static void LoadContent(MimePart attachment, Stream stream)
{
var content = new MemoryBlockStream();
if (attachment.ContentType.IsMimeType("text", "*"))
{
var filter = new BestEncodingFilter();
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
}
else
{
attachment.ContentTransferEncoding = ContentEncoding.Base64;
stream.CopyTo(content, 4096);
}
content.Position = 0;
attachment.Content = new MimeContent(content);
}
void LoadContent(MimePart attachment, string fileName)
{
var content = new MemoryBlockStream();
var filter = new BestEncodingFilter();
using (var stream = File.OpenRead(fileName)) {
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
}
content.Position = 0;
if (linked)
{
attachment.ContentLocation = new Uri(Path.GetFileName(fileName), UriKind.Relative);
}
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content, ContentEncoding.Default);
}
private bool StoreEntities(OutgoingEmail email, List <string> attachmentList)
{
foreach (string iter in attachmentList)
{
FileStream stream = File.OpenRead(iter);
if (!stream.CanRead)
{
return(false);
}
string mimeType = MimeTypes.GetMimeType(iter);
ContentType fileType = ContentType.Parse(mimeType);
MimePart attachment;
if (fileType.IsMimeType("text", "*"))
{
attachment = new TextPart(fileType.MediaSubtype);
foreach (var param in fileType.Parameters)
{
attachment.ContentType.Parameters.Add(param);
}
}
else
{
attachment = new MimePart(fileType);
}
attachment.FileName = Path.GetFileName(iter);
attachment.IsAttachment = true;
MemoryBlockStream memoryBlockStream = new MemoryBlockStream();
BestEncodingFilter encodingFilter = new BestEncodingFilter();
byte[] fileBuffer = new byte[4096];
int index, length, bytesRead;
while ((bytesRead = stream.Read(fileBuffer, 0, fileBuffer.Length)) > 0)
{
encodingFilter.Filter(fileBuffer, 0, bytesRead, out index, out length);
memoryBlockStream.Write(fileBuffer, 0, bytesRead);
}
encodingFilter.Flush(fileBuffer, 0, 0, out index, out length);
memoryBlockStream.Position = 0;
attachment.ContentTransferEncoding = encodingFilter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(memoryBlockStream);
if (attachment != null)
{
email.AttachmentList.Add(attachment);
}
}
return(true);
}
static void LoadContent(MimePart attachment, Stream stream)
{
var content = new MemoryBlockStream();
var filter = new BestEncodingFilter();
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
content.Position = 0;
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content);
}
static async Task LoadContentAsync(MimePart attachment, Stream stream, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var content = new MemoryBlockStream();
if (attachment.ContentType.IsMimeType("text", "*"))
{
var buf = ArrayPool <byte> .Shared.Rent(BufferLength);
var filter = new BestEncodingFilter();
int index, length;
int nread;
try {
while ((nread = await stream.ReadAsync(buf, 0, BufferLength, cancellationToken).ConfigureAwait(false)) > 0)
{
cancellationToken.ThrowIfCancellationRequested();
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
} finally {
ArrayPool <byte> .Shared.Return(buf);
}
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
}
else
{
attachment.ContentTransferEncoding = ContentEncoding.Base64;
await stream.CopyToAsync(content, 4096, cancellationToken).ConfigureAwait(false);
}
content.Position = 0;
attachment.Content = new MimeContent(content);
}
