Import scripts from scripts.irssi.org

1 files changed, 374 insertions, 0 deletions

diff --git a/scripts/trustweb.pl b/scripts/trustweb.pl
new file mode 100644
index 0000000..0fb60ba
--- /dev/null
+++ b/scripts/trustweb.pl
@@ -0,0 +1,374 @@
+use strict;
+
+use vars qw($VERSION %IRSSI);
+$VERSION = "2003020801";
+%IRSSI = (
+    authors     => "Stefan 'tommie' Tomanek",
+    contact     => "stefan\@pico.ruhr.de",
+    name        => "TrustWeb",
+    description => "Illustrates the trust between ops",
+    license     => "GPLv2",
+    modules     => "Data::Dumper IO::File POSIX",
+    changed     => "$VERSION",
+    commands	=> "trustweb"
+);
+
+
+use Irssi 20020324;
+use Irssi::TextUI;
+use Data::Dumper;
+use IO::File;
+use POSIX;
+use vars qw(%database);
+
+sub draw_box ($$$$) {
+    my ($title, $text, $footer, $colour) = @_;
+    my $box = '';
+    $box .= '%R,--[%n%9%U'.$title.'%U%9%R]%n'."\n";
+    foreach (split(/\n/, $text)) {
+        $box .= '%R|%n '.$_."\n";
+    }                                                                               $box .= '%R`--<%n'.$footer.'%R>->%n';
+    $box =~ s/%.//g unless $colour;
+    return $box;
+}
+
+sub show_help() {
+    my $help = $IRSSI{name}." ".$VERSION."
+/trustweb help
+    Display this help
+/trustweb save/load
+    Load or save the database
+/trustweb show <nick>
+    Display the trust for <nick>
+/trustweb scan
+    Scan all buffers for modechanges
+/trustweb trace <nick1> <nick2>
+    Search the shortest connection between two nicks
+/trustweb merge <nick1> <nick2>
+    Move all trustdata from nick1 to nick2
+";
+    my $text = "";
+    foreach (split(/\n/, $help)) {
+        $_ =~ s/^\/(.*)$/%9\/$1%9/;
+        $text .= $_."\n";
+    }
+    print CLIENTCRAP draw_box($IRSSI{name}, $text, "Help", 1);
+}
+
+
+sub save_db {
+    my $filename = Irssi::settings_get_str('trustweb_db_file');
+    my $io = new IO::File $filename, "w";
+    if (defined $io) {
+	my $dumper = Data::Dumper->new([\%database]);
+	$dumper->Purity(1)->Deepcopy(1);
+	$io->print($dumper->Dump);
+	$io->close;
+    }
+    print CLIENTCRAP "%B>>%n Trustweb database saved to ".$filename;
+}
+
+sub load_db {
+    my $filename = Irssi::settings_get_str('trustweb_db_file');
+    my $io = new IO::File $filename, "r";
+    if (defined $io) {
+	no strict 'vars';
+	my $text;
+	$text .= $_ foreach ($io->getlines);
+	my $database = eval "$text";
+	%database = %$database if ref $database;
+    }
+    print CLIENTCRAP "%B>>%n Trustweb database loaded from ".$filename;
+}
+
+sub scan_buffers {
+    foreach my $channel (Irssi::channels()) {
+    	my $win = $channel->window();
+	my $name = $channel->{name};
+	my $server = $channel->{server};
+	my $view = $win->view();
+	my $line = $view->get_lines();
+	my $lines  = 0;
+	while (defined $line) {
+	    my $text = $line->get_text(0);
+	    if ($line->{info}{level} == 2048) {
