User domain cluster UI page: handle mail field

[gsanchietti]

With an internal LDAP or Active Directory instance, users can be notified when their password is about to expire.
The mail field and the password expired information is not present inside the cluster UI, but it's available inside the User Portal.

Proposed solution:

• Add a password expired attribute so the admin can see problematic users.
• Show the mail address in the user list.
• Manage mail address during add or edit user, ensuring the mail is validated and can be removed.

See also
This feature request builds upon the solution discussed in issue #7229 and aims to integrate the discussed changes into the cluster web interface for better usability.

[gsanchietti]

Testing images:

• core: 3.6.2-dev.2
• samba:2.4.1-dev.1
• openldap: 2.3.1-dev.1

Install the custom core image:

curl https://raw.githubusercontent.com/NethServer/ns8-core/main/core/install.sh > install.sh 
bash install.sh ghcr.io/nethserver/core:3.6.2-dev.2
create-cluster rl1.leader.cluster0.gs.nethserver.net:55820 10.5.4.0/24 Nethesis,1234

Setup custom images for Samba and OpenLDAP:

redis-cli hset cluster/override/modules samba ghcr.io/nethserver/samba:2.4.1-dev.1
redis-cli hset cluster/override/modules openldap ghcr.io/nethserver/openldap:2.3.1-dev.1

[gsanchietti]

Test case 1: OpenLDAP, user list

• Install a clean machine, see installation instruction on this comment
• Install and configure an internal OpenLDAP
• Go to the User & Groups page
• Verify the administrator user has a non-expiry tag

Test case 2: OpenLDAP, user add

• After test case 1
• Create a new user and set a mail address
• Try to add an invalid address, an error must be displayed
• Add a valid mail address and save
• Verify the mail is shown inside the user list

Test case 3: OpenLDAP, user edit

• After test case 2
• Remove the mail address from the user and save
• Verify the mail field has been removed

Test case 4: Samba, user list

• Repeat test case 1 with Samba

Test case 5: Samba, user list

• Repeat test case 2 with Samba

Test case 6: Samba, user list

• Repeat test case 3 with Samba

Test case 7: OpenLDAP, expired users

• Move the date into the future date --set="+2 years"
• Access the OpenLDAP user list
• Verify expired users have a special tag

Test case 8: Samba, expired users

• After test case 7
• Access the Samba user list
• Verify expired users have a special tag