Allow users to add content based on asset publishers

Issue

• Require permissions for a user to get an 'Add' option on a specific Asset Publisher.
  Steps to reproduce:
  1) Role-1: User-1 is the Role-1 holder and Role-2: User-2 is the Role-2 holder.
  2) Add an Asset Publisher to Page1 -> Asset publisher -> Permission -> Check all permission for Role-1
      Add an Asset Publisher to Page2 -> Asset publisher -> Permission -> Check all permission for Role-2
  Observed behavior: User-1 and User-2 can see the Add button on both Page 1, Page 2, if users enable the following: Site and Asset Library Administration> Content & Data > Web Content > Resource Permissions > Add Web Content
  (Here, web content has been added to asset publishers, hence, permission for web content has been granted. However, users can grant 'add permission' to any other assets as well.)
  Expected Behavior:
  User-1: The Add button for 'Asset Publisher' is shown only on Page 1, not on Page 2
  User-2: The Add button for 'Asset Publisher' is shown only on Page 2, not on Page 1.

Environment

• Liferay DXP 7.4

Resolution

• The observed behavior is the expected behavior of the portal, and the requested requirement here cannot be achieved with existing OOTB functionalities.
• However, as a workaround, if users disable the existing AssetPublisherPortletToolbarContributor (most likely through a component blacklist), copies all the logic from the existing one, but only invokes that copied logic when certain other conditions are met (such as some additional permission users add to asset publisher, some property of the page, etc.), that will likely achieve what their need.

Additional Information

• We have a different channel called 'Global Service Team' for any additional assistance with code implementation or development.