/**
* Copy all remote resource (absolute URLs to another host) contained in a rubricBlock into a dedicated directory. Remote resources
* can be refereced by the following QTI classes/attributes:
*
* * a:href
* * object:data
* * img:src
*
* @param AssessmentTest $assessmentTest An AssessmentTest object.
* @throws taoQtiTest_models_classes_QtiTestCompilationFailedException If a remote resource cannot be retrieved.
*/
protected function copyRemoteResources(RubricBlock $rubricBlock)
{
$ds = DIRECTORY_SEPARATOR;
$tmpDir = tao_helpers_File::createTempDir();
$destPath = trim($this->getExtraPath(), $ds) . $ds . TAOQTITEST_REMOTE_FOLDER . $ds;
// Search for all class-attributes in QTI-XML that might reference a remote file.
$search = $rubricBlock->getComponentsByClassName(array('a', 'object', 'img'));
foreach ($search as $component) {
switch ($component->getQtiClassName()) {
case 'object':
$url = $component->getData();
break;
case 'img':
$url = $component->getSrc();
break;
}
if (isset($url) && !preg_match('@^' . ROOT_URL . '@', $url) && !Url::isRelative($url)) {
$tmpFile = taoItems_helpers_Deployment::retrieveFile($url, $tmpDir);
if ($tmpFile !== false) {
$pathinfo = pathinfo($tmpFile);
$handle = fopen($tmpFile, 'r');
$this->getPublicDirectory()->writeStream($destPath . $pathinfo['basename'], $handle);
fclose($handle);
unlink($tmpFile);
$newUrl = TAOQTITEST_REMOTE_FOLDER . '/' . $pathinfo['basename'];
switch ($component->getQtiClassName()) {
case 'object':
$component->setData($newUrl);
break;
case 'img':
$component->setSrc($newUrl);
break;
}
} else {
$msg = "The remote resource referenced by '{$url}' could not be retrieved.";
throw new taoQtiTest_models_classes_QtiTestCompilationFailedException($msg, $this->getResource(), taoQtiTest_models_classes_QtiTestCompilationFailedException::REMOTE_RESOURCE);
}
}
}
}
/**
* Copy all remote resource (absolute URLs to another host) contained in a rubricBlock into a dedicated directory. Remote resources
* can be refereced by the following QTI classes/attributes:
*
* * a:href
* * object:data
* * img:src
*
* @param AssessmentTest $assessmentTest An AssessmentTest object.
* @throws taoQtiTest_models_classes_QtiTestCompilationFailedException If a remote resource cannot be retrieved.
*/
protected function copyRemoteResources(RubricBlock $rubricBlock)
{
$publicCompiledDocDir = $this->getPublicDirectory()->getPath();
$ds = DIRECTORY_SEPARATOR;
$destination = $publicCompiledDocDir . trim($this->getExtraPath(), $ds) . $ds . TAOQTITEST_REMOTE_FOLDER . $ds;
// If remote directory does not exist yet, create it.
if (file_exists($destination) === false) {
mkdir($destination, 0770, true);
}
// Search for all class-attributes in QTI-XML that might reference a remote file.
$search = $rubricBlock->getComponentsByClassName(array('a', 'object', 'img'));
foreach ($search as $component) {
switch ($component->getQtiClassName()) {
case 'object':
$url = $component->getData();
break;
case 'img':
$url = $component->getSrc();
break;
}
if (isset($url) && !preg_match('@^' . ROOT_URL . '@', $url) && !Url::isRelative($url)) {
$finalDestination = taoItems_helpers_Deployment::retrieveFile($url, $destination);
$pathinfo = pathinfo($finalDestination);
if ($finalDestination !== false) {
$newUrl = TAOQTITEST_REMOTE_FOLDER . '/' . $pathinfo['basename'];
switch ($component->getQtiClassName()) {
case 'object':
$component->setData($newUrl);
break;
case 'img':
$component->setSrc($newUrl);
break;
}
} else {
$msg = "The remote resource referenced by '{$url}' could not be retrieved.";
throw new taoQtiTest_models_classes_QtiTestCompilationFailedException($msg, $this->getResource(), taoQtiTest_models_classes_QtiTestCompilationFailedException::REMOTE_RESOURCE);
}
}
}
}
