1 package Catalyst::Authentication::Credential::OpenID;
4 use base "Class::Accessor::Fast";
6 __PACKAGE__->mk_accessors(qw/
16 flatten_extensions_into_user
19 our $VERSION = "0.18";
21 use Net::OpenID::Consumer;
22 use Catalyst::Exception ();
25 my ( $class, $config, $c, $realm ) = @_;
32 # 2.0 spec says "SHOULD" be named "openid_identifier."
33 $self->{openid_field} ||= "openid_identifier";
35 my $secret = $self->{consumer_secret} ||= join("+",
38 sort keys %{ $c->config }
41 $secret = substr($secret,0,255) if length $secret > 255;
42 $self->secret($secret);
43 # If user has no preference we prefer L::PA b/c it can prevent DoS attacks.
44 my $ua_class = $self->{ua_class} ||= eval "use LWPx::ParanoidAgent" ?
45 "LWPx::ParanoidAgent" : "LWP::UserAgent";
47 my $agent_class = $self->ua_class;
48 eval "require $agent_class"
49 or Catalyst::Exception->throw("Could not 'require' user agent class " .
52 $c->log->debug("Setting consumer secret: " . $secret) if $self->debug;
58 my ( $self, $c, $realm, $authinfo ) = @_;
60 $c->log->debug("authenticate() called from " . $c->request->uri) if $self->debug;
62 my $field = $self->openid_field;
64 my $claimed_uri = $authinfo->{ $field };
66 # Its security related so we want to be explicit about GET/POST param retrieval.
67 $claimed_uri ||= $c->req->method eq 'GET' ?
68 $c->req->query_params->{ $field } : $c->req->body_params->{ $field };
71 my $csr = Net::OpenID::Consumer->new(
72 ua => $self->ua_class->new(%{$self->ua_args || {}}),
73 args => $c->req->params,
74 consumer_secret => $self->secret,
77 if ( $self->extension_args )
79 $c->log->warn("The configuration key 'extension_args' is ignored; use 'extensions'");
82 my %extensions = ref($self->extensions) eq "HASH" ?
83 %{ $self->extensions } : ref($self->extensions) eq "ARRAY" ?
84 @{ $self->extensions } : ();
88 my $current = $c->uri_for("/" . $c->req->path); # clear query/fragment...
90 my $identity = $csr->claimed_identity($claimed_uri);
93 if ( $self->errors_are_fatal )
95 Catalyst::Exception->throw($csr->err);
99 $c->log->error($csr->err . " -- $claimed_uri");
104 for my $key ( keys %extensions )
106 $identity->set_extension_args($key, $extensions{$key});
109 my $check_url = $identity->check_url(
110 return_to => $current . '?openid-check=1',
111 trust_root => $self->trust_root || $current,
114 $c->res->redirect($check_url);
117 elsif ( $c->req->params->{'openid-check'} )
119 if ( my $setup_url = $csr->user_setup_url )
121 $c->res->redirect($setup_url);
124 elsif ( $csr->user_cancel )
128 elsif ( my $identity = $csr->verified_identity )
130 # This is where we ought to build an OpenID user and verify against the spec.
131 my $user = +{ map { $_ => scalar $identity->$_ }
132 qw( url display rss atom foaf declared_rss declared_atom declared_foaf foafmaker ) };
133 # Dude, I did not design the array as hash spec. Don't curse me [apv].
134 for my $key ( keys %extensions )
136 my $vals = $identity->signed_extension_fields($key);
137 $user->{extensions}->{$key} = $vals;
138 if ( $self->flatten_extensions_into_user )
140 $user->{$_} = $vals->{$_} for keys %{$vals};
144 my $user_obj = $realm->find_user($user, $c);
152 $c->log->debug("Verified OpenID identity failed to load with find_user; bad user_class? Try 'Null.'") if $self->debug;
158 $self->errors_are_fatal ?
