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<?php
/**
* @author Björn Schießle <schiessle@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\FilesTextEditor\Controller;
use OC\HintException;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataResponse;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\ForbiddenException;
use OCP\IL10N;
use OCP\ILogger;
use OCP\IRequest;
use OCP\Lock\LockedException;
class FileHandlingController extends Controller{
/** @var IL10N */
private $l;
/** @var ILogger */
private $logger;
/** @var Folder */
private $userFolder;
/**
* @NoAdminRequired
*
* @param string $AppName
* @param IRequest $request
* @param IL10N $l10n
* @param ILogger $logger
* @param Folder $userFolder
*/
public function __construct($AppName,
IRequest $request,
IL10N $l10n,
ILogger $logger,
Folder $userFolder) {
parent::__construct($AppName, $request);
$this->l = $l10n;
$this->logger = $logger;
$this->userFolder = $userFolder;
}
/**
* load text file
*
* @NoAdminRequired
*
* @param string $dir
* @param string $filename
* @return DataResponse
*/
public function load($dir, $filename) {
try {
if (!empty($filename)) {
$path = $dir . '/' . $filename;
/** @var File $file */
$file = $this->userFolder->get($path);
if ($file instanceof Folder) {
return new DataResponse(['message' => $this->l->t('You can not open a folder')], Http::STATUS_BAD_REQUEST);
}
// default of 4MB
$maxSize = 4194304;
if ($file->getSize() > $maxSize) {
return new DataResponse(['message' => (string)$this->l->t('This file is too big to be opened. Please download the file instead.')], Http::STATUS_BAD_REQUEST);
}
$fileContents = $file->getContent();
if ($fileContents !== false) {
$writable = $file->isUpdateable();
$mime = $file->getMimeType();
$mTime = $file->getMTime();
$encoding = mb_detect_encoding($fileContents . 'a', 'UTF-8, WINDOWS-1252, ISO-8859-15, ISO-8859-1, ASCII', true);
if ($encoding === '') {
// set default encoding if it couldn't be detected
$encoding = 'ISO-8859-15';
}
$fileContents = iconv($encoding, 'UTF-8', $fileContents);
return new DataResponse(
[
'filecontents' => $fileContents,
'writeable' => $writable,
'mime' => $mime,
'mtime' => $mTime
],
Http::STATUS_OK
);
} else {
return new DataResponse(['message' => (string)$this->l->t('Cannot read the file.')], Http::STATUS_BAD_REQUEST);
}
} else {
return new DataResponse(['message' => (string)$this->l->t('Invalid file path supplied.')], Http::STATUS_BAD_REQUEST);
}
} catch (LockedException $e) {
$message = (string) $this->l->t('The file is locked.');
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
} catch (ForbiddenException $e) {
return new DataResponse(['message' => $e->getMessage()], Http::STATUS_BAD_REQUEST);
} catch (HintException $e) {
$message = (string)$e->getHint();
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
} catch (\Exception $e) {
$message = (string)$this->l->t('An internal server error occurred.');
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
}
}
/**
* save text file
*
* @NoAdminRequired
*
* @param string $path
* @param string $filecontents
* @param integer $mtime
* @return DataResponse
*/
public function save($path, $filecontents, $mtime) {
try {
if($path !== '' && (is_int($mtime) && $mtime > 0)) {
/** @var File $file */
$file = $this->userFolder->get($path);
if ($file instanceof Folder) {
return new DataResponse(['message' => $this->l->t('You can not write to a folder')], Http::STATUS_BAD_REQUEST);
}
// Get file mtime
$filemtime = $file->getMTime();
if($mtime !== $filemtime) {
// Then the file has changed since opening
$this->logger->error('File: ' . $path . ' modified since opening.',
['app' => 'files_texteditor']);
return new DataResponse(
['message' => $this->l->t('Cannot save file as it has been modified since opening')],
Http::STATUS_BAD_REQUEST);
} else {
// File same as when opened, save file
if($file->isUpdateable()) {
$filecontents = iconv(mb_detect_encoding($filecontents), 'UTF-8', $filecontents);
try {
$file->putContent($filecontents);
} catch (LockedException $e) {
$message = (string) $this->l->t('The file is locked.');
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
} catch (ForbiddenException $e) {
return new DataResponse(['message' => $e->getMessage()], Http::STATUS_BAD_REQUEST);
}
// Clear statcache
clearstatcache();
// Get new mtime
$newmtime = $file->getMTime();
$newsize = $file->getSize();
return new DataResponse(['mtime' => $newmtime, 'size' => $newsize], Http::STATUS_OK);
} else {
// Not writeable!
$this->logger->error('User does not have permission to write to file: ' . $path,
['app' => 'files_texteditor']);
return new DataResponse([ 'message' => $this->l->t('Insufficient permissions')],
Http::STATUS_BAD_REQUEST);
}
}
} else if ($path === '') {
$this->logger->error('No file path supplied');
return new DataResponse(['message' => $this->l->t('File path not supplied')], Http::STATUS_BAD_REQUEST);
} else {
$this->logger->error('No file mtime supplied', ['app' => 'files_texteditor']);
return new DataResponse(['message' => $this->l->t('File mtime not supplied')], Http::STATUS_BAD_REQUEST);
}
} catch (HintException $e) {
$message = (string)$e->getHint();
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
} catch (\Exception $e) {
$message = (string)$this->l->t('An internal server error occurred.');
return new DataResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
}
}
}