1 files changed, 95 insertions, 0 deletions
diff --git a/Core/Authentication/Provider/DaoAuthenticationProvider.php b/Core/Authentication/Provider/DaoAuthenticationProvider.php
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+++ b/Core/Authentication/Provider/DaoAuthenticationProvider.php
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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Core\Authentication\Provider;
+
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface;
+use Symfony\Component\Security\Core\User\UserProviderInterface;
+use Symfony\Component\Security\Core\User\AccountCheckerInterface;
+use Symfony\Component\Security\Core\User\AccountInterface;
+use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
+use Symfony\Component\Security\Core\Exception\AuthenticationServiceException;
+use Symfony\Component\Security\Core\Exception\BadCredentialsException;
+use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
+
+/**
+ * DaoAuthenticationProvider uses a UserProviderInterface to retrieve the user
+ * for a UsernamePasswordToken.
+ *
+ * @author Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class DaoAuthenticationProvider extends UserAuthenticationProvider
+{
+    protected $encoderFactory;
+    protected $userProvider;
+
+    /**
+     * Constructor.
+     *
+     * @param UserProviderInterface    $userProvider    A UserProviderInterface instance
+     * @param AccountCheckerInterface  $accountChecker  An AccountCheckerInterface instance
+     * @param EncoderFactoryInterface  $encoderFactory  A EncoderFactoryInterface instance
+     */
+    public function __construct(UserProviderInterface $userProvider, AccountCheckerInterface $accountChecker, $providerKey, EncoderFactoryInterface $encoderFactory, $hideUserNotFoundExceptions = true)
+    {
+        parent::__construct($accountChecker, $providerKey, $hideUserNotFoundExceptions);
+
+        $this->encoderFactory = $encoderFactory;
+        $this->userProvider = $userProvider;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function checkAuthentication(AccountInterface $account, UsernamePasswordToken $token)
+    {
+        $user = $token->getUser();
+        if ($user instanceof AccountInterface) {
+            if ($account->getPassword() !== $user->getPassword()) {
+                throw new BadCredentialsException('The credentials were changed from another session.');
+            }
+        } else {
+            if (!$presentedPassword = (string) $token->getCredentials()) {
+                throw new BadCredentialsException('Bad credentials');
+            }
+
+            if (!$this->encoderFactory->getEncoder($account)->isPasswordValid($account->getPassword(), $presentedPassword, $account->getSalt())) {
+                throw new BadCredentialsException('Bad credentials');
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function retrieveUser($username, UsernamePasswordToken $token)
+    {
+        $user = $token->getUser();
+        if ($user instanceof AccountInterface) {
+            return $user;
+        }
+
+        try {
+            $user = $this->userProvider->loadUserByUsername($username);
+
+            if (!$user instanceof AccountInterface) {
+                throw new AuthenticationServiceException('The user provider must return an AccountInterface object.');
+            }
+
+            return $user;
+        } catch (UsernameNotFoundException $notFound) {
+            throw $notFound;
+        } catch (\Exception $repositoryProblem) {
+            throw new AuthenticationServiceException($repositoryProblem->getMessage(), $token, 0, $repositoryProblem);
+        }
+    }
+}