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pub mod mail_ident;
mod uidindex;
use std::convert::TryFrom;
use anyhow::Result;
use k2v_client::K2vClient;
use rusoto_s3::S3Client;
use crate::bayou::Bayou;
use crate::cryptoblob::Key;
use crate::login::Credentials;
use crate::mail::mail_ident::*;
use crate::mail::uidindex::*;
// Internet Message Format
// aka RFC 822 - RFC 2822 - RFC 5322
pub struct IMF(Vec<u8>);
pub struct Summary<'a> {
pub validity: ImapUidvalidity,
pub next: ImapUid,
pub exists: u32,
pub recent: u32,
pub flags: FlagIter<'a>,
pub unseen: Option<&'a ImapUid>,
}
impl std::fmt::Display for Summary<'_> {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(
f,
"uidvalidity: {}, uidnext: {}, exists: {}",
self.validity, self.next, self.exists
)
}
}
// Non standard but common flags:
// https://www.iana.org/assignments/imap-jmap-keywords/imap-jmap-keywords.xhtml
pub struct Mailbox {
bucket: String,
pub name: String,
key: Key,
k2v: K2vClient,
s3: S3Client,
uid_index: Bayou<UidIndex>,
}
impl Mailbox {
pub fn new(creds: &Credentials, name: String) -> Result<Self> {
let uid_index = Bayou::<UidIndex>::new(creds, name.clone())?;
Ok(Self {
bucket: creds.bucket().to_string(),
name,
key: creds.keys.master.clone(),
k2v: creds.k2v_client()?,
s3: creds.s3_client()?,
uid_index,
})
}
// Get a summary of the mailbox, useful for the SELECT command for example
pub async fn summary(&mut self) -> Result<Summary> {
self.uid_index.sync().await?;
let state = self.uid_index.state();
let unseen = state
.idx_by_flag
.get(&"$unseen".to_string())
.and_then(|os| os.get_min());
let recent = state
.idx_by_flag
.get(&"\\Recent".to_string())
.map(|os| os.len())
.unwrap_or(0);
return Ok(Summary {
validity: state.uidvalidity,
next: state.uidnext,
exists: u32::try_from(state.idx_by_uid.len())?,
recent: u32::try_from(recent)?,
flags: state.idx_by_flag.flags(),
unseen,
});
}
// Insert an email in the mailbox
pub async fn append(&mut self, _msg: IMF) -> Result<()> {
Ok(())
}
// Copy an email from an external to this mailbox
// @FIXME is it needed or could we implement it with append?
pub async fn copy(&mut self, _mailbox: String, _uid: ImapUid) -> Result<()> {
Ok(())
}
// Delete all emails with the \Delete flag in the mailbox
// Can be called by CLOSE and EXPUNGE
// @FIXME do we want to implement this feature or a simpler "delete" command
// The controller could then "fetch \Delete" and call delete on each email?
pub async fn expunge(&mut self) -> Result<()> {
Ok(())
}
// Update flags of a range of emails
pub async fn store(&mut self) -> Result<()> {
Ok(())
}
pub async fn fetch(&mut self) -> Result<()> {
Ok(())
}
pub async fn test(&mut self) -> Result<()> {
self.uid_index.sync().await?;
dump(&self.uid_index);
let add_mail_op = self
.uid_index
.state()
.op_mail_add(gen_ident(), vec!["\\Unseen".into()]);
self.uid_index.push(add_mail_op).await?;
dump(&self.uid_index);
if self.uid_index.state().idx_by_uid.len() > 6 {
for i in 0..2 {
let (_, ident) = self
.uid_index
.state()
.idx_by_uid
.iter()
.skip(3 + i)
.next()
.unwrap();
let del_mail_op = self.uid_index.state().op_mail_del(*ident);
self.uid_index.push(del_mail_op).await?;
dump(&self.uid_index);
}
}
Ok(())
}
}
fn dump(uid_index: &Bayou<UidIndex>) {
let s = uid_index.state();
println!("---- MAILBOX STATE ----");
println!("UIDVALIDITY {}", s.uidvalidity);
println!("UIDNEXT {}", s.uidnext);
println!("INTERNALSEQ {}", s.internalseq);
for (uid, ident) in s.idx_by_uid.iter() {
println!(
"{} {} {}",
uid,
hex::encode(ident.0),
s.table.get(ident).cloned().unwrap().1.join(", ")
);
}
println!("");
}
|
