Your IP : 216.73.216.218
<?php
/**
* @package Gantry5
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2017 RocketTheme, LLC
* @license Dual License: MIT or GNU/GPLv2 and later
*
* http://opensource.org/licenses/MIT
* http://www.gnu.org/licenses/gpl-2.0.html
*
* Gantry Framework code that extends GPL code is considered GNU/GPLv2 and later
*/
namespace Gantry\Component\Stylesheet;
use Gantry\Component\Config\Config;
use Gantry\Component\Gantry\GantryTrait;
use Gantry\Framework\Gantry;
use Leafo\ScssPhp\Colors;
use RocketTheme\Toolbox\File\PhpFile;
use RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator;
abstract class CssCompiler implements CssCompilerInterface
{
use GantryTrait;
protected $type;
protected $name;
protected $debug = false;
protected $warnings = [];
/**
* @var array
*/
protected $fonts;
/**
* @var array
*/
protected $variables;
/**
* @var string
*/
protected $target = 'gantry-theme://css-compiled';
/**
* @var string
*/
protected $configuration = 'default';
/**
* @var array
*/
protected $paths;
/**
* @var array
*/
protected $files;
/**
* @var mixed
*/
protected $compiler;
/**
* @var bool
*/
protected $production;
public function __construct()
{
$gantry = static::gantry();
/** @var Config $global */
$global = $gantry['global'];
// In production mode we do not need to do any other checks.
$this->production = (bool) $global->get('production');
}
public function getWarnings()
{
return $this->warnings;
}
/**
* @return string
*/
public function getTarget()
{
return $this->target;
}
/**
* @param string $target
* @return $this
*/
public function setTarget($target = null)
{
if ($target !== null) {
$this->target = (string) $target;
}
return $this;
}
/**
* @param string $configuration
* @return $this
*/
public function setConfiguration($configuration = null)
{
if ($configuration !== null) {
$this->configuration = $configuration;
}
return $this;
}
/**
* @param array $fonts
* @return $this
*/
public function setFonts(array $fonts = null)
{
if ($fonts !== null) {
// Normalize font data.
$list = [];
foreach ($fonts as $family => $data) {
$family = strtolower($family);
if (is_array($data)) {
// font: [400: url1, 500: url2, 700: url3]
$list[$family] = $data;
} else {
// font: url
$list[$family] = [400 => (string) $data];
}
}
$this->compiler->setFonts($list);
}
return $this;
}
/**
* @param array $paths
* @return $this
*/
public function setPaths(array $paths = null)
{
if ($paths !== null) {
$this->paths = $paths;
}
return $this;
}
/**
* @param array $files
* @return $this
*/
public function setFiles(array $files = null)
{
if ($files !== null) {
$this->files = $files;
}
return $this;
}
/**
* @param string $name
* @return string
*/
public function getCssUrl($name)
{
$out = $name . ($this->configuration !== 'default' ? '_'. $this->configuration : '');
return "{$this->target}/{$out}.css";
}
/**
* @return $this
*/
public function compileAll()
{
foreach ($this->files as $file) {
$this->compileFile($file);
}
return $this;
}
public function needsCompile($in, $variables)
{
$gantry = static::gantry();
/** @var UniformResourceLocator $locator */
$locator = $gantry['locator'];
$out = $this->getCssUrl($in);
$path = $locator->findResource($out);
// Check if CSS file exists at all.
if (!$path) {
$this->setVariables($variables());
return true;
}
if ($this->production) {
// Open the file to see if it contains development comment in the beginning of the file.
