lemonldap-ng/_example/test/oauth2.pl

742 lines
25 KiB
Perl
Executable File

#!/usr/bin/perl -w
# Simple OpenID Connect client
use strict;
use JSON;
use LWP::UserAgent;
use MIME::Base64
qw/encode_base64url encode_base64 decode_base64url decode_base64/;
use URI::Escape;
use CGI;
use Data::Dumper;
$Data::Dumper::Useperl = 1;
use utf8;
use Digest::SHA
qw/hmac_sha256_base64 hmac_sha384_base64 hmac_sha512_base64 sha256 sha256_base64 sha384_base64 sha512_base64/;
#==============================================================================
# Configuration
#==============================================================================
my $host = $ENV{HTTP_HOST};
my ( $domain, $port ) = ( $host =~ /\w+\.([^:]+)(:\d+)?/ );
my $protocol = ( $ENV{HTTPS} =~ /^on$/i ) ? "https" : "http";
$port ||= "";
my $portal_url = "$protocol://auth.$domain$port";
my $client_id = "lemonldap";
my $client_secret = "secret";
my $authorization_uri = "$portal_url/oauth2/authorize";
my $token_uri = "$portal_url/oauth2/token";
my $userinfo_uri = "$portal_url/oauth2/userinfo";
my $registration_uri = "$portal_url/oauth2/register";
my $endsession_uri = "$portal_url/oauth2/logout";
my $checksession_uri = "$portal_url/oauth2/checksession";
#==============================================================================
# CSS
#==============================================================================
my $css = <<EOT;
html,body{
height:100%;
background:#ddd;
}
#content{
padding:20px;
}
EOT
#==============================================================================
# Main
#==============================================================================
my $ua = new LWP::UserAgent;
my $cgi = new CGI;
my $redirect_uri = $cgi->url . "?openidconnectcallback=1";
my $local_configuration_uri = $cgi->url . "?test=configuration";
my $local_registration_uri = $cgi->url . "?test=registration";
my $local_request_uri = $cgi->url . "?test=request";
my $local_checksession_uri = $cgi->url . "?test=checksession";
$Data::Dumper::Terse = 1;
$Data::Dumper::Sortkeys = 1;
# Request URI
if ( $cgi->param("test") eq "request" ) {
my $request_paylod_hash = {
response_type => "code",
scope => "openid profile",
client_id => $client_id,
redirect_uri => $redirect_uri,
display => "page",
iss => $client_id,
aud => [$portal_url]
};
my $request_payload = encode_base64( to_json($request_paylod_hash), "" );
my $request_header_hash = { typ => "JWT", alg => "HS256" };
my $request_header = encode_base64( to_json($request_header_hash), "" );
my $request_digest =
hmac_sha256_base64( $request_header . "." . $request_payload,
$client_secret );
$request_digest =~ s/\+/-/g;
$request_digest =~ s/\//_/g;
my $request =
$request_header . "." . $request_payload . "." . $request_digest;
print $cgi->header( -type => 'application/jwt;charset=utf-8' );
print $request;
exit;
}
# Check Session
if ( $cgi->param("test") eq "checksession" ) {
my $session_state = $cgi->param("session_state");
my $js;
$js .= 'var stat = "unchanged";' . "\n";
$js .=
'var mes = "'
. uri_escape($client_id)
. '" + " " + "'
. uri_escape($session_state) . '";' . "\n";
$js .= 'function check_session()' . "\n";
$js .= '{' . "\n";
$js .= 'var targetOrigin = "' . $portal_url . '";' . "\n";
$js .=
'var win = window.parent.document.getElementById("opchecksession").contentWindow;'
. "\n";
$js .= 'win.postMessage( mes, targetOrigin);' . "\n";
$js .= '}' . "\n";
$js .= 'function setTimer()' . "\n";
$js .= '{' . "\n";
$js .= 'check_session();' . "\n";
$js .= 'timerID = setInterval("check_session()",3*1000);' . "\n";
$js .= '}' . "\n";
$js .= 'window.addEventListener("message", receiveMessage, false);' . "\n";
$js .= 'function receiveMessage(e)' . "\n";
$js .= '{' . "\n";
$js .= 'var targetOrigin = "' . $portal_url . '";' . "\n";
$js .= 'if (e.origin !== targetOrigin ) {return;}' . "\n";
