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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} |