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Merge pull request #1270 from bilawalsidhu/codex/fix-space-provider-cooldowns
fix(space): respect provider cooldowns and bound TLE groups
This commit is contained in:
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+335
-30
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@@ -0,0 +1 @@
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- Respect provider cooldowns and bound tle groups (asturksever, #1270).
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+9
-12
@@ -9,18 +9,15 @@ broader suffix variants. Follow-ups retain boundary provenance, and cancelled
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lookups preserve the previous analyst cohort and boundary source. Navigation
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search keeps a successful geocode, with no search or view-based region recovery.
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Radio tags are lowercased and whitespace-normalized before the final 80-character
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cap, including requested-tag coverage matching. Malformed station rows are skipped
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individually on the server and the client; valid rows retain their accepted
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catalog generation. The server's `/stations` envelope carries
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`rejectedStationCount`, the structurally malformed upstream rows it skipped
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(capped at 10,000; policy-filtered rows such as offline or non-HTTPS streams are
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not counted). It is diagnostic only and never fails catalog health. The client
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adds its own rejected rows after admission, so the UI snapshot reports the
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combined, capped `rejectedStationCount` and degraded coverage when either side
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skipped rows. Destroy resets the count. Malformed envelope, freshness, generation
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or rejection-count metadata and all-invalid responses still preserve the previous
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usable catalog.
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CelesTrak accepts only the eight satellite groups used by the app (the seven
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satellite-layer groups plus `active` for Space Missions) and gates cross-site
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requests before provider work with the keyless same-site policy, so the
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documented reverse proxy still works. CelesTrak and Launch Library failures
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start a provider-wide cooldown that a later failure never shortens: Retry-After
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seconds or HTTP dates are bounded to 5 seconds through 30 minutes, with a
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60-second fallback. During cooldown dated last-good data is served with stale
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provenance, otherwise the proxy returns a bounded error without another upstream
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attempt. Error bodies are cancelled before reading.
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Terrain height requests accept at most 64 points, matching the browser service's
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existing batch size and one bounded upstream chunk. Larger requests return HTTP
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@@ -103,6 +103,9 @@
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"modules": [
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"server/providers/space.js",
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"server/providers/space/celestrak.js",
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"server/providers/common/same-site.js",
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"src/localRequestGate.mjs",
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"server/providers/space/cooldown.js",
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"server/providers/space/launch-library.js",
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"server/providers/common/http.js",
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"src/data/spaceProviderRequests.js",
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@@ -1,6 +1,8 @@
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import path from 'node:path';
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import { promises as fsp } from 'node:fs';
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import { celestrakTleUrl } from '../../../src/data/spaceProviderRequests.js';
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import { providerCooldownMs } from './cooldown.js';
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import { admitSameSiteKeyless } from '../common/same-site.js';
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import { readResponseTextCapped } from '../common/http.js';
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/**
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@@ -24,6 +26,18 @@ import { readResponseTextCapped } from '../common/http.js';
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export function celestrakProxy() {
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const TLE_TTL_MS = 6 * 3600_000;
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const CACHE_DIR = path.join(process.cwd(), '.gev-cache');
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const groups = new Set([
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'stations',
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'visual',
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'gps-ops',
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'glo-ops',
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'galileo',
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'geo',
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'starlink',
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// Space Missions (`getActiveTle`) reads the full active catalog.
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'active',
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]);
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let cooldownUntil = 0;
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const mem = new Map(); // group -> { at: epochMs, body: string }
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const inflight = new Map(); // group -> Promise<{at, body}|null>
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@@ -64,7 +78,16 @@ export function celestrakProxy() {
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'gods-eye-view-celestrak-proxy/1.0 (+https://github.com/bilawalsidhu/gods-eye-view)',
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},
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});
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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if (!res.ok) {
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// Group refreshes run in parallel: a later failure without Retry-After
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// must never shorten a longer deadline an earlier one already set.
