675 lines
No EOL
20 KiB
PHP
675 lines
No EOL
20 KiB
PHP
<?php
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/**
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* Replace reCaptcha v3 with ReCaptcha v2
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* Use [recaptcha] shortcode when possible
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*/
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defined( 'ABSPATH' ) or die( 'You cannot be here.' );
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/**
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* Remove old hooks and add new hook callbacks
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*
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* @return void
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*/
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function iqfix_wpcf7_manage_hooks() {
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// reCaptcha Verification
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remove_filter( 'wpcf7_spam', 'wpcf7_recaptcha_verify_response', 9 );
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add_filter( 'wpcf7_spam', 'iqfix_wpcf7_recaptcha_check_with_google', 9 );
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// reCaptcha Enqueues
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remove_action( 'wp_enqueue_scripts', 'wpcf7_recaptcha_enqueue_scripts', 10 );
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add_action( 'wp_enqueue_scripts', 'iqfix_wpcf7_recaptcha_enqueue_scripts', 9 );
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// reCaptcha Footer Javascript
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remove_action( 'wp_footer', 'wpcf7_recaptcha_onload_script', 40 );
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add_action( 'wp_footer', 'iqfix_wpcf7_recaptcha_callback_script', 40 );
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}
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add_action( 'setup_theme', 'iqfix_wpcf7_manage_hooks' );
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/**
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* Remove current [recaptcha] tag and replace it with old reCaptcha tag
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*
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* @return void
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*/
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function iqfix_wpcf7_add_recaptcha_tag() {
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wpcf7_remove_form_tag( 'recaptcha' );
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wpcf7_add_form_tag(
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'recaptcha',
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'iqfix_wpcf7_recaptcha_form_tag_handler',
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array( 'display-block' => true )
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);
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}
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add_action( 'wpcf7_init', 'iqfix_wpcf7_add_recaptcha_tag', 20 );
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/**
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* Register the Google reCaptcha API script
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN241
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*
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* @return void
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*/
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function iqfix_wpcf7_recaptcha_enqueue_scripts() {
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$source = WPCF7::get_option( 'iqfix_recaptcha_source' );
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$source = IQFix_WPCF7_Deity::verify_recaptcha_source( $source );
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$url = sprintf( 'https://www.%s/recaptcha/api.js', $source );
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$url = add_query_arg( array(
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'hl' => esc_attr( get_locale() ), // Lowercase L
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'onload' => 'recaptchaCallback',
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'render' => 'explicit',
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), $url );
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wp_register_script( 'google-recaptcha', $url, array(), '2.0', true );
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wp_localize_script( 'google-recaptcha', 'wpcf7iqfix', array(
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'recaptcha_empty' => esc_html__( 'Please verify that you are not a robot.', 'wpcf7-recaptcha' ),
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) );
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}
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// See `iqfix_wpcf7_manage_hooks` callback above
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/**
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* reCaptcha Javascript
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*
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* @return void
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*/
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function iqfix_wpcf7_recaptcha_callback_script() {
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if ( ! wp_script_is( 'google-recaptcha', 'enqueued' ) ) {
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return;
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}
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?>
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<script type="text/javascript">
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var recaptchaWidgets = [];
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var recaptchaCallback = function() {
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var forms = document.getElementsByTagName( 'form' );
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var pattern = /(^|\s)g-recaptcha(\s|$)/;
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for ( var i = 0; i < forms.length; i++ ) {
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var divs = forms[ i ].getElementsByTagName( 'div' );
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for ( var j = 0; j < divs.length; j++ ) {
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var sitekey = divs[ j ].getAttribute( 'data-sitekey' );
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if ( divs[ j ].className && divs[ j ].className.match( pattern ) && sitekey ) {
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var params = {
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'sitekey': sitekey,
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'type': divs[ j ].getAttribute( 'data-type' ),
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'size': divs[ j ].getAttribute( 'data-size' ),
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'theme': divs[ j ].getAttribute( 'data-theme' ),
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'align': divs[ j ].getAttribute( 'data-align' ),
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'badge': divs[ j ].getAttribute( 'data-badge' ),
