493 lines
16 KiB
Perl
493 lines
16 KiB
Perl
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#!/usr/bin/perl
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#
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# DW::Controller::OpenID
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#
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# This controller is for OpenID related pages.
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#
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# Authors:
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# Mark Smith <mark@dreamwidth.org>
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# Jen Griffin <kareila@livejournal.com>
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#
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# Copyright (c) 2011-2020 by Dreamwidth Studios, LLC.
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#
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# This program is free software; you may redistribute it and/or modify it under
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# the same terms as Perl itself. For a copy of the license, please reference
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# 'perldoc perlartistic' or 'perldoc perlgpl'.
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#
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package DW::Controller::OpenID;
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use strict;
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use warnings;
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use DW::Routing;
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use DW::Controller;
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use DW::Template;
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use LJ::OpenID;
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DW::Routing->register_string( '/openid/index', \&openid_index_handler, app => 1 );
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DW::Routing->register_string( '/openid/options', \&openid_options_handler, app => 1 );
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# for responding to OpenID authentication requests
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DW::Routing->register_string(
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'/openid/server', \&openid_server_handler,
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app => 1,
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no_cache => 1
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);
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# for claiming imported comments
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DW::Routing->register_string( '/openid/claim', \&openid_claim_handler, app => 1 );
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DW::Routing->register_string( '/openid/claimed', \&openid_claimed_handler, app => 1 );
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DW::Routing->register_string( '/openid/claim_confirm', \&openid_claim_confirm_handler, app => 1 );
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# for handling site logins
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DW::Routing->register_string(
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'/openid/login', \&openid_login_handler,
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app => 1,
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no_cache => 1
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);
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# form for approving an OpenID login elsewhere using credentials from our site
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DW::Routing->register_string( '/openid/approve', \&openid_approve_handler, app => 1 );
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sub openid_index_handler {
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my ( $ok, $rv ) = controller( anonymous => 1 );
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return $rv unless $ok;
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my $r = $rv->{r};
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my $vars =
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{ continue_to => $r->get_args->{returnto} || $r->header_in("Referer") };
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return DW::Template->render_template( 'openid/index.tt', $vars );
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}
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sub openid_options_handler {
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my ( $ok, $rv ) = controller();
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return $rv unless $ok;
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my $r = $rv->{r};
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my $u = $rv->{remote};
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my $dbh = LJ::get_db_writer();
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my $trusted = {};
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my $load_trusted = sub {
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$trusted = $dbh->selectall_hashref(
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q{
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SELECT ye.endpoint_id as 'endid', ye.url
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FROM openid_endpoint ye, openid_trust yt
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WHERE yt.endpoint_id=ye.endpoint_id
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AND yt.userid=? }, 'endid', undef, $u->userid
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);
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};
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$load_trusted->();
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# check for deletions
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if ( $r->did_post ) {
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foreach my $endid ( keys %$trusted ) {
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next unless $r->post_args->{"delete:$endid"};
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$dbh->do( "DELETE FROM openid_trust WHERE userid=? AND endpoint_id=?",
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undef, $u->userid, $endid );
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}
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$load_trusted->();
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}
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# construct row data
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my @rows;
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my $url_sort = sub { $trusted->{$a}->{url} cmp $trusted->{$b}->{url} };
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foreach my $endid ( sort $url_sort keys %$trusted ) {
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push @rows, [ "delete:$endid", $trusted->{$endid}->{url} ];
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}
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$rv->{rows} = \@rows;
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return DW::Template->render_template( 'openid/options.tt', $rv );
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}
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sub openid_server_handler {
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my $r = DW::Request->get;
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my $get = $r->get_args;
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my $trust_root = $get->{'openid.trust_root'} // '';
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my $return_to = $get->{'openid.return_to'} // '';
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## Non-OpenID-compliant section: rewrite LiveJournal's trust_root to
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## https so that it will match their return_to URL and pass validation.
