Cold-review LOW (defense-in-depth): the serve path derived the Content-Type
from the stored file via Winista but only defaulted application/octet-stream on
a NULL sniff. A cache file whose bytes are HTML — a legacy entry poisoned before
the upload-sniff landed, or a hypothetical image/script polyglot — could still be
sniffed as text/html and served renderable (nosniff does not stop an explicitly
declared text/html). Clamp the sniffed type to ImageContentTypes.IsAccepted,
serving application/octet-stream for anything else, so the serve path can never
emit a renderable non-image type regardless of what bytes are on disk.
Refs #283
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
S4 stored-XSS + S9 upload-size DoS from the #197 cold API review.
The artwork path trusted client-supplied content types at both ends: upload
validated only the declared multipart Content-Type (never decoded the bytes),
and serving reflected a client `?contentType=` straight into the response
Content-Type on unauthenticated GET sinks (/iptv/logos, /artwork/watermarks).
Chain: upload <script> bytes as image/png -> GET ...?contentType=text/html
serves them as HTML in-origin. nosniff (#279) does not help because the server
explicitly declares text/html.
- Upload: derive the content type from the bytes via SkiaSharp SKCodec
(header-only, no decode -> no decompression-bomb path); reject non-images 422.
New ErsatzTV.Core/Images/ImageContentTypes as the single allow-list source.
Dropped the untrusted declared Content-Type from the UploadArtwork command.
- Serve: removed the ?contentType= reflection structurally -- dropped ContentType
from GetCachedImagePath and the [FromQuery] binding on GetImage/GetWatermark;
the handler always sniffs the file, defaulting application/octet-stream.
ArtworkContentTypeModel.UrlWithContentType is now the bare path; SPA previews
no longer append the query.
- Defense-in-depth: channel-logo / watermark {path, contentType} DTOs run through
ArtworkContentTypeModel.Sanitized(), blanking non-allow-listed types on write.
- S9: Kestrel MaxRequestBodySize from ETV_MAXIMUM_UPLOAD_MB rejects oversized
bodies during read (controller file.Length check kept as friendly-error backstop).
Both serve sinks are IgnoreApi, so no OpenAPI change. Tests: byte-sniff accept/
reject, Sanitized() allow-list, Location no longer carries ?contentType=.
Docs: api-conventions §4a + decisions.md 2026-07-12.
Refs #283#197#66
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Follow-up to PR #279 — the adversarial diff review flagged that adding
baseline security headers to every response is an operational-behavior
decision worth a decisions.md entry. Records the SecurityHeadersMiddleware
placement + the deliberate CSP/HSTS deferral to the #197 posture design,
plus the constant-time key compare and playout paging clamps.
Refs #197.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add the id-based reconcile tests to ReplaceProgramScheduleItemsReconcileTests:
reorder moves state with the logical item (the non-vacuous core — proven to fail
under forced-positional), insert-in-middle, delete-unreferenced, unknown-id→422,
duplicate-id→422, and stale-version+unknown-id→412 (412 precedes 422, §7c). The
GET→map→PUT lossless round-trip now round-trips r.Id so it exercises id-mode.
Threads the new int? Id through all command/wire construction sites in tests.
Docs: api-conventions §7c (stable child identity + the deliberate #2-#5 positional
asymmetry) and a decisions.md entry.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The ChicoryTV React SPA (web/, served at /app) now has full parity for every
route the Blazor UI served, so the legacy Blazor Server / MudBlazor UI is
deleted. This is the milestone-capping removal of #91 phase (b).
Deleted: ErsatzTV/Pages/**, Shared/**, ViewModels/** (39 edit VMs),
Validators/** (10 edit-VM validators), App.razor, _Imports.razor,
Locals/{Shared,Pages}/** (Blazor loc resx; Locals/Resources.* kept),
wwwroot/css + wwwroot/lib, libman.json, and the orphaned MultiSelectBaseTests.
