42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
//! Greet each connecting user with a random line from the configured quote set.
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//! Off unless one or more `randquote = <line>` are configured.
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use openssl::rand::rand_bytes;
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use crate::module::Module;
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use crate::server::Server;
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use crate::Uid;
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/// A random index in `0..n` from the CSPRNG (0 if `n == 0` or on error).
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fn rand_below(n: usize) -> usize {
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if n == 0 {
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return 0;
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}
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let mut b = [0u8; 8];
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if rand_bytes(&mut b).is_err() {
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return 0;
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}
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(u64::from_le_bytes(b) % n as u64) as usize
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}
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pub struct RandQuote;
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impl Module for RandQuote {
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fn name(&self) -> &'static str {
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"randquote"
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}
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fn on_user_connect(&mut self, srv: &mut Server, uid: Uid) {
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let quotes = srv.conf_all("randquote");
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if quotes.is_empty() {
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return;
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}
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let quote = quotes[rand_below(quotes.len())].clone();
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let nick = srv
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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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srv.send(uid, format!(":{} NOTICE {nick} :{quote}", srv.name));
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}
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}
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