+		if ($text =~ /\[([\+\-].*?)\] by (.*)/) {
+		    sig_message_irc_mode($server, $name, $2, undef, $1);
+		}
+	    }
+	    $line = $line->next;
+	    $lines++;
+	}
+    }
+}
+
+sub sig_message_irc_mode ($$$$$) {
+    my ($server, $channel, $nick, $addr, $mode) = @_;
+    return if ($nick =~ /\./);
+    my $state;
+    my @pipe;
+    my %result;
+    my $tag = lc $server->{tag};
+    my ($modes, $nicks) = split(/ /, $mode, 2);
+    foreach (split(//, $modes)) {
+	if ($_ eq '+' || $_ eq '-') {
+	    $state = $_;
+	} else {
+	    push @pipe, $state.$_;
+	}
+    }
+
+    foreach (split(/ /, $nicks)) {
+	my $change = shift(@pipe);
+	if ($change eq '+o') {
+	    foreach my $active (split /, ?/, $nick) {
+		$database{$tag}{lc $active}{lc $_} = 1;
+	    }
+	} elsif ($change eq '-o') {
+	    foreach my $active (split /, ?/, $nick) {
+		$database{$tag}{lc $active}{lc $_} = -1;
+	    }
+	}
+    }
+}
+
+sub sig_nicklist_changed ($$$) {
+    my ($channel, $nick, $old) = @_;
+    my $server = $channel->{server};
+    my $new = lc $nick->{nick};
+    my $tag = lc $server->{tag};
+    merge_nicks($tag, $old, $new);
+}
+
+sub merge_nicks ($$$) {
+    my ($tag, $old, $new) = @_;
+    $tag = lc $tag;
+    $new = lc $new;
+    $old = lc $old;
+    return if $old eq $new;
+    if (defined $database{$tag}{$old}) {
+	foreach (keys %{ $database{$tag}{$old} }) {
+	    $database{$tag}{$new}{$_} = $database{$tag}{$old}{$_};
+	}
+	delete $database{$tag}{$old}
+    }
+    foreach (keys %{ $database{$tag} }) {
+	if (defined $database{$tag}{$_}{$old}) {
+	    $database{$tag}{$_}{$new} = $database{$tag}{$_}{$old};
+	    delete $database{$tag}{$_}{$old};
+	}
+    }
+}
+
+sub show_trust ($$) {
+    my ($nicks, $tag) = @_;
+    my $text;
+    foreach (@$nicks) {
+	$text .= draw_trust($_, $tag);
+    }
+    print CLIENTCRAP &draw_box('TrustWeb', $text, $tag, 1);
+}
+
+sub draw_trust ($$) {
+    my ($nick, $tag) = @_;
+    my (@opfrom,  @opto);
+    my $text;
+    #return unless $database{$nick};
+    my ($maxfrom, $maxto)  = (0, 0);
+    my $distrust = Irssi::settings_get_bool('trustweb_show_distrust');
+    foreach (sort keys %{ $database{$tag} }) {
+	next unless defined $database{$tag}{$_}{lc $nick};
+	push @opfrom, [$_,1] if $database{$tag}{$_}{lc $nick} > 0;
+	push @opfrom, [$_,-1] if ($database{$tag}{$_}{lc $nick} < 0 && $distrust);
+	$maxfrom = length($_) if length($_) > $maxfrom;
+    }
+    if (defined $database{$tag}{lc $nick}) {
+	foreach (sort keys %{$database{$tag}{lc $nick}}) {
+	    push @opto, [$_,1] if $database{$tag}{lc $nick}{$_} > 0;
+	    push @opto, [$_,-1] if ($database{$tag}{lc $nick}{$_} < 0 && $distrust);
+	    $maxto = length($_) if length($_) > $maxto;
+	}
+    }
+    my $items = @opfrom > @opto ? @opfrom-1 : @opto-1;
+    my $i = 0;
+    my $center = sprintf("%.0f", $items/2);
+    $center = @opfrom-1 if (@opfrom && not(defined $opfrom[$center]));
