static byte[] EncodeContentDisposition(ParserOptions options, FormatOptions format, Encoding charset, string field, string value)
{
var disposition = ContentDisposition.Parse(options, value);
var encoded = disposition.Encode(format, charset);
return(Encoding.UTF8.GetBytes(encoded));
}
private static MimePart GetMimePart(AttachmentBase item)
{
var mimeType = item.ContentType.ToString();
var contentType = ContentType.Parse(mimeType);
var attachment = item as Attachment;
MimePart part;
if (contentType.MediaType.Equals("text", StringComparison.OrdinalIgnoreCase))
{
// Original: part = new TextPart(contentType);
// Due to constructor of TextPart(ContentType contentType) being internal,
// mimic the instantiation by using MimePart(ContentType contentType)
part = new MimePart(contentType);
}
else
{
part = new MimePart(contentType);
}
if (attachment != null)
{
var disposition = attachment.ContentDisposition.ToString();
part.ContentDisposition = ContentDisposition.Parse(disposition);
}
switch (item.TransferEncoding)
{
case TransferEncoding.QuotedPrintable:
part.ContentTransferEncoding = ContentEncoding.QuotedPrintable;
break;
case TransferEncoding.Base64:
part.ContentTransferEncoding = ContentEncoding.Base64;
break;
case TransferEncoding.SevenBit:
part.ContentTransferEncoding = ContentEncoding.SevenBit;
break;
case TransferEncoding.EightBit:
part.ContentTransferEncoding = ContentEncoding.EightBit;
break;
}
if (item.ContentId != null)
{
part.ContentId = item.ContentId;
}
var stream = new MemoryBlockStream();
item.ContentStream.CopyTo(stream);
stream.Position = 0;
part.ContentObject = new ContentObject(stream);
return(part);
}
private static MimePart GetMimePart(AttachmentBase item)
{
var mimeType = item.ContentType.ToString();
var contentType = ContentType.Parse(mimeType);
var attachment = item as Attachment;
var part = new MimePart(contentType);
//
if (attachment != null)
{
var disposition = attachment.ContentDisposition.ToString();
part.ContentDisposition = ContentDisposition.Parse(disposition);
}
// Adjust the transfer encoding
switch (item.TransferEncoding)
{
case TransferEncoding.QuotedPrintable:
part.ContentTransferEncoding = ContentEncoding.QuotedPrintable;
break;
case TransferEncoding.Base64:
part.ContentTransferEncoding = ContentEncoding.Base64;
break;
case TransferEncoding.SevenBit:
part.ContentTransferEncoding = ContentEncoding.SevenBit;
break;
case TransferEncoding.EightBit:
part.ContentTransferEncoding = ContentEncoding.EightBit;
break;
case TransferEncoding.Unknown:
break;
default:
throw new ArgumentOutOfRangeException();
}
// Adjust the attachment content identifier
if (item.ContentId != null)
{
part.ContentId = item.ContentId;
}
// Copy the content of the attachment
var stream = new MemoryBlockStream();
item.ContentStream.CopyTo(stream);
stream.Position = 0;
part.Content = new MimeContent(stream);
// Done
return(part);
}