*/ class MEC_captcha extends MEC_base { const GOOGLE = 'grecaptcha'; const MTCAPTCHA = 'mtcaptcha'; /** * @var MEC_main */ public $main; /** * @var array */ public $settings; /** * Constructor method * @author Webnus */ public function __construct() { // MEC Main library $this->main = $this->getMain(); // MEC settings $this->settings = $this->main->get_settings(); } public function assets() { // Captcha Client $client = $this->client(); // Captcha is disabled if(!$client) return false; // Current locale $locale = $this->main->get_current_language(); // Google Recaptcha if($client === self::GOOGLE) { // Include Google Recaptcha Javascript API if(apply_filters('mec_grecaptcha_include', true)) wp_enqueue_script('recaptcha', '//www.google.com/recaptcha/api.js?hl='.str_replace('_', '-', $locale), array(), $this->main->get_version(), true); } elseif($client === self::MTCAPTCHA) { $ex = explode('_', $locale); $lang_code = $ex[0]; add_action('wp_head', function() use ($lang_code) { ?> client(); // Captcha is disabled if(!$client) return ''; // Google Recaptcha if($client === self::GOOGLE) { return '

'; } elseif($client === self::MTCAPTCHA) { return '

'; } return ''; } public function is_valid() { // Captcha Client $client = $this->client(); // Captcha is disabled if(!$client) return false; // Google Recaptcha if($client === self::GOOGLE) { $token = isset($_REQUEST['g-recaptcha-response']) ? sanitize_text_field($_REQUEST['g-recaptcha-response']) : NULL; $req = ""; foreach([ 'secret' => $this->settings['google_recaptcha_secretkey'] ?? '', 'remoteip' => $this->main->get_client_ip(), 'v' => 'php_1.0', 'response' => $token ] as $key=>$value) $req .= $key.'='.urlencode(stripslashes($value)).'&'; // Validate the re-captcha $response = $this->main->get_web_page("https://www.google.com/recaptcha/api/siteverify?".trim($req, '& ')); $answers = json_decode($response, true); if(isset($answers['success']) and trim($answers['success'])) return true; else return false; } elseif($client === self::MTCAPTCHA) { $token = isset($_REQUEST['mtcaptcha-verifiedtoken']) ? sanitize_text_field($_REQUEST['mtcaptcha-verifiedtoken']) : NULL; // Validate the re-captcha $response = $this->main->get_web_page("https://service.mtcaptcha.com/mtcv1/api/checktoken?privatekey=".urlencode(stripslashes($this->settings['mtcaptcha_privatekey']))."&token=".urlencode(stripslashes($token))); $answers = json_decode($response, true); if(isset($answers['success']) and $answers['success']) return true; else return false; } return false; } /** * @param string $section * @return bool */ public function status($section = '') { // Captcha Client $client = $this->client(); // Captcha is disabled if(!$client) return false; // Google Recaptcha if($client === self::GOOGLE) { // Check if the feature is enabled for certain section if(trim($section) and (!isset($this->settings['google_recaptcha_'.$section]) or (isset($this->settings['google_recaptcha_'.$section]) and !$this->settings['google_recaptcha_'.$section]))) return false; // Check if site key and secret key is not empty if(!isset($this->settings['google_recaptcha_sitekey']) or (isset($this->settings['google_recaptcha_sitekey']) and trim($this->settings['google_recaptcha_sitekey']) === '')) return false; if(!isset($this->settings['google_recaptcha_secretkey']) or (isset($this->settings['google_recaptcha_secretkey']) and trim($this->settings['google_recaptcha_secretkey']) === '')) return false; } elseif($client === self::MTCAPTCHA) { // Check if the feature is enabled for certain section if(trim($section) and (!isset($this->settings['mtcaptcha_'.$section]) or (isset($this->settings['mtcaptcha_'.$section]) and !$this->settings['mtcaptcha_'.$section]))) return false; // Check if site key and secret key is not empty if(!isset($this->settings['mtcaptcha_sitekey']) or (isset($this->settings['mtcaptcha_sitekey']) and trim($this->settings['mtcaptcha_sitekey']) === '')) return false; if(!isset($this->settings['mtcaptcha_privatekey']) or (isset($this->settings['mtcaptcha_privatekey']) and trim($this->settings['mtcaptcha_privatekey']) === '')) return false; } return true; } public function client() { // Google Recaptcha if(isset($this->settings['google_recaptcha_status']) and $this->settings['google_recaptcha_status']) return self::GOOGLE; // MTCaptcha elseif(isset($this->settings['mtcaptcha_status']) and $this->settings['mtcaptcha_status']) return self::MTCAPTCHA; return false; } }