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cooldownUntil = Math.max(
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cooldownUntil,
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Date.now() + providerCooldownMs(res),
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);
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void res.body?.cancel().catch(() => {});
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throw new Error(`HTTP ${res.status}`);
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}
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const body = await readResponseTextCapped(
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res,
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CELESTRAK_MAX_RESPONSE_BYTES,
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@@ -80,12 +103,20 @@ export function celestrakProxy() {
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const group = String(req.url || '')
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.replace(/^\//, '')
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.split('?')[0];
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if (!/^[a-z0-9-]+$/i.test(group)) {
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// Keyless and needed to render the satellites layer: refuse cross-site
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// browsers but keep the documented reverse-proxy deployment working.
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if (admitSameSiteKeyless(req, res)) return;
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if (req.method !== 'GET') {
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res.writeHead(405);
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res.end();
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return;
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}
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if (!groups.has(group)) {
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res.writeHead(400, { 'Content-Type': 'text/plain' });
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res.end('invalid group');
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return;
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}
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const send = (status, body, cacheStatus) => {
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const send = (status, body, cacheStatus, entry) => {
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// Guard against a double-send (e.g. a throw AFTER a response already
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// went out routing into the catch's send): writeHead after headersSent
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// throws "Cannot set headers after they are sent".
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@@ -93,6 +124,17 @@ export function celestrakProxy() {
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res.writeHead(status, {
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'Content-Type': 'text/plain',
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'x-tle-cache': cacheStatus,
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'Cache-Control': 'no-store',
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...(entry
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? { 'X-TLE-Cached-At': new Date(entry.at).toISOString() }
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: {}),
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...(cooldownUntil > 0 && Date.now() < cooldownUntil
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? {
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'Retry-After': String(
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Math.ceil((cooldownUntil - Date.now()) / 1000),
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),
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}
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: {}),
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});
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res.end(body);
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};
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@@ -104,7 +146,16 @@ export function celestrakProxy() {
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if (entry) mem.set(group, entry);
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}
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if (entry && now - entry.at < TLE_TTL_MS) {
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send(200, entry.body, 'HIT');
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send(200, entry.body, 'HIT', entry);
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return;
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}
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if (Date.now() < cooldownUntil) {
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send(
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entry ? 200 : 502,
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entry?.body || 'celestrak upstream cooling down',
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entry ? 'STALE-ERROR' : 'NONE',
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entry,
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);
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return;
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}
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// Stale or missing → refresh, single-flight per group.
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@@ -118,6 +169,8 @@ export function celestrakProxy() {
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return fresh;
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})
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.catch((err) => {
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if (Date.now() >= cooldownUntil)
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cooldownUntil = Date.now() + 60000;
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console.warn(
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'[celestrak-proxy] refresh failed — serving cache if any',
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);
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@@ -128,9 +181,9 @@ export function celestrakProxy() {
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}
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const fresh = await inflight.get(group);
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if (fresh) {
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send(200, fresh.body, 'MISS');
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send(200, fresh.body, 'MISS', fresh);
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} else if (entry) {
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send(200, entry.body, 'STALE-ERROR'); // upstream down — stale beats empty
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send(200, entry.body, 'STALE-ERROR', entry); // upstream down — stale beats empty
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} else {
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send(502, 'celestrak fetch failed and no cache available', 'NONE');
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}
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@@ -0,0 +1,12 @@
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/** Bound an upstream Retry-After delay (seconds or HTTP date). */
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export function providerCooldownMs(response, now = Date.now()) {
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const raw = response?.headers?.get('retry-after')?.trim();
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const seconds = raw && /^\d+(?:\.\d+)?$/.test(raw) ? Number(raw) : NaN;
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const deadline = raw && !Number.isFinite(seconds) ? Date.parse(raw) : NaN;
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const delay = Number.isFinite(seconds)
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? seconds * 1000
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: Number.isFinite(deadline)
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? deadline - now
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: 60000;
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return Math.min(30 * 60000, Math.max(5000, delay));
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}
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@@ -1,4 +1,5 @@
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import path from 'node:path';
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import { providerCooldownMs } from './cooldown.js';
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import { promises as fsp } from 'node:fs';
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import {
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readResponseTextCapped,
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@@ -30,6 +31,8 @@ export function rocketLaunchesProxy() {
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'launch-library-2-v2.3.json',
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);
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let cache = null;
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let cooldownUntil = 0;
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let cooldownStatus = 502;
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let diskLoaded = false;
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const inFlight = new Map();
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@@ -62,7 +65,18 @@ export function rocketLaunchesProxy() {
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function send(res, status, body, cacheState) {
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res.writeHead(status, {
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'Content-Type': 'application/json',
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'Cache-Control': status === 200 ? 'public, max-age=900' : 'no-store',
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'Cache-Control':
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status === 200 && cacheState !== 'STALE-ERROR'
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? 'public, max-age=900'
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: 'no-store',
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...(cache ? { 'X-GEV-Cached-At': new Date(cache.at).toISOString() } : {}),
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...(Date.now() < cooldownUntil
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? {
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'Retry-After': String(
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Math.ceil((cooldownUntil - Date.now()) / 1000),
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),
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}
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: {}),
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'X-GEV-Cache': cacheState,
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});
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res.end(body);
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@@ -75,17 +89,25 @@ export function rocketLaunchesProxy() {
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signal: AbortSignal.timeout(20000),
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headers: launchLibraryRequestHeaders(),
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});
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const body = await readResponseTextCapped(upstream, maxResponseBytes);
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if (!upstream.ok) {
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const deadline = Date.now() + providerCooldownMs(upstream);
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// Never shorten a longer cooldown that is already in force.
