public override void Parse()
{
try
{
MimeReaderState state = MimeReaderState.ReadingHeaders;
MimeHeaderReader headerReader = new MimeHeaderReader(_encoding);
// Read the first chunk
int read = _stream.Read(_buffer, 0, _buffer.Length);
// Skip past the first boundary
int position = IndexOf(0, read) + _boundary.Length;
// If the end is here, we're done (empty request)
if (_encoding.GetString(_buffer, position, 2) == "--" && (char)_buffer[position + 3] == '\r' || (char)_buffer[position + 3] == '\n')
{
return;
}
// Skip past the end line
if ((char)_buffer[position] == '\r')
{
position += 2;
}
else if ((char)_buffer[position] == '\n')
{
position += 1;
}
int zeroReads = 0;
while (state != MimeReaderState.Finished)
{
switch (state)
{
case MimeReaderState.ReadingHeaders:
position += headerReader.Read(_buffer, position);
if (headerReader.HeaderComplete)
{
state = MimeReaderState.ReadingBody;
_handler.BeginPart(headerReader.Headers);
headerReader.Reset();
}
break;
case MimeReaderState.ReadingBody:
int boundaryPos = IndexOf(position, read);
// If block ends with \r or \n or a combo, consider that a boundary start
if (boundaryPos == -1)
{
if (read > 1 && _buffer[read - 2] == '\r')
{
boundaryPos = read - 2;
}
else if (read > 0 && (_buffer[read - 1] == '\r' || _buffer[read - 1] == '\n'))
{
boundaryPos = read - 1;
}
}
// If boundary not found
if (boundaryPos == -1)
{
_handler.PartData(ref _buffer, position, read - position);
position += read - position;
}
else
{
int actualLength;
actualLength = boundaryPos - position;
if (actualLength >= 2)
{
if ((char)_buffer[boundaryPos - 2] == '\r')
{
actualLength -= 2;
}
else if ((char)_buffer[boundaryPos - 2] == '\n')
{
actualLength -= 1;
}
}
_handler.PartData(ref _buffer, position, actualLength);
// Check for end
if (boundaryPos <= read - (_boundary.Length + 2))
{
// Check for "--" which means last part
bool isLast = (_encoding.GetString(_buffer, boundaryPos + _boundary.Length, 2) == "--");
if (isLast)
{
state = MimeReaderState.Finished;
}
else
{
state = MimeReaderState.ReadingHeaders;
}
_handler.EndPart(isLast, true);
position += (boundaryPos + _boundary.Length - position + 2);
}
// Boundary laps over
else
{
// Also take the possible cr/lf combo removed above
boundaryPos -= ((boundaryPos - position) - actualLength);
int boundaryFragmentLength = read - boundaryPos;
// Move the boundary data to the front of the buffer
Buffer.BlockCopy(_buffer, boundaryPos, _buffer, 0, boundaryFragmentLength);
// Load in more data
read = _stream.Read(_buffer, boundaryFragmentLength, _buffer.Length - boundaryFragmentLength);
// Reset position
position = 0;
// Adjust read count because of existing data in buffer
read += boundaryFragmentLength;
}
}
break;
}
// Get more data if we need it
if (state != MimeReaderState.Finished)
{
if (position >= read)
{
read = _stream.Read(_buffer, 0, _buffer.Length);
position = 0;
if (read == 0)
{
if (zeroReads == 10)
{
throw new UploadDisconnectedException();
}
zeroReads++;
System.Threading.Thread.Sleep(100);
}
else
{
zeroReads = 0;
}
}
}
}
}
catch (UploadCancelledException)
{
throw;
}
catch
{
_handler.EndPart(false, false);
throw;
}
}
public override void Parse()
{
try
{
MimeReaderState state = MimeReaderState.ReadingHeaders;
MimeHeaderReader headerReader = new MimeHeaderReader(_encoding);
// Read the first chunk
int read = _stream.Read(_buffer, 0, _buffer.Length);
// Skip past the first boundary
int position = IndexOf(0, read) + _boundary.Length;
// If the end is here, we're done (empty request)
if (_encoding.GetString(_buffer, position, 2) == "--" && (char)_buffer[position + 3] == '\r' || (char)_buffer[position + 3] == '\n')
return;
// Skip past the end line
if ((char)_buffer[position] == '\r')
position += 2;
else if ((char)_buffer[position] == '\n')
position += 1;
int zeroReads = 0;
while (state != MimeReaderState.Finished)
{
switch (state)
{
case MimeReaderState.ReadingHeaders:
position += headerReader.Read(_buffer, position);
if (headerReader.HeaderComplete)
{
state = MimeReaderState.ReadingBody;
_handler.BeginPart(headerReader.Headers);
headerReader.Reset();
}
break;
case MimeReaderState.ReadingBody:
int boundaryPos = IndexOf(position, read);
// If block ends with \r or \n or a combo, consider that a boundary start
if (boundaryPos == -1)
{
if (read > 1 && _buffer[read - 2] == '\r')
boundaryPos = read - 2;
else if (read > 0 && (_buffer[read - 1] == '\r' || _buffer[read - 1] == '\n'))
boundaryPos = read - 1;
}
// If boundary not found
if (boundaryPos == -1)
{
_handler.PartData(ref _buffer, position, read - position);
position += read - position;
}
else
{
int actualLength;
actualLength = boundaryPos - position;
if (actualLength >= 2)
{
if ((char)_buffer[boundaryPos - 2] == '\r')
actualLength -= 2;
else if ((char)_buffer[boundaryPos - 2] == '\n')
actualLength -= 1;
}
_handler.PartData(ref _buffer, position, actualLength);
// Check for end
if (boundaryPos <= read - (_boundary.Length + 2))
{
// Check for "--" which means last part
bool isLast = (_encoding.GetString(_buffer, boundaryPos + _boundary.Length, 2) == "--");
if (isLast)
{
state = MimeReaderState.Finished;
}
else
{
state = MimeReaderState.ReadingHeaders;
}
_handler.EndPart(isLast, true);
position += (boundaryPos + _boundary.Length - position + 2);
}
// Boundary laps over
else
{
// Also take the possible cr/lf combo removed above
boundaryPos -= ((boundaryPos - position) - actualLength);
int boundaryFragmentLength = read - boundaryPos;
// Move the boundary data to the front of the buffer
Buffer.BlockCopy(_buffer, boundaryPos, _buffer, 0, boundaryFragmentLength);
// Load in more data
read = _stream.Read(_buffer, boundaryFragmentLength, _buffer.Length - boundaryFragmentLength);
// Reset position
position = 0;
// Adjust read count because of existing data in buffer
read += boundaryFragmentLength;
}
}
break;
}
// Get more data if we need it
if (state != MimeReaderState.Finished)
{
if (position >= read)
{
read = _stream.Read(_buffer, 0, _buffer.Length);
position = 0;
if (read == 0)
{
if (zeroReads == 10)
throw new UploadDisconnectedException();
zeroReads++;
System.Threading.Thread.Sleep(100);
}
else
{
zeroReads = 0;
}
}
}
}
}
catch (UploadCancelledException)
{
throw;
}
catch
{
_handler.EndPart(false, false);
throw;
}
}