1 files changed, 60 insertions, 0 deletions
diff --git a/Core/Authentication/Provider/AnonymousAuthenticationProvider.php b/Core/Authentication/Provider/AnonymousAuthenticationProvider.php
new file mode 100644
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--- /dev/null
+++ b/Core/Authentication/Provider/AnonymousAuthenticationProvider.php
@@ -0,0 +1,60 @@
+<?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\Exception\BadCredentialsException;
+use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
+
+/**
+ * AnonymousAuthenticationProvider validates AnonymousToken instances.
+ *
+ * @author Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class AnonymousAuthenticationProvider implements AuthenticationProviderInterface
+{
+    protected $key;
+
+    /**
+     * Constructor.
+     *
+     * @param string $key The key shared with the authentication token
+     */
+    public function __construct($key)
+    {
+        $this->key = $key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function authenticate(TokenInterface $token)
+    {
+        if (!$this->supports($token)) {
+            return null;
+        }
+
+        if ($this->key != $token->getKey()) {
+            throw new BadCredentialsException('The Token does not contain the expected key.');
+        }
+
+        return $token;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supports(TokenInterface $token)
+    {
+        return $token instanceof AnonymousToken;
+    }
+}