The start of something beautiful

vendor/symfony/twig-bridge/Extension/SecurityExtension.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\Bridge\Twig\Extension;
+
+use Symfony\Component\Security\Acl\Voter\FieldVote;
+use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
+use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
+use Symfony\Component\Security\Http\Impersonate\ImpersonateUrlGenerator;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+/**
+ * SecurityExtension exposes security context features.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+final class SecurityExtension extends AbstractExtension
+{
+    public function __construct(
+        private ?AuthorizationCheckerInterface $securityChecker = null,
+        private ?ImpersonateUrlGenerator $impersonateUrlGenerator = null,
+    ) {
+    }
+
+    public function isGranted(mixed $role, mixed $object = null, ?string $field = null): bool
+    {
+        if (null === $this->securityChecker) {
+            return false;
+        }
+
+        if (null !== $field) {
+            $object = new FieldVote($object, $field);
+        }
+
+        try {
+            return $this->securityChecker->isGranted($role, $object);
+        } catch (AuthenticationCredentialsNotFoundException) {
+            return false;
+        }
+    }
+
+    public function getImpersonateExitUrl(?string $exitTo = null): string
+    {
+        if (null === $this->impersonateUrlGenerator) {
+            return '';
+        }
+
+        return $this->impersonateUrlGenerator->generateExitUrl($exitTo);
+    }
+
+    public function getImpersonateExitPath(?string $exitTo = null): string
+    {
+        if (null === $this->impersonateUrlGenerator) {
+            return '';
+        }
+
+        return $this->impersonateUrlGenerator->generateExitPath($exitTo);
+    }
+
+    public function getImpersonateUrl(string $identifier): string
+    {
+        if (null === $this->impersonateUrlGenerator) {
+            return '';
+        }
+
+        return $this->impersonateUrlGenerator->generateImpersonationUrl($identifier);
+    }
+
+    public function getImpersonatePath(string $identifier): string
+    {
+        if (null === $this->impersonateUrlGenerator) {
+            return '';
+        }
+
+        return $this->impersonateUrlGenerator->generateImpersonationPath($identifier);
+    }
+
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('is_granted', $this->isGranted(...)),
+            new TwigFunction('impersonation_exit_url', $this->getImpersonateExitUrl(...)),
+            new TwigFunction('impersonation_exit_path', $this->getImpersonateExitPath(...)),
+            new TwigFunction('impersonation_url', $this->getImpersonateUrl(...)),
+            new TwigFunction('impersonation_path', $this->getImpersonatePath(...)),
+        ];
+    }
+}