/usr/share/perl5/Authen/Passphrase/Clear.pm is in libauthen-passphrase-perl 0.008-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | =head1 NAME
Authen::Passphrase::Clear - cleartext passphrases
=head1 SYNOPSIS
use Authen::Passphrase::Clear;
$ppr = Authen::Passphrase::Clear->new("passphrase");
if($ppr->match($passphrase)) { ...
$passphrase = $ppr->passphrase;
$userPassword = $ppr->as_rfc2307;
=head1 DESCRIPTION
An object of this class is a passphrase recogniser that accepts
some particular passphrase which it knows. This is a subclass of
L<Authen::Passphrase>, and this document assumes that the reader is
familiar with the documentation for that class.
I<Warning:> Storing a passphrase in cleartext, as this class does,
is a very bad idea. It means that anyone who sees the passphrase file
immediately knows all the passphrases. Do not use this unless you really
know what you're doing.
=cut
package Authen::Passphrase::Clear;
{ use 5.006; }
use warnings;
use strict;
use Authen::Passphrase 0.003;
use Carp qw(croak);
our $VERSION = "0.008";
use parent "Authen::Passphrase";
# An object of this class is a blessed scalar containing the passphrase.
=head1 CONSTRUCTORS
=over
=item Authen::Passphrase::Clear->new(PASSPHRASE)
Returns a passphrase recogniser object that stores the specified
passphrase in cleartext and accepts only that passphrase.
=cut
sub new {
my($class, $passphrase) = @_;
$passphrase = "$passphrase";
return bless(\$passphrase, $class);
}
=item Authen::Passphrase::Clear->from_rfc2307(USERPASSWORD)
Generates a cleartext passphrase recogniser from the supplied RFC2307
encoding. The string must consist of "B<{CLEARTEXT}>" (case insensitive)
followed by the passphrase.
=cut
sub from_rfc2307 {
my($class, $userpassword) = @_;
if($userpassword =~ /\A\{(?i:cleartext)\}/) {
$userpassword =~ /\A\{.*?\}([!-~]*)\z/
or croak "malformed {CLEARTEXT} data";
my $text = $1;
return $class->new($text);
}
return $class->SUPER::from_rfc2307($userpassword);
}
=back
=head1 METHODS
=over
=item $ppr->match(PASSPHRASE)
=item $ppr->passphrase
=item $ppr->as_rfc2307
These methods are part of the standard L<Authen::Passphrase> interface.
The L</passphrase> method trivially works.
=cut
sub match {
my($self, $passphrase) = @_;
return $passphrase eq $$self;
}
sub passphrase { ${$_[0]} }
sub as_rfc2307 {
my($self) = @_;
croak "can't put this passphrase into an RFC 2307 string"
if $$self =~ /[^!-~]/;
return "{CLEARTEXT}".$$self;
}
=back
=head1 SEE ALSO
L<Authen::Passphrase>
=head1 AUTHOR
Andrew Main (Zefram) <zefram@fysh.org>
=head1 COPYRIGHT
Copyright (C) 2006, 2007, 2009, 2010, 2012
Andrew Main (Zefram) <zefram@fysh.org>
=head1 LICENSE
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
1;
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