$js .= 'stat = e.data;' . "\n";
$js .= 'document.getElementById("sessionstatus").textContent=stat;' . "\n";
$js .= '}' . "\n";
$js .= 'setTimer();' . "\n";
print $cgi->header( -type => 'text/html' );
print $cgi->start_html( -title => 'Check Session', -script => $js );
print "<p>Session status: <span id=\"sessionstatus\"></span></p>\n";
print $cgi->end_html();
exit;
}
# Start HTTP response
print $cgi->header( -type => 'text/html;charset=utf-8' );
print "<!DOCTYPE html>\n";
print
"<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n";
print "<head>\n";
print "<title>OpenID Connect sample client</title>\n";
print
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n";
print
"<meta http-equiv=\"Content-Script-Type\" content=\"text/javascript\" />\n";
print "<meta http-equiv=\"cache-control\" content=\"no-cache\" />\n";
print
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n";
print
"<link href=\"$portal_url/static/bwr/bootstrap/dist/css/bootstrap.css\" type=\"text/css\" rel=\"stylesheet\">\n";
print
"<link href=\"$portal_url/static/bwr/bootstrap/dist/css/bootstrap-theme.css\" type=\"text/css\" rel=\"stylesheet\">\n";
print "<style>\n";
print "$css\n";
print "</style>\n";
print
"<script type=\"text/javascript\" src=\"$portal_url/static/bwr/jquery/dist/jquery.js\"></script>\n";
print
"<script type=\"text/javascript\" src=\"$portal_url/static/bwr/jquery-ui/jquery-ui.js\"></script>\n";
print
"<script src=\"$portal_url/static/bwr/bootstrap/dist/js/bootstrap.js\"></script>\n";
print "</head>\n";
print "<body>\n";
print "<div id=\"content\" class=\"container\">\n";
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h1 class=\"text-center\">OpenID Connect sample client</h1>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
# OIDC Callback
my $callback = $cgi->param("openidconnectcallback");
if ($callback) {
print "<h2 class=\"text-center\">Callback received</h2>";
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header\">\n";
print
"<h2 class=\"card-title text-center\">OpenID Connect callback received</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre><code>"
. $cgi->url( -path_info => 1, -query => 1 )
. "</code></pre>\n";
print "</div>\n";
print "</div>\n";
# Check Flow
my $code = $cgi->param("code");
my $implicitcallback = $cgi->param("implicitcallback");
my $error = $cgi->param("error");
my $error_description = $cgi->param("error_description");
if ($error) {
print "<div class=\"alert alert-danger\">";
print "<p>Error: $error</p>";
print "<p>Description: $error_description</p>" if $error_description;
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
unless ( $code or $implicitcallback ) {
print '
<script type="text/javascript">
// First, parse the query string
var params = {}, postBody = location.hash.substring(1),
regex = /([^&=]+)=([^&]*)/g, m;
var redirect_location = window.location.protocol + "//" + window.location.host + "/oauth2.pl?openidconnectcallback=1&implicitcallback=1";
while (m = regex.exec(postBody)) {
params[decodeURIComponent(m[1])] = decodeURIComponent(m[2]);
redirect_location = redirect_location + "&" + decodeURIComponent(m[1]) +"="+ decodeURIComponent(m[2]);
}
window.location = redirect_location;
</script>
';
}
# AuthN Response
my $state = $cgi->param("state");
# Check state
unless ( $state eq "ABCDEFGHIJKLMNOPQRSTUVWXXZ" ) {
print "<div class=\"alert alert-danger\">";
print "<p>OpenIDConnect callback state $state is invalid</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
my $access_token;
my $id_token;
if ($code) {
my $grant_type = "authorization_code";
my %form;
$form{"code"} = $code;
$form{"redirect_uri"} = $redirect_uri;
$form{"grant_type"} = $grant_type;
# Method client_secret_post
#$form{"client_id"} = $client_id;
#$form{"client_secret"} = $client_secret;
#my $response = $ua->post( $token_uri, \%form,
