/**
* Create new genesis document
* @param File $file
* */
public function __construct(File $file)
{
$view = $file->getOwnerView();
$path = $file->getPath();
$owner = $file->getOwner();
$this->view = new View('/' . $owner);
if (!$this->view->file_exists(self::DOCUMENTS_DIRNAME)) {
$this->view->mkdir(self::DOCUMENTS_DIRNAME);
}
$this->validate($view, $path);
$this->hash = $view->hash('sha1', $path, false);
$this->path = self::DOCUMENTS_DIRNAME . '/' . $this->hash . '.odt';
if (!$this->view->file_exists($this->path)) {
//copy new genesis to /user/documents/{hash}.odt
// get decrypted content
$content = $view->file_get_contents($path);
$mimetype = $view->getMimeType($path);
$data = Filter::read($content, $mimetype);
$this->view->file_put_contents($this->path, $data['content']);
}
try {
$this->validate($this->view, $this->path);
} catch (\Exception $e) {
throw new \Exception('Failed to copy genesis');
}
}
public function render()
{
if ($this->getStatus() === Http::STATUS_NOT_FOUND) {
return '';
}
$info = $this->view->getFileInfo($this->path);
$this->ETag = $info['etag'];
$content = $this->view->file_get_contents($this->path);
$data = \OCA\Documents\Filter::read($content, $info['mimetype']);
$size = strlen($data['content']);
if (isset($this->request->server['HTTP_RANGE']) && !is_null($this->request->server['HTTP_RANGE'])) {
$isValidRange = preg_match('/^bytes=\\d*-\\d*(,\\d*-\\d*)*$/', $this->request->server['HTTP_RANGE']);
if (!$isValidRange) {
return $this->sendRangeNotSatisfiable($size);
}
$ranges = explode(',', substr($this->request->server['HTTP_RANGE'], 6));
foreach ($ranges as $range) {
$parts = explode('-', $range);
if ($parts[0] === '' && $parts[1] == '') {
$this->sendNotSatisfiable($size);
}
if ($parts[0] === '') {
$start = $size - $parts[1];
$end = $size - 1;
} else {
$start = $parts[0];
$end = $parts[1] === '' ? $size - 1 : $parts[1];
}
if ($start > $end) {
$this->sendNotSatisfiable($size);
}
$buffer = substr($data['content'], $start, $end - $start);
$md5Sum = md5($buffer);
// send the headers and data
$this->addHeader('Content-Length', $end - $start);
$this->addHeader('Content-md5', $md5Sum);
$this->addHeader('Accept-Ranges', 'bytes');
$this->addHeader('Content-Range', 'bytes ' . $start . '-' . $end . '/' . $size);
$this->addHeader('Connection', 'close');
$this->addHeader('Content-Type', $data['mimetype']);
$this->addContentDispositionHeader();
return $buffer;
}
}
$this->addHeader('Content-Type', $data['mimetype']);
$this->addContentDispositionHeader();
$this->addHeader('Content-Length', $size);
return $data['content'];
}
/**
* Send the whole file content as a response
*/
public function sendResponse()
{
$mimetype = $this->getMimeType();
$content = $this->view->file_get_contents($this->filepath);
$data = \OCA\Documents\Filter::read($content, $mimetype);
header('Content-Type:' . $data['mimetype']);
$encodedName = rawurlencode($this->getFilename());
if (preg_match("/MSIE/", $_SERVER["HTTP_USER_AGENT"])) {
header('Content-Disposition: attachment; filepath="' . $encodedName . '"');
} else {
header('Content-Disposition: attachment; filepath*=UTF-8\'\'' . $encodedName . '; filepath="' . $encodedName . '"');
}
header('Content-Length: ' . strlen($data['content']));
\OC_Util::obEnd();
echo $data['content'];
}
/**
* 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 $sessionData;
}
/**
* Send the requested parts of the file
*/
public function sendResponse()
{
if (!preg_match('/^bytes=\\d*-\\d*(,\\d*-\\d*)*$/', $_SERVER['HTTP_RANGE'])) {
$this->sendNotSatisfiable();
}
$mimetype = $this->getMimeType();
$content = $this->view->file_get_contents($this->filepath);
$data = \OCA\Documents\Filter::read($content, $mimetype);
$size = strlen($data['content']);
$ranges = explode(',', substr($_SERVER['HTTP_RANGE'], 6));
foreach ($ranges as $range) {
$parts = explode('-', $range);
if ($parts[0] === '' && $parts[1] == '') {
$this->sendNotSatisfiable();
}
if ($parts[0] === '') {
$start = $size - $parts[1];
$end = $size - 1;
} else {
$start = $parts[0];
$end = $parts[1] === '' ? $size - 1 : $parts[1];
}
if ($start > $end) {
$this->sendNotSatisfiable();
}
$buffer = substr($data['content'], $start, $end - $start);
$md5Sum = md5($buffer);
// send the headers and data
header("Content-Length: " . ($end - $start));
header("Content-md5: " . $md5Sum);
header("Accept-Ranges: bytes");
header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
header("Connection: close");
header("Content-type: " . $data['mimetype']);
header('Content-Disposition: attachment; filename=' . $this->getFilename());
\OC_Util::obEnd();
echo $buffer;
flush();
}
}
/**
* @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 $response;
}
public function __construct($mimeSpec)
{
$this->readSpec = $mimeSpec['read'];
$this->writeSpec = $mimeSpec['write'];
\OCA\Documents\Filter::add($mimeSpec['write']['target'], $this);
}
/**
* @NoAdminRequired
*/
public function getSupportedMimes()
{
return array('status' => 'success', 'mimes' => Filter::getAll());
}
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');
}
}