20 Commits

Author	SHA1	Message	Date
Ilia Denisov	4f6c22d669	feat(gateway): the Robokassa /pay/ edge routes ... Add the public /pay/robokassa/result callback proxy (rate-limited; forwards the provider's form parameters to the backend intake, the single writer, and echoes its "OK<InvId>" back to Robokassa) and the /pay/robokassa/{success,fail} browser-return redirects into the app. Route /pay/* to the gateway in the contour Caddyfile so the callback reaches the edge, not the landing catch-all. The backend intake now returns the echo body as JSON for the gateway to relay.	2026-07-09 17:33:22 +02:00
Ilia Denisov	92633f935e	feat(payments): trusted platform signal on the session ... Record the execution platform (kind vk|telegram|direct + device subtype ios|android|web) on each session, captured at creation and carried gateway->backend as a trusted X-Platform header, so the upcoming store-compliance gate has an unforgeable execution context. - backend.sessions gains nullable platform_kind/platform_subtype columns (migration 00011, CHECK-constrained, jet regenerated); session.Platform captures them at mint, resolve returns them, middleware exposes platform(c). kind is derived from the establish endpoint, never a client field; the account-merge session mint inherits the caller's platform. - gateway derives the platform (VK subtype from the signed vk_platform via vkauth, Telegram/direct best-effort from the client) and injects X-Platform on every authenticated backend call through the request context. - ui submits a best-effort device subtype on the telegram/guest/email login requests (new FBS subtype field); VK is server-derived from the signed params. - an unattributed session is untrusted (view-only); VK/TG self-heal on the next cold-start re-mint, direct/email on re-login. Signal plumbing only, no user-visible change; X-Platform is inert until the gate consumes it.	2026-07-08 03:31:51 +02:00
Ilia Denisov	00bb66ba0f	fix(metrics): second-scale buckets for edge_request_duration ... The edge request-latency histogram records seconds but used the OTel SDK's default millisecond-calibrated bucket boundaries (first boundary 5), so every sub-5s request fell into one bucket and histogram_quantile(0.99) interpolated to ~4.95s for every message type — regardless of the real (millisecond) latency. That tripped the >1s "Gateway request latency p99 high" alert on essentially every request, flapping fire/resolve on each app open (seen on the test and prod contours). Set explicit second-scale bucket boundaries (0.005 … 10s) straddling the 1s SLO so the p99 reflects real latency and the alert fires only on genuine slowness. Regression test asserts the histogram carries a sub-second boundary.	2026-07-05 22:49:04 +02:00
Ilia Denisov	2feb638329	feat(gateway): unsupported-engine telemetry beacon + Grafana counter ... The index.html boot guard now fires a fire-and-forget beacon (POST /telemetry/unsupported) when it turns a client away on the unsupported-engine screen, so the owner can see — on the Users dashboard beside "app opens" — how many real clients hit it and on which engines. - Client: navigator.sendBeacon (fetch fallback) with a localStorage dedup keyed by app version + reason + Chromium, so a user reopening the app is one report, not ten. - Gateway: a new unauthenticated POST /telemetry/unsupported handler (the client never booted, so it carries no session), per-IP public-limited and body-capped, mirroring the export-download route. It folds the beacon into the OTel counter unsupported_engine_total {reason = no_bigint/no_proxy/boot_error/other, chromium}, with reason allow-listed and the Chromium major reduced to a bounded range (normalizeUnsupported) so a spoofed beacon cannot inflate the metric cardinality; the full user agent is logged, not labelled. - Caddy: /telemetry/* added to the @gateway matcher (else it falls to the landing catch-all). - Grafana: two panels on the Scrabble — Users dashboard (by reason, by Chromium major). - Docs: ARCHITECTURE.md §11. Tests: recordUnsupportedEngine (metric split), normalizeUnsupported (cardinality bounding), and the handler route end to end (204 / 405 / counter). go build+vet+test and gofmt clean; ui check/build/e2e green; the client beacon + dedup verified against a forced hard-gate (BigInt removed) — one POST, deduped on reopen, correct reason/chromium/version labels.	2026-07-04 23:03:47 +02:00
