Author : Arawa company

Important

We would like to develop a new feature to Nextcloud (through a PR). If you want to go fast on this issue, please only tell us if you validate the benefit of this feature. If yes, we will submit it through a PR (we are not asking to develop a feature, we we propose to develop it ourselves).

Request for validation of a new feature

Location of the feature

We wish to add an additional option to the Sharing settings available for the instance admins (Settings > Administration > Sharing).

Description of the feature

• One of the current available option is Restrict users to only share with users from their groups
• If the box for this setting is checked, we would like to add a selection field + text below this setting:
  • the text explains what the selection field does:
    • if a group (or groups) is inserted in this field, e.g. the local group "Guests", then users in the Guest group will not be able to share with each other
      • we have suggested a text that can be changed later on, so that it can be as clear as possible (see the screenshots below)
  • the selection field will display all the user groups of the instance (local and directory/LDAP) and will allow admins to insert one or more groups in this field

Benefits of this feature

• more privacy
• more flexible and detailed sharing options
• make "waterproof": avoid that users see each other if they shouldn't

Use case to demonstrate a benefit

In this example, the organization checked the admin setting Restrict users to only share with users from their groups and use a “Guest” group in their directory (LDAP) to group all their external users. This LDAP Guest group would then be created in Nextcloud, meaning all the guests would be able to see each other, even though they are not from the same companies. This represents a loss of privacy.

This is one example among others.

Model / Mock-up

• New option when Restrict users to only share with users from their groups is checked
  

• Choice of groups affected by the exception
  

Do not hesitate if you have any questions regarding this subject.

Nextcloud form to request a new feature

Is your feature request related to a problem? Please describe.

• we use the sharing option Restrict users to only share with users from their groups (available in Settings > Administration > Sharing)
• however, we have one group that gathers users who must not see or share with each other
• problem: the option Restrict users to only share with users from their groups is useless because of this one group

Describe the solution you'd like

• If the box for this setting is checked, we would like to add a selection field + text below this setting:
  • the text explains what the selection field does:
    • if a group (or groups) is inserted in this field, e.g. the local group "Guests", then users in the Guest group will not be able to share with each other (we have suggested a text that can be changed later on, so that it can be as clear as possible (see the screenshots below))
  • the selection field will display all the user groups of the instance (local and directory/LDAP) and will allow admins to insert one or more groups in this field

Describe alternatives you've considered

• avoid groups containing users who should not see each other (lack of flexibility)

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As a reminder

We would like to develop a new feature to Nextcloud (through a PR). If you want to go fast on this issue, please only tell us if you validate the benefit of this feature. If yes, we will submit it through a PR (we are not asking to develop a feature, we we propose to develop it ourselves).