# "Content-Type" => 'application/x-www-form-urlencoded' );
# Method client_secret_basic
my $response = $ua->post(
$token_uri, \%form,
"Authorization" => "Basic "
. encode_base64("$client_id:$client_secret"),
"Content-Type" => 'application/x-www-form-urlencoded',
);
if ( $response->is_error ) {
print "<div class=\"alert alert-danger\">";
print "<p>Bad authorization response: "
. $response->message . "</p>";
print "<p>$response->content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
# Get access_token and id_token
my $content = $response->decoded_content;
my $json;
eval { $json = from_json( $content, { allow_nonref => 1 } ); };
if ($@) {
print "<div class=\"alert alert-danger\">";
print "<p>Wrong JSON content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
if ( $json->{error} ) {
print "<div class=\"alert alert-danger\">";
print "<p>Error in token response:" . $json->{error} . "</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
$access_token = $json->{access_token};
$id_token = $json->{id_token};
}
else {
$access_token = $cgi->param("access_token");
$id_token = $cgi->param("id_token");
}
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">Tokens</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>Access token: <code>$access_token</code></pre>";
print "<pre>ID token: <code>$id_token</code></pre>";
print "</div>\n";
print "</div>\n";
# Get ID token content
my ( $id_token_header, $id_token_payload, $id_token_signature ) =
split( /\./, $id_token );
# TODO check signature
my $id_token_payload_hash =
from_json( decode_base64($id_token_payload), { allow_nonref => 1 } );
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">ID Token content</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($id_token_payload_hash) . "</pre>";
print "</div>\n";
print "</div>\n";
# Request UserInfo
my $ui_response =
$ua->get( $userinfo_uri, "Authorization" => "Bearer $access_token" );
my $ui_content = $ui_response->decoded_content;
my $ui_json;
my $content_type = $ui_response->header('Content-Type');
if ( $content_type =~ /json/ ) {
eval { $ui_json = from_json( $ui_content, { allow_nonref => 1 } ); };
}
elsif ( $content_type =~ /jwt/ ) {
my ( $ui_header, $ui_payload, $ui_signature ) =
split( /\./, $ui_content );
eval {
$ui_json =
from_json( decode_base64($ui_payload), { allow_nonref => 1 } );
};
}
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">User Info</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($ui_json) . "</pre>";
print "</div>\n";
print "</div>\n";
# Session Management RP iFrame
print "<iframe src=\""
. $local_checksession_uri
. "&session_state="
. $cgi->param('session_state')
. "\" id=\"rpchecksession\" width=\"100%\"></iframe>\n";
print
"<iframe src=\"$checksession_uri\" id=\"opchecksession\" width=\"0\" height=\"0\"></iframe>\n";
my $logout_redirect_uri =
$endsession_uri
. "?post_logout_redirect_uri="
. $cgi->url
. "&state="
. $state;
print "<div class=\"text-center\">\n";
print
"<a class=\"btn btn-danger\" role=\"button\" href=\"$endsession_uri\">Logout</a>\n";
print
"<a class=\"btn btn-danger\" role=\"button\" href=\"$logout_redirect_uri\">Logout with redirect</a>\n";
print "</div>\n";
print "<hr />\n";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
}
# Configuration read
elsif ( $cgi->param("test") eq "configuration" ) {
my $openid_configuration_url =
$portal_url . "/.well-known/openid-configuration";
print
"<h3 class=\"text-center\">Get configuration from <a href=\"$openid_configuration_url\">$openid_configuration_url</a></h3>\n";
my $config_response = $ua->get($openid_configuration_url);
if ( $config_response->is_error ) {
print "<div class=\"alert alert-danger\">";
print "<p>Bad configuration response: "
. $config_response->message . "</p>";
print "<p>$config_response->content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
