public void MultipartParserNullBuffer()
{
MimeMultipartParser parser = CreateMimeMultipartParser(128, "-");
int bytesConsumed = 0;
ArraySegment <byte> out1;
ArraySegment <byte> out2;
bool isFinal;
Assert.ThrowsArgumentNull(() => { parser.ParseBuffer(null, 0, ref bytesConsumed, out out1, out out2, out isFinal); }, "buffer");
}
private static MimeMultipartParser.State ParseBufferInSteps(MimeMultipartParser parser, byte[] buffer, int readsize, out List <string> bodyParts, out int totalBytesConsumed)
{
MimeMultipartParser.State state = MimeMultipartParser.State.Invalid;
totalBytesConsumed = 0;
bodyParts = new List <string>();
bool isFinal = false;
byte[] currentBodyPart = new byte[32 * 1024];
int currentBodyLength = 0;
while (totalBytesConsumed <= buffer.Length)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
ArraySegment <byte> out1;
ArraySegment <byte> out2;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed, out out1, out out2, out isFinal);
totalBytesConsumed += bytesConsumed;
Buffer.BlockCopy(out1.Array, out1.Offset, currentBodyPart, currentBodyLength, out1.Count);
currentBodyLength += out1.Count;
Buffer.BlockCopy(out2.Array, out2.Offset, currentBodyPart, currentBodyLength, out2.Count);
currentBodyLength += out2.Count;
if (state == MimeMultipartParser.State.BodyPartCompleted)
{
var bPart = new byte[currentBodyLength];
Buffer.BlockCopy(currentBodyPart, 0, bPart, 0, currentBodyLength);
bodyParts.Add(Encoding.UTF8.GetString(bPart));
currentBodyLength = 0;
if (isFinal)
{
break;
}
}
else if (state != MimeMultipartParser.State.NeedMoreData)
{
return(state);
}
}
Assert.True(isFinal);
return(state);
}
private static MimeMultipartParser.State ParseBufferInSteps(MimeMultipartParser parser, byte[] buffer, int readsize, out List<string> bodyParts, out int totalBytesConsumed)
{
MimeMultipartParser.State state = MimeMultipartParser.State.Invalid;
totalBytesConsumed = 0;
bodyParts = new List<string>();
bool isFinal = false;
byte[] currentBodyPart = new byte[32 * 1024];
int currentBodyLength = 0;
while (true)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
ArraySegment<byte> out1;
ArraySegment<byte> out2;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed, out out1, out out2, out isFinal);
totalBytesConsumed += bytesConsumed;
Buffer.BlockCopy(out1.Array, out1.Offset, currentBodyPart, currentBodyLength, out1.Count);
currentBodyLength += out1.Count;
Buffer.BlockCopy(out2.Array, out2.Offset, currentBodyPart, currentBodyLength, out2.Count);
currentBodyLength += out2.Count;
if (state == MimeMultipartParser.State.BodyPartCompleted)
{
var bPart = new byte[currentBodyLength];
Buffer.BlockCopy(currentBodyPart, 0, bPart, 0, currentBodyLength);
bodyParts.Add(Encoding.UTF8.GetString(bPart));
currentBodyLength = 0;
if (isFinal)
{
break;
}
}
else if (state != MimeMultipartParser.State.NeedMoreData)
{
return state;
}
}
Assert.True(isFinal, "The last segment is not a final segment.");
return state;
}
/// <summary>
/// Parses the data provided and generates parsed MIME body part bodies in the form of <see cref="ArraySegment{T}"/> which are ready to
/// write to the output stream.
/// </summary>
/// <param name="data">The data to parse</param>
/// <param name="bytesRead">The number of bytes available in the input data</param>
/// <returns>Parsed <see cref="MimeBodyPart"/> instances.</returns>
public IEnumerable <MimeBodyPart> ParseBuffer(byte[] data, int bytesRead)
{
int bytesConsumed = 0;
bool isFinal = false;
// There's a special case here - if we've reached the end of the message and there's no optional
// CRLF, then we're out of bytes to read, but we have finished the message.
//
// If IsWaitingForEndOfMessage is true and we're at the end of the stream, then we're going to
// call into the parser again with an empty array as the buffer to signal the end of the parse.
// Then the final boundary segment will be marked as complete.
if (bytesRead == 0 && !_mimeParser.IsWaitingForEndOfMessage)
{
CleanupCurrentBodyPart();
throw new IOException(Properties.Resources.ReadAsMimeMultipartUnexpectedTermination);
}
// Make sure we remove an old array segments.
