Feature: UniFi Drive (UNAS) service widget (#6461)

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src/widgets/unifi_drive/proxy.js

@@ -0,0 +1,36 @@
+import getServiceWidget from "utils/config/service-helpers";
+import createUnifiProxyHandler from "utils/proxy/handlers/unifi";
+import { httpProxy } from "utils/proxy/http";
+
+const drivePrefix = "/proxy/drive";
+
+async function getWidget(req, logger) {
+  const { group, service, index } = req.query;
+  if (!group || !service) return null;
+
+  const widget = await getServiceWidget(group, service, index);
+  if (!widget) {
+    logger.debug("Invalid or missing widget for service '%s' in group '%s'", service, group);
+    return null;
+  }
+  return widget;
+}
+
+async function resolveRequestContext({ cachedPrefix, widget }) {
+  if (cachedPrefix !== null) {
+    return { prefix: cachedPrefix };
+  }
+
+  const [, , , responseHeaders] = await httpProxy(widget.url);
+
+  return {
+    prefix: drivePrefix,
+    csrfToken: responseHeaders?.["x-csrf-token"],
+  };
+}
+
+export default createUnifiProxyHandler({
+  proxyName: "unifiDriveProxyHandler",
+  resolveWidget: getWidget,
+  resolveRequestContext,
+});