Files
immich-folio/app/api/exif/[id]/route.ts
Ralksta 10ec68f493 release: v0.12.0 (#520)
Forty-one commits since v0.11.0. See CHANGELOG.md for the full list and the upgrade notes.
2026-08-23 23:18:14 +02:00

109 lines
3.8 KiB
TypeScript

/**
* EXIF metadata API route — returns camera/lens/settings info for an asset.
* Called on-demand by the lightbox when the user clicks "Info".
*
* The :token is an encoded asset ID (not a raw UUID).
*/
import { NextRequest, NextResponse } from 'next/server';
import { immich, ImmichUnavailableError } from '@/lib/immich';
import { decodeAssetId } from '@/lib/tokens';
import { getConfig } from '@/lib/config';
import { checkRateLimit, getClientIp, retryAfterSeconds } from '@/lib/rate-limit';
import { siteLockResponse } from '@/lib/auth';
export async function GET(request: NextRequest, { params }: { params: Promise<{ id: string }> }) {
const config = getConfig();
// Which groups this site publishes. The description used to be served
// unconditionally as editorial caption, which made it the one field an
// operator could not switch off — the problem behind #506. It is a group like
// any other now.
const show = config.exif;
// ── Rate limiting ──────────────────────────────────
const ip = getClientIp(request);
const { success, resetAt } = checkRateLimit(`exif:${ip}`, config.rateLimitRpm);
if (!success) {
const retryAfter = retryAfterSeconds(resetAt);
console.warn(`[EXIF API] ⚠️ Rate limit exceeded for IP: ${ip}. Retry after ${retryAfter}s`);
return NextResponse.json(
{ error: 'Too many requests' },
{
status: 429,
headers: { 'Retry-After': String(retryAfter), 'Cache-Control': 'no-store' },
},
);
}
// The page-level gate does not cover route handlers — without this a locked
// site would still serve to anyone holding the URL.
const locked = siteLockResponse(request);
if (locked) return locked;
const { id: token } = await params;
// Decode the opaque token back to an Immich asset ID
const assetId = decodeAssetId(token);
if (!assetId) {
return NextResponse.json({ error: 'Invalid token' }, { status: 400 });
}
let asset;
try {
asset = await immich.getAssetInfo(assetId);
} catch (error) {
// Immich is down, not "this asset has no EXIF" — say so, so the lightbox
// can retry rather than caching a 404 for a photo that does have data.
if (error instanceof ImmichUnavailableError) {
console.error(`[EXIF API] Immich unavailable for ${assetId}:`, error.message);
return NextResponse.json(
{ error: 'Immich is currently unavailable' },
{ status: 503, headers: { 'Retry-After': '30', 'Cache-Control': 'no-store' } },
);
}
throw error;
}
if (!asset?.exifInfo) {
return NextResponse.json({ error: 'No EXIF data' }, { status: 404 });
}
const exif = asset.exifInfo;
const caption = show.caption ? exif.description?.trim() || undefined : undefined;
const payload = {
...(show.camera
? {
make: exif.make,
model: exif.model,
lensModel: exif.lensModel,
focalLength: exif.focalLength,
}
: {}),
...(show.settings
? {
fNumber: exif.fNumber,
exposureTime: exif.exposureTime,
iso: exif.iso,
}
: {}),
...(show.location ? { city: exif.city, country: exif.country } : {}),
...(caption ? { description: caption } : {}),
};
// Every group is switched off, or this asset carries nothing from the ones
// that are on. Say "no data" rather than answering with an empty object, which
// the lightbox would render as a blank panel.
if (Object.values(payload).every((value) => value === null || value === undefined)) {
return NextResponse.json({ error: 'No EXIF data' }, { status: 404 });
}
return NextResponse.json(payload, {
headers: {
'Cache-Control': 'private, max-age=86400, stale-while-revalidate=3600',
},
});
}