Disappearing shares! "remote user" removed the share for [folder]

[madengineer]

Hi there,

In the last couple of weeks I’ve twice had a folder share just ‘disappear’ from ownCloud - in each case a different user and different folder. The user losing access sees this in their activity log:

There is nothing in the ownCloud log file matching this timestamp.

There is nothing obviously relevant in the Apache server access or error logs matching this timestamp.

Does anyone have any idea what on earth “remote user” refers to, and why this might have occurred twice?

Many thanks for any suggestions!

Steps to reproduce

1. Share an existing folder with a recently created user.

Expected behaviour

The user should be able to access the shared folder.

Actual behaviour

After a few days, the shared folder “disappears” from the user’s owncloud without explanation. In the activity log, they see something like:

Server configuration

Operating system:
Raspbian GNU/Linux 11 (bullseye)

Web server:
Server version: Apache/2.4.54 (Raspbian)

Database:
mysql Ver 15.1 Distrib 10.5.15-MariaDB, for debian-linux-gnueabihf (armv8l) using EditLine wrapper

PHP version:
PHP 7.4.33 (cli) (built: Nov 8 2022 11:40:37) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies

ownCloud version: (see ownCloud admin page)
ownCloud 10.6.0 (stable)

Updated from an older ownCloud or fresh install:

Where did you install ownCloud from:

Signing status (ownCloud 9.0 and above):
No errors have been found.

The content of config/config.php:

<?php
$CONFIG = array (
  'instanceid' => '...',
  'passwordsalt' => '...',
  'secret' => '...',
  'trusted_domains' =>
  array (
    0 => '...',
    1 => '...',
    2 => '...',
  ),
  'datadirectory' => '...',
  'overwrite.cli.url' => '...',
  'dbtype' => 'mysql',
  'version' => '10.6.0.5',
  'dbname' => '...',
  'dbhost' => 'localhost',
  'dbtableprefix' => 'oc_',
  'dbuser' => '...',
  'dbpassword' => '...',
  'logtimezone' => 'UTC',
  'installed' => true,
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'ssl',
  'mail_from_address' => 'owncloud',
  'mail_domain' => '...',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpauth' => 1,
  'mail_smtphost' => '...',
  'mail_smtpport' => '465',
  'mail_smtpname' => '...',
  'mail_smtppassword' => '...',
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2,
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.locking' => '\\OC\\Memcache\\APCu',
);

List of activated apps:

Enabled:
  - activity: 2.6.0
  - announcementcenter: 1.2.1
  - audioplayer: 2.8.4
  - brute_force_protection: 1.1.0
  - camerarawpreviews: 0.7.8
  - checksum: 0.3.5
  - comments: 0.3.0
  - configreport: 0.2.0
  - dav: 0.6.0
  - external: 1.4.0
  - federatedfilesharing: 0.5.0
  - federation: 0.1.0
  - files: 1.5.2
  - files_external: 0.7.1
  - files_mediaviewer: 1.0.4
  - files_pdfviewer: 0.11.2
  - files_sharing: 0.14.0
  - files_texteditor: 2.3.0
  - files_trashbin: 0.9.1
  - files_versions: 1.3.0
  - firstrunwizard: 1.2.0
  - gallery: 16.1.1
  - guests: 0.9.0
  - impersonate: 0.5.0
  - market: 0.6.0
  - notifications: 0.5.2
  - oauth2: 0.4.4
  - provisioning_api: 0.5.0
  - systemtags: 0.3.0
  - templateeditor: 0.4.0
  - updatenotification: 0.2.1
Disabled:
  - encryption
  - user_external

Are you using external storage, if yes which one: No

Are you using encryption: No

Are you using an external user-backend, if yes which one: No

Logs

Web server error log

Nothing matching timestamp in activity log message

ownCloud log (data/owncloud.log)

Nothing matching timestamp in activity log message

Browser log

[jvillafanez]

The share likely had an expiration date. Once the share expires, you can’t access to it any longer.

There have been some changes in the wording in recent releases, so you’re encourage to update your installation. Note that there are some known issues with 10.12 so check if you could be affected by those first