ownCloud

Enable users to upload files from their private storage directly into Moodle. Supports Nextcloud and ownCloud!
Now in core: We are proud to announce that, starting with Moodle 3.6, this plugin has become part of Moodle core.
Existing users can migrate easily using the latest version of this plugin. New users can use the new plugin immediately. See the repository documentation in the Moodle Docs for details.
Enable users to directly upload files from their private ownCloud/Nextcloud storage into Moodle.
Prerequisites
Moodle 3.3.2
ownCloud 10.0.1 (or newer)
OAuth 2 App from Marketplace
HTTPS-secured connection
Moodle 3.3.2
Nextcloud 14.0.4 (or newer)
HTTPS-secured connection
Features:
The repository is available anywhere where users deal with uploading files . Users can choose whether they want to UPLOAD a file or LINK to it:
UPLOAD works as usual, i.e. it uploads a copy, except that you don’t need to download it first! Avoid the hassle of having to download files onto your computer first before you can re-upload them into Moodle – particularly useful on mobile devices, but also sweet on the desktop!
LINK let’s you select a particular file, but doesn’t create a copy. That means that, if you change the file in ownCloud/Nextcloud later, it will magically change in Moodle, too. In the background this feature automatically creates a public link in ownCloud/Nextcloud and uses that link in Moodle – no further manual interaction required.
ACCESS CONTROLLED LINKS  means that the files reside at ownCloud/Nextcloud instead of being copied to Moodle. Nevertheless, you can be sure that, once uploaded, a file cannot be changed by students, i.e., even if they were the owner, their write permissions are revoked. Files are owned by a special ownCloud/Nextcloud account for Moodle that is responsible for granting correct access rights.
Your institution has multiple ownCloud and/or Nextcloud instances ? As an administrator you can add as many instances as you require!
This plugin does not store any user’s private passwords in order to authenticate against ownCloud/Nextcloud. Instead, it leverages the passwordless workflow of OAuth 2!
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