Add antiflood module, expose $irc to modules

1 files changed, 39 insertions, 0 deletions

diff --git a/plugin/antiflood.pm b/plugin/antiflood.pm
new file mode 100644
index 0000000..d9326ba
--- /dev/null
+++ b/plugin/antiflood.pm
@@ -0,0 +1,39 @@
+#!/usr/bin/env perl
+
+package plugin::antiflood;
+
+use strict;
+use warnings;
+
+my $message_count = 5;
+my $message_period = 11;
+
+
+my %config;
+my %lastmsg = ();
+
+sub configure {
+	my $self = $_[0];
+	my $cref = $_[1];
+	%config = %$cref;
+	return $self;
+}
+
+sub message {
+	my ($self, $logger, $me, $who, $where, $raw_what, $what, $irc) = @_;
+	my $channel = $where->[0];
+	my $nick = (split /!/, $who)[0];
+
+	my $now = time();
+	push @{$lastmsg{$nick}}, $now;
+
+	# FIXME limit buffer size to 5
+	if (@{$lastmsg{$nick}} >= $message_count) {
+		my $first = @{$lastmsg{$nick}}[0];
+		if ($now - $first <= $message_period) {
+			$irc->yield(kick => $channel => $nick => "Flood");
+		}
+	}
+	return;
+}
+1;