nickserv: add INFO and ALIST

INFO shows an account's registration date and (to its owner) email; ALIST
lists the channels an account founds or has access on. The UTC time
formatter moves to the db module so both services share it.

modules/chanserv/chanserv.rs

@@ -100,7 +100,7 @@ impl Service for ChanServ {
                         if !info.desc.is_empty() {
                             ctx.notice(me, from.uid, format!("  Description: {}", info.desc));
                         }
-                        ctx.notice(me, from.uid, format!("  Registered : {}", human_time(info.ts)));
+                        ctx.notice(me, from.uid, format!("  Registered : {}", crate::engine::db::human_time(info.ts)));
                     }
                     None => ctx.notice(me, from.uid, format!("\x02{chan}\x02 isn't registered.")),
                 }
@@ -268,32 +268,3 @@ fn show_mlock(info: &ChannelInfo) -> String {
     s
 }
 
-// Format a Unix timestamp (seconds) as "YYYY-MM-DD HH:MM:SS UTC", using Howard
-// Hinnant's civil-from-days algorithm so no date crate is needed.
-fn human_time(ts: u64) -> String {
-    let days = (ts / 86400) as i64;
-    let rem = ts % 86400;
-    let (hh, mm, ss) = (rem / 3600, (rem % 3600) / 60, rem % 60);
-    let z = days + 719468;
-    let era = (if z >= 0 { z } else { z - 146096 }) / 146097;
-    let doe = z - era * 146097;
-    let yoe = (doe - doe / 1460 + doe / 36524 - doe / 146096) / 365;
-    let y = yoe + era * 400;
-    let doy = doe - (365 * yoe + yoe / 4 - yoe / 100);
-    let mp = (5 * doy + 2) / 153;
-    let day = doy - (153 * mp + 2) / 5 + 1;
-    let month = if mp < 10 { mp + 3 } else { mp - 9 };
-    let year = y + i64::from(month <= 2);
-    format!("{year:04}-{month:02}-{day:02} {hh:02}:{mm:02}:{ss:02} UTC")
-}
-
-#[cfg(test)]
-mod tests {
-    use super::human_time;
-
-    #[test]
-    fn formats_unix_time_as_utc() {
-        assert_eq!(human_time(0), "1970-01-01 00:00:00 UTC");
-        assert_eq!(human_time(1783844590), "2026-07-12 08:23:10 UTC");
-    }
-}

modules/chanserv/seen.rs

@@ -12,7 +12,7 @@ pub fn handle(me: &str, from: &Sender, args: &[&str], ctx: &mut ServiceCtx, net:
         return;
     }
     match net.last_seen(nick) {
-        Some(s) => ctx.notice(me, from.uid, format!("\x02{}\x02 was last seen {} ({}).", s.nick, super::human_time(s.ts), s.what)),
+        Some(s) => ctx.notice(me, from.uid, format!("\x02{}\x02 was last seen {} ({}).", s.nick, crate::engine::db::human_time(s.ts), s.what)),
         None => ctx.notice(me, from.uid, format!("I have no record of \x02{nick}\x02.")),
     }
 }

modules/nickserv/alist.rs

@@ -0,0 +1,27 @@
+use crate::engine::db::Db;
+use crate::engine::service::{Sender, ServiceCtx};
+
+// ALIST: list the channels the sender's account founds or has access on.
+pub fn handle(me: &str, from: &Sender, ctx: &mut ServiceCtx, db: &Db) {
+    let Some(account) = from.account else {
+        ctx.notice(me, from.uid, "You need to be logged in. Identify to NickServ first.");
+        return;
+    };
+    let mut rows: Vec<(String, &str)> = Vec::new();
+    for c in db.channels() {
+        if c.founder.eq_ignore_ascii_case(account) {
+            rows.push((c.name.clone(), "founder"));
+        } else if let Some(a) = c.access.iter().find(|a| a.account.eq_ignore_ascii_case(account)) {
+            rows.push((c.name.clone(), if a.level == "voice" { "voice" } else { "op" }));
+        }
+    }
+    if rows.is_empty() {
+        ctx.notice(me, from.uid, "You have access on no channels.");
+        return;
+    }
+    rows.sort_by(|a, b| a.0.cmp(&b.0));
+    ctx.notice(me, from.uid, format!("Channels you have access on ({}):", rows.len()));
+    for (chan, role) in rows {
+        ctx.notice(me, from.uid, format!("  \x02{chan}\x02 ({role})"));
+    }
+}

modules/nickserv/info.rs

@@ -0,0 +1,20 @@
+use crate::engine::db::{human_time, Db};
+use crate::engine::service::{Sender, ServiceCtx};
+
+// INFO [account]: show an account's registration details. The email is shown
+// only to the account's own owner.
+pub fn handle(me: &str, from: &Sender, args: &[&str], ctx: &mut ServiceCtx, db: &Db) {
+    let name = args.get(1).copied().unwrap_or(from.nick);
+    let Some(acct) = db.account(name) else {
+        ctx.notice(me, from.uid, format!("\x02{name}\x02 isn't registered."));
+        return;
+    };
+    ctx.notice(me, from.uid, format!("Information for \x02{}\x02:", acct.name));
+    ctx.notice(me, from.uid, format!("  Registered : {}", human_time(acct.ts)));
+    if from.account == Some(acct.name.as_str()) {
+        match &acct.email {
+            Some(email) => ctx.notice(me, from.uid, format!("  Email      : {email}")),
+            None => ctx.notice(me, from.uid, "  Email      : (none set)"),
+        }
+    }
+}

modules/nickserv/nickserv.rs

@@ -10,6 +10,10 @@ mod identify;
 mod logout;
 #[path = "cert.rs"]
 mod cert;
+#[path = "info.rs"]
+mod info;
+#[path = "alist.rs"]
+mod alist;
 
 pub struct NickServ {
     pub uid: String,
@@ -40,7 +44,9 @@ impl Service for NickServ {
             Some("IDENTIFY") | Some("ID") => identify::handle(me, from, args, ctx, db),
             Some("LOGOUT") | Some("LOGOFF") => logout::handle(me, &self.guest_nick, &mut self.guest_seq, from, ctx),
             Some("CERT") => cert::handle(me, from, args, ctx, db),
-            Some("HELP") => ctx.notice(me, from.uid, "NickServ looks after your nickname. Commands: \x02REGISTER\x02 <password> [email], \x02IDENTIFY\x02 [account] <password>, \x02LOGOUT\x02, \x02CERT\x02 ADD|DEL|LIST <password> [fingerprint]."),
+            Some("INFO") => info::handle(me, from, args, ctx, db),
+            Some("ALIST") => alist::handle(me, from, ctx, db),
+            Some("HELP") => ctx.notice(me, from.uid, "NickServ looks after your nickname. Commands: \x02REGISTER\x02 <password> [email], \x02IDENTIFY\x02 [account] <password>, \x02INFO\x02 [account], \x02ALIST\x02, \x02LOGOUT\x02, \x02CERT\x02 ADD|DEL|LIST <password> [fingerprint]."),
             Some(other) => ctx.notice(me, from.uid, format!("I don't know the command \x02{other}\x02. Try \x02HELP\x02.")),
             None => {}
         }