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<?php
namespace Kanboard\Core\ObjectStorage;
/**
* Local File Storage
*
* @package ObjectStorage
* @author Frederic Guillot
*/
class FileStorage implements ObjectStorageInterface
{
/**
* Base path
*
* @access private
* @var string
*/
private $path = '';
/**
* Constructor
*
* @access public
* @param string $path
*/
public function __construct($path)
{
$this->path = $path;
}
/**
* Fetch object contents
*
* @access public
* @throws ObjectStorageException
* @param string $key
* @return string
*/
public function get($key)
{
$filename = $this->path.DIRECTORY_SEPARATOR.$key;
if (! file_exists($filename)) {
throw new ObjectStorageException('File not found: '.$filename);
}
return file_get_contents($filename);
}
/**
* Save object
*
* @access public
* @throws ObjectStorageException
* @param string $key
* @param string $blob
*/
public function put($key, &$blob)
{
$this->createFolder($key);
if (file_put_contents($this->path.DIRECTORY_SEPARATOR.$key, $blob) === false) {
throw new ObjectStorageException('Unable to write the file: '.$this->path.DIRECTORY_SEPARATOR.$key);
}
}
/**
* Output directly object content
*
* @access public
* @throws ObjectStorageException
* @param string $key
*/
public function output($key)
{
$filename = $this->path.DIRECTORY_SEPARATOR.$key;
if (! file_exists($filename)) {
throw new ObjectStorageException('File not found: '.$filename);
}
readfile($filename);
}
/**
* Move local file to object storage
*
* @access public
* @throws ObjectStorageException
* @param string $src_filename
* @param string $key
* @return boolean
*/
public function moveFile($src_filename, $key)
{
$this->createFolder($key);
$dst_filename = $this->path.DIRECTORY_SEPARATOR.$key;
if (! rename($src_filename, $dst_filename)) {
throw new ObjectStorageException('Unable to move the file: '.$src_filename.' to '.$dst_filename);
}
return true;
}
/**
* Move uploaded file to object storage
*
* @access public
* @param string $filename
* @param string $key
* @return boolean
*/
public function moveUploadedFile($filename, $key)
{
$this->createFolder($key);
return move_uploaded_file($filename, $this->path.DIRECTORY_SEPARATOR.$key);
}
/**
* Remove object
*
* @access public
* @param string $key
* @return boolean
*/
public function remove($key)
{
$filename = $this->path.DIRECTORY_SEPARATOR.$key;
$result = false;
if (file_exists($filename)) {
$result = unlink($filename);
// Remove parent folder if empty
$parentFolder = dirname($filename);
$files = glob($parentFolder.DIRECTORY_SEPARATOR.'*');
if ($files !== false && is_dir($parentFolder) && count($files) === 0) {
rmdir($parentFolder);
}
}
return $result;
}
/**
* Create object folder
*
* @access private
* @throws ObjectStorageException
* @param string $key
*/
private function createFolder($key)
{
$folder = strpos($key, DIRECTORY_SEPARATOR) !== false ? $this->path.DIRECTORY_SEPARATOR.dirname($key) : $this->path;
if (! is_dir($folder) && ! mkdir($folder, 0755, true)) {
throw new ObjectStorageException('Unable to create folder: '.$folder);
}
}
}
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