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author | Iván Ávalos <avalos@disroot.org> | 2021-12-27 18:22:07 -0600 |
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committer | Iván Ávalos <avalos@disroot.org> | 2021-12-27 18:22:07 -0600 |
commit | f03b999d6d17e53c1c1e1aa2f9271d03f12f2264 (patch) | |
tree | a16d409887e65e4211e0f8ea4fc73a86e637a032 /src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java | |
parent | 3a528ddc88f72f39ff9566cf5e0f54938b1584ef (diff) | |
parent | 790db6295f130e64c8346f13985dd0c15f938b40 (diff) | |
download | traccar-server-f03b999d6d17e53c1c1e1aa2f9271d03f12f2264.tar.gz traccar-server-f03b999d6d17e53c1c1e1aa2f9271d03f12f2264.tar.bz2 traccar-server-f03b999d6d17e53c1c1e1aa2f9271d03f12f2264.zip |
Merge branch 'master' into suntech-fixes
Diffstat (limited to 'src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java new file mode 100644 index 000000000..c64b8171f --- /dev/null +++ b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java @@ -0,0 +1,123 @@ +/* + * Copyright 2021 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.Context; +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; + +public class DualcamProtocolDecoder extends BaseProtocolDecoder { + + public DualcamProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_INIT = 0; + public static final int MSG_START = 1; + public static final int MSG_RESUME = 2; + public static final int MSG_SYNC = 3; + public static final int MSG_DATA = 4; + public static final int MSG_COMPLETE = 5; + public static final int MSG_FILE_REQUEST = 8; + public static final int MSG_INIT_REQUEST = 9; + + private String uniqueId; + private int packetCount; + private int currentPacket; + private ByteBuf photo; + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + int type = buf.readUnsignedShort(); + + switch (type) { + case MSG_INIT: + buf.readUnsignedShort(); // protocol id + uniqueId = String.valueOf(buf.readLong()); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, uniqueId); + long settings = buf.readUnsignedInt(); + if (channel != null && deviceSession != null) { + ByteBuf response = Unpooled.buffer(); + if (BitUtil.between(settings, 26, 28) > 0) { + response.writeShort(MSG_FILE_REQUEST); + String file = BitUtil.check(settings, 26) ? "%photof" : "%photor"; + response.writeShort(file.length()); + response.writeCharSequence(file, StandardCharsets.US_ASCII); + } else { + response.writeShort(MSG_COMPLETE); + } + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + break; + case MSG_START: + buf.readUnsignedShort(); // length + packetCount = buf.readInt(); + currentPacket = 1; + photo = Unpooled.buffer(); + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeShort(MSG_RESUME); + response.writeShort(4); + response.writeInt(currentPacket); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + break; + case MSG_DATA: + buf.readUnsignedShort(); // length + photo.writeBytes(buf, buf.readableBytes() - 2); + if (currentPacket == packetCount) { + deviceSession = getDeviceSession(channel, remoteAddress); + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + getLastLocation(position, null); + try { + position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg")); + } finally { + photo.release(); + photo = null; + } + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeShort(MSG_INIT_REQUEST); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + return position; + } else { + currentPacket += 1; + } + break; + default: + break; + } + + return null; + } + +} |