int GetCount(byte formatCode, ByteBuffer buffer)
{
int count;
if (formatCode >= 0xA0)
{
//bin8 a0 10100001
//str8 a1 10100001
//sym8 a3 10100011
//list8 c0 11000000
//map8 c1 11000001
//arr8 e0 11100000
//bin32 b0 10110000
//str32 b1 10110001
//sym32 b3 10110011
//lit32 d0 11010000
//map32 d1 11010001
//arr32 f0 11110000
if ((formatCode & 0x10) == 0)
{
count = AmqpBitConverter.ReadUByte(buffer);
}
else
{
count = AmqpBitConverter.ReadInt(buffer);
}
}
else
{
count = (1 << ((formatCode >> 4) - 4)) >> 1;
}
return(count);
}
public static Frame Decode(ByteBuffer buffer, bool fullBody = true)
{
Frame frame = new Frame();
frame.RawBuffer = buffer.Array;
// Header
frame.size = (int)AmqpBitConverter.ReadUInt(buffer);
frame.dataOffset = AmqpBitConverter.ReadUByte(buffer);
frame.Type = (FrameType)AmqpBitConverter.ReadUByte(buffer);
frame.Channel = AmqpBitConverter.ReadUShort(buffer);
// skip extended header
buffer.Complete(frame.dataOffset * 4 - Frame.HeaderSize);
// Command
if (buffer.Length > 0)
{
frame.Command = (Performative)AmqpCodec.CreateAmqpDescribed(buffer);
if (fullBody)
{
frame.Command.DecodeValue(buffer);
}
}
return(frame);
}
static string ReadString(ByteBuffer buffer, byte formatCode, byte code8, byte code32, string type)
{
if (formatCode == FormatCode.Null)
{
return(null);
}
int count;
if (formatCode == code8)
{
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == code32)
{
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
buffer.Validate(false, count);
string value = new string(Encoding.UTF8.GetChars(buffer.Buffer, buffer.Offset, count));
buffer.Complete(count);
return(value);
}
public static byte[] ReadBinary(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.Null)
{
return(null);
}
int count;
if (formatCode == FormatCode.Binary8)
{
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.Binary32)
{
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
buffer.Validate(false, count);
byte[] value = new byte[count];
Array.Copy(buffer.Buffer, buffer.Offset, value, 0, count);
buffer.Complete(count);
return(value);
}
internal override void DecodeValue(ByteBuffer buffer)
{
int offset = buffer.Offset;
byte formatCode = Encoder.ReadFormatCode(buffer);
if (formatCode == FormatCode.Binary8)
{
this.binaryOffset = 2;
}
else if (formatCode == FormatCode.Binary32)
{
this.binaryOffset = 5;
}
else
{
while (formatCode == FormatCode.Described)
{
Encoder.ReadObject(buffer);
formatCode = Encoder.ReadFormatCode(buffer);
}
}
int count;
if (formatCode >= 0xA0)
{
//bin8 a0 10100001
//str8 a1 10100001
//sym8 a3 10100011
//list8 c0 11000000
//map8 c1 11000001
//arr8 e0 11100000
//bin32 b0 10110000
//str32 b1 10110001
//sym32 b3 10110011
//lit32 d0 11010000
//map32 d1 11010001
//arr32 f0 11110000
if ((formatCode & 0x10) == 0)
{
count = AmqpBitConverter.ReadUByte(buffer);
}
else
{
count = AmqpBitConverter.ReadInt(buffer);
}
}
else
{
count = (1 << ((formatCode >> 4) - 4)) >> 1;
}
buffer.Validate(false, count);
buffer.Complete(count);
int size = buffer.Offset - offset;
this.valueBuffer = new ByteBuffer(buffer.Buffer, offset, size, size);
}
private void DecodeHeader(ByteBuffer buffer)
{
this.Size = (int)AmqpBitConverter.ReadUInt(buffer);
this.DataOffset = AmqpBitConverter.ReadUByte(buffer);
this.Type = (FrameType)AmqpBitConverter.ReadUByte(buffer);
this.Channel = AmqpBitConverter.ReadUShort(buffer);
buffer.Complete(this.DataOffset * 4 - 8);
}
public static byte?Decode(ByteBuffer buffer, FormatCode formatCode)
{
if (formatCode == 0 && (formatCode = AmqpEncoding.ReadFormatCode(buffer)) == FormatCode.Null)
{
return(null);
}
