Nextcloud integration should allow the use of aliases to files in repository

Prerequisite for testing 1. Docker 2. ngrok For instance, use this ngrok for nextcloud: ngrok http --region=in 8081   Setup Nextcloud instance 1. Using docker (make sure docker is installed in your machine), run the command below: docker run -d -p 8081 : 80 nextcloud You should get the latest version of nextcloud installed on your machine. Access it using say, http://localhost:8081 (note the port used its 8081, you may use whatever port available in your machine, but make sure to change it first in the docker command) 2. Create the admin user and login to the nextcloud instance. 3. Now access the config/config.php file of your Nextcloud instance from the terminal using: docker exec -it <CONTAINER ID>  bash   Where ID is the container ID of your Nextcloud instance( you may get it from 'docker ps'  command)   After this open config/config.php 4. Update the 'trusted_domains' array and add the url to the nextcloud instance generated by ngrok (ex. '23ba1b00d3fa.in.ngrok.io'): array ( 0 => 23ba1b00d3fa.in.ngrok.io ) 5.  Update the 'overwrite.cli.url' with: 'overwrite.cli.url' => 'http://23ba1b00d3fa.in.ngrok.io' 6. Save the changes in the config.php and access the nextcloud instance in the browser (ex. https://23ba1b00d3fa.in.ngrok.io ) 7. Navigate to Settings -> Security page 8. Under OAuth 2.0 clients fill up the details like:       a) Name: Moodle       b) Redirection URI: http://localhost/m/pg_stable_master/admin/oauth2callback.php       The redirection URL is your moodle URL + admin/oauth2callback.php 9. Click on "Add" button, which would generate Client Identifier a Secret. Copy both values which are required in future steps. 10. Create a teacher user     username: t1     password: test     Create a student user      username: s1      password: test   Configure Moodle instance 1. Log in to moodle as admin. 2. Navigate to Site Administration -> Server -> OAuth 2 services 3. In the "Create new service" section select Nextcloud. 4. Now fill the Client ID (copy it from step 4 of Nextcloud setup instance) 5. Fill the Client secret (copy it from step 4 of Nextcloud setup instance) 6. Fill in the "Service base URL". This has to be https address. Kindly refer to the ngrok https address which you executed in the prerequisite section. Use the https URL in "Service base URL". 7. Click on the button "Save changes" 8. Click on "System account connected" section of Nextcloud. And login as an admin account of Nextcloud. 9. Navigate to: Site administration -> Plugins -> Repositories -> Manage repositories 10. Select Nextcloud as "Enabled and visible". 11. Click on the "Settings" link right next to "Enable and visible" option. 12. Click the button "Create a repository instance". 13. Give a name to your repo: Nextcloud repo        Select issuer as Nextcloud        Supported files and Default return types as default.   Start testing 1. Create a course and enroll a teacher and student. Make sure you have logged out of the Nextcloud instance from your browser. 2. Login as a teacher and navigate to "Private files". 3. You should see Nextcloud repo. Login as a teacher instance in Nextcloud. Remember to have same username for the teacher in Nextcloud and Moodle. 4. Now click on a file from Nextcloud repo 5. User should see a pop-up with 3 different options. verify that "Link to the file" is in these options. 6. Select the option "Link to the file". verify that you can see a warning message: " Warning: This file would become public." 8. Click on "Select this file" button. 9. The file should be successfully added to the Private files area. 10. Download the file from the Private files area. verify that the file was succesfully downloaded verify that the content of the downloaded file is the same as the original file in the nextcloud instance. 11. Go to the nextcloud instance and login as t1 12. Locate the file that was previously added in the Private files area  and modify its content. 13. Go back to the Moodle instance as t1. 14. Navigate to 'Private files' and download the same file once again. verify that the file was succesfully downloaded verify that the content of the downloaded file is the same as the original file in the nextcloud instance (has the recent modifications).