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fix migration to new encryption

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This commit is contained in:
Björn Schießle 2013-05-17 17:29:32 +02:00
parent bdf74090fc
commit eaa61b8539
4 changed files with 18 additions and 48 deletions
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40
apps/files_encryption/ajax/encryptall.php
View file

@ -1,40 +0,0 @@
<?php
/**
* Copyright (c) 2013, Sam Tuke <samtuke@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or later.
* See the COPYING-README file.
*
* @brief Script to handle manual trigger of \OCA\Encryption\Util{}->encryptAll()
*/
use OCA\Encryption;
\OCP\JSON::checkAppEnabled( 'files_encryption' );
\OCP\JSON::callCheck();
$return = false;
if (
isset( $_POST['encryptAll'] )
&& ! empty( $_POST['userPassword'] )
) {
$view = new \OC_FilesystemView( '' );
$userId = \OCP\User::getUser();
$util = new \OCA\Encryption\Util( $view, $userId );
$session = new \OCA\Encryption\Session( $view );
$publicKey = \OCA\Encryption\Keymanager::getPublicKey( $view, $userId );
$path = '/' . $userId . '/' . 'files';
$util->encryptAll( $publicKey, $path, $session->getLegacyKey(), $_POST['userPassword'] );
$return = true;
} else {
$return = false;
}
// Return success or failure
( $return ) ? \OCP\JSON::success() : \OCP\JSON::error();

2
apps/files_encryption/hooks/hooks.php
View file

@ -88,7 +88,7 @@ class Hooks {
// This serves to upgrade old versions of the encryption
// app (see appinfo/spec.txt)
if (
$util->encryptAll( $publicKey, '/' . $params['uid'] . '/' . 'files', $session->getLegacyKey(), $params['password'] )
$util->encryptAll( '/' . $params['uid'] . '/' . 'files', $session->getLegacyKey(), $params['password'] )
) {
\OC_Log::write(

21
apps/files_encryption/lib/crypt.php
View file

@ -169,7 +169,7 @@ class Crypt {
* @return true / false
*/
public static function isLegacyEncryptedContent( $data, $relPath ) {
// Fetch all file metadata from DB
$metadata = \OC\Files\Filesystem::getFileInfo( $relPath, '' );
@ -683,15 +683,26 @@ class Crypt {
$decrypted = $bf->decrypt( $content );
$trimmed = rtrim( $decrypted, "\0" );
return $trimmed;
return $decrypted;
}
private static function legacyBlockDecrypt($data, $key='',$maxLength=0) {
$result = '';
while (strlen($data)) {
$result.=self::legacyDecrypt(substr($data, 0, 8192), $key);
$data = substr($data, 8192);
}
if ($maxLength > 0) {
return substr($result, 0, $maxLength);
} else {
return rtrim($result, "\0");
}
}
public static function legacyKeyRecryptKeyfile( $legacyEncryptedContent, $legacyPassphrase, $publicKeys, $newPassphrase, $path ) {
$decrypted = self::legacyDecrypt( $legacyEncryptedContent, $legacyPassphrase );
$decrypted = self::legacyBlockDecrypt( $legacyEncryptedContent, $legacyPassphrase );
// Encrypt plain data, generate keyfile & encrypted file
$cryptedData = self::symmetricEncryptFileContentKeyfile( $decrypted );

3
apps/files_encryption/lib/util.php
View file

@ -652,11 +652,10 @@ class Util {
/**
* @brief Encrypt all files in a directory
* @param string $publicKey the public key to encrypt files with
* @param string $dirPath the directory whose files will be encrypted
* @note Encryption is recursive
*/
public function encryptAll($publicKey, $dirPath, $legacyPassphrase = null, $newPassphrase = null) {
public function encryptAll($dirPath, $legacyPassphrase = null, $newPassphrase = null) {
if ($found = $this->findEncFiles($dirPath)) {