Addons:ViewAll Permission

[mixedpuppy]

Problem

AMO's scanning infrastructure needs read-only API access to addon content
across all statuses (approved, disabled, blocked, deleted) and channels
(listed, unlisted), including XPI downloads and listing metadata.

No permission set grants this today without also granting reviewer tools web
UI access. ReviewerTools:View and ReviewerTools:ViewUnlisted gate both
API read access and the reviewer tools website. There is no way to grant one
without the other.

Goal

Create Addons:ViewAll: a single read-only API permission covering any addon
regardless of status or channel, without granting reviewer tools web access.
It replaces the combination of ReviewerTools:View,
ReviewerTools:ViewUnlisted, and Addons:ViewDeleted for scanner and
API-only use cases.

Target permission set

Permission	Purpose
Addons:ViewAll	Read any addon's metadata and versions via API (new)
Addons:FileDownload	Download XPI files in any state (existing)
Addons:SourceDownload	Download developer-submitted source (existing, optional, requires legal review)

What Addons:ViewAll does NOT grant

• Write access (no edit, delete, review actions)
• Reviewer tools web UI access
• Scanner results, abuse reports, or admin panel access
• XPI file downloads (requires Addons:FileDownload)

Acceptance criteria

A user with only Addons:ViewAll:

• Can retrieve any addon via API regardless of status
• Can list and retrieve versions, including unlisted and deleted
• Can discover file IDs needed for XPI downloads
• Cannot access the reviewer tools web UI
• Cannot perform write operations
• Cannot download XPI files without Addons:FileDownload
• Cannot take review actions

A user with Addons:ViewAll + Addons:FileDownload:

• Can download XPI files for any addon in any state

Notes

Addons:ViewAll should also surface disabled/deleted addons in search results
(/api/v5/addons/search/). The search endpoint uses Elasticsearch and has its
own filtering, so this may require separate work.

┆Issue is synchronized with this Jira Task

[eviljeff]

Addons:ViewAll should also surface disabled/deleted addons in search results (/api/v5/addons/search/).

the elasticsearch index only contains publicly accessible add-on data, and has no auth. To include all add-ons in the index would increase the size by an order of magntitude, with performance and cost implications. And to include auth would require database queries (the search endpoint purposely carries out no database queries), with it's own perf problems.

[willdurand]

Also FWIW I've been using Addons:ReviewUnlisted to get access to unlisted versions in the scanners.