Attachment.cs

using System;

namespace AE.Net.Mail {
  public class Attachment : ObjectWHeaders {
    public virtual string Filename {
      get { return Headers["Content-Disposition"]["filename"].NotEmpty(Headers["Content-Disposition"]["name"]); }
    }

    private string _ContentDisposition;
    private string ContentDisposition {
      get { return _ContentDisposition ?? (_ContentDisposition = Headers["Content-Disposition"].Value.ToLower()); }
    }

    public virtual bool OnServer { get; internal set; }

    internal bool IsAttachment {
      get {
        return ContentDisposition == "attachment" || ContentDisposition == "inline";
      }
    }

    public virtual void Save(string filename) {
      using (var file = new System.IO.FileStream(filename, System.IO.FileMode.Create))
        Save(file);
    }

    public virtual void Save(System.IO.Stream stream) {
      var data = GetData();
      stream.Write(data, 0, data.Length);
    }

    public virtual byte[] GetData() {
      byte[] data;
      if (ContentTransferEncoding.Is("base64") && Utilities.IsValidBase64String(Body)) {
        try {
          data = Convert.FromBase64String(Body);
        } catch (Exception) {
          data = Encoding.GetBytes(Body);
        }
      } else {
        data = Encoding.GetBytes(Body);
      }
      return data;
    }

  }
}