/**
* Initiate the download request, create a new instance with given parameters.
*
* @param string $documentHash The documentHash generated using {@link SecureDownloader::generateHash()}
* @param string $accessKey A key (hash is nice) that is compared to the one used set when the document hash has been generated.
*
* @return DownloadRequest
*/
private function initiateDownloadRequest($documentHash, $accessKey)
{
$cacheItem = $this->stash->getItem($this->stashPrefixKey . '/' . $documentHash);
// A voir la méthode d'invalidation
$downloadRequest = $cacheItem->get(Invalidation::NONE);
if ($cacheItem->isMiss()) {
// Delete stash item
$cacheItem->clear();
// Mark downloadRequest as expired (documentHash expired)
$downloadRequest = new DownloadRequest();
$downloadRequest->addError(new DownloadRequestError(ErrorCode::DOCUMENT_EXPIRED, 'Document hash expired / missing.'));
return $downloadRequest;
}
// Assume that we have a DownloadRequest object
if (!$downloadRequest instanceof DownloadRequest) {
$downloadRequest = new DownloadRequest();
$downloadRequest->addError(new DownloadRequestError(ErrorCode::INVALID_STORED_DOCUMENT_TYPE, 'Given Hash doesn\'t match a DownloadRequest object.'));
return $downloadRequest;
}
/** @var DownloadRequest $downloadRequest Here we are sure it is */
// Check the authorization to access the file
if (!$downloadRequest->isAccessKeyValid($accessKey)) {
$downloadRequest->addError(new DownloadRequestError(ErrorCode::INVALID_ACCESS_KEY, 'Invalid access key provided for given document hash.'));
return $downloadRequest;
}
return $downloadRequest;
}
/**
* Return the given document filePath
*
* @return string
*/
public function getDocumentPath()
{
return $this->downloadRequest->getFilePath();
}
