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source: skype/t/irssi/trigger.pl @ 9c51166

Last change on this file since 9c51166 was 25a7eb8, checked in by Miklos Vajna <vmiklos@…>, at 2009-02-17T23:31:13Z

Initial testcase.

Code is based on ulim's automated live tests.

Property mode set to 100644

File size: 40.6 KB

Rev	Line
[25a7eb8]	1	# trigger.pl - execute a command or replace text, triggered by an event in irssi
	2	# Do /TRIGGER HELP or look at http://wouter.coekaerts.be/irssi/ for help
	3
	4	# Copyright (C) 2002-2006 Wouter Coekaerts <wouter@coekaerts.be>
	5	#
	6	# This program is free software; you can redistribute it and/or modify
	7	# it under the terms of the GNU General Public License as published by
	8	# the Free Software Foundation; either version 2 of the License, or
	9	# (at your option) any later version.
	10	#
	11	# This program is distributed in the hope that it will be useful,
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	# GNU General Public License for more details.
	15	#
	16	# You should have received a copy of the GNU General Public License
	17	# along with this program; if not, write to the Free Software
	18	# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19
	20	use strict;
	21	use Irssi 20020324 qw(command_bind command_runsub command signal_add_first signal_continue signal_stop signal_remove);
	22	use Text::ParseWords;
	23	use IO::File;
	24	use vars qw($VERSION %IRSSI);
	25
	26	$VERSION = '1.0';
	27	%IRSSI = (
	28	authors => 'Wouter Coekaerts',
	29	contact => 'wouter@coekaerts.be',
	30	name => 'trigger',
	31	description => 'execute a command or replace text, triggered by an event in irssi',
	32	license => 'GPLv2 or later',
	33	url => 'http://wouter.coekaerts.be/irssi/',
	34	changed => '$LastChangedDate: 2006-01-23 13:10:19 +0100 (Mon, 23 Jan 2006) $',
	35	);
	36
	37	sub cmd_help {
	38	Irssi::print (<<'SCRIPTHELP_EOF', MSGLEVEL_CLIENTCRAP);
	39
	40	TRIGGER LIST
	41	TRIGGER SAVE
	42	TRIGGER RELOAD
	43	TRIGGER MOVE <number> <number>
	44	TRIGGER DELETE <number>
	45	TRIGGER CHANGE <number> ...
	46	TRIGGER ADD ...
	47
	48	When to match:
	49	On which types of event to trigger:
	50	These are simply specified by -name_of_the_type
	51	The normal IRC event types are:
	52	publics, %\|privmsgs, pubactions, privactions, pubnotices, privnotices, joins, parts, quits, kicks, topics, invites, nick_changes, dcc_msgs, dcc_actions, dcc_ctcps
	53	mode_channel: %\|a mode on the (whole) channel (like +t, +i, +b)
	54	mode_nick: %\|a mode on someone in the channel (like +o, +v)
	55	-all is an alias for all of those.
	56	Additionally, there is:
	57	rawin: %\|raw text incoming from the server
	58	send_command: %\|commands you give to irssi
	59	send_text: %\|lines you type that aren't commands
	60	beep: %\|when irssi beeps
	61	notify_join: %\|someone in you notify list comes online
	62	notify_part: %\|someone in your notify list goes offline
	63	notify_away: %\|someone in your notify list goes away
	64	notify_unaway: %\|someone in your notify list goes unaway
	65	notify_unidle: %\|someone in your notify list stops idling
	66
	67	Filters (conditions) the event has to satisfy. They all take one parameter.
	68	If you can give a list, seperate elements by space and use quotes around the list.
	69	-pattern: %\|The message must match the given pattern. ? and * can be used as wildcards
	70	-regexp: %\|The message must match the given regexp. (see man perlre)
	71	%\|if -nocase is given as an option, the regexp or pattern is matched case insensitive
	72	-tags: %\|The servertag must be in the given list of tags
	73	-channels: %\|The event must be in one of the given list of channels.
	74	Examples: %\|-channels '#chan1 #chan2' or -channels 'IRCNet/#channel'
	75	%\|-channels 'EFNet/' means every channel on EFNet and is the same as -tags 'EFNet'
	76	-masks: %\|The person who triggers it must match one of the given list of masks
	77	-hasmode: %\|The person who triggers it must have the give mode
	78	Examples: %\|'-o' means not opped, '+ov' means opped OR voiced, '-o&-v' means not opped AND not voiced
	79	-hasflag: %\|Only trigger if if friends.pl (friends_shasta.pl) or people.pl is loaded and the person who triggers it has the given flag in the script (same syntax as -hasmode)
	80	-other_masks
	81	-other_hasmode
	82	-other_hasflag: %\|Same as above but for the victim for kicks or mode_nick.
	83
	84	What to do when it matches:
	85	-command: Execute the given Irssi-command
	86	%\|You are able to use $1, $2 and so on generated by your regexp pattern.
	87	%\|For multiple commands ; (or $;) can be used as seperator
	88	%\|The following variables are also expanded:
	89	$T: %\|Server tag
	90	$C: %\|Channel name
	91	$N: %\|Nickname of the person who triggered this command
	92	$A: %\|His address (foo@bar.com),
	93	$I: %\|His ident (foo)
	94	$H: %\|His hostname (bar.com)
	95	$M: %\|The complete message
	96	${other}: %\|The victim for kicks or mode_nick
	97	${mode_type}: %\|The type ('+' or '-') for a mode_channel or mode_nick
	98	${mode_char}: %\|The mode char ('o' for ops, 'b' for ban,...)
	99	${mode_arg} : %\|The argument to the mode (if there is one)
	100	%\|$\X, with X being one of the above expands (e.g. $\M), escapes all non-alphanumeric characters, so it can be used with /eval or /exec. Don't use /eval or /exec without this, it's not safe.
	101
	102	-replace: %\|replaces the matching part with the given replacement in the event (requires a -regexp or -pattern)
	103	-once: %\|remove the trigger if it is triggered, so it only executes once and then is forgotten.
	104	-stop: %\|stops the signal. It won't get displayed by Irssi. Like /IGNORE
	105	-debug: %\|print some debugging info
	106
	107	Other options:
	108	-disabled: %\|Same as removing it, but keeps it in case you might need it later
	109	-name: %\|Give the trigger a name. You can refer to the trigger with this name in add/del/change commands
	110
	111	Examples:
	112	Knockout people who do a !list:
	113	/TRIGGER ADD %\|-publics -channels "#channel1 #channel2" -nocase -regexp ^!list -command "KN $N This is not a warez channel!"
