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1 | |
2 | =pod |
3 | |
4 | =head1 NAME |
5 | |
6 | Catalyst::Authentication::Store::LDAP::User |
7 | - A User object representing an LDAP object. |
8 | |
9 | =head1 SYNOPSIS |
10 | |
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11 | You should be creating these objects through L<Catalyst::Authentication::Store::LDAP::Backend>'s "get_user" method, or just letting $c->authenticate do |
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12 | it for you. |
13 | |
14 | sub action : Local { |
15 | my ( $self, $c ) = @_; |
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16 | $c->authenticate({ |
17 | id => $c->req->param(username), |
18 | password => $c->req->param(password) |
19 | ); |
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20 | $c->log->debug($c->user->username . "is really neat!"); |
21 | } |
22 | |
23 | If you access just $c->user in a scalar context, it will return the current |
24 | username. |
25 | |
26 | =head1 DESCRIPTION |
27 | |
28 | This wraps up an LDAP object and presents a simplified interface to it's |
29 | contents. It uses some AUTOLOAD magic to pass method calls it doesn't |
30 | understand through as simple read only accessors for the LDAP entries |
31 | various attributes. |
32 | |
33 | It gets grumpy if you ask for an attribute via the AUTOLOAD mechanism |
34 | that it doesn't know about. Avoid that with using "has_attribute", |
35 | discussed in more detail below. |
36 | |
37 | You can skip all that and just go straight to the L<Net::LDAP::Entry> |
38 | object through the "ldap_entry" method: |
39 | |
40 | my $entry = $c->user->ldap_entry; |
41 | |
42 | It also has support for Roles. |
43 | |
44 | =cut |
45 | |
46 | package Catalyst::Authentication::Store::LDAP::User; |
47 | use base qw( Catalyst::Authentication::User Class::Accessor::Fast ); |
48 | |
49 | use strict; |
50 | use warnings; |
51 | |
821627ad |
52 | our $VERSION = '1.006'; |
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53 | |
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54 | BEGIN { __PACKAGE__->mk_accessors(qw/user store _ldap_connection_password/) } |
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55 | |
56 | use overload '""' => sub { shift->stringify }, fallback => 1; |
57 | |
58 | =head1 METHODS |
59 | |
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60 | =head2 new($store, $user, $c) |
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61 | |
62 | Takes a L<Catalyst::Authentication::Store::LDAP::Backend> object |
63 | as $store, and the data structure returned by that class's "get_user" |
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64 | method as $user. The final argument is an instance of your application, |
65 | which is passed along for those wanting to subclass User and perhaps use |
66 | models for fetching data. |
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67 | |
68 | Returns a L<Catalyst::Authentication::Store::LDAP::User> object. |
69 | |
70 | =cut |
71 | |
72 | sub new { |
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73 | my ( $class, $store, $user, $c ) = @_; |
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74 | |
75 | return unless $user; |
76 | |
77 | bless { store => $store, user => $user, }, $class; |
78 | } |
79 | |
80 | =head2 id |
81 | |
82 | Returns the results of the "stringify" method. |
83 | |
84 | =cut |
85 | |
86 | sub id { |
87 | my $self = shift; |
88 | return $self->stringify; |
89 | } |
90 | |
91 | =head2 stringify |
92 | |
93 | Uses the "user_field" configuration option to determine what the "username" |
94 | of this object is, and returns it. |
95 | |
96 | If you use the special value "dn" for user_field, it will return the DN |
97 | of the L<Net::LDAP::Entry> object. |
98 | |
99 | =cut |
100 | |
101 | sub stringify { |
102 | my ($self) = @_; |
103 | my $userfield = $self->store->user_field; |
