EnumerateMimeParts recursion / Streamable attachments about mimekit

[mwpowellhtx]

I don't know whether you can leverage existing classes and avoid having to reinvent the wheel: see also System.Net.Mail.Attachment, System.Net.Mail.AttachmentCollection, and so on.

[jstedfast]

Yes, you can make any recursive solution into an iterative one by creating your own stack, but what's the point of that?

I added the Attachments convenience property because it was clear you didn't understand how MIME actually works. MIME is not a list, it's a tree. The Attachments and BodyParts properties are there for people who don't want to traverse the tree themselves.

Second, I am concerned that EnumerateMimeParts occurs multiple times depending on the property(ies) that are called. It doesn't need to be calculated any more than once, regardless the caller requesting the parts. The parts aren't changing between calls, after all... It's only "two" properties, BodyParts and Attachments, but you get the idea.

That comment doesn't even make sense. They are simply convenience APIs to iterate over a tree of parts and treat them like an iterative list for people who are too lazy to do things properly.

Then... What's the point of Attachments if they aren't streamable? The parts still need to be assembled and presented through a memory stream?

Huh???

Why do you think they need to be assembles or presented through a memory stream??

That doesn't even make sense.

A MimeKit.MimePart object is a leaf-node part, which are the only parts that can contain content. You want to "stream" the content? That's great. I have 2 APIs for that:

MimePart.ContentObject.Open() or MimePart.ContentObject.DecodeTo(Stream)

There's also MimePart.ContentObject.WriteTo(Stream) if you'd prefer to write the encoded data.

What is it that you want to stream that you think you can't stream? MimeKit is designed around the idea of streaming.

[mwpowellhtx]

It's working like a champ. Decodes to stream, can work with the attachments, etc. Thank ye!

[jstedfast]

Glad it's working out for you!

[jstedfast]

MimeKit now has a MimeIterator for walking the tree w/o recursion.