The 2026-08-21 prod 500 on POST /api/v1/blogacl was caused by the
PostIt client sending { circleId } only — the server deserialised
into CircleAuthorizationToBlogPost with BlogPostId = default(long) = 0,
and EF Core refused the INSERT with InvalidOperationException.
The PostIt-side fix lives in b82b6722 (enrich the payload with
blogPostId). This commit is the server-side guard: validate
BlogPostId > 0 in the controller and return 400 BadRequest instead
of letting the request reach SaveChangesAsync. The same shape that
crashed on 2026-08-21 now fails fast at the validation layer.
Verified by BlogAclApiTests.PostCircleAuthorization_dosent_return_500:
sentinel that asserts 'never 500' on a payload with BlogPostId = -1.
Previously red (500 from EF Core), now green (400 from the new guard).
The hard rule on POST /api/v1/blogacl is: a 500 is never acceptable,
regardless of the payload shape. The prod 500 logged on 2026-08-21 on
mercure was caused by the PostIt client sending { circleId } only, which
the server deserialised into CircleAuthorizationToBlogPost with
BlogPostId = default(long) = 0; EF Core refused the INSERT with
InvalidOperationException: The value of
'CircleAuthorizationToBlogPost.BlogPostId' is unknown. The PostIt fix
lives in b82b6722 (enrich the payload with blogPostId). The server-side
guard lives in this commit:
- BlogAclApiController.CheckOwner is now async and uses FirstOrDefaultAsync
instead of First, so it does not deadlock the request thread and
returns false on a missing circle (which the controller already maps
to ChallengeResult).
- BlogsWebServerFixture now seeds Alice, her Circle and her BlogPost
in ConfigurePipelineAsync, once at host startup, against the shared
SqliteConnection (Cache=Shared). EnsureCreated is idempotent and
runs against the connection that every DbContext resolves through,
so the test theory can POST payloads with real FK ids against a
schema that actually has the Circle / BlogSpot tables.
- BlogAclApiTests:
- PostCircleAuthorization_returns_201_when_payload_mirrors_PostIt_shape
is the regression sentinel for the prod fix.
- PostCircleAuthorization_never_returns_500 is a [Theory] over
several payload shapes; any future commit that reintroduces a
500 path turns it red. CleanupAcl at the start of each insert-
bearing test isolates against xUnit's no-guarantee-of-order
execution: a successful POST in test N would otherwise conflict
with test N+1 against the same (CircleId, BlogPostId) pair.
Closes the data-leak holes that survived the move of these controllers
from Yavsc.Api to Yavsc.Blogs. Circles are personal — a circle and its
membership should never be visible, modifiable, or deletable by anyone
other than its owner.
BlogAclApiController:
- GetBlogACL() was returning the full table; now filters by
Allowed.OwnerId == caller's uid, with an Include(a => a.Allowed)
so EF Core can push the filter into SQL instead of materialising
the whole table.
- Other endpoints (GetById, Put, Post, Delete) already enforced
ownership; left as is.
CircleApiController:
- GetCircle() (no id) now filters by OwnerId.
- GetCircle(id) now requires c.Id == id && c.OwnerId == uid;
returns 404 (not 403) on miss to avoid leaking the existence of
someone else's circle.
- PutCircle verifies the existing record is owned by the caller,
then forces circle.OwnerId = uid on the body (the client's value
is ignored). Returns ChallengeResult when the caller doesn't own
the record.
- PostCircle forces circle.OwnerId = uid (was trusting the body).
- DeleteCircle now filters by OwnerId; 404 on miss.
All checks use the same source of truth (User.FindFirstValue(
ClaimTypes.NameIdentifier)) that the existing BlogAclApiController
authz code already relies on.
These two controllers belong to the Blogs subsystem (their routes
/api/blogacl and /api/circle are blog-domain concerns, not the
generic Api surface). Moving them next to BlogApiController keeps
related code together and prepares the PostIt client to consume
them through the same BlogsApiUrl base address as the existing
BlogApiClient.
Mechanical changes only:
- Namespace Yavsc.Controllers -> Yavsc.Blogs.Controllers
- Drop unused 'using Yavsc.Helpers;' (no symbol in the new
compilation unit depends on it; the build confirms it was
dead since the controllers were first written)
- Fix typo in CircleApiController route: 'api/cirle' -> 'api/circle'
(any client trying to call the documented route was hitting 404)
No functional changes to authorization or query shape. The known
security gaps in these controllers (GetBlogACL and GetCircle
return unfiltered collections, DeleteCircle has no ownership
check) are deliberately left untouched in this commit and will
be addressed in a follow-up.
2026-08-17 23:34:48 +01:00
Renamed from src/Yavsc.Api/Controllers/Relationship/BlogAclApiController.cs (Browse further)
