Sledge::Plugin::RedirectReferer - referer redirect plugin for Sledge

    package Your::Pages;
    use Sledge::Plugin::RedirectReferer;

    sub dispatch_index {
        my $self = shift;
        return $self->redirect_referer('/if/non/referer');
    }

    This method redirect referer.

    This method get your last access url.

    perldoc Sledge::Plugin::RedirectReferer

package Sledge::Plugin::RedirectReferer;
use strict;
use warnings;
use URI;

our $VERSION = '0.04';
our $LAST_URL_KEY = '_last_url';

sub import {
    my $self = shift;
    my $pkg  = caller;

    no strict 'refs';
    *{"$pkg\::redirect_referer"} = sub {
        my ($self , $url) = @_;
        my $redirect_url = $self->session->param( $LAST_URL_KEY ) ? $self->session->param( $LAST_URL_KEY )
                                                                  : $self->r->header_in('Referer');
        if ( $redirect_url ) {
            my $uri = URI->new($redirect_url);
            if ( $uri->host eq $self->r->hostname ) {
                return $self->redirect($uri->path_query);
            } else {
                return $self->redirect($uri->as_string);
            }
        } else {
            return $self->redirect($url);
        }
    };

    *{"$pkg\::last_access_url"} = sub {
        shift->session->param( $LAST_URL_KEY );
    };

    $pkg->register_hook(
        AFTER_OUTPUT => \&store_url,
    );
}

sub store_url {
    my $self = shift;
    $self->session->param( $LAST_URL_KEY => $self->current_url );
}

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# End of Sledge::Plugin::RedirectReferer