Startup.cs (surgical, not wholesale): removed AddRazorPages/AuthorizeFolder,
AddServerSideBlazor, AddMudServices, AddSortable, AddCourier, the HtmlSanitizer
registration, the Blazor-attached OIDC UseAuthentication/UseAuthorization
middleware (per the #206 auth-posture sign-off), MapBlazorHub, and
MapFallbackToPage("/_Host"). Renamed the branch blazor->legacy; it still
co-hosts MapControllers, /docs (Scalar), dev MapOpenApi and the redirect
middleware. Replaced the _Host fallback with a catch-all (MapFallback ->
302 /app) that excludes /api|/artwork|/docs|/openapi (genuine 404) per #204.
Kept all OIDC/JWT/API-key service wiring (inert unless configured; real auth
is #197), ConditionalIptvAuthorizeFilter, ApiKeyAuthorizationFilter.
Pruned 9 now-unused packages (all verified zero remaining consumers) from
Directory.Packages.props + ErsatzTV.csproj: MudBlazor, Heron.MudCalendar,
Blazored.FluentValidation, BlazorSortable, MediatR.Courier.DependencyInjection,
Markdig, HtmlSanitizer, Chronic.Core, NaturalSort.Extension. Also removed the
now-dead #25 razor-Sonar NoWarn.
LegacyUiRedirects: added the 14 /media/sources/* -> /app/libraries/* redirects
(SPA screens landed in #202) and lifted the #204-era /media/sources prefix ban.
Tests: Release build clean; full solution suite green. Updated Startup
source-text tests + added regression coverage that Blazor wiring is gone, the
catch-all is wired, and all 14 media-sources routes redirect.
Docs: blazor-route-parity.md (phase b COMPLETE), decisions.md (removal entry),
CLAUDE.md, contributing.md, README.md all updated in this PR.
Rollback: tag blazor-final is cut on pre-merge main as the first merge action.
Part of #91.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Last SPA pre-work before deleting Blazor Libraries.razor (#91 phase b):
wire the shipped scanLibrary(id, deep) + scanCollections(family, id, deep)
clients (F9 API, #235) into LibrariesScreen so the SPA reaches parity with
Libraries.razor's four scan actions.
- Deep Scan Library button on each remote (Plex/Jellyfin/Emby) library row,
threading `deep` through the existing optimistic-pending/poll hook (quick +
deep share the per-library lock).
- External Collections section (quick + deep per remote source). Rows derive
client-side from getMediaSources(): the media-sources API handler already
filters each source's `libraries` to sync-enabled entries, so a remote
source with a non-empty libraries list is exactly GetExternalCollections's
Libraries.Any(ShouldSyncItems) filter — no new endpoint.
- useCollectionsScan hook: collections scans have no scan-status poll surface
(the endpoint is library-keyed; Blazor observed collections locks via
in-process IEntityLocker events), so pending is optimistic + timeout-bounded
(409 benign, 404/network surfaces the error). Follow-up #271 for a proper
collections status surface.
Pure SPA change (no backend/OpenAPI). Docs: blazor-route-parity.md §5 (SPA
affordance DONE), decisions.md (derive-vs-endpoint + optimistic-timeout).
Refs #91
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Backend mutation-hardening cluster from the 2026-07-11 mutation-safety audit
sweep (adversarial-reviewer #22/#23), the parallel-safe backend-isolated slice.
audit#22 F4 — standardize post-commit enqueues on CancellationToken.None:
20 command handlers under MediaCollections/, ProgramSchedules/, Playouts/,
Channels/ threaded the request cancellationToken into work that runs AFTER
SaveChangesAsync commits (WriteAsync rebuild/refresh enqueues, mediator.Publish,
reindex, cache Refresh, and post-commit lookups that gate an enqueue). A late
client-disconnect then turns an already-durable commit into a thrown request AND
drops the side effect. Generalizes the #251 deco-handler fix. Excludes
BuildPlayoutHandler (worker/background token, not a client-disconnect token),
the config/FFmpeg multi-upsert handlers (partial-commit case, separate
follow-up), and response-projection reloads (correctly keep the request token).
audit#22 F2 — DeleteChannelHandler/DeletePlayoutHandler now delete the channel
guide {number}.xml through IFileSystem.File.Delete (observable under
MockFileSystem) and BEFORE the commit (a post-commit delete orphans the xml on a
crash; the xml is regenerable on demand, so pre-commit delete is the safe order).
audit#23 F4 — ReplacePlayoutAlternateScheduleItemsHandler rejects an empty item
list in the handler (not only the controller pre-guard) so a direct caller can't
trip the Max()-on-empty crash.
