use std::sync::Arc; use anyhow::Result; use boitalettres::proto::Request; use boitalettres::proto::Response; use imap_codec::types::command::CommandBody; use imap_codec::types::flag::{Flag, StoreResponse, StoreType}; use imap_codec::types::mailbox::Mailbox as MailboxCodec; use imap_codec::types::response::Code; use imap_codec::types::sequence::SequenceSet; use crate::imap::command::examined; use crate::imap::flow; use crate::imap::mailbox_view::MailboxView; use crate::mail::user::User; pub struct SelectedContext<'a> { pub req: &'a Request, pub user: &'a Arc, pub mailbox: &'a mut MailboxView, } pub async fn dispatch<'a>(ctx: SelectedContext<'a>) -> Result<(Response, flow::Transition)> { match &ctx.req.command.body { // Only write commands here, read commands are handled in // `examined.rs` CommandBody::Close => ctx.close().await, CommandBody::Expunge => ctx.expunge().await, CommandBody::Store { sequence_set, kind, response, flags, uid, } => ctx.store(sequence_set, kind, response, flags, uid).await, CommandBody::Copy { sequence_set, mailbox, uid, } => ctx.copy(sequence_set, mailbox, uid).await, _ => { let ctx = examined::ExaminedContext { req: ctx.req, user: ctx.user, mailbox: ctx.mailbox, }; examined::dispatch(ctx).await } } } // --- PRIVATE --- impl<'a> SelectedContext<'a> { async fn close(self) -> Result<(Response, flow::Transition)> { // We expunge messages, // but we don't send the untagged EXPUNGE responses self.expunge().await?; Ok((Response::ok("CLOSE completed")?, flow::Transition::Unselect)) } async fn expunge(self) -> Result<(Response, flow::Transition)> { let data = self.mailbox.expunge().await?; Ok(( Response::ok("EXPUNGE completed")?.with_body(data), flow::Transition::None, )) } async fn store( self, sequence_set: &SequenceSet, kind: &StoreType, response: &StoreResponse, flags: &[Flag], uid: &bool, ) -> Result<(Response, flow::Transition)> { let data = self .mailbox .store(sequence_set, kind, response, flags, uid) .await?; Ok(( Response::ok("STORE completed")?.with_body(data), flow::Transition::None, )) } async fn copy( self, sequence_set: &SequenceSet, mailbox: &MailboxCodec, uid: &bool, ) -> Result<(Response, flow::Transition)> { let name = String::try_from(mailbox.clone())?; let mb_opt = self.user.open_mailbox(&name).await?; let mb = match mb_opt { Some(mb) => mb, None => { return Ok(( Response::no("Destination mailbox does not exist")? .with_extra_code(Code::TryCreate), flow::Transition::None, )) } }; let (uidval, uid_map) = self.mailbox.copy(sequence_set, mb, uid).await?; let copyuid_str = format!( "{} {} {}", uidval, uid_map .iter() .map(|(sid, _)| format!("{}", sid)) .collect::>() .join(","), uid_map .iter() .map(|(_, tuid)| format!("{}", tuid)) .collect::>() .join(",") ); Ok(( Response::ok("COPY completed")?.with_extra_code(Code::Other( "COPYUID".try_into().unwrap(), Some(copyuid_str), )), flow::Transition::None, )) } }