Adding a base class to assist with form login authentication
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<?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@symfony.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\Security\Guard\Authenticator;
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use Symfony\Component\Security\Guard\AbstractGuardAuthenticator;
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use Symfony\Component\HttpFoundation\RedirectResponse;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
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use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
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use Symfony\Component\Security\Core\Exception\AuthenticationException;
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use Symfony\Component\Security\Core\Exception\BadCredentialsException;
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use Symfony\Component\Security\Core\Security;
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use Symfony\Component\Security\Core\User\UserInterface;
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use Symfony\Component\Security\Core\User\UserProviderInterface;
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/**
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* A base class to make form login authentication easier!
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*
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* @author Ryan Weaver <ryan@knpuniversity.com>
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*/
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abstract class AbstractFormLoginAuthenticator extends AbstractGuardAuthenticator
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{
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/**
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* Return the URL to the login page
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*
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* @return string
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*/
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abstract protected function getLoginUrl();
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/**
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* The user will be redirected to the secure page they originally tried
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* to access. But if no such page exists (i.e. the user went to the
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* login page directly), this returns the URL the user should be redirected
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* to after logging in successfully (e.g. your homepage)
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*
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* @return string
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*/
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abstract protected function getDefaultSuccessRedirectUrl();
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/**
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* Override to change what happens after a bad username/password is submitted
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*
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* @param Request $request
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* @param AuthenticationException $exception
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* @return RedirectResponse
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*/
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public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
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{
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$request->getSession()->set(Security::AUTHENTICATION_ERROR, $exception);
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$url = $this->getLoginUrl();
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return new RedirectResponse($url);
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}
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/**
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* Override to change what happens after successful authentication
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*
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* @param Request $request
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* @param TokenInterface $token
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* @param string $providerKey
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* @return RedirectResponse
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*/
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public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
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{
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// if the user hit a secure page and start() was called, this was
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// the URL they were on, and probably where you want to redirect to
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$targetPath = $request->getSession()->get('_security.'.$providerKey.'.target_path');
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if (!$targetPath) {
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$targetPath = $this->getDefaultSuccessRedirectUrl();
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}
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return new RedirectResponse($targetPath);
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}
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public function supportsRememberMe()
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{
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return true;
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}
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/**
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* Override to control what happens when the user hits a secure page
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* but isn't logged in yet.
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*
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* @param Request $request
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* @param AuthenticationException|null $authException
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* @return RedirectResponse
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*/
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public function start(Request $request, AuthenticationException $authException = null)
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{
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$url = $this->getLoginUrl();
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return new RedirectResponse($url);
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}
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}
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