public MultipartMessage ParseMessage(string contentType, Stream inputStream)
{
if (log.IsDebugEnabled)
log.DebugFormat("Message content-type: '{0}'", contentType);
HeaderField contentTypeField = ParseHeaderField(
HttpConstants.ContentType,
contentType);
MultipartMessage message = new MultipartMessage(contentTypeField);
if (!message.IsMultipart)
throw ParserException("This is not a MIME multipart message. The content type '{0}' is not supported", contentType);
if (log.IsDebugEnabled)
log.DebugFormat("Multipart message boundary: '{0}'", message.Boundary);
BinaryBufferWithPatternWatching buffer = new BinaryBufferWithPatternWatching(
ConstructDelimiterBuffer(message));
try
{
SkipToFirstDelimiter(inputStream, buffer);
while (true)
{
int markerByte1 = inputStream.ReadByte();
int markerByte2 = inputStream.ReadByte();
if (markerByte1 == -1 || markerByte2 == -1)
throw ParserException("Unexpected end of stream (1).");
if ((byte)markerByte1 == '-' && (byte)markerByte2 == '-')
break;
if ((byte)markerByte1 == '\r' && (byte)markerByte2 == '\n')
{
MultipartMessagePart part = ReadPart(message, inputStream, buffer);
message.AddPart(part);
}
else
throw ParserException("Invalid multipart message: unexpected message part markers.");
}
return message;
}
catch (EndOfStreamException ex)
{
throw new MultipartMessageParserException("Unexpected end of stream.", ex);
}
}
public MultipartMessage ReadHeader(string contentType)
{
HeaderField contentTypeField = ParseHeaderField(
HttpConstants.ContentType,
contentType);
message = new MultipartMessage(contentTypeField);
if (!message.IsMultipart)
throw ParserException("This is not a MIME multipart message. The content type '{0}' is not supported", contentType);
buffer = new BinaryBufferWithPatternWatching(ConstructDelimiterBuffer(message));
SkipToFirstDelimiter();
return message;
}
public MultipartMessage ReadHeader(string contentType)
{
HeaderField contentTypeField = ParseHeaderField(
HttpConstants.ContentType,
contentType);
message = new MultipartMessage(contentTypeField);
if (!message.IsMultipart)
{
throw ParserException("This is not a MIME multipart message. The content type '{0}' is not supported", contentType);
}
buffer = new BinaryBufferWithPatternWatching(ConstructDelimiterBuffer(message));
SkipToFirstDelimiter();
return(message);
}
private static void SkipToFirstDelimiter(Stream inputStream, BinaryBufferWithPatternWatching buffer)
{
buffer.Start();
while (true)
{
int value = inputStream.ReadByte();
if (value == -1)
{
throw ParserException("Unexpected end of stream (2).");
}
byte byteValue = (byte)value;
if (buffer.WriteByte(byteValue))
{
return;
}
}
}
private static MultipartMessagePart ReadPart(
MultipartMessage message,
Stream inputStream,
BinaryBufferWithPatternWatching buffer)
{
buffer.Start();
while (true)
{
int value = inputStream.ReadByte();
if (value == -1)
{
throw ParserException("Unexpected end of stream (3).");
}
byte byteValue = (byte)value;
bool patternMatched = buffer.WriteByte(byteValue);
if (!patternMatched)
{
continue;
}
MultipartMessagePart part = ParsePart(
message,
buffer.ToArray(),
buffer.Pattern.Length);
if (log.IsDebugEnabled)
{
log.DebugFormat("Found part '{0}'", message.BaseEncoding.GetString(part.Data));
}
return(part);
}
}
private static void SkipToFirstDelimiter(Stream inputStream, BinaryBufferWithPatternWatching buffer)
{
buffer.Start();
while (true)
{
int value = inputStream.ReadByte();
if (value == -1)
throw ParserException("Unexpected end of stream (2).");
byte byteValue = (byte)value;
if (buffer.WriteByte(byteValue))
return;
}
}
private static MultipartMessagePart ReadPart(
MultipartMessage message,
Stream inputStream,
BinaryBufferWithPatternWatching buffer)
{
buffer.Start();
while (true)
{
int value = inputStream.ReadByte();
if (value == -1)
throw ParserException("Unexpected end of stream (3).");
byte byteValue = (byte)value;
bool patternMatched = buffer.WriteByte(byteValue);
if (!patternMatched)
continue;
MultipartMessagePart part = ParsePart(
message,
buffer.ToArray(),
buffer.Pattern.Length);
if (log.IsDebugEnabled)
log.DebugFormat("Found part '{0}'", message.BaseEncoding.GetString(part.Data));
return part;
}
}
public MultipartMessage ParseMessage(string contentType, Stream inputStream)
{
if (log.IsDebugEnabled)
{
log.DebugFormat("Message content-type: '{0}'", contentType);
}
HeaderField contentTypeField = ParseHeaderField(
HttpConstants.ContentType,
contentType);
MultipartMessage message = new MultipartMessage(contentTypeField);
if (!message.IsMultipart)
{
throw ParserException("This is not a MIME multipart message. The content type '{0}' is not supported", contentType);
}
if (log.IsDebugEnabled)
{
log.DebugFormat("Multipart message boundary: '{0}'", message.Boundary);
}
BinaryBufferWithPatternWatching buffer = new BinaryBufferWithPatternWatching(
ConstructDelimiterBuffer(message));
try
{
SkipToFirstDelimiter(inputStream, buffer);
while (true)
{
int markerByte1 = inputStream.ReadByte();
int markerByte2 = inputStream.ReadByte();
if (markerByte1 == -1 || markerByte2 == -1)
{
throw ParserException("Unexpected end of stream (1).");
}
if ((byte)markerByte1 == '-' && (byte)markerByte2 == '-')
{
break;
}
if ((byte)markerByte1 == '\r' && (byte)markerByte2 == '\n')
{
MultipartMessagePart part = ReadPart(message, inputStream, buffer);
message.AddPart(part);
}
else
{
throw ParserException("Invalid multipart message: unexpected message part markers.");
}
}
return(message);
}
catch (EndOfStreamException ex)
{
throw new MultipartMessageParserException("Unexpected end of stream.", ex);
}
}