diff options
Diffstat (limited to 'src/org/traccar/protocol')
| -rw-r--r-- | src/org/traccar/protocol/AtrackFrameDecoder.java | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/src/org/traccar/protocol/AtrackFrameDecoder.java b/src/org/traccar/protocol/AtrackFrameDecoder.java index 3d33d9862..f071e2d97 100644 --- a/src/org/traccar/protocol/AtrackFrameDecoder.java +++ b/src/org/traccar/protocol/AtrackFrameDecoder.java @@ -21,6 +21,8 @@ import io.netty.channel.ChannelHandlerContext; import org.traccar.BaseFrameDecoder; import org.traccar.helper.BufferUtil; +import java.nio.charset.StandardCharsets; + public class AtrackFrameDecoder extends BaseFrameDecoder { private static final int KEEPALIVE_LENGTH = 12; @@ -48,9 +50,24 @@ public class AtrackFrameDecoder extends BaseFrameDecoder { } else { - int endIndex = BufferUtil.indexOf("\r\n", buf); - if (endIndex > 0) { - return buf.readRetainedSlice(endIndex - buf.readerIndex() + 2); + int lengthStart = buf.indexOf(buf.readerIndex() + 3, buf.writerIndex(), (byte) ',') + 1; + if (lengthStart > 0) { + int lengthEnd = buf.indexOf(lengthStart, buf.writerIndex(), (byte) ','); + if (lengthEnd > 0) { + int length = lengthEnd + Integer.parseInt(buf.toString( + lengthStart, lengthEnd - lengthStart, StandardCharsets.US_ASCII)); + if (buf.readableBytes() > length && buf.getByte(buf.readerIndex() + length) == '\n') { + length += 1; + } + if (buf.readableBytes() >= length) { + return buf.readRetainedSlice(length); + } + } + } else { + int endIndex = BufferUtil.indexOf("\r\n", buf); + if (endIndex > 0) { + return buf.readRetainedSlice(endIndex - buf.readerIndex() + 2); + } } } |