75 lines
2.4 KiB
PHP
75 lines
2.4 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpKernel\Security\EntryPoint;
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use Symfony\Component\Security\Exception\AuthenticationException;
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use Symfony\Component\Security\Authentication\EntryPoint\AuthenticationEntryPointInterface;
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use Symfony\Component\Security\Exception\NonceExpiredException;
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use Symfony\Component\HttpFoundation\Response;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpKernel\Log\LoggerInterface;
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/**
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* DigestAuthenticationEntryPoint starts an HTTP Digest authentication.
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*
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class DigestAuthenticationEntryPoint implements AuthenticationEntryPointInterface
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{
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protected $key;
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protected $realmName;
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protected $nonceValiditySeconds;
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protected $logger;
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public function __construct($realmName, $key, $nonceValiditySeconds = 300, LoggerInterface $logger = null)
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{
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$this->realmName = $realmName;
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$this->key = $key;
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$this->nonceValiditySeconds = $nonceValiditySeconds;
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$this->logger = $logger;
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}
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public function start(Request $request, AuthenticationException $authException = null)
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{
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$expiryTime = microtime(true) + $this->nonceValiditySeconds * 1000;
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$signatureValue = md5($expiryTime.':'.$this->key);
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$nonceValue = $expiryTime.':'.$signatureValue;
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$nonceValueBase64 = base64_encode($nonceValue);
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$authenticateHeader = sprintf('Digest realm="%s", qop="auth", nonce="%s"', $this->realmName, $nonceValueBase64);
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if ($authException instanceof NonceExpiredException) {
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$authenticateHeader = $authenticateHeader.', stale="true"';
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}
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if (null !== $this->logger) {
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$this->logger->debug(sprintf('WWW-Authenticate header sent to user agent: "%s"', $authenticateHeader));
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}
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$response = new Response();
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$response->headers->set('WWW-Authenticate', $authenticateHeader);
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$response->setStatusCode(401, $authException->getMessage());
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return $response;
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}
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public function getKey()
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{
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return $this->key;
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}
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public function getRealmName()
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{
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return $this->realmName;
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}
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}
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