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<?php |
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namespace App\Middlewares; |
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use Nymfonya\Component\Container; |
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use Nymfonya\Component\Http\Interfaces\MiddlewareInterface; |
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use Nymfonya\Component\Http\Request; |
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use App\Component\Jwt\Token; |
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use App\Model\Users; |
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/** |
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* App\Middleware\Jwt |
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* |
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* Intercept jwt header and auth if required |
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*/ |
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class Jwt implements MiddlewareInterface |
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{ |
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use \App\Middlewares\Reuse\TInit; |
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const _SIGN = 'X-Middleware-Jwt'; |
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const _PASSWORD = 'password'; |
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const _EMAIL = 'email'; |
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const _USER_STATUS = 'status'; |
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const _VALID = 'valid'; |
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const _AUTORIZATION = 'Authorization'; |
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const _ERROR = 'error'; |
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const _ERROR_MESSAGE = 'errorMessage'; |
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/** |
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* peel |
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* |
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* @param array $container |
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* @param \Closure $next |
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* @return \Closure |
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*/ |
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public function peel(Container $container, \Closure $next) |
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{ |
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$this->init($container); |
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$this->process(); |
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return $next($container); |
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} |
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/** |
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* process |
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* |
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*/ |
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protected function process() |
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{ |
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if ($this->enabled) { |
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$this->response->getHeaderManager()->add( |
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self::_SIGN, |
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microtime(true) |
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); |
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if ($this->required()) { |
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if ($this->isValidAuthorization()) { |
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$toolJwtToken = new Token($this->config, $this->request); |
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try { |
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$tFrags = explode(' ', $this->headers[self::_AUTORIZATION]); |
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$decodedToken = $toolJwtToken->decode(trim($tFrags[1])); |
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if (isset($decodedToken->{Token::_DATA}->{Token::_DATA_ID})) { |
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$userId = $decodedToken->{Token::_DATA}->{Token::_DATA_ID}; |
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$user = $this->getUser($userId); |
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if (!empty($user)) { |
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if ($this->isValidCredential($decodedToken, $user)) { |
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$this->request->setSession('auth', $user, 'user'); |
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} else { |
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$this->sendError(403, 'bad credentials'); |
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} |
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} else { |
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$this->sendError(403, 'bad user'); |
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} |
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} |
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} catch (\Exception $e) { |
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$this->sendError(500, $e->getMessage()); |
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} |
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} else { |
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$this->sendError(403, 'Token required'); |
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} |
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} |
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} |
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} |
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/** |
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* send response and die |
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* |
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* @param integer $errorCode |
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* @return void |
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*/ |
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protected function sendError(int $errorCode, string $errMsg) |
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{ |
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$errorMsg = [ |
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self::_ERROR => true, |
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self::_ERROR_MESSAGE => 'Auth failed : ' . $errMsg |
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]; |
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$this->response |
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->setCode($errorCode) |
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->setContent($errorMsg) |
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->send(); |
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if (false === $this->request->isCli()) { |
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$this->kernel->shutdown(); |
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} |
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} |
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/** |
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* isPreflight |
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* |
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* @return bool |
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*/ |
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protected function isPreflight(): bool |
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{ |
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$isOptionsMethod = ($this->request->getMethod() == Request::METHOD_OPTIONS); |
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1 |
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$corsHeadersKeys = array_keys($this->headers); |
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1 |
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$hasOrigin = in_array('Origin', $corsHeadersKeys); |
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$hasACRequestMethod = in_array( |
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'Access-Control-Request-Method', |
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$corsHeadersKeys |
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); |
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return ($isOptionsMethod && $hasOrigin && $hasACRequestMethod); |
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} |
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/** |
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* isValidCredential |
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* |
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* @param object $decodedToken |
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* @param array $user |
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* @return boolean |
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*/ |
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protected function isValidCredential($decodedToken, $user): bool |
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{ |
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$login = $decodedToken->{Token::_DATA}->{Token::_DATA_LOGIN}; |
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$passwordHash = $decodedToken->{Token::_DATA}->{Token::_DATA_PASSWORD_HASH}; |
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$checkLogin = ($login === $user[self::_EMAIL]); |
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$checkPassword = password_verify($user[self::_PASSWORD], $passwordHash); |
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$checkStatus = ($user[self::_USER_STATUS] === self::_VALID); |
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return ($checkLogin && $checkPassword && $checkStatus); |
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} |
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/** |
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* getUser |
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* |
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* @param int $userId |
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* @return array |
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*/ |
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protected function getUser(int $userId): array |
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{ |
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$authModel = new Users($this->config); |
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$userList = $authModel->getById($userId); |
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return isset($userList[0]) ? $userList[0] : $userList; |
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} |
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/** |
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* isValidAuthorization |
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* |
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* @return boolean |
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*/ |
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protected function isValidAuthorization(): bool |
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{ |
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return (isset($this->headers[self::_AUTORIZATION]) |
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&& !empty($this->headers[self::_AUTORIZATION])); |
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} |
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/** |
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* required |
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* |
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* @return boolean |
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*/ |
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1 |
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protected function required(): bool |
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{ |
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1 |
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if ($this->request->isCli() |
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&& $this->request->getMethod() === Request::METHOD_TRACE |
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) { |
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return false; |
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} |
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return (!$this->isExclude() |
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&& $this->requestUriPrefix() === $this->prefix |
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&& !$this->isPreflight()); |
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} |
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/** |
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* isExclude |
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* |
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* @return boolean |
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*/ |
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1 |
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protected function isExclude(): bool |
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{ |
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1 |
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$disallowed = $this->configParams[self::_EXCLUDE]; |
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1 |
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$count = count($disallowed); |
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1 |
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for ($c = 0; $c < $count; ++$c) { |
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$composed = $this->prefix . $disallowed[$c]; |
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$isExclude = ($composed == $this->request->getUri()); |
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1 |
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if ($isExclude) { |
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return true; |
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} |
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} |
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1 |
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return false; |
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} |
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/** |
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* uriPrefix |
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* |
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* @return string |
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*/ |
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1 |
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protected function requestUriPrefix(): string |
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{ |
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return substr($this->request->getUri(), 0, strlen($this->prefix)); |
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} |
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} |
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pierre-fromager /
nymfonya