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$get->{'openid.trust_root'} = 'https://www.livejournal.com/'
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if ( $trust_root eq 'http://www.livejournal.com/'
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&& $return_to =~ m|^https://www\.livejournal\.com/| );
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my $nos = LJ::OpenID::server( $get, $r->post_args );
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my ( $type, $data ) = $nos->handle_page( redirect_for_setup => 1 );
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return $r->redirect($data) if $type eq "redirect";
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$r->content_type($type) if $type;
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$r->print($data);
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return $r->OK;
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}
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sub openid_claim_handler {
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my $opts = shift;
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my $r = DW::Request->get;
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my ( $ok, $rv ) = controller();
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return $rv unless $ok;
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my $err = sub {
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my @errors = map { $_ =~ /^\./ ? LJ::Lang::ml("/openid/claim.tt$_") : $_ } @_;
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return DW::Template->render_template( 'openid/claim.tt', { error_list => \@errors } );
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};
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my $u = $rv->{remote};
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my @claims = $u->get_openid_claims;
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return DW::Template->render_template( 'openid/claim.tt', { claims => \@claims } )
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unless $r->did_post;
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# at this point, the user did a POST, so we want to try to perform an OpenID
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# login on the given URL.
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my $args = $r->post_args;
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my $url = LJ::trim( $args->{openid_url} );
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return $err->('.error.required') unless $url;
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return $err->('.error.invalidchars') if $url =~ /[\<\>\s]/;
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my $csr = LJ::OpenID::consumer();
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my $tried_local_ref = LJ::OpenID::blocked_hosts($csr);
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my $claimed_id = eval { $csr->claimed_identity($url); };
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return $err->($@) if $@;
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unless ($claimed_id) {
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return $err->(
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LJ::Lang::ml(
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'/openid/claim.tt.error.cantuseownsite',
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{ sitename => $LJ::SITENAMESHORT }
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)
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) if $$tried_local_ref;
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return $err->( $csr->err );
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}
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my $check_url = $claimed_id->check_url(
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return_to => "$LJ::SITEROOT/openid/claimed",
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trust_root => "$LJ::SITEROOT/",
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delayed_return => 1,
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);
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return $r->redirect($check_url);
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}
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sub openid_claimed_handler {
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my $opts = shift;
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my $r = DW::Request->get;
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my ( $ok, $rv ) = controller();
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return $rv unless $ok;
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my $err = sub {
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my @errors = map { $_ =~ /^\./ ? LJ::Lang::ml("/openid/claim.tt$_") : $_ } @_;
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return DW::Template->render_template( 'openid/claim.tt', { error_list => \@errors } );
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};
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# attempt to verify the user
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my $u = $rv->{remote};
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my $args = $r->get_args;
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return $r->redirect("$LJ::SITEROOT/openid/claim")
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unless exists $args->{'openid.mode'};
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my $csr = LJ::OpenID::consumer( $args->as_hashref );
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return $r->redirect("$LJ::SITEROOT/openid/claim")
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if $csr->user_cancel;
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my $setup = $csr->user_setup_url;
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return $r->redirect($setup) if $setup;
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my $return_to = "$LJ::SITEROOT/openid/claimed";
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return $r->redirect("$LJ::SITEROOT/openid/claim")
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if $args->{'openid.return_to'} && $args->{'openid.return_to'} !~ /^\Q$return_to\E/;
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my $vident = eval { $csr->verified_identity; };
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return $err->($@) if $@;
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return $err->( $csr->err ) unless $vident;
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my $url = $vident->url;
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return $err->('.error.invalidchars') if $url =~ /[\<\>\s]/;
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my $ou = LJ::User::load_identity_user( 'O', $url, $vident );
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return $err->('.error.failed_vivification') unless $ou;
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return $err->(
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LJ::Lang::ml(
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'/openid/claim.tt.error.account_deleted',
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{