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if (deadline >= cooldownUntil) {
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cooldownUntil = deadline;
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cooldownStatus = upstream.status;
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}
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void upstream.body?.cancel().catch(() => {});
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const error = new Error(`upstream HTTP ${upstream.status}`);
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error.upstreamStatus = upstream.status;
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throw error;
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}
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const body = await readResponseTextCapped(upstream, maxResponseBytes);
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const parsed = JSON.parse(body);
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if (!Array.isArray(parsed?.results))
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throw new Error('malformed upstream response');
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const fresh = { at: Date.now(), body };
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cache = fresh;
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cooldownUntil = 0;
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void saveDiskCache(fresh);
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return fresh;
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}
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@@ -103,6 +125,16 @@ export function rocketLaunchesProxy() {
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return;
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}
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const stale = cache;
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if (now < cooldownUntil) {
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send(
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res,
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stale ? 200 : cooldownStatus,
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stale?.body ||
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JSON.stringify({ error: 'Launch Library 2 unavailable' }),
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stale ? 'STALE-ERROR' : 'NONE',
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);
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return;
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}
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const request = coalesceProxyRequest(
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inFlight,
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'recent-launches',
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@@ -112,6 +144,10 @@ export function rocketLaunchesProxy() {
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const fresh = await request.promise;
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send(res, 200, fresh.body, request.shared ? 'INFLIGHT' : 'MISS');
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} catch (error) {
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if (Date.now() >= cooldownUntil) {
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cooldownUntil = Date.now() + 60000;
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cooldownStatus = 502;
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}
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// Log only a bounded status, never upstream bodies, URLs, or credentials.
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const status = Number.isInteger(error?.upstreamStatus)
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? error.upstreamStatus
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@@ -2,6 +2,7 @@ import test from 'node:test';
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import assert from 'node:assert/strict';
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import { readFileSync } from 'node:fs';
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import path from 'node:path';
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import { providerCooldownMs } from '../server/providers/space/cooldown.js';
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import { parseTerrainPoints } from './data/terrainHeightsProxy.js';
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import { readResponseTextCapped, coalesceProxyRequest } from './sources/httpBody.js';
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import { makeRateLimiter, clientKey } from '../server/providers/common/rate-limit.js';
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@@ -23,7 +24,7 @@ function extract(name) {
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function fixture(name, overrides = {}, preview = false) {
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const logs = [];
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const deps = {
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readResponseTextCapped, coalesceProxyRequest,
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readResponseTextCapped, coalesceProxyRequest, providerCooldownMs,
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// The rate-limited proxies reach for these; give them the real ones so a
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// fixture request is throttled exactly as production would be.
