2 # Irc.pl: IRC core stuff.
5 # NOTE: Based on code by Kevin Lenzo & Patrick Cole (c) 1997
8 if (&IsParam("useStrict")) { use strict; }
10 use vars qw($nickserv);
13 # static scalar variables.
14 $mask{ip} = '(\d+)\.(\d+)\.(\d+)\.(\d+)';
15 $mask{host} = '[\d\w\_\-\/]+\.[\.\d\w\_\-\/]+';
16 $mask{chan} = '[\#\&]\S*|_default';
17 my $isnick1 = 'a-zA-Z\[\]\{\}\_\`\^\|\\\\';
18 my $isnick2 = '0-9\-';
19 $mask{nick} = "[$isnick1]{1}[$isnick1$isnick2]*";
20 $mask{nuh} = '\S*!\S*\@\S*';
27 while (my $host = shift @ircServers) {
28 # JUST IN CASE. irq was complaining about this.
29 if ($lastrun == time()) {
30 &DEBUG("ircloop: hrm... lastrun == time()");
37 &DEBUG("ircloop: ircServers[x] = NULL.");
41 next unless (exists $ircPort{$host});
43 my $retval = &irc($host, $ircPort{$host});
44 next unless (defined $retval and $retval == 0);
47 if ($error % 3 == 0 and $error != 0) {
48 &status("IRC: Could not connect.");
54 &status("IRC: cannot connect to any IRC servers; stopping.");
60 &status("IRC: ok, done one cycle of IRC servers; trying again.");
67 my ($server,$port) = @_;
69 my $iaddr = inet_aton($server);
70 my $paddr = sockaddr_in($port, $iaddr);
71 my $proto = getprotobyname('tcp');
74 &status("Connecting to port $port of server $server ...");
77 if ($server =~ /\D$/) {
78 my $packed = scalar(gethostbyname($server));
80 if (!defined $packed) {
81 &status(" cannot resolve $server.");
85 my $resolve = inet_ntoa($packed);
86 &status(" resolved to $resolve.");
87 ### warning in Sys/Hostname line 78???
88 ### caused inside Net::IRC?
94 Nick => $param{'ircNick'},
97 Ircname => $param{'ircName'},
99 $args{'LocalAddr'} = $param{'ircHost'} if ($param{'ircHost'});
100 $args{'Password'} = $param{'ircPasswd'} if ($param{'ircPasswd'});
102 $conn = $irc->newconn(%args);
104 if (!defined $conn) {
105 &ERROR("irc: conn was not created!defined!!!");
111 # change internal timeout value for scheduler.
112 $irc->{_timeout} = 10; # how about 60?
113 # Net::IRC debugging.
116 $ircstats{'Server'} = "$server:$port";
119 $conn->add_handler('caction', \&on_action);
120 $conn->add_handler('cdcc', \&on_dcc);
121 $conn->add_handler('cping', \&on_ping);
122 $conn->add_handler('crping', \&on_ping_reply);
123 $conn->add_handler('cversion', \&on_version);
124 $conn->add_handler('crversion', \&on_crversion);
125 $conn->add_handler('dcc_open', \&on_dcc_open);
126 $conn->add_handler('dcc_close', \&on_dcc_close);
127 $conn->add_handler('chat', \&on_chat);
128 $conn->add_handler('msg', \&on_msg);
129 $conn->add_handler('public', \&on_public);
130 $conn->add_handler('join', \&on_join);
131 $conn->add_handler('part', \&on_part);
132 $conn->add_handler('topic', \&on_topic);
133 $conn->add_handler('invite', \&on_invite);
134 $conn->add_handler('kick', \&on_kick);
135 $conn->add_handler('mode', \&on_mode);
136 $conn->add_handler('nick', \&on_nick);
137 $conn->add_handler('quit', \&on_quit);
138 $conn->add_handler('notice', \&on_notice);
139 $conn->add_handler('whoischannels', \&on_whoischannels);
140 $conn->add_handler('useronchannel', \&on_useronchannel);
141 $conn->add_handler('whois', \&on_whois);
142 $conn->add_handler('other', \&on_other);
143 $conn->add_global_handler('disconnect', \&on_disconnect);
144 $conn->add_global_handler([251,252,253,254,255], \&on_init);
145 ### $conn->add_global_handler([251,252,253,254,255,302], \&on_init);
146 $conn->add_global_handler(315, \&on_endofwho);
147 $conn->add_global_handler(422, \&on_endofwho); # nomotd.
