297 lines
9.1 KiB
Perl
Executable File
297 lines
9.1 KiB
Perl
Executable File
use strict;
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use warnings;
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{ package Irssi::Nick }
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# just in case, to avoid Irssi::Nick warnings ( see http://bugs.irssi.org/index.php?do=details&task_id=242 )
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use Irssi;
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use vars qw($VERSION %IRSSI);
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# Thanks to:
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# -noi_esportista!#Girona@chathispano for his suggestions about how this script should work.
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# -dg!#irssi@freenode (David Leadbeater) for the several code style issues that he pointed out and that helped me to improve my Perl.
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$VERSION = '1.6';
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%IRSSI = (
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authors => 'Pablo Martín Báez Echevarría',
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contact => 'pab_24n@outlook.com',
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name => 'clones_scanner',
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description => 'when a nick joins #channel, notifies you if there is (or there has been) someone in #channel with the same hostname',
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license => 'Public Domain',
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url => 'http://reirssi.wordpress.com',
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changed => '22:30:25, Dec 20th, 2014 UYT',
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);
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#
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# USAGE
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# =====
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# Copy the script to ~/.irssi/scripts/
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#
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# In irssi:
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# /run clones_scanner
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#
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#
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# OPTIONS
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# =======
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# Settings can be reset to defaults with /set -default
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#
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# /set clones_scanner_maxtime <time>
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# * This is the maximum time in which the script remembers that a specific hostname
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# left a channel because of a PART, QUIT or KICK event (default is 900secs = 15mins).
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# For example, suppose it is 1 hour. If someone with mask type nick1!*@host left #channel
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# at 11:00 and then comes back at 12:01 with mask type nick2!*@host, you will not be
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# notified that 'nick2' was seen earlier in #channel as 'nick1'.
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# It must be a time type, that is a series of integers with optional unit specifiers.
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# Valid specifiers are:
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#
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# d[ays]
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# h[ours]
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# m[inutes]
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# s[econds]
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# mil[liseconds] | ms[econds]
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#
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# Any unambiguous part of a specifier can be used, as shown by the strings in braces in
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# the above list. Multiple specifiers can be combined, with or without spaces between them.
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#
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# Examples:
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#
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# /set clones_scanner_maxtime 1hour30mins
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# /set clones_scanner_maxtime 2h
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# /set clones_scanner_maxtime 3h 10secs
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#
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# There must not be a space between the number and the unit specifier.
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#
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#
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# COMMANDS
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# ========
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# /clones_scanner_size
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# * Displays how many entries the data structure where the hosts are stored has, and how much
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# memory is used for that purpose.
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#
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# WARNING: This feature requires Devel::Size module. It seems that when installing Devel::Size
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# some tests started to fail since Perl 5.19.3 so if you're using the latest Perl release
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# (Perl 5.20.1) you'll have to wait for someone to fix Devel::Size for recent Perl versions.
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# See more about this issue at: https://rt.cpan.org/Public/Bug/Display.html?id=95493
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# Remeber that you can find out Perl version with
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# $ perl -v
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# in a terminal or alternatively executing /script exec print $^V in irssi.
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#
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Irssi::settings_add_time('clones_scanner', 'clones_scanner_maxtime', 900);
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# global variables
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my $have_devel_size = eval { require Devel::Size };
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my %hosts_hash = ();
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my $old_maxtime_msecs;
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my $old_maxtime_str;
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my $total_entries = 0;
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##########
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sub add_entry {
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my ( $network, $channel, $address, $nick ) = @_;
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(my $host = $address) =~ s/^[^@]+@//;
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if (defined $hosts_hash{$network}{$channel}{$host}) {
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my $old_tag = $hosts_hash{$network}{$channel}{$host}[2];
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Irssi::timeout_remove( $old_tag );
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$total_entries--;
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}
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my $time = Irssi::settings_get_time("clones_scanner_maxtime");
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my @data = ( $network, $channel, $host );
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my $tag = Irssi::timeout_add_once($time, "remove_entry", \@data);
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my $entry = [$nick, time(), $tag];
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$hosts_hash{$network}{$channel}{$host} = $entry;
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$total_entries++;
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}
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sub str_time {
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my ( $secs ) = @_;
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my $d = int($secs/3600/24);
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my $h = int($secs/3600%24);
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my $m = int($secs/60%60);
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my $s = int($secs%60);
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my $d_str = ($d == 1) ? "day": "days";
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my $h_str = ($h == 1) ? "hour": "hours";
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my $m_str = ($m == 1) ? "minute": "minutes";
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my $s_str = ($s == 1) ? "second": "seconds";
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my $raw_str = $d.$d_str.", ".$h.$h_str.", ".$m.$m_str.", ".$s.$s_str;
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(my $str_res = $raw_str) =~ s/\b0\w+(?:,\s)?//g;
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($str_res = $str_res) =~ s/,\s$//;
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($str_res = $str_res) =~ s/(\d)([dhms])/$1 $2/g;
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return $str_res eq "" ? "less than 1 second" : $str_res;
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}
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sub remove_entry {
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my ( $ref_data ) = @_;
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my $network = @{$ref_data}[0];
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my $chan = @{$ref_data}[1];
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my $host = @{$ref_data}[2];
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delete $hosts_hash{$network}{$chan}{$host};
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$total_entries--;
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delete $hosts_hash{$network}{$chan} if (!keys %{$hosts_hash{$network}{$chan}});
