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-rw-r--r--apps/files_encryption/lib/util.php74
1 files changed, 27 insertions, 47 deletions
diff --git a/apps/files_encryption/lib/util.php b/apps/files_encryption/lib/util.php
index d214d13de69..a1baecfb2f3 100644
--- a/apps/files_encryption/lib/util.php
+++ b/apps/files_encryption/lib/util.php
@@ -44,10 +44,10 @@ class Util {
private $client; // Client side encryption mode flag
private $publicKeyDir; // Dir containing all public user keys
private $encryptionDir; // Dir containing user's files_encryption
- private $keyfilesPath; // Dir containing user's keyfiles
- private $shareKeysPath; // Dir containing env keys for shared files
+ private $keysPath; // Dir containing all file related encryption keys
private $publicKeyPath; // Path to user's public key
private $privateKeyPath; // Path to user's private key
+ private $userFilesDir;
private $publicShareKeyId;
private $recoveryKeyId;
private $isPublic;
@@ -74,8 +74,7 @@ class Util {
'/' . $userId . '/' . $this->fileFolderName; // TODO: Does this need to be user configurable?
$this->publicKeyDir = '/' . 'public-keys';
$this->encryptionDir = '/' . $this->userId . '/' . 'files_encryption';
- $this->keyfilesPath = $this->encryptionDir . '/' . 'keyfiles';
- $this->shareKeysPath = $this->encryptionDir . '/' . 'share-keys';
+ $this->keysPath = $this->encryptionDir . '/' . 'keys';
$this->publicKeyPath =
$this->publicKeyDir . '/' . $this->userId . '.public.key'; // e.g. data/public-keys/admin.public.key
$this->privateKeyPath =
@@ -99,8 +98,7 @@ class Util {
if (
!$this->view->file_exists($this->encryptionDir)
- or !$this->view->file_exists($this->keyfilesPath)
- or !$this->view->file_exists($this->shareKeysPath)
+ or !$this->view->file_exists($this->keysPath)
or !$this->view->file_exists($this->publicKeyPath)
or !$this->view->file_exists($this->privateKeyPath)
) {
@@ -149,8 +147,7 @@ class Util {
$this->userDir,
$this->publicKeyDir,
$this->encryptionDir,
- $this->keyfilesPath,
- $this->shareKeysPath
+ $this->keysPath
);
// Check / create all necessary dirs
@@ -727,8 +724,8 @@ class Util {
}
if ($successful) {
- $this->view->rename($this->keyfilesPath, $this->keyfilesPath . '.backup');
- $this->view->rename($this->shareKeysPath, $this->shareKeysPath . '.backup');
+ $this->backupAllKeys('decryptAll');
+ $this->view->deleteAll($this->keysPath);
}
\OC_FileProxy::$enabled = true;
@@ -845,9 +842,9 @@ class Util {
break;
- case 'keyfilesPath':
+ case 'keysPath':
- return $this->keyfilesPath;
+ return $this->keysPath;
break;
@@ -1395,19 +1392,17 @@ class Util {
* add recovery key to all encrypted files
*/
public function addRecoveryKeys($path = '/') {
- $dirContent = $this->view->getDirectoryContent($this->keyfilesPath . $path);
+ $dirContent = $this->view->getDirectoryContent($this->keysPath . '/' . $path);
foreach ($dirContent as $item) {
// get relative path from files_encryption/keyfiles/
- $filePath = substr($item['path'], strlen('files_encryption/keyfiles'));
- if ($item['type'] === 'dir') {
+ $filePath = substr($item['path'], strlen('files_encryption/keys'));
+ if ($this->view->is_dir($this->userFilesDir . '/' . $filePath)) {
$this->addRecoveryKeys($filePath . '/');
} else {
$session = new \OCA\Encryption\Session(new \OC\Files\View('/'));
$sharingEnabled = \OCP\Share::isEnabled();
- // remove '.key' extension from path e.g. 'file.txt.key' to 'file.txt'
- $file = substr($filePath, 0, -4);
- $usersSharing = $this->getSharingUsersArray($sharingEnabled, $file);
- $this->setSharedFileKeyfiles($session, $usersSharing, $file);
+ $usersSharing = $this->getSharingUsersArray($sharingEnabled, $filePath);
+ $this->setSharedFileKeyfiles($session, $usersSharing, $filePath);
}
}
}
@@ -1416,16 +1411,14 @@ class Util {
* remove recovery key to all encrypted files
*/
public function removeRecoveryKeys($path = '/') {
