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<?php |
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declare(strict_types=1); |
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namespace voku\twig; |
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use Twig\Environment; |
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use Twig\Extension\AbstractExtension; |
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use Twig\TwigFilter; |
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use Twig\TwigFunction; |
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use voku\cache\Cache; |
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use voku\helper\HtmlMin; |
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class MinifyHtmlExtension extends AbstractExtension |
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{ |
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/** |
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* @var array |
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*/ |
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private $options = [ |
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'is_safe' => ['html'], |
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'needs_environment' => true, |
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]; |
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/** |
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* @var callable |
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*/ |
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private $callable; |
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/** |
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* @var HtmlMin |
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*/ |
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private $minifier; |
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/** |
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* @var bool |
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*/ |
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private $forceCompression = false; |
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/** |
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* MinifyHtmlExtension constructor. |
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* |
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* @param HtmlMin $htmlMin |
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* @param bool $forceCompression Default: false. Forces compression regardless of Twig's debug setting. |
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*/ |
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public function __construct(HtmlMin $htmlMin, bool $forceCompression = false) |
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{ |
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$this->forceCompression = $forceCompression; |
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$this->minifier = $htmlMin; |
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$this->callable = [$this, 'compress']; |
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} |
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/** |
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* @param Environment $twig |
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* @param string $html |
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* |
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* @return string |
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*/ |
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public function compress(Environment $twig, $html) |
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{ |
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if ($this->isCompressionActive($twig)) { |
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static $cache = null; |
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if ($cache === null) { |
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$cache = new Cache(null, null, false); |
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} |
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$cacheKey = 'HtmlMin::hash' . \md5($html); |
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if ( |
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$cache->getCacheIsReady() === true |
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&& |
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$cache->existsItem($cacheKey) === true |
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) { |
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return $cache->getItem($cacheKey); |
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} |
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$html = $this->minifier->minify($html); |
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if ($cache->getCacheIsReady() === true) { |
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$cache->setItem($cacheKey, $html, 3600); |
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} |
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return $html; |
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} |
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return $html; |
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} |
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/** @noinspection PhpMissingParentCallCommonInspection */ |
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/** |
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* @return array |
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*/ |
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public function getFilters(): array |
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{ |
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return [ |
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new TwigFilter('htmlcompress', $this->callable, $this->options), |
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]; |
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} |
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/** @noinspection PhpMissingParentCallCommonInspection */ |
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public function getFunctions(): array |
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{ |
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return [ |
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new TwigFunction('htmlcompress', $this->callable, $this->options), |
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]; |
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} |
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/** @noinspection PhpMissingParentCallCommonInspection */ |
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public function getTokenParsers(): array |
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{ |
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return [ |
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new MinifyHtmlTokenParser(), |
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]; |
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} |
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/** |
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* @param Environment $twig |
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* |
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* @return bool |
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*/ |
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public function isCompressionActive(Environment $twig): bool |
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{ |
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return $this->forceCompression |
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|| |
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!$twig->isDebug(); |
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} |
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} |
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voku /
html-compress-twig
