/**
* @return string the mount point of the mount for the user
*/
public function getMountPoint()
{
if (!$this->mountPoint) {
$this->mountPoint = $this->mount->getMountPoint();
}
return parent::getMountPoint();
}
public function testGetStorage()
{
$return = $this->getMockBuilder('OC\\Files\\Storage\\Storage')->disableOriginalConstructor()->getMock();
$path = '/foo/bar.txt';
$this->filesMock->expects($this->once())->method('getMount')->with($path)->willReturn($this->mountMock);
$this->mountMock->expects($this->once())->method('getStorage')->willReturn($return);
$this->assertEquals($return, $this->instance->getStorage($path));
}
/**
* copy file between two storages
*
* @param Storage $sourceStorage
* @param string $sourceInternalPath
* @param string $targetInternalPath
* @param bool $preserveMtime
* @param bool $isRename
* @return bool
*/
private function copyBetweenStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename)
{
// first copy the keys that we reuse the existing file key on the target location
// and don't create a new one which would break versions for example.
$mount = $this->mountManager->findByStorageId($sourceStorage->getId());
if (count($mount) === 1) {
$mountPoint = $mount[0]->getMountPoint();
$source = $mountPoint . '/' . $sourceInternalPath;
$target = $this->getFullPath($targetInternalPath);
$this->copyKeys($source, $target);
} else {
$this->logger->error('Could not find mount point, can\'t keep encryption keys');
}
if ($sourceStorage->is_dir($sourceInternalPath)) {
$dh = $sourceStorage->opendir($sourceInternalPath);
$result = $this->mkdir($targetInternalPath);
if (is_resource($dh)) {
while ($result and ($file = readdir($dh)) !== false) {
if (!Filesystem::isIgnoredDir($file)) {
$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file);
}
}
}
} else {
try {
$source = $sourceStorage->fopen($sourceInternalPath, 'r');
$target = $this->fopen($targetInternalPath, 'w');
list(, $result) = \OC_Helper::streamCopy($source, $target);
fclose($source);
fclose($target);
} catch (\Exception $e) {
fclose($source);
fclose($target);
throw $e;
}
if ($result) {
if ($preserveMtime) {
$this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
}
$isEncrypted = $this->encryptionManager->isEnabled() && $this->mount->getOption('encrypt', true) ? 1 : 0;
// in case of a rename we need to manipulate the source cache because
// this information will be kept for the new target
if ($isRename) {
$sourceStorage->getCache()->put($sourceInternalPath, ['encrypted' => $isEncrypted]);
} else {
$this->getCache()->put($targetInternalPath, ['encrypted' => $isEncrypted]);
}
} else {
// delete partially written target file
$this->unlink($targetInternalPath);
// delete cache entry that was created by fopen
$this->getCache()->remove($targetInternalPath);
}
}
return (bool) $result;
}
/**
* see http://php.net/manual/en/function.fopen.php
*
* @param string $path
* @param string $mode
* @return resource
*/
public function fopen($path, $mode)
{
$encryptionEnabled = $this->encryptionManager->isEnabled();
$shouldEncrypt = false;
$encryptionModule = null;
$header = $this->getHeader($path);
$fullPath = $this->getFullPath($path);
$encryptionModuleId = $this->util->getEncryptionModuleId($header);
$size = $unencryptedSize = 0;
$targetExists = $this->file_exists($path);
$targetIsEncrypted = false;
if ($targetExists) {
// in case the file exists we require the explicit module as
// specified in the file header - otherwise we need to fail hard to
// prevent data loss on client side
if (!empty($encryptionModuleId)) {
$targetIsEncrypted = true;
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
}
$size = $this->storage->filesize($path);
$unencryptedSize = $this->filesize($path);
}
try {
if ($mode === 'w' || $mode === 'w+' || $mode === 'wb' || $mode === 'wb+') {
if (!empty($encryptionModuleId)) {
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
} elseif ($encryptionEnabled) {
$encryptionModule = $this->encryptionManager->getDefaultEncryptionModule();
$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
}
} else {
// only get encryption module if we found one in the header
if (!empty($encryptionModuleId)) {
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
$shouldEncrypt = true;
}
}
} catch (ModuleDoesNotExistsException $e) {
$this->logger->warning('Encryption module "' . $encryptionModuleId . '" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
}
// encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
if (!$encryptionEnabled || !$this->mount->getOption('encrypt', true)) {
if (!$targetExists || !$targetIsEncrypted) {
$shouldEncrypt = false;
}
}
if ($shouldEncrypt === true && !$this->util->isExcluded($fullPath) && $encryptionModule !== null) {
$source = $this->storage->fopen($path, $mode);
$handle = \OC\Files\Stream\Encryption::wrap($source, $path, $fullPath, $header, $this->uid, $encryptionModule, $this->storage, $this, $this->util, $this->fileHelper, $mode, $size, $unencryptedSize);
return $handle;
} else {
return $this->storage->fopen($path, $mode);
}
}
/**
* Update the encrypted cache version in the database
*
* @param Storage $sourceStorage
* @param string $sourceInternalPath
* @param string $targetInternalPath
* @param bool $isRename
*/
private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename)
{
$isEncrypted = $this->encryptionManager->isEnabled() && $this->mount->getOption('encrypt', true) ? 1 : 0;
$cacheInformation = ['encrypted' => (bool) $isEncrypted];
if ($isEncrypted === 1) {
$cacheInformation['encryptedVersion'] = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
}
// in case of a rename we need to manipulate the source cache because
// this information will be kept for the new target
if ($isRename) {
$sourceStorage->getCache()->put($sourceInternalPath, $cacheInformation);
} else {
$this->getCache()->put($targetInternalPath, $cacheInformation);
}
}
/**
* Update the encrypted cache version in the database
*
* @param Storage $sourceStorage
* @param string $sourceInternalPath
* @param string $targetInternalPath
* @param bool $isRename
*/
private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename)
{
$isEncrypted = $this->encryptionManager->isEnabled() && $this->mount->getOption('encrypt', true) ? 1 : 0;
$cacheInformation = ['encrypted' => (bool) $isEncrypted];
if ($isEncrypted === 1) {
$encryptedVersion = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
// In case of a move operation from an unencrypted to an encrypted
// storage the old encrypted version would stay with "0" while the
// correct value would be "1". Thus we manually set the value to "1"
// for those cases.
// See also https://github.com/owncloud/core/issues/23078
if ($encryptedVersion === 0) {
$encryptedVersion = 1;
}
$cacheInformation['encryptedVersion'] = $encryptedVersion;
}
// in case of a rename we need to manipulate the source cache because
// this information will be kept for the new target
if ($isRename) {
$sourceStorage->getCache()->put($sourceInternalPath, $cacheInformation);
} else {
$this->getCache()->put($targetInternalPath, $cacheInformation);
}
}
/**
* @param IMountPoint $mount
*/
public function addMount(IMountPoint $mount)
{
$this->mounts[$mount->getMountPoint()] = $mount;
}
