10ec68f493
Forty-one commits since v0.11.0. See CHANGELOG.md for the full list and the upgrade notes.
121 lines
3.1 KiB
TypeScript
121 lines
3.1 KiB
TypeScript
/**
|
||
* Dynamic OG image generator — renders social share previews.
|
||
* Uses next/og (ImageResponse) to create 1200×630 cards.
|
||
* Reads accent color from theme config.
|
||
*
|
||
* GET /api/og?title=Album+Name&subtitle=12+photos
|
||
*/
|
||
|
||
import { ImageResponse } from 'next/og';
|
||
import { NextRequest, NextResponse } from 'next/server';
|
||
import { getConfig } from '@/lib/config';
|
||
import { checkRateLimit, getClientIp, retryAfterSeconds } from '@/lib/rate-limit';
|
||
import { siteLockResponse } from '@/lib/auth';
|
||
|
||
/**
|
||
* OG image rendering runs satori + resvg per request and each unique ?title
|
||
* misses every cache tier, so this is far more expensive than an image proxy
|
||
* hit. It must not inherit RATE_LIMIT_RPM (default 1500) — that turns the
|
||
* endpoint into an unauthenticated CPU amplifier.
|
||
*/
|
||
const OG_RPM = 30;
|
||
|
||
export async function GET(request: NextRequest) {
|
||
const ip = getClientIp(request);
|
||
const { theme } = getConfig();
|
||
|
||
const { success, resetAt } = checkRateLimit(`og:${ip}`, OG_RPM);
|
||
if (!success) {
|
||
return new NextResponse('Too many requests', {
|
||
status: 429,
|
||
headers: {
|
||
'Retry-After': String(retryAfterSeconds(resetAt)),
|
||
'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 { searchParams } = request.nextUrl;
|
||
const title = (searchParams.get('title') || 'Gallery').slice(0, 200);
|
||
const subtitle = (searchParams.get('subtitle') || '').slice(0, 100);
|
||
|
||
return new ImageResponse(
|
||
<div
|
||
style={{
|
||
width: '100%',
|
||
height: '100%',
|
||
display: 'flex',
|
||
flexDirection: 'column',
|
||
alignItems: 'center',
|
||
justifyContent: 'center',
|
||
backgroundColor: '#0a0a0a',
|
||
fontFamily: 'system-ui, -apple-system, sans-serif',
|
||
padding: '60px',
|
||
}}
|
||
>
|
||
{/* Decorative top line */}
|
||
<div
|
||
style={{
|
||
width: '60px',
|
||
height: '2px',
|
||
backgroundColor: theme.accent,
|
||
marginBottom: '40px',
|
||
}}
|
||
/>
|
||
|
||
{/* Title */}
|
||
<div
|
||
style={{
|
||
fontSize: '64px',
|
||
fontWeight: 600,
|
||
color: '#f0f0f0',
|
||
letterSpacing: '0.02em',
|
||
textAlign: 'center',
|
||
lineHeight: 1.2,
|
||
maxWidth: '900px',
|
||
}}
|
||
>
|
||
{title}
|
||
</div>
|
||
|
||
{/* Subtitle */}
|
||
{subtitle && (
|
||
<div
|
||
style={{
|
||
fontSize: '24px',
|
||
color: '#999999',
|
||
fontWeight: 300,
|
||
marginTop: '16px',
|
||
letterSpacing: '0.08em',
|
||
textTransform: 'lowercase',
|
||
}}
|
||
>
|
||
{subtitle}
|
||
</div>
|
||
)}
|
||
|
||
{/* Bottom decorative line */}
|
||
<div
|
||
style={{
|
||
width: '60px',
|
||
height: '2px',
|
||
backgroundColor: theme.accent,
|
||
marginTop: '40px',
|
||
}}
|
||
/>
|
||
</div>,
|
||
{
|
||
width: 1200,
|
||
height: 630,
|
||
headers: {
|
||
'Cache-Control': 'public, max-age=86400, s-maxage=86400',
|
||
},
|
||
},
|
||
);
|
||
}
|