159 Catalyst::Exception->throw("Error validating identity: " . $csr->err)
161 $c->log->error( $csr->err);
173 Catalyst::Authentication::Credential::OpenID - OpenID credential for Catalyst::Plugin::Authentication framework.
175 =head1 BACKWARDS COMPATIBILITY CHANGES
177 =head2 EXTENSION_ARGS v EXTENSIONS
179 B<NB>: The extensions were previously configured under the key C<extension_args>. They are now configured under C<extensions>. C<extension_args> is no longer honored.
181 As previously noted, L</EXTENSIONS TO OPENID>, I have not tested the extensions. I would be grateful for any feedback or, better, tests.
185 The problems encountered by failed OpenID operations have always been fatals in the past. This is unexpected behavior for most users as it differs from other credentials. Authentication errors here are no longer fatal. Debug/error output is improved to offset the loss of information. If for some reason you would prefer the legacy/fatal behavior, set the configuration variable C<errors_are_fatal> to a true value.
194 Session::Store::FastMmap
195 Session::State::Cookie
198 Somewhere in myapp.conf-
200 <Plugin::Authentication>
206 ua_class LWP::UserAgent
210 </Plugin::Authentication>
212 Or in your myapp.yml if you're using L<YAML> instead-
214 Plugin::Authentication:
215 default_realm: openid
220 ua_class: LWP::UserAgent
222 In a controller, perhaps C<Root::openid>-
227 if ( $c->authenticate() )
229 $c->flash(message => "You signed in with OpenID!");
230 $c->res->redirect( $c->uri_for('/') );
234 # Present OpenID form.
238 And a L<Template> to match in C<openid.tt>-
240 <form action="[% c.uri_for('/openid') %]" method="GET" name="openid">
241 <input type="text" name="openid_identifier" class="openid" />
242 <input type="submit" value="Sign in with OpenID" />
247 This is the B<third> OpenID related authentication piece for
248 L<Catalyst>. The first E<mdash> L<Catalyst::Plugin::Authentication::OpenID>
249 by Benjamin Trott E<mdash> was deprecated by the second E<mdash>
250 L<Catalyst::Plugin::Authentication::Credential::OpenID> by Tatsuhiko
251 Miyagawa E<mdash> and this is an attempt to deprecate both by conforming to
252 the newish, at the time of this module's inception, realm-based
253 authentication in L<Catalyst::Plugin::Authentication>.
255 1. Catalyst::Plugin::Authentication::OpenID
256 2. Catalyst::Plugin::Authentication::Credential::OpenID
257 3. Catalyst::Authentication::Credential::OpenID
259 The benefit of this version is that you can use an arbitrary number of
260 authentication systems in your L<Catalyst> application and configure
261 and call all of them in the same way.
263 Note that both earlier versions of OpenID authentication use the method
264 C<authenticate_openid()>. This module uses C<authenticate()> and
265 relies on you to specify the realm. You can specify the realm as the
266 default in the configuration or inline with each
267 C<authenticate()> call; more below.
269 This module functions quite differently internally from the others.
270 See L<Catalyst::Plugin::Authentication::Internals> for more about this
277 =item $c->authenticate({},"your_openid_realm");
279 Call to authenticate the user via OpenID. Returns false if
280 authorization is unsuccessful. Sets the user into the session and
281 returns the user object if authentication succeeds.
283 You can see in the call above that the authentication hash is empty.
284 The implicit OpenID parameter is, as the 2.0 specification says it
285 SHOULD be, B<openid_identifier>. You can set it anything you like in
286 your realm configuration, though, under the key C<openid_field>. If
287 you call C<authenticate()> with the empty info hash and no configured
288 C<openid_field> then only C<openid_identifier> is checked.
290 It implicitly does this (sort of, it checks the request method too)-
292 my $claimed_uri = $c->req->params->{openid_identifier};
293 $c->authenticate({openid_identifier => $claimed_uri});
295 =item Catalyst::Authentication::Credential::OpenID->new()
297 You will never call this. Catalyst does it for you. The only important
298 thing you might like to know about it is that it merges its realm
299 configuration with its configuration proper. If this doesn't mean
300 anything to you, don't worry.
