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<?php namespace ElementPack\Modules\ContactForm; use ElementPack\Base\Element_Pack_Module_Base; use ElementPack\Utils; if (!defined('ABSPATH')) exit; // Exit if accessed directly class Module extends Element_Pack_Module_Base { public function get_name() { return 'contact-form'; } public function get_widgets() { $widgets = ['Contact_Form']; return $widgets; } public function is_valid_captcha() { $ep_api_settings = get_option('element_pack_api_settings'); if (isset($_POST['g-recaptcha-response']) && !empty($ep_api_settings['recaptcha_secret_key'])) { $remote_ip = isset($_SERVER["REMOTE_ADDR"]) ? sanitize_text_field( wp_unslash( $_SERVER["REMOTE_ADDR"] ) ) : ''; $response = wp_remote_post( 'https://www.google.com/recaptcha/api/siteverify', array( 'body' => array( 'secret' => $ep_api_settings['recaptcha_secret_key'], 'response' => sanitize_text_field( wp_unslash( $_POST['g-recaptcha-response'] ) ), 'remoteip' => $remote_ip, ), ) ); if (is_wp_error($response)) { return false; } $result = json_decode(wp_remote_retrieve_body($response), true); return (isset($result['success']) && $result['success'] === true); } return false; } public function normalize_email( $email ) { /** * Split the email into local part and domain */ list( $local, $domain ) = explode( '@', $email ); /** * Remove any text after the plus sign in the local part */ if ( ( $plusPos = strpos( $local, '+' ) ) !== false ) { $local = substr( $local, 0, $plusPos ); } /** * Return the normalized email */ return $local . '@' . $domain; } public function are_emails_same( $email1, $email2 ) { return $this->normalize_email( $email1 ) === $this->normalize_email( $email2 ); } public function contact_form() { $email = get_bloginfo('admin_email'); $error_empty = esc_html__('Please fill in all the required fields.', 'bdthemes-element-pack'); $error_noemail = esc_html__('Please enter a valid e-mail.', 'bdthemes-element-pack'); $error_same_as_admin = esc_html__('You can not use this e-mail due to security issues.', 'bdthemes-element-pack'); $error_spam_email = esc_html__('You are trying to send e-mail by banned e-mail. Multiple tries can ban you permanently!', 'bdthemes-element-pack'); $result = esc_html__('Unknown error! Please check your settings.', 'bdthemes-element-pack'); $ep_api_settings = get_option('element_pack_api_settings'); $api_settings = get_option('element_pack_api_settings');; if (!empty($ep_api_settings['contact_form_email'])) { $email = $ep_api_settings['contact_form_email']; } if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] == 'POST' ) { if (!isset($_REQUEST['_wpnonce']) || !wp_verify_nonce( sanitize_key( wp_unslash( $_REQUEST['_wpnonce'] ) ), 'simpleContactForm')) { $result = esc_html__('Security check failed!', 'bdthemes-element-pack'); echo '<span class="bdt-text-warning">' . esc_html($result) . '</span>'; wp_die(); } $post_id = isset( $_REQUEST['page_id'] ) ? absint($_REQUEST['page_id']) : 0; $widget_id = isset( $_REQUEST['widget_id'] ) ? $_REQUEST['widget_id'] : 0; $error = false; // this part fetches everything that has been POSTed, sanitizes them and lets us use them as $form_data['subject'] foreach ($_POST as $field => $value) { if (is_email($value)) { $value = sanitize_email($value); } elseif (in_array($field, ['name', 'subject', 'contact'])) { // Use sanitize_text_field for single-line fields to prevent header injection $value = sanitize_text_field($value); } else { $value = sanitize_textarea_field($value); } $form_data[$field] = strip_tags($value); } // Get widget settings to check if contact number is required $widget_settings = $this->get_widget_settings($post_id, $widget_id); $contact_required = isset($widget_settings['contact_number_required']) && $widget_settings['contact_number_required'] === 'yes'; foreach ($form_data as $key => $value) { $value = trim($value); // Skip validation for contact field if it's optional and empty if ($key === 'contact' && !$contact_required && empty($value)) { continue; } if (empty($value)) { $error = true; $result = $error_empty; } } // Success message part if (!empty($_POST['custom_success_message'])) { $custom_message = sanitize_text_field( wp_unslash( $_POST['custom_success_message'] ) ); $placeholders = ['[name]', '[email]']; $replacements = [esc_html($form_data['name']), esc_html($form_data['email'])]; $custom_message = str_replace($placeholders, $replacements, $custom_message); $success = (strlen($custom_message) <= 255) ? $custom_message : esc_html__('Invalid length of custom success message.', 'bdthemes-element-pack'); } else { $success = sprintf( esc_html__('Hi, %s. We got your e-mail. We\'ll reply to you very soon. Thanks for being with us...', 'bdthemes-element-pack'), esc_html($form_data['name']) ); } // and if the e-mail is not valid, switch $error to TRUE and set the result text to the shortcode attribute named 'error_noemail' if (!is_email($form_data['email'])) { $error = true; $result = $error_noemail; } /** * Stop spamming */ if (!