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# Some elements borrowed from ideas developed by shabble@freenode(https://github.com/shabble/irssi-docs/wiki )
#
# You can change what intercept.pl considers a linestart by setting
# /set intercept_linestart to a regular expression that fits your needs.
# For most, a simple whitespace or . pattern will stop most accidental
# inputs.
#
# You can also tell which patterns should be ignored, for example
# /set intercept_exceptions s/\w+/[\w\s\d]+/ wouldn't consider
# s/word a mistyped command if it is followed by a slash, string of
# valid characters and a final slash.
# You can enter several patterns separated by a space.
use strict;
use warnings;
use Data::Dumper;
use Carp qw( croak );
use Irssi;
use Data::Munge 'list2re';
use vars qw($VERSION %IRSSI);
$VERSION = "0.3";
%IRSSI = (
authors => "Jari Matilainen",
contact => 'vague!#irssi@libera.chat on irc',
name => "intercept",
description => "Intercept misprinted commands and offer to remove the first character before sending it on",
license => "Public Domain",
url => "https://irssi.org",
changed => "04 Mar 16:00:00 CET 2022",
);
my $active = 0;
my $permit_pending = 0;
my $pending_input = {};
my $verbose = 0;
my $isword = 0;
my $cmdregexp = list2re map {$_->{cmd}} Irssi::commands();
sub script_is_loaded {
return exists($Irssi::Script::{$_[0] . '::'});
}
if (script_is_loaded('uberprompt')) {
app_init();
}
else {
print "This script requires 'uberprompt.pl' in order to work. "
. "Attempting to load it now...";
Irssi::signal_add('script error', 'load_uberprompt_failed');
Irssi::command("script load uberprompt.pl");
unless(script_is_loaded('uberprompt')) {
load_uberprompt_failed("File does not exist");
}
app_init();
}
sub load_uberprompt_failed {
Irssi::signal_remove('script error', 'load_uberprompt_failed');
print "Script could not be loaded. Script cannot continue. "
. "Check you have uberprompt.pl installed in your scripts directory and "
. "try again. Otherwise, it can be fetched from: ";
print "https://github.com/shabble/irssi-scripts/raw/master/"
. "prompt_info/uberprompt.pl";
croak "Script Load Failed: " . join(" ", @_);
}
sub sig_send_text {
my ($data, $server, $witem) = @_;
if($permit_pending == 1) {
$pending_input = {};
$permit_pending = 0;
Irssi::signal_continue(@_);
}
elsif($permit_pending == 2) {
my $regexp = Irssi::settings_get_str('intercept_linestart');
$pending_input = {};
$permit_pending = 0;
Irssi::signal_stop();
$data =~ s/^$regexp//;
if(ref $witem && $witem->{type} eq 'CHANNEL') {
$witem->command($data);
}
else {
$server->command($data);
}
}
elsif($permit_pending == 3) {
$pending_input = {};
$permit_pending = 0;
$isword = 0;
Irssi::signal_stop();
if(ref $witem && $witem->{type} eq 'CHANNEL') {
$witem->command($data);
}
else {
$server->command($data);
}
}
else {
(my $cmdchars = Irssi::settings_get_str('cmdchars')) =~ s/(.)(.)/$1|$2/;
my @exceptions = split / /, Irssi::settings_get_str('intercept_exceptions');
foreach(@exceptions) {
return if($data =~ m{$_}i);
}
my ($first) = split ' ', $data;
my $regexp = Irssi::settings_get_str('intercept_linestart');
$regexp =~ s/(^[\^])|([\$]$)//g;
if($data =~ /^($regexp)($cmdchars)/i) {
my $text = "You have " . ($1 eq ' '?'a space':$1) . " infront of your cmdchar '$2', is this what you wanted? [y/F/c]";
$pending_input = {
text => $data,
server => $server,
win_item => $witem,
};
Irssi::signal_stop();
require_confirmation($text);
}
elsif($data =~ /^\s*($cmdregexp)\b/i) {
my $text = "The first word, '$1', looks like a command, is this what you wanted? [y/F/c]";
$isword = 1;
$pending_input = {
text => $data,
server => $server,
win_item => $witem,
};
Irssi::signal_stop();
require_confirmation($text);
}
}
}
sub sig_gui_keypress {
my ($key) = @_;
return if not $active;
my $char = chr($key);
# we support f, F, enter for Fix.
if($char =~ m/^f?$/i) {
$permit_pending = 2 + $isword;
Irssi::signal_stop();
Irssi::signal_emit('send text',
$pending_input->{text},
$pending_input->{server},
$pending_input->{win_item});
$active = 0;
set_prompt('');
}
elsif($char =~ m/^y$/i) {
# y or Y for send as is
$permit_pending = 1;
Irssi::signal_stop();
Irssi::signal_emit('send text',
$pending_input->{text},
$pending_input->{server},
$pending_input->{win_item});
$active = 0;
set_prompt('');
}
elsif ($char =~ m/^c$/i or $key == 3 or $key == 7) {
# we support c, C, Ctrl-C, and Ctrl-G for don't send
Irssi::signal_stop();
set_prompt('');
$permit_pending = 0;
$active = 0;
$pending_input = {};
}
else {
Irssi::signal_stop();
return;
}
}
sub app_init {
Irssi::signal_add_first("send text" => \&sig_send_text);
Irssi::signal_add_first('gui key pressed' => \&sig_gui_keypress);
Irssi::signal_add("commandlist new" =>
sub {
$cmdregexp = list2re map {$_->{cmd}} Irssi::commands();
});
Irssi::settings_add_str('Intercept', 'intercept_exceptions', 's/\w+/[\w\s\d]+/');
Irssi::settings_add_str('Intercept', 'intercept_linestart', '\s');
}
sub require_confirmation {
$active = 1;
set_prompt(shift);
}
sub set_prompt {
my ($msg) = @_;
$msg = ': ' . $msg if length $msg;
Irssi::signal_emit('change prompt', $msg, 'UP_INNER');
}
sub _debug {
return unless $verbose;
my ($msg, @params) = @_;
my $str = sprintf($msg, @params);
print $str;
}
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