developer	d5fbaa3034	feat(export): server-rendered artifacts behind one signed download URL (#160) ... The finished-game export (GCG + a new PNG of the final position) is one signed, short-lived relative URL (game.export_url; HMAC-SHA256, 10-min TTL, BACKEND_EXPORT_SIGN_KEY) resolved against the client's own origin and delivered by the best affordance each platform has (five on-device review rounds): - TG Android/desktop: native showPopup chooser -> native downloadFile dialog (bridge-only chain, activation-safe). - TG iOS: app-modal chooser -> OS share sheet with the fetched file (a popup callback cannot supply the activation the sheet needs). - VK iOS: VKWebAppDownloadFile for both formats. - VK Android: the PNG opens in VK's native image viewer, the GCG copies to the clipboard (the VK Android downloader hangs on any download, Content-Length/Range notwithstanding). - VK desktop iframe / desktop browsers: plain anchor downloads. - Mobile browsers: the OS share sheet (fetch-then-share). - Legacy TG (< Bot API 8.0): app modal + GCG clipboard, no image option. The PNG is rasterized on demand by the new internal `renderer` sidecar (node:22-slim + skia-canvas + baked Liberation/Noto Color Emoji fonts) executing the SAME ui/src/lib/gameimage.ts the ui project unit-tests; the backend rebuilds the render payload from the journal + engine.AlphabetTable, and the device date locale, IANA time zone and localized non-play labels ride the signed URL. Nothing is stored — the artifact re-derives from the immutable journal on each GET. The gateway forwards /dl/* (caddy @gateway matcher extended) behind the per-IP public rate limiter and serves bytes via http.ServeContent. Deploy: renderer service in compose + prod overlay + rolling order + prod push list; TEST_/PROD_EXPORT_SIGN_KEY secrets; the sidecar smoke runs in the ui CI job. Docs: ARCHITECTURE, FUNCTIONAL(+_ru), UI_DESIGN, TESTING, deploy/README, renderer/README.	2026-07-02 21:58:07 +00:00
Ilia Denisov	2e8fa83814	feat(telemetry): local move-preview adoption metrics (Phase 4) ... Measure uptake of the client-side local move-preview accelerator (§5) so adoption can be watched before defaulting it on: app cold starts, dictionary loads by result (fetched / cache_hit / miss) and move previews by path (local / network — the backend load shed). A small best-effort client beacon (POST /metrics/local-eval, session-gated) batches counter deltas and posts them on a 60s timer and when the app is backgrounded — never on the gameplay path: the in-app counters are plain in-memory increments, only the periodic flush touches the network and it is fire-and-forget. The gateway folds each batch into three OTel counters (local_eval_cold_start_total, local_eval_dict_load_total, local_eval_preview_total), clamped against a spoofed inflation. - gateway: counters + recordLocalEval + session-gated /metrics/local-eval handler - ui: localeval-metrics accumulator/beacon; hooks in the dict loader, in Game.recompute and in bootstrap (skipped under the mock harness) - caddy: route /metrics/* to the gateway - docs: ARCHITECTURE §11; Grafana "Scrabble — Users" dashboard panels	2026-07-01 23:31:49 +02:00
Ilia Denisov	5689f7f6a3	feat: on-device move preview (local eval) with network fallback ... Score and validate a tentative move on-device instead of a per-arrangement network round trip. The dawg reader and the validate/score/direction slice of the scrabble-solver engine are ported to TypeScript (ui/src/lib/dict), pinned byte-for-byte to the Go engine by a `conformance` CI job (full-dictionary reader parity plus a battery of plays across every variant and both cross-word rules, including the inferred orientation). The server stays authoritative — submit_play re-validates — so the local result is an advisory accelerator only. - backend: Registry.DictBytes + an authed GET /api/v1/user/dict/{variant}/{version} (immutable) streaming the pinned per-game dawg; caddy routes /dict to the gateway. - gateway: a session-gated /dict edge route proxying it; fetchDict on the transport. - client: the dictionary loads on game open (low priority so it never starves the game on a slow link; aborted at a 5s cap or when leaving the game), is cached in IndexedDB (best-effort, self-healing on a rejected blob) and reused across sessions; a warm-up overlay covers a cold load, then the network preview is the fallback; a bad-connection breaker stops warming after repeated misses; the move preview cancels its in-flight request when the tiles change. - parity generators backend/cmd/{dictgen,validategen} + gated Vitest suites, run in CI against the release dictionaries. A hidden debug readout lists the cached dictionaries + breaker state, and its reset clears the cache. - docs: ARCHITECTURE §5, TESTING, UI_DESIGN, FUNCTIONAL (+ru).	2026-07-01 22:58:40 +02:00
Ilia Denisov	65c194264c	feat(vk): embed the game as a VK Mini App ... Mirror the Telegram Mini App wrapper for VK: the SPA loads at a new /vk/ entry, authenticates from VK's signed launch parameters, and provisions a 'vk' platform identity — the minimum to run the game in VK test mode. - Gateway verifies the launch signature in-process (internal/vkauth: HMAC-SHA256 over the sorted vk_* params under GATEWAY_VK_APP_SECRET, base64url) — a pure offline check, no side-service. New auth.vk op (gated on the secret), backendclient.VKAuth, /vk/ SPA mount. - Backend: KindVK + ProvisionVK/vkSeed, /sessions/vk handler, identity kind widened to include 'vk' (migration 00005, expand-contract). - UI: src/lib/vk.ts (VK Bridge, lazy-imported), bootVK + the /vk/ boot dispatch, encodeVKLogin + authVK across transport/client/mock. VK omits the name from the signed params, so the client reads it via VKWebAppGetUserInfo as an unsigned display seed. - Deploy: /vk in the edge Caddyfile, GATEWAY_VK_APP_SECRET wired through compose + .env.example + CI (TEST_) + prod-deploy (PROD_). - Admin console: surface the VK user id (link to the VK profile) next to the Telegram id on the user card. - Docs: ARCHITECTURE §12/§13, FUNCTIONAL (+ _ru), gateway README; VK integration reference under .claude/. Signature algorithm verified against dev.vk.com plus independent Node/Python references and a %2C edge-case vector.	2026-06-27 11:37:31 +02:00
Ilia Denisov	041106d623	feat(gateway): temporary IP ban (fail2ban) fed by rejections + honeypot/honeytoken ... Add a prod-only, in-memory IP ban enforced at the edge, fed by three signals: sustained rate-limiter rejections (the IP-keyed public/email/admin classes — the user class stays the backend soft-flag's concern), a honeypot decoy-path hit (the contour caddy tags decoys with X-Scrabble-Honeypot and routes them to the gateway), and a honeytoken (a planted bearer, GATEWAY_HONEYTOKEN). A banned IP is refused with 429 by the abuseGuard middleware before any work — covering the Connect edge, the live stream and the static SPA/landing the per-op limiter never gated. The ban is off by default: it keys by the real client IP the shared-NAT test contour does not expose, so a ban there would be self-inflicted; detection still logs in the contour, only the ban action is gated (GATEWAY_ABUSE_BAN_ENABLED). Rejection bans last GATEWAY_ABUSE_BAN_DURATION; tripwire/honeytoken hits are near-zero-false-positive and earn longer fixed bans. Each ban increments gateway_abuse_banned_total{reason}. Operators see and lift active bans on the admin console's Throttled page; the gateway syncs its active set to the backend every 30s (POST /api/v1/internal/bans/sync, backend/internal/banview) and applies the operator unbans the response returns. PRERELEASE phase AG. Docs baked into ARCHITECTURE / FUNCTIONAL (+ru) / both READMEs.	2026-06-21 08:54:20 +02:00
