mirror of
https://github.com/Part-DB/Part-DB-server.git
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95 lines
3.6 KiB
PHP
95 lines
3.6 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 - 2020 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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/**
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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 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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namespace App\Security\Voter;
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use App\Entity\UserSystem\User;
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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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*/
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class PermissionVoter extends ExtendedVoter
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{
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/**
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* Similar to voteOnAttribute, but checking for the anonymous user is already done.
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* The current user (or the anonymous user) is passed by $user.
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*
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* @param string $attribute
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*/
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protected function voteOnUser(string $attribute, $subject, User $user): bool
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{
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$attribute = ltrim($attribute, '@');
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[$perm, $op] = explode('.', $attribute);
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return $this->resolver->inherit($user, $perm, $op) ?? false;
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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, $subject): bool
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{
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//Check if the attribute has the form @permission.operation
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if (preg_match('#^@\\w+\\.\\w+$#', $attribute)) {
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$attribute = ltrim($attribute, '@');
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[$perm, $op] = explode('.', $attribute);
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$valid = $this->resolver->isValidOperation($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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