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package Plack::Middleware::Throttle::Interval;
use Moose;
extends 'Plack::Middleware::Throttle';
has min => (is => 'rw', isa => 'Int', default => 0, lazy => 1);
sub allowed {
my ($self, $key) = @_;
my $t1 = time();
my $t0 = $self->backend->get($key);
$self->backend->set($key, $t1);
if (!$t0 || ($t1 - $t0) > $self->min) {
return 1;
}else{
return 0;
}
}
sub cache_key {
my ( $self, $env ) = @_;
$self->client_identifier($env);
}
sub reset_time {
time + 1;
}
1;
__END__
=head1 NAME
Plack::Middleware::Throttle::Interval - A Plack Middleware for rate-limiting incoming HTTP requests.
=head1 SYNOPSIS
my $handler = builder {
enable "Throttle::Interval",
min => 2,
backend => Plack::Middleware::Throttle::Backend::Hash->new();
sub { [ '200', [ 'Content-Type' => 'text/html' ], ['hello world'] ] };
};
=head1 DESCRIPTION
How many request an host can do between an interval of time (in seconds).
=head1 OPTIONS
=over 4
=item B<min>
How many requets can be done in an interval of time.
=back
=head1 AUTHOR
franck cuny E<lt>franck@lumberjaph.netE<gt>
=head1 SEE ALSO
=head1 LICENSE
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
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