Ilia Denisov	419ea11b14	feat(feedback): in-app user feedback with admin review and account roles ... User-facing Feedback screen (Settings -> Info, registered accounts only): a message (<=1024 runes) plus one optional attachment, an anti-spam gate (one unreviewed message at a time), and the operator's inline reply with a Settings/Info badge. Server-rendered admin console section (/_gm/feedback): unread/read/archived queue with per-user search, detail with read/reply/ archive/delete/delete-all, safe attachment serving (nosniff, images inline via <img>, others download-only). Introduces account_roles, the first per-account role table; feedback_banned blocks only feedback submission, granted/revoked from /users and the delete-with-block action. - migration 00004_feedback (feedback_messages + account_roles) + jetgen - backend internal/feedback (store+service), internal/account/roles.go - wire: FlatBuffers feedback.submit/get/unread; gateway guest gate (Op.NonGuest, is_guest via session resolve) -> guest_forbidden before any backend call - reply push reuses NotificationEvent with a new admin_reply sub-kind - UI: /feedback route + screen, attachment picker, badge, channel detection, i18n - tests: feedback unit (Go+UI), gateway guest-gate, inttest lifecycle, e2e - docs: PLAN stage 19, ARCHITECTURE s15, FUNCTIONAL(+ru), TESTING, READMEs	2026-06-15 12:23:10 +02:00
Ilia Denisov	0f3671f42d	feat(admin): online dictionary update — upload archive, preview word diff, install & activate ... Replace the dictionary hot-reload with an online update flow in the GM console (/_gm/dictionary): the operator uploads scrabble-dawg-vX.Y.Z.tar.gz, previews the per-variant words added/removed against the active dictionary, and confirms to install + activate it. Versions are immutable; in-progress games keep their pinned version while new games use the new one. - engine: DiffWords (enumerate both DAWGs, decode only the differences), OpenFinder, Registry.Finder, DictFiles; OpenWithVersions skips the .staging area. - dictadmin: hardened release-archive validation + extraction (path-traversal, symlink, oversize, entry-count rejection) and staging -> install (atomic rename). - game: active dictionary version persisted in the dictionary_state singleton (single source of truth, restored on boot), concurrency-safe accessor. - storage: BACKEND_DICT_DIR is a named volume seeded from the image (nonroot-owned), so uploaded versions persist across redeploys; the build's DICT_VERSION labels the seed and equals the resident tag (BACKEND_DICT_VERSION). - docs: ARCHITECTURE §5, FUNCTIONAL (+ru), backend README, TESTING, PRERELEASE. Tests: engine + dictadmin unit; integration upload->preview->install->activate-> restart->pin->immutability->CSRF.	2026-06-13 23:29:06 +02:00
Ilia Denisov	8881214213	R6(a): de-stage code, docs, READMEs; split stage6_test ... Mechanical, behaviour-preserving removal of Stage N / TODO-N / phase (RN) references from comments, doc-comments, service READMEs, the current-state docs (ARCHITECTURE, FUNCTIONAL+_ru, TESTING, UI_DESIGN), config-file comments, and the .fbs/.proto schema comments. PLAN.md / PRERELEASE.md / CLAUDE.md keep the stage history. - Rename the only stage-named identifiers: registerStage8 -> registerSocialOps, registerStage11 -> registerLinkOps (gateway transcode). - Split stage6_test.go: TestEmailLoginFlow -> email_test.go, TestGuestAutoMatchLeavesNoStats (+ provisionGuest) -> account_test.go. - Regenerated proto bindings (push.pb.go, telegram_grpc.pb.go) from the de-staged .proto comments; FB Go/TS bindings unchanged (flatc strips schema comments). go build/vet/gofmt clean across modules; integration typecheck and pnpm check green.	2026-06-10 16:56:03 +02:00
Ilia Denisov	f20a4b49ff	R3: split the landing into its own static container ... - gateway/Dockerfile gains a `landing` target: caddy:2-alpine + the shared Vite build (identical build args keep the ui stage a single cached build); the gateway target drops landing.html from the embed. - The contour caddy routes /app/, /telegram/ and the Connect path to the gateway; the catch-all — the landing at / and any stray path — goes to the new landing service, so junk traffic is absorbed by static file serving. - deploy/landing/Caddyfile mirrors the webui caching (immutable assets, no-cache shells) and falls back unknown paths to the landing shell. - The gateway's / now 308-redirects to /app/ (keeps a local no-caddy run usable); webui placeholder landing.html removed. - CI deploy probe checks both / (landing) and /app/ (gateway). Verified: both images build; the landing container serves landing.html at / (no-cache) with junk-path fallback; the gateway image redirects / to /app/ and carries no landing content.	2026-06-10 02:20:10 +02:00
