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package ASM::Classes;
use strict;
use warnings;
my %sf = ();
sub new
{
my $module = shift;
my $self = {};
my $tbl = {
"dnsbl" => \&dnsbl,
"floodqueue" => \&floodqueue,
"nickspam" => \&nickspam,
"splitflood" => \&splitflood,
"re" => \&re,
"nick" => \&nick,
"ident" => \&ident,
"host" => \&host,
"gecos" => \&gecos,
"nuhg" => \&nuhg,
};
$self->{ftbl} = $tbl;
bless($self);
return $self;
}
sub check {
my $self = shift;
my $item = shift;
return $self->{ftbl}->{$item}->(@_);
}
sub dnsbl {
my ($xchk, $id, $event, $chan, $rev) = @_;
my %chk = %{$xchk};
return unless index($event->{host}, '/') == -1;
if (defined $rev) {
my $iaddr = gethostbyname( "$rev$chk{content}" );
my @dnsbl = unpack( 'C4', $iaddr ) if defined $iaddr;
return 1 if (@dnsbl);
}
return 0;
}
sub floodqueue {
my ($xchk, $id, $event, $chan, $rev) = @_;
my %chk = %{$xchk};
my @cut = split(/:/, $chk{content});
return 1 if ( flood_add( $chan, $id, $event->{host}, int($cut[1]) ) == int($cut[0]) );
return 0;
}
sub nickspam {
my ($chk, $id, $event, $chan) = @_;
my @cut = split(/:/, $chk->{content});
if ( length $event->{args}->[0] >= int($cut[0]) ) {
%_ = map { $_=>$_ } lc keys %{$::sc{lc $chan}{users}};
my @uniq = grep( $_{$_}, split( / / , lc $event->{args}->[0]) );
return 1 if ( $#{ @uniq } >= int($cut[1]) );
}
return 0;
}
my %cf=();
my %bs=();
sub splitflood {
my ($chk, $id, $event, $chan) = @_;
my $text;
my @cut = split(/:/, $chk->{content});
$cf{$id}{timeout}=int($cut[1]);
if ($event->{type} =~ /^(public|notice|part|caction)$/) {
$text=$event->{args}->[0];
}
return unless defined($text);
return unless length($text) >= 10;
if (defined($bs{$id}{$text}) && (time <= $bs{$id}{$text} + 600)) {
return 1;
}
push( @{$cf{$id}{$chan}{$text}}, time );
foreach my $nid ( keys %cf ) {
foreach my $xchan ( keys %{$cf{$nid}} ) {
next if $xchan eq 'timeout';
foreach my $host ( keys %{$cf{$nid}{$xchan}} ) {
next unless defined $cf{$nid}{$xchan}{$host}[0];
while ( time >= $cf{$nid}{$xchan}{$host}[0] + $cf{$nid}{'timeout'} ) {
last if ( $#{ $cf{$nid}{$xchan}{$host} } == 0 );
shift ( @{$cf{$nid}{$xchan}{$host}} );
}
}
}
}
if ( $#{ @{$cf{$id}{$chan}{$text}}}+1 == int($cut[0]) ) {
$bs{$id}{$text} = time;
return 1;
}
return 0;
}
sub re {
my ($chk, $id, $event, $chan) = @_;
my $match = $event->{args}->[0];
$match = $event->{nick} if ($event->{type} eq 'join');
if ( defined($chk->{nocase}) ) {
return 1 if ($match =~ /$chk->{content}/i);
} else {
return 1 if ($match =~ /$chk->{content}/);
}
return 0;
}
sub nick {
my ($chk, $id, $event, $chan) = @_;
if ( lc $event->{nick} eq lc $chk->{content} ) {
return 1;
}
return 0;
}
sub ident {
my ( $chk, $id, $event, $chan) = @_;
if ( lc $event->{user} eq lc $chk->{content} ) {
return 1;
}
return 0;
}
sub host {
my ( $chk, $id, $event, $chan) = @_;
if ( lc $event->{host} eq lc $chk->{content} ) {
return 1;
}
return 0;
}
sub gecos {
my ( $chk, $id, $event, $chan) = @_;
if ( lc $::sn{lc $event->{nick}}->{gecos} eq lc $chk->{content} ) {
return 1;
}
return 0;
}
sub nuhg {
my ( $chk, $id, $event, $chan) = @_;
my $match = $event->{from} . '!' . $::sn{lc $event->{nick}}->{gecos};
if ( defined($chk->{nocase}) ) {
return 1 if ($match =~ /$chk->{content}/i);
} else {
return 1 if ($match =~ /$chk->{content}/);
}
return 0;
}
sub flood_add {
my ( $chan, $id, $host, $to ) = @_;
push( @{$sf{$id}{$chan}{$host}}, time );
while ( time >= $sf{$id}{$chan}{$host}[0] + $to ) {
last if ( $#{ $sf{$id}{$chan}{$host} } == 0 );
shift( @{$sf{$id}{$chan}{$host}} );
}
return $#{ @{$sf{$id}{$chan}{$host}}}+1;
}
sub flood_process {
for my $id ( keys %sf ) {
for my $chan ( keys %{$sf{$id}} ) {
for my $host ( keys %{$sf{$id}{$chan}} ) {
next unless defined $sf{$id}{$chan}{$host}[0];
while ( time >= $sf{$id}{$chan}{$host}[0] + $sf{$id}{'timeout'} ) {
last if ( $#{ $sf{$id}{$chan}{$host} } == 0 );
shift ( @{$sf{$id}{$chan}{$host}} );
}
}
}
}
}
return 1;
|
