73 lines
2.5 KiB
PHP
73 lines
2.5 KiB
PHP
<?php
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/**
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* ownCloud - files_texteditor
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*
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* @author Tom Needham
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* @copyright 2011 Tom Needham contact@tomneedham.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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// Init owncloud
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require_once('../../../lib/base.php');
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// Check if we are a user
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OC_JSON::checkLoggedIn();
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// Save the file data
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$filecontents = htmlspecialchars_decode($_POST['filecontents']);
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$file = $_POST['file'];
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$dir = $_POST['dir'];
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$path = $dir.'/'.$file;
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$force = isset($_POST['force']) ? $_POST['force'] : false;
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$sessionname = sha1('oc_file_hash_'.$path);
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function do_save($path,$filecontents){
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$sessionname = md5('oc_file_hash_'.$path);
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OC_Filesystem::update_session_file_hash($sessionname,sha1(htmlspecialchars($filecontents)));
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OC_Filesystem::file_put_contents($path, $filecontents);
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}
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// Check if file modified whilst editing?
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if(isset($_SESSION[$sessionname])){
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if(!empty($_SESSION[$sessionname])){
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// Compare to current hash of file.
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$savedfilecontents = htmlspecialchars(OC_Filesystem::file_get_contents($path));
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$hash = md5($savedfilecontents);
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$originalhash = $_SESSION[$sessionname];
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// Compare with hash taken when file was opened
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if($hash != $originalhash){
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// Someone has played with the file while you were editing
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// Force save?
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if($force){
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do_save($path, $filecontents);
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OC_JSON::success();
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} else {
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// No force
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OC_JSON::error(array('data' => array( 'message' => $l10n->t('The file has been edited since you opened it. Overwrite the file?'))));
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}
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} else {
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// No body has edited it whilst you were, so save the file
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// Update the session hash.
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do_save($path,$filecontents);
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OC_JSON::success();
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}
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}
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} else {
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// No session value set for soem reason, just save the file.
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do_save($path,$filecontents);
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OC_JSON::success();
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} |