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names: fold the member list across multiple 353 replies to stay under 512 bytes

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This commit is contained in:
Jean Chevronnet 2026-08-16 18:45:12 +00:00
parent 94f57608f7
commit e57e4c3a6a
1 changed files with 20 additions and 12 deletions
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32
src/channels.rs
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@ -1019,7 +1019,7 @@ impl Server {
// +u auditorium: a non-op viewer only sees ops (plus themselves)
let hide =
ch.modes.auditorium && ch.members.get(&uid).map(|m| m.rank()).unwrap_or(0) < RANK_OP;
let mut names = String::new();
let mut toks: Vec<String> = Vec::new();
for (m, flags) in &ch.members {
if hide && *m != uid && flags.rank() < RANK_OP {
continue;
@ -1034,10 +1034,8 @@ impl Server {
flags.prefix_char().to_string()
};
if let Some(u) = self.users.get(m) {
names.push_str(&p);
let shown = if uhost { u.prefix() } else { u.nick.clone() };
names.push_str(&shown);
names.push(' ');
toks.push(format!("{p}{shown}"));
}
}
// remote members (users on linked servers)
@ -1051,10 +1049,8 @@ impl Server {
} else {
mem.prefix_char().to_string()
};
names.push_str(&p);
let shown = if uhost { ru.prefix() } else { ru.nick.clone() };
names.push_str(&shown);
names.push(' ');
toks.push(format!("{p}{shown}"));
}
}
// visibility symbol: @ secret (+s), * private (+p), = public
@ -1065,11 +1061,23 @@ impl Server {
} else {
'='
};
self.numeric(
uid,
RPL_NAMREPLY,
&format!("{vis} {} :{}", ch.name, names.trim_end()),
);
// fold members across multiple 353 lines so a big channel stays under 512 bytes
let askern = self.users.get(&uid).map(|u| u.nick.len()).unwrap_or(1);
let budget = 500usize.saturating_sub(self.name.len() + askern + ch.name.len() + 12);
let mut line = String::new();
for t in &toks {
if !line.is_empty() && line.len() + 1 + t.len() > budget {
self.numeric(uid, RPL_NAMREPLY, &format!("{vis} {} :{line}", ch.name));
line.clear();
}
if !line.is_empty() {
line.push(' ');
}
line.push_str(t);
}
if !line.is_empty() {
self.numeric(uid, RPL_NAMREPLY, &format!("{vis} {} :{line}", ch.name));
}
self.numeric(
uid,
RPL_ENDOFNAMES,