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'tabindex': divs[ j ].getAttribute( 'data-tabindex' )
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};
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var callback = divs[ j ].getAttribute( 'data-callback' );
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if ( callback && 'function' == typeof window[ callback ] ) {
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params[ 'callback' ] = window[ callback ];
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}
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var expired_callback = divs[ j ].getAttribute( 'data-expired-callback' );
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if ( expired_callback && 'function' == typeof window[ expired_callback ] ) {
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params[ 'expired-callback' ] = window[ expired_callback ];
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}
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var widget_id = grecaptcha.render( divs[ j ], params );
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recaptchaWidgets.push( widget_id );
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break;
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}
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}
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}
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};
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document.addEventListener( 'wpcf7submit', function( event ) {
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switch ( event.detail.status ) {
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case 'spam':
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case 'mail_sent':
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case 'mail_failed':
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for ( var i = 0; i < recaptchaWidgets.length; i++ ) {
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grecaptcha.reset( recaptchaWidgets[ i ] );
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}
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}
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}, false );
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document.addEventListener( 'wpcf7spam', function( event ) {
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var wpcf7forms = document.getElementsByClassName( 'wpcf7' );
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Array.prototype.forEach.call( wpcf7forms, function( form ) {
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if( form.getAttribute( 'id' ) != event.target.getAttribute( 'id' ) ) {
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return;
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}
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var response = form.querySelector( 'input[name="g-recaptcha-response"]' );
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var recaptcha = form.querySelector( 'div.wpcf7-recaptcha' );
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if( '' === response.value ) {
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var recaptchaWrapper = recaptcha.parentElement;
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wpcf7.notValidTip( recaptchaWrapper, wpcf7iqfix.recaptcha_empty );
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}
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} );
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} );
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</script>
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<?php
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}
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// See `iqfix_wpcf7_manage_hooks` callback above
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/**
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* reCaptcha Callback
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5
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* contact-form-7\modules\recaptcha.php LN326
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*
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* @param WPCF7_FormTag $tag
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*
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* @return String $html
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*/
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function iqfix_wpcf7_recaptcha_form_tag_handler( $tag ) {
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if ( ! wp_script_is( 'google-recaptcha', 'registered' ) && function_exists( 'wpcf7_recaptcha_enqueue_scripts' ) ) {
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wpcf7_recaptcha_enqueue_scripts();
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}
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wp_enqueue_script( 'google-recaptcha' );
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$atts = array();
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$recaptcha = WPCF7_RECAPTCHA::get_instance();
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$atts['data-sitekey'] = $recaptcha->get_sitekey();
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$atts['data-type'] = $tag->get_option( 'type', '(audio|image)', true );
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$atts['data-size'] = $tag->get_option(
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'size', '(compact|normal|invisible)', true );
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$atts['data-theme'] = $tag->get_option( 'theme', '(dark|light)', true );
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$atts['data-align'] = $tag->get_option( 'align', '(left|center|right)', true );
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$atts['data-badge'] = $tag->get_option(
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'badge', '(bottomright|bottomleft|inline)', true );
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$atts['data-tabindex'] = $tag->get_option( 'tabindex', 'signed_int', true );
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$atts['data-callback'] = $tag->get_option( 'callback', '', true );
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$atts['data-expired-callback'] =
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$tag->get_option( 'expired_callback', '', true );
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$atts['class'] = $tag->get_class_option(
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wpcf7_form_controls_class( $tag->type, 'g-recaptcha' ) );
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$atts['id'] = $tag->get_id_option();
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$html = sprintf( '<div %1$s></div>', wpcf7_format_atts( $atts ) );
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$html .= iqfix_wpcf7_recaptcha_noscript(
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array( 'sitekey' => $atts['data-sitekey'] ) );
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$html = sprintf( '<div class="wpcf7-form-control-wrap">%s</div>', $html );
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return $html;
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}
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// See `iqfix_wpcf7_add_recaptcha_tag` callback above.