my $content = $config_response->decoded_content;
my $json;
eval { $json = from_json( $content, { allow_nonref => 1 } ); };
if ($@) {
print "<div class=\"alert alert-danger\">";
print "<p>Wrong JSON content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
if ( $json->{error} ) {
print "<div class=\"alert alert-danger\">";
print "<p>Error in configuration response:" . $json->{error} . "</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">Configuration content</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($json) . "</pre>";
print "</div>\n";
print "</div>\n";
if ( $json->{jwks_uri} ) {
my $jwks_response = $ua->get( $json->{jwks_uri} );
if ( $jwks_response->is_error ) {
print "<div class=\"alert alert-danger\">";
print "<p>Bad JWKS response: " . $jwks_response->message . "</p>";
print "<p>$jwks_response->content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
my $jwks_content = $jwks_response->decoded_content;
my $jwks_json;
eval { $jwks_json = from_json( $jwks_content, { allow_nonref => 1 } ); };
if ($@) {
print "<div class=\"alert alert-danger\">";
print "<p>Wrong JSON content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
if ( $json->{error} ) {
print "<div class=\"alert alert-danger\">";
print "<p>Error in jwks response:" . $json->{error} . "</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">JWKS content</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($jwks_json) . "</pre>";
print "</div>\n";
print "</div>\n";
}
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
}
# Registration
elsif ( $cgi->param("test") eq "registration" ) {
print
"<h3 class=\"text-center\">Register fake client on <a href=\"$registration_uri\">$registration_uri</a></h3>\n";
my $fake_metadata = {
"application_type" => "web",
"redirect_uris" => [
"https://client.example.org/callback",
"https://client.example.org/callback2"
],
"client_name" => "My Example",
"client_name#ja-Jpan-JP" => "クライアント名",
"logo_uri" => "https://client.example.org/logo.png",
"subject_type" => "pairwise",
"sector_identifier_uri" =>
"https://other.example.net/file_of_redirect_uris.json",
"token_endpoint_auth_method" => "client_secret_basic",
"jwks_uri" => "https://client.example.org/my_public_keys.jwks",
"userinfo_encrypted_response_alg" => "RSA1_5",
"userinfo_encrypted_response_enc" => "A128CBC-HS256",
"contacts" => [ 've7jtb@example.org', 'mary@example.org' ],
"request_uris" => [
'https://client.example.org/rf.txt#qpXaRLh_n93TTR9F252ValdatUQvQiJi5BDub2BeznA'
],
};
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">Client metadata sent</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($fake_metadata) . "</pre>";
print "</div>\n";
print "</div>\n";
# POST client metadata
my $fake_metadata_json = to_json($fake_metadata);
my $register_response = $ua->post(
$registration_uri,
"Content-Type" => 'application/json',
"Content" => $fake_metadata_json
);
my $register_content = $register_response->decoded_content;
my $register_json;
eval {
$register_json = from_json( $register_content, { allow_nonref => 1 } );
};
if ($@) {
print "<div class=\"alert alert-danger\">";
print "<p>Wrong JSON content</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
if ( $register_json->{error} ) {
print "<div class=\"alert alert-danger\">";
print "<p>Error in register response:"
. $register_json->{error} . "</p>";
print "</div>";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
print "</div>";
print "</div>";
print $cgi->end_html();
exit 0;
}
print "<div class=\"card border-info\">\n";
print "<div class=\"card-header text-white bg-info\">\n";
print "<h2 class=\"card-title text-center\">Register content</h2>\n";
print "</div>\n";
print "<div class=\"card-body\">\n";
print "<pre>" . Dumper($register_json) . "</pre>";
print "</div>\n";
print "</div>\n";
print
