nextcloud/apps/files/ajax/newfile.php

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<?php
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/**
* @author Andreas Fischer <bantu@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Georg Ehrke <georg@owncloud.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
* @author Vincent Petry <pvince81@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/>
*
*/
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// Init owncloud
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global $eventSource;
\OCP\JSON::checkLoggedIn();
\OCP\JSON::callCheck();
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\OC::$server->getSession()->close();
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// Get the params
$dir = isset( $_REQUEST['dir'] ) ? '/'.trim((string)$_REQUEST['dir'], '/\\') : '';
$filename = isset( $_REQUEST['filename'] ) ? trim((string)$_REQUEST['filename'], '/\\') : '';
$content = isset( $_REQUEST['content'] ) ? (string)$_REQUEST['content'] : '';
$source = isset( $_REQUEST['source'] ) ? trim((string)$_REQUEST['source'], '/\\') : '';
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if($source) {
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$eventSource = \OC::$server->createEventSource();
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}
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function progress($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
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static $filesize = 0;
static $lastsize = 0;
global $eventSource;
switch($notification_code) {
case STREAM_NOTIFY_FILE_SIZE_IS:
$filesize = $bytes_max;
break;
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case STREAM_NOTIFY_PROGRESS:
if ($bytes_transferred > 0) {
if (!isset($filesize) || $filesize === 0) {
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} else {
$progress = (int)(($bytes_transferred/$filesize)*100);
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if($progress>$lastsize) { //limit the number or messages send
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$eventSource->send('progress', $progress);
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}
$lastsize=$progress;
}
}
break;
}
}
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$l10n = \OC::$server->getL10N('files');
$result = array(
'success' => false,
'data' => NULL
);
$trimmedFileName = trim($filename);
if($trimmedFileName === '') {
$result['data'] = array('message' => (string)$l10n->t('File name cannot be empty.'));
OCP\JSON::error($result);
exit();
}
if($trimmedFileName === '.' || $trimmedFileName === '..') {
$result['data'] = array('message' => (string)$l10n->t('"%s" is an invalid file name.', $trimmedFileName));
OCP\JSON::error($result);
exit();
}
if(!OCP\Util::isValidFileName($filename)) {
$result['data'] = array('message' => (string)$l10n->t("Invalid name, '\\', '/', '<', '>', ':', '\"', '|', '?' and '*' are not allowed."));
OCP\JSON::error($result);
exit();
}
if (!\OC\Files\Filesystem::file_exists($dir . '/')) {
$result['data'] = array('message' => (string)$l10n->t(
'The target folder has been moved or deleted.'),
'code' => 'targetnotfound'
);
OCP\JSON::error($result);
exit();
}
$target = $dir.'/'.$filename;
if (\OC\Files\Filesystem::file_exists($target)) {
$result['data'] = array('message' => (string)$l10n->t(
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'The name %s is already used in the folder %s. Please choose a different name.',
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array($filename, $dir))
);
OCP\JSON::error($result);
exit();
}
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if($source) {
$httpHelper = \OC::$server->getHTTPHelper();
if(!$httpHelper->isHTTPURL($source)) {
OCP\JSON::error(array('data' => array('message' => $l10n->t('Not a valid source'))));
exit();
}
if (!ini_get('allow_url_fopen')) {
$eventSource->send('error', array('message' => $l10n->t('Server is not allowed to open URLs, please check the server configuration')));
$eventSource->close();
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exit();
}
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$source = $httpHelper->getFinalLocationOfURL($source);
$ctx = stream_context_create(\OC::$server->getHTTPHelper()->getDefaultContextArray(), array('notification' =>'progress'));
$sourceStream=@fopen($source, 'rb', false, $ctx);
$result = 0;
if (is_resource($sourceStream)) {
$meta = stream_get_meta_data($sourceStream);
if (isset($meta['wrapper_data']) && is_array($meta['wrapper_data'])) {
//check stream size
$storageStats = \OCA\Files\Helper::buildFileStorageStatistics($dir);
$freeSpace = $storageStats['freeSpace'];
foreach($meta['wrapper_data'] as $header) {
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if (strpos($header, ':') === false){
continue;
}
list($name, $value) = explode(':', $header);
if ('content-length' === strtolower(trim($name))) {
$length = (int) trim($value);
if ($length > $freeSpace) {
$delta = $length - $freeSpace;
$humanDelta = OCP\Util::humanFileSize($delta);
$eventSource->send('error', array('message' => (string)$l10n->t('The file exceeds your quota by %s', array($humanDelta))));
$eventSource->close();
fclose($sourceStream);
exit();
}
}
}
}
$result = \OC\Files\Filesystem::file_put_contents($target, $sourceStream);
}
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if($result) {
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$meta = \OC\Files\Filesystem::getFileInfo($target);
$data = \OCA\Files\Helper::formatFileInfo($meta);
$eventSource->send('success', $data);
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} else {
$eventSource->send('error', array('message' => $l10n->t('Error while downloading %s to %s', array($source, $target))));
}
if (is_resource($sourceStream)) {
fclose($sourceStream);
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}
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$eventSource->close();
exit();
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} else {
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$success = false;
if (!$content) {
$templateManager = OC_Helper::getFileTemplateManager();
$mimeType = OC_Helper::getMimetypeDetector()->detectPath($target);
$content = $templateManager->getTemplate($mimeType);
}
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if($content) {
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$success = \OC\Files\Filesystem::file_put_contents($target, $content);
} else {
$success = \OC\Files\Filesystem::touch($target);
}
if($success) {
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$meta = \OC\Files\Filesystem::getFileInfo($target);
OCP\JSON::success(array('data' => \OCA\Files\Helper::formatFileInfo($meta)));
exit();
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}
}
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OCP\JSON::error(array('data' => array( 'message' => $l10n->t('Error when creating the file') )));