	114	React to !echo commands from people who are +o in your friends-script:
	115	/TRIGGER ADD %\|-publics -regexp '^!echo (.*)' -hasflag '+o' -command 'say echo: $1'
	116	Ignore all non-ops on #channel:
	117	/TRIGGER ADD %\|-publics -actions -channels "#channel" -hasmode '-o' -stop
	118	Send a mail to yourself every time a topic is changed:
	119	/TRIGGER ADD %\|-topics -command 'exec echo $\N changed topic of $\C to: $\M \| mail you@somewhere.com -s topic'
	120
	121
	122	Examples with -replace:
	123	%\|Replace every occurence of shit with sh*t, case insensitive:
	124	/TRIGGER ADD %\|-all -nocase -regexp shit -replace sh*t
	125	%\|Strip all colorcodes from !lamer@:
	126	/TRIGGER ADD %\|-all -masks !lamer@ -regexp '\x03\d?\d?(,\d\d?)?\|\x02\|\x1f\|\x16\|\x06' -replace ''
	127	%\|Never let !bot1@foo.bar or !bot2@foo.bar hilight you
	128	%\|(this works by cutting your nick in 2 different parts, 'myn' and 'ick' here)
	129	%\|you don't need to understand the -replace argument, just trust that it works if the 2 parts separately don't hilight:
	130	/TRIGGER ADD %\|-all masks '!bot1@foo.bar !bot2@foo.bar' -regexp '(myn)(ick)' -nocase -replace '$1\x02\x02$2'
	131	%\|Avoid being hilighted by !top10 in eggdrops with stats.mod (but show your nick in bold):
	132	/TRIGGER ADD %\|-publics -regexp '(Top.0\(.\): 1.)(my)(nick)' -replace '$1\x02$2\x02\x02$3\x02'
	133	%\|Convert a Windows-1252 Euro to an ISO-8859-15 Euro (same effect as euro.pl):
	134	/TRIGGER ADD %\|-regexp '\x80' -replace '\xA4'
	135	%\|Show tabs as spaces, not the inverted I (same effect as tab_stop.pl):
	136	/TRIGGER ADD %\|-all -regexp '\t' -replace ' '
	137	SCRIPTHELP_EOF
	138	} # /
	139
	140	my @triggers; # array of all triggers
	141	my %triggers_by_type; # hash mapping types on triggers of that type
	142	my $recursion_depth = 0;
	143	my $changed_since_last_save = 0;
	144
	145	###############
	146	### formats ###
	147	###############
	148
	149	Irssi::theme_register([
	150	'trigger_header' => 'Triggers:',
	151	'trigger_line' => '%#$[-4]0 $1',
	152	'trigger_added' => 'Trigger $0 added: $1',
	153	'trigger_not_found' => 'Trigger {hilight $0} not found',
	154	'trigger_saved' => 'Triggers saved to $0',
	155	'trigger_loaded' => 'Triggers loaded from $0'
	156	]);
	157
	158	#########################################
	159	### catch the signals & do your thing ###
	160	#########################################
	161
	162	# trigger types with a message and a channel
	163	my @allchanmsg_types = qw(publics pubactions pubnotices pubctcps pubctcpreplies parts quits kicks topics);
	164	# trigger types with a message
	165	my @allmsg_types = (@allchanmsg_types, qw(privmsgs privactions privnotices privctcps privctcpreplies dcc_msgs dcc_actions dcc_ctcps));
	166	# trigger types with a channel
	167	my @allchan_types = (@allchanmsg_types, qw(mode_channel mode_nick joins invites));
	168	# trigger types in -all
	169	my @all_types = (@allmsg_types, qw(mode_channel mode_nick joins invites nick_changes));
	170	# trigger types with a server
	171	my @all_server_types = (@all_types, qw(rawin notify_join notify_part notify_away notify_unaway notify_unidle));
	172	# all trigger types
	173	my @trigger_types = (@all_server_types, qw(send_command send_text beep));
	174	#trigger types that are not in -all
	175	#my @notall_types = grep {my $a=$_; return (!grep {$_ eq $a} @all_types);} @trigger_types;
	176	my @notall_types = qw(rawin notify_join notify_part notify_away notify_unaway notify_unidle send_command send_text beep);
	177
	178	my @signals = (
	179	# "message public", SERVER_REC, char msg, char nick, char address, char target
	180	{
	181	'types' => ['publics'],
	182	'signal' => 'message public',
	183	'sub' => sub {check_signal_message(\@_,1,$_[0],$_[4],$_[2],$_[3],'publics');},
	184	},
	185	# "message private", SERVER_REC, char msg, char nick, char *address
	186	{
	187	'types' => ['privmsgs'],
	188	'signal' => 'message private',
	189	'sub' => sub {check_signal_message(\@_,1,$_[0],undef,$_[2],$_[3],'privmsgs');},
	190	},
	191	# "message irc action", SERVER_REC, char msg, char nick, char address, char target
	192	{
	193	'types' => ['privactions','pubactions'],
	194	'signal' => 'message irc action',
	195	'sub' => sub {
	196	if ($_[4] eq $_[0]->{nick}) {
	197	check_signal_message(\@_,1,$_[0],undef,$_[2],$_[3],'privactions');
	198	} else {
	199	check_signal_message(\@_,1,$_[0],$_[4],$_[2],$_[3],'pubactions');
	200	}
	201	},
	202	},
	203	# "message irc notice", SERVER_REC, char msg, char nick, char address, char target
	204	{
	205	'types' => ['privnotices','pubnotices'],
	206	'signal' => 'message irc notice',
	207	'sub' => sub {
	208	if ($_[4] eq $_[0]->{nick}) {
	209	check_signal_message(\@_,1,$_[0],undef,$_[2],$_[3],'privnotices');
	210	} else {
	211	check_signal_message(\@_,1,$_[0],$_[4],$_[2],$_[3],'pubnotices');
	212	}
	213	}
	214	},
	215	# "message join", SERVER_REC, char channel, char nick, char *address
	216	{
	217	'types' => ['joins'],
	218	'signal' => 'message join',
	219	'sub' => sub {check_signal_message(\@_,-1,$_[0],$_[1],$_[2],$_[3],'joins');}
	220	},
	221	# "message part", SERVER_REC, char channel, char nick, char address, char reason
	222	{
	223	'types' => ['parts'],
	224	'signal' => 'message part',
	225	'sub' => sub {check_signal_message(\@_,4,$_[0],$_[1],$_[2],$_[3],'parts');}
	226	},
	227	# "message quit", SERVER_REC, char nick, char address, char *reason
	228	{
	229	'types' => ['quits'],
	230	'signal' => 'message quit',
	231	'sub' => sub {check_signal_message(\@_,3,$_[0],undef,$_[1],$_[2],'quits');}
	232	},
	233	# "message kick", SERVER_REC, char channel, char nick, char kicker, char address, char *reason
	234	{
	235	'types' => ['kicks'],
	236	'signal' => 'message kick',
	237	'sub' => sub {check_signal_message(\@_,5,$_[0],$_[1],$_[3],$_[4],'kicks',{'other'=>$_[2]});}
