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class-spid-core.php
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class-spid-core.php
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<?php
/**
* Summary goes here.
*
* @package SPID_WordPress
* @author Paolo Greppi simevo s.r.l. <paolo.greppi@libpf.com>
* @license GNU Affero General Public License v3.0
* @link https://github.com/simevo/spid-wordpress
* @since 0.1.0
*/
// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
die;
}
class SPID_Core {
private static $instance;
private $auth = null;
public $options;
public $idp_files_in_metadata_folder;
public static function getInstance() {
if ( ! isset( self::$instance ) ) {
self::$instance = new SPID_Core();
add_action( 'init', array( self::$instance, 'actionInit' ) );
}
return self::$instance;
}
public function actionInit() {
$base = get_home_url();
// Default path to key and crt file and idp_metadata folder
$home = ABSPATH . 'spid-conf';
// The following are mandatory attributes for any WordPress install of the plugin.
update_option( 'sp_spidCode', 'on' );
update_option( 'sp_email', 'on' );
$this->options = $this->getOptions();
$sp_attributeconsumingservice = $this->findActiveAttributes( $this->options );
$settings = [
'sp_entityid' => $base,
'sp_key_file' => "$home/wp.key",
'sp_cert_file' => "$home/wp.crt",
'sp_assertionconsumerservice' => [
$base . '/wp-login.php?sso=spid',
],
'sp_singlelogoutservice' => [ [ $base . '/wp-login.php?sso=spid&slo', '' ] ],
'sp_org_name' => $this->options['sp_org_name'] ?: "myservice",
'sp_org_display_name' => $this->options['sp_org_display_name'] ?: "My Service",
'idp_metadata_folder' => "$home/idp_metadata/",
'sp_attributeconsumingservice' => [ $sp_attributeconsumingservice ],
'sp_key_cert_values' => [
'countryName' => 'IT',
'stateOrProvinceName' => $this->options['sp_stateName'] ?: "Roma",
'localityName' => $this->options['sp_localityName'] ?: 'Ostia',
'commonName' => parse_url( get_home_url(), PHP_URL_HOST ),
'emailAddress' => $this->options['sp_emailAddress'] ?: 'test@example.com',
],
];
$this->auth = new Italia\Spid\Sp( $settings );
// https://codex.wordpress.org/Plugin_API/Filter_Reference/login_message
add_filter( 'login_message', array( $this, 'filterLoginMessage' ) );
// https://codex.wordpress.org/Plugin_API/Filter_Reference/authenticate
// After wp_authenticate_username_password runs.
add_filter( 'authenticate', array( $this, 'filterAuthenticate' ), 21, 3 );
// https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_authenticate_user
// after WordPress's basic validation, but before a user is logged in
add_filter( 'wp_authenticate_user', array( $this, 'filterSpid' ), 10, 2 );
// https://codex.wordpress.org/Plugin_API/Action_Reference/wp_logout
// triggered when a user logs out using the wp_logout() function
add_action( 'wp_logout', array( $this, 'actionLogout' ) );
// https://codex.wordpress.org/Plugin_API/Action_Reference/admin_notices
add_action( 'admin_notices', array( $this, 'actionGdprNotice' ) );
$this->define_admin_hooks();
$this->spid_enqueue_scripts();
}
public function actionLogout() {
header('Location: /wp-login.php?sso=spid&slo');
exit("");
}
public function actionGdprNotice() {
?>
<div class="notice notice-warning is-dismissible">
<p>Quando il plugin <strong>SPID WordPress</strong> è attivo, in base alle <a href="/admin.php?page=spid_opzioni&action=metadata">impostazioni sugli attributi utente</a>, esso può salvare "dati personali" degli utenti SPID nel database WordPress.</p>
<p>Il plugin acquisisce il "valido consenso" ai sensi della <strong>GDPR</strong> (Regolamento generale sulla protezione dei dati, in inglese General Data Protection Regulation), tuttavia <strong>restano in carico al gestore del Service Provider</strong>:
la sicurezza dell'installazione WordPress,
la gestione delle richieste da parte degli utenti di accesso e cancellazione dei dati,
la notifica delle violazioni dei dati
e la pubblicazione dell'informativa per gli utenti su fini e modalità del trattamento dei dati personali.
