Fixes all 109 golangci-lint findings (106 contextcheck, 1 gocritic,
2 gosec) that accumulated after D2 wired dbgen (whose queries take ctx)
under ctx-less db.DB wrappers while CI lint was quota-dead. No nolint
comments added; every finding fixed by genuinely threading context.
- db: all 138 hand-written db.DB methods take ctx first; the dbCtx()
Background shim is deleted; raw Query/QueryRow/Exec/Begin use their
Context variants; the four redundant ctx-less passthroughs removed.
db.Auditor/WriteAudit gain ctx.
- Seams: permissions.Checker (DB iface, HasChannelPerm,
RequireChannelAccess) and the service.Store interface mirror the new
signatures (ws.EventStore and plugin.PluginStore already did).
- Callers: api/admin handlers use r.Context(); ws per-message paths use
the connection ctx via DispatchV2; hub loops and startup wiring use
context.Background(); service methods thread ctx where they have one
and Background where no ctx exists. Public service surface reached by
ctx-holding chains (PermissionService.HasChannelPerm/GetRoleForUser/
RequireChannelAccess, message/dm/block/invite/profile methods) is now
ctx-first.
- Detached (context.WithoutCancel) where cancellation would break an
invariant, found by a 3-lens adversarial review of the diff:
* voice-leave background retries (a dead webhook/connection ctx killed
retry 2 before it ran, leaving ghost capacity-holding voice rows)
* rollbackVoiceJoin's compensating delete (its trigger IS the cancel)
* post-2FA-change DeleteOtherSessions and logout DeleteSession (the
security tail of a committed change must not die with the request)
* all api/ws audit writes (a banned user could suppress their own
login_blocked_banned row by aborting the request mid-bcrypt)
* admin backup VACUUM INTO (an interrupt left a truncated .db that
the backup list presented as restorable)
* post-commit message/edit refetches (a committed message must still
fan out when the sender disconnects)
* hub settings-cache refresh (one dead connection could pin stale
values for the 30s TTL)
- gocritic rangeValCopy fixed (index iteration); gosec G306 excluded in
config with justification (generated source must stay world-readable)
instead of flipping genprotocol output to 0o600.
Verified: gofmt/vet, all four build-tag variants, full suite, deadlock
pass, full -race pass, golangci-lint 0 issues uncapped.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Closes audit finding A-2026-07-16, two defects in the same rule:
- permissions.HasServerPerm (admin bypass OR all-of bit test) replaces
the hand-rolled copies in api.RequirePermission (whose raw test was
any-of for multi-bit masks) and ModerationService.requireBanPermission.
RequirePermission's doc comment now states the scope contract: role
bitfield only, channel overrides deliberately not consulted.
- PermissionService.getOrPopulate and ChannelService.ListVisibleChannels
no longer substitute an empty override map when
GetAllChannelPermissionsForRole errors. That silently dropped every
channel-level deny — and the permission cache then served the degraded
snapshot for permCacheTTL (30s) across ~25 callers. Both fail closed
now; admins skip the fetch entirely (they bypass channel checks).
- PermissionService.HasChannelPerm delegates to Checker.HasChannelPermBatch
and MessageService.GetAccessibleChannelIDs to VisibleChannelIDs — the
missed fifth D9 site, making that closure true rather than aspirational.
- AuthMiddleware rejects a dangling role_id (GetRoleByID returns nil,
nil) with 401 instead of putting a nil role in the request context.
Locked by failing-first tests: override-fetch-error denies (cached and
uncached paths), admin-outage skip, multi-bit all-of, channel allow
override must not grant a server-wide route, 403 locks on both
RequirePermission routes, dangling-role 401.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Phase B + C review pass: critical security and correctness fixes.
Security
- S1: plugin admin endpoints now require admin.RequireAdminAuth in addition
to AdminIPRestrict. Previously a LAN attacker on the allowed CIDR could
list/enable/disable/uninstall plugins without a session.
- S2: rewrite plugin HTTPDo allowlist with proper net/url parsing. Empty
entries are ignored, suffix matches require a dot boundary, and a custom
Dialer rejects loopback / RFC1918 / link-local addresses to close the
DNS-rebinding TOCTOU window. Redirects re-validated.
- S3 + #9: manifest Name pinned to ^[a-z0-9][a-z0-9_-]{0,63}$, Entrypoint
and UI tab assets validated against absolute / "..", NUL byte, backslash
and non-canonical paths. Asset handler hardened with filepath.Rel check
for symlink and prefix-without-separator escapes.
- S5: pluginBridge postMessage handler ignores the pluginId in the message
body and uses an e.source -> contentWindow lookup instead, defeating
spoofed messages from same-origin scripts.
- S8: HTTPDo body capped at 5 MiB via io.LimitReader, redirects bounded
to 5 hops.
Correctness
- Critical seq alignment: PersistEvent now takes the hub-assigned seq as a
required parameter so the events table row seq always matches the wrapped
payload seq. Hub seeds its in-memory atomic counter from MAX(events.seq)
on startup. Drops in the persister queue no longer mis-align row vs
payload seq.
- #1: live plugin.Registry constructed in main.go BEFORE NewRouter and
threaded through; admin handler is no longer wired with nil.
- #3: EventPersister.Stop is now safe to call without a prior Start by
tracking a started flag — previously deadlocked waiting on done.
Wiring
- NewRouter signature gains *plugin.Registry; two test callers updated.
- admin.RequireAdminAuth exported as a thin wrapper over the existing
package-private adminAuthMiddleware.
- sqlc query templates updated for the new PersistEvent + GetMaxEventSeq
contracts (sqlite + postgres).
https://claude.ai/code/session_01UsBsQW2YiA2usk9pnJjAWk
Cover low-coverage handler functions: handleGetPins, handleSetPinned,
handleMetrics, handleDiagnosticsConnectivity, isPrivateIP, AdminIPRestrict,
handleClientUpdate, and handleLiveKitHealth. Adds 30 new test cases across
4 new test files and 2 modified test files.