+    $center = @opto-1 if (@opto && not(defined $opto[$center]));
+    foreach (0..$items) {
+	my $line;
+	if (defined $opfrom[$_]) {
+	    $line .= '<'.$opfrom[$_][0];
+	    $line .= ' ' x ($maxfrom - length($opfrom[$_][0]));
+	    $line .= '>';
+            $line .= '-' if $opfrom[$_][1] > 0;
+            $line .= '%' if $opfrom[$_][1] < 0;
+	    $line .= "," if $_ < $center;
+	    $line .= "+" if $_ == $center;
+	    $line .= "'" if $_ > $center;
+	} else {
+	    $line .= ' ' x ($maxfrom+4) if $maxfrom;
+	}
+	if ($_ == $center) {
+	    $line .= '-' if @opfrom;
+	    $line .= '(%9'.$nick.'%9)';
+	    $line .= '-' if @opto;
+	} else {
+	    $line .= ' ' if @opfrom;
+	    $line .= ' ' x (length($nick)+2);
+	    $line .= ' ' if @opto;
+	}
+	if (defined $opto[$_]) {
+            $line .= "," if $_ < $center;
+            $line .= "+" if $_ == $center;
+            $line .= "'" if $_ > $center;
+	    $line .= '-' if $opto[$_][1] > 0;
+	    $line .= '%' if $opto[$_][1] < 0;
+	    $line .= '<'.$opto[$_][0];
+	    $line .= ' ' x ($maxto - length($opto[$_][0]));
+	    $line .= '>';
+	} else {
+	    $line .= ' ' x ($maxto+4) if $maxto;
+	}
+	$text .= $line."\n";
+	$i++;
+    }
+    return $text;
+}
+
+sub bg_trace ($$$) {
+    my ($tag, $from, $to) = @_;
+    my ($rh, $wh);
+    pipe($rh, $wh);
+    my $pid = fork();
+    if ($pid > 0) {
+	close $wh;
+	Irssi::pidwait_add($pid);
+        my $pipetag;
+        my @args = ($tag, $from, $to, $rh, \$pipetag);
+        $pipetag = Irssi::input_add(fileno($rh), INPUT_READ, \&pipe_input, \@args);
+    } else {
+	my $result = walk($from, $to, $database{$tag}, {}, [], [], 0);
+	my $dumper = Data::Dumper->new([$result]);
+	$dumper->Purity(1)->Deepcopy(1);
+	print($wh $dumper->Dump());
+	close $wh;
+	POSIX::_exit(1);
+    }
+}
+
+sub pipe_input ($) {
+    my ($tag, $from, $to, $rh, $pipetag) = @{$_[0]};
+    my $text;
+    $text .= $_ foreach (<$rh>);
+    close($rh);
+    Irssi::input_remove($$pipetag);
+    no strict 'vars';
+    my $result = eval "$text";
+    draw_trace($tag, $from, $to, $result);
+}
+
+sub walk ($$$$$$) {
+    my ($pos, $goal, $data, $visited, $street, $ideal) = @_;
+    my @road = @$street;
+    
+    return $ideal if $visited->{$pos};
+    return $ideal if (@$ideal && not(Irssi::settings_get_bool('trustweb_trace_find_shortest_path')));
+    return \@road if ($pos eq $goal);
+    return $ideal if (@$ideal && @$street >= @$ideal);
+    return $ideal if (Irssi::settings_get_int('trustweb_trace_max_depth') && @road > Irssi::settings_get_int('trustweb_trace_max_depth'));
+    
+    $visited->{$pos} = 1;
+    my $nodistrust = not Irssi::settings_get_bool('trustweb_trace_distrust');
+    foreach (keys %{ $data->{$pos} }) {
+	next if ($data->{$pos}{$_} < 1 && $nodistrust);
+	push @road, [ $_, 1, $data->{$pos}{$_} ];
+	$ideal = walk($_, $goal, $data, $visited, \@road, $ideal);
