X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/5c2f6cb8935f828274511ba5ca0d92b586632740..4292802ee5f93f7ec7644c5d0a30f7ffeb95e566:/IkiWiki/Plugin/openid.pm

diff --git a/IkiWiki/Plugin/openid.pm b/IkiWiki/Plugin/openid.pm
index 5424c57e2..f4ba8db18 100644
--- a/IkiWiki/Plugin/openid.pm
+++ b/IkiWiki/Plugin/openid.pm
@@ -7,18 +7,30 @@ use strict;
 use IkiWiki 3.00;
 
 sub import {
-	hook(type => "getopt", id => "openid", call => \&getopt);
+	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 getopt () {
-	eval q{use Getopt::Long};
-	error($@) if $@;
-	Getopt::Long::Configure('pass_through');
-	GetOptions("openidsignup=s" => \$config{openidsignup});
+sub checkconfig () {
+	if ($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 getsetup () {
@@ -26,16 +38,56 @@ sub getsetup () {
 		plugin => {
 			safe => 1,
 			rebuild => 0,
+			section => "auth",
 		},
-		openidsignup => {
+		openid_realm => {
 			type => "string",
-			example => "http://myopenid.com/",
-			description => "an url where users can signup for an OpenID",
-			safe => 1,
+			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,
 		},
 }
 
+sub openid_selector {
+	my $real_cgi_signin=shift;
+        my $q=shift;
+        my $session=shift;
+
+	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=@_;
 
@@ -43,52 +95,14 @@ sub formbuilder_setup (@) {
 	my $session=$params{session};
 	my $cgi=$params{cgi};
 	
-	if ($form->title eq "signin") {
-		# Give up if module is unavailable to avoid
-		# needing to depend on it.
-		eval q{use Net::OpenID::Consumer};
-		if ($@) {
-			debug("unable to load Net::OpenID::Consumer, not enabling OpenID login ($@)");
-			return;
-		}
-
-		# This avoids it displaying a redundant label for the
-		# OpenID fieldset.
-		$form->fieldsets("OpenID");
-
- 		$form->field(
-			name => "openid_url",
-			label => gettext("Log in with")." ".htmllink("", "", "ikiwiki/OpenID", noimageinline => 1),
-			fieldset => "OpenID",
-			size => 30,
-			comment => ($config{openidsignup} ? " | <a href=\"$config{openidsignup}\">".gettext("Get an OpenID")."</a>" : "")
-		);
-
-		# Handle submission of an OpenID as validation.
-		if ($form->submitted && $form->submitted eq "Login" &&
-		    defined $form->field("openid_url") && 
-		    length $form->field("openid_url")) {
-			$form->field(
-				name => "openid_url",
-				validate => sub {
-					validate($cgi, $session, shift, $form);
-				},
-			);
-			# Skip all other required fields in this case.
-			foreach my $field ($form->field) {
-				next if $field eq "openid_url";
-				$form->field(name => $field, required => 0,
-					validate => '/.*/');
-			}
-		}
-	}
-	elsif ($form->title eq "preferences") {
-		if (! defined $form->field(name => "name")) {
-			$form->field(name => "OpenID", disabled => 1,
-				value => $session->param("name"), 
-				size => 50, force => 1,
-				fieldset => "login");
-		}
+	if ($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");
 	}
 }
 
@@ -96,15 +110,14 @@ sub validate ($$$;$) {
 	my $q=shift;
 	my $session=shift;
 	my $openid_url=shift;
-	my $form=shift;
+	my $errhandler=shift;
 
 	my $csr=getobj($q, $session);
 
 	my $claimed_identity = $csr->claimed_identity($openid_url);
 	if (! $claimed_identity) {
-		if ($form) {
-			# Put the error in the form and fail validation.
-			$form->field(name => "openid_url", comment => $csr->err);
+		if ($errhandler) {
+			$errhandler->($csr->err);
 			return 0;
 		}
 		else {
@@ -112,9 +125,37 @@ sub validate ($$$;$) {
 		}
 	}
 
+	# 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(
-		return_to => IkiWiki::cgiurl(do => "postsignin"),
-		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
@@ -138,6 +179,32 @@ sub auth ($$) {
 		}
 		elsif (my $vident = $csr->verified_identity) {
 			$session->param(name => $vident->url);
+
+			my @extensions;
+			if ($vident->can("signed_extension_fields")) {
+				@extensions=grep { defined } (
+					$vident->signed_extension_fields('http://openid.net/extensions/sreg/1.1'),
+					$vident->signed_extension_fields('http://openid.net/srv/ax/1.0'),
+				);
+			}
+			foreach my $ext (@extensions) {
+				foreach my $field (qw{value.email email}) {
+					if (exists $ext->{$field} &&
+					    defined $ext->{$field} &&
+					    length $ext->{$field}) {
+						$session->param(email => $ext->{$field});
+						last;
+					}
+				}
+				foreach my $field (qw{value.nickname nickname value.fullname fullname value.firstname}) {
+					if (exists $ext->{$field} &&
+					    defined $ext->{$field} &&
+					    length $ext->{$field}) {
+						$session->param(username => $ext->{$field});
+						last;
+					}
+				}
+			}
 		}
 		else {
 			error("OpenID failure: ".$csr->err);
@@ -171,42 +238,26 @@ sub getobj ($$) {
 		$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 => $q,
 		consumer_secret => sub { return shift()+$secret },
-		required_root => $config{cgiurl},
+		required_root => $cgiurl,
 	);
 }
 
-package IkiWiki;
-
-# This is not used by this plugin, but this seems the best place to put it.
-# Used elsewhere to pretty-display the name of an openid user.
-sub openiduser ($) {
-	my $user=shift;
-
-	if ($user =~ m!^https?://! &&
-	    eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
-		my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
-		my $display=$oid->display;
-		# Convert "user.somehost.com" to "user [somehost.com]"
-		# (also "user.somehost.co.uk")
-		if ($display !~ /\[/) {
-			$display=~s/^([-a-zA-Z0-9]+?)\.([-.a-zA-Z0-9]+\.[a-z]+)$/$1 [$2]/;
-		}
-		# Convert "http://somehost.com/user" to "user [somehost.com]".
-		# (also "https://somehost.com/user/")
-		if ($display !~ /\[/) {
-			$display=~s/^https?:\/\/(.+)\/([^\/]+)\/?$/$2 [$1]/;
-		}
-		$display=~s!^https?://!!; # make sure this is removed
-		eval q{use CGI 'escapeHTML'};
-		error($@) if $@;
-		return escapeHTML($display);
+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;
+	return 1;
 }
 
 1