Fix File

• /home/sportsfe.../httpdocs/wp-conte.../plugins/themify-.../includes/optin-se...

• File: mailchimp.php

• Content:

<?php

defined('ABSPATH') || exit;

class Builder_Optin_Service_MailChimp extends Builder_Optin_Service {

public static function get_id():string {
        return 'mailchimp';
    }

public static function get_label():string  {
        return __('MailChimp', 'themify');
    }

public static function get_settings():array {
        $lists = self::get_lists();
        if (is_array($lists)) {
            return array(
                array(
                    'id' => 'mailchimp_list',
                    'type' => 'select',
                    'label' => __('List', 'themify'),
                    'options' => $lists
                ),
                array(
                    'id' => 'mailchimp_db_opt',
                    'type' => 'toggle_switch',
                    'label' => __('Double opt-in', 'themify'),
                    'options' => array(
                        'on' => array('name' => 'on', 'value' => 'en'),
                        'off' => array('name' => '', 'value' => 'dis')
                    )
                )
            );
        } else {
            return array(
                array(
                    'type' => 'message',
                    'class' => 'tb_field_error_msg',
                    'comment' => $lists
                )
            );
        }
    }

public function get_options():array {//backward for fw 7.5
        return self::get_settings();
    }

public static function get_global_options():array {
        return array(
            array(
                'id' => 'mailchimp_key',
                'type' => 'text',
                'label' => __('MailChimp API Key', 'themify'),
                'description' => sprintf(__('<a href="%s" target="_blank">Get an API key</a>', 'themify'), 'https://admin.mailchimp.com/account/api/'),
            ),
        );
    }

private static function request($request, $method = 'GET', $args = array()) {
        $api_key = self::get_api_key();
        $api_key_pieces = explode('-', $api_key);
        $server = $api_key_pieces[1];
        $url = sprintf('https://%s.api.mailchimp.com/3.0/', $server);
        $url .= $request;
        $args+= array(
            'method' => $method,
            'headers' => array(
                'Authorization' => 'Basic ' . base64_encode('key:' . $api_key)
            ),
        );

$response = wp_remote_request($url, $args);
        if (is_wp_error($response)) {
            return $response;
        } else {
            return json_decode(wp_remote_retrieve_body($response), true);
        }
    }

protected static function request_list() {
        if (is_wp_error(( $data = self::request('lists')))) {
            return $data;
        }
        if (is_array($data) && isset($data['lists'])) {
            $list = array();
            foreach ($data['lists'] as $v) {
                $list[$v['id']] = $v['name'];
            }
            return $list;
        }

return new WP_Error('list_error', __('Error retrieving lists.', 'themify'));
    }

/**
     * Gets data from module and validates API key
     *
     * @return bool|WP_Error
     */
    public static function validate_data(array $fields_args):string {
        if (isset($fields_args['mailchimp_list'])) {
            $mc_lists = self::get_lists();
            if (is_string($mc_lists)) {
                return $mc_lists;
            }
            if (isset($mc_lists[$fields_args['mailchimp_list']])) {
                return '';
            }
            return __('Selected list not found.', 'themify');
        }
        else {
            return __('No list is selected.', 'themify');
        }
    }

/**
     * Subscribe action
     *
     * @doc https://developer.mailchimp.com/documentation/mailchimp/guides/manage-subscribers-with-the-mailchimp-api/#subscribe-an-address
     */
    public static function subscribe(array $args) {
        $response = self::request(sprintf('lists/%s/members', $args['mailchimp_list']), 'POST', array(
            'body' => json_encode(array(
                'email_address' => $args['email'],
                'status' => isset($args['mailchimp_db_opt']) && $args['mailchimp_db_opt'] === 'on' ? 'pending' : 'subscribed',
                'merge_fields' => array(
                    'FNAME' => $args['fname'],
                    'LNAME' => $args['lname']
                ),
            ))
        ));
        if (is_wp_error($response)) {
            return $response;
        } elseif (isset($response['status'])) {
            if ('pending' === $response['status'] || 'subscribed' === $response['status']
                /* this user is already subscribed, no need to show any errors */ || ( 400 === $response['status'] && $response['title'] === 'Member Exists' )
            ) {
                return true;
            } elseif (isset($response['errors'])) {
                return new WP_Error('error', $response['errors'][0]->message);
            }
        }
    }
}

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