- $dirContent = $this->view->getDirectoryContent($this->keyfilesPath . $path);
+ $dirContent = $this->view->getDirectoryContent($this->keysPath . '/' . $path);
foreach ($dirContent as $item) {
// get relative path from files_encryption/keyfiles
- $filePath = substr($item['path'], strlen('files_encryption/keyfiles'));
- if ($item['type'] === 'dir') {
+ $filePath = substr($item['path'], strlen('files_encryption/keys'));
+ if ($this->view->is_dir($this->userFilesDir . '/' . $filePath)) {
$this->removeRecoveryKeys($filePath . '/');
} else {
- // remove '.key' extension from path e.g. 'file.txt.key' to 'file.txt'
- $file = substr($filePath, 0, -4);
- $this->view->unlink($this->shareKeysPath . '/' . $file . '.' . $this->recoveryKeyId . '.shareKey');
+ $this->view->unlink($this->keysPath . '/' . $filePath . '/' . $this->recoveryKeyId . '.shareKey');
}
}
}
@@ -1455,27 +1448,17 @@ class Util {
}
$filteredUids = $this->filterShareReadyUsers($userIds);
- $proxyStatus = \OC_FileProxy::$enabled;
- \OC_FileProxy::$enabled = false;
-
//decrypt file key
- $encKeyfile = $this->view->file_get_contents($this->keyfilesPath . $file . ".key");
- $shareKey = $this->view->file_get_contents(
- $this->shareKeysPath . $file . "." . $this->recoveryKeyId . ".shareKey");
+ $encKeyfile = Keymanager::getFileKey($this->view, $this, $file);
+ $shareKey = Keymanager::getShareKey($this->view, $this->recoveryKeyId, $this, $file);
$plainKeyfile = Crypt::multiKeyDecrypt($encKeyfile, $shareKey, $privateKey);
// encrypt file key again to all users, this time with the new public key for the recovered use
$userPubKeys = Keymanager::getPublicKeys($this->view, $filteredUids['ready']);
$multiEncKey = Crypt::multiKeyEncrypt($plainKeyfile, $userPubKeys);
- // write new keys to filesystem TDOO!
- $this->view->file_put_contents($this->keyfilesPath . $file . '.key', $multiEncKey['data']);
- foreach ($multiEncKey['keys'] as $userId => $shareKey) {
- $shareKeyPath = $this->shareKeysPath . $file . '.' . $userId . '.shareKey';
- $this->view->file_put_contents($shareKeyPath, $shareKey);
- }
+ Keymanager::setFileKey($this->view, $this, $file, $multiEncKey['data']);
+ Keymanager::setShareKeys($this->view, $this, $file, $multiEncKey['keys']);
- // Return proxy to original status
- \OC_FileProxy::$enabled = $proxyStatus;
}
/**
@@ -1484,16 +1467,14 @@ class Util {
* @param string $privateKey private recovery key which is used to decrypt the files
*/
private function recoverAllFiles($path, $privateKey) {
- $dirContent = $this->view->getDirectoryContent($this->keyfilesPath . $path);
+ $dirContent = $this->view->getDirectoryContent($this->keysPath . '/' . $path);
foreach ($dirContent as $item) {
// get relative path from files_encryption/keyfiles
- $filePath = substr($item['path'], strlen('files_encryption/keyfiles'));
- if ($item['type'] === 'dir') {
+ $filePath = substr($item['path'], strlen('files_encryption/keys'));
+ if ($this->view->is_dir($this->userFilesDir . '/' . $filePath)) {
$this->recoverAllFiles($filePath . '/', $privateKey);
} else {
- // remove '.key' extension from path e.g. 'file.txt.key' to 'file.txt'
- $file = substr($filePath, 0, -4);
- $this->recoverFile($file, $privateKey);
+ $this->recoverFile($filePath, $privateKey);
}
}
}
@@ -1527,8 +1508,7 @@ class Util {
$backupDir = $this->encryptionDir . '/backup.';
$backupDir .= ($purpose === '') ? date("Y-m-d_H-i-s") . '/' : $purpose . '.' . date("Y-m-d_H-i-s") . '/';
$this->view->mkdir($backupDir);
- $this->view->copy($this->shareKeysPath, $backupDir . 'share-keys/');
- $this->view->copy($this->keyfilesPath, $backupDir . 'keyfiles/');
+ $this->view->copy($this->keysPath, $backupDir . 'keys/');
$this->view->copy($this->privateKeyPath, $backupDir . $this->userId . '.private.key');
$this->view->copy($this->publicKeyPath, $backupDir . $this->userId . '.public.key');
}