tracking/Classes/Middleware/Recordview.php

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<?php
namespace DanielSiepmann\Tracking\Middleware;
/*
* Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
use DanielSiepmann\Tracking\Domain\Model\RecordRule;
use DanielSiepmann\Tracking\Domain\Recordview\Factory;
use DanielSiepmann\Tracking\Domain\Repository\Recordview as Repository;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
use TYPO3\CMS\Core\Context\Context;
class Recordview implements MiddlewareInterface
{
/**
* @var Repository
*/
private $repository;
/**
* @var Context
*/
private $context;
/**
* @var array<RecordRule>
*/
private $rules = [];
public function __construct(
Repository $repository,
Context $context,
array $rules
) {
$this->repository = $repository;
$this->context = $context;
$this->rules = RecordRule::multipleFromArray($rules);
}
public function process(
ServerRequestInterface $request,
RequestHandlerInterface $handler
): ResponseInterface {
foreach ($this->rules as $rule) {
if ($this->shouldTrack($request, $this->context, $rule)) {
$this->repository->add(Factory::fromRequest($request, $rule));
}
}
return $handler->handle($request);
}
private function shouldTrack(
ServerRequestInterface $request,
Context $context,
RecordRule $rule
): bool {
// Need silent, as expression language doens't provide a way to check for array keys
return @(bool) (new ExpressionLanguage())->evaluate(
$rule->getMatchesExpression(),
[
'request' => $request,
'context' => $context,
]
);
}
}