return(AmqpBitConverter.ReadUByte(buffer));
}
void DecodeHeader(ByteBuffer buffer)
{
this.Size = (int)AmqpBitConverter.ReadUInt(buffer);
this.DataOffset = AmqpBitConverter.ReadUByte(buffer);
this.Type = (FrameType)AmqpBitConverter.ReadUByte(buffer);
this.Channel = AmqpBitConverter.ReadUShort(buffer);
// skip extended header
buffer.Complete(this.DataOffset * 4 - Frame.HeaderSize);
}
public static byte ReadUByte(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.UByte)
{
return(AmqpBitConverter.ReadUByte(buffer));
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
}
public void Decode(ByteBuffer buffer)
{
if (buffer.Length < this.EncodeSize)
{
throw AmqpEncoding.GetEncodingException(SRAmqp.AmqpInsufficientBufferSize(this.EncodeSize, buffer.Length));
}
if (AmqpBitConverter.ReadUInt(buffer) != 1095586128)
{
throw AmqpEncoding.GetEncodingException("ProtocolName");
}
this.protocolId = (Microsoft.ServiceBus.Messaging.Amqp.ProtocolId)AmqpBitConverter.ReadUByte(buffer);
this.version = new AmqpVersion(AmqpBitConverter.ReadUByte(buffer), AmqpBitConverter.ReadUByte(buffer), AmqpBitConverter.ReadUByte(buffer));
}
public static AmqpFrame DecodeFrame(ByteBuffer buffer, out ushort channelNumber)
{
#if DEBUG
byte[] debugFrameBuffer = new byte[buffer.LengthAvailableToRead];
Buffer.BlockCopy(buffer.Buffer, buffer.ReadOffset, debugFrameBuffer, 0, buffer.LengthAvailableToRead);
#endif
int frameStartOffset = buffer.ReadOffset;
// frame header
uint frameSize = AmqpBitConverter.ReadUInt(buffer);
byte dataOffset = AmqpBitConverter.ReadUByte(buffer);
byte frameType = AmqpBitConverter.ReadUByte(buffer);
channelNumber = AmqpBitConverter.ReadUShort(buffer); // out param
if (dataOffset < 2)
{
throw new AmqpException(ErrorCode.FramingError, $"DOFF must be >= 2. Value is {dataOffset.ToHex()}");
}
// data offset is always counted in 4-byte words. header total length is 8 bytes
int bodyStartOffset = 4 * dataOffset;
// forward the reader the number of bytes needed to reach the frame body
buffer.CompleteRead((bodyStartOffset - 8));
if (frameSize == bodyStartOffset)
{
// empty frame body
return(null);
}
// we're expecting a described list...
var formatCode = DecodeFormatCode(buffer);
if (formatCode != FormatCode.Described)
{
throw new AmqpException(ErrorCode.FramingError, $"Expected Format Code = {FormatCode.Described.ToHex()} but was {formatCode.ToHex()}");
}
try
{
// decode
return((AmqpFrame)DecodeDescribedType(buffer, formatCode));
}
catch (Exception)
{
#if DEBUG
TraceSource.FromClass().Debug(Environment.NewLine + debugFrameBuffer.ToHex());
#endif
throw;
}
}
static Error ScanDataSection(byte formatCode, ByteBuffer buffer)
{
switch (formatCode)
{
case FormatCode.Binary8:
return(AdvanceBuffer(buffer, AmqpBitConverter.ReadUByte(buffer)));
case FormatCode.Binary32:
return(AdvanceBuffer(buffer, AmqpBitConverter.ReadUInt(buffer)));
default:
return(GetDecodeError(AmqpResources.GetString(Resources.AmqpInvalidFormatCode, formatCode, buffer.Offset)));
}
}
public static void Decode(ByteBuffer buffer, out ushort channel, out DescribedList command)
{
AmqpBitConverter.ReadUInt(buffer);
AmqpBitConverter.ReadUByte(buffer);
AmqpBitConverter.ReadUByte(buffer);
channel = AmqpBitConverter.ReadUShort(buffer);
if (buffer.Length > 0)
{
command = (DescribedList)Codec.Decode(buffer);
}
else
{
command = null;
}
}
private static void SkipBinaryBuffer(ByteBuffer buffer)
{
var binaryFormatCode = AmqpCodec.DecodeFormatCode(buffer);
int size = 0;
if (binaryFormatCode == FormatCode.Binary8)
{
size = AmqpBitConverter.ReadUByte(buffer);
}
else if (binaryFormatCode == FormatCode.Binary32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