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sitename => $LJ::SITENAMESHORT,
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aopts1 => '/openid',
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aopts2 => '/accountstatus',
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}
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)
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) if $ou->is_deleted;
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# generate the authaction
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my $aa = LJ::register_authaction( $u->id, 'claimopenid', $ou->id )
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or return $err->('Internal error generating authaction.');
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my $confirm_url = "$LJ::SITEROOT/openid/claim_confirm?auth=$aa->{aaid}.$aa->{authcode}";
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# great, let's send them an email to confirm
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my $email = LJ::Lang::ml(
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'/openid/claim.tt.email',
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{
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sitename => $LJ::SITENAME,
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sitenameshort => $LJ::SITENAMESHORT,
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remote => $u->display_name,
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openid => $ou->display_name,
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confirm_url => $confirm_url,
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}
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);
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LJ::send_mail(
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{
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to => $u->email_raw,
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from => $LJ::ADMIN_EMAIL,
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subject =>
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LJ::Lang::ml( '/openid/claim.tt.email.subject', { sitename => $LJ::SITENAME } ),
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body => $email,
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}
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);
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# now give them the conf page
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return DW::Template->render_template('openid/claim_sent.tt');
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}
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sub openid_claim_confirm_handler {
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my $opts = shift;
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my $r = DW::Request->get;
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my ( $ok, $rv ) = controller();
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return $rv unless $ok;
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my $err = sub {
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my @errors = map { $_ =~ /^\./ ? LJ::Lang::ml("/openid/claim_confirm.tt$_") : $_ } @_;
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return DW::Template->render_template( 'openid/claim_confirm.tt',
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{ error_list => \@errors } );
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};
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my $u = $rv->{remote};
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my @claims = $u->get_openid_claims;
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my $args = $r->get_args;
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# verify that the link they followed is good
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my ( $aaid, $authcode );
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( $aaid, $authcode ) = ( $1, $2 )
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if $args->{auth} =~ /^(\d+)\.(\w+)$/;
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my $aa = LJ::is_valid_authaction( $aaid, $authcode );
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return $err->('.error.invalid_auth')
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unless $aa && ref $aa eq 'HASH' && $aa->{used} eq 'N' && $aa->{action} eq 'claimopenid';
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return $err->('.error.wrong_account')
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if $aa->{userid} != $u->id;
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# now make sure nobody has since claimed that account
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my $ou = LJ::load_userid( $aa->{arg1} + 0 );
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return $err->('.error.invalid_account')
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unless $ou && $ou->is_identity;
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if ( my $cbu = $ou->claimed_by ) {
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return $err->('.error.already_claimed_self')
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if $cbu->equals($u);
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return $err->('.error.already_claimed_other');
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}
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return $err->(
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LJ::Lang::ml(
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'/openid/claim.tt.error.account_deleted',
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{
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sitename => $LJ::SITENAMESHORT,
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aopts1 => '/openid',
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aopts2 => '/accountstatus',
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}
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)
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) if $ou->is_deleted;
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# now start the claim process
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$u->claim_identity($ou);
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return DW::Template->render_template('openid/claim_confirm.tt');
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}
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sub openid_login_handler {
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my ( $ok, $rv ) = controller( anonymous => 1 );
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return $rv unless $ok;
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my $remote = $rv->{remote};
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return error_ml( '/openid/login.tt.error.logout.content', { user => $remote->ljuser_display } )
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if $remote;
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my $r = $rv->{r};
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# yes, this looks at post_args without checking for did_post.
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# that's how the old page operated so I'm preserving that behavior.
