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https://github.com/bilawalsidhu/gods-eye-view.git
synced 2026-11-15 07:42:23 +00:00
fix: register data providers for local preview
Adapt the preview middleware contribution from PR #324 to the extracted provider modules, including the existing OpenSky route.
This commit is contained in:
Jejugo authored and Sameh Khamis committed
1 parent
276bb84904
commit
a0f07b752f
10 files changed
+1100
-1089
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@@ -348,158 +348,23 @@ function openSkySourceIsStale(sourceEpochMs, now = Date.now()) {
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* @returns {import('vite').Plugin}
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*/
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export function openSkyProxy() {
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return {
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name: 'opensky-proxy',
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configureServer(server) {
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server.middlewares.use('/api/opensky', async (req, res) => {
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try {
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const requestedMode = normalizeOpenSkyAuthMode(
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process.env.OPENSKY_AUTH_MODE,
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);
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const now = Date.now();
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const inCooldown = now < _openskyCooldownUntil;
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// Fresh-enough cache (adaptive TTL) OR any cache during a 429
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// cooldown: serve it without touching upstream. Stale-during-cooldown
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// is deliberate (credit governor): last-good planes beat a dead layer.
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const installMiddleware = (server) => {
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server.middlewares.use('/api/opensky', async (req, res) => {
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try {
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const requestedMode = normalizeOpenSkyAuthMode(
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process.env.OPENSKY_AUTH_MODE,
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);
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const now = Date.now();
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const inCooldown = now < _openskyCooldownUntil;
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// Fresh-enough cache (adaptive TTL) OR any cache during a 429
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// cooldown: serve it without touching upstream. Stale-during-cooldown
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// is deliberate (credit governor): last-good planes beat a dead layer.
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if (
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_openskyCacheBody &&
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(now - _openskyCacheTime < _openskyTtlMs || inCooldown)
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) {
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if (
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_openskyCacheBody &&
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(now - _openskyCacheTime < _openskyTtlMs || inCooldown)
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) {
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if (
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openSkySourceIsStale(_openskyCacheSourceEpochMs, now) &&
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(await serveAdsbLolPointFallback(
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req,
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res,
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requestedMode,
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'opensky_snapshot_stale_regional_fallback',
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))
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) {
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return;
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}
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const cachedMeta = _openskyCacheMeta || {
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requestedMode,
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usedMode: 'unknown',
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reason: 'cached',
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};
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const isStale = now - _openskyCacheTime >= _openskyTtlMs;
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res.writeHead(
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_openskyCacheStatus || 200,
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buildOpenSkyHeaders({
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cacheStatus: isStale ? 'STALE' : 'HIT',
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requestedMode: cachedMeta.requestedMode || requestedMode,
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usedMode: cachedMeta.usedMode || 'unknown',
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reason: isStale
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? 'rate_limited_serving_stale'
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: cachedMeta.reason || 'cached',
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staleSeconds: isStale
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? (now - _openskyCacheTime) / 1000
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: undefined,
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retryAfterSeconds: inCooldown
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? (_openskyCooldownUntil - now) / 1000
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: undefined,
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}),
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);
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res.end(_openskyCacheBody);
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return;
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}
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// Cooling down with nothing cached (cold start into a rate limit):
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// synthesize the 429 locally — hammering upstream mid-cooldown can't
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// succeed and just burns goodwill.
