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<?php |
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/** |
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* Cloudflare Turnstile Validation for Contact Forms |
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* |
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* @package Contact Forms |
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* @subpackage Validation |
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* @since 1.9.14 |
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*/ |
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|
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// phpcs:disable WordPress.Security.NonceVerification, WordPress.Security.ValidatedSanitizedInput -- Server-side CAPTCHA validation requires POST data |
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|
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class AccuaForm_Validation_Turnstile extends Validation { |
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protected $message = 'Please verify you are not a robot.'; |
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protected $secretKey; |
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|
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public function isValid( $value ) { |
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// Check if user is whitelisted (from Turnstile plugin). |
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if ( function_exists( 'cfturnstile_whitelisted' ) && cfturnstile_whitelisted() ) { |
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return true; |
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} |
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|
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// Check if widget is disabled via filter. |
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// phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- Hook from Simple Cloudflare Turnstile plugin |
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if ( function_exists( 'apply_filters' ) && apply_filters( 'cfturnstile_widget_disable', false ) ) { |
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return true; |
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} |
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|
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// Check for Turnstile response. |
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if ( ! isset( $_POST['cf-turnstile-response'] ) || empty( $_POST['cf-turnstile-response'] ) ) { |
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return false; |
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} |
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|
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$response = stripslashes_deep( $_POST['cf-turnstile-response'] ); |
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|
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if ( '' === $response ) { |
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return false; |
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} |
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|
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// Use Turnstile plugin's verification function if available. |
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if ( function_exists( 'cfturnstile_check' ) ) { |
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$check = cfturnstile_check( $response ); |
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|
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if ( $check && isset( $check['success'] ) && true === $check['success'] ) { |
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return true; |
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} |
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|
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// Update error message if custom message is available. |
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if ( function_exists( 'cfturnstile_failed_message' ) ) { |
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$custom_message = cfturnstile_failed_message(); |
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if ( ! empty( $custom_message ) ) { |
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$this->message = $custom_message; |
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} |
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} |
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|
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return false; |
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} |
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|
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// Fallback: Direct verification if Turnstile plugin is not available. |
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if ( empty( $this->secretKey ) ) { |
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return false; |
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} |
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|
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$verify_url = 'https://challenges.cloudflare.com/turnstile/v0/siteverify'; |
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|
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$verify_data = array( |
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'secret' => $this->secretKey, |
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'response' => $response, |
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'remoteip' => isset( $_SERVER['REMOTE_ADDR'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REMOTE_ADDR'] ) ) : '', |
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); |
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|
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$response_obj = wp_remote_post( |
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$verify_url, |
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array( |
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'body' => $verify_data, |
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'timeout' => 20, |
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) |
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); |
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|
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if ( is_wp_error( $response_obj ) ) { |
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return false; |
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} |
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|
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$body = wp_remote_retrieve_body( $response_obj ); |
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$result = json_decode( $body, true ); |
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|
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if ( ! empty( $result['success'] ) ) { |
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return true; |
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} |
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|
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return false; |
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} |
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} |
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|
