/**
* @param core_kernel_classes_Resource $item the item to pack
* @param string $lang
* @param Item $qtiItem
* @param \oat\oatbox\filesystem\Directory $directory
* @return ItemPack $itemPack
* @throws common_Exception
*/
public function packQtiItem($item, $lang, $qtiItem, Directory $directory)
{
//use the QtiParser to transform the QTI XML into an assoc array representation
try {
//build the ItemPack from the parsed data
if ($this->replaceXinclude) {
$resolver = new ItemMediaResolver($item, $lang);
$xincludeLoader = new XIncludeLoader($qtiItem, $resolver);
$xincludeLoader->load(true);
}
$itemPack = new ItemPack(self::$itemType, $qtiItem->toArray());
$itemPack->setAssetEncoders($this->getAssetEncoders());
$assetParser = new AssetParser($qtiItem, $directory);
$assetParser->setDeepParsing($this->isNestedResourcesInclusion());
$assetParser->setGetXinclude(!$this->replaceXinclude);
$storageDirectory = new \tao_models_classes_service_StorageDirectory($item->getUri(), $directory->getFileSystemId(), $directory->getPrefix() . '/' . $lang);
$storageDirectory->setServiceLocator($directory->getServiceLocator());
foreach ($assetParser->extract($itemPack) as $type => $assets) {
$resolver = new ItemMediaResolver($item, $lang);
foreach ($assets as &$asset) {
$mediaAsset = $resolver->resolve($asset);
$mediaSource = $mediaAsset->getMediaSource();
$asset = $mediaSource->getBaseName($mediaAsset->getMediaIdentifier());
}
$itemPack->setAssets($type, $assets, $storageDirectory);
}
} catch (common_Exception $e) {
throw new common_Exception('Unable to pack item ' . $item->getUri() . ' : ' . $e->getMessage());
}
return $itemPack;
}
/**
* Store a file referenced by $qtiResource into the final $testContent folder. If the path provided
* by $qtiResource contains sub-directories, they will be created before copying the file (even
* if $copy = false).
*
* @param Directory $testContent The pointer to the TAO Test Content folder.
* @param oat\taoQtiItem\model\qti\Resource|string $qtiResource The QTI resource to be copied into $testContent. If given as a string, it must be the relative (to the IMS QTI Package) path to the resource file.
* @param string $origin The path to the directory (root folder of extracted IMS QTI package) containing the QTI resource to be copied.
* @param boolean $copy If set to false, the file will not be actually copied.
* @param string $rename A new filename e.g. 'file.css' to be used at storage time.
* @return string The path were the file was copied/has to be copied (depending on the $copy argument).
* @throws InvalidArgumentException If one of the above arguments is invalid.
* @throws common_Exception If the copy fails.
*/
public static function storeQtiResource(Directory $testContent, $qtiResource, $origin, $copy = true, $rename = '')
{
$fss = ServiceManager::getServiceManager()->get(FileSystemService::SERVICE_ID);
$fs = $fss->getFileSystem($testContent->getFileSystem()->getId());
$contentPath = $testContent->getPrefix();
$ds = DIRECTORY_SEPARATOR;
$contentPath = rtrim($contentPath, $ds);
if ($qtiResource instanceof Resource) {
$filePath = $qtiResource->getFile();
} else {
if (is_string($qtiResource) === true) {
$filePath = $qtiResource;
} else {
throw new InvalidArgumentException("The 'qtiResource' argument must be a string or a taoQTI_models_classes_QTI_Resource object.");
}
}
$resourcePathinfo = pathinfo($filePath);
if (empty($resourcePathinfo['dirname']) === false && $resourcePathinfo['dirname'] !== '.') {
// The resource file is not at the root of the archive but in a sub-folder.
// Let's copy it in the same way into the Test Content folder.
$breadCrumb = $contentPath . $ds . str_replace('/', $ds, $resourcePathinfo['dirname']);
$breadCrumb = rtrim($breadCrumb, $ds);
$finalName = empty($rename) === true ? $resourcePathinfo['filename'] . '.' . $resourcePathinfo['extension'] : $rename;
$finalPath = $breadCrumb . $ds . $finalName;
} else {
// The resource file is at the root of the archive.
// Overwrite template test.xml (created by self::createContent() method above) file with the new one.
$finalName = empty($rename) === true ? $resourcePathinfo['filename'] . '.' . $resourcePathinfo['extension'] : $rename;
$finalPath = $contentPath . $ds . $finalName;
}
if ($copy === true) {
$origin = str_replace('/', $ds, $origin);
$origin = rtrim($origin, $ds);
$sourcePath = $origin . $ds . str_replace('/', $ds, $filePath);
if (is_readable($sourcePath) === false) {
throw new common_Exception("An error occured while copying the QTI resource from '{$sourcePath}' to '{$finalPath}'.");
}
$fh = fopen($sourcePath, 'r');
$success = $fs->writeStream($finalPath, $fh);
fclose($fh);
if (!$success) {
throw new common_Exception("An error occured while copying the QTI resource from '{$sourcePath}' to '{$finalPath}'.");
}
}
return $finalPath;
}
/**
* Lookup and extract assets from a stylesheet element
* @param Element $element the stylesheet element
*/
private function extractStyleSheet(Element $element)
{
if ($element instanceof StyleSheet) {
$href = $element->attr('href');
$this->addAsset('css', $href);
$parsedUrl = parse_url($href);
if ($this->isDeepParsing() && array_key_exists('path', $parsedUrl) && !array_key_exists('host', $parsedUrl)) {
$file = $this->directory->getFile($parsedUrl['path']);
if ($file->exists()) {
$this->loadStyleSheetAsset($file->read());
}
}
}
}
/**
*
* @param $id
* @return \oat\oatbox\filesystem\Directory
*/
public function getDirectory($id)
{
$directory = new Directory($id, '');
$directory->setServiceLocator($this->getServiceLocator());
return $directory;
}
/**
* @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;
}
/**
* @deprecated Should not be called
*
* @return Filesystem
*/
public function getFlySystem()
{
return parent::getFilesystem();
}