_currentBodyPart.Segments.Clear();
while (_mimeParser.CanParseMore(bytesRead, bytesConsumed))
{
_mimeStatus = _mimeParser.ParseBuffer(data, bytesRead, ref bytesConsumed, out _parsedBodyPart[0], out _parsedBodyPart[1], out isFinal);
if (_mimeStatus != MimeMultipartParser.State.BodyPartCompleted && _mimeStatus != MimeMultipartParser.State.NeedMoreData)
{
CleanupCurrentBodyPart();
throw Error.InvalidOperation(Properties.Resources.ReadAsMimeMultipartParseError, bytesConsumed, data);
}
// First body is empty preamble which we just ignore
if (_isFirst)
{
if (_mimeStatus == MimeMultipartParser.State.BodyPartCompleted)
{
_isFirst = false;
}
continue;
}
// Parse the two array segments containing parsed body parts that the MIME parser gave us
foreach (ArraySegment <byte> part in _parsedBodyPart)
{
if (part.Count == 0)
{
continue;
}
if (_bodyPartHeaderStatus != ParserState.Done)
{
int headerConsumed = part.Offset;
_bodyPartHeaderStatus = _currentBodyPart.HeaderParser.ParseBuffer(part.Array, part.Count + part.Offset, ref headerConsumed);
if (_bodyPartHeaderStatus == ParserState.Done)
{
// Add the remainder as body part content
_currentBodyPart.Segments.Add(new ArraySegment <byte>(part.Array, headerConsumed, part.Count + part.Offset - headerConsumed));
}
else if (_bodyPartHeaderStatus != ParserState.NeedMoreData)
{
CleanupCurrentBodyPart();
throw Error.InvalidOperation(Properties.Resources.ReadAsMimeMultipartHeaderParseError, headerConsumed, part.Array);
}
}
else
{
// Add the data as body part content
_currentBodyPart.Segments.Add(part);
}
}
if (_mimeStatus == MimeMultipartParser.State.BodyPartCompleted)
{
// If body is completed then swap current body part
MimeBodyPart completed = _currentBodyPart;
completed.IsComplete = true;
completed.IsFinal = isFinal;
_currentBodyPart = new MimeBodyPart(_streamProvider, _maxBodyPartHeaderSize, _content);
_mimeStatus = MimeMultipartParser.State.NeedMoreData;
_bodyPartHeaderStatus = ParserState.NeedMoreData;
yield return(completed);
}
else
{
// Otherwise return what we have
yield return(_currentBodyPart);
}
}
}
/// <summary>
/// Parses the data provided and generates parsed MIME body part bodies in the form of <see cref="ArraySegment{T}"/> which are ready to
/// write to the output stream.
/// </summary>
/// <param name="data">The data to parse</param>
/// <param name="bytesRead">The number of bytes available in the input data</param>
/// <returns>Parsed <see cref="MimeBodyPart"/> instances.</returns>
public IEnumerable <MimeBodyPart> ParseBuffer(byte[] data, int bytesRead)
{
int bytesConsumed = 0;
bool isFinal = false;
if (bytesRead == 0)
{
CleanupCurrentBodyPart();
throw new IOException(Properties.Resources.ReadAsMimeMultipartUnexpectedTermination);
}
// Make sure we remove an old array segments.
_currentBodyPart.Segments.Clear();
while (bytesConsumed < bytesRead)
{
_mimeStatus = _mimeParser.ParseBuffer(data, bytesRead, ref bytesConsumed, out _parsedBodyPart[0], out _parsedBodyPart[1], out isFinal);
if (_mimeStatus != MimeMultipartParser.State.BodyPartCompleted && _mimeStatus != MimeMultipartParser.State.NeedMoreData)
{
CleanupCurrentBodyPart();
throw new IOException(RS.Format(Properties.Resources.ReadAsMimeMultipartParseError, bytesConsumed, data));
}
// First body is empty preamble which we just ignore
if (_isFirst)
{
if (_mimeStatus == MimeMultipartParser.State.BodyPartCompleted)
{
_isFirst = false;
}
continue;
}
// Parse the two array segments containing parsed body parts that the MIME parser gave us
foreach (ArraySegment <byte> part in _parsedBodyPart)
{
if (part.Count == 0)
{
continue;
}
if (_bodyPartHeaderStatus != ParserState.Done)
{
int headerConsumed = part.Offset;
_bodyPartHeaderStatus = _currentBodyPart.HeaderParser.ParseBuffer(part.Array, part.Count + part.Offset, ref headerConsumed);
if (_bodyPartHeaderStatus == ParserState.Done)
{
// Add the remainder as body part content
_currentBodyPart.Segments.Add(new ArraySegment <byte>(part.Array, headerConsumed, part.Count + part.Offset - headerConsumed));
}
else if (_bodyPartHeaderStatus != ParserState.NeedMoreData)
{
CleanupCurrentBodyPart();
throw new IOException(RS.Format(Properties.Resources.ReadAsMimeMultipartHeaderParseError, headerConsumed, part.Array));
}
}
else
{
// Add the data as body part content
_currentBodyPart.Segments.Add(part);
}
}
if (_mimeStatus == MimeMultipartParser.State.BodyPartCompleted)
{
// If body is completed then swap current body part
MimeBodyPart completed = _currentBodyPart;
completed.IsComplete = true;
completed.IsFinal = isFinal;
_currentBodyPart = new MimeBodyPart(_streamProvider, _maxBodyPartHeaderSize);
_mimeStatus = MimeMultipartParser.State.NeedMoreData;
_bodyPartHeaderStatus = ParserState.NeedMoreData;
yield return(completed);
}
else
{
// Otherwise return what we have
yield return(_currentBodyPart);
}
}
}