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my $continue_to = $r->post_args->{'continue_to'};
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my $query_args = $continue_to ? "?continue_to=" . LJ::eurl($continue_to) : "";
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my $return_to = "$LJ::SITEROOT/openid/login" . $query_args;
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if ( $r->did_post ) {
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my $csr = LJ::OpenID::consumer();
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my $url = $r->post_args->{'openid_url'};
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return error_ml('/openid/login.tt.error.invalidcharacters') if $url =~ /[\<\>\s]/;
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my $tried_local_ref = LJ::OpenID::blocked_hosts($csr);
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my $claimed_id = eval { $csr->claimed_identity($url); };
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return error_ml( '/openid/login.tt.error.claimed_identity', { err => $@ } ) if $@;
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unless ($claimed_id) {
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return error_ml( '/openid/login.tt.error.cantuseownsite',
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{ sitename => $LJ::SITENAMESHORT } )
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if $$tried_local_ref;
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return error_ml( '/openid/login.tt.error.loading_identity', { err => $csr->err } );
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}
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my $check_url = $claimed_id->check_url(
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return_to => $return_to,
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trust_root => "$LJ::SITEROOT/",
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delayed_return => 1,
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);
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return $r->redirect($check_url);
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}
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||
|
|
# get_args method returns a Hash::MultiValue,
|
||
|
|
# but LJ::OpenID::consumer needs a plain vanilla hash
|
||
|
|
my $get_args = $r->get_args->as_hashref;
|
||
|
|
if ( $get_args->{'openid.mode'} ) {
|
||
|
|
|
||
|
|
my $csr = LJ::OpenID::consumer($get_args);
|
||
|
|
return $r->redirect("$LJ::SITEROOT/openid/") if $csr->user_cancel;
|
||
|
|
|
||
|
|
my $setup = $csr->user_setup_url;
|
||
|
|
return $r->redirect($setup) if $setup;
|
||
|
|
|
||
|
|
if ( $get_args->{'openid.return_to'}
|
||
|
|
&& $get_args->{'openid.return_to'} !~ /^\Q$return_to\E/ )
|
||
|
|
{
|
||
|
|
return error_ml( '/openid/login.tt.error.invalidparameter', { item => "return_to" } );
|
||
|
|
}
|
||
|
|
|
||
|
|
my $errmsg;
|
||
|
|
my $u = LJ::User::load_from_consumer( $csr, \$errmsg );
|
||
|
|
return error_ml( '/openid/login.tt.error.consumer_object', { err => $errmsg } )
|
||
|
|
unless $u;
|
||
|
|
|
||
|
|
my $sess_opts = { exptype => 'short', ipfixed => 0 };
|
||
|
|
my $etime = 0;
|
||
|
|
|
||
|
|
# yes, we're looking at post args in a get request again.
|
||
|
|
my $expire_arg = $r->post_args->{expire} // '';
|
||
|
|
if ( $expire_arg eq "never" ) {
|
||
|
|
$etime = time() + 60 * 60 * 24 * 60;
|
||
|
|
$sess_opts->{'exptype'} = "long";
|
||
|
|
}
|
||
|
|
|
||
|
|
$u->make_login_session( $sess_opts->{'exptype'}, $sess_opts->{'ipfixed'} );
|
||
|
|
LJ::set_remote($u);
|
||
|
|
|
||
|
|
my $redirect = "$LJ::SITEROOT/login";
|
||
|
|
|
||
|
|
# handle the continue_to url, if it's a valid URL to redirect to.
|
||
|
|
$continue_to = $get_args->{'continue_to'};
|
||
|
|
if ($continue_to) {
|
||
|
|
|
||
|
|
# some pages return a relative url
|
||
|
|
if ( $continue_to =~ /^\// ) {
|
||
|
|
$continue_to = $LJ::SITEROOT . $continue_to;
|
||
|
|
}
|
||
|
|
if ( DW::Controller::validate_redirect_url($continue_to) ) {
|
||
|
|
|
||
|
|
# if the account is validated, then go ahead and redirect
|
||
|
|
if ( $u->is_validated ) {
|
||
|
|
$redirect = $continue_to;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$redirect .= "?continue_to=" . LJ::eurl($continue_to);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $r->redirect($redirect);