	238	},
	239	# "message topic", SERVER_REC, char channel, char topic, char nick, char address
	240	{
	241	'types' => ['topics'],
	242	'signal' => 'message topic',
	243	'sub' => sub {check_signal_message(\@_,2,$_[0],$_[1],$_[3],$_[4],'topics');}
	244	},
	245	# "message invite", SERVER_REC, char channel, char nick, char *address
	246	{
	247	'types' => ['invites'],
	248	'signal' => 'message invite',
	249	'sub' => sub {check_signal_message(\@_,-1,$_[0],$_[1],$_[2],$_[3],'invites');}
	250	},
	251	# "message nick", SERVER_REC, char newnick, char oldnick, char *address
	252	{
	253	'types' => ['nick_changes'],
	254	'signal' => 'message nick',
	255	'sub' => sub {check_signal_message(\@_,-1,$_[0],undef,$_[1],$_[3],'nick_changes');}
	256	},
	257	# "message dcc", DCC_REC dcc, char msg
	258	{
	259	'types' => ['dcc_msgs'],
	260	'signal' => 'message dcc',
	261	'sub' => sub {check_signal_message(\@_,1,$_[0]->{'server'},undef,$_[0]->{'nick'},undef,'dcc_msgs');
	262	}
	263	},
	264	# "message dcc action", DCC_REC dcc, char msg
	265	{
	266	'types' => ['dcc_actions'],
	267	'signal' => 'message dcc action',
	268	'sub' => sub {check_signal_message(\@_,1,$_[0]->{'server'},undef,$_[0]->{'nick'},undef,'dcc_actions');}
	269	},
	270	# "message dcc ctcp", DCC_REC dcc, char cmd, char *data
	271	{
	272	'types' => ['dcc_ctcps'],
	273	'signal' => 'message dcc ctcp',
	274	'sub' => sub {check_signal_message(\@_,1,$_[0]->{'server'},undef,$_[0]->{'nick'},undef,'dcc_ctcps');}
	275	},
	276	# "server incoming", SERVER_REC, char *data
	277	{
	278	'types' => ['rawin'],
	279	'signal' => 'server incoming',
	280	'sub' => sub {check_signal_message(\@_,1,$_[0],undef,undef,undef,'rawin');}
	281	},
	282	# "send command", char *args, SERVER_REC, WI_ITEM_REC
	283	{
	284	'types' => ['send_command'],
	285	'signal' => 'send command',
	286	'sub' => sub {
	287	sig_send_text_or_command(\@_,1);
	288	}
	289	},
	290	# "send text", char *line, SERVER_REC, WI_ITEM_REC
	291	{
	292	'types' => ['send_text'],
	293	'signal' => 'send text',
	294	'sub' => sub {
	295	sig_send_text_or_command(\@_,0);
	296	}
	297	},
	298	# "beep"
	299	{
	300	'types' => ['beep'],
	301	'signal' => 'beep',
	302	'sub' => sub {check_signal_message(\@_,-1,undef,undef,undef,undef,'beep');}
	303	},
	304	# "event "<cmd>, SERVER_REC, char args, char sender_nick, char *sender_address
	305	{
	306	'types' => ['mode_channel', 'mode_nick'],
	307	'signal' => 'event mode',
	308	'sub' => sub {
	309	my ($server, $event_args, $nickname, $address) = @_;
	310	my ($target, $modes, $modeargs) = split(/ /, $event_args, 3);
	311	return if (!$server->ischannel($target));
	312	my (@modeargs) = split(/ /,$modeargs);
	313	my ($pos, $type, $event_type, $arg) = (0, '+');
	314	foreach my $char (split(//,$modes)) {
	315	if ($char eq "+" \|\| $char eq "-") {
	316	$type = $char;
	317	} else {
	318	if ($char =~ /[Oovh]/) { # mode_nick
	319	$event_type = 'mode_nick';
	320	$arg = $modeargs[$pos++];
	321	} elsif ($char =~ /[beIqdk]/ \|\| ( $char =~ /[lfJ]/ && $type eq '+')) { # chan_mode with arg
	322	$event_type = 'mode_channel';
	323	$arg = $modeargs[$pos++];
	324	} else { # chan_mode without arg
	325	$event_type = 'mode_channel';
	326	$arg = undef;
	327	}
	328	check_signal_message(\@_,-1,$server,$target,$nickname,$address,$event_type,{
	329	'mode_type' => $type,
	330	'mode_char' => $char,
	331	'mode_arg' => $arg,
	332	'other' => ($event_type eq 'mode_nick') ? $arg : undef
	333	});
	334	}
	335	}
	336	}
	337	},
	338	# "notifylist joined", SERVER_REC, char nick, char user, char host, char realname, char *awaymsg
	339	{
	340	'types' => ['notify_join'],
	341	'signal' => 'notifylist joined',
	342	'sub' => sub {check_signal_message(\@_, 5, $_[0], undef, $_[1], $_[2].'@'.$_[3], 'notify_join', {'realname' => $_[4]});}
	343	},
	344	{
	345	'types' => ['notify_part'],
	346	'signal' => 'notifylist left',
	347	'sub' => sub {check_signal_message(\@_, 5, $_[0], undef, $_[1], $_[2].'@'.$_[3], 'notify_left', {'realname' => $_[4]});}
	348	},
	349	{
	350	'types' => ['notify_unidle'],
	351	'signal' => 'notifylist unidle',
	352	'sub' => sub {check_signal_message(\@_, 5, $_[0], undef, $_[1], $_[2].'@'.$_[3], 'notify_unidle', {'realname' => $_[4]});}
	353	},
	354	{
	355	'types' => ['notify_away', 'notify_unaway'],
	356	'signal' => 'notifylist away changed',
	357	'sub' => sub {check_signal_message(\@_, 5, $_[0], undef, $_[1], $_[2].'@'.$_[3], ($_[5] ? 'notify_away' : 'notify_unaway'), {'realname' => $_[4]});}
	358	},
	359	# "ctcp msg", SERVER_REC, char args, char nick, char addr, char target
	360	{
	361	'types' => ['pubctcps', 'privctcps'],
	362	'signal' => 'ctcp msg',
	363	'sub' => sub {
	364	my ($server, $args, $nick, $addr, $target) = @_;
	365	if ($target eq $server->{'nick'}) {
	366	check_signal_message(\@_, 1, $server, undef, $nick, $addr, 'privctcps');
	367	} else {
	368	check_signal_message(\@_, 1, $server, $target, $nick, $addr, 'pubctcps');
	369	}
	370	}
	371	},
	372	# "ctcp reply", SERVER_REC, char args, char nick, char addr, char target
	373	{
	374	'types' => ['pubctcpreplies', 'privctcpreplies'],
	375	'signal' => 'ctcp reply',
	376	'sub' => sub {
	377	my ($server, $args, $nick, $addr, $target) = @_;
	378	if ($target eq $server->{'nick'}) {
	379	check_signal_message(\@_, 1, $server, undef, $nick, $addr, 'privctcps');
	380	} else {
	381	check_signal_message(\@_, 1, $server, $target, $nick, $addr, 'pubctcps');
	382	}
	383	}
	384	}
	385	);
	386
	387	sub sig_send_text_or_command {
	388	my ($signal, $iscommand) = @_;
	389	my ($line, $server, $item) = @$signal;
	390	my ($channelname,$nickname,$address) = (undef,undef,undef);
	391	if ($item && (ref($item) eq 'Irssi::Irc::Channel' \|\| ref($item) eq 'Irssi::Silc::Channel')) {
	392	$channelname = $item->{'name'};
	393	} elsif ($item && ref($item) eq 'Irssi::Irc::Query') { # TODO Silc query ?
