/**
* Runs a remote function call.
*
* @param int $storageUid The UID of the drivers storage.
* @param string $function The name of the function that should be called.
* @param array $parameters The parameters passed to the remote function.
* @return mixed The return value of the remote function.
*/
public function call($storageUid, $function, $parameters = array())
{
$parameters = base64_encode(serialize($parameters));
$hash = GeneralUtility::hmac($storageUid . $function . $parameters, 'fal_remote');
$report = array();
$url = $this->extensionConfiguration->getRemoteTypo3Url() . sprintf('?eID=fal_remote&hash=%s&storageUid=%d&function=%s¶meters=%s', $hash, (int) $storageUid, rawurlencode($function), $parameters);
$result = GeneralUtility::getUrl($url, 0, FALSE, $report);
if (!$result) {
throw new \RuntimeException('Error fetching file information for ' . $function . ': ' . $report['message']);
}
$result = json_decode($result, TRUE);
if (empty($result['success'])) {
$error = !empty($result['error']) ? ': ' . $result['error'] : '';
throw new \RuntimeException('Error fetching file information for ' . $function . $error);
}
return $result['returnValue'];
}
/**
* Returns the public URL to a file.
* For the local driver, this will always return a path relative to PATH_site.
*
* @param string $identifier
* @return string
* @throws \TYPO3\CMS\Core\Resource\Exception
*/
public function getPublicUrl($identifier)
{
$publicUrl = parent::getPublicUrl($identifier);
if (!empty($publicUrl)) {
$publicUrl = rtrim($this->extensionConfiguration->getRemoteTypo3Url(), '/') . '/' . ltrim($publicUrl, '/');
}
return $publicUrl;
}