/**
* Perform the query on Document
*
* @param string $expression CSS selector or XPath query
* @param Document $document Document to query
* @param string $type The type of $expression
* @return NodeList
*/
public static function execute($expression, Document $document, $type = self::TYPE_XPATH)
{
// Expression check
if ($type === static::TYPE_CSS) {
$expression = static::cssToXpath($expression);
}
$xpath = new DOMXPath($document->getDomDocument());
$xpathNamespaces = $document->getXpathNamespaces();
foreach ($xpathNamespaces as $prefix => $namespaceUri) {
$xpath->registerNamespace($prefix, $namespaceUri);
}
if ($xpathPhpfunctions = $document->getXpathPhpFunctions()) {
$xpath->registerNamespace('php', 'http://php.net/xpath');
$xpathPhpfunctions === true ? $xpath->registerPHPFunctions() : $xpath->registerPHPFunctions($xpathPhpfunctions);
}
$nodeList = $xpath->queryWithErrorException($expression);
return new NodeList($nodeList);
}
/**
* Parse if the Redi xml snippet contains Redi urls.
*
* @param DOMDocument $xml Loaded xml document
*
* @return array Get back Redi direct link to sources containing title, URL and
* service_type
*/
protected function parseRediOpenURLs($xml)
{
$retval = [];
$xpath = new DOMXPath($xml);
$ezbResultsNodesText = $xpath->query("//div[@class='t_ezb_result']/p");
$ezbResultsNodesURL = $xpath->query("//div[@class='t_ezb_result']/p/span[@class='t_link']/a");
if ($ezbResultsNodesText->length == $ezbResultsNodesURL->length) {
for ($i = 0; $i < $ezbResultsNodesText->length; $i++) {
$accessClass = 'unknown';
$accessClassExpressions = ["denied" => "//div[@class='t_ezb_result'][" . ($i + 1) . "]/p/span[@class='t_ezb_red']", "limited" => "//div[@class='t_ezb_result'][" . ($i + 1) . "]/p/span[@class='t_ezb_yellow']", "open" => "//div[@class='t_ezb_result'][" . ($i + 1) . "]/p/span[@class='t_ezb_green']"];
// $i+1 because XPath-element-counting starts with 1
foreach ($accessClassExpressions as $key => $value) {
if ($xpath->evaluate("count({$value})") == 1) {
$accessClass = $key;
}
}
$itemInfo = '';
$expression = "//div[@class='t_ezb_result'][" . ($i + 1) . "]/p/sup";
if ($xpath->evaluate("count({$expression})") == 1) {
$itemInfo = $this->parseRediInfo($xml, $xpath->query($expression)->item(0)->textContent);
}
$retval[] = ['title' => $ezbResultsNodesText->item($i)->textContent, 'href' => $ezbResultsNodesURL->item($i)->attributes->getNamedItem("href")->textContent, 'access' => $accessClass, 'coverage' => $itemInfo, 'service_type' => 'getFullTxt'];
}
}
return $retval;
}
/**
* Prepare node list
*
* @param DOMDocument $document
* @param string|array $xpathQuery
* @return array
* @throws ErrorException If query cannot be executed
*/
protected function getNodeList($document, $xpathQuery)
{
$xpath = new DOMXPath($document);
foreach ($this->xpathNamespaces as $prefix => $namespaceUri) {
$xpath->registerNamespace($prefix, $namespaceUri);
}
if ($this->xpathPhpFunctions) {
$xpath->registerNamespace("php", "http://php.net/xpath");
$this->xpathPhpFunctions === true ? $xpath->registerPHPFunctions() : $xpath->registerPHPFunctions($this->xpathPhpFunctions);
}
$xpathQuery = (string) $xpathQuery;
$nodeList = $xpath->queryWithErrorException($xpathQuery);
return $nodeList;
}