	394	$nickname = $item->{'name'};
	395	$address = $item->{'address'}
	396	}
	397	# TODO pass context also for non-channels (queries and other stuff)
	398	check_signal_message($signal,0,$server,$channelname,$nickname,$address,$iscommand ? 'send_command' : 'send_text');
	399
	400	}
	401
	402	my %filters = (
	403	'tags' => {
	404	'types' => \@all_server_types,
	405	'sub' => sub {
	406	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	407
	408	if (!defined($server)) {
	409	return 0;
	410	}
	411	my $matches = 0;
	412	foreach my $tag (split(/ /,$param)) {
	413	if (lc($server->{'tag'}) eq lc($tag)) {
	414	$matches = 1;
	415	last;
	416	}
	417	}
	418	return $matches;
	419	}
	420	},
	421	'channels' => {
	422	'types' => \@allchan_types,
	423	'sub' => sub {
	424	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	425
	426	if (!defined($channelname) \|\| !defined($server)) {
	427	return 0;
	428	}
	429	my $matches = 0;
	430	foreach my $trigger_channel (split(/ /,$param)) {
	431	if (lc($channelname) eq lc($trigger_channel)
	432	\|\| lc($server->{'tag'}.'/'.$channelname) eq lc($trigger_channel)
	433	\|\| lc($server->{'tag'}.'/') eq lc($trigger_channel)) {
	434	$matches = 1;
	435	last; # this channel matches, stop checking channels
	436	}
	437	}
	438	return $matches;
	439	}
	440	},
	441	'masks' => {
	442	'types' => \@all_types,
	443	'sub' => sub {
	444	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	445	return (defined($nickname) && defined($address) && defined($server) && $server->masks_match($param, $nickname, $address));
	446	}
	447	},
	448	'other_masks' => {
	449	'types' => ['kicks', 'mode_nick'],
	450	'sub' => sub {
	451	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	452	return 0 unless defined($extra->{'other'});
	453	my $other_address = get_address($extra->{'other'}, $server, $channelname);
	454	return defined($other_address) && $server->masks_match($param, $extra->{'other'}, $other_address);
	455	}
	456	},
	457	'hasmode' => {
	458	'types' => \@all_types,
	459	'sub' => sub {
	460	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	461	return hasmode($param, $nickname, $server, $channelname);
	462	}
	463	},
	464	'other_hasmode' => {
	465	'types' => ['kicks', 'mode_nick'],
	466	'sub' => sub {
	467	my ($param,$signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	468	return defined($extra->{'other'}) && hasmode($param, $extra->{'other'}, $server, $channelname);
	469	}
	470	},
	471	'hasflag' => {
	472	'types' => \@all_types,
	473	'sub' => sub {
	474	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	475	return 0 unless defined($nickname) && defined($address) && defined($server);
	476	my $flags = get_flags ($server->{'chatnet'},$channelname,$nickname,$address);
	477	return defined($flags) && check_modes($flags,$param);
	478	}
	479	},
	480	'other_hasflag' => {
	481	'types' => ['kicks', 'mode_nick'],
	482	'sub' => sub {
	483	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	484	return 0 unless defined($extra->{'other'});
	485	my $other_address = get_address($extra->{'other'}, $server, $channelname);
	486	return 0 unless defined($other_address);
	487	my $flags = get_flags ($server->{'chatnet'},$channelname,$extra->{'other'},$other_address);
	488	return defined($flags) && check_modes($flags,$param);
	489	}
	490	},
	491	'mode_type' => {
	492	'types' => ['mode_channel', 'mode_nick'],
	493	'sub' => sub {
	494	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	495	return (($param) eq $extra->{'mode_type'});
	496	}
	497	},
	498	'mode_char' => {
	499	'types' => ['mode_channel', 'mode_nick'],
	500	'sub' => sub {
	501	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	502	return (($param) eq $extra->{'mode_char'});
	503	}
	504	},
	505	'mode_arg' => {
	506	'types' => ['mode_channel', 'mode_nick'],
	507	'sub' => sub {
	508	my ($param, $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra) = @_;
	509	return (($param) eq $extra->{'mode_arg'});
	510	}
	511	}
	512	);
	513
	514	sub get_address {
	515	my ($nick, $server, $channel) = @_;
	516	my $nickrec = get_nickrec($nick, $server, $channel);
	517	return $nickrec ? $nickrec->{'host'} : undef;
	518	}
	519	sub get_nickrec {
	520	my ($nick, $server, $channel) = @_;
	521	return unless defined($server) && defined($channel) && defined($nick);
	522	my $chanrec = $server->channel_find($channel);
	523	return $chanrec ? $chanrec->nick_find($nick) : undef;
	524	}
	525
	526	sub hasmode {
	527	my ($param, $nickname, $server, $channelname) = @_;
	528	my $nickrec = get_nickrec($nickname, $server, $channelname);
	529	return 0 unless defined $nickrec;
	530	my $modes =
	531	($nickrec->{'op'} ? 'o' : '')
	532	. ($nickrec->{'voice'} ? 'v' : '')
	533	. ($nickrec->{'halfop'} ? 'h' : '')
	534	;
	535	return check_modes($modes, $param);
	536	}
	537
	538	# list of all switches
	539	my @trigger_switches = (@trigger_types, qw(all nocase stop once debug disabled));
	540	# parameters (with an argument)
	541	my @trigger_params = qw(pattern regexp command replace name);
	542	# list of all options (including switches) for /TRIGGER ADD
	543	my @trigger_add_options = (@trigger_switches, @trigger_params, keys(%filters));
	544	# same for /TRIGGER CHANGE, this includes the -no<option>'s
	545	my @trigger_options = map(($_,'no'.$_) ,@trigger_add_options);
	546
	547	# check the triggers on $signal's $parammessage parameter, for triggers with $condition set
	548	# on $server in $channelname, for $nickname!$address
	549	# set $parammessage to -1 if the signal doesn't have a message