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if (inCooldown) {
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if (
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await serveAdsbLolPointFallback(
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req,
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res,
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requestedMode,
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'opensky_cooldown_regional_fallback',
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)
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)
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return;
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res.writeHead(
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429,
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buildOpenSkyHeaders({
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cacheStatus: 'COOLDOWN',
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requestedMode,
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usedMode: 'none',
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reason: 'rate_limited',
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retryAfterSeconds: (_openskyCooldownUntil - now) / 1000,
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}),
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);
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res.end(
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JSON.stringify({
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error: 'OpenSky rate limited; proxy cooling down.',
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}),
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);
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return;
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}
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const basicUser = process.env.OPENSKY_USERNAME || '';
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const basicPass = process.env.OPENSKY_PASSWORD || '';
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const hasBasicCreds = Boolean(basicUser && basicPass);
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const headers = { Accept: 'application/json' };
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let usedMode = 'anon';
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let reason = 'forced_anonymous';
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if (requestedMode === 'basic') {
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if (hasBasicCreds) {
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headers.Authorization = `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`;
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usedMode = 'basic';
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reason = 'basic_credentials';
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} else {
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reason = 'missing_basic_creds';
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}
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} else if (requestedMode === 'oauth') {
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const token = await getOpenSkyToken();
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if (token) {
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headers.Authorization = `Bearer ${token}`;
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usedMode = 'oauth';
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reason = 'oauth_token';
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} else {
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reason = 'oauth_invalid_or_missing';
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}
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} else if (requestedMode === 'auto') {
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const token = await getOpenSkyToken();
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if (token) {
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headers.Authorization = `Bearer ${token}`;
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usedMode = 'oauth';
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reason = 'oauth_token';
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} else if (hasBasicCreds) {
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headers.Authorization = `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`;
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usedMode = 'basic';
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reason = 'oauth_unavailable_fallback_basic';
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} else {
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reason = 'missing_oauth_and_basic_creds';
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}
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}
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let upstream = await fetch(
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'https://opensky-network.org/api/states/all?extended=1',
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{ headers },
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);
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// Auto-mode fallback: if OAuth was rejected, retry with Basic credentials
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if (
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(upstream.status === 401 || upstream.status === 403) &&
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requestedMode === 'auto' &&
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usedMode === 'oauth' &&
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hasBasicCreds
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) {
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const retryHeaders = {
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Accept: 'application/json',
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Authorization: `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`,
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};
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upstream = await fetch(
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'https://opensky-network.org/api/states/all?extended=1',
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{ headers: retryHeaders },
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);
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usedMode = 'basic';
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reason = 'oauth_rejected_fallback_basic';
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}
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let body = await upstream.text();
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const sourceEpochMs = upstream.ok ? openSkySourceEpochMs(body) : null;
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if (
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upstream.ok &&
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openSkySourceIsStale(sourceEpochMs, now) &&
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openSkySourceIsStale(_openskyCacheSourceEpochMs, now) &&
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(await serveAdsbLolPointFallback(
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req,
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res,
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@@ -507,193 +372,330 @@ export function openSkyProxy() {
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'opensky_snapshot_stale_regional_fallback',
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))
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) {
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// Keep the last global snapshot available as a fail-soft cache,
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// but do not label or render it as a fresh live result.
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_openskyCacheBody = body;
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_openskyCacheStatus = upstream.status;
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_openskyCacheTime = now;
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_openskyCacheSourceEpochMs = sourceEpochMs;
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_openskyCacheMeta = { requestedMode, usedMode, reason };
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return;
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}
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if (upstream.status === 429) {
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reason = 'rate_limited';
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// Credit governor: honor OpenSky's retry-after (bounded 30 s … 30 min;
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// 2 min when the header is absent) — no upstream attempts until then.
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const retryAfterSec = Number(
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upstream.headers.get('x-rate-limit-retry-after-seconds'),
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);
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const cooldownMs = Math.min(
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Math.max(
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Number.isFinite(retryAfterSec) ? retryAfterSec * 1000 : 120_000,
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30_000,
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),
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30 * 60_000,
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);
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_openskyCooldownUntil = now + cooldownMs;
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// Serve the last-good body instead of the 429 when we have one —
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// the layer keeps rendering (STALE-cued) instead of dying.
