only collect detailed access list if it is really needed

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/public/Encryption/IEncryptionModule.php b/lib/public/Encryption/IEncryptionModule.php
index 6be9763c9c8..d96c6c8ba06 100644
--- a/lib/public/Encryption/IEncryptionModule.php
+++ b/lib/public/Encryption/IEncryptionModule.php
@@ -182,4 +182,14 @@ interface IEncryptionModule {
 	 */
 	public function isReadyForUser($user);
 
+	/**
+	 * Does the encryption module needs a detailed list of users with access to the file?
+	 * For example if the encryption module uses per-user encryption keys and needs to know
+	 * the users with access to the file to encrypt/decrypt it.
+	 *
+	 * @since 13.0.0
+	 * @return bool
+	 */
+	public function needDetailedAccessList();
+
 }