45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
import { NextResponse } from 'next/server'
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import type { NextRequest } from 'next/server'
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async function hmacSha256(secret: string, message: string): Promise<string> {
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const enc = new TextEncoder()
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const key = await crypto.subtle.importKey(
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'raw', enc.encode(secret), { name: 'HMAC', hash: 'SHA-256' }, false, ['sign']
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)
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const sig = await crypto.subtle.sign('HMAC', key, enc.encode(message))
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return Array.from(new Uint8Array(sig)).map(b => b.toString(16).padStart(2, '0')).join('')
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}
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export async function middleware(request: NextRequest) {
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const { pathname } = request.nextUrl
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if (
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pathname.startsWith('/api/auth') ||
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pathname.startsWith('/_next') ||
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pathname.startsWith('/favicon') ||
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pathname === '/manifest.json'
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) {
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return NextResponse.next()
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}
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const token = request.cookies.get('auth_token')?.value
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const pin = process.env.APP_PIN || '1234'
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const secret = process.env.APP_SECRET || 'smart-home-default-secret-change-me'
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const expectedToken = await hmacSha256(secret, pin)
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if (token !== expectedToken) {
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if (pathname.startsWith('/api/')) {
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return NextResponse.json({ error: 'unauthorized' }, { status: 401 })
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}
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const url = request.nextUrl.clone()
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url.searchParams.set('locked', '1')
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return NextResponse.rewrite(url)
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}
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return NextResponse.next()
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}
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export const config = {
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matcher: ['/((?!_next/static|_next/image|favicon.ico|manifest.json).*)'],
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}
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