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/opt/cloudlinux/alt-php55/root/usr/share/pear/Symfony/Component/Form/Extension/Csrf/CsrfProvider/DefaultCsrfProvider.php

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<?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\Form\Extension\Csrf\CsrfProvider;

/**
 * Default implementation of CsrfProviderInterface.
 *
 * This provider uses the session ID returned by session_id() as well as a
 * user-defined secret value to secure the CSRF token.
 *
 * @author Bernhard Schussek <bschussek@gmail.com>
 *
 * @deprecated Deprecated since version 2.4, to be removed in Symfony 3.0. Use
 *             {@link \Symfony\Component\Security\Csrf\CsrfTokenManager} in
 *             combination with {@link \Symfony\Component\Security\Csrf\TokenStorage\NativeSessionTokenStorage}
 *             instead.
 */
class DefaultCsrfProvider implements CsrfProviderInterface
{
    /**
     * A secret value used for generating the CSRF token
     * @var string
     */
    protected $secret;

/**
     * Initializes the provider with a secret value
     *
     * A recommended value for the secret is a generated value with at least
     * 32 characters and mixed letters, digits and special characters.
     *
     * @param string $secret A secret value included in the CSRF token
     */
    public function __construct($secret)
    {
        $this->secret = $secret;
    }

/**
     * {@inheritDoc}
     */
    public function generateCsrfToken($intention)
    {
        return sha1($this->secret.$intention.$this->getSessionId());
    }

/**
     * {@inheritDoc}
     */
    public function isCsrfTokenValid($intention, $token)
    {
        return $token === $this->generateCsrfToken($intention);
    }

/**
     * Returns the ID of the user session.
     *
     * Automatically starts the session if necessary.
     *
     * @return string The session ID
     */
    protected function getSessionId()
    {
        if (version_compare(PHP_VERSION, '5.4', '>=')) {
            if (PHP_SESSION_NONE === session_status()) {
                session_start();
            }
        } elseif (!session_id()) {
            session_start();
        }

return session_id();
    }
}

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Name	Size	Perms	Modified	Actions
CsrfProviderAdapter.php	1.72 KB	lrw-r--r--	2019-12-18 11:24:06	Edit Download recursive recursive
CsrfProviderInterface.php	1.94 KB	lrw-r--r--	2019-12-18 11:24:06	Edit Download recursive recursive
CsrfTokenManagerAdapter.php	1.33 KB	lrw-r--r--	2019-12-18 11:24:06	Edit Download recursive recursive
DefaultCsrfProvider.php	2.18 KB	lrw-r--r--	2019-12-18 11:24:06	Edit Download recursive recursive
SessionCsrfProvider.php	1.64 KB	lrw-r--r--	2019-12-18 11:24:06	Edit Download recursive recursive

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