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e32f6f80b9
Moved the ratelimits per form down to usually 2 per hour. Added a global ratelimit of 20 requests per hour. Signed-off-by: Lukas Reschke <lukas@statuscode.ch>
58 lines
1.8 KiB
PHP
58 lines
1.8 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2021 Lukas Reschke <lukas@statuscode.ch>
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*
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* @author Lukas Reschke <lukas@statuscode.ch>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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function canPerformLimitedAction($ratelimitName, $maxRequestsPerHour) : bool {
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require_once realpath(dirname(__FILE__)) . '/../config.php';
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if(!defined("REDIS")) {
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return true;
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}
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$userIp = $_SERVER['REMOTE_ADDR'];
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$redis = new Predis\Client(REDIS);
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$rateId = "requests_count_ratelimiter_{$ratelimitName}_{$userIp}";
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$rateLimit = (int) $redis->get($rateId);
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$globalRateId = "requests_count_ratelimiter_{$userIp}";
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$globalRateLimit = (int) $redis->get($globalRateId);
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$redis->set($globalRateId, $globalRateLimit + 1);
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$redis->expire($globalRateId, 3600);
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$globalRateLimitMaximumPerHour = 20;
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if ($globalRateLimit + 1 > $globalRateLimitMaximumPerHour) {
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return false;
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}
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$redis->set($rateId, $rateLimit + 1);
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$redis->expire($rateId, 3600);
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if ($rateLimit + 1 > $maxRequestsPerHour) {
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return false;
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} else {
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return true;
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}
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}
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