1 files changed, 120 insertions, 0 deletions
diff --git a/Core/Authentication/AuthenticationProviderManager.php b/Core/Authentication/AuthenticationProviderManager.php
new file mode 100644
index 0000000..187a81b
--- /dev/null
+++ b/Core/Authentication/AuthenticationProviderManager.php
@@ -0,0 +1,120 @@
+<?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;
+
+use Symfony\Component\Security\Core\Exception\AccountStatusException;
+use Symfony\Component\Security\Core\Exception\AuthenticationException;
+use Symfony\Component\Security\Core\Exception\ProviderNotFoundException;
+use Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+
+/**
+ * AuthenticationProviderManager uses a list of AuthenticationProviderInterface
+ * instances to authenticate a Token.
+ *
+ * @author Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class AuthenticationProviderManager implements AuthenticationManagerInterface
+{
+    protected $providers;
+    protected $eraseCredentials;
+
+    /**
+     * Constructor.
+     *
+     * @param AuthenticationProviderInterface[] $providers        An array of AuthenticationProviderInterface instances
+     * @param Boolean                           $eraseCredentials Whether to erase credentials after authentication or not
+     */
+    public function __construct(array $providers = array(), $eraseCredentials = true)
+    {
+        $this->setProviders($providers);
+        $this->eraseCredentials = (Boolean) $eraseCredentials;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function authenticate(TokenInterface $token)
+    {
+        if (!count($this->providers)) {
+            throw new \LogicException('You must add at least one provider.');
+        }
+
+        $lastException = null;
+        $result = null;
+
+        foreach ($this->providers as $provider) {
+            if (!$provider->supports($token)) {
+                continue;
+            }
+
+            try {
+                $result = $provider->authenticate($token);
+            } catch (AccountStatusException $e) {
+                $e->setExtraInformation($token);
+
+                throw $e;
+            } catch (AuthenticationException $e) {
+                $lastException = $e;
+            }
+        }
+
+        if (null !== $result) {
+            if (true === $this->eraseCredentials) {
+                $result->eraseCredentials();
+            }
+
+            return $result;
+        }
+
+        if (null === $lastException) {
+            $lastException = new ProviderNotFoundException(sprintf('No Authentication Provider found for token of class "%s".', get_class($token)));
+        }
+
+        $lastException->setExtraInformation($token);
+
+        throw $lastException;
+    }
+
+    /**
+     * Returns the list of current providers.
+     *
+     * @return AuthenticationProviderInterface[] An array of AuthenticationProviderInterface instances
+     */
+    public function all()
+    {
+        return $this->providers;
+    }
+
+    /**
+     * Sets the providers instances.
+     *
+     * @param AuthenticationProviderInterface[] $providers An array of AuthenticationProviderInterface instances
+     */
+    public function setProviders(array $providers)
+    {
+        $this->providers = array();
+        foreach ($providers as $provider) {
+            $this->add($provider);
+        }
+    }
+
+    /**
+     * Adds a provider.
+     *
+     * @param AuthenticationProviderInterface $provider A AuthenticationProviderInterface instance
+     */
+    public function add(AuthenticationProviderInterface $provider)
+    {
+        $this->providers[] = $provider;
+    }
+}