1 files changed, 49 insertions, 0 deletions
diff --git a/lib/private/Repair/NC20/EncryptionLegacyCipher.php b/lib/private/Repair/NC20/EncryptionLegacyCipher.php
new file mode 100644
index 00000000000..89473ffd5e8
--- /dev/null
+++ b/lib/private/Repair/NC20/EncryptionLegacyCipher.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OC\Repair\NC20;
+
+use OCP\Encryption\IManager;
+use OCP\IConfig;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class EncryptionLegacyCipher implements IRepairStep {
+	/** @var IConfig */
+	private $config;
+	/** @var IManager */
+	private $manager;
+
+	public function __construct(IConfig $config,
+		IManager $manager) {
+		$this->config = $config;
+		$this->manager = $manager;
+	}
+
+	public function getName(): string {
+		return 'Keep legacy encryption enabled';
+	}
+
+	private function shouldRun(): bool {
+		$versionFromBeforeUpdate = $this->config->getSystemValueString('version', '0.0.0.0');
+		return version_compare($versionFromBeforeUpdate, '20.0.0.0', '<=');
+	}
+
+	public function run(IOutput $output): void {
+		if (!$this->shouldRun()) {
+			return;
+		}
+
+		$masterKeyId = $this->config->getAppValue('encryption', 'masterKeyId');
+		if ($this->manager->isEnabled() || !empty($masterKeyId)) {
+			if ($this->config->getSystemValue('encryption.legacy_format_support', '') === '') {
+				$this->config->setSystemValue('encryption.legacy_format_support', true);
+			}
+		}
+	}
+}