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<?php |
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declare(strict_types=1); |
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/** |
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org) |
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) |
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* |
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* Licensed under The MIT License |
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* For full copyright and license information, please see the LICENSE.txt |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) |
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* @link http://cakephp.org CakePHP(tm) Project |
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* @license http://www.opensource.org/licenses/mit-license.php MIT License |
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*/ |
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namespace Phauthentic\Authentication\Authenticator; |
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use ArrayAccess; |
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use Phauthentic\Authentication\Authenticator\Exception\UnauthorizedException; |
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use Phauthentic\Authentication\Identifier\IdentifierInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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/** |
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* HttpBasic Authenticator |
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* |
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* Provides Basic HTTP authentication support. |
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*/ |
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class HttpBasicAuthenticator extends AbstractAuthenticator implements StatelessInterface |
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{ |
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use CredentialFieldsTrait; |
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/** |
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* Realm |
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* |
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* @var string|null |
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*/ |
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protected $realm; |
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/** |
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* Sets the realm |
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* |
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* @param string|null $realm Realm |
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* @return $this |
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*/ |
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public function setRealm(?string $realm): self |
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{ |
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$this->realm = $realm; |
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return $this; |
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} |
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/** |
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* Authenticate a user using HTTP auth. Will use the configured User model and attempt a |
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* login using HTTP auth. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request The request to authenticate with. |
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* @return \Phauthentic\Authentication\Authenticator\ResultInterface |
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*/ |
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public function authenticate(ServerRequestInterface $request): ResultInterface |
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{ |
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$user = $this->getUser($request); |
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if (empty($user)) { |
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return new Result(null, Result::FAILURE_CREDENTIALS_MISSING); |
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} |
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return new Result($user, Result::SUCCESS); |
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} |
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/** |
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* Checks for the user and password in the server request params |
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* |
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* @param array $serverParams Server params from \Psr\Http\Message\ServerRequestInterface::getServerParams() |
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* @return bool |
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*/ |
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protected function checkServerParams(array $serverParams): bool { |
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return !isset($serverParams['PHP_AUTH_USER']) |
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|| !isset($serverParams['PHP_AUTH_PW']) |
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|| !is_string($serverParams['PHP_AUTH_USER']) |
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|| $serverParams['PHP_AUTH_USER'] === '' |
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|| !is_string($serverParams['PHP_AUTH_PW']) |
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|| $serverParams['PHP_AUTH_PW'] === ''; |
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} |
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/** |
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* Get a user based on information in the request. Used by cookie-less auth for stateless clients. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request Request object. |
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* @return \ArrayAccess|null User entity or null on failure. |
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*/ |
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public function getUser(ServerRequestInterface $request): ?ArrayAccess |
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{ |
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$serverParams = $request->getServerParams(); |
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if ($this->checkServerParams($serverParams)) { |
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return null; |
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} |
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return $this->identifier->identify([ |
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IdentifierInterface::CREDENTIAL_USERNAME => $serverParams['PHP_AUTH_USER'], |
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IdentifierInterface::CREDENTIAL_PASSWORD => $serverParams['PHP_AUTH_PW'], |
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]); |
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} |
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/** |
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* Create a challenge exception for basic auth challenge. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request A request object. |
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* @return void |
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* @throws \Phauthentic\Authentication\Authenticator\Exception\UnauthorizedException |
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*/ |
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public function unauthorizedChallenge(ServerRequestInterface $request): void |
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{ |
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throw new UnauthorizedException($this->loginHeaders($request), ''); |
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} |
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/** |
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* Generate the login headers |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request Request object. |
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* @return array Headers for logging in. |
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*/ |
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protected function loginHeaders(ServerRequestInterface $request): array |
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{ |
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$server = $request->getServerParams(); |
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$realm = $this->realm ?: $server['SERVER_NAME']; |
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return ['WWW-Authenticate' => sprintf('Basic realm="%s"', $realm)]; |
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} |
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} |
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