	550	# for signal without channel, nick or address, set to undef
	551	sub check_signal_message {
	552	my ($signal, $parammessage, $server, $channelname, $nickname, $address, $condition, $extra) = @_;
	553	my ($changed, $stopped, $context, $need_rebuild);
	554	my $message = ($parammessage == -1) ? '' : $signal->[$parammessage];
	555
	556	return if (!$triggers_by_type{$condition});
	557
	558	if ($recursion_depth > 10) {
	559	Irssi::print("Trigger error: Maximum recursion depth reached, aborting trigger.", MSGLEVEL_CLIENTERROR);
	560	return;
	561	}
	562	$recursion_depth++;
	563
	564	TRIGGER:
	565	foreach my $trigger (@{$triggers_by_type{$condition}}) {
	566	# check filters
	567	foreach my $trigfilter (@{$trigger->{'filters'}}) {
	568	if (! ($trigfilter->[2]($trigfilter->[1], $signal,$parammessage,$server,$channelname,$nickname,$address,$condition,$extra))) {
	569
	570	next TRIGGER;
	571	}
	572	}
	573
	574	# check regexp (and keep matches in @- and @+, so don't make a this a {block})
	575	next if ($trigger->{'compregexp'} && ($parammessage == -1 \|\| $message !~ m/$trigger->{'compregexp'}/));
	576
	577	# if we got this far, it fully matched, and we need to do the replace/command/stop/once
	578	my $expands = $extra;
	579	$expands->{'M'} = $message,;
	580	$expands->{'T'} = (defined($server)) ? $server->{'tag'} : '';
	581	$expands->{'C'} = $channelname;
	582	$expands->{'N'} = $nickname;
	583	$expands->{'A'} = $address;
	584	$expands->{'I'} = ((!defined($address)) ? '' : substr($address,0,index($address,'@')));
	585	$expands->{'H'} = ((!defined($address)) ? '' : substr($address,index($address,'@')+1));
	586	$expands->{'$'} = '$';
	587	$expands->{';'} = ';';
	588
	589	if (defined($trigger->{'replace'})) { # it's a -replace
	590	$message =~ s/$trigger->{'compregexp'}/do_expands($trigger->{'compreplace'},$expands,$message)/ge;
	591	$changed = 1;
	592	}
	593
	594	if ($trigger->{'command'}) { # it's a (nonempty) -command
	595	my $command = $trigger->{'command'};
	596	# $1 = the stuff behind the $ we want to expand: a number, or a character from %expands
	597	$command = do_expands($command, $expands, $message);
	598
	599	if (defined($server)) {
	600	if (defined($channelname) && $server->channel_find($channelname)) {
	601	$context = $server->channel_find($channelname);
	602	} else {
	603	$context = $server;
	604	}
	605	} else {
	606	$context = undef;
	607	}
	608
	609	if (defined($context)) {
	610	$context->command("eval $command");
	611	} else {
	612	Irssi::command("eval $command");
	613	}
	614	}
	615
	616	if ($trigger->{'debug'}) {
	617	print("DEBUG: trigger $condition pmesg=$parammessage message=$message server=$server->{tag} channel=$channelname nick=$nickname address=$address " . join(' ',map {$_ . '=' . $extra->{$_}} keys(%$extra)));
	618	}
	619
	620	if ($trigger->{'stop'}) {
	621	$stopped = 1;
	622	}
	623
	624	if ($trigger->{'once'}) {
	625	# find this trigger in the real trigger list, and remove it
	626	for (my $realindex=0; $realindex < scalar(@triggers); $realindex++) {
	627	if ($triggers[$realindex] == $trigger) {
	628	splice (@triggers,$realindex,1);
	629	last;
	630	}
	631	}
	632	$need_rebuild = 1;
	633	}
	634	}
	635
	636	if ($need_rebuild) {
	637	rebuild();
	638	$changed_since_last_save = 1;
	639	}
	640	if ($stopped) { # stopped with -stop
	641	signal_stop();
	642	} elsif ($changed) { # changed with -replace
	643	$signal->[$parammessage] = $message;
	644	signal_continue(@$signal);
	645	}
	646	$recursion_depth--;
	647	}
	648
	649	# used in check_signal_message to expand $'s
	650	# $inthis is a string that can contain $ stuff (like 'foo$1bar$N')
	651	sub do_expands {
	652	my ($inthis, $expands, $from) = @_;
	653	# @+ and @- are copied because there are two s/// nested, and the inner needs the $1 and $2,... of the outer one
	654	my @plus = @+;
	655	my @min = @-;
	656	my $p = \@plus; my $m = \@min;
	657	$inthis =~ s/\$(\\(\d+\|[^0-9x{]\|x[0-9a-fA-F][0-9a-fA-F]\|{.?}))/expand_and_escape($1,$expands,$m,$p,$from)/ge;
	658	return $inthis;
	659	}
	660
	661	# \ $ and ; need extra escaping because we use eval
	662	sub expand_and_escape {
	663	my $retval = expand(@_);
	664	$retval =~ s/([\\\$;])/\\\1/g;
	665	return $retval;
	666	}
	667
	668	# used in do_expands (via expand_and_escape), to_expand is the part after the $
	669	sub expand {
	670	my ($to_expand, $expands, $min, $plus, $from) = @_;
	671	if ($to_expand =~ /^\d+$/) { # a number => look up in $vars
	672	# from man perlvar:
	673	# $3 is the same as "substr $var, $-[3], $+[3] - $-[3])"
	674	return ($to_expand > @{$min} ? '' : substr($from,$min->[$to_expand],$plus->[$to_expand]-$min->[$to_expand]));
	675	} elsif ($to_expand =~ s/^\\//) { # begins with \, so strip that from to_expand
	676	my $exp = expand($to_expand,$expands,$min,$plus,$from); # first expand without \
	677	$exp =~ s/([^a-zA-Z0-9])/\\\1/g; # escape non-word chars
	678	return $exp;
	679	} elsif ($to_expand =~ /^x([0-9a-fA-F]{2})/) { # $xAA
	680	return chr(hex($1));
	681	} elsif ($to_expand =~ /^{(.*?)}$/) { # ${foo}
	682	return expand($1, $expands, $min, $plus, $from);
	683	} else { # look up in $expands
	684	return $expands->{$to_expand};
	685	}
	686	}
	687
	688	sub check_modes {
	689	my ($has_modes, $need_modes) = @_;
	690	my $matches;
	691	my $switch = 1; # if a '-' if found, will be 0 (meaning the modes should not be set)
	692	foreach my $need_mode (split /&/, $need_modes) {
	693	$matches = 0;
	694	foreach my $char (split //, $need_mode) {
	695	if ($char eq '-') {
	696	$switch = 0;
	697	} elsif ($char eq '+') {
	698	$switch = 1;
