private void _parseMessage(Stream stream)
{
MimeReader reader = new MimeReader(stream);
using (var bodyWriter = new StringWriter()) {
SetFields(reader.ReadFields());
if (MimeVersion != null)
{
string StrContentType = Fields.Value("Content-Type");
if (StrContentType == null)
{
throw new MimeException("Invalid mime-message, missing 'Content-Type'.");
}
MimeContentType ContentType = MimeContentType.Parse(StrContentType, true);
if (ContentType.isMultipart)
{
ParseMultiPart(ContentType, reader, bodyWriter);
}
else
{
SetContent(reader.ReadData(ContentTransferEncoding, null));
}
}
else
{
while (reader.ReadLine(false))
{
reader.WriteLineTo(bodyWriter);
}
}
_body = bodyWriter.ToString();
}
Fields.SetCollectionReadOnly();
}
protected void ParseMultiPart(MimeContentType contentType, MimeReader reader, StringWriter bodyWriter)
{
if (contentType is null)
{
throw new ArgumentNullException(nameof(contentType));
}
if (reader is null)
{
throw new ArgumentNullException(nameof(reader));
}
_parts = new MimeParts();
string Boundary = contentType.Boundary;
if (Boundary == null)
{
throw new MimeException("Invalid multipart-mime-message, missing 'Boundary'.");
}
while (true)
{
if (!reader.ReadLine(false))
{
throw new MimeException("Invalid multipart-mime-message, missing begin-boundary.");
}
if (reader.TestBoundary(Boundary) == 1)
{
break;
}
if (bodyWriter != null)
{
reader.WriteLineTo(bodyWriter);
}
}
while (reader.TestBoundary(Boundary) != -1)
{
if (reader.TestBoundary(Boundary) == 1)
{
MimeFields PartFields = reader.ReadFields();
MimeField FldContentTransferEncoding = PartFields["Content-Transfer-Encoding"];
byte[] PartContent = reader.ReadData(MimePart.StringToMimeEncoding(FldContentTransferEncoding?.Value), Boundary);
MimeField FldPartContentType = PartFields["Content-Type"];
MimeContentType PartContentType = FldPartContentType?.ValueContentType;
if (PartContentType != null && PartContentType.isMultipart)
{
_parts.Add(new MimeMultiPart(PartContentType, PartFields, PartContent));
}
else
{
_parts.Add(new MimePart(PartFields, PartContent));
}
PartFields.SetCollectionReadOnly();
}
else
{
if (!reader.isLineEmpty)
{
throw new MimeException("Invalid multipart-mime-message, garbage in between parts.");
}
if (!reader.ReadLine(false))
{
throw new MimeException("Invalid multipart-mime-message, missing end-boundary.");
}
}
}
_parts.SetCollectionReadOnly();
}