Merge branch 'binakot-master'

3 files changed, 301 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/handler/protocol/Arnavi4FrameDecoder.java b/src/main/java/org/traccar/handler/protocol/Arnavi4FrameDecoder.java
new file mode 100644
index 000000000..b13f3fd7d
--- /dev/null
+++ b/src/main/java/org/traccar/handler/protocol/Arnavi4FrameDecoder.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2017 Ivan Muratov (binakot@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 org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+
+public class Arnavi4FrameDecoder extends FrameDecoder {
+
+    private static final int MIN_LENGTH = 4;
+    private static final int HEADER_LENGTH = 10;
+    private static final int PACKET_WRAPPER_LENGTH = 8;
+    private static final int COMMAND_ANSWER_PACKET_LENGTH = 4;
+    private static final int COMMAND_ANSWER_PARCEL_NUMBER = 0xfd;
+    private static final byte PACKAGE_END_SIGN = 0x5d;
+
+    private boolean firstPacket = true;
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
+
+        if (buf.readableBytes() < MIN_LENGTH) {
+            return null;
+        }
+
+        int length;
+        if (firstPacket) {
+            firstPacket = false;
+            length = HEADER_LENGTH;
+        } else {
+            int index = buf.getUnsignedByte(1); // parcel number
+            if (index == COMMAND_ANSWER_PARCEL_NUMBER) {
+                length = COMMAND_ANSWER_PACKET_LENGTH;
+            } else {
+                int pos = 2; // start sign + parcel number
+                while (pos + PACKET_WRAPPER_LENGTH < buf.readableBytes()
+                        && buf.getByte(pos) != PACKAGE_END_SIGN) {
+
+                    int dataLength = buf.getUnsignedShort(pos + 1);
+                    pos += PACKET_WRAPPER_LENGTH + dataLength; // packet type + data length + unixtime + data + crc
+                }
+
+                if (buf.getByte(pos) != PACKAGE_END_SIGN) { // end sign
+                    return null;
+                }
+
+                length = pos + 1;
+            }
+        }
+
+        if (buf.readableBytes() >= length) {
+            return buf.readBytes(length);
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/protocol/Arnavi4Protocol.java b/src/main/java/org/traccar/handler/protocol/Arnavi4Protocol.java
new file mode 100644
index 000000000..381a9b457
--- /dev/null
+++ b/src/main/java/org/traccar/handler/protocol/Arnavi4Protocol.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2017 Ivan Muratov (binakot@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 org.jboss.netty.bootstrap.ServerBootstrap;
+import org.jboss.netty.channel.ChannelPipeline;
+import org.traccar.BaseProtocol;
+import org.traccar.TrackerServer;
+
+import java.nio.ByteOrder;
+import java.util.List;
+
+public class Arnavi4Protocol extends BaseProtocol {
+
+    public Arnavi4Protocol() {
+        super("arnavi4");
+    }
+
+    @Override
+    public void initTrackerServers(List<TrackerServer> serverList) {
+        TrackerServer server = new TrackerServer(new ServerBootstrap(), getName()) {
+            @Override
+            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+                pipeline.addLast("frameDecoder", new Arnavi4FrameDecoder());
+                pipeline.addLast("objectDecoder", new Arnavi4ProtocolDecoder(Arnavi4Protocol.this));
+            }
+        };
+        server.setEndianness(ByteOrder.LITTLE_ENDIAN);
+        serverList.add(server);
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java b/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java
new file mode 100644
index 000000000..06abb563f
--- /dev/null
+++ b/src/main/java/org/traccar/handler/protocol/Arnavi4ProtocolDecoder.java
@@ -0,0 +1,182 @@
+/*
+ * Copyright 2017 Ivan Muratov (binakot@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 org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class Arnavi4ProtocolDecoder extends BaseProtocolDecoder {
+
+    private static final byte HEADER_START_SIGN = (byte) 0xff;
+    private static final byte HEADER_VERSION_1 = 0x22;
+    private static final byte HEADER_VERSION_2 = 0x23;
+
+    private static final byte RECORD_PING = 0x00;
+    private static final byte RECORD_DATA = 0x01;
+    private static final byte RECORD_TEXT = 0x03;
+    private static final byte RECORD_FILE = 0x04;
+    private static final byte RECORD_BINARY = 0x06;
+
+    private static final byte TAG_LATITUDE = 3;
