1 files changed, 215 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
new file mode 100644
index 000000000..aa05ca2d7
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
@@ -0,0 +1,215 @@
+/*
+ * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 Vitaly Litvak (vitavaque@gmail.com)
+ *
+ * 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.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+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.LinkedList;
+import java.util.List;
+
+public class AutoFonProtocolDecoder extends BaseProtocolDecoder {
+
+    public AutoFonProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_LOGIN = 0x10;
+    public static final int MSG_LOCATION = 0x11;
+    public static final int MSG_HISTORY = 0x12;
+
+    public static final int MSG_45_LOGIN = 0x41;
+    public static final int MSG_45_LOCATION = 0x02;
+
+    private static double convertCoordinate(int raw) {
+        int degrees = raw / 1000000;
+        double minutes = (raw % 1000000) / 10000.0;
+        return degrees + minutes / 60;
+    }
+
+    private static double convertCoordinate(short degrees, int minutes) {
+        double value = degrees + BitUtil.from(minutes, 4) / 600000.0;
+        if (BitUtil.check(minutes, 0)) {
+            return value;
+        } else {
+            return -value;
+        }
+    }
+
+    private Position decodePosition(DeviceSession deviceSession, ByteBuf buf, boolean history) {
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        if (!history) {
+            buf.readUnsignedByte(); // interval
+            buf.skipBytes(8); // settings
+        }
+        position.set(Position.KEY_STATUS, buf.readUnsignedByte());
+        if (!history) {
+            buf.readUnsignedShort();
+        }
+        position.set(Position.KEY_BATTERY, buf.readUnsignedByte());
+        buf.skipBytes(6); // time
+
+        if (!history) {
+            for (int i = 0; i < 2; i++) {
+                buf.skipBytes(5); // time
+                buf.readUnsignedShort(); // interval
+                buf.skipBytes(5); // mode
+            }
+        }
+
+        position.set(Position.PREFIX_TEMP + 1, buf.readByte());
+
+        int rssi = buf.readUnsignedByte();
+        CellTower cellTower = CellTower.from(
+                buf.readUnsignedShort(), buf.readUnsignedShort(),
+                buf.readUnsignedShort(), buf.readUnsignedShort(), rssi);
+        position.setNetwork(new Network(cellTower));
+
+        int valid = buf.readUnsignedByte();
+        position.setValid((valid & 0xc0) != 0);
+        position.set(Position.KEY_SATELLITES, valid & 0x3f);
+
+        DateBuilder dateBuilder = new DateBuilder()
+                .setDateReverse(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+                .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+        position.setTime(dateBuilder.getDate());
+
+        position.setLatitude(convertCoordinate(buf.readInt()));
+        position.setLongitude(convertCoordinate(buf.readInt()));
+        position.setAltitude(buf.readShort());
+        position.setSpeed(buf.readUnsignedByte());
+        position.setCourse(buf.readUnsignedByte() * 2.0);
+
+        position.set(Position.KEY_HDOP, buf.readUnsignedShort());
+
+        buf.readUnsignedShort(); // reserved
+        buf.readUnsignedByte(); // checksum
+        return position;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        int type = buf.readUnsignedByte();
+
+        if (type == MSG_LOGIN || type == MSG_45_LOGIN) {
+
+            if (type == MSG_LOGIN) {
+                buf.readUnsignedByte(); // hardware version
+                buf.readUnsignedByte(); // software version
+            }
+
+            String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1);
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+
+            if (deviceSession != null && channel != null) {
+                ByteBuf response = Unpooled.buffer();
+                response.writeBytes("resp_crc=".getBytes(StandardCharsets.US_ASCII));
+                response.writeByte(buf.getByte(buf.writerIndex() - 1));
+                channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+            }
+
+            return null;
+
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (type == MSG_LOCATION) {
+
+            return decodePosition(deviceSession, buf, false);
+
+        } else if (type == MSG_HISTORY) {
+
+            int count = buf.readUnsignedByte() & 0x0f;
+            buf.readUnsignedShort(); // total count
+            List<Position> positions = new LinkedList<>();
+
+            for (int i = 0; i < count; i++) {
+                positions.add(decodePosition(deviceSession, buf, true));
+            }
+
+            return positions;
+
+        } else if (type == MSG_45_LOCATION) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            short status = buf.readUnsignedByte();
+            if (BitUtil.check(status, 7)) {
+                position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+            }
+            position.set(Position.KEY_BATTERY, BitUtil.to(status, 7));
+
+            buf.skipBytes(2); // remaining time
+
+            position.set(Position.PREFIX_TEMP + 1, buf.readByte());
+
+            buf.skipBytes(2); // timer (interval and units)
+            buf.readByte(); // mode
+            buf.readByte(); // gprs sending interval
+
+            buf.skipBytes(6); // mcc, mnc, lac, cid
+
+            int valid = buf.readUnsignedByte();
+            position.setValid(BitUtil.from(valid, 6) != 0);
+            position.set(Position.KEY_SATELLITES, BitUtil.from(valid, 6));
+
+            int time = buf.readUnsignedMedium();
+            int date = buf.readUnsignedMedium();
+
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setTime(time / 10000, time / 100 % 100, time % 100)
+                    .setDateReverse(date / 10000, date / 100 % 100, date % 100);
+            position.setTime(dateBuilder.getDate());
+
+            position.setLatitude(convertCoordinate(buf.readUnsignedByte(), buf.readUnsignedMedium()));
+            position.setLongitude(convertCoordinate(buf.readUnsignedByte(), buf.readUnsignedMedium()));
+            position.setSpeed(buf.readUnsignedByte());
+            position.setCourse(buf.readUnsignedShort());
+
+            return position;
+
+        }
+
+        return null;
+    }
+
+}