mirror of
https://github.com/Part-DB/Part-DB-server.git
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84 lines
3 KiB
PHP
84 lines
3 KiB
PHP
<?php
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/**
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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declare(strict_types=1);
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namespace App\Security\Voter;
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use App\Entity\UserSystem\User;
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use App\Services\UserSystem\VoterHelper;
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
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use Symfony\Component\Security\Core\Authorization\Voter\Voter;
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/**
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* This voter allows you to directly check permissions from the permission structure, without passing an object.
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* This use the syntax like "@permission.op"
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* However you should use the "normal" object based voters if possible, because they are needed for a future ACL system.
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* @phpstan-extends Voter<non-empty-string, null>
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*/
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final class PermissionVoter extends Voter
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{
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public function __construct(private readonly VoterHelper $helper)
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{
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}
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protected function voteOnAttribute(string $attribute, mixed $subject, TokenInterface $token): bool
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{
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$attribute = ltrim($attribute, '@');
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[$perm, $op] = explode('.', $attribute);
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return $this->helper->isGranted($token, $perm, $op);
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}
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public function supportsAttribute(string $attribute): bool
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{
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//Check if the attribute has the form '@permission.operation'
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return preg_match('#^@\\w+\\.\\w+$#', $attribute) === 1;
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}
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/**
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* Determines if the attribute and subject are supported by this voter.
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*
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* @param string $attribute An attribute
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* @param mixed $subject The subject to secure, e.g. an object the user wants to access or any other PHP type
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*
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* @return bool True if the attribute and subject are supported, false otherwise
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*/
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protected function supports(string $attribute, mixed $subject): bool
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{
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//Check if the attribute has the form @permission.operation
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if (preg_match('#^@\\w+\\.\\w+$#', $attribute)) {
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$attribute = ltrim($attribute, '@');
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[$perm, $op] = explode('.', $attribute);
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$valid = $this->helper->isValidOperation($perm, $op);
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//if an invalid operation is encountered, throw an exception so the developer knows it
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if(!$valid) {
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throw new \RuntimeException('Encountered invalid permission operation "'.$op.'" for permission "'.$perm.'"!');
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}
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return true;
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}
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return false;
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}
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}
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