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/**
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* Display reCaptcha noscript tag should javacript be disabled.
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN360
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*
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* @param Array $args
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*
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* @return String
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*/
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function iqfix_wpcf7_recaptcha_noscript( $args = '' ) {
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$args = wp_parse_args( $args, array(
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'sitekey' => '',
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) );
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if ( empty( $args['sitekey'] ) ) {
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return;
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}
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$source = WPCF7::get_option( 'iqfix_recaptcha_source' );
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$source = IQFix_WPCF7_Deity::verify_recaptcha_source( $source );
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$url = add_query_arg( 'k', $args['sitekey'],
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sprintf( 'https://www.%s/recaptcha/api/fallback', $source )
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);
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ob_start();
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?>
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<noscript>
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<div class="grecaptcha-noscript">
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<iframe src="<?php echo esc_url( $url ); ?>" frameborder="0" scrolling="no" width="310" height="430">
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</iframe>
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<textarea name="g-recaptcha-response" rows="3" cols="40" placeholder="<?php esc_attr_e( 'reCaptcha Response Here', 'wpcf7-recaptcha' ); ?>">
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</textarea>
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</div>
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</noscript>
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<?php
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return ob_get_clean();
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}
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/**
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* Verify submission is legitimate, verify reCaptcha response
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN395
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*
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* @param Boolean $spam
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*
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* @return Boolean $spam
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*/
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function iqfix_wpcf7_recaptcha_check_with_google( $spam ) {
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if ( $spam ) {
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return $spam;
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}
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$contact_form = wpcf7_get_current_contact_form();
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if ( ! $contact_form ) {
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return $spam;
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}
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$tags = $contact_form->scan_form_tags( array( 'type' => 'recaptcha' ) );
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if ( empty( $tags ) ) {
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return $spam;
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}
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$recaptcha = IQFix_ReCaptcha::get_instance();
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if( ! $recaptcha->is_active() ) {
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return $spam;
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}
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$response_token = wpcf7_recaptcha_response();
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$spam = ! $recaptcha->verify( $response_token );
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return $spam;
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}
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// See `iqfix_wpcf7_manage_hooks` callback above
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/**
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* Grab and return the posted reCaptcha response
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN509
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*
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* @return String|FALSE
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*/
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function wpcf7_recaptcha_response() {
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if ( isset( $_POST['g-recaptcha-response'] ) ) {
