A reservation id was never a secret and could not have been one. An upload
token is base64url(payload) followed by its signature, so a client can read
every claim out of its own token, and the two R2 init routes hand their
reservation ids to the client outright. The asset route takes a reservation
id from the request body and deleted it on the strength of that id and the
billed user alone, and every hold an account owns is billed to the same user.
So a caller could start a Bunny upload, read the id out of the token they
were just given, quote it while attaching a one byte image or even a bare
YouTube link, and have the quota handed back while the upload carried on.
Repeat and a trial worth three gigabytes uploads as much as it likes for as
long as Bunny takes to report a figure of its own. Signing the id rather than
handing it over bought nothing, because signing is not hiding.
A hold now records what it was opened for and is only ever consumed by that
flow, so naming one is no longer enough to drop it.
Guests hold against the workspace owner's quota rather than their own and had
no way to give it back: the release was gated on being signed in. Declaring a
size and walking away cost the guest nothing and cost the owner their whole
remaining allowance for two hours. The guest grant now carries the reservation
and the declared size, bound to the Bunny video as well as to ours, so
cancelling gives the quota back and costs them the upload it stood for. What a
guest can hold without cancelling lapses in half an hour rather than two hours.
The in-transaction fallback check counted the account's Bunny storage as zero
on a Bunny upload, because the figure was only prefetched for R2 providers and
that branch was unreachable for Bunny until this PR made it reachable. On an
account whose storage is all Bunny that was a check that could not fail. It is
prefetched for every provider that can reach the fallback now.
Second pass over the suite, driven by the inventory in the gaps document. Nine
agents wrote suites in parallel against private databases, then a tenth read all
of it adversarially and five of its findings were fixed.
unit + component 2076 -> 2079 (+888 over the round)
api 647 -> 1015
e2e 18 -> 29
What was closed:
- lib/route-access.ts, the page-level authorization layer, went from zero tests
to 48. Every API route was guarded and none of the pages were.
- The five media proxy routes now have a real 2xx beside every 403. The blocker
was the positive control, solved by stubbing r2Client.send() and leaving
lib/r2-media-proxy.ts itself real.
- Every remaining server-side lib module: invitations, email verification, the
upload tokens, the logger, request origin, the whole R2 and Bunny lifecycle,
notifications and admin stats.
- Six video-page hooks, and the chunking arithmetic extracted out of
lib/client/r2-video-upload.ts as a pure module.
- Five end-to-end flows: workspace members, bulk operations, the admin area,
player interaction and failure recovery.
Three things about the harness itself turned out to be wrong:
- Two @/lib/r2 stubs in tests/setup/api.ts had the wrong return shape, so every
route reaching finalizeR2VideoUpload silently took the "not a valid video"
branch and no test noticed.
- The auth matrix asserted only "not 2xx", which two entries satisfied without
their guard existing. It now requires 401 or 403, which makes both
load-bearing, and all 60 routes pass the stricter form.
- Both admin API routes had no positive control anywhere: replacing their guard
with an unconditional refusal left the entire suite green. Found by the
adversarial review, now covered.
Process:
- bun run test:mutation runs StrykerJS over the authorization and validation
modules. Diagnostic, not a gate, weekly in CI rather than on a push.
- playwright.config.ts gains an opt-in webkit project for the player spec.
- AGENTS.md now requires a batch of new tests to be reviewed by somebody who
did not write them.
Only two production files change, both deliberate: lib/auth.ts loses a verbatim
copy of its own permission formulas, and lib/client/r2-video-upload.ts calls the
extracted arithmetic. No behaviour change in either.
yusufipek
yusufipk