	699	} elsif ((index($has_modes, $char) != -1) == $switch) {
	700	$matches = 1;
	701	last;
	702	}
	703	}
	704	if (!$matches) {
	705	return 0;
	706	}
	707	}
	708	return 1;
	709	}
	710
	711	# get someones flags from people.pl or friends(_shasta).pl
	712	sub get_flags {
	713	my ($chatnet, $channel, $nick, $address) = @_;
	714	my $flags;
	715	no strict 'refs';
	716	if (defined %{ 'Irssi::Script::people::' }) {
	717	if (defined ($channel)) {
	718	$flags = (&{ 'Irssi::Script::people::find_local_flags' }($chatnet,$channel,$nick,$address));
	719	} else {
	720	$flags = (&{ 'Irssi::Script::people::find_global_flags' }($chatnet,$nick,$address));
	721	}
	722	$flags = join('',keys(%{$flags}));
	723	} else {
	724	my $shasta;
	725	if (defined %{ 'Irssi::Script::friends_shasta::' }) {
	726	$shasta = 'friends_shasta';
	727	} elsif (defined &{ 'Irssi::Script::friends::get_idx' }) {
	728	$shasta = 'friends';
	729	} else {
	730	return undef;
	731	}
	732	my $idx = (&{ 'Irssi::Script::'.$shasta.'::get_idx' }($nick, $address));
	733	if ($idx == -1) {
	734	return '';
	735	}
	736	$flags = (&{ 'Irssi::Script::'.$shasta.'::get_friends_flags' }($idx,undef));
	737	if ($channel) {
	738	$flags .= (&{ 'Irssi::Script::'.$shasta.'::get_friends_flags' }($idx,$channel));
	739	}
	740	}
	741	return $flags;
	742	}
	743
	744	########################################################
	745	### internal stuff called by manage, needed by above ###
	746	########################################################
	747
	748	my %mask_to_regexp = ();
	749	foreach my $i (0..255) {
	750	my $ch = chr $i;
	751	$mask_to_regexp{$ch} = "\Q$ch\E";
	752	}
	753	$mask_to_regexp{'?'} = '(.)';
	754	$mask_to_regexp{''} = '(.)';
	755
	756	sub compile_trigger {
	757	my ($trigger) = @_;
	758	my $regexp;
	759
	760	if ($trigger->{'regexp'}) {
	761	$regexp = $trigger->{'regexp'};
	762	} elsif ($trigger->{'pattern'}) {
	763	$regexp = $trigger->{'pattern'};
	764	$regexp =~ s/(.)/$mask_to_regexp{$1}/g;
	765	} else {
	766	delete $trigger->{'compregexp'};
	767	return;
	768	}
	769
	770	if ($trigger->{'nocase'}) {
	771	$regexp = '(?i)' . $regexp;
	772	}
	773
	774	$trigger->{'compregexp'} = qr/$regexp/;
	775
	776	if(defined($trigger->{'replace'})) {
	777	(my $replace = $trigger->{'replace'}) =~ s/\$/\$\$/g;
	778	$trigger->{'compreplace'} = Irssi::parse_special($replace);
	779	}
	780	}
	781
	782	# rebuilds triggers_by_type and updates signal binds
	783	sub rebuild {
	784	%triggers_by_type = ();
	785	foreach my $trigger (@triggers) {
	786	if (!$trigger->{'disabled'}) {
	787	if ($trigger->{'all'}) {
	788	# -all is an alias for all types in @all_types for which the filters can apply
	789	ALLTYPES:
	790	foreach my $type (@all_types) {
	791	# check if all filters can apply to $type
	792	foreach my $filter (@{$trigger->{'filters'}}) {
	793	if (! grep {$_ eq $type} $filters{$filter->[0]}->{'types'}) {
	794	next ALLTYPES;
	795	}
	796	}
	797	push @{$triggers_by_type{$type}}, ($trigger);
	798	}
	799	}
	800
	801	foreach my $type ($trigger->{'all'} ? @notall_types : @trigger_types) {
	802	if ($trigger->{$type}) {
	803	push @{$triggers_by_type{$type}}, ($trigger);
	804	}
	805	}
	806	}
	807	}
	808
	809	foreach my $signal (@signals) {
	810	my $should_bind = 0;
	811	foreach my $type (@{$signal->{'types'}}) {
	812	if (defined($triggers_by_type{$type})) {
	813	$should_bind = 1;
	814	}
	815	}
	816	if ($should_bind && !$signal->{'bind'}) {
	817	signal_add_first($signal->{'signal'}, $signal->{'sub'});
	818	$signal->{'bind'} = 1;
	819	} elsif (!$should_bind && $signal->{'bind'}) {
	820	signal_remove($signal->{'signal'}, $signal->{'sub'});
	821	$signal->{'bind'} = 0;
	822	}
	823	}
	824	}
	825
	826	################################
	827	### manage the triggers-list ###
	828	################################
	829
	830	my $trigger_file; # cached setting
	831
	832	sub sig_setup_changed {
	833	$trigger_file = Irssi::settings_get_str('trigger_file');
	834	}
	835
	836	sub autosave {
	837	cmd_save() if ($changed_since_last_save);
	838	}
	839
	840	# TRIGGER SAVE
	841	sub cmd_save {
	842	my $io = new IO::File $trigger_file, "w";
	843	if (defined $io) {
	844	$io->print("#Triggers file version $VERSION\n");
	845	foreach my $trigger (@triggers) {
	846	$io->print(to_string($trigger) . "\n");
	847	}
	848	$io->close;
	849	}
	850	Irssi::printformat(MSGLEVEL_CLIENTNOTICE, 'trigger_saved', $trigger_file);
	851	$changed_since_last_save = 0;
	852	}
	853
	854	# save on unload
	855	sub UNLOAD {
	856	cmd_save();
	857	}
	858
	859	# TRIGGER LOAD
	860	sub cmd_load {
	861	sig_setup_changed(); # make sure we've read the trigger_file setting
	862	my $converted = 0;
	863	my $io = new IO::File $trigger_file, "r";
	864	if (not defined $io) {
	865	if (-e $trigger_file) {
	866	Irssi::print("Error opening triggers file", MSGLEVEL_CLIENTERROR);
	867	}
	868	return;
	869	}
	870	if (defined $io) {
	871	@triggers = ();
	872	my $text;
	873	$text = $io->getline;
	874	my $file_version = '';
	875	if ($text =~ /^#Triggers file version (.*)\n/) {
	876	$file_version = $1;
	877	}
	878	if ($file_version lt '0.6.1+2') {
	879	no strict 'vars';
	880	$text .= $_ foreach ($io->getlines);
	881	my $rep = eval "$text";
	882	if (! ref $rep) {
	883	Irssi::print("Error in triggers file");
	884	return;
	885	}
	886	my @old_triggers = @$rep;
	887
	888	for (my $index=0;$index < scalar(@old_triggers);$index++) {
	889	my $trigger = $old_triggers[$index];
	890
	891	if ($file_version lt '0.6.1') {
	892	# convert old names: notices => pubnotices, actions => pubactions
