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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Robin Appelman <robin@icewind.nl>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Files\SimpleFS;
use Icewind\Streams\CallbackWrapper;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\Files\SimpleFS\ISimpleFile;
class NewSimpleFile implements ISimpleFile {
private $parentFolder;
private $name;
/** @var File|null */
private $file = null;
/**
* File constructor.
*
* @param File $file
*/
public function __construct(Folder $parentFolder, string $name) {
$this->parentFolder = $parentFolder;
$this->name = $name;
}
/**
* Get the name
*
* @return string
*/
public function getName() {
return $this->name;
}
/**
* Get the size in bytes
*
* @return int
*/
public function getSize() {
if ($this->file) {
return $this->file->getSize();
} else {
return 0;
}
}
/**
* Get the ETag
*
* @return string
*/
public function getETag() {
if ($this->file) {
return $this->file->getEtag();
} else {
return '';
}
}
/**
* Get the last modification time
*
* @return int
*/
public function getMTime() {
if ($this->file) {
return $this->file->getMTime();
} else {
return time();
}
}
/**
* Get the content
*
* @return string
* @throws NotFoundException
* @throws NotPermittedException
*/
public function getContent() {
if ($this->file) {
$result = $this->file->getContent();
if ($result === false) {
$this->checkFile();
}
return $result;
} else {
return '';
}
}
/**
* Overwrite the file
*
* @param string|resource $data
* @throws NotPermittedException
* @throws NotFoundException
*/
public function putContent($data) {
try {
if ($this->file) {
$this->file->putContent($data);
} else {
$this->file = $this->parentFolder->newFile($this->name, $data);
}
} catch (NotFoundException $e) {
$this->checkFile();
}
}
/**
* Sometimes there are some issues with the AppData. Most of them are from
* user error. But we should handle them gracefull anyway.
*
* If for some reason the current file can't be found. We remove it.
* Then traverse up and check all folders if they exists. This so that the
* next request will have a valid appdata structure again.
*
* @throws NotFoundException
*/
private function checkFile() {
$cur = $this->file;
while ($cur->stat() === false) {
$parent = $cur->getParent();
try {
$cur->delete();
} catch (NotFoundException $e) {
// Just continue then
}
$cur = $parent;
}
if ($cur !== $this->file) {
throw new NotFoundException('File does not exist');
}
}
/**
* Delete the file
*
* @throws NotPermittedException
*/
public function delete() {
if ($this->file) {
$this->file->delete();
}
}
/**
* Get the MimeType
*
* @return string
*/
public function getMimeType() {
if ($this->file) {
return $this->file->getMimeType();
} else {
return 'text/plain';
}
}
/**
* {@inheritDoc}
*/
public function getExtension(): string {
if ($this->file) {
return $this->file->getExtension();
} else {
return \pathinfo($this->name, PATHINFO_EXTENSION);
}
}
/**
* Open the file as stream for reading, resulting resource can be operated as stream like the result from php's own fopen
*
* @return resource
* @throws \OCP\Files\NotPermittedException
* @since 14.0.0
*/
public function read() {
if ($this->file) {
return $this->file->fopen('r');
} else {
return fopen('php://temp', 'r');
}
}
/**
* Open the file as stream for writing, resulting resource can be operated as stream like the result from php's own fopen
*
* @return resource|bool
* @throws \OCP\Files\NotPermittedException
* @since 14.0.0
*/
public function write() {
if ($this->file) {
return $this->file->fopen('w');
} else {
$source = fopen('php://temp', 'w+');
return CallbackWrapper::wrap($source, null, null, null, null, function () use ($source) {
rewind($source);
$this->putContent($source);
});
}
}
}
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