feat: store rdp, vnc and telnet logins in a generic per-protocol table

plugins/remote-desktop/src/backend/host-settings.ts

@@ -141,6 +141,42 @@ export function normalizeImportedHost(
   return Object.keys(out).length > 0 ? out : null;
 }
 
+/**
+ * Registered as "remote-desktop.hostPayloadLegacy": each protocol's login
+ * in the flat 2.8 shape (rdpUser, rdpDomain, vncAuthType and so on), for
+ * Termix-Mobile until it reads protocolAuth. Built from the payload's own
+ * protocolAuth, which core already reduced for a shared recipient.
+ */
+export function hostPayloadLegacy(
+  _values: Record<string, unknown>,
+  host: Record<string, unknown>,
+): Record<string, unknown> | null {
+  const logins = asObject(host.protocolAuth);
+  if (!logins) return null;
+  const out: Record<string, unknown> = {};
+  for (const protocol of ["rdp", "vnc", "telnet"] as const) {
+    const login = asObject(logins[protocol]);
+    if (!login) continue;
+    out[`${protocol}AuthType`] = login.authType;
+    if (login.credentialId !== undefined) {
+      out[`${protocol}CredentialId`] = login.credentialId;
+    }
+    if (typeof login.username === "string" && login.username) {
+      out[`${protocol}User`] = login.username;
+    }
+    if (typeof login.hasPassword === "boolean") {
+      const name = protocol.charAt(0).toUpperCase() + protocol.slice(1);
+      out[`has${name}Password`] = login.hasPassword;
+    }
+    const domain = asObject(login.fields)?.domain;
+    if (protocol === "rdp" && typeof domain === "string" && domain) {
+      out.rdpDomain = domain;
+      out.domain = domain;
+    }
+  }
+  return Object.keys(out).length > 0 ? out : null;
+}
+
 /** User setting key to the guacd parameter it sets. */
 const USER_DEFAULT_PARAMS: Record<string, string> = {
   colorDepth: "color-depth",

plugins/remote-desktop/src/backend/index.ts

@@ -9,6 +9,7 @@ import { resolveGuacdOptions } from "./guacd-config.js";
 import { registerRoutes } from "./routes.js";
 import { createLiveSessions } from "./live-sessions.js";
 import {
+  hostPayloadLegacy,
   normalizeImportedHost,
   PORT_KEY,
   readHostSettings,
@@ -107,6 +108,7 @@ export async function activate(ctx: PluginContext) {
     "remote-desktop.hostImportNormalizer",
     normalizeImportedHost,
   );
+  ctx.registry.provide("remote-desktop.hostPayloadLegacy", hostPayloadLegacy);
 
   // Core's status dot pings these hosts on the protocol's own port.
   for (const protocol of ["rdp", "vnc", "telnet"] as const) {

plugins/remote-desktop/src/backend/routes.ts

@@ -337,7 +337,7 @@ export function registerRoutes(router: Router, deps: RouteDeps): void {
       const domain = resolveRdpDomain(
         target.auth.authType,
         body.promptedDomain,
-        target.auth.domain,
+        target.auth.fields.domain ?? "",
       );
 
       let hostname = target.host.ip;