use imap_codec::imap_types::fetch::{MacroOrMessageDataItemNames, MessageDataItemName}; /// Internal decisions based on fetched attributes /// passed by the client pub struct AttributesProxy { pub attrs: Vec>, } impl AttributesProxy { pub fn new(attrs: &MacroOrMessageDataItemNames<'static>, is_uid_fetch: bool) -> Self { // Expand macros let mut fetch_attrs = match attrs { MacroOrMessageDataItemNames::Macro(m) => { use imap_codec::imap_types::fetch::Macro; use MessageDataItemName::*; match m { Macro::All => vec![Flags, InternalDate, Rfc822Size, Envelope], Macro::Fast => vec![Flags, InternalDate, Rfc822Size], Macro::Full => vec![Flags, InternalDate, Rfc822Size, Envelope, Body], _ => { tracing::error!("unimplemented macro"); vec![] } } } MacroOrMessageDataItemNames::MessageDataItemNames(a) => a.clone(), }; // Handle uids if is_uid_fetch && !fetch_attrs.contains(&MessageDataItemName::Uid) { fetch_attrs.push(MessageDataItemName::Uid); } Self { attrs: fetch_attrs } } pub fn need_body(&self) -> bool { self.attrs.iter().any(|x| { matches!( x, MessageDataItemName::Body | MessageDataItemName::BodyExt { .. } | MessageDataItemName::Rfc822 | MessageDataItemName::Rfc822Text | MessageDataItemName::BodyStructure ) }) } }