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[Security] added support for custom expression language functions

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This commit is contained in:
Fabien Potencier 2014-09-23 17:31:07 +02:00
parent 79bcd52b6b
commit 1a39046e8b
3 changed files with 67 additions and 32 deletions
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3
src/Symfony/Component/DependencyInjection/ExpressionLanguage.php
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@ -25,7 +25,8 @@ class ExpressionLanguage extends BaseExpressionLanguage
{
public function __construct(ParserCacheInterface $cache = null, array $providers = array())
{
$providers[] = new ExpressionLanguageProvider();
// prepend the default provider to let users overide it easily
array_unshift($providers, new ExpressionLanguageProvider());
parent::__construct($cache, $providers);
}

38
src/Symfony/Component/Security/Core/Authorization/ExpressionLanguage.php
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@ -12,46 +12,22 @@
namespace Symfony\Component\Security\Core\Authorization;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage as BaseExpressionLanguage;
use Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface;
/**
* Adds some function to the default ExpressionLanguage.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @see ExpressionLanguageProvider
*/
class ExpressionLanguage extends BaseExpressionLanguage
{
protected function registerFunctions()
public function __construct(ParserCacheInterface $cache = null, array $providers = array())
{
parent::registerFunctions();
// prepend the default provider to let users overide it easily
array_unshift($providers, new ExpressionLanguageProvider());
$this->register('is_anonymous', function () {
return '$trust_resolver->isAnonymous($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isAnonymous($variables['token']);
});
$this->register('is_authenticated', function () {
return '$token && !$trust_resolver->isAnonymous($token)';
}, function (array $variables) {
return $variables['token'] && !$variables['trust_resolver']->isAnonymous($variables['token']);
});
$this->register('is_fully_authenticated', function () {
return '$trust_resolver->isFullFledged($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isFullFledged($variables['token']);
});
$this->register('is_remember_me', function () {
return '$trust_resolver->isRememberMe($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isRememberMe($variables['token']);
});
$this->register('has_role', function ($role) {
return sprintf('in_array(%s, $roles)', $role);
}, function (array $variables, $role) {
return in_array($role, $variables['roles']);
});
parent::__construct($cache, $providers);
}
}

58
src/Symfony/Component/Security/Core/Authorization/ExpressionLanguageProvider.php Normal file
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@ -0,0 +1,58 @@
<?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\Core\Authorization;
use Symfony\Component\ExpressionLanguage\ExpressionFunction;
use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
/**
* Define some ExpressionLanguage functions.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ExpressionLanguageProvider implements ExpressionFunctionProviderInterface
{
public function getFunctions()
{
return array(
new ExpressionFunction('is_anonymous', function () {
return '$trust_resolver->isAnonymous($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isAnonymous($variables['token']);
}),
new ExpressionFunction('is_authenticated', function () {
return '$token && !$trust_resolver->isAnonymous($token)';
}, function (array $variables) {
return $variables['token'] && !$variables['trust_resolver']->isAnonymous($variables['token']);
}),
new ExpressionFunction('is_fully_authenticated', function () {
return '$trust_resolver->isFullFledged($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isFullFledged($variables['token']);
}),
new ExpressionFunction('is_remember_me', function () {
return '$trust_resolver->isRememberMe($token)';
}, function (array $variables) {
return $variables['trust_resolver']->isRememberMe($variables['token']);
}),
new ExpressionFunction('has_role', function ($role) {
return sprintf('in_array(%s, $roles)', $role);
}, function (array $variables, $role) {
return in_array($role, $variables['roles']);
}),
);
}
}