148 $conn->add_global_handler(324, \&on_modeis);
149 $conn->add_global_handler(333, \&on_topicinfo);
150 $conn->add_global_handler(352, \&on_who);
151 $conn->add_global_handler(353, \&on_names);
152 $conn->add_global_handler(366, \&on_endofnames);
153 $conn->add_global_handler(376, \&on_endofmotd); # on_connect.
154 $conn->add_global_handler(433, \&on_nick_taken);
155 $conn->add_global_handler(439, \&on_targettoofast);
156 # for proper joinnextChan behaviour
157 $conn->add_global_handler(471, \&on_chanfull);
158 $conn->add_global_handler(473, \&on_inviteonly);
159 $conn->add_global_handler(474, \&on_banned);
160 $conn->add_global_handler(475, \&on_badchankey);
161 $conn->add_global_handler(443, \&on_useronchan);
163 # end of handler stuff.
168 ######################################################################
169 ######## IRC ALIASES IRC ALIASES IRC ALIASES IRC ALIASES #######
170 ######################################################################
176 # slow down a bit if traffic is "high".
177 # need to take into account time of last message sent.
178 if ($last{buflen} > 256 and length($buf) > 256) {
182 $conn->sl($buf) if (&whatInterface() =~ /IRC/);
184 $last{buflen} = length($buf);
191 &WARN("say: msg == $msg.");
195 &status("</$talkchannel> $msg");
196 if (&whatInterface() =~ /IRC/) {
197 $msg = "zero" if ($msg =~ /^0+$/);
200 if ($t == $pubtime) {
202 $pubsize += length $msg;
204 my $i = &getChanConfDefault("sendPublicLimitLines", 3);
205 my $j = &getChanConfDefault("sendPublicLimitBytes", 1000);
207 if ( ($pubcount % $i) == 0 and $pubcount) {
209 } elsif ($pubsize > $j) {
217 $pubsize = length $msg;
220 $conn->privmsg($talkchannel, $msg);
225 my ($nick, $msg) = @_;
226 if (!defined $nick) {
227 &ERROR("msg: nick == NULL.");
233 &WARN("msg: msg == $msg.");
237 if ($msgType =~ /chat/i) {
238 # todo: warn that we're using msg() to do DCC CHAT?
239 &dccsay($nick, $msg);
240 # todo: make dccsay deal with flood protection?
244 &status(">$nick< $msg");
246 if (&whatInterface() =~ /IRC/) {
249 if ($t == $msgtime) {
251 $msgsize += length $msg;
253 my $i = &getChanConfDefault("sendPrivateLimitLines", 3);
254 my $j = &getChanConfDefault("sendPrivateLimitBytes", 1000);
255 if ( ($msgcount % $i) == 0 and $msgcount) {
257 } elsif ($msgsize > $j) {
265 $msgsize = length $msg;
268 $conn->privmsg($nick, $msg);
272 # Usage: &action(nick || chan, txt);
274 my ($target, $txt) = @_;
276 &WARN("action: txt == NULL.");
280 my $rawout = "PRIVMSG $target :\001ACTION $txt\001";
281 if (length $rawout > 510) {
282 &status("action: txt too long; truncating.");
284 chop($rawout) while (length($rawout) > 510);
288 &status("* $ident/$target $txt");
292 # Usage: ¬ice(nick || chan, txt);
294 my ($target, $txt) = @_;
296 &WARN("notice: txt == NULL.");
300 &status("-$target- $txt");
304 if ($t == $nottime) {
306 $notsize += length $txt;
308 my $i = &getChanConfDefault("sendNoticeLimitLines", 3);
309 my $j = &getChanConfDefault("sendNoticeLimitBytes", 1000);
311 if ( ($notcount % $i) == 0 and $notcount) {
313 } elsif ($notsize > $j) {
321 $notsize = length $txt;
324 $conn->notice($target, $txt);
328 my ($txt,$flag) = @_;
330 ### FIXME: flag not supported yet.
