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| Original file line number | Diff line number | Diff line change |
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@@ -18,3 +18,4 @@ var | |
| dynamicReturnTypeMeta.json | ||
| /Documentation-GENERATED-temp/ | ||
| docker-compose.yml | ||
| .php_cs.cache | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace In2code\Femanager\Domain\Service; | ||
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| use TYPO3\CMS\Core\Cache\CacheManager; | ||
| use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface; | ||
| use TYPO3\CMS\Core\Crypto\Random; | ||
| use TYPO3\CMS\Core\SingletonInterface; | ||
| use TYPO3\CMS\Core\Utility\GeneralUtility; | ||
| use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController; | ||
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| class RatelimiterService implements SingletonInterface | ||
| { | ||
| const CACHE_IDENTIFIER = 'femanager_ratelimiter'; | ||
| const DEFAULT_CONFIG = ['timeframe' => 60, 'limit' => 3]; | ||
| const LIMIT_IP = 'limit_ip_'; | ||
| const SESSION_KEY = 'tx_femanager_ratelimiter'; | ||
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| /** @var FrontendInterface */ | ||
| protected $cache; | ||
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| /** @var int */ | ||
| protected $limit; | ||
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| /** @var int */ | ||
| protected $timeframe; | ||
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| public function __construct() | ||
| { | ||
| $this->cache = GeneralUtility::makeInstance(CacheManager::class)->getCache(self::CACHE_IDENTIFIER); | ||
| $setup = $this->getTSFE()->tmpl->setup; | ||
| $config = $setup['plugin.']['tx_femanager.']['settings.']['ratelimiter.'] ?? self::DEFAULT_CONFIG; | ||
| $this->timeframe = (int)$config['timeframe']; | ||
| $this->limit = (int)$config['limit']; | ||
| } | ||
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| protected function getTSFE(): TypoScriptFrontendController | ||
| { | ||
| return $GLOBALS['TSFE']; | ||
| } | ||
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| public function isLimited(): bool | ||
| { | ||
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| if ($this->limit > 0) { | ||
| $userIp = GeneralUtility::getIndpEnv('REMOTE_ADDR'); | ||
| $userIpAccess = $this->getToken(self::LIMIT_IP, $userIp); | ||
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| return count($userIpAccess) >= $this->limit; | ||
| } | ||
| return false; | ||
| } | ||
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| public function consumeSlot() | ||
| { | ||
| if ($this->limit > 0) { | ||
| $userIp = GeneralUtility::getIndpEnv('REMOTE_ADDR'); | ||
| $this->consumeToken(self::LIMIT_IP, $userIp); | ||
| } | ||
| } | ||
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| protected function getCookie() | ||
| { | ||
| $this->touchCookie(); | ||
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| return $this->getTSFE()->fe_user->getSessionData(self::SESSION_KEY); | ||
| } | ||
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| public function touchCookie() | ||
| { | ||
| $feUser = $this->getTSFE()->fe_user; | ||
| $identifier = $feUser->getSessionData(self::SESSION_KEY); | ||
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| if (null === $identifier) { | ||
| $unique = GeneralUtility::makeInstance(Random::class)->generateRandomHexString(16); | ||
| $feUser->setAndSaveSessionData(self::SESSION_KEY, $unique); | ||
| } | ||
| } | ||
|
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| protected function consumeToken(string $tokenName, string $value): array | ||
| { | ||
| $cacheID = $this->getCacheID($tokenName, $value); | ||
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| $token = $this->retrieveToken($cacheID); | ||
| $token[] = $GLOBALS['EXEC_TIME']; | ||
| $this->cache->set($cacheID, $token, [], $this->timeframe); | ||
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| return $token; | ||
| } | ||
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| protected function getCacheID(string $tokenName, string $value): string | ||
| { | ||
| return $tokenName.hash('sha1', $value); | ||
| } | ||
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| protected function retrieveToken(string $cacheID): array | ||
| { | ||
| $token = []; | ||
| if ($this->cache->has($cacheID)) { | ||
| $token = $this->cache->get($cacheID); | ||
| $token = $this->filterExpiredToken($token); | ||
| } | ||
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| return $token; | ||
| } | ||
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| protected function filterExpiredToken(array $token): array | ||
| { | ||
| $slidingWindowStartTime = $GLOBALS['EXEC_TIME'] - $this->timeframe; | ||
| foreach ($token as $idx => $accessTime) { | ||
| if ($accessTime < $slidingWindowStartTime) { | ||
| unset($token[$idx]); | ||
| } | ||
| } | ||
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| return $token; | ||
| } | ||
|
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| protected function getToken(string $tokenName, string $value): array | ||
| { | ||
| $cacheID = $this->getCacheID($tokenName, $value); | ||
|
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| return $this->retrieveToken($cacheID); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -6,5 +6,4 @@ | |
|
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| class InviteUserCreateEvent extends UserEvent | ||
| { | ||
|
|
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| } | ||
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