/**
* @param core_kernel_classes_Resource $item
* @param string $lang
* @param Directory $publicDirectory
* @return qti\Item
* @throws taoItems_models_classes_CompilationFailedException
*/
protected function retrieveAssets(core_kernel_classes_Resource $item, $lang, Directory $publicDirectory)
{
$qtiItem = Service::singleton()->getDataItemByRdfItem($item, $lang);
$assetParser = new AssetParser($qtiItem, $publicDirectory);
$assetParser->setGetSharedLibraries(false);
$assetParser->setGetXinclude(false);
$resolver = new ItemMediaResolver($item, $lang);
$replacementList = array();
foreach ($assetParser->extract() as $type => $assets) {
foreach ($assets as $assetUrl) {
foreach (self::$BLACKLIST as $blacklist) {
if (preg_match($blacklist, $assetUrl) === 1) {
continue 2;
}
}
$mediaAsset = $resolver->resolve($assetUrl);
$mediaSource = $mediaAsset->getMediaSource();
$basename = $mediaSource->getBaseName($mediaAsset->getMediaIdentifier());
$replacement = $basename;
$count = 0;
while (in_array($replacement, $replacementList)) {
$dot = strrpos($basename, '.');
$replacement = $dot !== false ? substr($basename, 0, $dot) . '_' . $count . substr($basename, $dot) : $basename . $count;
$count++;
}
$replacementList[$assetUrl] = $replacement;
$tmpfile = $mediaSource->download($mediaAsset->getMediaIdentifier());
$fh = fopen($tmpfile, 'r');
$publicDirectory->writeStream($lang . '/' . $replacement, $fh);
fclose($fh);
unlink($tmpfile);
//$fileStream = $mediaSource->getFileStream($mediaAsset->getMediaIdentifier());
//$publicDirectory->writeStream($lang.'/'.$replacement, $fileStream);
}
}
$dom = new \DOMDocument('1.0', 'UTF-8');
if ($dom->loadXML($qtiItem->toXml()) === true) {
$xpath = new \DOMXPath($dom);
$attributeNodes = $xpath->query('//@*');
foreach ($attributeNodes as $node) {
if (isset($replacementList[$node->value])) {
$node->value = $replacementList[$node->value];
}
}
$attributeNodes = $xpath->query("//*[local-name()='entry']") ?: [];
unset($xpath);
foreach ($attributeNodes as $node) {
$node->nodeValue = strtr(htmlentities($node->nodeValue, ENT_XML1), $replacementList);
}
} else {
throw new taoItems_models_classes_CompilationFailedException('Unable to load XML');
}
$qtiParser = new Parser($dom->saveXML());
$assetRetrievedQtiItem = $qtiParser->load();
//loadxinclude
$xincludeLoader = new XIncludeLoader($assetRetrievedQtiItem, $resolver);
$xincludeLoader->load(true);
return $assetRetrievedQtiItem;
}
