/**
* Start a editing session or return an existing one
* @param string $uid of the user starting a session
* @param \OCA\Documents\File $file - file object
* @return array
* @throws \Exception
*/
public static function start($uid, $file)
{
// Create a directory to store genesis
$genesis = new \OCA\Documents\Genesis($file);
$oldSession = new Session();
$oldSession->loadBy('file_id', $file->getFileId());
//If there is no existing session we need to start a new one
if (!$oldSession->hasData()) {
$newSession = new Session(array($genesis->getPath(), $genesis->getHash(), $file->getOwner(), $file->getFileId()));
if (!$newSession->insert()) {
throw new \Exception('Failed to add session into database');
}
}
$sessionData = $oldSession->loadBy('file_id', $file->getFileId())->getData();
$memberColor = \OCA\Documents\Helper::getMemberColor($uid);
$member = new \OCA\Documents\Db\Member([$sessionData['es_id'], $uid, $memberColor, time(), intval($file->isPublicShare()), $file->getToken()]);
if (!$member->insert()) {
throw new \Exception('Failed to add member into database');
}
$sessionData['member_id'] = (string) $member->getLastInsertId();
// Do we have OC_Avatar in out disposal?
if (\OC::$server->getConfig()->getSystemValue('enable_avatars', true) !== true) {
$imageUrl = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAAAAACH5BAAAAAAALAAAAAABAAEAAAICTAEAOw==';
} else {
$imageUrl = $uid;
}
$displayName = $file->isPublicShare() ? $uid . ' ' . \OCA\Documents\Db\Member::getGuestPostfix() : \OC::$server->getUserSession()->getUser()->getDisplayName($uid);
$userId = $file->isPublicShare() ? $displayName : \OC::$server->getUserSession()->getUser()->getUID();
$op = new \OCA\Documents\Db\Op();
$op->addMember($sessionData['es_id'], $sessionData['member_id'], $displayName, $userId, $memberColor, $imageUrl);
$sessionData['title'] = basename($file->getPath());
$sessionData['permissions'] = $file->getPermissions();
return $sessionData;
}
/**
* @NoAdminRequired
* @PublicPage
* @param int $memberId
* @param string $name
*/
public function rename($memberId, $name)
{
$member = new Db\Member();
$member->load($memberId);
if ($member->getEsId() && $member->getStatus() == Db\Member::MEMBER_STATUS_ACTIVE && $member->getIsGuest()) {
$guestMark = Db\Member::getGuestPostfix();
if (substr($name, -strlen($guestMark)) !== $guestMark) {
$name = $name . ' ' . $guestMark;
}
$op = new Db\Op();
$op->changeNick($member->getEsId(), $memberId, $name);
}
return array('status' => 'success');
}
/**
* Start a editing session or return an existing one
* @param string $uid of the user starting a session
* @param \OCA\Documents\File $file - file object
* @return array
* @throws \Exception
*/
public static function start($uid, $file)
{
// Create a directory to store genesis
$genesis = new \OCA\Documents\Genesis($file);
list($ownerView, $path) = $file->getOwnerViewAndPath();
$mimetype = $ownerView->getMimeType($path);
if (!Filter::isSupportedMimetype($mimetype)) {
throw new \Exception($path . ' is ' . $mimetype . ' and is not supported by Documents app');
}
$oldSession = new Session();
$oldSession->loadBy('file_id', $file->getFileId());
//If there is no existing session we need to start a new one
if (!$oldSession->hasData()) {
$newSession = new Session(array($genesis->getPath(), $genesis->getHash(), $file->getOwner(), $file->getFileId()));
if (!$newSession->insert()) {
throw new \Exception('Failed to add session into database');
}
}
$sessionData = $oldSession->loadBy('file_id', $file->getFileId())->getData();
$memberColor = \OCA\Documents\Helper::getMemberColor($uid);
$member = new \OCA\Documents\Db\Member(array($sessionData['es_id'], $uid, $memberColor, time(), intval($file->isPublicShare()), $file->getToken()));
if ($member->insert()) {
// Do we have OC_Avatar in out disposal?
