1 files changed, 161 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
new file mode 100644
index 000000000..9da52e97a
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2016 - 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.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.DateBuilder;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.model.WifiAccessPoint;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+
+public class SmokeyProtocolDecoder extends BaseProtocolDecoder {
+
+    public SmokeyProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_DATE_RECORD = 0;
+    public static final int MSG_DATE_RECORD_ACK = 1;
+
+    private static void sendResponse(
+            Channel channel, SocketAddress remoteAddress, ByteBuf id, int index, int report) {
+
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeBytes("SM".getBytes(StandardCharsets.US_ASCII));
+            response.writeByte(3); // protocol version
+            response.writeByte(MSG_DATE_RECORD_ACK);
+            response.writeBytes(id);
+            response.writeInt(
+                    (int) ChronoUnit.SECONDS.between(Instant.parse("2000-01-01T00:00:00.00Z"), Instant.now()));
+            response.writeByte(index);
+            response.writeByte(report - 0x200);
+
+            short checksum = (short) 0xF5A0;
+            for (int i = 0; i < response.readableBytes(); i += 2) {
+                checksum ^= response.getShortLE(i);
+            }
+            response.writeShort(checksum);
+
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.skipBytes(2); // header
+        buf.readUnsignedByte(); // protocol version
+
+        int type = buf.readUnsignedByte();
+
+        ByteBuf id = buf.readSlice(8);
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(id));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (type == MSG_DATE_RECORD) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            position.set(Position.KEY_VERSION_FW, buf.readUnsignedShort());
+
+            int status = buf.readUnsignedShort();
+            position.set(Position.KEY_STATUS, status);
+
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setDate(2000, 1, 1).addSeconds(buf.readUnsignedInt());
+
+            getLastLocation(position, dateBuilder.getDate());
+
+            int index = buf.readUnsignedByte();
+            position.set(Position.KEY_INDEX, index);
+
+            int report = buf.readUnsignedShort();
+
+            buf.readUnsignedShort(); // length
+
+            position.set(Position.KEY_BATTERY, buf.readUnsignedShort());
+
+            Network network = new Network();
+
+            if (report != 0x0203) {
+
+                int count = 1;
+                if (report != 0x0200) {
+                    count = buf.readUnsignedByte();
+                }
+
+                for (int i = 0; i < count; i++) {
+                    int mcc = buf.readUnsignedShort();
+                    int mnc = buf.readUnsignedShort();
+                    int lac = buf.readUnsignedShort();
+                    int cid = buf.readUnsignedShort();
+                    if (i == 0) {
+                        buf.readByte(); // timing advance
+                    }
+                    int rssi = buf.readByte();
+                    network.addCellTower(CellTower.from(mcc, mnc, lac, cid, rssi));
+                }
+
+            }
+
+            if (report == 0x0202 || report == 0x0203) {
+
+                int count = buf.readUnsignedByte();
+
+                for (int i = 0; i < count; i++) {
+                    buf.readerIndex(buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0) + 1); // ssid
+
+                    String mac = String.format("%02x:%02x:%02x:%02x:%02x:%02x",
+                            buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte(),
+                            buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+
+                    network.addWifiAccessPoint(WifiAccessPoint.from(mac, buf.readByte()));
+                }
+
+            }
+
+            position.setNetwork(network);
+
+            sendResponse(channel, remoteAddress, id, index, report);
+
+            return position;
+
+        }
+
+        return null;
+    }
+
+}