mirror of https://github.com/fluffle/goirc
102 lines
3.1 KiB
Go
102 lines
3.1 KiB
Go
package client
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// this file contains the basic set of event handlers
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// to manage tracking an irc connection etc.
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import (
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"strings"
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)
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// sets up the internal event handlers to do essential IRC protocol things
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var intHandlers = map[string]HandlerFunc{
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INIT: (*Conn).h_init,
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"001": (*Conn).h_001,
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"433": (*Conn).h_433,
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CTCP: (*Conn).h_CTCP,
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NICK: (*Conn).h_NICK,
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PING: (*Conn).h_PING,
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PRIVMSG: (*Conn).h_PRIVMSG,
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}
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func (conn *Conn) addIntHandlers() {
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for n, h := range intHandlers {
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// internal handlers are essential for the IRC client
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// to function, so we don't save their Removers here
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conn.Handle(n, h)
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}
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}
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// Password/User/Nick broadcast on connection.
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func (conn *Conn) h_init(line *Line) {
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if conn.password != "" {
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conn.Pass(conn.password)
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}
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conn.Nick(conn.Me.Nick)
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conn.User(conn.Me.Ident, conn.Me.Name)
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}
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// Basic ping/pong handler
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func (conn *Conn) h_PING(line *Line) {
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conn.Pong(line.Args[0])
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}
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// Handler to trigger a "CONNECTED" event on receipt of numeric 001
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func (conn *Conn) h_001(line *Line) {
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// we're connected!
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conn.dispatch(&Line{Cmd: CONNECTED})
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// and we're being given our hostname (from the server's perspective)
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t := line.Args[len(line.Args)-1]
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if idx := strings.LastIndex(t, " "); idx != -1 {
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t = t[idx+1:]
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if idx = strings.Index(t, "@"); idx != -1 {
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conn.Me.Host = t[idx+1:]
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}
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}
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}
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// XXX: do we need 005 protocol support message parsing here?
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// probably in the future, but I can't quite be arsed yet.
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/*
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:irc.pl0rt.org 005 GoTest CMDS=KNOCK,MAP,DCCALLOW,USERIP UHNAMES NAMESX SAFELIST HCN MAXCHANNELS=20 CHANLIMIT=#:20 MAXLIST=b:60,e:60,I:60 NICKLEN=30 CHANNELLEN=32 TOPICLEN=307 KICKLEN=307 AWAYLEN=307 :are supported by this server
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:irc.pl0rt.org 005 GoTest MAXTARGETS=20 WALLCHOPS WATCH=128 WATCHOPTS=A SILENCE=15 MODES=12 CHANTYPES=# PREFIX=(qaohv)~&@%+ CHANMODES=beI,kfL,lj,psmntirRcOAQKVCuzNSMT NETWORK=bb101.net CASEMAPPING=ascii EXTBAN=~,cqnr ELIST=MNUCT :are supported by this server
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:irc.pl0rt.org 005 GoTest STATUSMSG=~&@%+ EXCEPTS INVEX :are supported by this server
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*/
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// Handler to deal with "433 :Nickname already in use"
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func (conn *Conn) h_433(line *Line) {
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// Args[1] is the new nick we were attempting to acquire
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neu := conn.NewNick(line.Args[1])
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conn.Nick(neu)
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// if this is happening before we're properly connected (i.e. the nick
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// we sent in the initial NICK command is in use) we will not receive
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// a NICK message to confirm our change of nick, so ReNick here...
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if line.Args[1] == conn.Me.Nick {
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if conn.st {
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conn.ST.ReNick(conn.Me.Nick, neu)
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} else {
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conn.Me.Nick = neu
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}
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}
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}
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// Handle VERSION requests and CTCP PING
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func (conn *Conn) h_CTCP(line *Line) {
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if line.Args[0] == VERSION {
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conn.CtcpReply(line.Nick, VERSION, "powered by goirc...")
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} else if line.Args[0] == PING {
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conn.CtcpReply(line.Nick, PING, line.Args[2])
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}
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}
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// Handle updating our own NICK if we're not using the state tracker
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func (conn *Conn) h_NICK(line *Line) {
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if !conn.st && line.Nick == conn.Me.Nick {
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conn.Me.Nick = line.Args[0]
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}
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}
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// Handle PRIVMSGs that trigger Commands
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func (conn *Conn) h_PRIVMSG(line *Line) {
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conn.command(line)
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}
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