	893	foreach $oldname ('notices','actions') {
	894	if ($trigger->{$oldname}) {
	895	delete $trigger->{$oldname};
	896	$trigger->{'pub'.$oldname} = 1;
	897	$converted = 1;
	898	}
	899	}
	900	}
	901	if ($file_version lt '0.6.1+1' && $trigger->{'modifiers'}) {
	902	if ($trigger->{'modifiers'} =~ /i/) {
	903	$trigger->{'nocase'} = 1;
	904	Irssi::print("Trigger: trigger ".($index+1)." had 'i' in it's modifiers, it has been converted to -nocase");
	905	}
	906	if ($trigger->{'modifiers'} !~ /^[ig]*$/) {
	907	Irssi::print("Trigger: trigger ".($index+1)." had unrecognised modifier '". $trigger->{'modifiers'} ."', which couldn't be converted.");
	908	}
	909	delete $trigger->{'modifiers'};
	910	$converted = 1;
	911	}
	912
	913	if (defined($trigger->{'replace'}) && ! $trigger->{'regexp'}) {
	914	Irssi::print("Trigger: trigger ".($index+1)." had -replace but no -regexp, removed it");
	915	splice (@old_triggers,$index,1);
	916	$index--; # nr of next trigger now is the same as this one was
	917	}
	918
	919	# convert to text with compat, and then to new trigger hash
	920	$text = to_string($trigger,1);
	921	my @args = &shellwords($text . ' a');
	922	my $trigger = parse_options({},@args);
	923	if ($trigger) {
	924	push @triggers, $trigger;
	925	}
	926	}
	927	} else { # new format
	928	while ( $text = $io->getline ) {
	929	chop($text);
	930	my @args = &shellwords($text . ' a');
	931	my $trigger = parse_options({},@args);
	932	if ($trigger) {
	933	push @triggers, $trigger;
	934	}
	935	}
	936	}
	937	}
	938	Irssi::printformat(MSGLEVEL_CLIENTNOTICE, 'trigger_loaded', $trigger_file);
	939	if ($converted) {
	940	Irssi::print("Trigger: Triggers file will be in new format next time it's saved.");
	941	}
	942	rebuild();
	943	}
	944
	945	# escape for printing with to_string
	946	# <<abcdef>> => << 'abcdef' >>
	947	# <<abc'def>> => << "abc'def" >>
	948	# <<abc'def\x02>> => << 'abc'\''def\x02' >>
	949	sub param_to_string {
	950	my ($text) = @_;
	951	# avoid ugly escaping if we can use "-quotes without other escaping (no " or \)
	952	if ($text =~ /^[^"\\]*'[^"\\]$/) {
	953	return ' "' . $text . '" ';
	954	}
	955	# "'" signs without a (odd number of) \ in front of them, need be to escaped as '\''
	956	# this is ugly :(
	957	$text =~ s/(^\|[^\\](\\\\)*)'/$1'\\''/g;
	958	return " '$text' ";
	959	}
	960
	961	# converts a trigger back to "-switch -options 'foo'" form
	962	# if $compat, $trigger is in the old format (used to convert)
	963	sub to_string {
	964	my ($trigger, $compat) = @_;
	965	my $string;
	966
	967	foreach my $switch (@trigger_switches) {
	968	if ($trigger->{$switch}) {
	969	$string .= '-'.$switch.' ';
	970	}
	971	}
	972
	973	if ($compat) {
	974	foreach my $filter (keys(%filters)) {
	975	if ($trigger->{$filter}) {
	976	$string .= '-' . $filter . param_to_string($trigger->{$filter});
	977	}
	978	}
	979	} else {
	980	foreach my $trigfilter (@{$trigger->{'filters'}}) {
	981	$string .= '-' . $trigfilter->[0] . param_to_string($trigfilter->[1]);
	982	}
	983	}
	984
	985	foreach my $param (@trigger_params) {
	986	if ($trigger->{$param} \|\| ($param eq 'replace' && defined($trigger->{'replace'}))) {
	987	$string .= '-' . $param . param_to_string($trigger->{$param});
	988	}
	989	}
	990	return $string;
	991	}
	992
	993	# find a trigger (for REPLACE and DELETE), returns index of trigger, or -1 if not found
	994	sub find_trigger {
	995	my ($data) = @_;
	996	if ($data =~ /^[0-9]*$/ and defined($triggers[$data-1])) {
	997	return $data-1;
	998	} else {
	999	for (my $i=0; $i < scalar(@triggers); $i++) {
	1000	if ($triggers[$i]->{'name'} eq $data) {
	1001	return $i;
	1002	}
	1003	}
	1004	}
	1005	Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'trigger_not_found', $data);
	1006	return -1; # not found
	1007	}
	1008
	1009
	1010	# TRIGGER ADD <options>
	1011	sub cmd_add {
	1012	my ($data, $server, $item) = @_;
	1013	my @args = shellwords($data . ' a');
	1014
	1015	my $trigger = parse_options({}, @args);
	1016	if ($trigger) {
	1017	push @triggers, $trigger;
	1018	Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'trigger_added', scalar(@triggers), to_string($trigger));
	1019	rebuild();
	1020	$changed_since_last_save = 1;
	1021	}
	1022	}
	1023
	1024	# TRIGGER CHANGE <nr> <options>
	1025	sub cmd_change {
	1026	my ($data, $server, $item) = @_;
	1027	my @args = shellwords($data . ' a');
	1028	my $index = find_trigger(shift @args);
	1029	if ($index != -1) {
	1030	if(parse_options($triggers[$index], @args)) {
	1031	Irssi::print("Trigger " . ($index+1) ." changed to: ". to_string($triggers[$index]));
	1032	}
	1033	rebuild();
	1034	$changed_since_last_save = 1;
	1035	}
	1036	}
	1037
	1038	# parses options for TRIGGER ADD and TRIGGER CHANGE
	1039	# if invalid args returns undef, else changes $thetrigger and returns it
	1040	sub parse_options {
	1041	my ($thetrigger,@args) = @_;
	1042	my ($trigger, $option);
	1043
	1044	if (pop(@args) ne 'a') {
	1045	Irssi::print("Syntax error, probably missing a closing quote", MSGLEVEL_CLIENTERROR);
	1046	return undef;
	1047	}
	1048
	1049	%$trigger = %$thetrigger; # make a copy to prevent changing the given trigger if args doesn't parse
	1050	ARGS: for (my $arg = shift @args; $arg; $arg = shift @args) {
	1051	# expand abbreviated options, put in $option
	1052	$arg =~ s/^-//;
	1053	$option = undef;
	1054	foreach my $ioption (@trigger_options) {
	1055	if (index($ioption, $arg) == 0) { # -$opt starts with $arg
	1056	if ($option) { # another already matched
	1057	Irssi::print("Ambiguous option: $arg", MSGLEVEL_CLIENTERROR);
	1058	return undef;