Docs: api-conventions.md §7a (post-commit token convention + boundaries),
decisions.md entry (rationale, sweep scope, #253 PR2-4 coordination note).
Tests: guide-cache-delete-through-FS for both delete handlers, empty-list guard.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Resolve the two SHOULD-FIX gate findings from the #91 cold review by making the
removal plan address them explicitly instead of clearing the gate by omission.
Pages (verified in code, not assumed) — OIDC's AuthorizeFolder("/") gates only the
Blazor _Host Razor Page; /app (SPA) and /api/* were already unauthenticated since
phase (a); /iptv JWT + API-key filters are independent of Blazor and survive
removal. Sign-off: no capability lost, no NEW exposure beyond phase (a); real
SPA/API auth deferred to #197. Recorded in docs/decisions.md.
(cut at removal time on the pre-deletion main commit — not a v* tag, no release
build) + the restore path (checkout+build+pin test container, or revert the merge).
Recorded in docs/decisions.md.
Both fold into a new "Section 5 — Removal execution runbook" in blazor-route-parity.md
so the (gated) removal PR has an ordered checklist. Docs-only; no code change.
refs #205#206#91
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds the shared optimistic-concurrency contract so a stale second tab can no longer
silently overwrite a fresher edit. PR1 lands the infra + the Block reference aggregate;
PRs 2–4 fan the same recipe across the other 8 roots (design: #253#issuecomment-8472).
Contract
- `IVersionedAggregate` (`int Version`) on all 9 replace-all roots (ProgramSchedule,
Block, Template, DecoTemplate, Playlist, Collection, Playout, MultiCollection,
RerunCollection), EF-mapped `.IsConcurrencyToken()`; one dual-provider migration
`AddAggregateVersions` (nullable:false, default 0).
- Strong `ETag` of `Version` on the aggregate GET; `If-Match` on the PUT; mismatch →
412 (distinct from the §3a 409 build-lock guard). Successful PUT returns the new ETag.
- `PreconditionFailedError : BaseError` → 412 in `ApiResults.ToErrorResult`;
`ConcurrencyHeaders.ParseIfMatch/SetETag`; malformed If-Match → 400; `*`/absent =
Phase-1 force-write.
Block reference wiring
- Handler: standalone `Either` via `CheckVersion` AFTER validation (never through
`Apply`, which Join()-flattens the subtype to 422), unconditional `Version++`,
`SaveChangesWithConcurrencyGuard` backstop (DbUpdateConcurrencyException → 412).
- `BlockViewModel.Version` (header-only, not echoed in the body); controller sets the
ETag on GET items and on the successful PUT.
- SPA: `client.requestWithMeta` seam; `blocks.getBlockItemsWithMeta` + `replaceBlock`
If-Match/ETag round-trip; `BlockEditor` holds the ETag, sends If-Match, and on 412
opens a blocking "changed elsewhere — reload" dialog.
Tests
- Handler contract tests: stale-If-Match → 412 (no mutation), matching/absent → success
+ bump, no-op save still bumps, and a two-context racing save → 412; proven
non-vacuous (drop `.IsConcurrencyToken()` → the race test fails).
- Controller tests: malformed If-Match → 400, If-Match threaded to the command, ETag on
GET/PUT, 412 passthrough. SPA: requestWithMeta ETag, replaceBlock If-Match, 412 dialog.
Docs: api-conventions §7a, spa-conventions §4a, domain-model glossary, decisions log.
Refs #253
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Extend LegacyUiRedirects from an exact-match dictionary to a two-tier matcher:
Tier 1 keeps the exact Map (now 52 entries incl. the ?kind= browse roots),
Tier 2 adds 36 ordered segment-template PatternRules for id-carrying routes.
