/**
* get the relative path of the root data directory for the current user
*
* @return string
*
* Returns path like /admin/files
*/
public static function getRoot()
{
if (!self::$defaultInstance) {
return null;
}
return self::$defaultInstance->getRoot();
}
/**
* @param \OC\Files\View $view the view the updater works on, usually the view of the logged in user
* @param View | null $userView
*/
public function __construct(View $view, $userView = null) {
$this->view = $view;
// use the userview if the view is a subfolder
if ($userView && $userView->getRelativePath($view->getRoot())) {
$this->propagatorView = $userView;
$this->propagator = new ChangePropagator($userView);
} else {
$this->propagatorView = $view;
$this->propagator = new ChangePropagator($view);
}
}
/**
* Encrypt all files in a directory
* @param string $dirPath the directory whose files will be encrypted
* @return bool
* @note Encryption is recursive
*/
public function encryptAll($dirPath)
{
$result = true;
$found = $this->findEncFiles($dirPath);
// Disable proxy to prevent file being encrypted twice
\OC_FileProxy::$enabled = false;
$versionStatus = \OCP\App::isEnabled('files_versions');
\OC_App::disable('files_versions');
$encryptedFiles = array();
// Encrypt unencrypted files
foreach ($found['plain'] as $plainFile) {
//get file info
$fileInfo = \OC\Files\Filesystem::getFileInfo($plainFile['path']);
//relative to data/<user>/file
$relPath = $plainFile['path'];
//relative to /data
$rawPath = '/' . $this->userId . '/files/' . $plainFile['path'];
// keep timestamp
$timestamp = $fileInfo['mtime'];
// Open plain file handle for binary reading
$plainHandle = $this->view->fopen($rawPath, 'rb');
// Open enc file handle for binary writing, with same filename as original plain file
$encHandle = fopen('crypt://' . $rawPath . '.part', 'wb');
if (is_resource($encHandle) && is_resource($plainHandle)) {
// Move plain file to a temporary location
$size = stream_copy_to_stream($plainHandle, $encHandle);
fclose($encHandle);
fclose($plainHandle);
$fakeRoot = $this->view->getRoot();
$this->view->chroot('/' . $this->userId . '/files');
$this->view->rename($relPath . '.part', $relPath);
// set timestamp
$this->view->touch($relPath, $timestamp);
$encSize = $this->view->filesize($relPath);
$this->view->chroot($fakeRoot);
// Add the file to the cache
\OC\Files\Filesystem::putFileInfo($relPath, array('encrypted' => true, 'size' => $encSize, 'unencrypted_size' => $size, 'etag' => $fileInfo['etag']));
$encryptedFiles[] = $relPath;
} else {
\OCP\Util::writeLog('files_encryption', 'initial encryption: could not encrypt ' . $rawPath, \OCP\Util::FATAL);
$result = false;
}
}
\OC_FileProxy::$enabled = true;
if ($versionStatus) {
\OC_App::enable('files_versions');
}
$result = $result && $this->encryptVersions($encryptedFiles);
return $result;
}
/**
* test rename operation
*/
function doTestRenameHook($filename) {
// check if keys exists
$this->assertTrue($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/share-keys/'
. $filename . '.' . self::TEST_ENCRYPTION_HOOKS_USER1 . '.shareKey'));
$this->assertTrue($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/keyfiles/'
. $filename . '.key'));
// make subfolder and sub-subfolder
$this->rootView->mkdir('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $this->folder);
$this->rootView->mkdir('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $this->folder . '/' . $this->folder);
$this->assertTrue($this->rootView->is_dir('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $this->folder . '/' . $this->folder));
// move the file to the sub-subfolder
$root = $this->rootView->getRoot();
$this->rootView->chroot('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/');
$this->rootView->rename($filename, '/' . $this->folder . '/' . $this->folder . '/' . $filename);
$this->rootView->chroot($root);
$this->assertFalse($this->rootView->file_exists('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $filename));
$this->assertTrue($this->rootView->file_exists('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $this->folder . '/' . $this->folder . '/' . $filename));
// keys should be renamed too
$this->assertFalse($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/share-keys/'
. $filename . '.' . self::TEST_ENCRYPTION_HOOKS_USER1 . '.shareKey'));
$this->assertFalse($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/keyfiles/'
. $filename . '.key'));
$this->assertTrue($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/share-keys/' . $this->folder . '/' . $this->folder . '/'
. $filename . '.' . self::TEST_ENCRYPTION_HOOKS_USER1 . '.shareKey'));
$this->assertTrue($this->rootView->file_exists(
'/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files_encryption/keyfiles/' . $this->folder . '/' . $this->folder . '/'
. $filename . '.key'));
// cleanup
$this->rootView->unlink('/' . self::TEST_ENCRYPTION_HOOKS_USER1 . '/files/' . $this->folder);
}
/**
* @param \OC\Files\View $view
* @param string $path
*
* @return array
*/
private static function getAllChildren($view, $path)
{
$children = $view->getDirectoryContent($path);
$childrensFiles = array();
$fakeRootLength = strlen($view->getRoot());
for ($i = 0; $i < count($children); $i++) {
$child = $children[$i];
$childsPath = substr($child->getPath(), $fakeRootLength);
if ($view->is_dir($childsPath)) {
$children = array_merge($children, $view->getDirectoryContent($childsPath));
} else {
$childrensFiles[] = $child;
}
}
return $childrensFiles;
}
/**
* @brief get the relative path of the root data directory for the current user
* @return string
*
* Returns path like /admin/files
*/
public static function getRoot()
{
return self::$defaultInstance->getRoot();
}
