aerogramme/src/imap/command/examined.rs

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use std::sync::Arc;
use anyhow::Result;
use boitalettres::proto::Request;
use boitalettres::proto::Response;
use imap_codec::types::command::{CommandBody, SearchKey};
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use imap_codec::types::core::{Charset, NonZeroBytes};
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use imap_codec::types::datetime::MyDateTime;
use imap_codec::types::fetch_attributes::MacroOrFetchAttributes;
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use imap_codec::types::flag::Flag;
use imap_codec::types::mailbox::Mailbox as MailboxCodec;
use imap_codec::types::response::Code;
use imap_codec::types::sequence::SequenceSet;
use crate::imap::command::authenticated;
use crate::imap::flow;
use crate::imap::mailbox_view::MailboxView;
use crate::mail::user::User;
pub struct ExaminedContext<'a> {
pub req: &'a Request,
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pub user: &'a Arc<User>,
pub mailbox: &'a mut MailboxView,
}
pub async fn dispatch<'a>(ctx: ExaminedContext<'a>) -> Result<(Response, flow::Transition)> {
match &ctx.req.command.body {
// CLOSE in examined state is not the same as in selected state
// (in selected state it also does an EXPUNGE, here it doesn't)
CommandBody::Close => ctx.close().await,
CommandBody::Fetch {
sequence_set,
attributes,
uid,
} => ctx.fetch(sequence_set, attributes, uid).await,
CommandBody::Search {
charset,
criteria,
uid,
} => ctx.search(charset, criteria, uid).await,
CommandBody::Noop => ctx.noop().await,
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CommandBody::Append {
mailbox,
flags,
date,
message,
} => ctx.append(mailbox, flags, date, message).await,
_ => {
let ctx = authenticated::AuthenticatedContext {
req: ctx.req,
user: ctx.user,
};
authenticated::dispatch(ctx).await
}
}
}
// --- PRIVATE ---
impl<'a> ExaminedContext<'a> {
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async fn close(self) -> Result<(Response, flow::Transition)> {
Ok((Response::ok("CLOSE completed")?, flow::Transition::Unselect))
}
pub async fn fetch(
self,
sequence_set: &SequenceSet,
attributes: &MacroOrFetchAttributes,
uid: &bool,
) -> Result<(Response, flow::Transition)> {
match self.mailbox.fetch(sequence_set, attributes, uid).await {
Ok(resp) => Ok((
Response::ok("FETCH completed")?.with_body(resp),
flow::Transition::None,
)),
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)),
}
}
pub async fn search(
self,
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_charset: &Option<Charset>,
_criteria: &SearchKey,
_uid: &bool,
) -> Result<(Response, flow::Transition)> {
Ok((Response::bad("Not implemented")?, flow::Transition::None))
}
pub async fn noop(self) -> Result<(Response, flow::Transition)> {
let updates = self.mailbox.sync_update().await?;
Ok((
Response::ok("NOOP completed.")?.with_body(updates),
flow::Transition::None,
))
}
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async fn append(
self,
mailbox: &MailboxCodec,
flags: &[Flag],
date: &Option<MyDateTime>,
message: &NonZeroBytes,
) -> Result<(Response, flow::Transition)> {
let ctx2 = authenticated::AuthenticatedContext {
req: self.req,
user: self.user,
};
match ctx2.append_internal(mailbox, flags, date, message).await {
Ok((mb, uidvalidity, uid)) => {
let resp = Response::ok("APPEND completed")?.with_extra_code(Code::Other(
"APPENDUID".try_into().unwrap(),
Some(format!("{} {}", uidvalidity, uid)),
));
if Arc::ptr_eq(&mb, &self.mailbox.mailbox) {
let data = self.mailbox.update().await?;
Ok((resp.with_body(data), flow::Transition::None))
} else {
Ok((resp, flow::Transition::None))
}
}
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)),
}
}
}