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<?php |
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namespace PSFS\base\extension\traits; |
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use MatthiasMullie\Minify\CSS; |
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use PSFS\base\config\Config; |
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use PSFS\base\exception\ConfigException; |
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use PSFS\base\Logger; |
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use PSFS\base\types\helpers\AssetsHelper; |
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use PSFS\base\types\helpers\GeneratorHelper; |
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use PSFS\base\types\helpers\Inspector; |
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/** |
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* Trait CssTrait |
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* @package PSFS\base\extension\traits |
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*/ |
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trait CssTrait { |
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use SRITrait { |
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getSriHash as getCssSRIHash; |
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} |
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/** |
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* @var string |
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*/ |
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protected $path; |
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/** |
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* @param string $basePath |
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* @param string $hash |
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* @param bool $debug |
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* @return $this |
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* @throws \PSFS\base\exception\GeneratorException |
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*/ |
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protected function compileCss($basePath, $hash) |
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{ |
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$debug = Config::getParam('debug'); |
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$base = $basePath . "css" . DIRECTORY_SEPARATOR; |
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if ($debug || !file_exists($base . $hash . ".css")) { |
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$data = ''; |
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if (0 < count($this->files)) { |
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$minifier = new CSS(); |
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foreach ($this->files as $file) { |
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$data = $this->processCssLine($file, $base, $data, $hash); |
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} |
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} |
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if($debug) { |
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AssetsHelper::storeContents($base . $hash . ".css", $data); |
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} else { |
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$minifier = new CSS(); |
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$minifier->add($data); |
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ini_set('max_execution_time', -1); |
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ini_set('memory_limit', -1); |
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GeneratorHelper::createDir($base); |
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$minifier->minify($base . $hash . ".css"); |
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} |
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unset($minifier); |
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} |
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return $this; |
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} |
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/** |
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* Método que procesa cada línea de la hoja de estilos para copiar los recursos asociados |
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* @param string $file |
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* @param string $base |
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* @param string $data |
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* @return false|string |
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* @throws \PSFS\base\exception\GeneratorException |
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*/ |
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protected function processCssLine($file, $base, $data, $hash) |
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{ |
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if (file_exists($file)) { |
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$debug = Config::getParam('debug'); |
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$pathParts = explode("/", $file); |
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$filePath = $this->hash . "_" . $pathParts[count($pathParts) - 1]; |
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if (!file_exists($base . $filePath) || filemtime($base . $filePath) < filemtime($file) || $debug) { |
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//Si tenemos modificaciones tenemos que compilar de nuevo todos los ficheros modificados |
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if (file_exists($base . $hash . ".css") && @unlink($base . $hash . ".css") === false) { |
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throw new ConfigException("Can't unlink file " . $base . $hash . ".css"); |
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} |
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$this->loopCssLines($file); |
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} |
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if ($debug) { |
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$data = file_get_contents($file); |
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AssetsHelper::storeContents($base . $filePath, $data); |
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} else { |
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$data .= file_get_contents($file); |
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} |
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$this->compiledFiles[] = "/css/" . $filePath; |
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} |
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return $data; |
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} |
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/** |
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* @param string $file |
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*/ |
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protected function loopCssLines($file) |
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{ |
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$handle = @fopen($file, 'r'); |
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if ($handle) { |
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while (!feof($handle)) { |
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$line = fgets($handle); |
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$urls = array(); |
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if (preg_match_all('#url\((.*?)\)#', $line, $urls, PREG_SET_ORDER)) { |
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foreach ($urls as $source) { |
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$this->extractCssResources($source, $file); |
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} |
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} |
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} |
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fclose($handle); |
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} |
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} |
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/** |
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* @param string|array $source |
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* @param string $file |
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*/ |
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protected function extractCssResources($source, $file) |
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{ |
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Inspector::stats('[CssTrait] Start collecting resources from ' . $file, Inspector::SCOPE_DEBUG); |
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$sourceFile = AssetsHelper::extractSourceFilename($source); |
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$orig = realpath(dirname($file) . DIRECTORY_SEPARATOR . $sourceFile); |
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$origPart = preg_split('/(\/|\\\)public(\/|\\\)/i', $orig); |
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try { |
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if (count($source) > 1 && array_key_exists(1, $origPart)) { |
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$dest = $this->path . $origPart[1]; |
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GeneratorHelper::createDir(dirname($dest)); |
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if (!file_exists($dest) || filemtime($orig) > filemtime($dest)) { |
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if (@copy($orig, $dest) === FALSE) { |
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throw new \RuntimeException('Can\' copy ' . $dest . ''); |
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} |
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Logger::log("$orig copiado a $dest", LOG_INFO); |
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} |
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} |
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} catch (\Exception $e) { |
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Logger::log($e->getMessage(), LOG_ERR); |
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} |
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Inspector::stats('[CssTrait] End collecting resources from ' . $file, Inspector::SCOPE_DEBUG); |
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} |
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/** |
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* @param array $compiledFiles |
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* @param string $baseUrl |
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* @param string $hash |
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*/ |
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protected function printCss(array $compiledFiles, $baseUrl, $hash) |
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{ |
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if (Config::getParam('debug') && 0 < count($compiledFiles)) { |
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foreach ($compiledFiles as $file) { |
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echo "\t\t<link href='{$file}' rel='stylesheet' media='screen, print'>"; |
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} |
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} else { |
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$sri = $this->getCssSRIHash($hash, 'css'); |
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echo "\t\t<link href='" . $baseUrl . "/css/" . $hash . ".css' rel='stylesheet' " . |
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"crossorigin='anonymous' integrity='sha384-" . $sri . "'>"; |
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} |
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} |
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} |
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psfs /
core
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