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[git.ikiwiki.info.git] / IkiWiki / Plugin / openid.pm

diff --git a/IkiWiki/Plugin/openid.pm b/IkiWiki/Plugin/openid.pm
index 55b1c4b1729cfa0ef97bf704dd182340eff33ab7..b1a9a7a152866090f2008f0c5ef8ba94771a929a 100644 (file)
--- a/IkiWiki/Plugin/openid.pm
+++ b/IkiWiki/Plugin/openid.pm
@@ -4,71 +4,227 @@ package IkiWiki::Plugin::openid;
 
 use warnings;
 use strict;
 
 use warnings;
 use strict;

-use IkiWiki;
+use IkiWiki 3.00;

 
 

-sub import { #{{{
-       hook(type => "checkconfig", id => "smiley", call => \&checkconfig);
-       hook(type => "auth", id => "skeleton", call => \&auth);
-} # }}}
+sub import {
+       add_underlay("openid-selector");
+       hook(type => "checkconfig", id => "openid", call => \&checkconfig);
+       hook(type => "getsetup", id => "openid", call => \&getsetup);
+       hook(type => "auth", id => "openid", call => \&auth);
+       hook(type => "formbuilder_setup", id => "openid",
+               call => \&formbuilder_setup, last => 1);
+}

 
 

-sub checkconfig () { #{{{
-       # Currently part of the OpenID code is in CGI.pm, and is enabled by
-       # this setting.
-       # TODO: modularise it all out into this plugin..
-       $config{openid}=1;
-} #}}}
+sub checkconfig () {
+       if ($config{cgi}) {
+               # Intercept normal signin form, so the openid selector
+               # can be displayed.
+               # 
+               # When other auth hooks are registered, give the selector
+               # a reference to the normal signin form.
+               require IkiWiki::CGI;
+               my $real_cgi_signin;
+               if (keys %{$IkiWiki::hooks{auth}} > 1) {
+                       $real_cgi_signin=\&IkiWiki::cgi_signin;
+               }
+               inject(name => "IkiWiki::cgi_signin", call => sub ($$) {
+                       openid_selector($real_cgi_signin, @_);
+               });
+       }
+}

 
 

-sub auth ($$) { #{{{
-       my $q=shift;
-       my $session=shift;
+sub getsetup () {
+       return
+               plugin => {
+                       safe => 1,
+                       rebuild => 0,
+                       section => "auth",
+               },
+               openid_realm => {
+                       type => "string",
+                       description => "url pattern of openid realm (default is cgiurl)",
+                       safe => 0,
+                       rebuild => 0,
+               },
+               openid_cgiurl => {
+                       type => "string",
+                       description => "url to ikiwiki cgi to use for openid authentication (default is cgiurl)",
+                       safe => 0,
+                       rebuild => 0,
+               },
+}

 
 

-       if (defined $q->param('openid.mode')) {
-               my $csr=getobj($q, $session);
+sub openid_selector {
+       my $real_cgi_signin=shift;
+        my $q=shift;
+        my $session=shift;

 
 

-               if (my $setup_url = $csr->user_setup_url) {
-                       IkiWiki::redirect($q, $setup_url);
-               }
-               elsif ($csr->user_cancel) {
-                       IkiWiki::redirect($q, $config{url});
-               }
-               elsif (my $vident = $csr->verified_identity) {
-                       $session->param(name => $vident->url);
+       my $openid_url=$q->param('openid_identifier');
+       my $openid_error;
+
+       if (! load_openid_module()) {
+               if ($real_cgi_signin) {
+                       $real_cgi_signin->($q, $session);
+                       exit;

                }
                }

+               error(sprintf(gettext("failed to load openid module: "), @_));

        }
        }

-} #}}}
+       elsif (defined $q->param("action") && $q->param("action") eq "verify") {
+               validate($q, $session, $openid_url, sub {
+                       $openid_error=shift;
+               });
+       }
+
+       my $template=IkiWiki::template("openid-selector.tmpl");
+       $template->param(
+               cgiurl => $config{cgiurl},
+               (defined $openid_error ? (openid_error => $openid_error) : ()),
+               (defined $openid_url ? (openid_url => $openid_url) : ()),
+               ($real_cgi_signin ? (nonopenidform => $real_cgi_signin->($q, $session, 1)) : ()),
+       );
+
+       IkiWiki::printheader($session);
+       print IkiWiki::misctemplate("signin", $template->output);
+       exit;
+}
+
+sub formbuilder_setup (@) {
+       my %params=@_;

 
 

-sub validate ($$$$) { #{{{
+       my $form=$params{form};
+       my $session=$params{session};
+       my $cgi=$params{cgi};
+       
+       if ($form->title eq "preferences" &&
+              IkiWiki::openiduser($session->param("name"))) {
+               $form->field(name => "openid_identifier", disabled => 1,
+                       label => htmllink("", "", "ikiwiki/OpenID", noimageinline => 1),
+                       value => $session->param("name"), 
+                       size => length($session->param("name")), force => 1,
+                       fieldset => "login");
+               $form->field(name => "email", type => "hidden");
+       }
+}
+
+sub validate ($$$;$) {

        my $q=shift;
        my $session=shift;
        my $q=shift;
        my $session=shift;

-       my $form=shift;

        my $openid_url=shift;
        my $openid_url=shift;

+       my $errhandler=shift;

 
        my $csr=getobj($q, $session);
 
        my $claimed_identity = $csr->claimed_identity($openid_url);
        if (! $claimed_identity) {
 
        my $csr=getobj($q, $session);
 
        my $claimed_identity = $csr->claimed_identity($openid_url);
        if (! $claimed_identity) {