104 | $userfield = $$userfield[0] if ref $userfield eq 'ARRAY'; |
105 | if ( $userfield eq "dn" ) { |
106 | my ($string) = $self->user->ldap_entry->dn; |
107 | return $string; |
108 | } |
109 | else { |
110 | my ($string) = $self->$userfield; |
111 | return $string; |
112 | } |
113 | } |
114 | |
115 | =head2 supported_features |
116 | |
117 | Returns hashref of features that this Authentication::User subclass supports. |
118 | |
119 | =cut |
120 | |
121 | sub supported_features { |
122 | return { |
123 | password => { self_check => 1, }, |
124 | session => 1, |
125 | roles => { self_check => 0, }, |
126 | }; |
127 | } |
128 | |
129 | =head2 check_password($password) |
130 | |
131 | Bind's to the directory as the DN of the internal L<Net::LDAP::Entry> object, |
132 | using the bind password supplied in $password. Returns 1 on a successful |
133 | bind, 0 on failure. |
134 | |
135 | =cut |
136 | |
137 | sub check_password { |
138 | my ( $self, $password ) = @_; |
139 | my $ldap |
140 | = $self->store->ldap_bind( undef, $self->ldap_entry->dn, $password, |
141 | 'forauth' ); |
142 | if ( defined($ldap) ) { |
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143 | if ($self->store->role_search_as_user) { |
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144 | # FIXME - This can be removed and made to use the code below.. |
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145 | # Have to do the role lookup _now_, as this is the only time |
146 | # that we have the user's password/ldap bind.. |
147 | $self->roles($ldap); |
148 | } |
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149 | # Stash a closure which can be used to retrieve the connection in the users context later. |
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150 | $self->_ldap_connection_password( sub { $password } ); # Close over |
151 | # password to try to ensure it doesn't come out in debug dumps |
152 | # or get serialized into sessions etc.. |
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153 | return 1; |
154 | } |
155 | else { |
156 | return 0; |
157 | } |
158 | } |
159 | |
160 | =head2 roles |
161 | |
162 | Returns the results of L<Catalyst::Authentication::Store::LDAP::Backend>'s "lookup_roles" method, an array of roles that are valid for this user. |
163 | |
164 | =cut |
165 | |
166 | sub roles { |
167 | my $self = shift; |
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168 | my $ldap = shift; |
169 | $self->{_roles} ||= [$self->store->lookup_roles($self, $ldap)]; |
170 | return @{$self->{_roles}}; |
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171 | } |
172 | |
173 | =head2 for_session |
174 | |
175 | Returns the User object, stringified. |
176 | |
177 | =cut |
178 | |
179 | sub for_session { |
180 | my $self = shift; |
181 | return $self->stringify; |
182 | } |
183 | |
184 | =head2 ldap_entry |
185 | |
186 | Returns the raw ldap_entry. |
187 | |
188 | =cut |
189 | |
190 | sub ldap_entry { |
191 | my $self = shift; |
192 | return $self->user->{'ldap_entry'}; |
193 | } |
194 | |
195 | =head2 attributes($type) |
196 | |
197 | Returns an array of attributes present for this user. If $type is "ashash", |
198 | it will return a hash with the attribute names as keys. (And the values of |
199 | those attributes as, well, the values of the hash) |
200 | |
201 | =cut |
202 | |
203 | sub attributes { |
204 | my ( $self, $type ) = @_; |
205 | if ( $type eq "ashash" ) { |
206 | return $self->user->{'attributes'}; |
207 | } |
208 | else { |
209 | return keys( %{ $self->user->{'attributes'} } ); |
210 | } |
211 | } |
212 | |
213 | =head2 has_attribute |
214 | |
215 | Returns the values for an attribute, or undef if that attribute is not present. |
216 | The safest way to get at an attribute. |
217 | |
218 | =cut |
219 | |
220 | sub has_attribute { |
221 | my ( $self, $attribute ) = @_; |
222 | if ( !defined($attribute) ) { |
223 | Catalyst::Exception->throw( |
