public function stream_open($path, $mode, $options, &$opened_path)
{
$this->loadContext('ocencryption');
$this->position = 0;
$this->cache = '';
$this->writeFlag = false;
$this->unencryptedBlockSize = $this->encryptionModule->getUnencryptedBlockSize($this->signed);
if ($mode === 'w' || $mode === 'w+' || $mode === 'wb' || $mode === 'wb+' || $mode === 'r+' || $mode === 'rb+') {
$this->readOnly = false;
} else {
$this->readOnly = true;
}
$sharePath = $this->fullPath;
if (!$this->storage->file_exists($this->internalPath)) {
$sharePath = dirname($sharePath);
}
$accessList = $this->file->getAccessList($sharePath);
$this->newHeader = $this->encryptionModule->begin($this->fullPath, $this->uid, $mode, $this->header, $accessList);
if ($mode === 'w' || $mode === 'w+' || $mode === 'wb' || $mode === 'wb+') {
// We're writing a new file so start write counter with 0 bytes
$this->unencryptedSize = 0;
$this->writeHeader();
$this->headerSize = $this->util->getHeaderSize();
$this->size = $this->headerSize;
} else {
$this->skipHeader();
}
return true;
}
/**
* notify encryption module about added/removed users from a file/folder
*
* @param string $path relative to data/
* @throws Exceptions\ModuleDoesNotExistsException
*/
public function update($path)
{
// if a folder was shared, get a list of all (sub-)folders
if ($this->view->is_dir($path)) {
$allFiles = $this->util->getAllFiles($path);
} else {
$allFiles = array($path);
}
$encryptionModule = $this->encryptionManager->getEncryptionModule();
foreach ($allFiles as $file) {
$usersSharing = $this->file->getAccessList($file);
$encryptionModule->update($file, $this->uid, $usersSharing);
}
}
/**
* update keyfiles and share keys recursively
*
* @param int $fileSource file source id
*/
private function update($fileSource)
{
$path = \OC\Files\Filesystem::getPath($fileSource);
$info = \OC\Files\Filesystem::getFileInfo($path);
$owner = \OC\Files\Filesystem::getOwner($path);
$view = new \OC\Files\View('/' . $owner . '/files');
$ownerPath = $view->getPath($info->getId());
$absPath = '/' . $owner . '/files' . $ownerPath;
$mount = $this->mountManager->find($path);
$mountPoint = $mount->getMountPoint();
// if a folder was shared, get a list of all (sub-)folders
if ($this->view->is_dir($absPath)) {
$allFiles = $this->util->getAllFiles($absPath, $mountPoint);
} else {
$allFiles = array($absPath);
}
$encryptionModule = $this->encryptionManager->getDefaultEncryptionModule();
foreach ($allFiles as $path) {
$usersSharing = $this->file->getAccessList($path);
$encryptionModule->update($path, $this->uid, $usersSharing);
}
}
