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Daniel Siepmann
33685d1735
Allow Integrator to define rules to track views of records. This allows to add tracking to extensions like tx_news. Integrators are able to define matching rules on current request. If a request matches, the record is stored as individual view beside existing pageview. Relates: #14
90 lines
2.6 KiB
PHP
90 lines
2.6 KiB
PHP
<?php
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namespace DanielSiepmann\Tracking\Middleware;
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/*
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* Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
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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
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* 02110-1301, USA.
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*/
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use DanielSiepmann\Tracking\Domain\Model\RecordRule;
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use DanielSiepmann\Tracking\Domain\Recordview\Factory;
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use DanielSiepmann\Tracking\Domain\Repository\Recordview as Repository;
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use Psr\Http\Server\MiddlewareInterface;
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use Psr\Http\Server\RequestHandlerInterface;
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use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
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use TYPO3\CMS\Core\Context\Context;
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class Recordview implements MiddlewareInterface
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{
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/**
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* @var Repository
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*/
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private $repository;
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/**
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* @var Context
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*/
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private $context;
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/**
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* @var array<RecordRule>
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*/
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private $rules = [];
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public function __construct(
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Repository $repository,
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Context $context,
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array $rules
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) {
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$this->repository = $repository;
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$this->context = $context;
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$this->rules = RecordRule::multipleFromArray($rules);
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}
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public function process(
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ServerRequestInterface $request,
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RequestHandlerInterface $handler
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): ResponseInterface {
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foreach ($this->rules as $rule) {
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if ($this->shouldTrack($request, $this->context, $rule)) {
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$this->repository->add(Factory::fromRequest($request, $rule));
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}
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}
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return $handler->handle($request);
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}
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private function shouldTrack(
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ServerRequestInterface $request,
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Context $context,
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RecordRule $rule
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): bool {
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// Need silent, as expression language doens't provide a way to check for array keys
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return @(bool) (new ExpressionLanguage())->evaluate(
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$rule->getMatchesExpression(),
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[
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'request' => $request,
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'context' => $context,
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]
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);
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}
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}
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