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return $_POST['g-recaptcha-response'];
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}
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return false;
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}
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/**
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* Add [recaptcha] to Contact Form 7 field list
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN426
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*
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* @return void
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*/
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function iqfix_wpcf7_add_tag_generator_recaptcha() {
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$tag_generator = WPCF7_TagGenerator::get_instance();
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$tag_generator->add(
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'recaptcha',
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esc_html__( 'reCaptcha', 'wpcf7-recaptcha' ),
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'iqfix_wpcf7_tag_generator_recaptcha',
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array( 'nameless' => 1 )
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);
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}
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add_action( 'wpcf7_admin_init', 'iqfix_wpcf7_add_tag_generator_recaptcha', 45 );
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/**
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* Show [recaptcha] field settings
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*
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* The following function was not written by IQComputing and is included in
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* Contact Form 7 v5.0.5 by Takayuki Miyoshi
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* contact-form-7\modules\recaptcha.php LN432
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*
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* @param WPCF7_ContactForm $contact_form
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* @param Array $args
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*
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* @return void
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*/
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function iqfix_wpcf7_tag_generator_recaptcha( $contact_form, $args = '' ) {
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$args = wp_parse_args( $args, array() );
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$recaptcha = IQFix_ReCaptcha::get_instance();
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if ( ! $recaptcha->is_active() ) {
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?>
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<div class="control-box">
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<fieldset>
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<legend><?php
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/* translators: %s is a link to the Contact Form 7 blog post regarding reCaptcha v3 */
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echo sprintf( esc_html__( "To use reCaptcha, first you need to install an API key pair. For more details, see %s.", 'wpcf7-recaptcha' ), wpcf7_link( 'https://contactform7.com/recaptcha/', esc_html__( 'reCaptcha', 'wpcf7-recaptcha' ) ) );
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?></legend>
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</fieldset>
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</div>
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<?php
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return;
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}
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/* translators: %s is a link to the Contact Form 7 blog post regarding reCaptcha v3 */
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$description = esc_html__( "Generate a form-tag for a reCaptcha widget. For more details, see %s.", 'wpcf7-recaptcha' );
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$desc_link = wpcf7_link( 'https://contactform7.com/recaptcha/', esc_html__( 'reCaptcha', 'wpcf7-recaptcha' ) );
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?>
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<div class="control-box">
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<fieldset>
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<legend><?php echo sprintf( $description, $desc_link ); ?></legend>
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<table class="form-table">
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<tbody>
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<tr>
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<th scope="row"><?php
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/* translators: ReCaptcha size (normal or compact) */
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esc_html_e( 'Size', 'wpcf7-recaptcha' );
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?></th>
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<td>
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<fieldset>
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<legend class="screen-reader-text"><?php
