3 files changed, 15 insertions, 20 deletions

diff --git a/lib/private/encryption/manager.php b/lib/private/encryption/manager.php
index 8e080507c81..1a42646daf6 100644
--- a/lib/private/encryption/manager.php
+++ b/lib/private/encryption/manager.php
@@ -101,17 +101,17 @@ class Manager implements IManager {
 			throw new Exceptions\ModuleAlreadyExistsException($id, $displayName);
 		}
 
-		$defaultEncryptionModuleId = $this->getDefaultEncryptionModuleId();
-
-		if (empty($defaultEncryptionModuleId)) {
-			$this->setDefaultEncryptionModule($id);
-		}
-
 		$this->encryptionModules[$id] = [
 			'id' => $id,
 			'displayName' => $displayName,
 			'callback' => $callback,
 		];
+
+		$defaultEncryptionModuleId = $this->getDefaultEncryptionModuleId();
+
+		if (empty($defaultEncryptionModuleId)) {
+			$this->setDefaultEncryptionModule($id);
+		}
 	}
 
 	/**
@@ -158,7 +158,7 @@ class Manager implements IManager {
 	 * @return \OCP\Encryption\IEncryptionModule
 	 * @throws Exceptions\ModuleDoesNotExistsException
 	 */
-	public function getDefaultEncryptionModule() {
+	protected function getDefaultEncryptionModule() {
 		$defaultModuleId = $this->getDefaultEncryptionModuleId();
 		if (!empty($defaultModuleId)) {
 			if (isset($this->encryptionModules[$defaultModuleId])) {
@@ -182,12 +182,13 @@ class Manager implements IManager {
 	 */
 	public function setDefaultEncryptionModule($moduleId) {
 		try {
-			$this->config->setAppValue('core', 'default_encryption_module', $moduleId);
-			return true;
+			$this->getEncryptionModule($moduleId);
 		} catch (\Exception $e) {
 			return false;
 		}
 
+		$this->config->setAppValue('core', 'default_encryption_module', $moduleId);
+		return true;
 	}
 
 	/**
@@ -195,12 +196,8 @@ class Manager implements IManager {
 	 *
 	 * @return string
 	 */
-	protected function getDefaultEncryptionModuleId() {
-		try {
-			return $this->config->getAppValue('core', 'default_encryption_module');
-		} catch (\Exception $e) {
-			return '';
-		}
+	public function getDefaultEncryptionModuleId() {
+		return $this->config->getAppValue('core', 'default_encryption_module');
 	}
 
 	public static function setupStorage() {
diff --git a/lib/private/encryption/update.php b/lib/private/encryption/update.php
index f262099a3c5..a0b0af968c6 100644
--- a/lib/private/encryption/update.php
+++ b/lib/private/encryption/update.php
@@ -137,7 +137,7 @@ class Update {
 			$allFiles = array($path);
 		}
 
-		$encryptionModule = $this->encryptionManager->getDefaultEncryptionModule();
+		$encryptionModule = $this->encryptionManager->getEncryptionModule();
 
 		foreach ($allFiles as $file) {
 			$usersSharing = $this->file->getAccessList($file);
diff --git a/lib/private/files/storage/wrapper/encryption.php b/lib/private/files/storage/wrapper/encryption.php
index 0dc59cbb2a0..af48d3475c3 100644
--- a/lib/private/files/storage/wrapper/encryption.php
+++ b/lib/private/files/storage/wrapper/encryption.php
@@ -311,12 +311,10 @@ class Encryption extends Wrapper {
 				|| $mode === 'wb'
 				|| $mode === 'wb+'
 			) {
-				if (!empty($encryptionModuleId)) {
+				if ($encryptionEnabled) {
+					// if $encryptionModuleId is empty, the default module will be used
 					$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
 					$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
-				} elseif ($encryptionEnabled) {
-					$encryptionModule = $this->encryptionManager->getDefaultEncryptionModule();
-					$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
 				}
 			} else {
 				// only get encryption module if we found one in the header