/**
* Downloads the target of the given link, image or other linking element
*
* This method will search for the given matching criteria (XPath), and
* download whatever is in the href or src attribute of the given element
* @param String $match XPath to element
* @param String $filename Path to download file to
* @return Browser Returns this browser object for chaining
*/
public function download($match, $filename)
{
$e = $this->_navigator->query($match);
if (!$e || $e->length != 1) {
throw new \Exception(intval($e->length) . " elements found matching: " . $match);
}
$e = $e->item(0);
// If we don't have a linking attribute, we fail
if (!$e->hasAttribute('src') && !$e->hasAttribute('href')) {
throw new \Exception("No downloadable attribute found for element matching: " . $match);
}
// Resolve the linked resource
$url = $this->_resolveUrl($e->hasAttribute('src') ? $e->getAttribute('src') : $e->getAttribute('href'));
// Open a file handle, and download the file
$fh = fopen($filename, 'w');
$this->_curl->fetch_into_file($url, $fh);
fclose($fh);
// Chain!
return $this;
}