306 Currently the only supported user class is L<Catalyst::Plugin::Authentication::User::Hash>.
312 =item $c->user->display
320 =item $c->user->declared_rss
322 =item $c->user->declared_atom
324 =item $c->user->declared_foaf
326 =item $c->user->foafmaker
330 See L<Net::OpenID::VerifiedIdentity> for details.
334 Catalyst authentication is now configured entirely from your
335 application's configuration. Do not, for example, put
336 C<Credential::OpenID> into your C<use Catalyst ...> statement.
337 Instead, tell your application that in one of your authentication
338 realms you will use the credential.
340 In your application the following will give you two different
341 authentication realms. One called "members" which authenticates with
342 clear text passwords and one called "openid" which uses... uh, OpenID.
346 "Plugin::Authentication" => {
347 default_realm => "members",
352 password_field => "password",
353 password_type => "clear"
359 password => "l4s4v3n7ur45",
370 consumer_secret => "Don't bother setting",
371 ua_class => "LWP::UserAgent",
372 # whitelist is only relevant for LWPx::ParanoidAgent
374 whitelisted_hosts => [qw/ 127.0.0.1 localhost /],
377 'http://openid.net/extensions/sreg/1.1',
380 optional => 'fullname,nickname,timezone',
389 This is the same configuration in the default L<Catalyst> configuration format from L<Config::General>.
392 <Plugin::Authentication>
393 default_realm members
400 password l4s4v3n7ur45
405 password_field password
417 whitelisted_hosts 127.0.0.1
418 whitelisted_hosts localhost
420 consumer_secret Don't bother setting
421 ua_class LWP::UserAgent
423 http://openid.net/extensions/sreg/1.1
425 optional fullname,nickname,timezone
430 </Plugin::Authentication>
432 And now, the same configuration in L<YAML>. B<NB>: L<YAML> is whitespace sensitive.
435 Plugin::Authentication:
436 default_realm: members
441 password_field: password
447 password: l4s4v3n7ur45
453 consumer_secret: Don't bother setting
454 ua_class: LWP::UserAgent
456 # whitelist is only relevant for LWPx::ParanoidAgent
461 - http://openid.net/extensions/sreg/1.1
463 optional: fullname,nickname,timezone
465 B<NB>: There is no OpenID store yet.
467 You can set C<trust_root> now too. This is experimental and I have no idea if it's right or could be better. Right now it must be a URI. It was submitted as a path but this seems to limit it to the Catalyst app and while easier to dynamically generate no matter where the app starts, it seems like the wrong way to go. Let me know if that's mistaken.
469 =head2 EXTENSIONS TO OPENID
471 The Simple Registration--L<http://openid.net/extensions/sreg/1.1>--(SREG) extension to OpenID is supported in the L<Net::OpenID> family now. Experimental support for it is included here as of v0.12. SREG is the only supported extension in OpenID 1.1. It's experimental in the sense it's a new interface and barely tested. Support for OpenID extensions is here to stay.
473 Google's OpenID is also now supported. Uh, I think.
475 Here is a snippet from Thorben JE<auml>ndling combining Sreg and Google's extenstionsE<ndash>
477 'Plugin::Authentication' => {
481 ua_class => 'LWP::UserAgent',
483 'http://openid.net/extensions/sreg/1.1' => {
484 required => 'nickname,email,fullname',
485 optional => 'timezone,language,dob,country,gender'
487 'http://openid.net/srv/ax/1.0' => {
488 mode => 'fetch_request',
489 'type.nickname' => 'http://axschema.org/namePerson/friendly',
490 'type.email' => 'http://axschema.org/contact/email',
491 'type.fullname' => 'http://axschema.org/namePerson',
492 'type.firstname' => 'http://axschema.org/namePerson/first',
493 'type.lastname' => 'http://axschema.org/namePerson/last',
494 'type.dob' => 'http://axschema.org/birthDate',
495 'type.gender' => 'http://axschema.org/person/gender',
496 'type.country' => 'http://axschema.org/contact/country/home',
497 'type.language' => 'http://axschema.org/pref/language',
498 'type.timezone' => 'http://axschema.org/pref/timezone',
499 required => 'nickname,fullname,email,firstname,lastname',
500 if_available => 'dob,gender,country,language,timezone',
505 default_realm => 'openid',
509 =head2 MORE ON CONFIGURATION
513 =item ua_args and ua_class
515 L<LWPx::ParanoidAgent> is the default agent E<mdash> C<ua_class> E<mdash> if it's available, L<LWP::UserAgent> if not. You don't have to set it. I recommend that you do B<not> override it. You can with any well behaved L<LWP::UserAgent>. You probably should not. L<LWPx::ParanoidAgent> buys you many defenses and extra security checks. When you allow your application users freedom to initiate external requests, you open an avenue for DoS (denial of service) attacks. L<LWPx::ParanoidAgent> defends against this. L<LWP::UserAgent> and any regular subclass of it will not.
