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<?php |
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namespace Tequilarapido\RestrictAccess\Restricter; |
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use Symfony\Component\HttpFoundation\Response; |
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class BasicAuthRestricter extends Restricter |
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{ |
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/** |
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* Do we need to restric. |
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*/ |
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public function isRestrictionEnabled() |
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{ |
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return config('restrict_access.by_basic_auth.enabled'); |
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} |
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/** |
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* Protection method. |
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* |
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* @return Response|bool |
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*/ |
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public function restrict() |
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{ |
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if (! $this->isRestrictionEnabled()) { |
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return false; |
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} |
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if (! $this->attempt()) { |
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return $this->getBasicAuthenticationResponse(); |
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} |
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return false; |
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} |
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/** |
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* Attempt login. |
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* |
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* @return bool |
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* |
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* @throws \Exception |
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*/ |
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protected function attempt() |
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{ |
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$username = config('restrict_access.by_basic_auth.username'); |
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$password = config('restrict_access.by_basic_auth.password'); |
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if (empty($username) || empty($password)) { |
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throw new \Exception('restrict_access.by_basic_auth username and password are required'); |
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} |
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$this->ensurePhpFpmCompatibility(); |
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return $username === $this->request->getUser() && $password === $this->request->getPassword(); |
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} |
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/** |
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* Returns www-authenticate header. |
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* |
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* @return Response |
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*/ |
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protected function getBasicAuthenticationResponse() |
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{ |
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$headers = ['WWW-Authenticate' => 'Basic realm="Authentication System"']; |
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return new Response('Invalid credentials.', 401, $headers); |
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} |
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/** |
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* PHP FPM / FastCGI Compatibility |
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* use custom headers. |
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*/ |
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protected function ensurePhpFpmCompatibility() |
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{ |
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$this->tryToSetAuthPHPFrom('Authorization'); |
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$this->tryToSetAuthPHPFrom('REDIRECT_HTTP_AUTHORIZATION'); |
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} |
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/** |
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* Set headers. |
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* |
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* @param $header |
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*/ |
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protected function tryToSetAuthPHPFrom($header) |
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{ |
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if ( |
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! empty($_SERVER[$header]) |
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&& preg_match('/Basic\s+(.*)$/i', $_SERVER[$header], $auth_matches) |
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) { |
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$auth_items = isset($auth_matches[1]) ? explode(':', base64_decode($auth_matches[1])) : []; |
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if (isset($auth_items[0]) && isset($auth_items[1])) { |
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$_SERVER['PHP_AUTH_USER'] = strip_tags($auth_items[0]); |
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$_SERVER['PHP_AUTH_PW'] = strip_tags($auth_items[1]); |
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} |
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} |
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} |
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} |
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tequilarapido /
restrict-access
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: