public static uint MailSize(this Mime mime)
{
uint mailSize = 0;
if (!String.IsNullOrWhiteSpace(mime.BodyText))
{
mailSize += (uint)mime.BodyText.Length;
}
else if (!String.IsNullOrWhiteSpace(mime.BodyHtml))
{
mailSize += (uint)mime.BodyHtml.Length;
}
mailSize += (uint)mime.GetValidAttachements().Sum(a => a.Data.Length);
return(mailSize);
}
public static string GetSHA256Hash(this Mime mime)
{
using (var stream = new MultiBufferStream()) {
if (!String.IsNullOrWhiteSpace(mime.MainEntity.Subject))
{
stream.AddBuffer(Encoding.ASCII.GetBytes(mime.MainEntity.Subject));
}
if (!String.IsNullOrWhiteSpace(mime.BodyText))
{
stream.AddBuffer(Encoding.ASCII.GetBytes(mime.BodyText));
}
if (String.IsNullOrWhiteSpace(mime.BodyText) && !String.IsNullOrWhiteSpace(mime.BodyHtml))
{
var convertedHtml = mime.HtmlToText();
if (!String.IsNullOrWhiteSpace(convertedHtml))
{
stream.AddBuffer(Encoding.ASCII.GetBytes(convertedHtml));
}
}
var attachments = mime.GetValidAttachements().OrderBy(m => m.GetFilename());
foreach (var attachment in attachments)
{
stream.AddBuffer(attachment.Data);
}
if (stream.Length > 0)
{
using (var sha256Hash = new SHA256Managed()) {
var hash = sha256Hash.ComputeHash(stream);
return(Convert.ToBase64String(hash));
}
}
return(String.Empty);
}
}