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if (_openskyCacheBody && _openskyCacheStatus === 200) {
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res.writeHead(
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200,
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buildOpenSkyHeaders({
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cacheStatus: 'STALE',
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requestedMode,
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usedMode,
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reason: 'rate_limited_serving_stale',
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staleSeconds: (now - _openskyCacheTime) / 1000,
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retryAfterSeconds: cooldownMs / 1000,
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}),
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);
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res.end(_openskyCacheBody);
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return;
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}
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}
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if (!upstream.ok && !_openskyCacheBody) {
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const servedFallback = await serveAdsbLolPointFallback(
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req,
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res,
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requestedMode,
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`opensky_http_${upstream.status}_regional_fallback`,
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);
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if (servedFallback) return;
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}
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if (upstream.status === 401 || upstream.status === 403) {
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if (requestedMode === 'basic' && !hasBasicCreds) {
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body = JSON.stringify({
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error:
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'OpenSky auth missing. Basic mode requires OPENSKY_USERNAME and OPENSKY_PASSWORD.',
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});
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reason = 'missing_basic_creds';
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} else if (requestedMode === 'oauth' && usedMode !== 'oauth') {
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body = JSON.stringify({
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error:
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'OpenSky auth invalid. OAuth mode requires valid OPENSKY_CLIENT_ID and OPENSKY_CLIENT_SECRET.',
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});
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reason = 'oauth_invalid_or_missing';
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} else if (usedMode === 'basic') {
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body = JSON.stringify({
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error: 'OpenSky auth invalid. Username/password were rejected.',
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});
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reason = 'basic_invalid_credentials';
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} else if (usedMode === 'oauth') {
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body = JSON.stringify({
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error:
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'OpenSky auth invalid. OAuth client credentials were rejected.',
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});
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reason = 'oauth_invalid_credentials';
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} else if (requestedMode === 'auto' && !hasBasicCreds) {
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body = JSON.stringify({
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error:
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'OpenSky auth missing. Provide basic credentials or valid OAuth client credentials.',
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});
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reason = 'missing_oauth_and_basic_creds';
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} else {
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body = JSON.stringify({
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error: 'OpenSky auth required.',
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});
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reason = 'auth_required';
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}
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}
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// Refine the reason string to reflect the actual outcome
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if (upstream.ok && reason === 'forced_anonymous') {
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reason = 'anonymous_ok';
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} else if (
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upstream.ok &&
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usedMode === 'basic' &&
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reason === 'basic_credentials'
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) {
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reason = 'basic_ok';
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} else if (
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upstream.ok &&
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usedMode === 'oauth' &&
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reason === 'oauth_token'
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) {
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reason = 'oauth_ok';
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}
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// Only cache successful responses — error responses (401/403/429/5xx)
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// should not be served from cache on subsequent requests
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if (upstream.ok) {
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_openskyCacheBody = body;
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_openskyCacheStatus = upstream.status;
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_openskyCacheTime = now;
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_openskyCacheSourceEpochMs = sourceEpochMs;
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_openskyCacheMeta = {
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requestedMode,
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usedMode,
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reason,
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};
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// Credit governor: adapt the cache TTL to the remaining daily
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// budget so a continuously-open app stretches its polls instead of
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// exhausting the quota mid-day. Success also clears any cooldown.
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const remaining = Number(
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upstream.headers.get('x-rate-limit-remaining'),
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);
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_openskyTtlMs = openskyAdaptiveTtlMs(remaining);
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_openskyCooldownUntil = 0;
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}
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const cachedMeta = _openskyCacheMeta || {
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requestedMode,
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usedMode: 'unknown',
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reason: 'cached',
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};
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const isStale = now - _openskyCacheTime >= _openskyTtlMs;
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res.writeHead(
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upstream.status,
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_openskyCacheStatus || 200,
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buildOpenSkyHeaders({
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cacheStatus: 'MISS',
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requestedMode,
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usedMode,
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reason,
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cacheStatus: isStale ? 'STALE' : 'HIT',
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requestedMode: cachedMeta.requestedMode || requestedMode,
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usedMode: cachedMeta.usedMode || 'unknown',
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reason: isStale
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? 'rate_limited_serving_stale'
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: cachedMeta.reason || 'cached',
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staleSeconds: isStale
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? (now - _openskyCacheTime) / 1000
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: undefined,
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retryAfterSeconds: inCooldown
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? (_openskyCooldownUntil - now) / 1000
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: undefined,
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}),
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);
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res.end(body);
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} catch (e) {
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console.error('[OpenSky Proxy]', e.message);
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if (_openskyCacheBody) {
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const cachedMeta = _openskyCacheMeta || {
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requestedMode: normalizeOpenSkyAuthMode(
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process.env.OPENSKY_AUTH_MODE,
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),
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usedMode: 'unknown',
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reason: 'cached_stale',
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};
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res.writeHead(
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_openskyCacheStatus || 200,
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buildOpenSkyHeaders({
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cacheStatus: 'STALE',
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requestedMode:
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cachedMeta.requestedMode || OPENSKY_AUTH_MODE_DEFAULT,
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usedMode: cachedMeta.usedMode || 'unknown',
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reason: cachedMeta.reason || 'cached_stale',
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}),
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);
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res.end(_openskyCacheBody);
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return;
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}
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const requestedMode = normalizeOpenSkyAuthMode(
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process.env.OPENSKY_AUTH_MODE,
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);
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res.end(_openskyCacheBody);
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return;
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}
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// Cooling down with nothing cached (cold start into a rate limit):
|
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// synthesize the 429 locally — hammering upstream mid-cooldown can't
|
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// succeed and just burns goodwill.
