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reverse-dns clients on connect with pre-registration notices (checking ident / looking up your hostname)

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This commit is contained in:
Jean Chevronnet 2026-08-07 18:39:03 +00:00
parent 58596aea66
commit 4fc26d13e9
8 changed files with 392 additions and 24 deletions
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45
src/ircd.rs
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@ -4,7 +4,7 @@
use std::collections::HashMap;
use std::net::{SocketAddr, TcpStream};
use std::sync::mpsc::Receiver;
use std::sync::mpsc::{Receiver, Sender};
use crate::command::Command;
use crate::config::Config;
@ -34,6 +34,11 @@ pub enum Event {
Disconnect {
uid: Uid,
},
/// A client's reverse-DNS lookup finished (`None` = no confirmed hostname).
ResolvedHost {
uid: Uid,
host: Option<String>,
},
/// Background timer tick — drives ping/idle timeouts.
Tick,
}
@ -45,9 +50,9 @@ pub struct Ircd {
}
impl Ircd {
pub fn new(cfg: Config) -> Ircd {
pub fn new(cfg: Config, event_tx: Sender<Event>) -> Ircd {
Ircd {
server: Server::new(cfg),
server: Server::new(cfg, event_tx),
commands: command_table(),
modules: crate::modules::default_modules(),
}
@ -88,6 +93,10 @@ impl Ircd {
self.quit_user(uid, "Connection closed");
}
}
Event::ResolvedHost { uid, host } => {
self.server.on_resolved(uid, host);
self.try_register(uid); // DNS may have been the last thing we waited on
}
Event::Tick => self.on_tick(),
}
self.drain_hooks();
@ -162,15 +171,27 @@ impl Ircd {
}
// …or completed the registration handshake
if !registered {
let ready = self
.server
.users
.get(&uid)
.map(|u| !u.registered && !u.nick.is_empty() && !u.ident.is_empty() && !u.cap)
.unwrap_or(false);
if ready {
self.complete_registration(uid);
}
self.try_register(uid);
}
}
/// Finish registration if NICK, USER, CAP and the reverse-DNS lookup are all
/// done. Called after each command and when a DNS result arrives.
fn try_register(&mut self, uid: Uid) {
let ready = self
.server
.users
.get(&uid)
.map(|u| {
!u.registered
&& !u.nick.is_empty()
&& !u.ident.is_empty()
&& !u.cap
&& !u.dns_pending
})
.unwrap_or(false);
if ready {
self.complete_registration(uid);
}
}