Ilia Denisov	8878711cf3	R3: gateway edge hardening — body cap, h2c sizing, rate-limit observability ... - GATEWAY_MAX_BODY_BYTES (1 MiB): connect WithReadMaxBytes + http.MaxBytesReader on the public mux; explicit http2.Server MaxConcurrentStreams/IdleTimeout and an http.Server ReadHeaderTimeout (R2 report follow-up). - gateway_rate_limited_total{class} counter, Debug per rejection, a rejection tracker drained every 30 s into a Warn summary per key and a report POST to /api/v1/internal/ratelimit/report (feeds the admin view + auto-flag). - The dead AdminPerMinute/AdminBurst policy now guards the /_gm mount (429), ahead of its Basic-Auth. - resolve() logs the cause of infra session-resolve failures at Warn (the transient unauthenticated dips from the R2 run); unknown tokens stay silent.	2026-06-10 01:58:48 +02:00
Ilia Denisov	645df52c0b	Round-6 follow-up: UX polish + client-IP fix ... - Client IP: the compose caddy trusts X-Forwarded-For from private-range upstreams (trusted_proxies private_ranges), so the real client IP survives the host-caddy hop (it was logging the docker caddy hop 172.18.0.x for chat moderation and bucketing the gateway per-IP rate limiter on it). Correct and spoof-safe in both contours (prod has no host caddy); peerIP unit-tested. - Ad banner gated off behind a compile-time SHOW_AD_BANNER=false (the if-branch, the AdBanner import and banner.ts are tree-shaken out of the prod bundle). - Landing: the Telegram entry is just the 64px logo (clickable, no button/text). - TG-fullscreen header: title + menu centred as a pair (hamburger right of the title), pinned to the bottom of the TG nav band. - Edge-swipe back (Screen): a left-edge rightward drag navigates to back (touch/pen only, armed from <=24px; skipped inside Telegram). - Chat soft-keyboard: a bottom-sheet Modal lifted above the keyboard by a visualViewport-driven transform (compositor-only, no page/sheet relayout). iOS-specific, needs on-device tuning; native resize=none awaits Capacitor. - Tests: e2e for the in-game '✓ in friends' item and a board→board tile relocation; codec units for last_activity_unix + OutgoingRequestList. Deferred to the next PR (agreed): #4 enrich the your-turn/game-end push; #5 hide finished games from the lobby.	2026-06-08 21:31:44 +02:00
Ilia Denisov	e16076c89e	Stage 17 round 6 (#16-20): landing page, /app/ move, cache + stream fixes ... Close out Stage 17 round 6: - Landing page at / — one Vite build with two entries (index.html = game SPA, landing.html = a lightweight landing reusing the theme/i18n/ aboutContent leaf modules, not the app store). - Move the web game SPA to /app/; the Telegram Mini App stays at /telegram/ (gateway webui.Handler(stripPrefix, indexName): landing at /, SPA at /app/ + /telegram/). Per-language "Play in Telegram" link via new VITE_TELEGRAM_LINK_EN/_RU build vars (button hides when unset). - Cache headers: hash-named /assets/* immutable, HTML shells no-cache (the go:embed zero modtime emitted no validators, so the client re-downloaded the whole bundle every launch). - Live-stream 15s abort fix: an immediate heartbeat on open + a 10s default interval (the first tick at 15s raced the edge idle timeout -> reconnect storm). PLAN/ARCHITECTURE(§13)/FUNCTIONAL(+ru)/gateway+ui+deploy READMEs updated; round 6 closed. Tests: gateway webui/connectsrv units, ui landing unit + e2e, full e2e (60) green.	2026-06-08 13:33:05 +02:00
