fix(xen-api): set hostnameRaw before creating transport

Fixes zammad#17423

Introduced by 158a8e14a

Fix XML-RPC transport.

CHANGELOG.unreleased.md

@@ -12,6 +12,7 @@
 > Users must be able to say: “I had this issue, happy to know it's fixed”
 
 - [User] _Forget all connection tokens_ button should not delete other users' tokens, even when current user is an administrator (PR [#7014](https://github.com/vatesfr/xen-orchestra/pull/7014))
+- [Settings/Servers] Fix connection to old XenServer hosts using XML-RPC protocol (broken in XO 5.85.0)
 
 ### Packages to release
 
@@ -29,6 +30,7 @@
 
 <!--packages-start-->
 
+- xen-api patch
 - xo-server minor
 - xo-web patch
 

packages/xen-api/src/index.js

@@ -945,6 +945,9 @@ export class Xapi extends EventEmitter {
   }
 
   _setUrl(url) {
+    const { hostname } = url
+    url.hostnameRaw = hostname[0] === '[' ? hostname.slice(1, -1) : hostname
+
     this._humanId = `${this._auth.user ?? 'unknown'}@${url.hostname}`
     this._transport = this._createTransport({
       secureOptions: {
@@ -954,8 +957,6 @@ export class Xapi extends EventEmitter {
       url,
       agent: this.httpAgent,
     })
-    const { hostname } = url
-    url.hostnameRaw = hostname[0] === '[' ? hostname.slice(1, -1) : hostname
     this._url = url
   }