{id} is a strict positive integer (non-int/0/neg/overflow falls through), which
also makes the rule set collision-free by construction. New AppendQueryString
helper merges the incoming query into ?kind= targets with '&' (kills the
double-'?' bug); one-line Startup change keeps the redirect GET/HEAD-only 302
before UseRouting.
Completes phase-(a) Step 1 for every PARITY-OK route (#91 phase b); the
catch-all fallback replacing MapFallbackToPage stays with the removal PR.
/media/sources/* (#202) and /system/health remain deliberately un-redirected.
fixes#204
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Move the Channels domain verbatim out of web/src/App.tsx into
web/src/screens/ChannelsScreen.tsx (zero-prop, self-sufficient, mirroring the
SchedulesScreen extraction). Pure structural move: no API, route, CSS, or
visual change. App.tsx retains only the import + the <ChannelsScreen /> dispatch.
- 14 symbols moved (ChannelViewFilter → ChannelTableRow); the Dashboard-owned
progressFromNowPlaying is inlined into the moved progressFromChannelState so
the screen has no import back into App.tsx (behavior-identical).
- 12 Channels behavior tests moved to a colocated ChannelsScreen.test.tsx with
its own scoped fetch mock (renders <ChannelsScreen /> directly, no
mockDashboardApi); App.test.tsx keeps one nav-smoke test for the route.
- Pruned 12 now-dead App.tsx imports; shared symbols (ChannelState,
messageFromError, ApiError, useChannelsQuery) verified still used and kept.
- Docs: spa-conventions §6 (extracted-screen own-fetch-mock convention),
decisions.md (single-file rationale; no web/src/channels/ sibling dir, unlike
Schedules; inlined helper; #238 deferral).
Verified: web vitest 587 passed, eslint clean, tsc/vite build clean,
check:api no drift. #212 empty-lineup bare-create success+failure coverage
preserved. #238 TopBar dead-button left as-is (its owned bug; shell redesign
is epic phase 4 / #247).
refs #244#243
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The six plain-bool lock flags (Plex, Trakt, Emby/Jellyfin/Plex collections,
troubleshooting playback) used a non-atomic check-then-set, so two concurrent
Lock* callers could both win. Convert them to int flags mutated only via
Interlocked.CompareExchange, so the caller that wins the 0->1 transition is the
sole owner and the only one that fires the change event. The three
ConcurrentDictionary-backed kinds (Library/Playout/RemoteMediaSource) were
already atomic; drop their redundant ContainsKey pre-checks.
Define the ownership contract (tokenless single-owner discipline, no interface
change) on IEntityLocker and in docs/decisions.md: a true from Lock* confers
ownership of exactly one release; Unlock* on an unlocked slot returns false,
fires no event, and logs a warning (the double-release / non-owner tripwire).
Adds EntityLockerTests (real locker, parallel-caller races) proving exactly one
winner per kind, one-releaser-per-slot, and event-fires-once-per-transition.
Ref #231. Scan-lifecycle call-site fixes that consume this contract land in the
same PR (#232); the BuildPlayout/subtitle finally-gating is #234.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Handoff file reduced to static kickoff prompt + append-only lessons lore;
queue/arc/session log live in pinned tracker ersatztv#237 with in-progress
claim labels and end-of-session triage. Decision recorded in decisions.md;
docs index updated.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Channel editor cluster moves from GAPS to PARITY-OK in the verdict table now
that external logo URL, bare-create, and enumerated pickers have landed.
Records the bare-create-on-list-screen and external-logo-wins decisions in
decisions.md.
Blazor parity for the remaining #213 conveniences:
- GET /api/logs gains sortField (timestamp|level) and sortDirection
(asc|desc) query params, allow-listed and normalized (unrecognized
values fall back to the pre-existing timestamp-desc default) rather
than rejected with a 422. LogsScreen.tsx renders clickable, sortable
column headers with a chevron direction indicator.
- LogsScreen.tsx now persists the chosen page size to localStorage
(ctv-logs-page-size) and restores it on mount, following the
existing designSystem.ts localStorage-preference pattern. This is a
client-local UI preference, not the Blazor ConfigElement-backed
server setting — see docs/decisions.md.
