140 lines
3.5 KiB
PHP
140 lines
3.5 KiB
PHP
<?php
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/*
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* This file is part of the Assetic package, an OpenSky project.
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*
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* (c) 2010-2012 OpenSky Project Inc
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Assetic\Filter;
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use Assetic\Asset\AssetInterface;
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use Assetic\Exception\FilterException;
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use Symfony\Component\Process\ProcessBuilder;
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/**
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* CSSEmbed filter
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*
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* @link https://github.com/nzakas/cssembed
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* @author Maxime Thirouin <maxime.thirouin@gmail.com>
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*/
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class CssEmbedFilter implements FilterInterface
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{
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private $jarPath;
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private $javaPath;
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private $charset;
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private $mhtml; // Enable MHTML mode.
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private $mhtmlRoot; // Use <root> as the MHTML root for the file.
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private $root; // Prepends <root> to all relative URLs.
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private $skipMissing; // Don't throw an error for missing image files.
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private $maxUriLength; // Maximum length for a data URI. Defaults to 32768.
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private $maxImageSize; // Maximum image size (in bytes) to convert.
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public function __construct($jarPath, $javaPath = '/usr/bin/java')
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{
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$this->jarPath = $jarPath;
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$this->javaPath = $javaPath;
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}
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public function setCharset($charset)
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{
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$this->charset = $charset;
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}
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public function setMhtml($mhtml)
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{
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$this->mhtml = $mhtml;
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}
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public function setMhtmlRoot($mhtmlRoot)
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{
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$this->mhtmlRoot = $mhtmlRoot;
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}
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public function setRoot($root)
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{
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$this->root = $root;
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}
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public function setSkipMissing($skipMissing)
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{
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$this->skipMissing = $skipMissing;
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}
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public function setMaxUriLength($maxUriLength)
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{
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$this->maxUriLength = $maxUriLength;
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}
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public function setMaxImageSize($maxImageSize)
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{
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$this->maxImageSize = $maxImageSize;
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}
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public function filterLoad(AssetInterface $asset)
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{
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}
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public function filterDump(AssetInterface $asset)
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{
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$pb = new ProcessBuilder(array(
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$this->javaPath,
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'-jar',
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$this->jarPath,
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));
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if (null !== $this->charset) {
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$pb->add('--charset')->add($this->charset);
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}
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if ($this->mhtml) {
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$pb->add('--mhtml');
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}
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if (null !== $this->mhtmlRoot) {
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$pb->add('--mhtmlroot')->add($this->mhtmlRoot);
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}
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// automatically define root if not already defined
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if (null === $this->root) {
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$root = $asset->getSourceRoot();
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$path = $asset->getSourcePath();
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if ($root && $path) {
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$pb->add('--root')->add(dirname($root.'/'.$path));
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}
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} else {
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$pb->add('--root')->add($this->root);
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}
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if ($this->skipMissing) {
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$pb->add('--skip-missing');
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}
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if (null !== $this->maxUriLength) {
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$pb->add('--max-uri-length')->add($this->maxUriLength);
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}
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if (null !== $this->maxImageSize) {
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$pb->add('--max-image-size')->add($this->maxImageSize);
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}
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// input
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$pb->add($input = tempnam(sys_get_temp_dir(), 'assetic_cssembed'));
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file_put_contents($input, $asset->getContent());
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$proc = $pb->getProcess();
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$code = $proc->run();
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unlink($input);
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if (0 < $code) {
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throw FilterException::fromProcess($proc)->setInput($asset->getContent());
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}
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$asset->setContent($proc->getOutput());
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}
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}
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