+	pop @road;
+    }
+    foreach (keys %$data) {
+	next unless defined $data->{$_}{$pos};
+	next if ($data->{$_}{$_} < 1 && $nodistrust);
+	push @road, [ $_, 0, $data->{$_}{$pos} ];
+	$ideal = walk($_, $goal, $data, $visited, \@road, $ideal);
+	pop @road;
+    }
+    $visited->{$pos} = 0;
+    return $ideal;
+}
+
+
+sub draw_trace ($$$$) {
+    my ($tag, $from, $to, $route) = @_;
+    my $line = "%B<<%n ";
+    if (ref $route && @$route) {
+	$line .= $from;
+	foreach (@$route) {
+	    if ($_->[1]) { 
+		$line .= ' ';
+		$line .= $_->[2] > 0 ? '=' : '%%';
+		$line .= '> ';
+	    } else {
+		$line .= ' <';
+		$line .= $_->[2] > 0 ? '=' : '%';
+		$line .= ' ';
+	    }
+	    $line .= $_->[0];
+	}
+    } else {
+	$line .= "No connection between ".$from." and ".$to." could be found.";
+    }
+    print $line;
+}
+
+sub pre_unload {
+    save_db();
+}
+
+sub cmd_trustweb ($$$) {
+    my ($args, $server, $witem) = @_;
+    my $tag = ref $server ? lc $server->{tag} : lc Irssi::settings_get_str('trustweb_default_ircnet');
+    my @arg = split(/ +/, $args);
+    if (not(@arg) || $arg[0] eq 'help') {
+	show_help();
+    } elsif ($arg[0] eq 'scan') {
+	scan_buffers();
+	print CLIENTCRAP "%R>>%n All buffers scanned for modes";
+    } elsif ($arg[0] eq 'show' && defined $arg[1]) {
+	shift @arg;
+	show_trust(\@arg, $tag);
+    } elsif ($arg[0] eq 'save') {
+	save_db;
+    } elsif ($arg[0] eq 'load') {
+	load_db;
+    } elsif ($arg[0] eq 'trace' && defined $arg[1] && defined $arg[2]) {
+	bg_trace($tag, lc $arg[1], lc $arg[2]);
+	print CLIENTCRAP "%B>>%n Searching connection between ".$arg[1]." and ".$arg[2]."...";
+    } elsif ($arg[0] eq 'merge' && defined $arg[1] && defined $arg[2]) {
+	return unless ref $server;
+	merge_nicks($server->{tag}, $arg[1], $arg[2]);
+	print CLIENTCRAP "%B>>%n '".$arg[1]."' has been merged with '".$arg[2]."'";
+    }
+}
+
+Irssi::settings_add_str($IRSSI{name}, 'trustweb_default_ircnet', '');
+Irssi::settings_add_str($IRSSI{name}, 'trustweb_db_file', Irssi::get_irssi_dir()."/trustweb_database");
+Irssi::settings_add_bool($IRSSI{name}, 'trustweb_show_distrust' , 1);
+
+Irssi::settings_add_bool($IRSSI{name}, 'trustweb_trace_distrust' , 1);
+Irssi::settings_add_bool($IRSSI{name}, 'trustweb_trace_find_shortest_path' , 1);
+Irssi::settings_add_int($IRSSI{name}, 'trustweb_trace_max_depth' , 0);
+
+Irssi::signal_add('setup saved', 'save_db');
+Irssi::signal_add('message irc mode', \&sig_message_irc_mode);
+Irssi::signal_add_first('nicklist changed', \&sig_nicklist_changed);
+
+Irssi::command_bind('trustweb', \&cmd_trustweb);
+
+foreach my $cmd ('save', 'load', 'scan', 'show', 'help', 'trace', 'merge') {
+    Irssi::command_bind('trustweb '.$cmd =>
+        sub { cmd_trustweb("$cmd ".$_[0], $_[1], $_[2]); } );
+}
+
+load_db();
+
+print CLIENTCRAP '%B>>%n '.$IRSSI{name}.' '.$VERSION.' loaded: /trustweb help for help';