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package Data::Session::ID::MD5;
use parent 'Data::Session::ID';
no autovivification;
use strict;
use warnings;
use Digest::MD5;
use Hash::FieldHash ':all';
our $errstr = '';
our $VERSION = '1.18';
# -----------------------------------------------
sub generate
{
my($self) = @_;
return Digest::MD5 -> new -> add($$, time, rand(time) ) -> hexdigest;
} # End of generate.
# -----------------------------------------------
sub id_length
{
my($self) = @_;
return 32;
} # End of id_length.
# -----------------------------------------------
sub new
{
my($class, %arg) = @_;
$arg{verbose} ||= 0;
return from_hash(bless({}, $class), \%arg);
} # End of new.
# -----------------------------------------------
1;
=pod
=head1 NAME
L<Data::Session::ID::MD5> - A persistent session manager
=head1 Synopsis
See L<Data::Session> for details.
=head1 Description
L<Data::Session::ID::MD5> allows L<Data::Session> to generate session ids using L<Digest::MD5>.
To use this module do this:
=over 4
=item o Specify an id generator of type MD5, as Data::Session -> new(type => '... id:MD5 ...')
=back
=head1 Case-sensitive Options
See L<Data::Session/Case-sensitive Options> for important information.
=head1 Method: new()
Creates a new object of type L<Data::Session::ID::MD5>.
C<new()> takes a hash of key/value pairs, some of which might mandatory. Further, some combinations
might be mandatory.
The keys are listed here in alphabetical order.
They are lower-case because they are (also) method names, meaning they can be called to set or get
the value at any time.
=over 4
=item o verbose => $integer
Print to STDERR more or less information.
Typical values are 0, 1 and 2.
This key is normally passed in as Data::Session -> new(verbose => $integer).
This key is optional.
=back
=head1 Method: generate()
Generates the next session id, or dies if it can't.
The algorithm is Digest::MD5 -> new -> add($$, time, rand(time) ) -> hexdigest.
Returns the new id.
=head1 Method: id_length()
Returns 32 because that's the number of hex digits in a MD5 digest.
This can be used to generate the SQL to create the sessions table.
See scripts/digest.pl.
=head1 Support
Log a bug on RT: L<https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Session>.
=head1 Author
L<Data::Session> was written by Ron Savage I<E<lt>ron@savage.net.auE<gt>> in 2010.
Home page: L<http://savage.net.au/index.html>.
=head1 Copyright
Australian copyright (c) 2010, Ron Savage.
All Programs of mine are 'OSI Certified Open Source Software';
you can redistribute them and/or modify them under the terms of
The Artistic License, a copy of which is available at:
http://www.opensource.org/licenses/index.html
=cut
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