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/* translators: Screen reader text, reCaptcha size (normal or compact) */
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esc_html_e( 'Size', 'wpcf7-recaptcha' );
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?></legend>
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<label for="<?php echo esc_attr( $args['content'] . '-size-normal' ); ?>"><input type="radio" name="size" class="option default" id="<?php echo esc_attr( $args['content'] . '-size-normal' ); ?>" value="normal" checked="checked" /> <?php /* translators: ReCaptcha size: normal */ esc_html_e( 'Normal', 'wpcf7-recaptcha' ); ?></label>
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<br />
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<label for="<?php echo esc_attr( $args['content'] . '-size-compact' ); ?>"><input type="radio" name="size" class="option" id="<?php echo esc_attr( $args['content'] . '-size-compact' ); ?>" value="compact" /> <?php /* translators: ReCaptcha size: compact */ esc_html_e( 'Compact', 'wpcf7-recaptcha' ); ?></label>
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</fieldset>
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</td>
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</tr>
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<tr>
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<th scope="row"><?php
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/* translators: ReCaptcha theme (light or dark) */
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esc_html_e( 'Theme', 'wpcf7-recaptcha' );
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?></th>
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<td>
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<fieldset>
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<legend class="screen-reader-text"><?php
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/* translators: Screen reader text, reCaptcha theme (light or dark) */
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esc_html_e( 'Theme', 'wpcf7-recaptcha' );
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?></legend>
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<label for="<?php echo esc_attr( $args['content'] . '-theme-light' ); ?>"><input type="radio" name="theme" class="option default" id="<?php echo esc_attr( $args['content'] . '-theme-light' ); ?>" value="light" checked="checked" /> <?php /* translators: ReCaptcha theme: light */ esc_html_e( 'Light', 'wpcf7-recaptcha' ); ?></label>
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<br />
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<label for="<?php echo esc_attr( $args['content'] . '-theme-dark' ); ?>"><input type="radio" name="theme" class="option" id="<?php echo esc_attr( $args['content'] . '-theme-dark' ); ?>" value="dark" /> <?php /* translators: ReCaptcha theme: dark */ esc_html_e( 'Dark', 'wpcf7-recaptcha' ); ?></label>
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</fieldset>
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</td>
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</tr>
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<tr>
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<th scope="row"><?php
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/* translators: ReCaptcha theme (light or dark) */
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esc_html_e( 'Alignment', 'wpcf7-recaptcha' );
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?></th>
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<td>
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<fieldset>
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<legend class="screen-reader-text"><?php
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/* translators: Alignment of the reCaptcha box (left, center, right) */
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esc_html_e( 'Alignment', 'wpcf7-recaptcha' );
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?></legend>
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<label for="<?php echo esc_attr( $args['content'] . '-align-left' ); ?>"><input type="radio" name="align" class="option default" id="<?php echo esc_attr( $args['content'] . '-align-left' ); ?>" value="left" checked="checked" /> <?php /* translators: ReCaptcha alignment: left */ esc_html_e( 'Left', 'wpcf7-recaptcha' ); ?></label>
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<br />
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<label for="<?php echo esc_attr( $args['content'] . '-align-center' ); ?>"><input type="radio" name="align" class="option" id="<?php echo esc_attr( $args['content'] . '-align-center' ); ?>" value="center" /> <?php /* translators: ReCaptcha alignment: center */ esc_html_e( 'Center', 'wpcf7-recaptcha' ); ?></label>
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<br />
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<label for="<?php echo esc_attr( $args['content'] . '-align-right' ); ?>"><input type="radio" name="align" class="option" id="<?php echo esc_attr( $args['content'] . '-align-right' ); ?>" value="right" /> <?php /* translators: ReCaptcha alignment: right */ esc_html_e( 'Right', 'wpcf7-recaptcha' ); ?></label>
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</fieldset>
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</td>
