a new approach to display the error message

2 files changed, 22 insertions, 1 deletions

diff --git a/lib/public/encryption/exceptions/genericencryptionexception.php b/lib/public/encryption/exceptions/genericencryptionexception.php
index be96450d431..e97f00c88bf 100644
--- a/lib/public/encryption/exceptions/genericencryptionexception.php
+++ b/lib/public/encryption/exceptions/genericencryptionexception.php
@@ -30,17 +30,26 @@ namespace OCP\Encryption\Exceptions;
  */
 class GenericEncryptionException extends \Exception {
 
+	/** @var string */
+	protected $hint;
+
 	/**
 	 * @param string $message
 	 * @param int $code
 	 * @param \Exception $previous
 	 * @since 8.1.0
 	 */
-	public function __construct($message = '', $code = 0, \Exception $previous = null) {
+	public function __construct($message = '', $code = 0, \Exception $previous = null, $hint = '') {
 		if (empty($message)) {
 			$message = 'Unspecified encryption exception';
 		}
 		parent::__construct($message, $code, $previous);
+
+		$this->hint = $hint;
+	}
+
+	public function getHint() {
+		return $this->hint;
 	}
 
 }
diff --git a/lib/public/encryption/iencryptionmodule.php b/lib/public/encryption/iencryptionmodule.php
index 0dda042d759..975e57744e9 100644
--- a/lib/public/encryption/iencryptionmodule.php
+++ b/lib/public/encryption/iencryptionmodule.php
@@ -119,4 +119,16 @@ interface IEncryptionModule {
 	 * @since 8.1.0
 	 */
 	public function getUnencryptedBlockSize();
+
+	/**
+	 * check if the encryption module is able to read the file,
+	 * e.g. if all encryption keys exists
+	 *
+	 * @param string $path
+	 * @param string $uid user for whom we want to check if he can read the file
+	 * @return boolean
+	 * @since 8.1.0
+	 */
+	public function isReadable($path, $uid);
+
 }