332 foreach (keys %{ $dcc{'CHAT'} }) {
333 $conn->privmsg($dcc{'CHAT'}{$_}, $txt);
338 ### perform commands.
341 # Usage: &performReply($reply);
344 $reply =~ /([\.\?\s]+)$/;
346 &checkMsgType($reply);
348 if ($msgType eq 'public') {
349 if (rand() < 0.5 or $reply =~ /[\.\?]$/) {
350 $reply = "$orig{who}: ".$reply;
352 $reply = "$reply, ".$orig{who};
355 } elsif ($msgType eq 'private') {
359 $reply = "$reply, ".$orig{who};
362 } elsif ($msgType eq 'chat') {
363 if (!exists $dcc{'CHAT'}{$who}) {
364 &VERB("pSR: dcc{'CHAT'}{$who} does not exist.",2);
367 $conn->privmsg($dcc{'CHAT'}{$who}, $reply);
369 &ERROR("PR: msgType invalid? ($msgType).");
374 sub performAddressedReply {
375 return unless ($addressed);
380 &performStrictReply(@_);
383 # Usage: &performStrictReply($reply);
384 sub performStrictReply {
387 &checkMsgType($reply);
389 if ($msgType eq 'private') {
391 } elsif ($msgType eq 'public') {
393 } elsif ($msgType eq 'chat') {
394 &dccsay(lc $who, $reply);
396 &ERROR("pSR: msgType invalid? ($msgType).");
401 my($who, $reply) = @_;
403 if (!defined $reply or $reply =~ /^\s*$/) {
404 &WARN("dccsay: reply == NULL.");
408 if (!exists $dcc{'CHAT'}{$who}) {
409 &VERB("pSR: dcc{'CHAT'}{$who} does not exist. (2)",2);
413 &status("=>$who<= $reply"); # dcc chat.
414 $conn->privmsg($dcc{'CHAT'}{$who}, $reply);
421 foreach $type (keys %dcc) {
422 &FIXME("dcc_close: $who");
423 my @who = grep /^\Q$who\E$/i, keys %{ $dcc{$type} };
424 next unless (scalar @who);
426 &DEBUG("dcc_close... close $who!");
432 my $chan = lc $chankey;
434 if ($chankey =~ s/^($mask{chan}),\S+/ /) {
438 # hopefully validChan is right.
439 if (&validChan($chan)) {
440 &status("join: already on $chan");
442 &status("joining $b_blue$chan$ob");
443 if (!$conn->join($chan)) {
444 &DEBUG("joinchan: join failed. trying connect!");
455 next if ($chan eq "");
456 $chan =~ tr/A-Z/a-z/; # lowercase.
458 if ($chan !~ /^$mask{chan}$/) {
459 &WARN("part: chan is invalid ($chan)");
463 &status("parting $chan");
464 if (!&validChan($chan)) {
465 &WARN("part: not on $chan; doing anyway");
469 rawout("PART $chan");
470 # deletion of $channels{chan} is done in &entryEvt().
