/**
* Gets all the imports from the provided CSS source
* @param string $source CSS source
* @param string $baseUrl Base URL of the crawl
* @param string $preyBaseUrl Base URL of the prey
* @return array Array with the URLs of the imports as key and value
*/
private function getImageUrlsFromStyle($source, $baseUrl, $preyBaseUrl)
{
$cssMin = new CSSMin();
$source = preg_replace(CSSMin::REGEX_IMPORT, '', $source);
$source = $cssMin->minify($source, true);
$urlMatches = array();
preg_replace_callback('/url( )?\\(["\']?([^;\\\\"\')]*)(["\']?)\\)([^;\\)]*);/', function ($matches) use(&$urlMatches) {
$urlMatches[] = $matches[2];
return '';
}, $source);
$urls = array();
foreach ($urlMatches as $url) {
$url = $this->getAbsoluteUrl($url, $baseUrl, $preyBaseUrl);
$urls[$url] = $url;
}
return $urls;
}
/**
* @dataProvider providerMinify
*/
public function testMinify($expected, $source)
{
$result = CSSMin::min($source, true);
$this->assertEquals($expected, $result);
}