$error) { $admin_email = get_option('admin_email'); if ( $this->are_emails_same( wp_kses_post( trim( $form_data['email'] ) ), $admin_email ) || $admin_email == wp_kses_post(trim($form_data['email'])) || $email == wp_kses_post(trim($form_data['email']))) { $error = true; $result = $error_same_as_admin; } else { if (isset($api_settings['contact_form_spam_email'])) { $spam_email_list = $api_settings['contact_form_spam_email']; $final_spam_list = explode(',', $spam_email_list); foreach ($final_spam_list as $spam_email) { if (trim($form_data['email']) == trim($spam_email)) { $error = true; $result = $error_spam_email; break; } } } } } /** Recaptcha*/ $result_recaptcha = $this->get_widget_settings($post_id, $widget_id); if (isset($result_recaptcha['show_recaptcha']) && $result_recaptcha['show_recaptcha'] == 'yes') { if (!empty($ep_api_settings['recaptcha_site_key']) and !empty($ep_api_settings['recaptcha_secret_key'])) { if (!$this->is_valid_captcha()) { $error = true; $result = esc_html__("reCAPTCHA is invalid!", "bdthemes-element-pack"); } } else { $error = true; $result = esc_html__("reCAPTCHA API keys are not set properly! Go to the Element Pack API settings page to configure them.", "bdthemes-element-pack"); } } $contact_number = isset($form_data['contact']) ? esc_attr($form_data['contact']) : ''; $contact_subject = isset($form_data['subject']) ? esc_attr($form_data['subject']) : ''; // but if $error is still FALSE, put together the POSTed variables and send the e-mail! if ($error == false) { // get the website's name and puts it in front of the subject $email_subject = "[" . get_bloginfo('name') . "] " . $contact_subject; // get the message from the form and add the IP address of the user below it $email_message = $this->message_html($form_data['message'], $form_data['name'], $form_data['email'], $contact_number); // set the e-mail headers with the user's name, e-mail address and character encoding // Explicitly remove newlines to prevent header injection $safe_name = str_replace(["\r", "\n"], '', $form_data['name']); $headers = "Reply-To: " . $safe_name . " <" . $form_data['email'] . ">\n"; $headers .= "Content-Type: text/html; charset=UTF-8\n"; $headers .= "Content-Transfer-Encoding: 8bit\n"; // send the e-mail with the shortcode attribute named 'email' and the POSTed data wp_mail($email, html_entity_decode($email_subject), $email_message, $headers); // and set the result text to the shortcode attribute named 'success' $result = $success; // ...and switch the $sent variable to TRUE $sent = true; } $redirect_url = (isset($form_data['redirect-url']) && !empty($form_data['redirect-url'])) ? esc_url($form_data['redirect-url']) : 'no'; $is_external = (isset($form_data['is-external']) && !empty($form_data['is-external'])) ? esc_attr($form_data['is-external']) : 'no'; $reset_status = (isset($form_data['reset-after-submit']) && ($form_data['reset-after-submit'] == 'yes')) ? 'yes' : 'no'; if ($error == false) { echo '<span class="bdt-text-success" data-resetstatus="' . esc_html($reset_status) . '" data-redirect="' . wp_kses_post($redirect_url) . '" data-external="' . esc_attr($is_external) . '">' . esc_html($result) . '</span>'; // wp_redirect( $form_data['redirect_url'] ); } else { echo '<span class="bdt-text-warning">' . esc_html($result) . '</span>'; } } die; } public function message_html($message, $name, $email, $number = '') { $fullmsg = "<html lang='en-US'><body style='background-color: #f5f5f5; padding: 35px;'>"; $fullmsg .= "<div style='max-width: 768px; margin: 0 auto; background-color: #fff; padding: 50px 35px;'>"; $fullmsg .= nl2br($message); $fullmsg .= "<br><br>"; $fullmsg .= "<b>" . esc_html($name) . "<b><br>"; $fullmsg .= esc_html($email) . "<br>"; $fullmsg .= ($number) ? esc_html($number) . "<br>" : ""; $fullmsg .= "<em>IP: " . Utils::get_client_ip() . "</em>"; $fullmsg .= "</div>"; $fullmsg .= "</body></html>"; return $fullmsg; } public function __construct() { parent::__construct(); add_action('wp_ajax_element_pack_contact_form', [$this, 'contact_form']); add_action('wp_ajax_nopriv_element_pack_contact_form', [$this, 'contact_form']); } }
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