94 lines
2.9 KiB
Rust
94 lines
2.9 KiB
Rust
/*
|
|
* meli - nntp module.
|
|
*
|
|
* Copyright 2017 - 2019 Manos Pitsidianakis
|
|
*
|
|
* This file is part of meli.
|
|
*
|
|
* meli is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* meli is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with meli. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
use super::*;
|
|
|
|
use crate::backends::*;
|
|
use crate::email::*;
|
|
use crate::error::MeliError;
|
|
use std::sync::Arc;
|
|
|
|
/// `BackendOp` implementor for Nntp
|
|
#[derive(Debug, Clone)]
|
|
pub struct NntpOp {
|
|
uid: usize,
|
|
mailbox_hash: MailboxHash,
|
|
connection: Arc<FutureMutex<NntpConnection>>,
|
|
uid_store: Arc<UIDStore>,
|
|
}
|
|
|
|
impl NntpOp {
|
|
pub fn new(
|
|
uid: usize,
|
|
mailbox_hash: MailboxHash,
|
|
connection: Arc<FutureMutex<NntpConnection>>,
|
|
uid_store: Arc<UIDStore>,
|
|
) -> Self {
|
|
NntpOp {
|
|
uid,
|
|
connection,
|
|
mailbox_hash,
|
|
uid_store,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl BackendOp for NntpOp {
|
|
fn as_bytes(&mut self) -> ResultFuture<Vec<u8>> {
|
|
let mailbox_hash = self.mailbox_hash;
|
|
let uid = self.uid;
|
|
let uid_store = self.uid_store.clone();
|
|
let connection = self.connection.clone();
|
|
Ok(Box::pin(async move {
|
|
let mut res = String::with_capacity(8 * 1024);
|
|
let mut conn = connection.lock().await;
|
|
let path = uid_store.mailboxes.lock().await[&mailbox_hash]
|
|
.name()
|
|
.to_string();
|
|
conn.send_command(format!("GROUP {}", path).as_bytes())
|
|
.await?;
|
|
conn.read_response(&mut res, false).await?;
|
|
if !res.starts_with("211 ") {
|
|
return Err(MeliError::new(format!(
|
|
"{} Could not select newsgroup {}: expected GROUP response but got: {}",
|
|
&uid_store.account_name, path, res
|
|
)));
|
|
}
|
|
conn.send_command(format!("ARTICLE {}", uid).as_bytes())
|
|
.await?;
|
|
conn.read_response(&mut res, true).await?;
|
|
if !res.starts_with("220 ") {
|
|
return Err(MeliError::new(format!(
|
|
"{} Could not select article {}: expected ARTICLE response but got: {}",
|
|
&uid_store.account_name, path, res
|
|
)));
|
|
}
|
|
let pos = res.find("\r\n").unwrap_or(0) + 2;
|
|
|
|
Ok(res.as_bytes()[pos..].to_vec())
|
|
}))
|
|
}
|
|
|
|
fn fetch_flags(&self) -> ResultFuture<Flag> {
|
|
Ok(Box::pin(async move { Ok(Flag::default()) }))
|
|
}
|
|
}
|