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<?php |
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if ( ! defined( 'ABSPATH' ) ) { |
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die( 'You are not allowed to call this page directly.' ); |
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} |
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|
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/** |
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* @since 3.0 |
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*/ |
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class FrmFieldCaptcha extends FrmFieldType { |
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|
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/** |
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* @var string |
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* @since 3.0 |
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*/ |
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protected $type = 'captcha'; |
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|
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/** |
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* @return string |
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*/ |
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protected function include_form_builder_file() { |
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return FrmAppHelper::plugin_path() . '/classes/views/frm-fields/back-end/field-captcha.php'; |
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} |
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|
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/** |
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* @return array |
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*/ |
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protected function field_settings_for_type() { |
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return array( |
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'required' => false, |
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'invalid' => true, |
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'captcha_size' => true, |
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'default' => false, |
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); |
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} |
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|
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/** |
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* @return array |
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*/ |
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protected function new_field_settings() { |
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$frm_settings = FrmAppHelper::get_settings(); |
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|
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return array( |
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'invalid' => $frm_settings->re_msg, |
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); |
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} |
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|
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/** |
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* @return array |
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*/ |
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protected function extra_field_opts() { |
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return array( |
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'label' => 'none', |
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'captcha_size' => 'normal', |
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'captcha_theme' => 'light', |
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); |
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} |
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|
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/** |
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* Remove the "for" attribute for captcha |
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* |
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* @param array $args |
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* @param string $html |
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* |
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* @return string |
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*/ |
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protected function before_replace_html_shortcodes( $args, $html ) { |
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return str_replace( ' for="field_[key]"', ' for="g-recaptcha-response"', $html ); |
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} |
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|
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public function front_field_input( $args, $shortcode_atts ) { |
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$frm_settings = FrmAppHelper::get_settings(); |
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if ( empty( $frm_settings->pubkey ) ) { |
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return ''; |
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} |
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|
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$class_prefix = $this->class_prefix(); |
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$captcha_size = $this->captcha_size(); |
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$allow_mutiple = $frm_settings->re_multi; |
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|
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$html = '<div id="' . esc_attr( $args['html_id'] ) . '" class="' . esc_attr( $class_prefix ) . 'g-recaptcha" data-sitekey="' . esc_attr( $frm_settings->pubkey ) . '" data-size="' . esc_attr( $captcha_size ) . '" data-theme="' . esc_attr( $this->field['captcha_theme'] ) . '"'; |
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if ( $captcha_size == 'invisible' && ! $allow_mutiple ) { |
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$html .= ' data-callback="frmAfterRecaptcha"'; |
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} |
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$html .= '></div>'; |
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|
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return $html; |
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} |
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|
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protected function load_field_scripts( $args ) { |
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$api_js_url = $this->api_url(); |
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|
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wp_register_script( 'recaptcha-api', $api_js_url, array( 'formidable' ), '3', true ); |
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wp_enqueue_script( 'recaptcha-api' ); |
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} |
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|
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protected function api_url() { |
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$api_js_url = 'https://www.google.com/recaptcha/api.js?'; |
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|
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$frm_settings = FrmAppHelper::get_settings(); |
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$allow_mutiple = $frm_settings->re_multi; |
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if ( $allow_mutiple ) { |
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$api_js_url .= '&onload=frmRecaptcha&render=explicit'; |
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} |
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|
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$lang = apply_filters( 'frm_recaptcha_lang', $frm_settings->re_lang, $this->field ); |
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if ( ! empty( $lang ) ) { |
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$api_js_url .= '&hl=' . $lang; |
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} |
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|
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return apply_filters( 'frm_recaptcha_js_url', $api_js_url ); |
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} |
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|
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protected function class_prefix() { |
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if ( $this->allow_multiple() ) { |
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$class_prefix = 'frm-'; |
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} else { |
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$class_prefix = ''; |
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} |
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|
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return $class_prefix; |
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} |
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|
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protected function allow_multiple() { |
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$frm_settings = FrmAppHelper::get_settings(); |
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|
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return $frm_settings->re_multi; |
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} |