if (!class_exists('\\OC_Avatar') || \OC_Config::getValue('enable_avatars', true) !== true) {
$imageUrl = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAAAAACH5BAAAAAAALAAAAAABAAEAAAICTAEAOw==';
} else {
$imageUrl = $uid;
}
$displayName = $file->isPublicShare() ? $uid . ' ' . \OCA\Documents\Db\Member::getGuestPostfix() : \OCP\User::getDisplayName($uid);
$sessionData['member_id'] = (string) $member->getLastInsertId();
$op = new \OCA\Documents\Db\Op();
$op->addMember($sessionData['es_id'], $sessionData['member_id'], $displayName, $memberColor, $imageUrl);
} else {
throw new \Exception('Failed to add member into database');
}
$sessionData['title'] = basename($path);
$sessionData['permissions'] = $ownerView->getFilePermissions($path);
return $sessionData;
}
/**
* @NoAdminRequired
* @PublicPage
* Store the document content to its origin
*/
public function save()
{
try {
$esId = $this->request->server['HTTP_WEBODF_SESSION_ID'];
if (!$esId) {
throw new \Exception('Session id can not be empty');
}
$memberId = $this->request->server['HTTP_WEBODF_MEMBER_ID'];
$currentMember = new Db\Member();
$currentMember->load($memberId);
//check if member belongs to the session
if ($esId != $currentMember->getEsId()) {
throw new \Exception($memberId . ' does not belong to session ' . $esId);
}
// Extra info for future usage
// $sessionRevision = $this->request->server['HTTP_WEBODF_SESSION_REVISION'];
//NB ouch! New document content is passed as an input stream content
$stream = fopen('php://input', 'r');
if (!$stream) {
throw new \Exception('New content missing');
}
$content = stream_get_contents($stream);
$session = new Db\Session();
$session->load($esId);
if (!$session->getEsId()) {
throw new \Exception('Session does not exist');
}
try {
if ($currentMember->getIsGuest()) {
$file = File::getByShareToken($currentMember->getToken());
} else {
$file = new File($session->getFileId());
}
list($view, $path) = $file->getOwnerViewAndPath(true);
} catch (\Exception $e) {
//File was deleted or unshared. We need to save content as new file anyway
//Sorry, but for guests it would be lost :(
if ($this->uid) {
$view = new View('/' . $this->uid . '/files');
$dir = \OCP\Config::getUserValue($this->uid, 'documents', 'save_path', '');
$path = Helper::getNewFileName($view, $dir . 'New Document.odt');
} else {
throw $e;
}
}
$member = new Db\Member();
$members = $member->getActiveCollection($esId);
$memberIds = array_map(function ($x) {
return $x['member_id'];
}, $members);
// Active users except current user
$memberCount = count($memberIds) - 1;
if ($view->file_exists($path)) {
$currentHash = sha1($view->file_get_contents($path));
if (!Helper::isVersionsEnabled() && $currentHash !== $session->getGenesisHash()) {
// Original file was modified externally. Save to a new one
$path = Helper::getNewFileName($view, $path, '-conflict');
}
$mimetype = $view->getMimeType($path);
} else {
$mimetype = Storage::MIMETYPE_LIBREOFFICE_WORDPROCESSOR;
}
$data = Filter::write($content, $mimetype);
if ($view->file_put_contents($path, $data['content'])) {
// Not a last user
if ($memberCount > 0) {
// Update genesis hash to prevent conflicts
$this->logger->debug('Update hash', array('app' => $this->appName));
$session->updateGenesisHash($esId, sha1($data['content']));
} else {
// Last user. Kill session data
Db\Session::cleanUp($esId);
}
$view->touch($path);
}
$response = array('status' => 'success');
} catch (\Exception $e) {
$this->logger->warning('Saving failed. Reason:' . $e->getMessage(), array('app' => $this->appName));
\OC_Response::setStatus(500);
$response = array();
}
return $response;
}
/**
* @NoAdminRequired
* lists the documents the user has access to (including shared files, once the code in core has been fixed)
* also adds session and member info for these files
*/
public function listAll()
{
$found = Storage::getDocuments();
$fileIds = array();
$documents = array();
foreach ($found as $key => $document) {
if (is_object($document)) {
$documents[] = $document->getData();
} else {
$documents[$key] = $document;
}
$documents[$key]['icon'] = preg_replace('/\\.png$/', '.svg', \OC_Helper::mimetypeIcon($document['mimetype']));
$fileIds[] = $document['fileid'];
}
usort($documents, function ($a, $b) {
return @$b['mtime'] - @$a['mtime'];
});
$session = new Db\Session();
$sessions = $session->getCollectionBy('file_id', $fileIds);
$members = array();
$member = new Db\Member();
foreach ($sessions as $session) {
$members[$session['es_id']] = $member->getActiveCollection($session['es_id']);
}
return array('status' => 'success', 'documents' => $documents, 'sessions' => $sessions, 'members' => $members);
}
protected function loadMember($memberId, $expectedEsId = null)
{
if (!$memberId) {
throw new \Exception('Member id can not be empty');
}
$member = new Db\Member();
$member->load($memberId);
//check if member belongs to the session
if (!is_null($expectedEsId) && $expectedEsId !== $member->getEsId()) {
throw new \Exception($memberId . ' does not belong to session ' . $expectedEsId);
}
return $member;
}
