1DBIx::Class::EncodedColUusmenr(3C)ontributed Perl DocumeDnBtIaxt:i:oCnlass::EncodedColumn(3)
2
6 DBIx::Class::EncodedColumn - Automatically encode columns
7
9 In your DBIx::Class Result class (sometimes erroneously referred to as
10 the 'table' class):
11 __PACKAGE__->load_components(qw/EncodedColumn ... Core/);
13 #Digest encoder with hex format and SHA-1 algorithm
15 __PACKAGE__->add_columns(
16 'password' => {
17 data_type => 'CHAR',
18 size => 40,
19 encode_column => 1,
20 encode_class => 'Digest',
21 encode_args => {algorithm => 'SHA-1', format => 'hex'},
22 }
23 #SHA-1 / hex encoding / generate check method
25 __PACKAGE__->add_columns(
26 'password' => {
27 data_type => 'CHAR',
28 size => 40 + 10,
29 encode_column => 1,
30 encode_class => 'Digest',
31 encode_args => {algorithm => 'SHA-1', format => 'hex', salt_length => 10},
32 encode_check_method => 'check_password',
33 }
34 #MD5 / base64 encoding / generate check method
36 __PACKAGE__->add_columns(
37 'password' => {
38 data_type => 'CHAR',
39 size => 22,
40 encode_column => 1,
41 encode_class => 'Digest',
42 encode_args => {algorithm => 'MD5', format => 'base64'},
43 encode_check_method => 'check_password',
44 }
45 #Eksblowfish bcrypt / cost of 8/ no key_nul / generate check method
47 __PACKAGE__->add_columns(
48 'password' => {
49 data_type => 'CHAR',
50 size => 59,
51 encode_column => 1,
52 encode_class => 'Crypt::Eksblowfish::Bcrypt',
53 encode_args => { key_nul => 0, cost => 8 },
54 encode_check_method => 'check_password',
55 }
56 In your application code:
58 #updating the value.
60 $row->password('plaintext');
61 my $digest = $row->password;
62 #checking against an existing value with a check_method
64 $row->check_password('old_password'); #true
65 $row->password('new_password');
66 $row->check_password('new_password'); #returns true
67 $row->check_password('old_password'); #returns false
68 Note: The component needs to be loaded before Core and other components
70 such as Timestamp. Core should always be last.
71 E.g:
73 __PACKAGE__->load_components(qw/EncodedColumn TimeStamp Core/);
74
76 This DBIx::Class component can be used to automatically encode a
77 column's contents whenever the value of that column is set.
78 This module is similar to the existing DBIx::Class::DigestColumns, but
80 there is some key differences:
81 "DigestColumns" performs the encode operation on "insert" and "update",
83 and "EncodedColumn" performs the operation when the value is set, or on
84 "new".
85 "DigestColumns" supports only algorithms of the Digest family.
86 "EncodedColumn" employs a set of thin wrappers around different cipher
87 modules to provide support for any cipher you wish to use and wrappers
88 are very simple to write (typically less than 30 lines).
89 "EncodedColumn" supports having more than one encoded column per table
90 and each column can use a different cipher.
91 "Encode" adds only one item to the namespace of the object utilizing it
92 ("_column_encoders").
93 There is, unfortunately, some features that "EncodedColumn" doesn't
95 support. "DigestColumns" supports changing certain options at runtime,
96 as well as the option to not automatically encode values on set. The
97 author of this module found these options to be non-essential and
98 omitted them by design.
99
101 If any one of these options is present the column will be treated as a
102 digest column and all of the defaults will be applied to the rest of
103 the options.
104 encode_enable => 1
106 Enable automatic encoding of column values. If this option is not set
107 to true any other options will become no-ops.
108 encode_check_method => $method_name
110 By using the encode_check_method attribute when you declare a column
111 you can create a check method for that column. The check method accepts
112 a plain text string, and returns a boolean that indicates whether the
113 digest of the provided value matches the current value.
114 encode_class
116 The class to use for encoding. Available classes are:
117 "Crypt::Eksblowfish::Bcrypt" - uses
119 DBIx::Class::EncodedColumn::Crypt::Eksblowfish::Bcrypt and requires
120 Crypt::Eksblowfish::Bcrypt to be installed
121 "Digest" - uses DBIx::Class::EncodedColumn::Digest requires Digest to
122 be installed as well as the algorithm required (Digest::SHA,
123 Digest::Whirlpool, etc)
124 "Crypt::OpenPGP" - DBIx::Class::EncodedColumn::Crypt::OpenPGP and
125 requires Crypt::OpenPGP to be installed
126 Please see the relevant class's documentation for information about the
128 specific arguments accepted by each and make sure you include the
129 encoding algorithm (e.g. Crypt::OpenPGP) in your application's
130 requirements.
131
133 The following DBIx::Class::ResultSource method is extended:
134 register_column - Handle the options described above.
136 The following DBIx::Class::Row methods are extended by this module:
138 new - Encode the columns on new() so that copy and create DWIM.
140 set_column - Encode values whenever column is set.
141
143 DBIx::Class::DigestColumns, DBIx::Class, Digest
144
146 Guillermo Roditi (groditi) <groditi@cpan.org>
147 Inspired by the original module written by Tom Kirkpatrick (tkp)
149 <tkp@cpan.org> featuring contributions from Guillermo Roditi (groditi)
150 <groditi@cpan.org> and Marc Mims <marc@questright.com>
151
153 jshirley - J. Shirley <cpan@coldhardcode.com>
154 kentnl - Kent Fredric <kentnl@cpan.org>
156 mst - Matt S Trout <mst@shadowcat.co.uk>
158 wreis - Wallace reis <wreis@cpan.org>
160
162 Copyright (c) the DBIx::Class::EncodedColumn "AUTHOR" and
163 "CONTRIBUTORS" as listed above.
164
166 This library is free software and may be distributed under the same
167 terms as perl itself.
168perl v5.28.1 2016-06-01 DBIx::Class::EncodedColumn(3)