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makeRateLimiter, clientKey,
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@@ -117,7 +118,7 @@ test('Launch Library retains single-flight, fresh cache, stale fallback, and met
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test('CelesTrak unexpected failures hide details', async () => {
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const app = fixture('celestrakProxy', { Date: { now() { throw new Error(detail); } } });
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const res = await app.request('/active');
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const res = await app.request('/stations');
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assert.equal(res.status, 500);
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assert.equal(res.body, 'celestrak proxy error');
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assert.equal(res.headers['x-tle-cache'], 'ERROR');
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@@ -126,7 +127,7 @@ test('CelesTrak unexpected failures hide details', async () => {
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test('CelesTrak retains invalid-group and unavailable responses', async () => {
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const app = fixture('celestrakProxy');
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assert.equal((await app.request('/../')).status, 400);
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const res = await app.request('/active');
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const res = await app.request('/stations');
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assert.equal(res.status, 502);
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assert.equal(res.headers['x-tle-cache'], 'NONE');
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});
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@@ -135,13 +136,13 @@ test('CelesTrak retains fresh and stale TLE caches', async () => {
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let now = Date.now();
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let calls = 0;
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const app = fixture('celestrakProxy', {
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Date: { now: () => now },
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Date: class extends Date { static now() { return now; } },
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fetch: async () => { if (++calls > 1) throw new Error(detail); return new Response('1 valid-fixture-TLE'); },
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});
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assert.equal((await app.request('/active')).headers['x-tle-cache'], 'MISS');
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assert.equal((await app.request('/active')).headers['x-tle-cache'], 'HIT');
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assert.equal((await app.request('/stations')).headers['x-tle-cache'], 'MISS');
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assert.equal((await app.request('/stations')).headers['x-tle-cache'], 'HIT');
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now += 7 * 3600_000;
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const stale = await app.request('/active');
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const stale = await app.request('/stations');
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assert.equal(stale.status, 200);
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assert.equal(stale.body, '1 valid-fixture-TLE');
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assert.equal(stale.headers['x-tle-cache'], 'STALE-ERROR');
|
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@@ -12,6 +12,7 @@ import {
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launchLibraryRecentUrl,
|
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} from 'gods-eye-view/sources/space';
|
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import * as compatibility from '../../server/providers/local.js';
|
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import { createLaunchSource } from 'gods-eye-view/layers/launches/source';
|
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function install(plugin, preview = false) {
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const routes = new Map();
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@@ -22,17 +23,23 @@ function install(plugin, preview = false) {
|
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},
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},
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});
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return async (route, url = '/', method = 'GET') => {