|
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if (inCooldown) {
|
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if (
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await serveAdsbLolPointFallback(
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req,
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res,
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requestedMode,
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'opensky_proxy_error_regional_fallback',
|
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'opensky_cooldown_regional_fallback',
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)
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)
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return;
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res.writeHead(
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502,
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429,
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buildOpenSkyHeaders({
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cacheStatus: 'MISS',
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cacheStatus: 'COOLDOWN',
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requestedMode,
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usedMode: 'error',
|
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reason: 'proxy_error',
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usedMode: 'none',
|
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reason: 'rate_limited',
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retryAfterSeconds: (_openskyCooldownUntil - now) / 1000,
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}),
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);
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res.end(JSON.stringify({ error: 'OpenSky proxy error' }));
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res.end(
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JSON.stringify({
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error: 'OpenSky rate limited; proxy cooling down.',
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||||
}),
|
||||
);
|
||||
return;
|
||||
}
|
||||
});
|
||||
},
|
||||
|
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const basicUser = process.env.OPENSKY_USERNAME || '';
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const basicPass = process.env.OPENSKY_PASSWORD || '';
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const hasBasicCreds = Boolean(basicUser && basicPass);
|
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const headers = { Accept: 'application/json' };
|
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let usedMode = 'anon';
|
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let reason = 'forced_anonymous';
|
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|
||||
if (requestedMode === 'basic') {
|
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if (hasBasicCreds) {
|
||||
headers.Authorization = `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`;
|
||||
usedMode = 'basic';
|
||||
reason = 'basic_credentials';
|
||||
} else {
|
||||
reason = 'missing_basic_creds';
|
||||
}
|
||||
} else if (requestedMode === 'oauth') {
|
||||
const token = await getOpenSkyToken();
|
||||
if (token) {
|
||||
headers.Authorization = `Bearer ${token}`;
|
||||
usedMode = 'oauth';
|
||||
reason = 'oauth_token';
|
||||
} else {
|
||||
reason = 'oauth_invalid_or_missing';
|
||||
}
|
||||
} else if (requestedMode === 'auto') {
|
||||
const token = await getOpenSkyToken();
|
||||
if (token) {
|
||||
headers.Authorization = `Bearer ${token}`;
|
||||
usedMode = 'oauth';
|
||||
reason = 'oauth_token';
|
||||
} else if (hasBasicCreds) {
|
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headers.Authorization = `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`;
|
||||
usedMode = 'basic';
|
||||
reason = 'oauth_unavailable_fallback_basic';
|
||||
} else {
|
||||
reason = 'missing_oauth_and_basic_creds';
|
||||
}
|
||||
}
|
||||
|
||||
let upstream = await fetch(
|
||||
'https://opensky-network.org/api/states/all?extended=1',
|
||||
{ headers },
|
||||
);
|
||||
// Auto-mode fallback: if OAuth was rejected, retry with Basic credentials
|
||||
if (
|
||||
(upstream.status === 401 || upstream.status === 403) &&
|
||||
requestedMode === 'auto' &&
|
||||
usedMode === 'oauth' &&
|
||||
hasBasicCreds
|
||||
) {
|
||||
const retryHeaders = {
|
||||
Accept: 'application/json',
|
||||
Authorization: `Basic ${Buffer.from(`${basicUser}:${basicPass}`).toString('base64')}`,
|
||||
};
|
||||
upstream = await fetch(
|
||||
'https://opensky-network.org/api/states/all?extended=1',
|
||||
{ headers: retryHeaders },
|
||||
);
|
||||
usedMode = 'basic';
|
||||
reason = 'oauth_rejected_fallback_basic';
|
||||
}
|
||||
|
||||
let body = await upstream.text();
|
||||
const sourceEpochMs = upstream.ok ? openSkySourceEpochMs(body) : null;
|
||||
if (
|
||||
upstream.ok &&
|
||||
openSkySourceIsStale(sourceEpochMs, now) &&
|
||||
(await serveAdsbLolPointFallback(
|
||||
req,
|
||||
res,
|
||||
requestedMode,
|
||||
'opensky_snapshot_stale_regional_fallback',
|
||||
))
|
||||
) {
|
||||
// Keep the last global snapshot available as a fail-soft cache,
|
||||
// but do not label or render it as a fresh live result.
