Hi everyone,
our (productive) Nextcloud instance is LDAP-integrated, therefor internal usernames are UUIDs, e.g. “DA38C804-9357-4FA1-A2CE-B4F06D5F0C26”.
I recently set up Circles, which allows users to create and self-managed group-like “circles” with which files and folders can be shared.
Setting up a circle and adding users to it works just fine.
The problem occurs when trying to share something with a circle, and the symptoms are as follows:
The circle shows up in the sharing interface autocomplete suggestions.
When selected, it’s not added to the shares list; instead, the following error appears at the top of the page:
An exception occurred while executing ‘INSERT INTO
oc_circles_shares(creation,circle_id,source,type,headers,author,cloud_id,unique_id,payload) VALUES(NOW(), ?, ?, ?, ?, ?, ?, ?, ?)’ with params [“8c2dc874d0d8ad”, “files”, “”, “{"author":"DA38C804-9357-4FA1-A2CE-B4F06D5F0C26","circleName":"testing","circleUniqueId":"8c2dc874d0d8ad","broadcast":"\\OCA\\Circles\\Circles\\FileSharingBroadcaster"}”, “DA38C804-9357-4FA1-A2CE-B4F06D5F0C26”, null, “f6f55049bfc50659d9139f7327110c59”, “{"id":54,"share":{}}”]: SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column ‘author’ at row 1
If you refresh the page, it then shows up in the folder/file shares. It’s also active, so the circle members have access to the shared object. But I have no idea what kind of errors can occur if this failing database record is missing.
This error does not occur when sharing from a local (non-LDAP) user, because the internal ‘author’ field there is a normal username that isn’t too long for the database.
So, I though this could maybe be fixed by modifying the database column accordingly, but I needed to ask before just breaking everything on the first try.
The affected table oc_circles_shares looks like this:
mysql> SHOW COLUMNS in oc_circles_shares;
+-----------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------------+------+-----+---------+----------------+
| id | int(10) unsigned | NO | PRI | NULL | auto_increment |
| unique_id | varchar(32) | YES | | NULL | |
| circle_id | varchar(64) | NO | | NULL | |
| source | varchar(15) | NO | | NULL | |
| type | varchar(15) | NO | | NULL | |
| author | varchar(32) | NO | | NULL | |
| cloud_id | varchar(128) | YES | | NULL | |
| headers | varchar(4000) | YES | | NULL | |
| payload | varchar(4000) | NO | | NULL | |
| creation | datetime | YES | | NULL | |
+-----------+------------------+------+-----+---------+----------------+
10 rows in set (0.01 sec)
Do I have any chance of fixing this without affecting existing users/shares?
Any help would be greatly appreciated.