[PATCH proxmox-backup v5 23/27] login: handle OAuth2 callback

[Arthur Bied-Charreton <a.bied-charreton@proxmox.com>]

The callback handler detects whether a login was triggered as the result
of an OAuth2 redirect and handles it accordingly by sending the
authorization code to the parent window. No-op on normal logins.

Explicitly check the return value of handleCallback to prevent
triggering the OpenID login logic.

Signed-off-by: Arthur Bied-Charreton <a.bied-charreton@proxmox.com>
---
 www/Application.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/www/Application.js b/www/Application.js
index e82ccdd0..fa5d4037 100644
--- a/www/Application.js
+++ b/www/Application.js
@@ -57,10 +57,12 @@ Ext.define('PBS.Application', {
         var provider = new Ext.state.LocalStorageProvider({ prefix: 'ext-pbs-' });
         Ext.state.Manager.setProvider(provider);
 
+        let isOAuth2Callback = Proxmox.OAuth2.handleCallback(new URLSearchParams(window.location.search));
+
         let isOpenIDLogin = Proxmox.Utils.getOpenIDRedirectionAuthorization() !== undefined;
         let alreadyLoggedIn = Proxmox.Utils.authOK();
 
-        if (isOpenIDLogin || !alreadyLoggedIn) {
+        if (!isOAuth2Callback && (isOpenIDLogin || !alreadyLoggedIn)) {
             me.changeView('loginview', true); // show login window if not loggedin
         } else {
             me.changeView('mainview', true);
-- 
2.47.3