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1 | # -*-perl-*- |
2 | # |
3 | # $Id$ |
4 | # |
5 | # Key management |
6 | # |
7 | # (c) 2004 Straylight/Edgeware |
8 | # |
9 | |
10 | #----- Licensing notice ----------------------------------------------------- |
11 | # |
12 | # This file is part of the Perl interface to Catacomb. |
13 | # |
14 | # Catacomb/Perl is free software; you can redistribute it and/or modify |
15 | # it under the terms of the GNU General Public License as published by |
16 | # the Free Software Foundation; either version 2 of the License, or |
17 | # (at your option) any later version. |
18 | # |
19 | # Catacomb/Perl is distributed in the hope that it will be useful, |
20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | # GNU General Public License for more details. |
23 | # |
24 | # You should have received a copy of the GNU General Public License |
25 | # along with Catacomb/Perl; if not, write to the Free Software Foundation, |
26 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | |
28 | #----- Key data ------------------------------------------------------------- |
29 | |
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30 | package Catacomb::Key::Data::StructTie; |
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31 | use Carp; |
32 | use Catacomb::Base; |
33 | |
34 | sub TIEHASH { bless [$_[1], []], $_[0]; } |
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35 | sub FETCH { $_[0][0]->find($_[1]); } |
36 | sub EXISTS { !!$_[0][0]->find($_[1]); } |
37 | sub DELETE { $_[0][0]->del($_[1]); } |
38 | sub STORE { $_[0][0]->find($_[1], $_[2]); } |
39 | |
40 | sub CLEAR { |
41 | my ($me) = @_; |
42 | my $kd = $me->[0]; |
43 | my $i = $kd->iterate(); |
44 | $kd->del($k) while my $k = $i->next(); |
45 | 1; |
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46 | } |
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47 | |
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48 | sub FIRSTKEY { |
49 | my ($me) = @_; |
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50 | my $kd = $me->[0]; |
51 | my $i = $kd->iterate(); |
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52 | my @k = (); |
53 | while (my $k = $i->next()) { |
54 | push(@k, $k); |
55 | } |
56 | $me->[1] = \@k; |
57 | return shift(@k); |
58 | } |
59 | sub NEXTKEY { shift(@{$_[0][1]}); } |
60 | |
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61 | package Catacomb::Key::Data::Structured; |
62 | sub open { my %h; tie %h, Catacomb::Key::Data::StructTie, $_[0]; \%h; } |
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63 | |
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64 | foreach $i (qw(Binary Encrypted MP EC String Structured)) { |
65 | @{"Catacomb::Key::Data::${i}::ISA"} = qw(Catacomb::Key::Data); |
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66 | } |
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67 | |
68 | #----- Actual keys ---------------------------------------------------------- |
69 | |
70 | package Catacomb::Key::Attrs; |
71 | use Carp; |
72 | |
73 | sub TIEHASH { bless [$_[1], []], $_[0]; } |
74 | sub FETCH { $_[0][0]->getattr($_[1]); } |
75 | sub EXISTS { defined($_[0][0]->getattr($_[1])); } |
76 | sub STORE { $_[0][0]->putattr($_[1], $_[2]); } |
77 | sub DELETE { $_[0][0]->putattr($_[1]); } |
78 | sub FIRSTKEY { |
79 | my ($me) = @_; |
80 | my $k = $me->[0]; |
81 | my $i = $k->attriter(); |
82 | my @a; |
83 | while (my $a = $i->next()) { push(@a, $a); } |
84 | $me->[1] = \@a; |
85 | return shift(@a); |
86 | } |
87 | sub NEXTKEY { shift(@{$_[0][1]}); } |
88 | |
89 | package Catacomb::Key; |
90 | |
91 | sub attrs { |
92 | croak("Usage: Catacomb::Key::attrs(k)") unless @_ == 1; |
93 | my %a; |
94 | tie %a, Catacomb::Key::Attrs, @_; |
95 | return \%a; |
96 | } |
97 | |
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98 | #----- That's all, folks ---------------------------------------------------- |
99 | |
100 | 1; |