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<?php |
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namespace Aoe\FeloginBruteforceProtection\Domain\Service; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2019 AOE GmbH <[email protected]> |
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* |
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* All rights reserved |
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* |
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* This script is part of the TYPO3 project. The TYPO3 project is |
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* free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* The GNU General Public License can be found at |
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* http://www.gnu.org/copyleft/gpl.html. |
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* |
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* This script 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 General Public License for more details. |
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* |
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* This copyright notice MUST APPEAR in all copies of the script! |
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***************************************************************/ |
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use Aoe\FeloginBruteforceProtection\System\Configuration; |
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use Aoe\FeloginBruteforceProtection\Utility\CIDRUtility; |
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/** |
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* @package Aoe\FeloginBruteforceProtection\Domain\Service |
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* @author Patrick Roos <[email protected]> |
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*/ |
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class RestrictionIdentifierClientIp extends RestrictionIdentifierAbstract |
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{ |
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/** |
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* @var Configuration |
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*/ |
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protected $configuration; |
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/** |
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* the value of the restriction identifier |
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* @return string |
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*/ |
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public function getIdentifierValue() |
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{ |
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if (!isset($this->identifierValue)) { |
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if ($this->configuration->getXForwardedFor() && isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { |
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$this->identifierValue = $_SERVER['HTTP_X_FORWARDED_FOR']; |
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} else { |
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$this->identifierValue = $_SERVER['REMOTE_ADDR']; |
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} |
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} |
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return $this->identifierValue; |
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} |
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/** |
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* when IP is excluded no restriction check is necessary |
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* @return boolean |
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*/ |
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public function checkPreconditions() |
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{ |
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return !$this->isIpExcluded(); |
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} |
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/** |
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* checks if the IP is excluded for restriction |
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* @return boolean |
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*/ |
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protected function isIpExcluded() |
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{ |
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if (in_array($this->getIdentifierValue(), $this->configuration->getExcludedIps())) { |
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return true; |
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} |
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foreach ($this->configuration->getExcludedIps() as $excludedIp) { |
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// CIDR notation is used within excluded IPs |
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if (CIDRUtility::isCIDR($excludedIp)) { |
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if (CIDRUtility::matchCIDR($this->getIdentifierValue(), $excludedIp)) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* @param Configuration $configuration |
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* @return void |
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**/ |
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public function setConfiguration(Configuration $configuration) |
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{ |
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$this->configuration = $configuration; |
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} |
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} |
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