diff options
Diffstat (limited to 'apps/encryption/lib/Migration.php')
-rw-r--r-- | apps/encryption/lib/Migration.php | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/apps/encryption/lib/Migration.php b/apps/encryption/lib/Migration.php deleted file mode 100644 index 35f35a1520c..00000000000 --- a/apps/encryption/lib/Migration.php +++ /dev/null @@ -1,395 +0,0 @@ -<?php -/** - * @copyright Copyright (c) 2016, ownCloud, Inc. - * - * @author Björn Schießle <bjoern@schiessle.org> - * @author Joas Schilling <coding@schilljs.com> - * @author Morris Jobke <hey@morrisjobke.de> - * @author Robin Appelman <robin@icewind.nl> - * - * @license AGPL-3.0 - * - * This code is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License, version 3, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License, version 3, - * along with this program. If not, see <http://www.gnu.org/licenses/> - * - */ - -namespace OCA\Encryption; - - -use OC\Files\View; -use OCP\App\IAppManager; -use OCP\IConfig; -use OCP\IDBConnection; -use OCP\ILogger; - -class Migration { - - private $moduleId; - /** @var \OC\Files\View */ - private $view; - /** @var \OCP\IDBConnection */ - private $connection; - /** @var IConfig */ - private $config; - /** @var ILogger */ - private $logger; - /** @var string*/ - protected $installedVersion; - /** @var IAppManager */ - protected $appManager; - - /** - * @param IConfig $config - * @param View $view - * @param IDBConnection $connection - * @param ILogger $logger - */ - public function __construct(IConfig $config, View $view, IDBConnection $connection, ILogger $logger, IAppManager $appManager) { - $this->view = $view; - $this->view->disableCacheUpdate(); - $this->connection = $connection; - $this->moduleId = \OCA\Encryption\Crypto\Encryption::ID; - $this->config = $config; - $this->logger = $logger; - $this->installedVersion = $this->config->getAppValue('files_encryption', 'installed_version', '-1'); - $this->appManager = $appManager; - } - - public function finalCleanUp() { - $this->view->deleteAll('files_encryption/public_keys'); - $this->updateFileCache(); - $this->config->deleteAppValue('files_encryption', 'installed_version'); - } - - /** - * update file cache, copy unencrypted_size to the 'size' column - */ - private function updateFileCache() { - // make sure that we don't update the file cache multiple times - // only update during the first run - if ($this->installedVersion !== '-1') { - $query = $this->connection->getQueryBuilder(); - $query->update('filecache') - ->set('size', 'unencrypted_size') - ->where($query->expr()->eq('encrypted', $query->createParameter('encrypted'))) - ->setParameter('encrypted', 1); - $query->execute(); - } - } - - /** - * iterate through users and reorganize the folder structure - */ - public function reorganizeFolderStructure() { - $this->reorganizeSystemFolderStructure(); - - $limit = 500; - $offset = 0; - do { - $users = \OCP\User::getUsers('', $limit, $offset); - foreach ($users as $user) { - $this->reorganizeFolderStructureForUser($user); - } - $offset += $limit; - } while (count($users) >= $limit); - } - - /** - * reorganize system wide folder structure - */ - public function reorganizeSystemFolderStructure() { - - $this->createPathForKeys('/files_encryption'); - - // backup system wide folders - $this->backupSystemWideKeys(); - - // rename system wide mount point - $this->renameFileKeys('', '/files_encryption/keys'); - - // rename system private keys - $this->renameSystemPrivateKeys(); - - $storage = $this->view->getMount('')->getStorage(); - $storage->getScanner()->scan('files_encryption'); - } - - - /** - * reorganize folder structure for user - * - * @param string $user - */ - public function reorganizeFolderStructureForUser($user) { - // backup all keys - \OC_Util::tearDownFS(); - \OC_Util::setupFS($user); - if ($this->backupUserKeys($user)) { - // rename users private key - $this->renameUsersPrivateKey($user); - $this->renameUsersPublicKey($user); - // rename file keys - $path = '/files_encryption/keys'; - $this->renameFileKeys($user, $path); - $trashPath = '/files_trashbin/keys'; - if ($this->appManager->isEnabledForUser('files_trashbin') && $this->view->is_dir($user . '/' . $trashPath)) { - $this->renameFileKeys($user, $trashPath, true); - $this->view->deleteAll($trashPath); - } - // delete old folders - $this->deleteOldKeys($user); - $this->view->getMount('/' . $user)->getStorage()->getScanner()->scan('files_encryption'); - } - } - - /** - * update database - */ - public function updateDB() { - - // make sure that we don't update the file cache multiple times - // only update during the first run - if ($this->installedVersion === '-1') { - return; - } - - // delete left-over from old encryption which is no longer needed - $this->config->deleteAppValue('files_encryption', 'ocsid'); - $this->config->deleteAppValue('files_encryption', 'types'); - $this->config->deleteAppValue('files_encryption', 'enabled'); - - $oldAppValues = $this->connection->getQueryBuilder(); - $oldAppValues->select('*') - ->from('appconfig') - ->where($oldAppValues->expr()->eq('appid', $oldAppValues->createParameter('appid'))) - ->setParameter('appid', 'files_encryption'); - $appSettings = $oldAppValues->execute(); - - while ($row = $appSettings->fetch()) { - // 'installed_version' gets deleted at the end of the migration process - if ($row['configkey'] !== 'installed_version' ) { - $this->config->setAppValue('encryption', $row['configkey'], $row['configvalue']); - $this->config->deleteAppValue('files_encryption', $row['configkey']); - } - } - - $oldPreferences = $this->connection->getQueryBuilder(); - $oldPreferences->select('*') - ->from('preferences') - ->where($oldPreferences->expr()->eq('appid', $oldPreferences->createParameter('appid'))) - ->setParameter('appid', 'files_encryption'); - $preferenceSettings = $oldPreferences->execute(); - - while ($row = $preferenceSettings->fetch()) { - $this->config->setUserValue($row['userid'], 'encryption', $row['configkey'], $row['configvalue']); - $this->config->deleteUserValue($row['userid'], 'files_encryption', $row['configkey']); - } - } - - /** - * create backup of system-wide keys - */ - private function backupSystemWideKeys() { - $backupDir = 'encryption_migration_backup_' . date("Y-m-d_H-i-s"); - $this->view->mkdir($backupDir); - $this->view->copy('files_encryption', $backupDir . '/files_encryption'); - } - - /** - * create backup of user specific keys - * - * @param string $user - * @return bool - */ - private function backupUserKeys($user) { - $encryptionDir = $user . '/files_encryption'; - if ($this->view->is_dir($encryptionDir)) { - $backupDir = $user . '/encryption_migration_backup_' . date("Y-m-d_H-i-s"); - $this->view->mkdir($backupDir); - $this->view->copy($encryptionDir, $backupDir); - return true; - } - return false; - } - - /** - * rename system-wide private keys - */ - private function renameSystemPrivateKeys() { - $dh = $this->view->opendir('files_encryption'); - $this->createPathForKeys('/files_encryption/' . $this->moduleId ); - if (is_resource($dh)) { - while (($privateKey = readdir($dh)) !== false) { - if (!\OC\Files\Filesystem::isIgnoredDir($privateKey) ) { - if (!$this->view->is_dir('/files_encryption/' . $privateKey)) { - $this->view->rename('files_encryption/' . $privateKey, 'files_encryption/' . $this->moduleId . '/' . $privateKey); - $this->renameSystemPublicKey($privateKey); - } - } - } - closedir($dh); - } - } - - /** - * rename system wide public key - * - * @param string $privateKey private key for which we want to rename the corresponding public key - */ - private function renameSystemPublicKey($privateKey) { - $publicKey = substr($privateKey,0 , strrpos($privateKey, '.privateKey')) . '.publicKey'; - $this->view->rename('files_encryption/public_keys/' . $publicKey, 'files_encryption/' . $this->moduleId . '/' . $publicKey); - } - - /** - * rename user-specific private keys - * - * @param string $user - */ - private function renameUsersPrivateKey($user) { - $oldPrivateKey = $user . '/files_encryption/' . $user . '.privateKey'; - $newPrivateKey = $user . '/files_encryption/' . $this->moduleId . '/' . $user . '.privateKey'; - if ($this->view->file_exists($oldPrivateKey)) { - $this->createPathForKeys(dirname($newPrivateKey)); - $this->view->rename($oldPrivateKey, $newPrivateKey); - } - } - - /** - * rename user-specific public keys - * - * @param string $user - */ - private function renameUsersPublicKey($user) { - $oldPublicKey = '/files_encryption/public_keys/' . $user . '.publicKey'; - $newPublicKey = $user . '/files_encryption/' . $this->moduleId . '/' . $user . '.publicKey'; - if ($this->view->file_exists($oldPublicKey)) { - $this->createPathForKeys(dirname($newPublicKey)); - $this->view->rename($oldPublicKey, $newPublicKey); - } - } - - /** - * rename file keys - * - * @param string $user - * @param string $path - * @param bool $trash - */ - private function renameFileKeys($user, $path, $trash = false) { - - if ($this->view->is_dir($user . '/' . $path) === false) { - $this->logger->info('Skip dir /' . $user . '/' . $path . ': does not exist'); - return; - } - - $dh = $this->view->opendir($user . '/' . $path); - - if (is_resource($dh)) { - while (($file = readdir($dh)) !== false) { - if (!\OC\Files\Filesystem::isIgnoredDir($file)) { - if ($this->view->is_dir($user . '/' . $path . '/' . $file)) { - $this->renameFileKeys($user, $path . '/' . $file, $trash); - } else { - $target = $this->getTargetDir($user, $path, $file, $trash); - if ($target !== false) { - $this->createPathForKeys(dirname($target)); - $this->view->rename($user . '/' . $path . '/' . $file, $target); - } else { - $this->logger->warning( - 'did not move key "' . $file - . '" could not find the corresponding file in /data/' . $user . '/files.' - . 'Most likely the key was already moved in a previous migration run and is already on the right place.'); - } - } - } - } - closedir($dh); - } - } - - /** - * get system mount points - * wrap static method so that it can be mocked for testing - * - * @internal - * @return array - */ - protected function getSystemMountPoints() { - return \OC_Mount_Config::getSystemMountPoints(); - } - - /** - * generate target directory - * - * @param string $user - * @param string $keyPath - * @param string $filename - * @param bool $trash - * @return string - */ - private function getTargetDir($user, $keyPath, $filename, $trash) { - if ($trash) { - $filePath = substr($keyPath, strlen('/files_trashbin/keys/')); - $targetDir = $user . '/files_encryption/keys/files_trashbin/' . $filePath . '/' . $this->moduleId . '/' . $filename; - } else { - $filePath = substr($keyPath, strlen('/files_encryption/keys/')); - $targetDir = $user . '/files_encryption/keys/files/' . $filePath . '/' . $this->moduleId . '/' . $filename; - } - - if ($user === '') { - // for system wide mounts we need to check if the mount point really exists - $normalized = \OC\Files\Filesystem::normalizePath($filePath); - $systemMountPoints = $this->getSystemMountPoints(); - foreach ($systemMountPoints as $mountPoint) { - $normalizedMountPoint = \OC\Files\Filesystem::normalizePath($mountPoint['mountpoint']) . '/'; - if (strpos($normalized, $normalizedMountPoint) === 0) - return $targetDir; - } - } else if ($trash === false && $this->view->file_exists('/' . $user. '/files/' . $filePath)) { - return $targetDir; - } else if ($trash === true && $this->view->file_exists('/' . $user. '/files_trashbin/' . $filePath)) { - return $targetDir; - } - - return false; - } - - /** - * delete old keys - * - * @param string $user - */ - private function deleteOldKeys($user) { - $this->view->deleteAll($user . '/files_encryption/keyfiles'); - $this->view->deleteAll($user . '/files_encryption/share-keys'); - } - - /** - * create directories for the keys recursively - * - * @param string $path - */ - private function createPathForKeys($path) { - if (!$this->view->file_exists($path)) { - $sub_dirs = explode('/', $path); - $dir = ''; - foreach ($sub_dirs as $sub_dir) { - $dir .= '/' . $sub_dir; - if (!$this->view->is_dir($dir)) { - $this->view->mkdir($dir); - } - } - } - } -} |