IO::Socket::SSL::PublicSuffix - provide access to Mozilla's list of effective TLD names
# use builtin default
use IO::Socket::SSL::PublicSuffix;
$ps = IO::Socket::SSL::PublicSuffix->default;
# load from string
$ps = IO::Socket::SSL::PublicSuffix->from_string("*.uk\n*");
# load from file or file handle
$ps = IO::Socket::SSL::PublicSuffix->from_file($filename);
$ps = IO::Socket::SSL::PublicSuffix->from_file(\*STDIN);
# --- string in -> string out
# $rest -> whatever.host
# $tld -> co.uk
my ($rest,$tld) = $ps->public_suffix('whatever.host.co.uk');
my $tld = $ps->public_suffix('whatever.host.co.uk');
# $root_domain -> host.co.uk
my $root_domain = $ps->public_suffix('whatever.host.co.uk', 1);
# --- array in -> array out
# $rest -> [qw(whatever host)]
# $tld -> [qw(co uk)]
my ($rest,$tld) = $ps->public_suffix([qw(whatever host co uk)]);
----
# To update this file with the current list:
perl -MIO::Socket::SSL::PublicSuffix -e 'IO::Socket::SSL::PublicSuffix::update_self_from_url()'
This module uses the list of effective top level domain names from the mozilla project to determine the public top level domain for a given hostname.
Returns object with builtin default. min_suffix can be given in %args to specify the minimal suffix, default is 1.
Returns object with configuration from string. See method default for %args.
Returns object with configuration from file or file handle. See method default for %args.
In array context the function returns the non-tld part and the tld part of the given hostname, in scalar context only the tld part. It adds $add parts of the non-tld part to the tld, e.g. with $add=1 it will return the root domain.
If there were no explicit matches against the public suffix configuration it will fall back to a suffix of length 1.
The function accepts a string or an array-ref (e.g. host split by .). In the first case it will return string(s), in the latter case array-ref(s).
International hostnames or labels can be in ASCII (IDNA form starting with xn--) or unicode. In the latter case an IDNA handling library needs to be available. URI is preferred, but Net::IDN:::Encode, Net::LibIDN are still supported.
Returns true if IDN support is available.
http://publicsuffix.org/list/effective_tld_names.dat
Domain::PublicSuffix, Mozilla::PublicSuffix
Q: Why yet another module, we already have L<Domain::PublicSuffix> and L<Mozilla::PublicSuffix>. A: Because the public suffix data change more often than these modules do, IO::Socket::SSL needs this list and it is more easy this way to keep it up-to-date.
Steffen Ullrich