$handle = fopen($path, "rb");
$contents = fread($handle, 36);
fclose($handle);
if ($contents === '/* GANTRY5 DEVELOPMENT MODE ENABLED.') {
$this->setVariables($variables());
return true;
}
// Compare checksum comment in the file.
if ($contents !== $this->checksum()) {
$this->setVariables($variables());
return true;
}
// In production mode we do not need to do any other checks.
return false;
}
$uri = basename($out);
$metaFile = PhpFile::instance($locator->findResource("gantry-cache://theme/scss/{$uri}.php", true, true));
// Check if meta file exists.
if (!$metaFile->exists()) {
$this->setVariables($variables());
return true;
}
$content = $metaFile->content();
$metaFile->free();
// Check if filename in meta file matches.
if (empty($content['file']) || $content['file'] != $out) {
$this->setVariables($variables());
return true;
}
// Check if meta timestamp matches to CSS file.
if (filemtime($path) != $content['timestamp']) {
$this->setVariables($variables());
return true;
}
$this->setVariables($variables());
// Check if variables have been changed.
$oldVariables = isset($content['variables']) ? $content['variables'] : [];
if ($oldVariables != $this->getVariables()) {
return true;
}
// Preload all CSS files to locator cache.
foreach ($this->paths as $path) {
$locator->fillCache($path);
}
// Check if any of the imported files have been changed.
$imports = isset($content['imports']) ? $content['imports'] : [];
if (!$imports) {
return $this->findImport($in) !== null;
}
foreach ($imports as $resource => $timestamp) {
$import = $locator->isStream($resource) ? $locator->findResource($resource) : realpath($resource);
if (!$import || filemtime($import) != $timestamp) {
return true;
}
}
return false;
}
public function setVariables(array $variables)
{
$this->variables = array_filter($variables);
foreach($this->variables as &$value) {
// Check variable against colors and units.
/* Test regex against these:
* Should only match the ones marked as +
* - family=Aguafina+Script
* - #zzzzzz
* - #fff
* + #ffaaff
* + 33em
* + 0.5px
* - 50 rem
* - rgba(323,323,2323)
* + rgba(125,200,100,0.3)
* - rgb(120,12,12)
*/
if (preg_match('/(^(#([a-fA-F0-9]{6})|(rgba\(\s*(0|[1-9]\d?|1\d\d?|2[0-4]\d|25[0-5])\s*,\s*(0|[1-9]\d?|1\d\d?|2[0-4]\d|25[0-5])\s*,\s*(0|[1-9]\d?|1\d\d?|2[0-4]\d|25[0-5])\s*,\s*((0.[0-9]+)|[01])\s*\)))|(\d+(\.\d+){0,1}(rem|em|ex|ch|vw|vh|vmin|vmax|%|px|cm|mm|in|pt|pc))$)/i', $value)) {
continue;
}
// Check variable against predefined color names (we use Leafo SCSS Color class to do that).
if (isset(Colors::$cssColors[strtolower($value)])) {
continue;
}
// All the unknown values need to be quoted.
$value = "'{$value}'";
}
return $this;
}
public function getVariables()
{
return $this->variables;
}
public function reset()
{
$this->compiler->reset();
return $this;
}
/**
* @param string $url
* @return null|string
*/
abstract public function findImport($url);
protected function checksum($len = 36)
{
static $checksum;
if (!$checksum) {
$checksum = md5(GANTRY5_VERSION . ' ' . Gantry::instance()['theme']->version);
}
return '/*' . substr($checksum, 0, $len - 4) . "*/";
}
protected function createMeta($out, $md5)
{
$gantry = Gantry::instance();
if ($this->production) {
return;
}
/** @var UniformResourceLocator $locator */
$locator = $gantry['locator'];
$uri = basename($out);
$metaFile = PhpFile::instance($locator->findResource("gantry-cache://theme/scss/{$uri}.php", true, true));
$data = [
'file' => $out,
'timestamp' => filemtime($locator->findResource($out)),
'md5' => $md5,
'variables' => $this->getVariables(),
'imports' => $this->compiler->getParsedFiles()
];
// Attempt to lock the file for writing.
try {
$metaFile->lock(false);
} catch (\Exception $e) {
// Another process has locked the file; we will check this in a bit.
}
// If meta file wasn't already locked by another process, save it.
if ($metaFile->locked() !== false) {
$metaFile->save($data);
$metaFile->unlock();
}
$metaFile->free();
}
}