</p>
</div>
<?php
}
public function filterLoginMessage( $message ) {
$options = $this->options;
$query_args = array(
'sso' => $options['sp_sso'],
'idp' => $options['sp_idp'],
);
$mapping = $this->auth->getIdpList();
include_once SPID_WORDPRESS_PATH . 'templates/spid-button.php';
}
public function filterSpid( $user, $password ) {
if ( ! isset( $_GET['sso'] ) || ! ( $_GET['sso'] == 'spid' ) || ! isset( $_GET['idp'] ) ) {
if ( $user->get( 'spid_user' ) ) {
return new WP_Error( 'spid_wordpress_spid_login_required', "L'utente SPID può fare accesso solo tramite SPID." );
}
}
return $user;
}
public function filterAuthenticate( $user, $username, $password ) {
if ( isset( $_GET['sso'] ) && ( $_GET['sso'] == 'spid' ) ) {
if ( isset( $_GET['metadata'] ) ) {
// Metadata endpoint.
header( 'Content-type: text/xml' );
$smpmetadata = $this->auth->getSPMetadata();
echo $smpmetadata;
die;
} elseif ( isset( $_GET['idp'] ) ) {
// SSO endpoint
// shortname of IdP, same as the name of corresponding IdP metadata file, without .xml
$idpName = $_GET['idp'];
// index of assertion consumer service as per the SP metadata.
$assertId = 0;
// index of attribute consuming service as per the SP metadata.
$attrId = 0;
// SPID level (1, 2 or 3).
$spidLevel = get_option( 'sp_livello', '1' );
// return url, optional.
$returnTo = null;
$this->auth->login( $idpName, $assertId, $attrId, $spidLevel, $returnTo );
} elseif ( isset( $_GET['slo'] ) ) {
// single log out endpoint
if($this->auth->isAuthenticated()){
$this->auth->logout(0);
} else {
header('Location: /wp-login.php?loggedout=true');
exit("");
}
} elseif ( ! empty( $_POST['SAMLResponse'] ) ) {
// assertion consuming service endpoint
if ( ! $this->auth->isAuthenticated() ) {
return new WP_Error( 'spid_wordpress_not_authenticated', 'Qualcosa non ha funzionato nel login SPID.' );
}
$attributes = $this->auth->getAttributes();
if ( empty( $attributes ) || empty( $attributes['spidCode'] ) || empty( $attributes['email'] ) ) {
return new WP_Error( 'spid_wordpress_no_attributes', 'Non ho ricevuto i dati necessari da SPID.' );
}
$existing_user = get_user_by( 'login', $attributes['spidCode'] );
if ( $existing_user ) {
do_action( 'spid_wordpress_existing_user_authenticated', $existing_user, $attributes );
return $existing_user;
}
$user_args = array();
$user_args['user_login'] = $attributes['spidCode'];
$user_args['first_name'] = ! empty( $attributes['name'] ) ? $attributes['name'] : '';
$user_args['last_name'] = ! empty( $attributes['familyName'] ) ? $attributes['familyName'] : '';
$user_args['user_email'] = $attributes['email'];
$user_args['role'] = get_option( 'sp_role', get_option( 'default_role' ) );
$user_args['user_pass'] = wp_generate_password();
$user_args = apply_filters( 'spid_wordpress_insert_user', $user_args, $attributes );
// https://developer.wordpress.org/reference/functions/wp_insert_user/
$user_id = wp_insert_user( $user_args );
if ( is_wp_error( $user_id ) ) {
return $user_id;
}
$user = get_user_by( 'id', $user_id );
add_user_meta ( $user_id, 'spid_user', true, true );
foreach ( $attributes as $key => $value ) {
if ( ! in_array( $key, ['spidCode', 'name', 'familyName', 'email'] ) ) {
add_user_meta ( $user_id, "spid_$key", $value, true );
}
}
} else {
return new WP_Error( 'spid_wrong_endpoint', 'Qualcosa di strano sta succedendo.' );
}
} else {
// Ignore.
