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Plugins

owncloud.online consists of a core and apps. Some of these apps are part of the server and ship with it, such as files, sharing, deleted files, versions and DAV. Everything else is a plugin: an app that is maintained and versioned on its own and that you install, update and remove through the Marketplace without replacing the server. The details are in Managing apps.

Apps that require an API key

Some apps only show up in the Marketplace when an API key is entered in the Market app. You get the key from BW-Tech GmbH; how to enter it is described under Apps that require an API key. In the overview, these apps are marked "API key".

Overview

Every app has its own page with requirements, installation and setup.

Security and login

App What it does Availability
2-Factor Authentication With this app, owncloud.online asks for a six-digit code after the password when someone logs in through the browser. Marketplace
Password Policy The app defines what passwords must look like: for user accounts and for passwords on public links. Marketplace
Brute-Force Protection The app temporarily blocks logins when too many failed attempts for one account come from the same IP address. Marketplace
OAuth2 The app turns owncloud.online into an OAuth 2.0 authorization server. Marketplace
OpenID Connect The app logs people in through an external identity provider that speaks OpenID Connect, for example Keycloak, AD FS, or Microsoft Entra ID. The provider then manages passwords, multi-factor rules, and account locks; owncloud.online only checks its tokens. Marketplace
SAML/SSO Integration With this app, people log in with single sign-on through a SAML 2.0 identity provider (IdP), for example a university's or a company's. API key
LDAP Integration The app connects owncloud.online to an LDAP directory or Active Directory. Marketplace
Impersonate With this app, administrators, and optionally group admins, temporarily log in as another account. Marketplace

Data protection

App What it does Availability
Default encryption module The encryption app encrypts the content of every file before owncloud.online writes it to storage, and decrypts it on read. Marketplace
Anti-Virus The files_antivirus app has a virus scanner check every uploaded file before owncloud.online stores it. Marketplace
BW-Tech File Firewall The file_firewall app blocks file access according to rules you define: by IP range, group, device, time of day, file size, file type, tag, or type of request. API key
Audit Log The audit_log app records who did what and when: logins, file access, shares, changes to accounts and groups, tags, comments, enabling and disabling apps, and every occ command. API key

Files and storage

App What it does Availability
Windows Network Drive (Custom) The app mounts shares from Windows and Samba file servers as external storage in owncloud.online. API key
External Storage: S3 The app mounts a bucket in Amazon S3 or an S3-compatible object store as a folder in the Files app. Marketplace
S3 Primary Object Storage With this app, owncloud.online stores the content of every file in an S3 bucket instead of the data directory. Marketplace
Auto Expire Auto Expire cleans up old files automatically. API key
Workflow Workflow assigns tags automatically on upload, based on rules, and deletes files with a certain tag after a set period. API key
Text Editor The Text Editor opens text files right in the browser and saves changes back to the file. Marketplace
PDF Viewer The PDF Viewer shows PDF files in the browser instead of downloading them. Marketplace
Media Viewer The Media Viewer shows pictures and videos in the browser, full screen, with paging, rotating, zooming, and video controls. Marketplace
Gallery Gallery shows the pictures in a folder as an album in a grid. Marketplace

Collaboration and office

App What it does Availability
Office (Collabora Online) Office (Collabora Online) connects owncloud.online to a Collabora Online server. API key
ONLYOFFICE With ONLYOFFICE, users create and edit documents, spreadsheets, presentations, and PDF forms in the browser, alone or together with others at the same time. Marketplace
Collabora Online With this app, users edit text documents, spreadsheets, and presentations in the browser. Marketplace
Calendar Calendar is the web interface for the CalDAV server built into owncloud.online. API key
BWTalk BWTalk adds chat as well as audio and video calls to owncloud.online: one-to-one and group conversations, public rooms with a guest link, screen sharing, and files from the instance right in the chat. API key
Guests With Guests, users share files and folders with people outside the organization without anyone creating an account first. Marketplace
Custom Groups With this app, users create their own groups, for example for a project or a team, and share files with all members at once. Marketplace
Schwarzes Brett Schwarzes Brett (German for "notice board") is a shared bulletin board for schools and teams. API key

Administration and tools

App What it does Availability
Market With the Market app, admins install, update, and remove apps in the web interface. Included in core
Admin Config Report The app collects the configuration of an instance in one JSON file: version, apps, database, PHP, external storage, and the contents of config.php. Marketplace
owncloud.online Theme The theme defines the look of owncloud.online: colors, logo, login page, and email header. API key
First run wizard The app shows every account a welcome window over the Files view after the first login. Marketplace
Announcement Center With this app, admins send messages to all accounts, for example about a maintenance window or a changed procedure. Marketplace
Activity The app records what happens to files and folders: new, changed, deleted, and restored files, shares, comments, tags, and downloads through public links. Marketplace
Notifications The app receives messages from other apps, shows them under the bell in the top right corner, and passes them on to the desktop and mobile clients. Marketplace
AI Documents AI Documents analyzes documents with an AI service that you choose. Marketplace
MCP Connector The MCP Connector turns an owncloud.online instance into a server for the Model Context Protocol (MCP). Included in core

Plugins during a server update

During a server update, the risk is not the core but the plugins: an app that no longer fits the new server version stops the update. That is why occ upgrade first runs the step Upgrade app code from the marketplace. It sorts all installed apps into three groups (compatible, incompatible, missing: directory gone, database entry still there) and then tries to bring them to a matching version through the Marketplace, in the order incompatible, missing, compatible.