-               # Put the error in the form and fail validation.
-               $form->field(name => "openid_url", comment => $csr->err);
-               return 0;
+               if ($errhandler) {
+                       $errhandler->($csr->err);
+                       return 0;
+               }
+               else {
+                       error($csr->err);
+               }
+       }
+
+       # Ask for client to provide a name and email, if possible.
+       # Try sreg and ax
+       if ($claimed_identity->can("set_extension_args")) {
+               $claimed_identity->set_extension_args(
+                       'http://openid.net/extensions/sreg/1.1',
+                       {
+                               optional => 'email,fullname,nickname',
+                       },
+               );
+               $claimed_identity->set_extension_args(
+                       'http://openid.net/srv/ax/1.0',
+                       {
+                               mode => 'fetch_request',
+                               'required' => 'email,fullname,nickname,firstname',
+                               'type.email' => "http://schema.openid.net/contact/email",
+                               'type.fullname' => "http://axschema.org/namePerson",
+                               'type.nickname' => "http://axschema.org/namePerson/friendly",
+                               'type.firstname' => "http://axschema.org/namePerson/first",
+                       },
+               );

        }
        }

+
+       my $cgiurl=$config{openid_cgiurl};
+       $cgiurl=$config{cgiurl} if ! defined $cgiurl;
+
+       my $trust_root=$config{openid_realm};
+       $trust_root=$cgiurl if ! defined $trust_root;
+

        my $check_url = $claimed_identity->check_url(
        my $check_url = $claimed_identity->check_url(

-               return_to => IkiWiki::cgiurl(
-                       do => $form->field("do"),
-                       page => $form->field("page"),
-                       title => $form->field("title"),
-                       from => $form->field("from"),
-                       subpage => $form->field("subpage")
-               ),
-               trust_root => $config{cgiurl},
+               return_to => "$cgiurl?do=postsignin",
+               trust_root => $trust_root,

                delayed_return => 1,
        );
        # Redirect the user to the OpenID server, which will
                delayed_return => 1,
        );
        # Redirect the user to the OpenID server, which will

-       # eventually bounce them back to auth() above.
+       # eventually bounce them back to auth()

        IkiWiki::redirect($q, $check_url);
        exit 0;
        IkiWiki::redirect($q, $check_url);
        exit 0;

-} #}}}
+}
+
+sub auth ($$) {
+       my $q=shift;
+       my $session=shift;
+
+       if (defined $q->param('openid.mode')) {
+               my $csr=getobj($q, $session);
+
+               if (my $setup_url = $csr->user_setup_url) {
+                       IkiWiki::redirect($q, $setup_url);
+               }
+               elsif ($csr->user_cancel) {
+                       IkiWiki::redirect($q, $config{url});
+               }
+               elsif (my $vident = $csr->verified_identity) {
+                       $session->param(name => $vident->url);

 
 

-sub getobj ($$) { #{{{
+                       my @extensions;
+                       if ($vident->can("signed_extension_fields")) {
+                               @extensions=grep { defined } (
+                                       $vident->signed_extension_fields('http://openid.net/extensions/sreg/1.1'),
+                                       $vident->signed_extension_fields('http://openid.net/srv/ax/1.0'),
+                               );
+                       }
+                       my $nickname;
+                       foreach my $ext (@extensions) {
+                               foreach my $field (qw{value.email email}) {
+                                       if (exists $ext->{$field} &&
+                                           defined $ext->{$field} &&
+                                           length $ext->{$field}) {
+                                               $session->param(email => $ext->{$field});
+                                               if (! defined $nickname &&
+                                                   $ext->{$field}=~/(.+)@.+/) {
+                                                       $nickname = $1;
+                                               }
+                                               last;
+                                       }
+                               }
+                               foreach my $field (qw{value.nickname nickname value.fullname fullname value.firstname}) {
+                                       if (exists $ext->{$field} &&
+                                           defined $ext->{$field} &&
+                                           length $ext->{$field}) {
+                                               $nickname=$ext->{$field};
+                                               last;
+                                       }
+                               }
+                       }
+                       if (defined $nickname) {
+                               $session->param(nickname => $nickname);
+                       }
+               }
+               else {
+                       error("OpenID failure: ".$csr->err);
+               }
+       }
+       elsif (defined $q->param('openid_identifier')) {
+               # myopenid.com affiliate support
+               validate($q, $session, $q->param('openid_identifier'));
+       }
+}
+
+sub getobj ($$) {

        my $q=shift;
        my $session=shift;
 
        my $q=shift;
        my $session=shift;
 


@@ -87,15 +243,29 @@ sub getobj ($$) { #{{{
        # Store the secret in the session.
        my $secret=$session->param("openid_secret");
        if (! defined $secret) {
        # Store the secret in the session.
        my $secret=$session->param("openid_secret");
        if (! defined $secret) {

-               $secret=$session->param(openid_secret => time);
+               $secret=rand;
+               $session->param(openid_secret => $secret);

        }
        }

+       
+       my $cgiurl=$config{openid_cgiurl};
+       $cgiurl=$config{cgiurl} if ! defined $cgiurl;

 
        return Net::OpenID::Consumer->new(
                ua => $ua,
                args => $q,
 
        return Net::OpenID::Consumer->new(
                ua => $ua,
                args => $q,

-               consumer_secret => $secret,
-               required_root => $config{cgiurl},
+               consumer_secret => sub { return shift()+$secret },
+               required_root => $cgiurl,

        );
        );

-} #}}}
+}
+
+sub load_openid_module {
+       # Give up if module is unavailable to avoid needing to depend on it.
+       eval q{use Net::OpenID::Consumer};
+       if ($@) {
+               debug("unable to load Net::OpenID::Consumer, not enabling OpenID login ($@)");
+               return;
+       }
+       return 1;
+}

 
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