/**
* load and parse a CSS file
*
* @param string $file
* @param int $origin
*/
function load_css_file($file, $origin = self::ORIG_AUTHOR)
{
if ($origin) {
$this->_current_origin = $origin;
}
// Prevent circular references
if (isset($this->_loaded_files[$file])) {
return;
}
$this->_loaded_files[$file] = true;
if (strpos($file, "data:") === 0) {
$parsed = Helpers::parse_data_uri($file);
$css = $parsed["data"];
} else {
$parsed_url = Helpers::explode_url($file);
list($this->_protocol, $this->_base_host, $this->_base_path, $filename) = $parsed_url;
// Fix submitted by Nick Oostveen for aliased directory support:
if ($this->_protocol == "") {
$file = $this->_base_path . $filename;
} else {
$file = Helpers::build_url($this->_protocol, $this->_base_host, $this->_base_path, $filename);
}
list($css, $http_response_header) = Helpers::getFileContent($file, $this->_dompdf->get_http_context());
$good_mime_type = true;
// See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
if (isset($http_response_header) && !$this->_dompdf->get_quirksmode()) {
foreach ($http_response_header as $_header) {
if (preg_match("@Content-Type:\\s*([\\w/]+)@i", $_header, $matches) && $matches[1] !== "text/css") {
$good_mime_type = false;
}
}
}
if (!$good_mime_type || $css == "") {
Helpers::record_warnings(E_USER_WARNING, "Unable to load css file {$file}", __FILE__, __LINE__);
return;
}
}
if (substr($file, 0, 4) == "http") {
$this->_dompdf->setHttpContext(stream_context_create(['http' => ['method' => "GET", 'header' => "Referer: " . $file]]));
}
$this->_parse_css($css);
}