|
||
|
|
}
|
||
|
|
|
||
|
|
# the old code displayed an empty page if we got this far. let's do better.
|
||
|
|
return $r->redirect("$LJ::SITEROOT/login");
|
||
|
|
}
|
||
|
|
|
||
|
|
sub openid_approve_handler {
|
||
|
|
my ( $ok, $rv ) = controller( form_auth => 1 );
|
||
|
|
return $rv unless $ok;
|
||
|
|
|
||
|
|
my $u = $rv->{remote};
|
||
|
|
return error_ml('/openid/approve.tt.error.login_needed') unless $u;
|
||
|
|
|
||
|
|
my $r = $rv->{r};
|
||
|
|
my $args = $r->get_args;
|
||
|
|
|
||
|
|
# redirect to the main OpenID page if we tried to access this directly
|
||
|
|
return $r->redirect("$LJ::SITEROOT/openid/") unless $args->{'identity'};
|
||
|
|
|
||
|
|
my $identity = LJ::OpenID::is_identity( $u, $args->{'identity'}, $args );
|
||
|
|
|
||
|
|
unless ($identity) {
|
||
|
|
return error_ml( '/openid/approve.tt.error.cannot_provide_identity',
|
||
|
|
{ url => LJ::ehtml( $args->{'identity'} ), user => $u->ljuser_display } );
|
||
|
|
}
|
||
|
|
|
||
|
|
my $site = $args->{'trust_root'};
|
||
|
|
$site =~ s/\?.*//;
|
||
|
|
return error_ml('/openid/approve.tt.error.invalid_site_address')
|
||
|
|
unless $site =~ m!^https?://!;
|
||
|
|
|
||
|
|
# TODO from original bml file: check URL and see if it contains images or
|
||
|
|
# external scripts/css/images, where an attacker could sniff the validation
|
||
|
|
# tokens in the Referer header?
|
||
|
|
|
||
|
|
my $nos = LJ::OpenID::server();
|
||
|
|
my $sig_return = $nos->signed_return_url(
|
||
|
|
identity => $args->{'identity'},
|
||
|
|
return_to => $args->{'return_to'},
|
||
|
|
trust_root => $args->{'trust_root'},
|
||
|
|
assoc_handle => $args->{'assoc_handle'},
|
||
|
|
);
|
||
|
|
|
||
|
|
##
|
||
|
|
## If user is logged in, and user trusts the site, then
|
||
|
|
## we can tell the user's identity to the site.
|
||
|
|
##
|
||
|
|
if ( LJ::OpenID::is_trusted( $u, $site ) ) {
|
||
|
|
return $r->redirect($sig_return) if $sig_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $r->did_post ) {
|
||
|
|
|
||
|
|
# form_auth is checked in the controller function
|
||
|
|
my $post = $r->post_args;
|
||
|
|
|
||
|
|
if ( $post->{'no'} ) {
|
||
|
|
my $cancel_url = $nos->cancel_return_url( return_to => $args->{'return_to'}, );
|
||
|
|
return $r->redirect($cancel_url);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $post->{'yes:always'} ) {
|
||
|
|
LJ::OpenID::add_trust( $u, $site )
|
||
|
|
or return error_ml('/openid/approve.tt.error.failed_to_save');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $r->redirect($sig_return) if $sig_return;
|
||
|
|
return error_ml('/openid/approve.tt.error.failed_sign_url');
|
||
|
|
}
|
||
|
|
|
||
|
|
my $disp_site = LJ::ehtml($site);
|
||
|
|
$disp_site =~ s!\*\.!<span style='color: red'><i><anything></i></span>.!;
|
||
|
|
|
||
|
|
my $vars = {
|
||
|
|
disp_idurl => LJ::ehtml( $args->{'identity'} ),
|
||
|
|
disp_site => $disp_site,
|
||
|
|
};
|
||
|
|
|
||
|
|
return DW::Template->render_template( 'openid/approve.tt', $vars );
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|