110 lines
2.7 KiB
PHP
110 lines
2.7 KiB
PHP
<?php
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namespace Nextend\Framework\Cache;
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use Nextend\Framework\Filesystem\Filesystem;
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use Nextend\Framework\Misc\HttpClient;
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class CacheGoogleFont extends AbstractCache {
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protected $_storageEngine = 'filesystem';
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private $fontExtension;
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public function __construct() {
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parent::__construct('googlefonts', true);
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}
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/**
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* @param string $url
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*
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* @return boolean|string The path of the cached file
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*/
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public function makeCache($url, $extension) {
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$hash = $this->generateHash($url);
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$fileName = $hash;
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$fileNameWithExtension = $fileName . '.' . $extension;
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$isCached = $this->exists($fileNameWithExtension);
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if ($isCached) {
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if (!$this->testManifestFile($fileName)) {
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$isCached = false;
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}
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}
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if (!$isCached) {
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$cssContent = HttpClient::get($url);
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if (!$cssContent) {
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return false;
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}
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if ($extension === 'css') {
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$fontExtensions = array(
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'woff2',
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'ttf'
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);
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foreach ($fontExtensions as $this->fontExtension) {
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$cssContent = preg_replace_callback('/url\(["\']?(.*?\.' . $this->fontExtension . ')["\']?\)/i', function ($matches) {
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$url = $matches[1];
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$cache = new CacheGoogleFont();
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$path = $cache->makeCache($url, $this->fontExtension);
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if ($path) {
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$url = Filesystem::pathToAbsoluteURL($path);
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}
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return 'url(' . $url . ')';
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}, $cssContent);
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}
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}
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$this->set($fileNameWithExtension, $cssContent);
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$this->createManifestFile($fileName);
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}
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return $this->getPath($fileNameWithExtension);
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}
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private function generateHash($url) {
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return md5($url);
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}
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protected function testManifestFile($fileName) {
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$manifestKey = $this->getManifestKey($fileName);
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if ($this->exists($manifestKey)) {
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$manifestData = json_decode($this->get($manifestKey), true);
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if ($manifestData['mtime'] > strtotime('-30 days')) {
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return true;
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}
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}
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return false;
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}
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protected function createManifestFile($fileName) {
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$this->set($this->getManifestKey($fileName), json_encode($this->getManifestData()));
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}
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private function getManifestData() {
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return array(
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'mtime' => time()
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);
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}
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protected function getManifestKey($fileName) {
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return $fileName . '.manifest';
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}
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} |