475 my ($chan, @modes) = @_;
476 my $modes = join(" ", @modes);
478 if (&validChan($chan) == 0) {
479 &ERROR("mode: invalid chan => '$chan'.");
483 &DEBUG("mode: MODE $chan $modes");
485 rawout("MODE $chan $modes");
489 my ($chan, @who) = @_;
490 my $os = "o" x scalar(@who);
492 &mode($chan, "+$os @who");
496 my ($chan, @who) = @_;
497 my $os = "o" x scalar(@who);
499 &mode($chan, "-$os ".@who);
503 my ($nick,$chan,$msg) = @_;
504 my (@chans) = ($chan eq "") ? (keys %channels) : lc($chan);
506 if ($chan ne "" and &validChan($chan) == 0) {
507 &ERROR("kick: invalid channel $chan.");
511 $nick =~ tr/A-Z/a-z/;
513 foreach $chan (@chans) {
514 if (!&IsNickInChan($nick,$chan)) {
515 &status("Kick: $nick is not on $chan.") if (scalar @chans == 1);
519 if (!exists $channels{$chan}{o}{$ident}) {
520 &status("Kick: do not have ops on $chan :(");
524 &status("Kicking $nick from $chan.");
526 &rawout("KICK $chan $nick");
528 &rawout("KICK $chan $nick :$msg");
534 my ($mask,$chan) = @_;
535 my (@chans) = ($chan =~ /^\*?$/) ? (keys %channels) : lc($chan);
538 if ($chan !~ /^\*?$/ and &validChan($chan) == 0) {
539 &ERROR("ban: invalid channel $chan.");
543 foreach $chan (@chans) {
544 if (!exists $channels{$chan}{o}{$ident}) {
545 &status("Ban: do not have ops on $chan :(");
549 &status("Banning $mask from $chan.");
550 &rawout("MODE $chan +b $mask");
558 my ($mask,$chan) = @_;
559 my (@chans) = ($chan =~ /^\*?$/) ? (keys %channels) : lc($chan);
562 &DEBUG("unban: mask = $mask, chan = @chans");
564 foreach $chan (@chans) {
565 if (!exists $channels{$chan}{o}{$ident}) {
566 &status("unBan: do not have ops on $chan :(");
570 &status("Removed ban $mask from $chan.");
571 &rawout("MODE $chan -b $mask");
580 &status("QUIT $param{'ircNick'} has quit IRC ($quitmsg)");
582 $conn->quit($quitmsg);
584 &WARN("quit: could not quit!");
591 if (!defined $nick) {
592 &ERROR("nick: nick == NULL.");
596 if (defined $ident and $nick eq $ident) {
597 &WARN("nick: nick == ident == '$ident'.");
601 $bad++ if (exists $nuh{ $param{'ircNick'} });
602 $bad++ if (&IsNickInAnyChan($param{'ircNick'}));
605 &WARN("Nick: not going to try and get my nick back. [".
606 scalar(localtime). "]");
610 if ($nick =~ /^$mask{nick}$/) {
611 rawout("NICK ".$nick);
613 if (defined $ident) {
614 &status("nick: Changing nick to $nick (from $ident)");
616 &DEBUG("first time nick change.");
622 &DEBUG("nick: failed... why oh why (nick => $nick)");
628 my($who, $chan) = @_;
629 rawout("INVITE $who $chan");
634 # Channel related functions...
637 # Usage: &joinNextChan();
639 if (scalar @joinchan) {
640 $chan = shift @joinchan;
643 if (my $i = scalar @joinchan) {
644 &status("joinNextChan: $i chans to join.");
651 my @c = &getJoinChans();
652 if (exists $cache{joinTime} and scalar @c) {
653 my $delta = time() - $cache{joinTime} - 5;
654 my $timestr = &Time2String($delta);
655 my $rate = sprintf("%.1f", $delta / @c);
656 delete $cache{joinTime};
658 &status("time taken to join all chans: $timestr; rate: $rate sec/join");
661 # chanserv check: global channels, in case we missed one.
662 foreach ( &ChanConfList("chanServ_ops") ) {
667 # Usage: &getNickInChans($nick);
672 foreach (keys %channels) {
673 next unless (grep /^\Q$nick\E$/i, keys %{ $channels{$_}{''} });
680 # Usage: &getNicksInChan($chan);
685 return keys %{ $channels{$chan}{''} };
689 my ($nick,$chan) = @_;
691 $chan =~ tr/A-Z/a-z/; # not lowercase unfortunately.