- TrashScreen.tsx adds a per-kind "See all N ..." affordance that
pages past the 100/kind /api/search cap using the already-paginated
GET /api/library/browse (mediaType + pageNum), appending results
client-side. No new API surface was needed since that endpoint
already supports the paging the trash screen needed.
docs/decisions.md, docs/blazor-route-parity.md, docs/spa-conventions.md
and docs/api-conventions.md updated in this same commit. OpenAPI spec
regenerated (v1.d.ts unchanged: query params aren't part of the
generated components/schemas surface).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Adversarial review finding 1 on PR #225: decisions.md and api-conventions §3a
read as if the race were eliminated; the guard only narrows it (a queued build
can acquire the lock after the check passes). Also records why true lock
acquisition per mutation was not taken.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Blazor disabled per-playout Reset/Erase/Delete/Edit while a BuildPlayout was
in flight (EntityLocker.IsPlayoutLocked); the REST API had no equivalent, so a
client could race an in-flight build with a destructive ExecuteDelete and leave
a half-built playout. After Blazor removal this safety invariant would vanish
entirely (adversarial-reviewer#18 removal gate).
Server:
- Add public ApiResults.ConflictProblem(title, detail) (409, mirrors NotFoundProblem).
- Inject IEntityLocker into PlayoutController; guard every id-keyed mutation
(PUT {id}, PUT .../deco, PUT .../alternate-schedules, PUT .../templates,
POST .../erase-items, POST .../erase-items-and-history, DELETE {id}) → 409
when IsPlayoutLocked(id); add [ProducesResponseType(...409)] to each.
- Guard ChannelController.ResetPlayout the same way after resolving the id.
- reset-all stays 202 (ResetAllPlayoutsHandler already skips locked playouts).
- Stamp IsLocked onto PlayoutListItemResponseModel from IsPlayoutLocked.
SPA:
- Disable Reset/Erase/Erase-and-history/Delete for a locked row + show a
"Building…" Badge; on a 409 surface the error and refresh the list.
Tests: controller-level 409 guard tests (delete/erase/PUT/deco/channel-reset)
+ IsLocked projection test; new OpenAPI contract + metadata 409 rows.
Docs: api-conventions §3a, blazor-route-parity playouts verdict, decisions.md.
Regenerated v1.json + web types.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- BlocksScreen: add copy-to-group dialog (mirrors TemplatesScreen), wiring the
already-existing copyBlock() API client
- WatermarksScreen: add copy via /add?from={id} prefill (mirrors
FFmpegProfilesScreen), no new endpoint needed
- TrashScreen: add Select all / Clear selection to the action bar; bump
PAGE_SIZE to the search API's max (100) — true paging needs a page param
the API doesn't have yet
- TraktListsScreen: fix stale callout text — "View matched items" now opens
the SPA's own search screen, not the Classic UI
docs/decisions.md: record the YAML-validator paste-textarea deviation, the
channel-number prompt-renumber deviation, extend the "table not calendar"
convention to the deco-templates editor, and document the trash 100-item cap.
- api-conventions.md §5a: runtime Newtonsoft casing vs generated spec, the
schema transformer that mirrors it, and the contract test guarding it.
- decisions.md: append the "wire format is source of truth; spec follows via the
real contract resolver" decision.
- spa-conventions.md §4: trust the generated key casing; note the removed
troubleshooting escape hatch and runtime-cased test mocks.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- decisions.md: Download Media Sample is gated while a session is active in
the SPA (Blazor only gated Download Results) — intentional deviation.
- blazor-route-parity.md: playback row notes entry points are the channels
table + movie detail page only for now (other media kinds need a hand-built
?mediaItem= URL).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- blazor-route-parity.md: move /system/troubleshooting/playback from Section 3
(BLAZOR-ONLY) to Section 2 (SPA-ready); Section 3 now has no blocking rows.
- decisions.md: poll-based completion feedback (no SPA push channel) and the
datetime-local vs Chronic deviation.
- spa-conventions.md: new HlsPlayer reusable-component + test-mocking note.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
timothy
