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>