+    private static final byte TAG_LONGITUDE = 4;
+    private static final byte TAG_COORD_PARAMS = 5;
+
+    public Arnavi4ProtocolDecoder(Arnavi4Protocol protocol) {
+        super(protocol);
+    }
+
+    private void sendResponse(Channel channel, byte version, int index) {
+        if (channel != null) {
+            final ChannelBuffer response;
+            if (version == HEADER_VERSION_1) {
+                response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 4);
+                response.writeByte(0x7b);
+                response.writeByte(0x00);
+                response.writeByte((byte) index);
+                response.writeByte(0x7d);
+            } else if (version == HEADER_VERSION_2) {
+                response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 9);
+                response.writeByte(0x7b);
+                response.writeByte(0x04);
+                response.writeByte(0x00);
+                byte[] timeBytes = ByteBuffer.allocate(4).putInt((int) (System.currentTimeMillis() / 1000)).array();
+                response.writeByte(Checksum.modulo256(timeBytes));
+                response.writeBytes(timeBytes);
+                response.writeByte(0x7d);
+            } else {
+                return; // Ignore unsupported header's versions
+            }
+            channel.write(response);
+        }
+    }
+
+    private Position decodePosition(DeviceSession deviceSession, ChannelBuffer buf, int length, Date time) {
+
+        final Position position = new Position();
+        position.setProtocol(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.setTime(time);
+
+        int readBytes = 0;
+        while (readBytes < length) {
+            short tag = buf.readUnsignedByte();
+            switch (tag) {
+                case TAG_LATITUDE:
+                    position.setLatitude(buf.readFloat());
+                    position.setValid(true);
+                    break;
+
+                case TAG_LONGITUDE:
+                    position.setLongitude(buf.readFloat());
+                    position.setValid(true);
+                    break;
+
+                case TAG_COORD_PARAMS:
+                    position.setCourse(buf.readUnsignedByte() * 2);
+                    position.setAltitude(buf.readUnsignedByte() * 10);
+                    byte satellites = buf.readByte();
+                    position.set(Position.KEY_SATELLITES, satellites & 0x0F + (satellites >> 4) & 0x0F); // gps+glonass
+                    position.setSpeed(buf.readUnsignedByte());
+                    break;
+
+                default:
+                    buf.readBytes(4); // Skip unsupported tags
+                    break;
+            }
+
+            readBytes += 5; // 1 byte tag + 4 bytes value
+        }
+
+        return position;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ChannelBuffer buf = (ChannelBuffer) msg;
+
+        byte startSign = buf.readByte();
+
+        if (startSign == HEADER_START_SIGN) {
+
+            byte version = buf.readByte();
+
+            String imei = String.valueOf(buf.readLong());
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+
+            if (deviceSession != null) {
+                sendResponse(channel, version, 0);
+            }
+
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        List<Position> positions = new LinkedList<>();
+
+        int index = buf.readUnsignedByte();
+
+        byte recordType = buf.readByte();
+        while (buf.readableBytes() > 0) {
+            switch (recordType) {
+                case RECORD_PING:
+                case RECORD_DATA:
+                case RECORD_TEXT:
+                case RECORD_FILE:
+                case RECORD_BINARY:
+                    int length = buf.readUnsignedShort();
+                    Date time = new Date(buf.readUnsignedInt() * 1000);
+
+                    if (recordType == RECORD_DATA) {
+                        positions.add(decodePosition(deviceSession, buf, length, time));
+                    } else {
+                        buf.readBytes(length); // Skip other types of record
+                    }
+
+                    buf.readUnsignedByte(); // crc
+                    break;
+
+                default:
+                    return null; // Ignore unsupported types of record
+            }
+
+            recordType = buf.readByte();
+        }
+
+        sendResponse(channel, HEADER_VERSION_1, index);
+
+        return positions;
+    }
+
+}