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</tr>
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<tr>
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<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-id' ); ?>"><?php
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/* translators: HTML Attribute ID for reCaptcha box */
|
|
esc_html_e( 'Id attribute', 'wpcf7-recaptcha' );
|
|
?></label></th>
|
|
<td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-id' ); ?>" /></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-class' ); ?>"><?php
|
|
/* translators: HTML Attribute class for reCaptcha box */
|
|
esc_html_e( 'Class attribute', 'wpcf7-recaptcha' );
|
|
?></label></th>
|
|
<td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-class' ); ?>" /></td>
|
|
</tr>
|
|
|
|
</tbody>
|
|
</table>
|
|
</fieldset>
|
|
</div>
|
|
|
|
<div class="insert-box">
|
|
<input type="text" name="recaptcha" class="tag code" readonly="readonly" onfocus="this.select()" />
|
|
|
|
<div class="submitbox">
|
|
<input type="button" class="button button-primary insert-tag" value="<?php
|
|
/* translators: Insert shortcode tag into the page content */
|
|
esc_attr_e( 'Insert Tag', 'wpcf7-recaptcha' );
|
|
?>" />
|
|
</div>
|
|
</div>
|
|
<?php
|
|
|
|
}
|
|
// See `iqfix_wpcf7_add_tag_generator_recaptcha` callback above
|
|
|
|
|
|
/**
|
|
* The following class is supposed to use and replicate some functionality
|
|
* From Contact Form 7 v5.0.5
|
|
*
|
|
* @return void
|
|
*/
|
|
function iqfix_recaptcha_class_init() {
|
|
|
|
if( ! class_exists( 'WPCF7_RECAPTCHA' ) ) {
|
|
return false;
|
|
}
|
|
|
|
Class IQFix_ReCaptcha extends WPCF7_RECAPTCHA {
|
|
|
|
private static $instance;
|
|
private $sitekeys;
|
|
|
|
|
|
/**
|
|
* Class initialization
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN202
|
|
*
|
|
* return void
|
|
*/
|
|
private function __construct() {
|
|
|
|
if( defined( 'WPCF7_RECAPTCHA_SITEKEY' ) && defined( 'WPCF7_RECAPTCHA_SECRET' ) ) {
|
|
$this->sitekeys = array( WPCF7_RECAPTCHA_SITEKEY => WPCF7_RECAPTCHA_SECRET );
|
|
} else {
|
|
$this->sitekeys = WPCF7::get_option( 'recaptcha' );
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Singleton
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN10
|
|
*
|
|
* @return IQFix_ReCaptcha
|
|
*/
|
|
public static function get_instance() {
|
|
if ( empty( self::$instance ) ) {
|
|
self::$instance = new self;
|
|
}
|
|
|
|
return self::$instance;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if reCaptcha is active
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN26
|
|
*
|
|
* @return Boolean
|
|
*/
|
|
public function is_active() {
|
|
$sitekey = $this->get_sitekey();
|
|
$secret = $this->get_secret( $sitekey );
|
|
return $sitekey && $secret;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get set reCaptcha sitekey
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN45
|
|
*
|
|
* @return String|FALSE
|
|
*/
|
|
public function get_sitekey() {
|
|
if ( empty( $this->sitekeys )
|
|
or ! is_array( $this->sitekeys ) ) {
|
|
return false;
|
|
}
|
|
|
|
$sitekeys = array_keys( $this->sitekeys );
|
|
|
|
return $sitekeys[0];
|
|
}
|
|
|
|
|
|
/**
|
|
* Get set reCaptcha secret key
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN55
|
|
*
|
|
* @return String|FALSE
|
|
*/
|
|
public function get_secret( $sitekey ) {
|
|
$sitekeys = (array) $this->sitekeys;
|
|
|
|
if ( isset( $sitekeys[$sitekey] ) ) {
|
|
return $sitekeys[$sitekey];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Verify reCaptcha Response
|
|
*
|
|
* The following method was not written by IQComputing and is included in
|
|
* Contact Form 7 v5.0.5 by Takayuki Miyoshi
|
|
* contact-form-7\modules\recaptcha.php LN65
|
|
*
|
|
* @param String $response_token
|
|
*
|
|
* @return Boolean $is_human
|
|
*/
|
|
public function verify( $response_token ) {
|
|
|
|
$is_human = false;
|
|
|
|
if ( empty( $response_token ) ) {
|
|
return $is_human;
|
|
}
|
|
|
|
$source = WPCF7::get_option( 'iqfix_recaptcha_source' );
|
|
$source = IQFix_WPCF7_Deity::verify_recaptcha_source( $source );
|
|
$endpoint = sprintf( 'https://www.%s/recaptcha/api/siteverify', $source );
|
|
$sitekey = $this->get_sitekey();
|
|
$secret = $this->get_secret( $sitekey );
|
|
$request = array(
|
|
'body' => array(
|
|
'secret' => $secret,
|
|
'response' => $response_token,
|
|
'remoteip' => $_SERVER['REMOTE_ADDR'],
|
|
),
|
|
);
|
|
|
|
$response = wp_safe_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 = wp_remote_retrieve_body( $response );
|
|
$response = json_decode( $response, true );
|
|
$is_human = isset( $response['success'] ) && true == $response['success'];
|
|
|
|
return apply_filters( 'wpcf7_recaptcha_verify_response', $is_human, $response );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
add_action( 'init', 'iqfix_recaptcha_class_init', 11 );
|
|
|
|
|
|
/**
|
|
* Add some inline CSS for the reCaptcha iframe
|
|
*
|
|
* @return void
|
|
*/
|
|
function iqfix_recaptcha_inline_css() {
|
|
|
|
$iqfix_css = '.wpcf7 .wpcf7-recaptcha iframe {margin-bottom: 0;}';
|
|
$iqfix_css .= '.wpcf7 .wpcf7-recaptcha[data-align="center"] > div {margin: 0 auto;}';
|
|
$iqfix_css .= '.wpcf7 .wpcf7-recaptcha[data-align="right"] > div {margin: 0 0 0 auto;}';
|
|
wp_add_inline_style( 'contact-form-7', $iqfix_css );
|
|
|
|
}
|
|
add_action( 'wp_enqueue_scripts', 'iqfix_recaptcha_inline_css' );
|