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delete $hosts_hash{$network} if (!keys %{$hosts_hash{$network}});
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}
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sub update_hash {
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my ( $nw_maxtime ) = @_;
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my $remainder;
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my $ni;
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my $se;
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my $tg;
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my $nw_tg;
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foreach my $network (keys %hosts_hash) {
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foreach my $channel (keys %{$hosts_hash{$network}}) {
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foreach my $host (keys %{$hosts_hash{$network}{$channel}}) {
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$ni = @{$hosts_hash{$network}{$channel}{$host}}[0];
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$se = @{$hosts_hash{$network}{$channel}{$host}}[1];
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$tg = @{$hosts_hash{$network}{$channel}{$host}}[2];
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Irssi::timeout_remove( $tg );
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$remainder = $nw_maxtime - (time() - $se);
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if( $remainder > 0 ) {
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my @data = ( $network, $channel, $host );
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$nw_tg = Irssi::timeout_add_once( $remainder*1000, "remove_entry", \@data);
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$hosts_hash{$network}{$channel}{$host} = [$ni, $se, $nw_tg];
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} else {
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delete $hosts_hash{$network}{$channel}{$host};
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$total_entries--;
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}
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}
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delete $hosts_hash{$network}{$channel} if (!keys %{$hosts_hash{$network}{$channel}});
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}
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delete $hosts_hash{$network} if (!keys %{$hosts_hash{$network}});
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}
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}
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sub setup_changed {
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my $new_maxtime_msecs = Irssi::settings_get_time("clones_scanner_maxtime");
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if($new_maxtime_msecs < 10) {
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Irssi::print("Invalid timestamp (must be >= 10 msecs)", MSGLEVEL_CLIENTERROR);
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Irssi::settings_set_time("clones_scanner_maxtime", $old_maxtime_str);
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$new_maxtime_msecs = Irssi::settings_get_time("clones_scanner_maxtime");
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}
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update_hash(int($new_maxtime_msecs/1000)) if ($new_maxtime_msecs != $old_maxtime_msecs);
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}
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##########
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sub part_method {
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my ($server, $channel, $nick, $address, $reason) = @_;
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add_entry($server->{tag}, $channel, $address, $nick);
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}
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sub quit_method {
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my ($server, $nick, $address, $reason) = @_;
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foreach($server->channels()) {
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if ($_->nick_find($nick)) {
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add_entry($server->{tag}, $_->{name}, $address, $nick);
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}
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}
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}
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sub kick_method {
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my ($server, $channel, $nick, $kicker, $address, $reason) = @_;
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Irssi::signal_stop();
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my $kicked_address = $server->channel_find($channel)->nick_find($nick)->{host};
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Irssi::signal_continue(@_);
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add_entry($server->{tag}, $channel, $kicked_address, $nick);
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}
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##########
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sub join_method {
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my ($server, $channel, $nick, $address) = @_;
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Irssi::signal_continue(@_);
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my $servtag = $server->{tag};
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(my $host = $address) =~ s/^[^@]+@//;
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my $chan_rec = $server->channel_find($channel);
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# ==== find clones ====
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my $ni_host;
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my $str_clones = "";
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my @clones;
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foreach my $ni ($chan_rec->nicks()) {
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($ni_host = "$ni->{host}") =~ s/^[^@]+@//;
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if ( ($ni->{nick} ne $nick)&&($ni_host eq $host) ) {
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$str_clones .= "$ni->{nick}".", ";
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push @clones, $ni->{nick};
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}
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}
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if( $str_clones ne "") {
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($str_clones = $str_clones) =~ s/,\s$//;
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$chan_rec->printformat(Irssi::MSGLEVEL_JOINS, "clones_scanner_clones", $nick, $str_clones);
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}
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# ==== search in %hosts_hash ====
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my $exists_nick_in_hash = (defined $hosts_hash{$servtag})&&(defined $hosts_hash{$servtag}{$channel})
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&&(defined $hosts_hash{$servtag}{$channel}{$host});
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if ($exists_nick_in_hash) {
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my @alias = @{ $hosts_hash{$servtag}{$channel}{$host} };
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if ( ($nick ne $alias[0]) && (!(grep {$_ eq $alias[0]} @clones)) ) {
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my $time = Irssi::settings_get_time("clones_scanner_maxtime");
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$chan_rec->printformat( Irssi::MSGLEVEL_JOINS, "clones_scanner_track_nick", $nick, str_time(int($time/1000)),
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$alias[0], str_time(time()-$alias[1]));
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}
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}
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}
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##########
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Irssi::theme_register([
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"clones_scanner_clones", 'Clones of {nick $0}: $1',
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"clones_scanner_track_nick", '=> {nick $0} was seen during the last $1 as {nick $2} ($3 ago)',
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]);
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##########
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if ($have_devel_size) {
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Irssi::command_bind('clones_scanner_size' , sub {
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my $bytes = Devel::Size::total_size(\%hosts_hash);
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print "Number of entries in \%hosts_hash: ", $total_entries;
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print "Size in bytes: ", $bytes;
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print int($bytes/1024/1024)."MB ".int($bytes/1024%1024)."kB ".int($bytes%1024)."B of data";
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});
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} else {
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print "Missing Devel::Size module. The command `/clones_scanner_size` will not be available.";
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}
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Irssi::signal_add_first('message part', \&part_method);
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Irssi::signal_add_first('message quit', \&quit_method);
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Irssi::signal_add_first('message kick', \&kick_method);
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Irssi::signal_add_last('message join', \&join_method);
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Irssi::signal_add_last('setup changed', \&setup_changed);
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Irssi::signal_add_first('send command',
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sub {
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$old_maxtime_msecs = Irssi::settings_get_time("clones_scanner_maxtime");
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$old_maxtime_str = Irssi::settings_get_str("clones_scanner_maxtime");
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});
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