add download

Author: devsnek

api/download.js

@@ -0,0 +1,33 @@
+'use strict';
+
+const fetch = require('node-fetch');
+
+const authorization = `Bearer ${process.env.GH_TOKEN}`;
+
+module.exports = (req, res) => {
+  if (req.method === 'OPTIONS') {
+    res.writeHead(200, { 'Allow': 'OPTIONS, GET' });
+    res.end();
+    return res;
+  }
+  if (req.method !== 'GET') {
+    return res.status(405).send('405');
+  }
+
+  delete req.headers.host;
+  return fetch('https://npm.pkg.github.com/@engine262/engine262', {
+    headers: { ...req.headers, authorization },
+  })
+    .then((r) => r.json())
+    .then((r) => {
+      const link = r.versions[r['dist-tags'].latest].dist.tarball;
+      return fetch(link, {
+        redirect: 'manual',
+        headers: { authorization },
+      }).then((r2) => {
+        res.status(302);
+        res.setHeader('location', r2.headers.get('location'));
+        return res.end();
+      });
+    });
+};

now.json

@@ -17,6 +17,10 @@
     {
       "src": "/engine262/engine262.js.map",
       "dest": "/api/bridge.js"
+    },
+    {
+      "src": "/download",
+      "dest": "/api/download.js"
     }
   ],
   "env": {