private static void DumpAttachment(string dir, AttachmentBase attachment)
{
string name = null;
if (!string.IsNullOrEmpty(attachment.ContentType.Name))
{
name = attachment.ContentType.Name;
}
else
{
name = attachment is AlternateView ? "alternate-view" : "attachment";
string ext = MimeUtility.GetFileExtensionFromMediaType(attachment.ContentType.MediaType);
if (ext == "eml")
{
name = "attached-message";
}
name = string.Format(name + "." + ext);
}
int i = 1;
string shortname = null;
while (File.Exists(dir + Path.DirectorySeparatorChar + name))
{
FileInfo fi = new FileInfo(name);
if (null == shortname)
{
shortname = fi.Name.Substring(0, fi.Name.Length - fi.Extension.Length);
}
name = string.Format("{0} ({1}){2}", shortname, i, fi.Extension);
i++;
}
using (Stream stream = File.Create(dir + Path.DirectorySeparatorChar + name))
{
byte[] buffer = new byte[32768];
while (true)
{
int read = attachment.ContentStream.Read(buffer, 0, buffer.Length);
if (read <= 0)
{
break;
}
stream.Write(buffer, 0, read);
}
}
}