56 lines
1.6 KiB
PHP
56 lines
1.6 KiB
PHP
<?php
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namespace MailPoet\Subscription;
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use MailPoet\Models\SubscriberIP;
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use MailPoet\Util\Helpers;
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use MailPoet\WP\Hooks;
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class Throttling {
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static function throttle() {
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$subscription_limit_enabled = Hooks::applyFilters('mailpoet_subscription_limit_enabled', true);
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$subscription_limit_window = Hooks::applyFilters('mailpoet_subscription_limit_window', DAY_IN_SECONDS);
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$subscription_limit_base = Hooks::applyFilters('mailpoet_subscription_limit_base', MINUTE_IN_SECONDS);
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$subscriber_ip = Helpers::getIP();
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if($subscription_limit_enabled && !is_user_logged_in()) {
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if(!empty($subscriber_ip)) {
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$subscription_count = SubscriberIP::where('ip', $subscriber_ip)
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->whereRaw(
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'(`created_at` >= NOW() - INTERVAL ? SECOND)',
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array((int)$subscription_limit_window)
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)->count();
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if($subscription_count > 0) {
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$timeout = $subscription_limit_base * pow(2, $subscription_count - 1);
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$existing_user = SubscriberIP::where('ip', $subscriber_ip)
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->whereRaw(
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'(`created_at` >= NOW() - INTERVAL ? SECOND)',
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array((int)$timeout)
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)->findOne();
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if(!empty($existing_user)) {
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return $timeout;
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}
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}
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}
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}
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$ip = SubscriberIP::create();
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$ip->ip = $subscriber_ip;
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$ip->save();
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self::purge($subscription_limit_window);
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return false;
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}
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static function purge($interval) {
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return SubscriberIP::whereRaw(
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'(`created_at` < NOW() - INTERVAL ? SECOND)',
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array($interval)
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)->deleteMany();
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}
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}
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