Media module and Domain Access

No. That would require the File Access API to be completed first.

Reference: #1227706: Add a file entity access API

File entity access API was committed in October 2012.

So that suggests a Domain Files module. Anyone care to write it?

I'm working on a project that may require it, so I may be able to take a stab at it. Will probably need some guidance. Any idea off the top of your head what's required / where to start?

It would be a Domain Files module, and it needs the following elements (at the least).

* Data storage for the file access records. You could, perhaps, use Field API, though DA does not. If you don't use Field API, you need a {domain_file} table that stores your access information. Model it on {node_access}.

* A UI for selecting file access. Either a custom field or a FieldAPI field. Custom fields are easier to control, IMO.

* Implement hook_file_entity_access() for individual file actions.

* Implement hook_query_file_entity_access_alter() for file listings.

* Optional: a listing page for viewing files per domain.

I've started a sandbox project over at http://drupal.org/sandbox/mstrelan/1987490 which is working under the most basic conditions. Any feedback would be greatly appreciated.

TODO list

• Default behaviour when user doesn't have access to set domain access
• Implement hook_query_file_entity_access_alter() for file listings
• "Restrict node views for administrators" doesn't apply to files and perhaps should
• Allow for different defaults per file type

Other considerations

• Review if any additional code from domain_form_alter() is relevant, didn't copy it all across. I suspect most of it is handling for edge cases which I'll eventually need.
• Does this module need to do anything about create/delete/update actions in hook_file_entity_access()?
• What happens to media files added from YouTube, etc, or from remote URLs?
• Perhaps media files added from nodes should inherit domain access settings from the node. Not sure I want to get in to that especially since files will be saved before the node is saved.
• Perhaps media files should just default to "all affiliates" and can be overridden after saving.

You probably also need hook_field_extra_fields, assuming you don't use FieldAPI fields for data storage.

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