diff options
| -rw-r--r-- | src/org/traccar/protocol/HuaShengFrameDecoder.java | 19 | ||||
| -rw-r--r-- | test/org/traccar/protocol/HuaShengFrameDecoderTest.java | 8 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/HuaShengFrameDecoder.java b/src/org/traccar/protocol/HuaShengFrameDecoder.java index 5d68fef9e..0e1becc30 100644 --- a/src/org/traccar/protocol/HuaShengFrameDecoder.java +++ b/src/org/traccar/protocol/HuaShengFrameDecoder.java @@ -16,6 +16,7 @@ package org.traccar.protocol; import org.jboss.netty.buffer.ChannelBuffer; +import org.jboss.netty.buffer.ChannelBuffers; import org.jboss.netty.channel.Channel; import org.jboss.netty.channel.ChannelHandlerContext; import org.jboss.netty.handler.codec.frame.FrameDecoder; @@ -34,7 +35,23 @@ public class HuaShengFrameDecoder extends FrameDecoder { int index = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 0xC0); if (index != -1) { - return buf.readBytes(index + 1 - buf.readerIndex()); + ChannelBuffer result = ChannelBuffers.buffer(index + 1 - buf.readerIndex()); + + while (buf.readerIndex() <= index) { + int b = buf.readUnsignedByte(); + if (b == 0xDB) { + int ext = buf.readUnsignedByte(); + if (ext == 0xDC) { + result.writeByte(0xC0); + } else if (ext == 0xDD) { + result.writeByte(0xDB); + } + } else { + result.writeByte(b); + } + } + + return result; } return null; diff --git a/test/org/traccar/protocol/HuaShengFrameDecoderTest.java b/test/org/traccar/protocol/HuaShengFrameDecoderTest.java index 56b8f210c..c3f5c585f 100644 --- a/test/org/traccar/protocol/HuaShengFrameDecoderTest.java +++ b/test/org/traccar/protocol/HuaShengFrameDecoderTest.java @@ -19,6 +19,14 @@ public class HuaShengFrameDecoderTest extends ProtocolTest { binary("c0010c003e0002000000000010020012a0014f42445f3347315f56312e302e330013a0043335353835353035303434303635380006a08701000006a0a1035fc0"), decoder.decode(null, null, binary("c0010c003e0002000000000010020012a0014f42445f3347315f56312e302e330013a0043335353835353035303434303635380006a08701000006a0a1035fc0"))); + Assert.assertEquals( + binary("c00000003faa0000000000003ea5a5005a3f00c000000031363037303530373132353700e6d186ffcc7a25002201160010000000010015000000000000000000c0"), + decoder.decode(null, null, binary("c00000003faa0000000000003ea5a5005a3f00dbdc00000031363037303530373132353700e6d186ffcc7a25002201160010000000010015000000000000000000c0"))); + + Assert.assertEquals( + binary("C000000041AA00000000000030C000000031353035323630373538323800ADDCC100226AEF0000000000120005000100151206EF0504E99975002903EB80556492CEC0"), + decoder.decode(null, null, binary("C000000041AA00000000000030DBDC00000031353035323630373538323800ADDCC100226AEF0000000000120005000100151206EF0504E99975002903EB80556492CEC0"))); + } } |