/**
* Store the document content to its origin
*/
public static function save()
{
try {
$esId = @$_SERVER['HTTP_WEBODF_SESSION_ID'];
if (!$esId) {
throw new \Exception('Session id can not be empty');
}
$memberId = @$_SERVER['HTTP_WEBODF_MEMBER_ID'];
$sessionRevision = @$_SERVER['HTTP_WEBODF_SESSION_REVISION'];
$stream = fopen('php://input', 'r');
if (!$stream) {
throw new \Exception('New content missing');
}
$content = stream_get_contents($stream);
$session = new Db_Session();
$session->load($esId);
if (!$session->hasData()) {
throw new \Exception('Session does not exist');
}
$sessionData = $session->getData();
$file = new File($sessionData['file_id']);
if (!$file->isPublicShare()) {
self::preDispatch();
} else {
self::preDispatchGuest();
}
list($view, $path) = $file->getOwnerViewAndPath();
$isWritable = $view->file_exists($path) && $view->isUpdatable($path) || $view->isCreatable($path);
if (!$isWritable) {
throw new \Exception($path . ' does not exist or is not writable for user ' . $uid);
}
$member = new Db_Member();
$members = $member->getActiveCollection($esId);
$memberIds = array_map(function ($x) {
return $x['member_id'];
}, $members);
//check if member belongs to the session
if (!in_array($memberId, $memberIds)) {
throw new \Exception($memberId . ' does not belong to session ' . $esId);
}
// Active users except current user
$memberCount = count($memberIds) - 1;
if ($view->file_exists($path)) {
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
$currentHash = sha1($view->file_get_contents($path));
\OC_FileProxy::$enabled = $proxyStatus;
if (!Helper::isVersionsEnabled() && $currentHash !== $sessionData['genesis_hash']) {
// Original file was modified externally. Save to a new one
$path = Helper::getNewFileName($view, $path, '-conflict');
}
}
if ($view->file_put_contents($path, $content)) {
// Not a last user
if ($memberCount > 0) {
// Update genesis hash to prevent conflicts
Helper::debugLog('Update hash');
$session->updateGenesisHash($esId, sha1($content));
} else {
// Last user. Kill session data
Db_Session::cleanUp($esId);
}
$view->touch($path);
}
\OCP\JSON::success();
exit;
} catch (\Exception $e) {
Helper::warnLog('Saving failed. Reason:' . $e->getMessage());
\OCP\JSON::error(array('message' => $e->getMessage()));
exit;
}
}