[FrameworkBundle] added $view['form']->csrfToken() helper
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@ -97,6 +97,7 @@
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<service id="templating.helper.form" class="%templating.helper.form.class%">
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<tag name="templating.helper" alias="form" />
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<argument type="service" id="templating.engine.php" />
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<argument type="service" id="form.csrf_provider" />
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<argument>%templating.helper.form.resources%</argument>
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</service>
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@ -15,6 +15,7 @@ use Symfony\Component\Templating\Helper\Helper;
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use Symfony\Component\Templating\EngineInterface;
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use Symfony\Component\Form\FormView;
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use Symfony\Component\Form\Exception\FormException;
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use Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderInterface;
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use Symfony\Component\Form\Util\FormUtil;
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/**
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@ -27,6 +28,8 @@ class FormHelper extends Helper
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{
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protected $engine;
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protected $csrfProvider;
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protected $varStack;
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protected $context;
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@ -38,14 +41,16 @@ class FormHelper extends Helper
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protected $templates;
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/**
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* Constructor;
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* Constructor.
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*
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* @param EngineInterface $engine The templating engine
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* @param array $resources An array of theme name
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* @param EngineInterface $engine The templating engine
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* @param CsrfProviderInterface $csrfProvider The CSRF provider
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* @param array $resources An array of theme names
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*/
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public function __construct(EngineInterface $engine, array $resources)
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public function __construct(EngineInterface $engine, CsrfProviderInterface $csrfProvider, array $resources)
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{
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$this->engine = $engine;
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$this->csrfProvider = $csrfProvider;
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$this->resources = $resources;
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$this->varStack = array();
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$this->context = array();
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@ -172,6 +177,34 @@ class FormHelper extends Helper
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return $this->renderSection($view, 'rest', $variables);
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}
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/**
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* Returns a CSRF token.
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*
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* Use this helper for CSRF protection without the overhead of creating a
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* form.
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*
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* <code>
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* echo $view['form']->csrfToken('rm_user_'.$user->getId());
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* </code>
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*
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* Check the token in your action using the same intention.
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*
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* <code>
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* $csrfProvider = $this->get('form.csrf_provider');
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* if (!$csrfProvider->isCsrfTokenValid('rm_user_'.$user->getId(), $token)) {
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* throw new \RuntimeException('CSRF attack detected.');
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* }
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* </code>
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*
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* @param string $intention The intention of the protected action
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*
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* @return string A CSRF token
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*/
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public function csrfToken($intention)
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{
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return $this->csrfProvider->generateCsrfToken($intention);
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}
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/**
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* Renders a template.
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*
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@ -37,7 +37,7 @@ class FormHelperDivLayoutTest extends AbstractDivLayoutTest
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$loader = new FilesystemLoader(array());
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$engine = new PhpEngine($templateNameParser, $loader);
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$this->helper = new FormHelper($engine, array('FrameworkBundle:Form'));
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$this->helper = new FormHelper($engine, $this->getMock('Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderInterface'), array('FrameworkBundle:Form'));
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$engine->setHelpers(array(
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$this->helper,
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@ -37,7 +37,7 @@ class FormHelperTableLayoutTest extends AbstractTableLayoutTest
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$loader = new FilesystemLoader(array());
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$engine = new PhpEngine($templateNameParser, $loader);
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$this->helper = new FormHelper($engine, array(
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$this->helper = new FormHelper($engine, $this->getMock('Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderInterface'), array(
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'FrameworkBundle:Form',
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'FrameworkBundle:FormTable'
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));
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