	1059	}
	1060	$option = $ioption;
	1061	last if ($arg eq $ioption); # exact match is unambiguous
	1062	}
	1063	}
	1064	if (!$option) {
	1065	Irssi::print("Unknown option: $arg", MSGLEVEL_CLIENTERROR);
	1066	return undef;
	1067	}
	1068
	1069	# -<param> <value> or -no<param>
	1070	foreach my $param (@trigger_params) {
	1071	if ($option eq $param) {
	1072	$trigger->{$param} = shift @args;
	1073	next ARGS;
	1074	}
	1075	if ($option eq 'no'.$param) {
	1076	$trigger->{$param} = undef;
	1077	next ARGS;
	1078	}
	1079	}
	1080
	1081	# -[no]<switch>
	1082	foreach my $switch (@trigger_switches) {
	1083	# -<switch>
	1084	if ($option eq $switch) {
	1085	$trigger->{$switch} = 1;
	1086	next ARGS;
	1087	}
	1088	# -no<switch>
	1089	elsif ($option eq 'no'.$switch) {
	1090	$trigger->{$switch} = undef;
	1091	next ARGS;
	1092	}
	1093	}
	1094
	1095	# -<filter> <value>
	1096	if ($filters{$option}) {
	1097	push @{$trigger->{'filters'}}, [$option, shift @args, $filters{$option}->{'sub'}];
	1098	next ARGS;
	1099	}
	1100
	1101	# -<nofilter>
	1102	if ($option =~ /^no(.*)$/ && $filters{$1}) {
	1103	my $filter = $1;
	1104	# the new filters are the old grepped for everything except ones with name $filter
	1105	@{$trigger->{'filters'}} = grep( $_->[0] ne $filter, @{$trigger->{'filters'}} );
	1106	}
	1107	}
	1108
	1109	if (defined($trigger->{'replace'}) && ! $trigger->{'regexp'} && !$trigger->{'pattern'}) {
	1110	Irssi::print("Trigger error: Can't have -replace without -regexp", MSGLEVEL_CLIENTERROR);
	1111	return undef;
	1112	}
	1113
	1114	if ($trigger->{'pattern'} && $trigger->{'regexp'}) {
	1115	Irssi::print("Trigger error: Can't have -pattern and -regexp in same trigger", MSGLEVEL_CLIENTERROR);
	1116	return undef;
	1117	}
	1118
	1119	# remove types that are implied by -all
	1120	if ($trigger->{'all'}) {
	1121	foreach my $type (@all_types) {
	1122	delete $trigger->{$type};
	1123	}
	1124	}
	1125
	1126	# remove types for which the filters don't apply
	1127	foreach my $type (@trigger_types) {
	1128	if ($trigger->{$type}) {
	1129	foreach my $filter (@{$trigger->{'filters'}}) {
	1130	if (!grep {$_ eq $type} @{$filters{$filter->[0]}->{'types'}}) {
	1131	Irssi::print("Warning: the filter -" . $filter->[0] . " can't apply to an event of type -$type, so I'm removing that type from this trigger.");
	1132	delete $trigger->{$type};
	1133	}
	1134	}
	1135	}
	1136	}
	1137
	1138	# check if it has at least one type
	1139	my $has_a_type;
	1140	foreach my $type (@trigger_types) {
	1141	if ($trigger->{$type}) {
	1142	$has_a_type = 1;
	1143	last;
	1144	}
	1145	}
	1146	if (!$has_a_type && !$trigger->{'all'}) {
	1147	Irssi::print("Warning: this trigger doesn't trigger on any type of message. you probably want to add -publics or -all");
	1148	}
	1149
	1150	compile_trigger($trigger);
	1151	%$thetrigger = %$trigger; # copy changes to real trigger
	1152	return $thetrigger;
	1153	}
	1154
	1155	# TRIGGER DELETE <num>
	1156	sub cmd_del {
	1157	my ($data, $server, $item) = @_;
	1158	my @args = shellwords($data);
	1159	my $index = find_trigger(shift @args);
	1160	if ($index != -1) {
	1161	Irssi::print("Deleted ". ($index+1) .": ". to_string($triggers[$index]));
	1162	splice (@triggers,$index,1);
	1163	rebuild();
	1164	$changed_since_last_save = 1;
	1165	}
	1166	}
	1167
	1168	# TRIGGER MOVE <num> <num>
	1169	sub cmd_move {
	1170	my ($data, $server, $item) = @_;
	1171	my @args = &shellwords($data);
	1172	my $index = find_trigger(shift @args);
	1173	if ($index != -1) {
	1174	my $newindex = shift @args;
	1175	if ($newindex < 1 \|\| $newindex > scalar(@triggers)) {
	1176	Irssi::print("$newindex is not a valid trigger number");
	1177	return;
	1178	}
	1179	Irssi::print("Moved from ". ($index+1) ." to $newindex: ". to_string($triggers[$index]));
	1180	$newindex -= 1; # array starts counting from 0
	1181	my $trigger = splice (@triggers,$index,1); # remove from old place
	1182	splice (@triggers,$newindex,0,($trigger)); # insert at new place
	1183	rebuild();
	1184	$changed_since_last_save = 1;
	1185	}
	1186	}
	1187
	1188	# TRIGGER LIST
	1189	sub cmd_list {
	1190	Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'trigger_header');
	1191	my $i=1;
	1192	foreach my $trigger (@triggers) {
	1193	Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'trigger_line', $i++, to_string($trigger));
	1194	}
	1195	}
	1196
	1197	######################
	1198	### initialisation ###
	1199	######################
	1200
	1201	command_bind('trigger help',\&cmd_help);
	1202	command_bind('help trigger',\&cmd_help);
	1203	command_bind('trigger add',\&cmd_add);
	1204	command_bind('trigger change',\&cmd_change);
	1205	command_bind('trigger move',\&cmd_move);
	1206	command_bind('trigger list',\&cmd_list);
	1207	command_bind('trigger delete',\&cmd_del);
	1208	command_bind('trigger save',\&cmd_save);
	1209	command_bind('trigger reload',\&cmd_load);
	1210	command_bind 'trigger' => sub {
	1211	my ( $data, $server, $item ) = @_;
	1212	$data =~ s/\s+$//g;
	1213	command_runsub('trigger', $data, $server, $item);
	1214	};
	1215
	1216	Irssi::signal_add('setup saved', \&autosave);
	1217	Irssi::signal_add('setup changed', \&sig_setup_changed);
	1218
	1219	# This makes tab completion work
	1220	Irssi::command_set_options('trigger add',join(' ',@trigger_add_options));
	1221	Irssi::command_set_options('trigger change',join(' ',@trigger_options));
	1222
	1223	Irssi::settings_add_str($IRSSI{'name'}, 'trigger_file', Irssi::get_irssi_dir()."/triggers");
	1224
	1225	cmd_load();

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