/**
* 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()) {
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_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);
$userId = $file->isPublicShare() ? $displayName : \OCP\User::getUser();
$op = new \OCA\Documents\Db\Op();
$op->addMember($sessionData['es_id'], $sessionData['member_id'], $displayName, $userId, $memberColor, $imageUrl);
$sessionData['title'] = basename($path);
$fileInfo = $ownerView->getFileInfo($path);
$sessionData['permissions'] = $fileInfo->getPermissions();
return $sessionData;
}
protected function initViews()
{
$this->ownerView = new View('/' . $this->owner);
$this->ownerViewFiles = new View('/' . $this->owner . '/files');
$this->path = $this->ownerView->getPath($this->fileId);
$this->pathFiles = $this->ownerViewFiles->getPath($this->fileId);
if (!$this->path || !$this->pathFiles) {
throw new \Exception($this->fileId . ' can not be resolved');
}
if (!$this->ownerView->file_exists($this->path)) {
throw new \Exception($this->path . ' doesn\'t exist');
}
if (!$this->ownerViewFiles->file_exists($this->pathFiles)) {
throw new \Exception($this->pathFiles . ' doesn\'t exist');
}
if (!$this->ownerView->is_file($this->path)) {
throw new \Exception('Object ' . $this->path . ' is not a file.');
}
//TODO check if it is a valid odt
$mimetype = $this->ownerView->getMimeType($this->path);
if (!Filter::isSupportedMimetype($mimetype)) {
throw new \Exception($this->path . ' is ' . $mimetype . ' and is not supported by Documents app');
}
}
