Fixes from the review of the admin part:
- GET /api/admin/policy reads the policy and its version together; an
identity check waiting on the store let another replica's change pair
the old policy with the new ETag, and a save with it then won.
- A policy save answers with the stored policy and its ETag, and the
policy, organisation, plugins and themes pages continue from that
instead of reading it back from an instance that may not have it yet.
- A stored policy that doesn't parse keeps its version, so a save can
replace it instead of answering 409 forever.
- A reload of another replica's change throws when this replica's writes
kept landing while it read, so the change poller tries again; a write
whose reload raced it reads the document again instead of applying its
older result.
- Dropping a deleted plugin from the policy rereads policy.json first in
local mode, as every other write does.
- New updateAdminConfig(key, change) builds a value on the stored one.
The policy route's test mocks gain getPolicyWithVersion.
The three admin login limiters (5 per address and 50 overall in one
reservation, 5 per known device) keep their numbers and still don't count
refused attempts, but live in the store: memory in this process as before,
or the shared store with several replicas. checkRateLimit and
checkDeviceRateLimit are async now; the login route awaits them and
answers 503 "Sign-in is temporarily unavailable" when the store can't be
reached. The two limiter tests gain await and reset the store's counters,
which vi.resetModules no longer clears.
The admin code tells a store outage by the error's name, since the store
may come from another bundle's copy of the module.
The admin pages save the whole policy from the draft they loaded. A
save from a page opened before another tab's or another admin's save,
or before a deleted plugin was dropped from the policy, used to put the
older policy back. GET /api/admin/policy now sends the policy version as
an ETag; the policy, organisation, plugins and themes pages send it back
as If-Match, and a save based on an older version answers 409 and keeps
the draft on the page. A PUT without If-Match replaces the policy as
before. Deleting a plugin or theme changes only its id in the stored
policy, and a policy import compares against what it replaces.
Test mocks of the config manager gain getPolicyVersion and updatePolicy,
which the route and the extension cleanup now call.
Linus Rath