Refuse a client whose IP is in a curated CIDR feed with 403 in the same
abuseGuard, before the fail2ban ban. Prod-only (keys by real client IP), off by
default.
- ratelimit.Blocklist: a sorted-range IPv4 matcher (binary search) with an
allowlist checked first; ParseDROP reads the feed; ApplyRefresh keeps the
last-good feed on a transient fetch failure and drops it fail-open once stale
(better to under-block than block a legitimate client on a frozen feed). A
separate static CIDR set, not the per-IP fail2ban store.
- gateway: a refresher goroutine re-fetches every few hours (bounded fetch + size
cap); config GATEWAY_BLOCKLIST_{ENABLED,URL,ALLOW,REFRESH,MAX_STALENESS}.
IPv6 is not matched (a v6 client is still covered by fail2ban / the honeypot).
- observability: gateway_blocklist_blocked_total + entries/age gauges; a Grafana
alert warns before the feed is dropped; service-overview panels.
- deploy: compose env + write-prod-env.sh + prod-deploy/rollback wiring (opt-in
via PROD_ vars).
- docs (ARCHITECTURE, deploy/README); unit tests (match, allowlist, IPv6 skip,
parser, fault-tolerance) + a 403 abuse-guard integration test.
Sales (chip packs) first, ascending by rouble price; then the chip-exchange
values, grouped and price-sorted the same way projectOfferPricing lists them, so
the /catalog console mirrors what a buyer sees. Internal cosmetics only — no
product behaviour change. The value-group order moves to a shared helper
(valueGroup) so the offer and the admin list cannot drift.
The bot runs on its own host and exports no telemetry (otelcol is unreachable
from there), so it was a monitoring blind spot. Observe its Bot API health
centrally by wrapping the HTTP client — one place, no per-call-site
instrumentation — and relay it up the existing bot-link as a periodic Health
message the gateway turns into its own metrics.
- proto: add Health (delta connect / api / 429 counters + a last-ok stamp) to
the FromBot oneof (additive, backward-compatible).
- bot: platform/telegram/internal/health wraps the Bot API HTTP client — it
stamps liveness on any 2xx (so the getUpdates long-poll keeps it fresh even
when idle), classifies transport/5xx failures (getUpdates vs other) and 429s,
and honours a 429's Retry-After (bounded) so the bot backs off; a 4xx other
than 429 is a normal per-request outcome and is not counted.
- bot-link client: flush the reporter as a Health message every 30s over a
single-sender loop (a gRPC stream forbids concurrent Send).
- gateway: fold each report into bot_tg_errors_total{kind} and the
bot_tg_last_ok_unix liveness gauge.
- grafana: alerts (bot disconnected, bot not reaching the Bot API, sustained
429s) routed to the operator email — which does not go through the bot — plus
a Telegram-bot dashboard.
- docs (ARCHITECTURE, compose comments); unit tests (observer classification,
Retry-After, snapshot/commit, hub last-ok monotonicity).
- packs sorted by ascending rouble price;
- values grouped hints-only -> no-ads-only -> no-ads+hints -> tournament
(the tournament group is empty until such products become sellable),
ascending chip price within each group;
- price columns right-aligned (GFM "---:" separators);
- tables span the full content width; the name column shrinks to its content
and never wraps;
- muted-but-visible cell borders on the dark theme, where the section rule
colour blends into the background.
The offer price list projects the admin-entered product title into a markdown
table cell that is rendered, unsanitised, into the public /offer/ page. Escape
the title at the projection boundary so it renders as literal text: HTML
metacharacters become entities and the markdown table pipe and link brackets are
escaped, so a title can neither inject markup nor form a javascript: link. The
committed offer prose keeps its trusted-content treatment (code-reviewed, not
runtime input).
Robokassa moderation requires the public offer to list every digital good with
its price. Move /offer/ off the static landing container to the render sidecar:
it splices the live catalog price list (§4.4) into the owner-edited
ui/legal/offer_ru.md and renders it with the shared ui/src/lib/offer.ts — one
renderer, no drift, always matching the current catalog with no redeploy.
- backend: /api/v1/internal/offer/pricing (internal, off the edge allow-list)
projects the active catalog into two markdown tables — chip packs priced per
rail (roubles / VK votes / Telegram Stars) and chip-priced values — through
payments.Money so no float reaches the page. Cached in memory: warmed at boot,
marked stale on every catalog mutation, so a served render issues no query.
- renderer: GET /offer/ fetches the tables and substitutes them at the
<#pricing_template#> marker, then renders; offer_ru.md is baked into the image
and marked is bundled from ui. GET /offer -> 301. Only /offer/ is edge-exposed.
- caddy: route /offer/ to the sidecar; drop the now-dead landing /offer/
handlers and the vite emit-offer plugin.
- offer: fill §4.3 (the chip-payment wording) and drop the in-page back link.
- landing footer: a feedback link (the offer's Telegram contact) beside the
offer link.
- docs (ARCHITECTURE, FUNCTIONAL +_ru, renderer README), CI /offer/ probe,
unit + integration + node tests.
developer
Ilia Denisov