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Diffstat (limited to 'src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
new file mode 100644
index 000000000..0025cd9e7
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2012 - 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.BitUtil;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class ProgressProtocolDecoder extends BaseProtocolDecoder {
+
+ private long lastIndex;
+ private long newIndex;
+
+ public ProgressProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_NULL = 0;
+ public static final int MSG_IDENT = 1;
+ public static final int MSG_IDENT_FULL = 2;
+ public static final int MSG_POINT = 10;
+ public static final int MSG_LOG_SYNC = 100;
+ public static final int MSG_LOGMSG = 101;
+ public static final int MSG_TEXT = 102;
+ public static final int MSG_ALARM = 200;
+ public static final int MSG_ALARM_RECIEVED = 201;
+
+ private void requestArchive(Channel channel) {
+ if (lastIndex == 0) {
+ lastIndex = newIndex;
+ } else if (newIndex > lastIndex) {
+ ByteBuf request = Unpooled.buffer(12);
+ request.writeShortLE(MSG_LOG_SYNC);
+ request.writeShortLE(4);
+ request.writeIntLE((int) lastIndex);
+ request.writeIntLE(0);
+ channel.writeAndFlush(new NetworkMessage(request, channel.remoteAddress()));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+ int type = buf.readUnsignedShortLE();
+ buf.readUnsignedShortLE(); // length
+
+ if (type == MSG_IDENT || type == MSG_IDENT_FULL) {
+
+ buf.readUnsignedIntLE(); // id
+ int length = buf.readUnsignedShortLE();
+ buf.skipBytes(length);
+ length = buf.readUnsignedShortLE();
+ buf.skipBytes(length);
+ length = buf.readUnsignedShortLE();
+ String imei = buf.readSlice(length).toString(StandardCharsets.US_ASCII);
+ getDeviceSession(channel, remoteAddress, imei);
+
+ } else if (type == MSG_POINT || type == MSG_ALARM || type == MSG_LOGMSG) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ List<Position> positions = new LinkedList<>();
+
+ int recordCount = 1;
+ if (type == MSG_LOGMSG) {
+ recordCount = buf.readUnsignedShortLE();
+ }
+
+ for (int j = 0; j < recordCount; j++) {
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ if (type == MSG_LOGMSG) {
+ position.set(Position.KEY_ARCHIVE, true);
+ int subtype = buf.readUnsignedShortLE();
+ if (subtype == MSG_ALARM) {
+ position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+ }
+ if (buf.readUnsignedShortLE() > buf.readableBytes()) {
+ lastIndex += 1;
+ break; // workaround for device bug
+ }
+ lastIndex = buf.readUnsignedIntLE();
+ position.set(Position.KEY_INDEX, lastIndex);
+ } else {
+ newIndex = buf.readUnsignedIntLE();
+ }
+
+ position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
+ position.setLatitude(buf.readIntLE() * 180.0 / 0x7FFFFFFF);
+ position.setLongitude(buf.readIntLE() * 180.0 / 0x7FFFFFFF);
+ position.setSpeed(buf.readUnsignedIntLE() * 0.01);
+ position.setCourse(buf.readUnsignedShortLE() * 0.01);
+ position.setAltitude(buf.readUnsignedShortLE() * 0.01);
+
+ int satellites = buf.readUnsignedByte();
+ position.setValid(satellites >= 3);
+ position.set(Position.KEY_SATELLITES, satellites);
+
+ position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+
+ long extraFlags = buf.readLongLE();
+
+ if (BitUtil.check(extraFlags, 0)) {
+ int count = buf.readUnsignedShortLE();
+ for (int i = 1; i <= count; i++) {
+ position.set(Position.PREFIX_ADC + i, buf.readUnsignedShortLE());
+ }
+ }
+
+ if (BitUtil.check(extraFlags, 1)) {
+ int size = buf.readUnsignedShortLE();
+ position.set("can", buf.toString(buf.readerIndex(), size, StandardCharsets.US_ASCII));
+ buf.skipBytes(size);
+ }
+
+ if (BitUtil.check(extraFlags, 2)) {
+ position.set("passenger", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedShortLE())));
+ }
+
+ if (type == MSG_ALARM) {
+ position.set(Position.KEY_ALARM, true);
+ byte[] response = {(byte) 0xC9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+ channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(response), remoteAddress));
+ }
+
+ buf.readUnsignedIntLE(); // crc
+
+ positions.add(position);
+ }
+
+ requestArchive(channel);
+
+ return positions;
+ }
+
+ return null;
+ }
+
+}