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author | Quentin Dufour <quentin@deuxfleurs.fr> | 2024-03-08 08:17:03 +0100 |
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committer | Quentin Dufour <quentin@deuxfleurs.fr> | 2024-03-08 08:17:03 +0100 |
commit | 1a43ce5ac7033c148f64a033f2b1d335e95e11d5 (patch) | |
tree | 60b234604170fe207248458a9c4cdd3f4b7c36f2 /src/imap/flow.rs | |
parent | bb9cb386b65834c44cae86bd100f800883022062 (diff) | |
download | aerogramme-1a43ce5ac7033c148f64a033f2b1d335e95e11d5.tar.gz aerogramme-1a43ce5ac7033c148f64a033f2b1d335e95e11d5.zip |
WIP refactor
Diffstat (limited to 'src/imap/flow.rs')
-rw-r--r-- | src/imap/flow.rs | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/src/imap/flow.rs b/src/imap/flow.rs deleted file mode 100644 index 86eb12e..0000000 --- a/src/imap/flow.rs +++ /dev/null @@ -1,114 +0,0 @@ -use std::error::Error as StdError; -use std::fmt; -use std::sync::Arc; - -use imap_codec::imap_types::core::Tag; -use tokio::sync::Notify; - -use crate::imap::mailbox_view::MailboxView; -use crate::user::User; - -#[derive(Debug)] -pub enum Error { - ForbiddenTransition, -} -impl fmt::Display for Error { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "Forbidden Transition") - } -} -impl StdError for Error {} - -pub enum State { - NotAuthenticated, - Authenticated(Arc<User>), - Selected(Arc<User>, MailboxView, MailboxPerm), - Idle( - Arc<User>, - MailboxView, - MailboxPerm, - Tag<'static>, - Arc<Notify>, - ), - Logout, -} -impl State { - pub fn notify(&self) -> Option<Arc<Notify>> { - match self { - Self::Idle(_, _, _, _, anotif) => Some(anotif.clone()), - _ => None, - } - } -} -impl fmt::Display for State { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - use State::*; - match self { - NotAuthenticated => write!(f, "NotAuthenticated"), - Authenticated(..) => write!(f, "Authenticated"), - Selected(..) => write!(f, "Selected"), - Idle(..) => write!(f, "Idle"), - Logout => write!(f, "Logout"), - } - } -} - -#[derive(Clone)] -pub enum MailboxPerm { - ReadOnly, - ReadWrite, -} - -pub enum Transition { - None, - Authenticate(Arc<User>), - Select(MailboxView, MailboxPerm), - Idle(Tag<'static>, Notify), - UnIdle, - Unselect, - Logout, -} -impl fmt::Display for Transition { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - use Transition::*; - match self { - None => write!(f, "None"), - Authenticate(..) => write!(f, "Authenticated"), - Select(..) => write!(f, "Selected"), - Idle(..) => write!(f, "Idle"), - UnIdle => write!(f, "UnIdle"), - Unselect => write!(f, "Unselect"), - Logout => write!(f, "Logout"), - } - } -} - -// See RFC3501 section 3. -// https://datatracker.ietf.org/doc/html/rfc3501#page-13 -impl State { - pub fn apply(&mut self, tr: Transition) -> Result<(), Error> { - tracing::debug!(state=%self, transition=%tr, "try change state"); - - let new_state = match (std::mem::replace(self, State::Logout), tr) { - (s, Transition::None) => s, - (State::NotAuthenticated, Transition::Authenticate(u)) => State::Authenticated(u), - (State::Authenticated(u) | State::Selected(u, _, _), Transition::Select(m, p)) => { - State::Selected(u, m, p) - } - (State::Selected(u, _, _), Transition::Unselect) => State::Authenticated(u.clone()), - (State::Selected(u, m, p), Transition::Idle(t, s)) => { - State::Idle(u, m, p, t, Arc::new(s)) - } - (State::Idle(u, m, p, _, _), Transition::UnIdle) => State::Selected(u, m, p), - (_, Transition::Logout) => State::Logout, - (s, t) => { - tracing::error!(state=%s, transition=%t, "forbidden transition"); - return Err(Error::ForbiddenTransition); - } - }; - *self = new_state; - tracing::debug!(state=%self, "transition succeeded"); - - Ok(()) - } -} |