checkbox_name = '_mc4wp_subscribe' . '_' . $this->type; } /** * Get the checkbox options * * @return array */ public function get_options() { if( $this->options === null ) { $this->options = mc4wp_get_options( 'checkbox' ); } return $this->options; } /** * Is this a spam request? * * @return bool */ protected function is_spam() { // check if honeypot was filled if( $this->is_honeypot_filled() ) { return true; } // check user agent $user_agent = substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 ); if( strlen( $user_agent ) < 2 ) { return true; } /** * @filter `mc4wp_is_spam` * @expects boolean True if this is a spam request * @default false */ return apply_filters( 'mc4wp_is_spam', false ); } /** * Was the honeypot filled? * * @return bool */ protected function is_honeypot_filled() { // Check if honeypot was filled (by spam bots) if( isset( $_POST['_mc4wp_required_but_not_really'] ) && ! empty( $_POST['_mc4wp_required_but_not_really'] ) ) { return true; } return false; } /** * Should the checkbox be pre-checked? * * @return bool */ public function is_prechecked() { $opts = $this->get_options(); return (bool) $opts['precheck']; } /** * Get the text for the label element * * @return string */ public function get_label_text() { $opts = $this->get_options(); // Get general label text $label = $opts['label']; // Override label text if a specific text for this integration is set if ( isset( $opts['text_' . $this->type . '_label'] ) && ! empty( $opts['text_' . $this->type . '_label'] ) ) { // custom label text was set $label = $opts['text_' . $this->type . '_label']; } // replace label variables $label = mc4wp_replace_variables( $label, $opts['lists'] ); return $label; } /** * @return bool */ public function checkbox_was_checked() { return ( isset( $_POST[ $this->checkbox_name ] ) && $_POST[ $this->checkbox_name ] == 1 ); } /** * Outputs a checkbox */ public function output_checkbox() { echo $this->get_checkbox(); } /** * @param mixed $args Array or string * @return string */ public function get_checkbox( $args = array() ) { $checked = ( $this->is_prechecked() ) ? 'checked ' : ''; // set label text if ( isset( $args['labels'][0] ) ) { // cf 7 shortcode $label = $args['labels'][0]; } else { $label = $this->get_label_text(); } // CF7 checkbox? if( is_array( $args ) && isset( $args['options'] ) ) { // check for default:0 or default:1 to set the checked attribute if( in_array( 'default:1', $args['options'] ) ) { $checked = 'checked'; } else if( in_array( 'default:0', $args['options'] ) ) { $checked = ''; } } $content = ""; do_action( 'mc4wp_before_checkbox' ); // checkbox $content .= '

'; $content .= ''; $content .= '

'; // honeypot $content .= ''; do_action( 'mc4wp_after_checkbox' ); return $content; } /** * @return array */ protected function get_lists() { // get checkbox lists options $opts = $this->get_options(); $lists = $opts['lists']; // get lists from form, if set. if( isset( $_POST['_mc4wp_lists'] ) && ! empty( $_POST['_mc4wp_lists'] ) ) { $lists = $_POST['_mc4wp_lists']; // make sure lists is an array if( ! is_array( $lists ) ) { // sanitize value $lists = sanitize_text_field( $lists ); $lists = array( $lists ); } } // allow plugins to filter final $lists = apply_filters( 'mc4wp_lists', $lists ); return $lists; } /** * Makes a subscription request * * @param string $email * @param array $merge_vars * @param string $signup_type * @param int $comment_id * @return string|boolean */ protected function subscribe( $email, array $merge_vars = array(), $signup_type = 'comment', $comment_id = null ) { $api = mc4wp_get_api(); $opts = $this->get_options(); $lists = $this->get_lists(); if( empty( $lists) ) { // show helpful error message to admins, but only if not using ajax if( $this->show_error_messages() ) { wp_die('

MailChimp for WP - Error

Please select a list to subscribe to in the checkbox settings.

This message is only visible to administrators for debugging purposes.

', 'Error - MailChimp for WP', array( 'back_link' => true ) ); } return 'no_lists_selected'; } // maybe guess first and last name if ( isset( $merge_vars['NAME'] ) && !isset( $merge_vars['FNAME'] ) && !isset( $merge_vars['LNAME'] ) ) { $strpos = strpos( $merge_vars['NAME'], ' ' ); if ( $strpos !== false ) { $merge_vars['FNAME'] = substr( $merge_vars['NAME'], 0, $strpos ); $merge_vars['LNAME'] = substr( $merge_vars['NAME'], $strpos ); } else { $merge_vars['FNAME'] = $merge_vars['NAME']; } } // set ip address if( ! isset( $merge_vars['OPTIN_IP'] ) && isset( $_SERVER['REMOTE_ADDR'] ) ) { $merge_vars['OPTIN_IP'] = sanitize_text_field( $_SERVER['REMOTE_ADDR'] ); } $result = false; /** * @filter `mc4wp_merge_vars` * @expects array * @param array $merge_vars * @param string $signup_type * * Use this to filter the final merge vars before the request is sent to MailChimp */ $merge_vars = apply_filters( 'mc4wp_merge_vars', $merge_vars, $signup_type ); /** * @filter `mc4wp_merge_vars` * @expects string * @param string $email_type * * Use this to change the email type this users should receive */ $email_type = apply_filters( 'mc4wp_email_type', 'html' ); /** * @action `mc4wp_before_subscribe` * @param string $email * @param array $merge_vars * * Runs before the request is sent to MailChimp */ do_action( 'mc4wp_before_subscribe', $email, $merge_vars ); foreach( $lists as $list_id ) { $result = $api->subscribe( $list_id, $email, $merge_vars, $email_type, $opts['double_optin'], $opts['update_existing'], true, $opts['send_welcome'] ); } /** * @action `mc4wp_after_subscribe` * @param string $email * @param array $merge_vars * @param boolean $result * * Runs after the request is sent to MailChimp */ do_action( 'mc4wp_after_subscribe', $email, $merge_vars, $result ); if ( $result === true ) { // TODO: Remove this $from_url = ( isset( $_SERVER['HTTP_REFERER'] ) ) ? sanitize_text_field( $_SERVER['HTTP_REFERER'] ) : ''; do_action( 'mc4wp_subscribe_checkbox', $email, $lists, $signup_type, $merge_vars, $comment_id, $from_url ); } // if result failed, show error message (only to admins for non-AJAX) if ( $result !== true && $api->has_error() && $this->show_error_messages() ) { wp_die( "

MailChimp for WP - Error

The MailChimp server returned the following error message as a response to our sign-up request:

" . $api->get_error_message() . "

This is the data that was sent to MailChimp:

Email 
{$email}
Merge variables 
" . print_r( $merge_vars, true ) . "

This message is only visible to administrators for debugging purposes.

", "Error - MailChimp for WP", array( 'back_link' => true ) ); } return $result; } /** * Should we show error messages? * - Not for AJAX requests * - Not for non-admins * - Not for CF7 requests (which uses a different AJAX mechanism) * * @return bool */ protected function show_error_messages() { return ( ! defined( 'DOING_AJAX' ) || ! DOING_AJAX ) && ( ! isset( $_POST['_wpcf7_is_ajax_call'] ) || $_POST['_wpcf7_is_ajax_call'] != 1 ) && current_user_can( 'manage_options' ); } }