From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 31 Mar 2019 22:35:39 -0700
Subject: Convert project to gradle

---
 .../org/traccar/protocol/Tk102ProtocolDecoder.java | 144 +++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java

(limited to 'src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java')

diff --git a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
new file mode 100644
index 000000000..da0c6928b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2013 - 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.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.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
+
+public class Tk102ProtocolDecoder extends BaseProtocolDecoder {
+
+    public Tk102ProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_LOGIN_REQUEST = 0x80;
+    public static final int MSG_LOGIN_REQUEST_2 = 0x21;
+    public static final int MSG_LOGIN_RESPONSE = 0x00;
+    public static final int MSG_HEARTBEAT_REQUEST = 0xF0;
+    public static final int MSG_HEARTBEAT_RESPONSE = 0xFF;
+    public static final int MSG_REPORT_ONCE = 0x90;
+    public static final int MSG_REPORT_INTERVAL = 0x93;
+
+    public static final int MODE_GPRS = 0x30;
+    public static final int MODE_GPRS_SMS = 0x33;
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("(")
+            .expression("[A-Z]+")
+            .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .expression("([AV])")                // validity
+            .number("(dd)(dd.dddd)([NS])")       // latitude
+            .number("(ddd)(dd.dddd)([EW])")      // longitude
+            .number("(ddd.ddd)")                 // speed
+            .number("(dd)(dd)(dd)")              // date (ddmmyy)
+            .any()
+            .text(")")
+            .compile();
+
+    private void sendResponse(Channel channel, int type, ByteBuf dataSequence, ByteBuf content) {
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeByte('[');
+            response.writeByte(type);
+            response.writeBytes(dataSequence);
+            response.writeByte(content.readableBytes());
+            response.writeBytes(content);
+            content.release();
+            response.writeByte(']');
+            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.skipBytes(1); // header
+        int type = buf.readUnsignedByte();
+        ByteBuf dataSequence = buf.readSlice(10);
+        int length = buf.readUnsignedByte();
+
+        if (type == MSG_LOGIN_REQUEST || type == MSG_LOGIN_REQUEST_2) {
+
+            ByteBuf data = buf.readSlice(length);
+
+            String id;
+            if (type == MSG_LOGIN_REQUEST) {
+                id =  data.toString(StandardCharsets.US_ASCII);
+            } else {
+                id = data.copy(1, 15).toString(StandardCharsets.US_ASCII);
+            }
+
+            if (getDeviceSession(channel, remoteAddress, id) != null) {
+                ByteBuf response = Unpooled.buffer();
+                response.writeByte(MODE_GPRS);
+                response.writeBytes(data);
+                sendResponse(channel, MSG_LOGIN_RESPONSE, dataSequence, response);
+            }
+
+        } else if (type == MSG_HEARTBEAT_REQUEST) {
+
+            sendResponse(channel, MSG_HEARTBEAT_RESPONSE, dataSequence, buf.readRetainedSlice(length));
+
+        } else {
+
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+            if (deviceSession == null) {
+                return null;
+            }
+
+            Parser parser = new Parser(PATTERN, buf.readSlice(length).toString(StandardCharsets.US_ASCII));
+            if (!parser.matches()) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+
+            position.setValid(parser.next().equals("A"));
+            position.setLatitude(parser.nextCoordinate());
+            position.setLongitude(parser.nextCoordinate());
+            position.setSpeed(parser.nextDouble(0));
+
+            dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+            position.setTime(dateBuilder.getDate());
+
+            return position;
+
+        }
+
+        return null;
+    }
+
+}
-- 
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