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return async (route, url = '/', method = 'GET', headers = {}) => {
|
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const res = {
|
||||
headersSent: false,
|
||||
headers: {},
|
||||
writeHead(status, headers) {
|
||||
Object.assign(this, { status, headers, headersSent: true });
|
||||
},
|
||||
// The same-site gates answer 403 through statusCode + setHeader.
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setHeader(name, value) {
|
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this.headers[name] = value;
|
||||
},
|
||||
end(body) {
|
||||
this.body = body;
|
||||
this.status ??= this.statusCode;
|
||||
},
|
||||
};
|
||||
await routes.get(route)({ url, method }, res);
|
||||
await routes.get(route)({ url, method, headers, socket: {} }, res);
|
||||
return res;
|
||||
};
|
||||
}
|
||||
@@ -161,7 +168,11 @@ test('CelesTrak answers 502 to an oversized TLE body without caching it', async
|
||||
assert.ok(bodies[0].pulled <= 17, 'reading stops at the 16 MiB cap');
|
||||
assert.equal(fsp.writeFile.mock.callCount(), 0);
|
||||
assert.equal((await request('/api/celestrak', '/stations')).status, 502);
|
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assert.equal(bodies.length, 2, 'nothing was cached in memory');
|
||||
assert.equal(
|
||||
bodies.length,
|
||||
1,
|
||||
'failed bodies are not cached but a cooldown bounds retry work',
|
||||
);
|
||||
});
|
||||
|
||||
for (const preview of [false, true])
|
||||
@@ -190,3 +201,194 @@ for (const preview of [false, true])
|
||||
assert.equal(hit.body, first.body);
|
||||
assert.equal(calls, 1);
|
||||
});
|
||||
|
||||
test('space providers honor Retry-After, gate groups, preserve stale dates and recover', async (t) => {
|
||||
isolateDisk(t);
|
||||
t.mock.method(console, 'warn', () => {});
|
||||
let now = Date.now();
|
||||
t.mock.method(Date, 'now', () => now);
|
||||
for (const kind of ['tle', 'launches']) {
|
||||
for (const retryAfter of ['90', new Date(now + 90000).toUTCString()]) {
|
||||
let calls = 0;
|
||||
let fail = false;
|
||||
let cancelled = false;
|
||||
t.mock.method(globalThis, 'fetch', async () => {
|
||||
calls++;
|
||||
if (fail)
|
||||
return new Response(
|
||||
new ReadableStream({
|
||||
cancel() {
|
||||
cancelled = true;
|
||||
},
|
||||
}),
|
||||
{
|
||||
status: kind === 'tle' ? 403 : 429,
|
||||
headers: { 'Retry-After': retryAfter },
|
||||
},
|
||||
);
|
||||
return new Response(
|
||||
kind === 'tle'
|
||||
? 'ISS\n1 25544U fixture\n2 25544 fixture\n'
|
||||
: '{"results":[]}',
|
||||
);
|
||||
});
|
||||
const request = install(
|
||||
kind === 'tle' ? celestrakProxy() : rocketLaunchesProxy(),
|
||||
);
|
||||
const route = kind === 'tle' ? '/api/celestrak' : '/api/launches';
|
||||
const url = kind === 'tle' ? '/stations' : '/';
|
||||
if (kind === 'tle') {
|
||||
assert.equal(
|
||||
(await request(route, '/not-a-supported-group')).status,
|
||||
400,
|
||||
);
|
||||
assert.equal(calls, 0);
|
||||
}
|
||||
const first = await request(route, url);
|
||||
now += 7 * 3600000;
|
||||
// Recompute the HTTP-date relative to the clock at the failed refresh.
|
||||
const originalFetch = globalThis.fetch;
|
||||
t.mock.method(globalThis, 'fetch', async (...args) => {
|
||||
const response = await originalFetch(...args);
|
||||
if (fail && !/^\d+$/.test(retryAfter))
|
||||
response.headers.set(
|
||||
'Retry-After',
|
||||
new Date(now + 90000).toUTCString(),
|
||||
);
|
||||
return response;
|
||||
});
|
||||
fail = true;
|
||||
const stale = await request(route, url);
|
||||
assert.equal(stale.status, 200);
|
||||
assert.equal(stale.body, first.body);
|
||||
assert.equal(stale.headers['Retry-After'], '90');
|
||||
assert.ok(
|
||||
stale.headers[kind === 'tle' ? 'X-TLE-Cached-At' : 'X-GEV-Cached-At'],
|
||||
);
|
||||
assert.equal(cancelled, true);
|
||||
await request(route, url);
|
||||
if (kind === 'tle')
|
||||
assert.equal((await request(route, '/visual')).status, 502);
|
||||
assert.equal(calls, 2, 'cooldown applies across TLE groups');
|
||||
now += 91000;
|
||||
fail = false;
|
||||
assert.equal((await request(route, url)).status, 200);
|
||||
assert.equal(calls, 3);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
test('Space Missions reads the active catalog through the real proxy while unknown groups stay rejected', async (t) => {
|
||||
isolateDisk(t);
|
||||
const tle = 'ISS\n1 25544U fixture\n2 25544 fixture\n';
|
||||
const fetched = [];
|
||||
t.mock.method(globalThis, 'fetch', async (url) => {
|
||||
fetched.push(new URL(url).searchParams.get('GROUP'));
|
||||
return new Response(tle);
|
||||
});
|
||||
const request = install(celestrakProxy());
|
||||
// Route the browser source's real request into the middleware.
