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<?php
namespace Peopleaps\Scorm\Manager;
use Exception;
use Illuminate\Filesystem\FilesystemAdapter;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;
use Peopleaps\Scorm\Exception\StorageNotFoundException;
class ScormDisk
{
/**
* Extract zip file into destination directory.
*
* @param UploadedFile|string $file zip source
* @param string $path The path to the destination.
*
* @return bool true on success, false on failure.
*/
function unzipper($file, $target_dir)
{
$target_dir = $this->cleanPath($target_dir);
$unzipper = resolve(\ZipArchive::class);
if ($unzipper->open($file)) {
/** @var FilesystemAdapter $disk */
$disk = $this->getDisk();
for ($i = 0; $i < $unzipper->numFiles; ++$i) {
$zipEntryName = $unzipper->getNameIndex($i);
$destination = $this->join($target_dir, $this->cleanPath($zipEntryName));
if ($this->isDirectory($zipEntryName)) {
$disk->createDirectory($destination);
continue;
}
$disk->writeStream($destination, $unzipper->getStream($zipEntryName));
}
return true;
}
return false;
}
/**
* @param string $file SCORM archive uri on storage.
* @param callable $fn function run user stuff before unlink
*/
public function readScormArchive($file, callable $fn)
{
try {
if (Storage::exists($file)) {
Storage::delete($file);
}
Storage::writeStream($file, $this->getArchiveDisk()->readStream($file));
$path = Storage::path($file);
call_user_func($fn, $path);
// Clean local resources
$this->clean($file);
} catch (Exception $ex) {
Log::error($ex->getMessage());
throw new StorageNotFoundException('scorm_archive_not_found');
}
}
private function clean($file)
{
try {
Storage::delete($file);
Storage::deleteDirectory(dirname($file)); // delete temp dir
} catch (Exception $ex) {
Log::error($ex->getMessage());
}
}
/**
* @param string $directory
* @return bool
*/
public function deleteScorm($uuid)
{
$this->deleteScormArchive($uuid); // try to delete archive if exists.
return $this->deleteScormContent($uuid);
}
/**
* @param string $directory
* @return bool
*/
private function deleteScormContent($folderHashedName)
{
try {
return $this->getDisk()->deleteDirectory($folderHashedName);
} catch (Exception $ex) {
Log::error($ex->getMessage());
}
}
/**
* @param string $directory
* @return bool
*/
private function deleteScormArchive($uuid)
{
try {
return $this->getArchiveDisk()->deleteDirectory($uuid);
} catch (Exception $ex) {
Log::error($ex->getMessage());
}
}
/**
*
* @param array $paths
* @return string joined path
*/
private function join(...$paths)
{
return implode(DIRECTORY_SEPARATOR, $paths);
}
private function isDirectory($zipEntryName)
{
return substr($zipEntryName, -1) === '/';
}
private function cleanPath($path)
{
return str_replace('/', DIRECTORY_SEPARATOR, $path);
}
/**
* @return FilesystemAdapter $disk
*/
private function getDisk()
{
if (!config()->has('filesystems.disks.' . config('scorm.disk'))) {
throw new StorageNotFoundException('scorm_disk_not_define');
}
return Storage::disk(config('scorm.disk'));
}
/**
* @return FilesystemAdapter $disk
*/
private function getArchiveDisk()
{
if (!config()->has('filesystems.disks.' . config('scorm.archive'))) {
throw new StorageNotFoundException('scorm_archive_disk_not_define');
}
return Storage::disk(config('scorm.archive'));
}
}