Files
lt-auth-proxy/src/ltProxyAuth.ts
Max P. 4326a2d92c fix(auth): validate API key from POST body and handle content type
- Switch API key validation to use POST body parameters
- Add support for `application/x-www-form-urlencoded` content type
- Store parsed body in context state for further use
- Reject unsupported content types with 415 status
2025-05-11 10:59:39 +02:00

30 lines
1005 B
TypeScript

import { Middleware } from 'http-kernel/Types/mod.ts';
import { Env } from './env.ts';
/**
* Middleware that checks for a valid API key via form param.
* Also stores the body in ctx.state.body for later use.
*/
export const authMiddleware: Middleware = async (ctx, next) => {
const contentType = ctx.req.headers.get('content-type') || '';
if (contentType.includes('application/x-www-form-urlencoded')) {
const bodyBuffer = await ctx.req.arrayBuffer();
ctx.state.body = new Uint8Array(bodyBuffer);
const text = new TextDecoder().decode(ctx.state.body as Uint8Array);
const params = new URLSearchParams(text);
const key = params.get('apiKey');
if (!key || !Env.apiKeys.includes(key)) {
return new Response('Forbidden – Invalid API key', { status: 403 });
}
} else {
return new Response('Unsupported content type', { status: 415 });
}
return await next();
};
export { authMiddleware as ltProxyAuth };