private MessageEntitySummary HandleMimeEntity(MimeEntity entity)
{
int index = 0;
return(MimeEntityVisitor.Visit <MessageEntitySummary>(entity, null, (e, p) =>
{
string cid = e.ContentId ?? index.ToString();
MessageEntitySummary result = new MessageEntitySummary()
{
MessageId = Id,
ContentId = cid,
Name = e.ContentId + " - " + e.ContentType.MimeType,
Headers = e.Headers.Select(h => new Header {
Name = h.Field, Value = h.Value
}).ToList(),
ChildParts = new List <MessageEntitySummary>(),
Attachments = new List <AttachmentSummary>(),
Size = e.ToString().Length
};
if (p != null)
{
p.ChildParts.Add(result);
if (e.IsAttachment)
{
p.Attachments.Add(new AttachmentSummary()
{
ContentId = result.ContentId,
FileName = string.IsNullOrEmpty(e.ContentType?.Name)
? e.ContentDisposition?.FileName
: e.ContentType.Name,
Url = $"/api/messages/{Id}/part/{result.ContentId}/content"
});
}
}
index++;
return result;
}));
}
private static MimeEntity GetPart(DbModel.Message message, string cid)
{
MimeEntity result = null;
using (MemoryStream stream = new MemoryStream(message.Data))
{
MimeMessage mime = MimeMessage.Load(stream);
int index = 0;
MimeEntityVisitor.Visit <DBNull>(mime.Body, null, (e, p) =>
{
if (((e as MimePart)?.ContentId ?? (index++.ToString())) == cid)
{
result = e;
}
return(DBNull.Value);
});
}
return(result);
}