Ilia Denisov	8700fbfae1	Stage 16: deploy infra & test contour ... - backend + gateway multi-stage distroless Dockerfiles; the gateway embeds and serves the SPA at / and /telegram/ via go:embed (committed dist placeholder, real build baked in by the image's node stage) - deploy/docker-compose.yml: backend + gateway + Postgres + Telegram connector (VPN sidecar) + OTel Collector + Prometheus (15d) + Tempo (72h) + Grafana, fronted by a caddy owning a single /_gm Basic-Auth (admin console + Grafana subpath); inter-service on a private network, only caddy on the edge network - new metrics: backend accounts_created_total{kind} (robots excluded) and an in-memory gateway active_users{window=24h,7d} gauge - CI: single .gitea/workflows/ci.yaml (unit/integration/ui + a gated test-contour deploy) on the new feature/* -> development -> master branch model; the old go-unit/integration/ui-test workflows are folded in; the connector-scoped compose is retired (superseded by deploy/) - docs: ARCHITECTURE §11/§12/§13, root + gateway READMEs, CLAUDE.md branching, PLAN.md (stage 16 done + refinements + Stage 17 forward-notes)	2026-06-05 11:42:26 +02:00
Ilia Denisov	dcd8de8b00	Stage 12: observability & performance (OTel/OTLP, domain metrics, guest GC) ... - pkg/telemetry: shared OTel provider bootstrap (none/stdout/otlp + W3C propagators + Go runtime metrics); backend/internal/telemetry becomes a thin facade keeping its gin middleware. - Telemetry parity: gateway and the Telegram connector gain telemetry runtimes and config (GATEWAY_/TELEGRAM_ SERVICE_NAME + OTEL_*); otelgrpc instruments the backend push server, the gateway's backend+connector clients and the connector server. Default exporter stays none (collector/dashboards are Stage 14). - Operational metrics (variant attribute on game-scoped ones): game_replay_duration, game_move_validate_duration, games_started_total, games_abandoned_total, game_cache_active, chat_messages_total{kind}, gateway edge_request_duration. Wired via the SetMetrics setter pattern (default no-op meter). - TODO-3: account.GuestReaper deletes guests with no game seat past BACKEND_GUEST_RETENTION (default 30d, swept every BACKEND_GUEST_REAP_INTERVAL). - Tests: pkg/telemetry exporter selection; game/social/edge metric recording via a manual reader; config (otlp accepted, guest knobs); inttest guest reaper. - Docs: PLAN.md re-scopes Stage 12 and adds Stage 13 (alphabet-on-wire) + Stage 14 (CI/deploy) with the agreed dictionary-versioning resolution; ARCHITECTURE 11/13, TESTING, the three READMEs and FUNCTIONAL(+ru) updated.	2026-06-04 14:22:15 +02:00
developer	3a640a17a4	Stage 10: admin console & dictionary ops (complaint review, hot-reload, broadcasts) (#11)	2026-06-04 07:27:49 +00:00
Ilia Denisov	408da3f201	Stage 6: gateway edge (Connect/FlatBuffers over h2c, platform/email/guest auth, sessions, rate-limit, admin passthrough, live push bridge) ... New public ingress and the first network edge. Framework + a vertical slice of operations end-to-end; remaining ops reuse the same transcode pattern in Stage 7. Contracts (new module scrabble/pkg): - push.proto (backend->gateway gRPC server-stream) + scrabble.fbs (FlatBuffers edge payloads), committed generated Go; buf/flatc Makefiles (dev-time codegen). Backend: - REST handlers on the /api/v1 groups: internal session endpoints (telegram/guest/email login -> mint, resolve, revoke) and the user slice (profile, submit_play, state, lobby enqueue/poll, chat). - internal/notify in-process Publisher hub + internal/pushgrpc gRPC server (BACKEND_GRPC_ADDR) streaming your_turn/opponent_moved/chat/nudge/match_found; emission in game.commit, social, matchmaker. - migration 00005 accounts.is_guest; guests are durable rows excluded from stats; ProvisionGuest; email-as-login (RequestLoginCode/LoginWithCode). Gateway (new module scrabble/gateway): - Connect Gateway service over h2c (Execute + Subscribe), FlatBuffers<->JSON transcode registry, Telegram initData HMAC validator (seam), session cache, token-bucket rate limiter (3 classes), push fan-out hub, backend REST + push gRPC client, admin Basic-Auth reverse proxy. go.work: use ./pkg, ./gateway + replace scrabble/pkg. CI: gateway/**, pkg/** path filters; unit build/vet/test span all three modules. Docs (PLAN, ARCHITECTURE, FUNCTIONAL+ru, TESTING, READMEs) updated; gateway/pkg unit tests + guest/email-login integration tests.	2026-06-02 22:38:24 +02:00