Store storage availability in database

Storage status is saved in the database. Failed storages are rechecked every
10 minutes, while working storages are rechecked every request.

Using the files_external app will recheck all external storages when the
settings page is viewed, or whenever an external storage is saved.

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/public/files/storage.php b/lib/public/files/storage.php
index 41218996382..ac3603e48d4 100644
--- a/lib/public/files/storage.php
+++ b/lib/public/files/storage.php
@@ -439,4 +439,24 @@ interface Storage {
 	 * @since 8.1.0
 	 */
 	public function changeLock($path, $type, ILockingProvider $provider);
+
+	/**
+	 * Test a storage for availability
+	 *
+	 * @since 8.2.0
+	 * @return bool
+	 */
+	public function test();
+
+	/**
+	 * @since 8.2.0
+	 * @return array [ available, last_checked ]
+	 */
+	public function getAvailability();
+
+	/**
+	 * @since 8.2.0
+	 * @param bool $isAvailable
+	 */
+	public function setAvailability($isAvailable);
 }