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|
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/** |
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* @return string |
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*/ |
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protected function captcha_size() { |
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$frm_settings = FrmAppHelper::get_settings(); |
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if ( in_array( $frm_settings->re_type, array( 'invisible', 'v3' ), true ) ) { |
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return 'invisible'; |
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} |
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// for reverse compatibility |
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return $this->field['captcha_size'] === 'default' ? 'normal' : $this->field['captcha_size']; |
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} |
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|
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/** |
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* @since 4.07 |
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* @param array $args |
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* @return array |
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*/ |
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protected function validate_against_api( $args ) { |
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$errors = array(); |
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$frm_settings = FrmAppHelper::get_settings(); |
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$resp = $this->send_api_check( $frm_settings ); |
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$response = json_decode( wp_remote_retrieve_body( $resp ), true ); |
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|
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if ( is_wp_error( $resp ) ) { |
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$error_string = $resp->get_error_message(); |
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$errors[ 'field' . $args['id'] ] = __( 'There was a problem verifying your recaptcha', 'formidable' ); |
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$errors[ 'field' . $args['id'] ] .= ' ' . $error_string; |
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return $errors; |
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} |
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|
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if ( ! is_array( $response ) ) { |
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return $errors; |
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} |
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|
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if ( 'v3' === $frm_settings->re_type && array_key_exists( 'score', $response ) ) { |
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$threshold = floatval( $frm_settings->re_threshold ); |
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$score = floatval( $response['score'] ); |
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|
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$this->set_score( $score ); |
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|
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if ( $score < $threshold ) { |
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$response['success'] = false; |
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} |
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} |
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|
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if ( isset( $response['success'] ) && ! $response['success'] ) { |
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// What happens when the CAPTCHA was entered incorrectly |
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$invalid_message = FrmField::get_option( $this->field, 'invalid' ); |
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$errors[ 'field' . $args['id'] ] = ( $invalid_message == '' ? $frm_settings->re_msg : $invalid_message ); |
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} |
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|
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return $errors; |
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} |
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|
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/** |
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* @param float $score |
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* @return void |
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*/ |
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private function set_score( $score ) { |
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global $frm_vars; |
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if ( ! isset( $frm_vars['captcha_scores'] ) ) { |
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$frm_vars['captcha_scores'] = array(); |
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} |
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$form_id = is_object( $this->field ) ? $this->field->form_id : $this->field['form_id']; |
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if ( ! isset( $frm_vars['captcha_scores'][ $form_id ] ) ) { |
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$frm_vars['captcha_scores'][ $form_id ] = $score; |
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} |
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} |
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|
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/** |
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* @param array $args |
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* @return array |
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*/ |
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public function validate( $args ) { |
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if ( ! $this->should_validate() ) { |
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return array(); |
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} |
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|
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// phpcs:ignore WordPress.Security.NonceVerification.Missing |
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if ( ! isset( $_POST['g-recaptcha-response'] ) ) { |
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// There was no captcha submitted. |
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return array( 'field' . $args['id'] => __( 'The captcha is missing from this form', 'formidable' ) ); |
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} |
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|
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return $this->validate_against_api( $args ); |
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} |
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|
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/** |
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* @since 4.07 |
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* @return bool |
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*/ |
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private function should_show_captcha() { |
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$frm_settings = FrmAppHelper::get_settings(); |
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return ! empty( $frm_settings->pubkey ); |
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} |
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|
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protected function should_validate() { |
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$is_hidden_field = apply_filters( 'frm_is_field_hidden', false, $this->field, wp_unslash( $_POST ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing |
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if ( FrmAppHelper::is_admin() || $is_hidden_field ) { |
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return false; |
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} |
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|
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// don't require the captcha if it shouldn't be shown |
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return $this->should_show_captcha(); |
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} |
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|
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protected function send_api_check( $frm_settings ) { |
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$arg_array = array( |
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'body' => array( |
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'secret' => $frm_settings->privkey, |
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'response' => FrmAppHelper::get_param( 'g-recaptcha-response', '', 'post', 'sanitize_text_field' ), |
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'remoteip' => FrmAppHelper::get_ip_address(), |
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), |
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); |
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|
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return wp_remote_post( 'https://www.google.com/recaptcha/api/siteverify', $arg_array ); |
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} |
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} |
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|
