("(d+.d),")                   // speed
+            .number("(d+.d),")                   // hdop
+            .number("(d+.d)")                    // altitude
+            .groupEnd("?").text(";")
+            .number("(d+),")                     // mcc
+            .number("(d+),")                     // mnc
+            .number("(d+),")                     // lac
+            .number("(d+)")                      // cell
+            .any()
+            .compile();
+
+    public static final int MSG_ADDRESS_REQUEST = 0x0001;
+    public static final int MSG_STATUS = 0x0002;
+    public static final int MSG_LOCATION_REPORT = 0x0003;
+    public static final int MSG_LOCATION_REQUEST = 0x0004;
+    public static final int MSG_LOCATION_INTERVAL = 0x0005;
+    public static final int MSG_PHONE_NUMBER = 0x0006;
+    public static final int MSG_MONITORING = 0x0007;
+    public static final int MSG_TIMEZONE = 0x0008;
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.skipBytes(2); // header
+        buf.readUnsignedShort(); // length
+
+        String imei = ByteBufUtil.hexDump(buf.readSlice(7));
+        DeviceSession deviceSession = getDeviceSession(
+                channel, remoteAddress, imei, imei + Checksum.luhn(Long.parseLong(imei)));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        int type = buf.readUnsignedShort();
+
+        if (type == MSG_LOCATION_REPORT || type == MSG_LOCATION_REQUEST) {
+
+            String sentence = buf.toString(buf.readerIndex(), buf.readableBytes() - 8, StandardCharsets.US_ASCII);
+            Parser parser = new Parser(PATTERN, sentence);
+            if (!parser.matches()) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            if (parser.hasNext(15)) {
+
+                position.setTime(parser.nextDateTime());
+
+                position.setValid(parser.next().equals("A"));
+                position.set(Position.KEY_SATELLITES, parser.nextInt());
+
+                position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+                position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+
+                position.setSpeed(parser.nextDouble(0));
+                position.set(Position.KEY_HDOP, parser.nextDouble(0));
+                position.setAltitude(parser.nextDouble(0));
+
+            } else {
+
+                getLastLocation(position, null);
+
+            }
+
+            position.setNetwork(new Network(CellTower.from(
+                    parser.nextInt(0), parser.nextInt(0), parser.nextInt(0), parser.nextInt(0))));
+
+            return position;
+        }
+
+        return null;
+    }
+
+}