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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Page;
use Psr\EventDispatcher\EventDispatcherInterface;
use TYPO3\CMS\Core\Page\Event\BeforeJavaScriptsRenderingEvent;
use TYPO3\CMS\Core\Page\Event\BeforeStylesheetsRenderingEvent;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\ConsumableNonce;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\PathUtility;
/**
* @internal The AssetRenderer is used for the asset rendering and is not public API
*/
class AssetRenderer
{
/**
* @var AssetCollector
*/
protected $assetCollector;
/**
* @var EventDispatcherInterface
*/
protected $eventDispatcher;
public function __construct(AssetCollector $assetCollector = null, EventDispatcherInterface $eventDispatcher = null)
{
$this->assetCollector = $assetCollector ?? GeneralUtility::makeInstance(AssetCollector::class);
$this->eventDispatcher = $eventDispatcher ?? GeneralUtility::makeInstance(EventDispatcherInterface::class);
}
public function renderInlineJavaScript($priority = false, ?ConsumableNonce $nonce = null): string
{
$this->eventDispatcher->dispatch(
new BeforeJavaScriptsRenderingEvent($this->assetCollector, true, $priority)
);
$template = '<script%attributes%>%source%</script>';
$assets = $this->assetCollector->getInlineJavaScripts($priority);
return $this->render($assets, $template, $nonce);
}
public function renderJavaScript($priority = false, ?ConsumableNonce $nonce = null): string
{
$this->eventDispatcher->dispatch(
new BeforeJavaScriptsRenderingEvent($this->assetCollector, false, $priority)
);
$template = '<script%attributes%></script>';
$assets = $this->assetCollector->getJavaScripts($priority);
foreach ($assets as &$assetData) {
$assetData['attributes']['src'] = $this->getAbsoluteWebPath($assetData['source']);
}
return $this->render($assets, $template, $nonce);
}
public function renderInlineStyleSheets($priority = false, ?ConsumableNonce $nonce = null): string
{
$this->eventDispatcher->dispatch(
new BeforeStylesheetsRenderingEvent($this->assetCollector, true, $priority)
);
$template = '<style%attributes%>%source%</style>';
$assets = $this->assetCollector->getInlineStyleSheets($priority);
return $this->render($assets, $template, $nonce);
}
public function renderStyleSheets(bool $priority = false, string $endingSlash = '', ?ConsumableNonce $nonce = null): string
{
$this->eventDispatcher->dispatch(
new BeforeStylesheetsRenderingEvent($this->assetCollector, false, $priority)
);
$template = '<link%attributes% ' . $endingSlash . '>';
$assets = $this->assetCollector->getStyleSheets($priority);
foreach ($assets as &$assetData) {
$assetData['attributes']['href'] = $this->getAbsoluteWebPath($assetData['source']);
$assetData['attributes']['rel'] = $assetData['attributes']['rel'] ?? 'stylesheet';
}
return $this->render($assets, $template, $nonce);
}
protected function render(array $assets, string $template, ?ConsumableNonce $nonce = null): string
{
$results = [];
foreach ($assets as $assetData) {
$attributes = $assetData['attributes'];
if ($nonce !== null && !empty($assetData['options']['useNonce'])) {
$attributes['nonce'] = $nonce->consume();
}
$attributesString = count($attributes) ? ' ' . GeneralUtility::implodeAttributes($attributes, true) : '';
$results[] = str_replace(
['%attributes%', '%source%'],
[$attributesString, $assetData['source']],
$template
);
}
return implode(LF, $results);
}
private function getAbsoluteWebPath(string $file): string
{
if (PathUtility::hasProtocolAndScheme($file)) {
return $file;
}
$file = PathUtility::getAbsoluteWebPath(GeneralUtility::getFileAbsFileName($file));
return GeneralUtility::createVersionNumberedFilename($file);
}
}