|
||||
const source = createLaunchSource({
|
||||
fetchImpl: async (url) => {
|
||||
const prefix = '/api/celestrak';
|
||||
assert.ok(url.startsWith(`${prefix}/`));
|
||||
const res = await request(prefix, url.slice(prefix.length));
|
||||
return new Response(res.body, { status: res.status });
|
||||
},
|
||||
});
|
||||
assert.equal(await source.getActiveTle(), tle);
|
||||
assert.deepEqual(fetched, ['active']);
|
||||
for (const group of ['/not-a-group', '/active-extra', '/../active'])
|
||||
assert.equal((await request('/api/celestrak', group)).status, 400);
|
||||
assert.deepEqual(fetched, ['active'], 'rejected groups never reach upstream');
|
||||
});
|
||||
|
||||
test('CelesTrak admits a same-origin request behind the documented reverse proxy and refuses foreign origins', async (t) => {
|
||||
isolateDisk(t);
|
||||
let calls = 0;
|
||||
t.mock.method(globalThis, 'fetch', async () => {
|
||||
calls++;
|
||||
return new Response('ISS\n1 25544U fixture\n2 25544 fixture\n');
|
||||
});
|
||||
const request = install(celestrakProxy());
|
||||
const proxied = {
|
||||
host: 'gev.example.test',
|
||||
'x-forwarded-for': '203.0.113.7',
|
||||
'x-forwarded-host': 'gev.example.test',
|
||||
'x-forwarded-proto': 'https',
|
||||
via: '1.1 proxy',
|
||||
};
|
||||
const app = await request('/api/celestrak', '/stations', 'GET', {
|
||||
...proxied,
|
||||
origin: 'https://gev.example.test',
|
||||
'sec-fetch-site': 'same-origin',
|
||||
});
|
||||
assert.equal(app.status, 200);
|
||||
assert.equal(app.headers['x-tle-cache'], 'MISS');
|
||||
assert.equal(calls, 1);
|
||||
for (const headers of [
|
||||
{ ...proxied, origin: 'https://unrelated.example' },
|
||||
{ ...proxied, origin: 'null' },
|
||||
{ ...proxied, 'sec-fetch-site': 'cross-site' },
|
||||
]) {
|
||||
const refused = await request('/api/celestrak', '/visual', 'GET', headers);
|
||||
assert.equal(refused.status, 403);
|
||||
}
|
||||
assert.equal(calls, 1, 'refused requests do no provider or cache work');
|
||||
});
|
||||
|
||||
for (const longFirst of [true, false])
|
||||
test(`CelesTrak keeps the longest cooldown when concurrent failures finish ${longFirst ? 'long then short' : 'short then long'}`, async (t) => {
|
||||
isolateDisk(t);
|
||||
t.mock.method(console, 'warn', () => {});
|
||||
let now = Date.now();
|
||||
t.mock.method(Date, 'now', () => now);
|
||||
const pending = new Map();
|
||||
let calls = 0;
|
||||
t.mock.method(globalThis, 'fetch', async (url) => {
|
||||
calls++;
|
||||
const group = new URL(url).searchParams.get('GROUP');
|
||||
await new Promise((resolve) => pending.set(group, resolve));
|
||||
return group === 'stations'
|
||||
? new Response('slow down', {
|
||||
status: 429,
|
||||
headers: { 'Retry-After': '1800' },
|
||||
})
|
||||
: new Response('unavailable', { status: 503 });
|
||||
});
|
||||
const request = install(celestrakProxy());
|
||||
const long = request('/api/celestrak', '/stations');
|
||||
const short = request('/api/celestrak', '/visual');
|
||||
while (pending.size < 2) await new Promise(setImmediate);
|
||||
const order = longFirst
|
||||
? [
|
||||
['stations', long],
|
||||
['visual', short],
|
||||
]
|
||||
: [
|
||||
['visual', short],
|
||||
['stations', long],
|
||||
];
|
||||
for (const [group, response] of order) {
|
||||
pending.get(group)();
|
||||
assert.equal((await response).status, 502);
|
||||
}
|
||||
assert.equal(calls, 2);
|
||||
const cooling = await request('/api/celestrak', '/geo');
|
||||
assert.equal(cooling.status, 502);
|
||||
assert.equal(cooling.headers['Retry-After'], '1800');
|
||||
now += 61_000;
|
||||
assert.equal((await request('/api/celestrak', '/geo')).status, 502);
|
||||
assert.equal(
|
||||
calls,
|
||||
2,
|
||||
'the 60 s fallback did not replace the 30 min deadline',
|
||||
);
|
||||
now += 1800_000;
|
||||
t.mock.method(
|
||||
globalThis,
|
||||
'fetch',
|
||||
async () => new Response('ISS\n1 25544U fixture\n2 25544 fixture\n'),
|
||||
);
|
||||
assert.equal((await request('/api/celestrak', '/geo')).status, 200);
|
||||
});
|
||||
Reference in new issue
Block a user