talircd/lib/server/router.ml

82 lines
1.9 KiB
OCaml

type nick_key = Nick_key of string [@@unboxed]
let nick_key n = Nick_key (String.lowercase_ascii n) (* TODO: "scandinavian" lowercase *)
let unset = Nick_key ""
type t = {
users : (nick_key, user) Hashtbl.t
(* TODO: channels *)
}
and user = {
router : t;
hostname : string;
mutable key : nick_key;
mutable nick : Irc.nick option;
mutable userinfo : Irc.userinfo option;
mutable mode : Irc.Mode.t;
inbox : Irc.Msg.t Lwt_stream.t;
push_inbox : (Irc.Msg.t option -> unit);
}
let make () =
{ users = Hashtbl.create 4096 }
let find_user t nick =
Hashtbl.find_opt t.users (nick_key nick)
module User = struct
type t = user
let make router ~hostname =
let inbox, push_inbox = Lwt_stream.create () in
{
router;
hostname;
key = unset;
nick = None;
userinfo = None;
mode = Irc.Mode.of_string "iw";
inbox; push_inbox;
}
let inbox t = t.inbox
let send t msg = try t.push_inbox (Some msg) with Lwt_stream.Closed -> ()
let close t = try t.push_inbox None with Lwt_stream.Closed -> ()
let nick t = Option.value t.nick ~default:"*"
let prefix t : Irc.Msg.prefix =
match t.nick with
| None -> No_prefix
| Some nick -> User_prefix (nick, t.userinfo, Some t.hostname)
let is_registered t = t.key <> unset
let unset_nick t =
Hashtbl.remove t.router.users t.key;
t.key <- unset
let set_nick t new_nick =
let key = nick_key new_nick in
if Hashtbl.mem t.router.users key then
`nick_in_use
else begin
((* TODO: relay NICK message *));
unset_nick t;
Hashtbl.add t.router.users key t;
t.key <- key;
`nick_set
end
let cleanup t =
(* TODO: relay QUIT message *)
close t;
unset_nick t
end
let privmsg src dst txt =
let prefix = User.prefix src in
match dst with
| `user dst ->
let msg = Irc.Msg.make "PRIVMSG" [User.nick dst; txt] ~prefix in
User.send dst msg