Migrating to uWS

back/src/Server/server/utils.ts

@@ -0,0 +1,52 @@
+import { HttpResponse } from 'uWebSockets.js';
+import { ReadStream } from 'fs';
+
+function writeHeaders(
+  res: HttpResponse,
+  headers: { [name: string]: string } | string,
+  other?: string
+) {
+  if (typeof headers === 'string') {
+    res.writeHeader(headers, other.toString());
+  } else {
+    for (const n in headers) {
+      res.writeHeader(n, headers[n].toString());
+    }
+  }
+}
+
+function extend(who: object, from: object, overwrite = true) {
+  const ownProps = Object.getOwnPropertyNames(Object.getPrototypeOf(from)).concat(
+    Object.keys(from)
+  );
+  ownProps.forEach(prop => {
+    if (prop === 'constructor' || from[prop] === undefined) return;
+    if (who[prop] && overwrite) {
+      who[`_${prop}`] = who[prop];
+    }
+    if (typeof from[prop] === 'function') who[prop] = from[prop].bind(who);
+    else who[prop] = from[prop];
+  });
+}
+
+function stob(stream: ReadStream): Promise<Buffer> {
+  return new Promise(resolve => {
+    const buffers = [];
+    stream.on('data', buffers.push.bind(buffers));
+
+    stream.on('end', () => {
+      switch (buffers.length) {
+        case 0:
+          resolve(Buffer.allocUnsafe(0));
+          break;
+        case 1:
+          resolve(buffers[0]);
+          break;
+        default:
+          resolve(Buffer.concat(buffers));
+      }
+    });
+  });
+}
+
+export { writeHeaders, extend, stob };