224 | "You must provide an attribute to has_attribute!"); |
225 | } |
226 | if ( $attribute eq "dn" ) { |
227 | return $self->ldap_entry->dn; |
228 | } |
229 | elsif ( exists( $self->user->{'attributes'}->{$attribute} ) ) { |
230 | return $self->user->{'attributes'}->{$attribute}; |
231 | } |
232 | else { |
233 | return undef; |
234 | } |
235 | } |
236 | |
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237 | =head2 ldap_connection |
238 | |
239 | Re-binds to the auth store with the credentials of the user you logged in |
240 | as, and returns a L<Net::LDAP> object which you can use to do further queries. |
241 | |
242 | =cut |
243 | |
244 | sub ldap_connection { |
245 | my $self = shift; |
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246 | $self->store->ldap_bind( undef, $self->ldap_entry->dn, |
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247 | $self->_ldap_connection_password->() ); |
da0d62e4 |
248 | } |
249 | |
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250 | =head2 AUTOLOADed methods |
251 | |
252 | We automatically map the attributes of the underlying L<Net::LDAP::Entry> |
253 | object to read-only accessor methods. So, if you have an entry that looks |
254 | like this one: |
255 | |
256 | dn: cn=adam,ou=users,dc=yourcompany,dc=com |
257 | cn: adam |
258 | loginShell: /bin/zsh |
259 | homeDirectory: /home/adam |
260 | gecos: Adam Jacob |
261 | gidNumber: 100 |
262 | uidNumber: 1053 |
263 | mail: adam@yourcompany.com |
264 | uid: adam |
265 | givenName: Adam |
266 | sn: Jacob |
267 | objectClass: inetOrgPerson |
268 | objectClass: organizationalPerson |
269 | objectClass: Person |
270 | objectClass: Top |
271 | objectClass: posixAccount |
272 | |
273 | You can call: |
274 | |
275 | $c->user->homedirectory |
276 | |
277 | And you'll get the value of the "homeDirectory" attribute. Note that |
278 | all the AUTOLOADed methods are automatically lower-cased. |
279 | |
280 | =head2 Special Keywords |
281 | |
282 | The highly useful and common method "username" will map to the configured |
283 | value of user_field (uid by default.) |
284 | |
285 | $c->user->username == $c->user->uid |
286 | |
287 | =cut |
288 | |
289 | sub AUTOLOAD { |
290 | my $self = shift; |
291 | |
292 | ( my $method ) = ( our $AUTOLOAD =~ /([^:]+)$/ ); |
293 | |
294 | if ( $method eq "DESTROY" ) { |
295 | return; |
296 | } |
297 | if ( exists( $self->user->{'attributes'}->{$method} ) ) { |
298 | return $self->user->{'attributes'}->{$method}; |
299 | } |
300 | elsif ( $method eq "username" ) { |
301 | my $userfield = $self->store->user_field; |
302 | my $username = $self->has_attribute($userfield); |
303 | if ($username) { |
304 | return $username; |
305 | } |
306 | else { |
307 | Catalyst::Exception->throw( "User is missing the " |
308 | . $userfield |
309 | . " attribute, which should not be possible!" ); |
310 | } |
311 | } |
312 | else { |
313 | Catalyst::Exception->throw( |
314 | "No attribute $method for User " . $self->stringify ); |
315 | } |
316 | } |
317 | |
318 | 1; |
319 | |
320 | __END__ |
321 | |
322 | =head1 AUTHORS |
323 | |
324 | Adam Jacob <holoway@cpan.org> |
325 | |
326 | Some parts stolen shamelessly and entirely from |
327 | L<Catalyst::Plugin::Authentication::Store::Htpasswd>. |
328 | |
329 | Currently maintained by Peter Karman <karman@cpan.org>. |
330 | |
331 | =head1 THANKS |
332 | |
333 | To nothingmuch, ghenry, castaway and the rest of #catalyst for the help. :) |
334 | |
335 | =head1 SEE ALSO |
336 | |
337 | L<Catalyst::Authentication::Store::LDAP>, L<Catalyst::Authentication::Store::LDAP::Backend>, L<Catalyst::Plugin::Authentication>, L<Net::LDAP> |
338 | |
339 | =head1 COPYRIGHT & LICENSE |
340 | |
341 | Copyright (c) 2005 the aforementioned authors. All rights |
342 | reserved. This program is free software; you can redistribute |
343 | it and/or modify it under the same terms as Perl itself. |
344 | |
345 | =cut |
346 | |