}
buffer.CompleteRead(size);
}
bool OnFrame(Stream stream, ByteBuffer buffer)
{
buffer.Complete(1);
byte type = AmqpBitConverter.ReadUByte(buffer);
ushort channel = AmqpBitConverter.ReadUShort(buffer);
DescribedList command = (DescribedList)Encoder.ReadDescribed(buffer, Encoder.ReadFormatCode(buffer));
Amqp.Message message = null;
if (command.Descriptor.Code == FrameCodes.TRANSFER)
{
message = Amqp.Message.Decode(buffer);
}
return(testAmqpPeer.OnFrame(stream, channel, command, message));
}
public static bool?Decode(ByteBuffer buffer, FormatCode formatCode)
{
if (formatCode == 0 && (formatCode = AmqpEncoding.ReadFormatCode(buffer)) == FormatCode.Null)
{
return(null);
}
VerifyFormatCode(formatCode, buffer.Offset, FormatCode.Boolean, FormatCode.BooleanFalse, FormatCode.BooleanTrue);
if (formatCode == FormatCode.Boolean)
{
return(AmqpBitConverter.ReadUByte(buffer) != 0);
}
else
{
return(formatCode == FormatCode.BooleanTrue ? true : false);
}
}
protected override void DecodeValue(ByteBuffer buffer)
{
var formatCode = AmqpCodec.DecodeFormatCode(buffer);
if (formatCode == FormatCode.Null)
{
return; // nothing to decode
}
int size;
int count;
if (formatCode == FormatCode.List0)
{
size = count = 0;
}
else if (formatCode == FormatCode.List8)
{
size = AmqpBitConverter.ReadUByte(buffer);
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.List32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw new AmqpException(ErrorCode.DecodeError, $"The format code '{formatCode}' at frame buffer offset '{buffer.ReadOffset}' is invalid.");
}
var thisType = GetType();
for (int i = 0; i < count; i++)
{
var itemFormatCode = AmqpCodec.DecodeFormatCode(buffer);
if (itemFormatCode == FormatCode.Null)
{
continue; // null value, ignore and continue
}
GetDecoderDelegate(thisType, i)(this, buffer, itemFormatCode);
}
}
public static ulong ReadULong(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.ULong0)
{
return(0);
}
else if (formatCode == FormatCode.SmallULong)
{
return(AmqpBitConverter.ReadUByte(buffer));
}
else if (formatCode == FormatCode.ULong)
{
return(AmqpBitConverter.ReadULong(buffer));
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
}
public static uint ReadUInt(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.UInt0)
{
return(0);
}
else if (formatCode == FormatCode.SmallUInt)
{
return(AmqpBitConverter.ReadUByte(buffer));
}
else if (formatCode == FormatCode.UInt)
{
return(AmqpBitConverter.ReadUInt(buffer));
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
}
public static Array ReadArray(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.Null)
{
return(null);
}
int size;
int count;
if (formatCode == FormatCode.Array8)
{
size = AmqpBitConverter.ReadUByte(buffer);
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.Array32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
formatCode = Encoder.ReadFormatCode(buffer);
Serializer codec = GetSerializer(formatCode);
if (codec == null)
{
throw DecodeException(formatCode, buffer.Offset);
}
Array value = Array.CreateInstance(codec.Type, count);
IList list = value;
for (int i = 0; i < count; ++i)
{
list[i] = codec.Decoder(buffer, formatCode);
}
return(value);
}
public static ulong?Decode(ByteBuffer buffer, FormatCode formatCode)
{
if (formatCode == 0 && (formatCode = AmqpEncoding.ReadFormatCode(buffer)) == FormatCode.Null)
{
return(null);
}
VerifyFormatCode(formatCode, buffer.Offset, FormatCode.ULong, FormatCode.SmallULong, FormatCode.ULong0);
if (formatCode == FormatCode.ULong0)
{
return(0);
}
else
{
return(formatCode == FormatCode.SmallULong ?
