Skip to Content
Menu

spam_domain_prevention()

Prevent blacklisted domains from accessing the website.

PHP April 1, 2021

Usage

This function runs automatically, so it is not called manually. Is this incorrect?

Was this page helpful? Yes No


    A feedback message is required to submit this form.


    Please check that you have entered a valid email address.

    Enter your email address if you would like a response.

    Thank you for your feedback!

    Source File

    Located in /libs/Security.php on line 178.

    4 Hooks

    Find these filters and actions in the source code below to hook into them. Use do_action() and add_filter() in your functions file or plugin.

    Filters
    This function has no filter hooks available. Request one?

    Actions
    "nebula_spambot_prevention"
    "nebula_spambot_prevention"
    "nebula_spambot_prevention"
    "nebula_spambot_prevention"
    Need a new action hook? Request one here.

    PHP
            public function spam_domain_prevention(){
                $this->timer('Spam Domain Prevention');
    
                //Skip lookups if user has already been checked or for logged in users.
                if ( (isset($this->super->cookie['spam_domain']) && $this->super->cookie['spam_domain'] === false) || is_user_logged_in() ){
                    return false;
                }
    
                if ( $this->get_option('spam_domain_prevention') ){
                    $spam_domain_array = $this->get_spam_domain_list();
                    $ip_address = $this->get_ip_address();
    
                    if ( count($spam_domain_array) > 1 ){
                        if ( isset($this->super->server['HTTP_REFERER']) && $this->contains(strtolower($this->super->server['HTTP_REFERER']), $spam_domain_array) ){
                            $this->ga_send_exception('(Security) Spam domain prevented. Referrer: ' . $this->super->server['HTTP_REFERER'], 1, array('cd' . $this->ga_definition_index($this->get_option('cd_securitynote')) => 'Spam Referrer'));
                            do_action('nebula_spambot_prevention');
                            header('HTTP/1.1 403 Forbidden');
                            wp_die();
                        }
    
                        if ( isset($this->super->server['REMOTE_HOST']) && $this->contains(strtolower($this->super->server['REMOTE_HOST']), $spam_domain_array) ){
                            $this->ga_send_exception('(Security) Spam domain prevented. Hostname: ' . $this->super->server['REMOTE_HOST'], 1, array('cd' . $this->ga_definition_index($this->get_option('cd_securitynote')) => 'Spam Hostname'));
                            do_action('nebula_spambot_prevention');
                            header('HTTP/1.1 403 Forbidden');
                            wp_die();
                        }
    
                        if ( isset($this->super->server['SERVER_NAME']) && $this->contains(strtolower($this->super->server['SERVER_NAME']), $spam_domain_array) ){
                            $this->ga_send_exception('(Security) Spam domain prevented. Server Name: ' . $this->super->server['SERVER_NAME'], 1, array('cd' . $this->ga_definition_index($this->get_option('cd_securitynote')) => 'Spam Server Name'));
                            do_action('nebula_spambot_prevention');
                            header('HTTP/1.1 403 Forbidden');
                            wp_die();
                        }
    
                        if ( isset($ip_address) && $this->contains(strtolower(gethostbyaddr($ip_address)), $spam_domain_array) ){
                            $this->ga_send_exception('(Security) Spam domain prevented. Network Hostname: ' . $ip_address, 1, array('cd' . $this->ga_definition_index($this->get_option('cd_securitynote')) => 'Spam Network Hostname'));
                            do_action('nebula_spambot_prevention');
                            header('HTTP/1.1 403 Forbidden');
                            wp_die();
                        }
                    } else {
                        $this->ga_send_exception('(Security) spammers.txt has no entries!', 0);
                    }
    
                    $this->set_cookie('spam_domain', false);
                }
    
                $this->timer('Spam Domain Prevention', 'end');
            }
    

    Override

    This function can not be short-circuited with an override filter. Request one?