Support RFC2047 encoding on Header's to_string - Githubissues

niax / rust-email

Implementation of MIME Messages for Rust

MIT License

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Support RFC2047 encoding on Header's to_string #3

Open niax opened 9 years ago

niax commented 9 years ago

Headers should (as required) use RFC2047 encoding when being coerced into a string for inclusion in a MimeMessage.

It should:

[ ] Support determination of charset encoding as determined by the user, but default to UTF-8
[ ] Decide automagically if it should use Q encoding or BASE64, based on whichever is shorter
[ ] Play nicely with header folding (Perhaps ToFoldedHeader should have a requirement to have handled encoding yourself)
[ ] Not need to do any special manipulation to strings that are already 7-bit ASCII.

Valodim commented 4 years ago

I'm two layers downstream and needed this, so I implemented an RFC 2047 encoder. It doesn't tick all of the boxes from above yet, but I believe it does q-encoding correctly, which should cover the hardest part: https://crates.io/crates/rfc2047