"<div class=\"text-center\"><a class=\"btn btn-info\" role=\"button\" href=\""
. $cgi->url
. "\">Home</a></div>\n";
}
# First access
else {
# AuthN Request
my $response_type = uri_escape("code");
my $scope = uri_escape("openid profile address email phone");
my $state = uri_escape("ABCDEFGHIJKLMNOPQRSTUVWXXZ");
my $nonce = uri_escape("1234567890");
my $display = uri_escape(""); # popup
my $prompt = uri_escape(""); # login / consent
my $ui_locales = uri_escape(""); # fr-FR / en
my $login_hint = uri_escape("");
my $max_age = 3600;
my $id_token_hint = "";
my $request_paylod_hash = {
response_type => "code",
scope => "openid profile",
client_id => $client_id,
redirect_uri => $redirect_uri,
display => "page",
iss => $client_id,
aud => [$portal_url]
};
my $request_payload = encode_base64( to_json($request_paylod_hash), "" );
my $request_header_hash = { typ => "JWT", alg => "HS256" };
my $request_header = encode_base64( to_json($request_header_hash), "" );
my $request_digest =
hmac_sha256_base64( $request_header . "." . $request_payload,
$client_secret );
$request_digest =~ s/\+/-/g;
$request_digest =~ s/\//_/g;
my $request = uri_escape(
$request_header . "." . $request_payload . "." . $request_digest );
my $request_uri = uri_escape($local_request_uri);
$client_id = uri_escape($client_id);
$redirect_uri = uri_escape($redirect_uri);
my $redirect_url = $authorization_uri
. "?response_type=$response_type&client_id=$client_id&scope=$scope&redirect_uri=$redirect_uri&state=$state&nonce=$nonce&display=$display&prompt=$prompt&ui_locales=$ui_locales&login_hint=$login_hint&max_age=$max_age&id_token_hint=$id_token_hint";
my $implicit_response_type = uri_escape("id_token token");
my $implicit_redirect_url = $authorization_uri
. "?response_type=$implicit_response_type&client_id=$client_id&scope=$scope&redirect_uri=$redirect_uri&state=$state&nonce=$nonce&display=$display&prompt=$prompt&ui_locales=$ui_locales&login_hint=$login_hint&max_age=$max_age&id_token_hint=$id_token_hint";
my $hybrid_response_type = uri_escape("code id_token token");
my $hybrid_redirect_url = $authorization_uri
. "?response_type=$hybrid_response_type&client_id=$client_id&scope=$scope&redirect_uri=$redirect_uri&state=$state&nonce=$nonce&display=$display&prompt=$prompt&ui_locales=$ui_locales&login_hint=$login_hint&max_age=$max_age&id_token_hint=$id_token_hint";
my $request_redirect_url = $authorization_uri
. "?response_type=code&client_id=$client_id&request=$request&state=$state&scope=openid";
my $request_uri_redirect_url = $authorization_uri
. "?response_type=code&client_id=$client_id&request_uri=$request_uri&state=$state&scope=openid";
print "<h2 class=\"text-center\">Authentication</h2>\n";
print "<div class=\"text-center\">\n";
print
"<a href=\"$redirect_url\" class=\"btn btn-info\" role=\"button\">Authorization Code Flow</a>\n";
print
"<a href=\"$implicit_redirect_url\" class=\"btn btn-info\" role=\"button\">Implicit Flow</a>\n";
print
"<a href=\"$hybrid_redirect_url\" class=\"btn btn-info\" role=\"button\">Hybrid Flow</a>\n";
print
"<a href=\"$request_redirect_url\" class=\"btn btn-info\" role=\"button\">Authorization Code Flow with request</a>\n";
print
"<a href=\"$request_uri_redirect_url\" class=\"btn btn-info\" role=\"button\">Authorization Code Flow with request_uri</a>\n";
print "</div>\n";
print "<h2 class=\"text-center\">Configuration</h2>\n";
print "<div class=\"text-center\">\n";
print
"<a href=\"$local_configuration_uri\" class=\"btn btn-success\" role=\"button\">Configuration discovery</a>\n";
print "</div>\n";
print "<h2 class=\"text-center\">Registration</h2>\n";
print "<div class=\"text-center\">\n";
print
"<a href=\"$local_registration_uri\" class=\"btn btn-success\" role=\"button\">Register a fake client</a>\n";
print "</div>\n";
}
print "</div>\n";
print "</div>\n";
print "</div>\n";
print $cgi->end_html();
exit 0;