/usr/share/perl5/Web/ID/Certificate.pm is in libweb-id-perl 1.922-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use 5.010;
use utf8;
BEGIN {
$Web::ID::Certificate::AUTHORITY = 'cpan:TOBYINK';
$Web::ID::Certificate::VERSION = '1.922';
}
use Crypt::X509 0.50 (); # why the hell does this export anything?!
use DateTime 0;
use MooseX::Types::Moose -all;
use Digest::SHA qw(sha1_hex);
use MIME::Base64 0 qw(decode_base64);
use Web::ID::Types -all;
use Web::ID::SAN;
use Web::ID::SAN::Email;
use Web::ID::SAN::URI;
use Web::ID::Util qw(:default part);
# Partly sorts a list of Web::ID::SAN objects,
# prioritising URIs and Email addresses.
#
sub _sort_san
{
map { ref($_) eq 'ARRAY' ? (@$_) : () }
part {
if ($_->isa('Web::ID::SAN::URI')) { 0 }
elsif ($_->isa('Web::ID::SAN::Email')) { 1 }
else { 2 }
}
@_;
}
use Moose;
use namespace::sweep -also => '_sort_san';
has pem => (
is => read_only,
isa => Str,
required => true,
coerce => false,
);
has _der => (
is => read_only,
isa => Str,
required => true,
lazy_build => true,
);
has _x509 => (
is => read_only,
isa => 'Crypt::X509',
lazy_build => true,
);
has public_key => (
is => read_only,
isa => Rsakey,
lazy_build => true,
handles => [qw(modulus exponent)],
);
has subject_alt_names => (
is => read_only,
isa => ArrayRef,
lazy_build => true,
);
has $_ => (
is => read_only,
isa => Datetime,
lazy_build => true,
coerce => true,
) for qw( not_before not_after );
has san_factory => (
is => read_only,
isa => CodeRef,
lazy_build => true,
);
has fingerprint => (
is => read_only,
isa => Str,
lazy_build => true,
);
sub _build_fingerprint
{
lc sha1_hex( shift->_der );
}
sub _build__der
{
my @lines = split /\n/, shift->pem;
decode_base64(join "\n", grep { !/--(BEGIN|END) CERTIFICATE--/ } @lines);
}
sub _build__x509
{
return Crypt::X509->new(cert => shift->_der);
}
sub _build_public_key
{
my ($self) = @_;
Web::ID::RSAKey->new($self->_x509->pubkey_components);
}
sub _build_subject_alt_names
{
my ($self) = @_;
my $factory = $self->san_factory;
[_sort_san(
map {
my ($type, $value) = split /=/, $_, 2;
$factory->(type => $type, value => $value);
}
@{ $self->_x509->SubjectAltName }
)];
}
sub _build_not_before
{
my ($self) = @_;
return $self->_x509->not_before;
}
sub _build_not_after
{
my ($self) = @_;
return $self->_x509->not_after;
}
my $default_san_factory = sub
{
my (%args) = @_;
my $class = {
uniformResourceIdentifier => 'Web::ID::SAN::URI',
rfc822Name => 'Web::ID::SAN::Email',
}->{ $args{type} }
// 'Web::ID::SAN';
$class->new(%args);
};
sub _build_san_factory
{
return $default_san_factory;
}
sub timely
{
my ($self, $now) = @_;
$now //= DateTime->now;
return if $now > $self->not_after;
return if $now < $self->not_before;
return $self;
}
__PACKAGE__
__END__
=head1 NAME
Web::ID::Certificate - an x509 certificate
=head1 SYNOPSIS
my $cert = Web::ID::Certificate->new(pem => $pem_encoded_x509);
foreach (@{ $cert->subject_alt_names })
{
say "SAN: ", $_->type, " = ", $_->value;
}
=head1 DESCRIPTION
=head2 Constructor
=over
=item C<< new >>
Standard Moose-style constructor.
=back
=head2 Attributes
=over
=item C<< pem >>
A PEM-encoded string for the certificate.
This is usually the only attribute you want to pass to the constructor.
Allow the others to be built automatically.
=item C<< public_key >>
A L<Web::ID::RSAKey> object.
=item C<< fingerprint >>
A string identifier for the certificate. It is the lower-cased
hexadecimal SHA1 hash of the DER-encoded certificate.
This is not used in WebID authentication, but may be used as an
identifier for the certificate if you need to keep it in a cache.
=item C<< not_before >>
L<DateTime> object indicating when the certificate started (or will
start) to be valid.
=item C<< not_after >>
L<DateTime> object indicating when the certificate will cease (or
has ceased) to be valid.
=item C<< subject_alt_names >>
An arrayref containing a list of subject alt names (L<Web::ID::SAN>
objects) associated with the certificate. These are sorted in the order
they'll be tried for WebID authentication.
=item C<< san_factory >>
A coderef used for building L<Web::ID::SAN> objects. It's very unlikely
you need to play with this - the default is probably OK. But changing this
is "supported" (in so much as any of this is supported).
The coderef is passed a hash (not hashref) along the lines of:
(
type => 'uniformResourceIdentifier',
value => 'http://example.com/id/alice',
)
=back
=head2 Methods
=over
=item C<< timely >>
Checks C<not_before> and C<not_after> against the current system time to
indicate whether the certifixate is temporally valid. Returns a boolean.
You can optionally pass it a L<DateTime> object to use instead of the
current system time.
=item C<< exponent >>
Delegated to the C<public_key> attribute.
=item C<< modulus >>
Delegated to the C<public_key> attribute.
=back
=head1 BUGS
Please report any bugs to
L<http://rt.cpan.org/Dist/Display.html?Queue=Web-ID>.
=head1 SEE ALSO
L<Web::ID>,
L<Web::ID::SAN>,
L<Web::ID::RSAKey>.
L<Web::ID::Certificate::Generator> - augments this class to add the
ability to generate new WebID certificates.
L<Crypt::X509> provides a pure Perl X.509 certificate parser, and is
used internally by this module.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2012 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=head1 DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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