693 if (&validChan($chan) == 0) {
694 &ERROR("INIC: invalid channel $chan.");
698 if (grep /^\Q$nick\E$/i, keys %{ $channels{$chan}{''} }) {
701 foreach (keys %channels) {
702 next unless (/[A-Z]/);
703 &DEBUG("iNIC: hash channels contains mixed cased chan!!!");
709 sub IsNickInAnyChan {
712 foreach $chan (keys %channels) {
713 next unless (grep /^\Q$nick\E$/i, keys %{ $channels{$chan}{''} });
719 # Usage: &validChan($chan);
721 # todo: use $c instead?
724 if (!defined $chan or $chan =~ /^\s*$/) {
728 if (lc $chan ne $chan) {
729 &WARN("validChan: lc chan != chan. ($chan); fixing.");
730 $chan =~ tr/A-Z/a-z/;
733 # it's possible that this check creates the hash if empty.
734 if (defined $channels{$chan} or exists $channels{$chan}) {
735 if ($chan eq "_default") {
736 # &WARN("validC: chan cannot be _default! returning 0!");
747 # Usage: &delUserInfo($nick,@chans);
749 my ($nick,@chans) = @_;
752 foreach $chan (@chans) {
753 foreach $mode (keys %{ $channels{$chan} }) {
755 next unless (exists $channels{$chan}{$mode}{$nick});
757 delete $channels{$chan}{$mode}{$nick};
765 delete $channels{$chan};
769 &DEBUG("clearIRCVars() called!");
773 @joinchan = &getJoinChans(1);
774 $cache{joinTime} = time();
782 foreach (keys %chanconf) {
783 next if ($_ eq "_default");
785 my $val = $chanconf{$_}{autojoin};
789 $skip++ if ($val eq "0");
804 $str = "channels not auto-joining: @skip (joining: @chans)";
806 $str = "auto-joining all chans: @chans";
809 &status("Chans: ".$str) if ($show);
815 # &DEBUG("closeDCC called.");
817 foreach $type (keys %dcc) {
818 next if ($type ne uc($type));
820 foreach $nick (keys %{ $dcc{$type} }) {
821 next unless (defined $nick);
822 &status("DCC CHAT: closing DCC $type to $nick.");
823 next unless (defined $dcc{$type}{$nick});
825 my $ref = $dcc{$type}{$nick};
826 &dccsay($nick, "bye bye, $nick") if ($type =~ /^chat$/i);
827 $dcc{$type}{$nick}->close();
828 delete $dcc{$type}{$nick};
829 &DEBUG("after close for $nick");
836 my($who,$chan,$userhost) = @_;
838 return unless (&IsChanConf("joinfloodCheck"));
840 if (exists $netsplit{lc $who}) { # netsplit join.
841 &DEBUG("joinfloodCheck: $who was in netsplit; not checking.");
844 if (exists $floodjoin{$chan}{$who}{Time}) {
845 &WARN("floodjoin{$chan}{$who} already exists?");
848 $floodjoin{$chan}{$who}{Time} = time();
849 $floodjoin{$chan}{$who}{Host} = $userhost;
852 foreach (keys %floodjoin) {
854 my $count = scalar keys %{ $floodjoin{$c} };
855 next unless ($count > 5);
856 &DEBUG("joinflood: count => $count");
859 foreach (keys %{ $floodjoin{$c} }) {
860 $time += $floodjoin{$c}{$_}{Time};
862 &DEBUG("joinflood: time => $time");
865 &DEBUG("joinflood: new time => $time");
871 foreach $chan (keys %floodjoin) {
872 foreach $who (keys %{ $floodjoin{$chan} }) {
873 my $t = $floodjoin{$chan}{$who}{Time};
874 next unless (defined $t);
876 my $delta = $time - $t;
877 next unless ($delta > 10);
879 delete $floodjoin{$chan}{$who};
884 &DEBUG("joinfloodCheck: $delete deleted.") if ($delete);
890 if (exists $nuh{$n}) {
891 return &makeHostMask($nuh{$n});
893 $cache{on_who_Hack} = 1;