allow configuring CORS origins

server/index.js

@@ -73,6 +73,7 @@ const CA_BUNDLE = [...tls.rootCertificates, EXTRA_CA];
 
 const PORT = process.env.PORT || 3001;
 const ILAN_BASE = 'https://www.ilan.gov.tr';
+const CORS_ORIGINS = String(process.env.CORS_ORIGINS || '').split(',').map(value => value.trim()).filter(Boolean);
 
 function validateHealthPortfolio(value) {
   if (!value || typeof value !== 'object' || Array.isArray(value)) throw new Error('Firma profili geçersiz.');
@@ -621,13 +622,16 @@ async function getDetail(ilanId) {
 // HTTP sunucu
 // ---------------------------------------------------------------------------
 function json(res, code, body) {
-  res.writeHead(code, {
+  const headers = {
     'Content-Type': 'application/json; charset=utf-8',
-    'Access-Control-Allow-Origin': '*',
     'Cache-Control': 'no-store',
     'X-Content-Type-Options': 'nosniff',
     'Referrer-Policy': 'no-referrer',
-  });
+  };
+  const origin = res.__ihaleistCorsOrigin;
+  if (origin) headers['Access-Control-Allow-Origin'] = origin;
+  else if (!CORS_ORIGINS.length) headers['Access-Control-Allow-Origin'] = '*';
+  res.writeHead(code, headers);
   res.end(JSON.stringify(body));
 }
 
@@ -732,13 +736,17 @@ const aiJobRunner = startAiJobRunner(async (job,{signal}) => {
 
 const server = http.createServer(async (req, res) => {
   const url = new URL(req.url, `http://localhost:${PORT}`);
+  const requestOrigin = String(req.headers.origin || '').trim();
+  res.__ihaleistCorsOrigin = CORS_ORIGINS.length && CORS_ORIGINS.includes(requestOrigin) ? requestOrigin : null;
   if (req.method === 'OPTIONS') {
-    res.writeHead(204, {
-      'Access-Control-Allow-Origin': '*',
+    const headers = {
       'Access-Control-Allow-Methods': 'GET,POST,PUT,PATCH,DELETE,OPTIONS',
       'Access-Control-Allow-Headers': 'Authorization,Content-Type',
       'Access-Control-Max-Age': '600',
-    });
+    };
+    if (res.__ihaleistCorsOrigin) headers['Access-Control-Allow-Origin'] = res.__ihaleistCorsOrigin;
+    else if (!CORS_ORIGINS.length) headers['Access-Control-Allow-Origin'] = '*';
+    res.writeHead(204, headers);
     res.end();
     return;
   }