ContentDisposition.Filename causing exception with unicode characters

Aspose.Email Product Family
1

Hi,

if i use a filename in ContentDisposition that contains unicode characters the Save (or more exactly the ContentDisposition.ToString()) method throws.

Aspose.Network Version 4.8.0.8

Sample code:

using (MailMessage message = new MailMessage())
{
Attachment attachment = new Attachment(new MemoryStream(), “€.pdf”);
attachment.ContentDisposition.FileName = “€.pdf”;
message.AddAttachment(attachment);
message.Save(new MemoryStream());
}

Result:

System.FormatException: An invalid character was found in the mail header.
at Aspose.Network.xe8b0369f54f4b3bc.x13248c0a655a378d(String x4a3f0a05c02f235f, StringBuilder xd07ce4b74c5774a7)
at Aspose.Network.Mime.ContentDisposition.ToString()
at Aspose.Network.Mime.ContentDisposition.PersistIfNeeded(HeaderCollection headers, Boolean forcePersist)
at Aspose.Network.Mime.xae9fad9e3ec8cb69.get_Headers()
at Aspose.Network.Mime.x83903e31fd6d37d2.Send(x7fdc1bfc45368624 writer)
at Aspose.Network.Mime.x99ba4fc54cd04c54.Send(x7fdc1bfc45368624 writer)
at Aspose.Network.Mime.x99ba4fc54cd04c54.Send(x7fdc1bfc45368624 writer)
at Aspose.Network.Mail.xd397bb1e465ce45e.x2de48dbd5ff873e9(x7fdc1bfc45368624 xbdfb620b7167944b, Boolean xf2345d49f064fe05)
at Aspose.Network.Mail.MailMessage.Save(Stream stream)

please provide a fix as soon as possible.

Thank you
with regards
Robert

2

Hi,

We are working on this issue. I will get back to you shortly.

Thanks,

3

By the way, if you want to set the name of the attachment, you don't need to set the ContentDisposition.FileName. You can create an Attachment instance with its name.

Thanks,

4

Hi, i know i can set the attachment name, but that is not the same. The Attachment name becomes part of the Content-Type header. The Filename property of the ContentDisposition object becomes a part of the Content-Disposition header.

cheers
Robert

5

Hi,

Please check the attached hotfix.

Thanks,

6

This solved the problem.
Thank you
Robert