/**
* @brief if the file was really deleted we remove the encryption keys
* @param array $params
* @return boolean
*/
public static function postDelete($params)
{
if (!isset(self::$deleteFiles[$params[\OC\Files\Filesystem::signal_param_path]])) {
return true;
}
$deletedFile = self::$deleteFiles[$params[\OC\Files\Filesystem::signal_param_path]];
$path = $deletedFile['path'];
$user = $deletedFile['uid'];
// we don't need to remember the file any longer
unset(self::$deleteFiles[$params[\OC\Files\Filesystem::signal_param_path]]);
$view = new \OC\Files\View('/');
// return if the file still exists and wasn't deleted correctly
if ($view->file_exists('/' . $user . '/files/' . $path)) {
return true;
}
// Disable encryption proxy to prevent recursive calls
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
// Delete keyfile & shareKey so it isn't orphaned
if (!Keymanager::deleteFileKey($view, $path, $user)) {
\OCP\Util::writeLog('Encryption library', 'Keyfile or shareKey could not be deleted for file "' . $user . '/files/' . $path . '"', \OCP\Util::ERROR);
}
Keymanager::delAllShareKeys($view, $user, $path);
\OC_FileProxy::$enabled = $proxyStatus;
}
function testDelAllShareKeysFile()
{
$this->view->mkdir('/' . Test_Encryption_Keymanager::TEST_USER . '/files/folder1');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files/folder1/existingFile.txt', 'data');
// create folder structure for some dummy share key files
$this->view->mkdir('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1');
// create some dummy share keys for the existing file
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user1.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user2.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user3.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.' . Test_Encryption_Keymanager::TEST_USER . '.shareKey', 'data');
// create some dummy share keys for a non-existing file
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user1.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user2.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user3.shareKey', 'data');
$this->view->file_put_contents('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.' . Test_Encryption_Keymanager::TEST_USER . '.shareKey', 'data');
// try to del all share keys from a existing file, should fail because the file still exists
$result = Encryption\Keymanager::delAllShareKeys($this->view, Test_Encryption_Keymanager::TEST_USER, 'folder1/existingFile.txt');
$this->assertFalse($result);
// check if share keys still exists
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.' . Test_Encryption_Keymanager::TEST_USER . '.shareKey'));
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user1.shareKey'));
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user2.shareKey'));
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/existingFile.txt.user3.shareKey'));
// try to del all share keys from file, should succeed because the does not exist any more
$result2 = Encryption\Keymanager::delAllShareKeys($this->view, Test_Encryption_Keymanager::TEST_USER, 'folder1/nonexistingFile.txt');
$this->assertTrue($result2);
// check if share keys are really gone
$this->assertFalse($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.' . Test_Encryption_Keymanager::TEST_USER . '.shareKey'));
// check that it only deleted keys or users who had access, others remain
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user1.shareKey'));
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user2.shareKey'));
$this->assertTrue($this->view->file_exists('/' . Test_Encryption_Keymanager::TEST_USER . '/files_encryption/share-keys/folder1/nonexistingFile.txt.user3.shareKey'));
// cleanup
$this->view->deleteAll('/' . Test_Encryption_Keymanager::TEST_USER . '/files/folder1');
}
