Merge branch '2.8'

* 2.8: (29 commits)
  Updating AbstractVoter so that the method receives the TokenInterface
  Adding the necessary files so that Guard can be its own installable component
  Fix syntax in a test
  Normalize the way we check versions
  Avoid errors when generating the logout URL when there is no firewall key
  Removing unnecessary override
  fabbot
  Adding a new exception and throwing it when the User changes
  Fixing a bug where having an authentication failure would log you out.
  Tweaks thanks to Wouter
  Adding logging  on this step and switching the order - not for any huge reason
  Adding a base class to assist with form login authentication
  Allowing for other authenticators to be checked
  meaningless author and license changes
  Adding missing factory registration
  Thanks again fabbot!
  A few more changes thanks to @iltar
  Splitting the getting of the user and checking credentials into two steps
  Tweaking docblock on interface thanks to @iltar
  Adding periods at the end of exceptions, and changing one class name to LogicException thanks to @iltar
  ...

Conflicts:
	UPGRADE-2.8.md
	src/Symfony/Bridge/Twig/Tests/Node/DumpNodeTest.php
	src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php
	src/Symfony/Component/Validator/Tests/Constraints/AbstractComparisonValidatorTestCase.php
	src/Symfony/Component/Validator/Tests/Constraints/IdenticalToValidatorTest.php
	src/Symfony/Component/Validator/Tests/Constraints/RangeValidatorTest.php

1 files changed, 41 insertions, 0 deletions

diff --git a/Guard/AbstractGuardAuthenticator.php b/Guard/AbstractGuardAuthenticator.php
new file mode 100644
index 0000000..609d772
--- /dev/null
+++ b/Guard/AbstractGuardAuthenticator.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Guard;
+
+use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\Security\Guard\Token\PostAuthenticationGuardToken;
+
+/**
+ * An optional base class that creates a PostAuthenticationGuardToken for you.
+ *
+ * @author Ryan Weaver <ryan@knpuniversity.com>
+ */
+abstract class AbstractGuardAuthenticator implements GuardAuthenticatorInterface
+{
+    /**
+     * Shortcut to create a PostAuthenticationGuardToken for you, if you don't really
+     * care about which authenticated token you're using.
+     *
+     * @param UserInterface $user
+     * @param string        $providerKey
+     *
+     * @return PostAuthenticationGuardToken
+     */
+    public function createAuthenticatedToken(UserInterface $user, $providerKey)
+    {
+        return new PostAuthenticationGuardToken(
+            $user,
+            $providerKey,
+            $user->getRoles()
+        );
+    }
+}