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Courier::Filter::Util - Utility class used by the Courier::Filter framework

Courier::Filter::Util(3pm) User Contributed Perl Documentation Courier::Filter::Util(3pm)

NAME

Courier::Filter::Util - Utility class used by the Courier::Filter framework

SYNOPSIS

    use Courier::Filter::Util qw(
        ipv4_address_pattern
        ipv6_address_pattern
        loopback_address_pattern
    );
    
    $message->remote_host =~ / ^ (?: ::ffff: )? $(\ipv4_address_pattern} $ /x;
    $message->remote_host =~ / ^ $(\ipv6_address_pattern} $ /x;
    $message->remote_host =~ / ^ ${\loopback_address_pattern} $ /x;

DESCRIPTION

Courier::Filter::Util is Courier::Filter's utility class.

Constants

The following constants are provided:
ipv4_address_pattern
A regular expression matching an IPv4 address in "dotted decimal" notation.
ipv6_address_pattern
A regular expression matching an IPv6 address in full RFC 4291 syntax.
loopback_address_pattern
A regular expression matching an IPv4 or IPv6 loopback address ("127.n.n.n", "::ffff:127.n.n.n.n", "::1").

SEE ALSO

Courier::Filter.
For AVAILABILITY, SUPPORT, and LICENSE information, see Courier::Filter::Overview.

AUTHOR

Julian Mehnle <julian@mehnle.net>
2015-11-28 perl v5.20.2