AmqpBitConverter.ReadUByte(buffer) :
AmqpBitConverter.ReadULong(buffer));
}
}
private static void SkipDescribedList(ByteBuffer buffer)
{
// read the list length and move forward
var listFormatCode = AmqpCodec.DecodeFormatCode(buffer);
int size = 0;
if (listFormatCode == FormatCode.List0)
{
size = 0;
}
else if (listFormatCode == FormatCode.List8)
{
size = AmqpBitConverter.ReadUByte(buffer);
}
else if (listFormatCode == FormatCode.List32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
}
buffer.CompleteRead(size);
}
public static bool ReadBoolean(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.BooleanTrue)
{
return(true);
}
else if (formatCode == FormatCode.BooleanFalse)
{
return(false);
}
else if (formatCode == FormatCode.Boolean)
{
byte data = AmqpBitConverter.ReadUByte(buffer);
return(data != 0);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
}
public void Decode(ByteBuffer buffer)
{
if (buffer.Length < this.EncodeSize)
{
throw new AmqpException(AmqpErrorCode.DecodeError, AmqpResources.GetString(AmqpResources.AmqpInsufficientBufferSize, this.EncodeSize, buffer.Length));
}
uint prefix = AmqpBitConverter.ReadUInt(buffer);
if (prefix != ProtocolHeader.AmqpPrefix)
{
throw new AmqpException(AmqpErrorCode.DecodeError, "ProtocolName" + prefix.ToString("X8"));
}
this.protocolId = (ProtocolId)AmqpBitConverter.ReadUByte(buffer);
this.version = new AmqpVersion(
AmqpBitConverter.ReadUByte(buffer),
AmqpBitConverter.ReadUByte(buffer),
AmqpBitConverter.ReadUByte(buffer));
}
public static ProtocolHeader Decode(ByteBuffer buffer)
{
if (buffer.Length < ProtocolHeader.Size)
{
throw AmqpEncoding.GetEncodingException("BufferSize");
}
uint prefix = AmqpBitConverter.ReadUInt(buffer);
if (prefix != ProtocolHeader.AmqpPrefix)
{
throw AmqpEncoding.GetEncodingException("ProtocolName");
}
ProtocolHeader header = new ProtocolHeader();
header.protocolId = (ProtocolId)AmqpBitConverter.ReadUByte(buffer);
header.version = new AmqpVersion(AmqpBitConverter.ReadUByte(buffer), AmqpBitConverter.ReadUByte(buffer), AmqpBitConverter.ReadUByte(buffer));
header.Buffer = new ArraySegment <byte>(buffer.Buffer, buffer.Offset - ProtocolHeader.Size, ProtocolHeader.Size);
return(header);
}
public static Map ReadMap(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.Null)
{
return(null);
}
int size;
int count;
if (formatCode == FormatCode.Map8)
{
size = AmqpBitConverter.ReadUByte(buffer);
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.Map32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
if (count % 2 > 0)
{
throw new AmqpException(ErrorCode.DecodeError,
Fx.Format(SRAmqp.InvalidMapCount, count));
}
Map value = new Map();
for (int i = 0; i < count; i += 2)
{
value.Add(ReadObject(buffer), ReadObject(buffer));
}
return(value);
}
public static List ReadList(ByteBuffer buffer, byte formatCode)
{
if (formatCode == FormatCode.Null)
{
return(null);
}
int size;
int count;
if (formatCode == FormatCode.List0)
{
size = count = 0;
}
else if (formatCode == FormatCode.List8)
{
size = AmqpBitConverter.ReadUByte(buffer);
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.List32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw DecodeException(formatCode, buffer.Offset);
}
List value = new List();
for (int i = 0; i < count; ++i)
{
value.Add(ReadObject(buffer));
}
return(value);
}
protected static void ReadSizeAndCount(ByteBuffer buffer, byte formatCode, out int size, out int count, out int width)
{
if (formatCode == FormatCode.List0)
{
size = count = width = 0;
}
else if (formatCode == FormatCode.List8 || formatCode == FormatCode.Map8)
{
width = FixedWidth.UByte;
size = AmqpBitConverter.ReadUByte(buffer);
count = AmqpBitConverter.ReadUByte(buffer);
}
else if (formatCode == FormatCode.List32 || formatCode == FormatCode.Map32)
{
width = FixedWidth.UInt;
size = (int)AmqpBitConverter.ReadUInt(buffer);
count = (int)AmqpBitConverter.ReadUInt(buffer);
}
else
{
throw new AmqpException(ErrorCode.InvalidField, Fx.Format(SRAmqp.AmqpInvalidFormatCode, formatCode, buffer.Offset));
}
}
static Error ScanValueSection(byte formatCode, ByteBuffer buffer, int depth = 0)
{
if (formatCode == FormatCode.Described)
{
if (depth > 10)
{
// protection for stack overflow
return(GetDecodeError(AmqpResources.GetString(Resources.AmqpInvalidFormatCode, formatCode, buffer.Offset)));
}
Error error = ScanValueSection(AmqpEncoding.ReadFormatCode(buffer), buffer, depth + 1);
if (error != null)
{
return(error);
}
formatCode = AmqpEncoding.ReadFormatCode(buffer);
}
uint size;
if (formatCode >= FormatCode.Binary8)
{
// variable width
size = (formatCode & 0x10) == 0 ?
