A webhook has exactly one target URL, so every hive registering one
against the shared internal/knowledge repository was last-writer-wins
rather than idempotent: all but the most recent silently stopped
receiving deliveries. The swarm controller holds the single registration
and now addresses an event to each hive over the queue instead.
This is a migration, not a deletion. Not registering any more fixes
nothing on a hive that has already run — the hook it created persists on
the forge, so the contention would survive on exactly the deployments
that have it while fresh installs looked fixed. The hive that created a
hook removes it.
It removes only its OWN, matched on the full URL rather than the
/webhook/knowledge suffix. A hook with that suffix and a different base
belongs to another hive, possibly one not yet upgraded, and deleting it
would break that hive's knowledge sync until it caught up. Reaping a
neighbour's registration is the behaviour being removed here; doing it
while fixing it would only invert the direction.
The predecessor did reap by suffix, to clear loopback hooks left by an
older single-hive layout. That was safe when a hive was alone on its
forge and is not safe now. The hive-side registrars also acted as reapers
of hooks under their own path, which is why the swarm hook lives under
/webhook/forge/; removing this registrar removes that reaper too.
Intended, and stated because no reviewer would infer it from the diff.
The receive endpoint goes with it. A live HMAC-verified
/webhook/knowledge that nothing can legitimately reach would tell the
next reader that this is how a hive learns about knowledge changes.
Docs move in the same commit: docs/swarm/README.md said two hooks exist
per swarm-wide repo and neither should be deleted, which is now true for
agent-configs and wrong for internal/knowledge — a half-correct
description being worse than an uncorrected one.
utoipa splits a handler's doc comment on the first blank `///` line:
everything before it becomes the OpenAPI `summary` (shown in Swagger
UI's collapsed endpoint-list row), everything after becomes the
`description` (only shown once that row is expanded). With no blank
line, the whole doc comment becomes the summary and the description is
empty — which is what every handler in hive-c0re/src/dashboard/ was
doing, so the all-endpoints list showed full multi-sentence prose next
to every route instead of a short one-liner.
For every `#[utoipa::path(...)]`-annotated handler across the 19 files
in that module:
- Inserted a blank `///` line after the first short sentence/clause so
utoipa's split produces a real summary + description, where the doc
comment had more to say. Left already-short single-clause docs alone
(nothing to split).
- Where a query struct derives `IntoParams`, moved param prose that
duplicated a field's own doc comment out of the handler doc (the
field already documents itself in the generated spec), or added a
field doc where the handler explained a param that had none.
No behavior changes — doc comments and `params()` description text
only. Verified `cargo build -p hive-c0re` (clean) and `nix fmt` (zero
changes) after.
Closes#2969
Two issues flagged by argus in PR #2388 review:
1. Empty-key fallback: when load_or_generate() failed, webhook_secret was
String::new(). An attacker knowing this could forge deliveries with a
valid HMAC of the empty key. Fix: change to Option<String>; on None,
skip hook registration entirely and return 503 from /webhook/* handlers
(rather than 401 with a misleadingly-verifiable empty-key HMAC).
2. Stale hook cleanup: on upgrade from old code, old loopback hooks
(http://127.0.0.1:.../webhook/knowledge, .../webhook/config-pr) were
left alongside the new domain-URL hook. Fix: during ensure_webhook /
ensure_config_pr_webhook, after listing hooks, delete any that end with
our path suffix but point at a different base URL.
clippy + nix fmt clean.
Both webhook registrations (knowledge push + config-PR pull_request) now
use the public hive domain instead of loopback:
https://<HYPERHIVE_HIVE_DOMAIN>/webhook/{knowledge,config-pr}
This routes deliveries through the gateway, bypassing the Forgejo SSRF
guard that blocked loopback delivery and silently broke the config-PR
merge flow since launch.
Changes:
- webhook_secret: new module — auto-generate + persist a 32-byte HMAC
secret to STATE_ROOT/webhook-secret on first startup; verify
X-Hub-Signature-256 on every incoming webhook POST (HMAC-SHA256).
- forge/mod.rs: ensure_config_pr_webhook now takes hive_domain +
webhook_secret; sets secret in Forgejo hook config.
- workers/knowledge.rs: ensure_webhook same update.
- dashboard/webhook.rs: both handlers read raw Bytes first, verify HMAC,
then parse JSON. Returns 401 on signature mismatch.
- dashboard/mod.rs: AppState carries webhook_secret; serve() takes it.
- main.rs: load/generate secret at startup; pass to registration tasks
+ dashboard; add 5-minute config-PR polling fallback task.
- forge/config_pr_poll.rs: new — scan agent-configs/* for open PRs with
no pending MergeConfigPr approval; queue them. Idempotent.
- stores/approvals.rs: has_pending_merge_config_pr() for poll dedup.
- nix/modules/hive-gateway.nix: remove dashboardAuth from /webhook/
location (HMAC replaces basic auth for webhook endpoints; Forgejo
cannot send HTTP Basic credentials with webhook deliveries).
- Backtick-quote `pull_request` in doc comments (4x doc_markdown)
- Add #[allow(clippy::too_many_lines)] to server::dispatch (101/100;
+1 line from submit_kind fetched_sha param in 5dd0a36f)
