protected function _image($val)
{
if (mb_strpos($val, "url") === false) {
$path = "none";
//Don't resolve no image -> otherwise would prefix path and no longer recognize as none
} else {
$val = preg_replace("/url\\(['\"]?([^'\")]+)['\"]?\\)/", "\\1", trim($val));
// Resolve the url now in the context of the current stylesheet
$parsed_url = explode_url_parser($val);
if ($parsed_url["protocol"] == "" && $this->_stylesheet->get_protocol() == "") {
if ($parsed_url["path"][0] === '/' || $parsed_url["path"][0] === '\\') {
$path = $_SERVER["DOCUMENT_ROOT"] . '/';
} else {
$path = $this->_stylesheet->get_base_path();
}
$path .= $parsed_url["path"] . $parsed_url["file"];
$path = realpath($path);
// If realpath returns FALSE then specifically state that there is no background image
if (!$path) {
$path = 'none';
}
} else {
$path = build_url_parser($this->_stylesheet->get_protocol(), $this->_stylesheet->get_host(), $this->_stylesheet->get_base_path(), $val);
}
}
return $path;
}
/**
* Builds the {@link FrameParser_Tree}, loads any CSS and applies the styles to
* the {@link FrameParser_Tree}
*/
protected function _process_html($filter = '*')
{
$this->save_locale();
$this->_tree->build_tree($filter);
$this->_css->load_css_file(StyleParsersheet::DEFAULT_STYLESHEET);
$acceptedmedia = StyleParsersheet::$ACCEPTED_GENERIC_MEDIA_TYPES;
if (defined("PARSERHTML_DEFAULT_MEDIA_TYPE")) {
$acceptedmedia[] = PARSERHTML_DEFAULT_MEDIA_TYPE;
} else {
$acceptedmedia[] = StyleParsersheet::$ACCEPTED_DEFAULT_MEDIA_TYPE;
}
// load <link rel="STYLESHEET" ... /> tags
$links = $this->_xml->getElementsByTagName("link");
foreach ($links as $link) {
if (mb_strtolower($link->getAttribute("rel")) === "stylesheet" || mb_strtolower($link->getAttribute("type")) === "text/css") {
//Check if the css file is for an accepted media type
//media not given then always valid
$formedialist = preg_split("/[\\s\n,]/", $link->getAttribute("media"), -1, PREG_SPLIT_NO_EMPTY);
if (count($formedialist) > 0) {
$accept = false;
foreach ($formedialist as $type) {
if (in_array(mb_strtolower(trim($type)), $acceptedmedia)) {
$accept = true;
break;
}
}
if (!$accept) {
//found at least one mediatype, but none of the accepted ones
//Skip this css file.
continue;
}
}
$url = $link->getAttribute("href");
$url = build_url_parser($this->_protocol, $this->_base_host, $this->_base_path, $url);
$this->_css->load_css_file($url);
}
}
// load <style> tags
$styles = $this->_xml->getElementsByTagName("style");
foreach ($styles as $style) {
// Accept all <style> tags by default (note this is contrary to W3C
// HTML 4.0 spec:
// http://www.w3.org/TR/REC-html40/present/styles.html#adef-media
// which states that the default media type is 'screen'
if ($style->hasAttributes() && ($media = $style->getAttribute("media")) && !in_array($media, $acceptedmedia)) {
continue;
}
$css = "";
if ($style->hasChildNodes()) {
$child = $style->firstChild;
while ($child) {
$css .= $child->nodeValue;
// Handle <style><!-- blah --></style>
$child = $child->nextSibling;
}
} else {
$css = $style->nodeValue;
}
// Set the base path of the StyleParsersheet to that of the file being processed
$this->_css->set_protocol($this->_protocol);
$this->_css->set_host($this->_base_host);
$this->_css->set_base_path($this->_base_path);
$this->_css->load_css($css);
}
$this->restore_locale();
}
