IO::Socket::SSL::PublicSuffix(3User Contributed Perl DocumentatIO::Socket::SSL::PublicSuffix(3pm) NAME IO::Socket::SSL::PublicSuffix - provide access to Mozilla's list of effective TLD names SYNOPSIS # 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()' DESCRIPTION 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. Method class->default(%args) Returns object with builtin default. "min_suffix" can be given in %args to specify the minimal suffix, default is 1. class->from_string(string,%args) Returns object with configuration from string. See method "default" for %args. class->from_file( file name| file handle, %args ) Returns object with configuration from file or file handle. See method "default" for %args. $self->public_suffix( $host|\@host, [ $add ] ) 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. ($self|class)->can_idn Returns true if IDN support is available. FILES http://publicsuffix.org/list/effective_tld_names.dat SEE ALSO Domain::PublicSuffix, Mozilla::PublicSuffix BUGS 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. AUTHOR Steffen Ullrich perl v5.32.1 2022-01-13 IO::Socket::SSL::PublicSuffix(3pm)
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