AmqpBitConverter.ReadUByte(buffer) :
AmqpBitConverter.ReadUInt(buffer);
}
else
{
// fixed width
size = (uint)((1 << ((formatCode >> 4) - 4)) >> 1);
}
return(AdvanceBuffer(buffer, size));
}
public void TestMethod_AmqpBitConverter()
{
ByteBuffer buffer = new ByteBuffer(128, true);
AmqpBitConverter.WriteByte(buffer, 0x22);
AmqpBitConverter.WriteByte(buffer, -0x22);
AmqpBitConverter.WriteUByte(buffer, 0x22);
AmqpBitConverter.WriteUByte(buffer, 0xB2);
AmqpBitConverter.WriteShort(buffer, 0x22B7);
AmqpBitConverter.WriteShort(buffer, -0x22B7);
AmqpBitConverter.WriteUShort(buffer, 0x22B7);
AmqpBitConverter.WriteUShort(buffer, 0xC2B7);
AmqpBitConverter.WriteInt(buffer, 0x340da287);
AmqpBitConverter.WriteInt(buffer, -0x340da287);
AmqpBitConverter.WriteUInt(buffer, 0x340da287);
AmqpBitConverter.WriteUInt(buffer, 0xF40da287);
AmqpBitConverter.WriteLong(buffer, 0x5d00BB9A340da287);
AmqpBitConverter.WriteLong(buffer, -0x5d00BB9A340da287);
AmqpBitConverter.WriteULong(buffer, 0x5d00BB9A340da287);
AmqpBitConverter.WriteULong(buffer, 0xad00BB9A340da287);
AmqpBitConverter.WriteFloat(buffer, 12344.4434F);
AmqpBitConverter.WriteFloat(buffer, -12344.4434F);
AmqpBitConverter.WriteDouble(buffer, 39432123244.44352334);
AmqpBitConverter.WriteDouble(buffer, -39432123244.44352334);
Guid uuid = Guid.NewGuid();
AmqpBitConverter.WriteUuid(buffer, uuid);
sbyte b = AmqpBitConverter.ReadByte(buffer);
sbyte b2 = AmqpBitConverter.ReadByte(buffer);
byte ub = AmqpBitConverter.ReadUByte(buffer);
byte ub2 = AmqpBitConverter.ReadUByte(buffer);
short s = AmqpBitConverter.ReadShort(buffer);
short s2 = AmqpBitConverter.ReadShort(buffer);
ushort us = AmqpBitConverter.ReadUShort(buffer);
ushort us2 = AmqpBitConverter.ReadUShort(buffer);
int i = AmqpBitConverter.ReadInt(buffer);
int i2 = AmqpBitConverter.ReadInt(buffer);
uint ui = AmqpBitConverter.ReadUInt(buffer);
uint ui2 = AmqpBitConverter.ReadUInt(buffer);
long l = AmqpBitConverter.ReadLong(buffer);
long l2 = AmqpBitConverter.ReadLong(buffer);
ulong ul = AmqpBitConverter.ReadULong(buffer);
ulong ul2 = AmqpBitConverter.ReadULong(buffer);
float f = AmqpBitConverter.ReadFloat(buffer);
float f2 = AmqpBitConverter.ReadFloat(buffer);
double d = AmqpBitConverter.ReadDouble(buffer);
double d2 = AmqpBitConverter.ReadDouble(buffer);
Guid uuid2 = AmqpBitConverter.ReadUuid(buffer);
}