}
do_action( 'spid_wordress_new_user_authenticated', $user, $attributes );
return $user;
}
private function define_admin_hooks() {
$plugin_admin = new SPID_Admin();
}
public function getOptions() {
$options['sp_org_name'] = get_option( 'sp_org_name' );
$options['sp_org_display_name'] = get_option( 'sp_org_display_name' );
$options['sp_sso'] = get_option( 'sp_sso', 'spid' );
$options['sp_idp'] = get_option( 'sp_idp', 'testenv2' );
$options['sp_livello'] = get_option( 'sp_livello' );
$options['sp_attributes']['sp_spidCode'] = get_option( 'sp_spidCode' );
$options['sp_attributes']['sp_name'] = get_option( 'sp_name' );
$options['sp_attributes']['sp_familyName'] = get_option( 'sp_familyName' );
$options['sp_attributes']['sp_placeOfBirth'] = get_option( 'sp_placeOfBirth' );
$options['sp_attributes']['sp_countyOfBirth'] = get_option( 'sp_countyOfBirth' );
$options['sp_attributes']['sp_dateOfBirth'] = get_option( 'sp_dateOfBirth' );
$options['sp_attributes']['sp_gender'] = get_option( 'sp_gender' );
$options['sp_attributes']['sp_companyName'] = get_option( 'sp_companyName' );
$options['sp_attributes']['sp_registeredOffice'] = get_option( 'sp_registeredOffice' );
$options['sp_attributes']['sp_fiscalNumber'] = get_option( 'sp_fiscalNumber' );
$options['sp_attributes']['sp_ivaCode'] = get_option( 'sp_ivaCode' );
$options['sp_attributes']['sp_idCard'] = get_option( 'sp_idCard' );
$options['sp_attributes']['sp_mobilePhone'] = get_option( 'sp_mobilePhone' );
$options['sp_attributes']['sp_email'] = get_option( 'sp_email' );
$options['sp_attributes']['sp_address'] = get_option( 'sp_address' );
$options['sp_attributes']['sp_expirationDate'] = get_option( 'sp_expirationDate' );
$options['sp_attributes']['sp_digitalAddress'] = get_option( 'sp_digitalAddress' );
return $options;
}
public function findActiveAttributes( $options ) {
$active_attributes = [];
foreach ( $options['sp_attributes'] as $key => $value ) {
if ( $value == 'on' ) {
$active_attributes[] = substr( $key, 3 );
}
}
return $active_attributes;
}
/**
* Enqueue scripts and CSS. Loads in login and wp-admin only.
*
* @return void
*/
public function spid_enqueue_scripts() {
function enqueue_login_script() {
wp_enqueue_script( 'spid-smart-button-script', 'https://italia.github.io/spid-smart-button/spid-button.min.js', true, '1.0.0' );
}
add_action( 'login_enqueue_scripts', 'enqueue_login_script', 10 );
function load_spid_css() {
wp_register_style( 'custom_wp_admin_css', SPID_WORDPRESS_URL . 'public/css/style.css', true, '1.0.0' );
wp_enqueue_style( 'custom_wp_admin_css' );
wp_enqueue_style( 'spid_smart_button', 'https://italia.github.io/spid-smart-button/spid-button.min.css', true, '1.0.0' );
}
add_action( 'admin_enqueue_scripts', 'load_spid_css', 10 );
add_action( 'login_enqueue_scripts', 'load_spid_css', 10 );
}
}