mirror of
https://github.com/nuxsmin/sysPass.git
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101 lines
2.7 KiB
PHP
101 lines
2.7 KiB
PHP
<?php
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/*
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* sysPass
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*
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* @author nuxsmin
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* @link https://syspass.org
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* @copyright 2012-2023, Rubén Domínguez nuxsmin@$syspass.org
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*
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* This file is part of sysPass.
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*
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* sysPass is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* 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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* sysPass 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 sysPass. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace SP\Core\Crypt;
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use SP\Core\Context\SessionContextInterface;
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use SP\Domain\Config\Ports\ConfigDataInterface;
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use SP\Http\RequestInterface;
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use function SP\logger;
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/**
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* Class Csrf
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*
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* @package SP\Core\Crypt
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*/
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class Csrf implements CsrfInterface
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{
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public function __construct(
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private readonly SessionContextInterface $context,
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private readonly RequestInterface $request,
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private readonly ConfigDataInterface $configData
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) {
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}
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/**
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* Check for CSRF token on POST requests
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*/
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public function check(): bool
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{
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$method = strtoupper($this->request->getMethod());
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$with = $this->request->getHeader('X-Requested-With');
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if ($this->context->isLoggedIn()
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&& $this->context->getCSRF() !== null
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&& ($method === 'POST'
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|| ($method === 'GET' && $with === 'XMLHttpRequest'))
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) {
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$token = $this->request->getHeader('X-CSRF');
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if (empty($token)
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|| !Hash::checkMessage($this->getKey(), $this->configData->getPasswordSalt(), $token)
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) {
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logger(sprintf('Invalid CSRF token: %s', $token), 'ERROR');
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return false;
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}
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logger('CSRF token OK');
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}
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return true;
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}
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/**
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* Devolver la llave de cifrado para los datos de la cookie
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*/
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private function getKey(): string
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{
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return sha1(sprintf("%s%s", $this->request->getHeader('User-Agent'), $this->request->getClientAddress()));
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}
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/**
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* Initialize the CSRF key
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*/
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public function initialize(): void
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{
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if ($this->context->isLoggedIn()
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&& $this->context->getCSRF() === null
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) {
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$key = Hash::signMessage($this->getKey(), $this->configData->getPasswordSalt());
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$this->context->setCSRF($key);
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logger(sprintf('CSRF key (set): %s', $this->context->getCSRF()));
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}
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}
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}
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