517 =item consumer_secret
519 The underlying L<Net::OpenID::Consumer> object is seeded with a secret. If it's important to you to set your own, you can. The default uses this package name + its version + the sorted configuration keys of your Catalyst application (chopped at 255 characters if it's longer). This should generally be superior to any fixed string.
525 Option to suppress fatals.
527 Support more of the new methods in the L<Net::OpenID> kit.
529 There are some interesting implications with this sort of setup. Does a user aggregate realms or can a user be signed in under more than one realm? The documents could contain a recipe of the self-answering OpenID end-point that is in the tests.
531 Debug statements need to be both expanded and limited via realm configuration.
533 Better diagnostics in errors. Debug info at all consumer calls.
535 Roles from provider domains? Mapped? Direct? A generic "openid" auto_role?
539 To Benjamin Trott (L<Catalyst::Plugin::Authentication::OpenID>), Tatsuhiko Miyagawa (L<Catalyst::Plugin::Authentication::Credential::OpenID>), Brad Fitzpatrick for the great OpenID stuff, Martin Atkins for picking up the code to handle OpenID 2.0, and Jay Kuri and everyone else who has made Catalyst such a wonderful framework.
541 Menno Blom provided a bug fix and the hook to use OpenID extensions.
543 =head1 LICENSE AND COPYRIGHT
545 Copyright (c) 2008-2009, Ashley Pond V C<< <ashley@cpan.org> >>. Some of Tatsuhiko Miyagawa's work is reused here.
547 This module is free software; you can redistribute it and modify it under the same terms as Perl itself. See L<perlartistic>.
549 =head1 DISCLAIMER OF WARRANTY
551 Because this software is licensed free of charge, there is no warranty for the software, to the extent permitted by applicable law. Except
552 when otherwise stated in writing the copyright holders and other parties provide the software "as is" without warranty of any kind, either
553 expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The
554 entire risk as to the quality and performance of the software is with you. Should the software prove defective, you assume the cost of all
555 necessary servicing, repair, or correction.
557 In no event unless required by applicable law or agreed to in writing will any copyright holder, or any other party who may modify or
558 redistribute the software as permitted by the above license, be liable to you for damages, including any general, special, incidental, or
559 consequential damages arising out of the use or inability to use the software (including but not limited to loss of data or data being
560 rendered inaccurate or losses sustained by you or third parties or a failure of the software to operate with any other software), even if
561 such holder or other party has been advised of the possibility of such damages.
569 L<Net::OpenID::Server>, L<Net::OpenID::VerifiedIdentity>, L<Net::OpenID::Consumer>, L<http://openid.net/>,
570 L<http://openid.net/developers/specs/>, and L<http://openid.net/extensions/sreg/1.1>.
572 =item Catalyst Authentication
574 L<Catalyst>, L<Catalyst::Plugin::Authentication>, L<Catalyst::Manual::Tutorial::Authorization>, and
575 L<Catalyst::Manual::Tutorial::Authentication>.
577 =item Catalyst Configuration
579 L<Catalyst::Plugin::ConfigLoader>, L<Config::General>, and L<YAML>.
583 L<Catalyst::Manual::Tutorial>, L<Template>, L<LWPx::ParanoidAgent>.