What happens next depends on the result:

  • If an incompatible or missing app is left over, the update stops ("Upgrade is not possible"). Before that, the output lists every affected app with the matching occ app:disable command. Work through the list and run occ upgrade again.
  • If a compatible app could not be updated, the update continues; the output says "App was not updated: …".

On a minor server update, the server does not move apps to a new major version on its own. If you want that:

bash
sudo -u www-data php8.4 occ upgrade --major

Two things that are easy to miss during an update:

  • apps-external/ is part of the code tree, not of the data directory. A backup of the data directory therefore does not contain the plugins you installed, see Moving to another server.
  • If the directory of an app that is already loaded is replaced with a newer version while the server is running, occ itself can no longer start. Turn on maintenance mode before you swap the directory, see Backups and updates.

Settings in config.php

Key Default Meaning
appstoreurl https://marketplace.owncloud.online Address of the Marketplace. The value local or a file:// address switches to a catalog that works without internet access
apps_paths not set List of app directories. The first entry with 'writable' => true receives all new installations. Without the key, this is apps/
has_internet_connection true With false, the Market app refuses all access ("The Internet connection is disabled."), and a server update disables the Market app
upgrade.automatic-app-update true With false, occ upgrade does not contact the Marketplace. Apps stay as they are; you install updates by hand afterwards
operation.mode single-instance Any other value prevents installing apps through the web interface and through occ
marketplace.key not set API key for the Marketplace. If it is set here, it can no longer be changed in the Market app

Set and check them like any other system key:

bash
sudo -u www-data php8.4 occ config:system:set appstoreurl \
  --value https://market.example.com
sudo -u www-data php8.4 occ config:system:get appstoreurl

Troubleshooting

Symptom Cause Fix
The Market app shows "Installing and updating Apps is not supported!" with the addition "This is a clustered setup or the web server has no permissions to write to the apps folder." No app directory is writable, or operation.mode is not single-instance Add an entry with 'writable' => true to apps_paths; give the directory to the web server user; check operation.mode
occ market:install stops with "Installing apps is not supported because the app folder is not writable." Same cause Same fix
"Unknown app (%s)" The ID is not in the catalog of the configured Marketplace, or the app requires an API key Check the ID with occ market:list, check appstoreurl and the API key
"No compatible version for %s" No version of the app fits the running server version Check the server version with occ status. Installing the package by hand does not help: the app would stop the next occ upgrade
The Market app reports an update, market:upgrade does nothing It is a major update; without --major it is skipped occ market:upgrade <app_id> --major
A new version does not show up in the Market app The catalog is cached for 30 minutes In the Market app, choose Settings → Clear cache and reload the page
"The Internet connection is disabled." has_internet_connection is false Change the key, or switch to a local catalog with appstoreurl and install packages with --local
"Shipped apps cannot be uninstalled" The app ships with the server occ app:disable <app_id> instead of market:uninstall
"Market app can not uninstall itself." The Market app is supposed to remove itself Not possible; only occ app:disable market
occ upgrade stops with "Upgrade is not possible" Incompatible or missing apps that the Marketplace could not fix Run the occ app:disable commands from the output, then run occ upgrade again
During the update: "Market app is unavailable for updating of apps." The Market app is disabled occ app:enable market, then occ market:upgrade --all
After the update, an app is missing from the list It was disabled as incompatible occ app:list --disabled shows it with its version; enable it again after updating the app
No notification about new app versions The check runs as a background job Check cron, see Background jobs (cron)
Every occ call fails with OC\NeedsUpdateException after an app directory was replaced The app is loaded at the start of every call Turn on maintenance mode, see Backups and updates

If the cause is still unclear, check the server log, see Server log and error messages.

Reporting a problem

Report problems with the server itself or with the Market app at https://github.com/BWTECH-github/owncloud.online/issues. For all other plugins, especially apps that require an API key, contact BW-Tech GmbH support (https://bw.tech).

A useful report contains:

bash
# server version
sudo -u www-data php8.4 occ status

# version and state of the affected app
sudo -u www-data php8.4 occ app:list

# system configuration; sensitive values are replaced with a placeholder
# (only --private would show them in plain text)
sudo -u www-data php8.4 occ config:list system

Add the server log entries from the time of the error (Server log and error messages) and the steps that reproduce the problem.