60 lines
1.8 KiB
Rust
60 lines
1.8 KiB
Rust
//! `TLINE <mask>` — oper command reporting how many currently-connected local users
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//! a would-be K/G/Z-line mask matches, to gauge the blast radius before setting the ban.
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use crate::channels::glob_match;
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use crate::command::{CmdResult, Command};
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use crate::numeric::ERR_NOPRIVILEGES;
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use crate::server::Server;
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use crate::Uid;
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pub fn commands() -> Vec<Box<dyn Command>> {
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vec![Box::new(TLine)]
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}
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struct TLine;
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impl Command for TLine {
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fn name(&self) -> &'static str {
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"TLINE"
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}
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fn min_params(&self) -> usize {
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1
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}
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fn handle(&self, s: &mut Server, uid: Uid, params: &[String]) -> CmdResult {
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if !s.is_oper(uid) {
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s.numeric(
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uid,
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ERR_NOPRIVILEGES,
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":Permission Denied- You're not an IRC operator",
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);
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return CmdResult::Fail;
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}
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let mask = ¶ms[0];
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let total = s.users.len();
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let matched = s
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.users
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.values()
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.filter(|u| {
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let forms = [
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format!("{}!{}@{}", u.nick, u.ident, u.host_display()),
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format!("{}@{}", u.ident, u.host),
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format!("{}@{}", u.ident, u.addr.ip()),
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];
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forms.iter().any(|f| glob_match(mask, f))
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})
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.count();
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let pct = (matched * 100).checked_div(total).unwrap_or(0);
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let nick = s
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.users
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.get(&uid)
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.map(|u| u.nick.clone())
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.unwrap_or_default();
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s.send(
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uid,
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format!(
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":{} NOTICE {nick} :*** TLINE: {mask} matches {matched} of {total} local users ({pct}%)",
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s.name
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),
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);
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CmdResult::Ok
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}
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}
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