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use anyhow::{Error, Result};
use boitalettres::errors::Error as BalError;
use boitalettres::proto::{Request, Response};
use imap_codec::types::core::{AString, Tag};
use imap_codec::types::fetch_attributes::MacroOrFetchAttributes;
use imap_codec::types::mailbox::{ListMailbox, Mailbox as MailboxCodec};
use imap_codec::types::response::{Capability, Code, Data, Response as ImapRes, Status};
use imap_codec::types::sequence::SequenceSet;
use crate::mailbox::Mailbox;
use crate::session;
pub struct Command<'a> {
tag: Tag,
session: &'a mut session::Instance,
}
impl<'a> Command<'a> {
pub fn new(tag: Tag, session: &'a mut session::Instance) -> Self {
Self { tag, session }
}
pub async fn capability(&self) -> Result<Response> {
let capabilities = vec![Capability::Imap4Rev1, Capability::Idle];
let res = vec![
ImapRes::Data(Data::Capability(capabilities)),
ImapRes::Status(
Status::ok(Some(self.tag.clone()), None, "Server capabilities")
.map_err(Error::msg)?,
),
];
Ok(res)
}
pub async fn login(&mut self, username: AString, password: AString) -> Result<Response> {
let (u, p) = (String::try_from(username)?, String::try_from(password)?);
tracing::info!(user = %u, "command.login");
let creds = match self.session.login_provider.login(&u, &p).await {
Err(e) => {
tracing::debug!(error=%e, "authentication failed");
return Ok(vec![ImapRes::Status(
Status::no(Some(self.tag.clone()), None, "Authentication failed")
.map_err(Error::msg)?,
)]);
}
Ok(c) => c,
};
self.session.user = Some(session::User {
creds,
name: u.clone(),
});
tracing::info!(username=%u, "connected");
Ok(vec![
//@FIXME we could send a capability status here too
ImapRes::Status(
Status::ok(Some(self.tag.clone()), None, "completed").map_err(Error::msg)?,
),
])
}
pub async fn lsub(
&self,
reference: MailboxCodec,
mailbox_wildcard: ListMailbox,
) -> Result<Response> {
Ok(vec![ImapRes::Status(
Status::bad(Some(self.tag.clone()), None, "Not implemented").map_err(Error::msg)?,
)])
}
pub async fn list(
&self,
reference: MailboxCodec,
mailbox_wildcard: ListMailbox,
) -> Result<Response> {
Ok(vec![ImapRes::Status(
Status::bad(Some(self.tag.clone()), None, "Not implemented").map_err(Error::msg)?,
)])
}
/*
* TRACE BEGIN ---
Example: C: A142 SELECT INBOX
S: * 172 EXISTS
S: * 1 RECENT
S: * OK [UNSEEN 12] Message 12 is first unseen
S: * OK [UIDVALIDITY 3857529045] UIDs valid
S: * OK [UIDNEXT 4392] Predicted next UID
S: * FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
S: * OK [PERMANENTFLAGS (\Deleted \Seen \*)] Limited
S: A142 OK [READ-WRITE] SELECT completed
* TRACE END ---
*/
pub async fn select(&mut self, mailbox: MailboxCodec) -> Result<Response> {
let name = String::try_from(mailbox)?;
let user = match self.session.user.as_ref() {
Some(u) => u,
_ => {
return Ok(vec![ImapRes::Status(
Status::no(Some(self.tag.clone()), None, "Not implemented")
.map_err(Error::msg)?,
)])
}
};
let mut mb = Mailbox::new(&user.creds, name.clone())?;
tracing::info!(username=%user.name, mailbox=%name, "mailbox.selected");
let sum = mb.summary().await?;
tracing::trace!(summary=%sum, "mailbox.summary");
let body = vec![Data::Exists(sum.exists.try_into()?), Data::Recent(0)];
self.session.selected = Some(mb);
Ok(vec![ImapRes::Status(
Status::ok(
Some(self.tag.clone()),
Some(Code::ReadWrite),
"Select completed",
)
.map_err(Error::msg)?,
)])
}
pub async fn fetch(
&self,
sequence_set: SequenceSet,
attributes: MacroOrFetchAttributes,
uid: bool,
) -> Result<Response> {
Ok(vec![ImapRes::Status(
Status::bad(Some(self.tag.clone()), None, "Not implemented").map_err(Error::msg)?,
)])
}
}
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