|
||||
_openskyCacheBody = body;
|
||||
_openskyCacheStatus = upstream.status;
|
||||
_openskyCacheTime = now;
|
||||
_openskyCacheSourceEpochMs = sourceEpochMs;
|
||||
_openskyCacheMeta = { requestedMode, usedMode, reason };
|
||||
return;
|
||||
}
|
||||
if (upstream.status === 429) {
|
||||
reason = 'rate_limited';
|
||||
// Credit governor: honor OpenSky's retry-after (bounded 30 s … 30 min;
|
||||
// 2 min when the header is absent) — no upstream attempts until then.
|
||||
const retryAfterSec = Number(
|
||||
upstream.headers.get('x-rate-limit-retry-after-seconds'),
|
||||
);
|
||||
const cooldownMs = Math.min(
|
||||
Math.max(
|
||||
Number.isFinite(retryAfterSec) ? retryAfterSec * 1000 : 120_000,
|
||||
30_000,
|
||||
),
|
||||
30 * 60_000,
|
||||
);
|
||||
_openskyCooldownUntil = now + cooldownMs;
|
||||
// Serve the last-good body instead of the 429 when we have one —
|
||||
// the layer keeps rendering (STALE-cued) instead of dying.
|
||||
if (_openskyCacheBody && _openskyCacheStatus === 200) {
|
||||
res.writeHead(
|
||||
200,
|
||||
buildOpenSkyHeaders({
|
||||
cacheStatus: 'STALE',
|
||||
requestedMode,
|
||||
usedMode,
|
||||
reason: 'rate_limited_serving_stale',
|
||||
staleSeconds: (now - _openskyCacheTime) / 1000,
|
||||
retryAfterSeconds: cooldownMs / 1000,
|
||||
}),
|
||||
);
|
||||
res.end(_openskyCacheBody);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (!upstream.ok && !_openskyCacheBody) {
|
||||
const servedFallback = await serveAdsbLolPointFallback(
|
||||
req,
|
||||
res,
|
||||
requestedMode,
|
||||
`opensky_http_${upstream.status}_regional_fallback`,
|
||||
);
|
||||
if (servedFallback) return;
|
||||
}
|
||||
|
||||
if (upstream.status === 401 || upstream.status === 403) {
|
||||
if (requestedMode === 'basic' && !hasBasicCreds) {
|
||||
body = JSON.stringify({
|
||||
error:
|
||||
'OpenSky auth missing. Basic mode requires OPENSKY_USERNAME and OPENSKY_PASSWORD.',
|
||||
});
|
||||
reason = 'missing_basic_creds';
|
||||
} else if (requestedMode === 'oauth' && usedMode !== 'oauth') {
|
||||
body = JSON.stringify({
|
||||
error:
|
||||
'OpenSky auth invalid. OAuth mode requires valid OPENSKY_CLIENT_ID and OPENSKY_CLIENT_SECRET.',
|
||||
});
|
||||
reason = 'oauth_invalid_or_missing';
|
||||
} else if (usedMode === 'basic') {
|
||||
body = JSON.stringify({
|
||||
error: 'OpenSky auth invalid. Username/password were rejected.',
|
||||
});
|
||||
reason = 'basic_invalid_credentials';
|
||||
} else if (usedMode === 'oauth') {
|
||||
body = JSON.stringify({
|
||||
error:
|
||||
'OpenSky auth invalid. OAuth client credentials were rejected.',
|
||||
});
|
||||
reason = 'oauth_invalid_credentials';
|
||||
} else if (requestedMode === 'auto' && !hasBasicCreds) {
|
||||
body = JSON.stringify({
|
||||
error:
|
||||
'OpenSky auth missing. Provide basic credentials or valid OAuth client credentials.',
|
||||
});
|
||||
reason = 'missing_oauth_and_basic_creds';
|
||||
} else {
|
||||
body = JSON.stringify({
|
||||
error: 'OpenSky auth required.',
|
||||
});
|
||||
reason = 'auth_required';
|
||||
}
|
||||
}
|
||||
|
||||
// Refine the reason string to reflect the actual outcome
|
||||
if (upstream.ok && reason === 'forced_anonymous') {
|
||||
reason = 'anonymous_ok';
|
||||
} else if (
|
||||
upstream.ok &&
|
||||
usedMode === 'basic' &&
|
||||
reason === 'basic_credentials'
|
||||
) {
|
||||
reason = 'basic_ok';
|
||||
} else if (
|
||||
upstream.ok &&
|
||||
usedMode === 'oauth' &&
|
||||
reason === 'oauth_token'
|
||||
) {
|
||||
reason = 'oauth_ok';
|
||||
}
|
||||
|
||||
// Only cache successful responses — error responses (401/403/429/5xx)
|
||||
// should not be served from cache on subsequent requests
|
||||
if (upstream.ok) {
|
||||
_openskyCacheBody = body;
|
||||
_openskyCacheStatus = upstream.status;
|
||||
_openskyCacheTime = now;
|
||||
_openskyCacheSourceEpochMs = sourceEpochMs;
|
||||
_openskyCacheMeta = {
|
||||
requestedMode,
|
||||
usedMode,
|
||||
reason,
|
||||
};
|
||||
// Credit governor: adapt the cache TTL to the remaining daily
|
||||
// budget so a continuously-open app stretches its polls instead of
|
||||
// exhausting the quota mid-day. Success also clears any cooldown.
|
||||
const remaining = Number(
|
||||
upstream.headers.get('x-rate-limit-remaining'),
|
||||
);
|
||||
_openskyTtlMs = openskyAdaptiveTtlMs(remaining);
|
||||
_openskyCooldownUntil = 0;
|
||||
}
|
||||
|
||||
res.writeHead(
|
||||
upstream.status,
|
||||
buildOpenSkyHeaders({
|
||||
cacheStatus: 'MISS',
|
||||
requestedMode,
|
||||
usedMode,
|
||||
reason,
|
||||
}),
|
||||
);
|
||||
res.end(body);
|
||||
} catch (e) {
|
||||
console.error('[OpenSky Proxy]', e.message);
|
||||
if (_openskyCacheBody) {
|
||||
const cachedMeta = _openskyCacheMeta || {
|
||||
requestedMode: normalizeOpenSkyAuthMode(
|
||||
process.env.OPENSKY_AUTH_MODE,
|
||||
),
|
||||
usedMode: 'unknown',
|
||||
reason: 'cached_stale',
|
||||
};
|
||||
res.writeHead(
|
||||
_openskyCacheStatus || 200,
|
||||
buildOpenSkyHeaders({
|
||||
cacheStatus: 'STALE',
|
||||
requestedMode:
|
||||
cachedMeta.requestedMode || OPENSKY_AUTH_MODE_DEFAULT,
|
||||
usedMode: cachedMeta.usedMode || 'unknown',
|
||||
reason: cachedMeta.reason || 'cached_stale',
|
||||
}),
|
||||
);
|
||||
res.end(_openskyCacheBody);
|
||||
return;
|
||||
}
|
||||
const requestedMode = normalizeOpenSkyAuthMode(
|
||||
process.env.OPENSKY_AUTH_MODE,
|
||||
);
|
||||
if (
|
||||
await serveAdsbLolPointFallback(
|
||||
req,
|
||||
res,
|
||||
requestedMode,
|
||||
'opensky_proxy_error_regional_fallback',
|
||||
)
|
||||
)
|
||||
return;
|
||||
res.writeHead(
|
||||
502,
|
||||
buildOpenSkyHeaders({
|
||||
cacheStatus: 'MISS',
|
||||
requestedMode,
|
||||
usedMode: 'error',
|
||||
reason: 'proxy_error',
|
||||
}),
|
||||
);
|
||||
res.end(JSON.stringify({ error: 'OpenSky proxy error' }));
|
||||
}
|
||||
});
|
||||
};
|
||||
return {
|
||||
name: 'opensky-proxy',
|
||||
configureServer: installMiddleware,
|
||||
configurePreviewServer: installMiddleware,
|
||||
};
|
||||
}
|
||||
Reference in new issue
Block a user