[PATCH] fix #7337: Keep track of deep link on OpenID login

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

Previously, when opening a deep link without being logged into PBS, the
hash was getting lost, redirecting the user to #pbsDashboard instead of
/#<deeplink>.

Store `window.location.hash` in sessionStorage (per-tab storage) before
redirecting to the login URL, and add it to the history after successful
login to direct the user to the deeplink they opened.

`#pbsDashboard` remains the default redirect if no deeplink is stored.

Signed-off-by: Arthur Bied-Charreton <a.bied-charreton@proxmox.com>
---
 www/LoginView.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/www/LoginView.js b/www/LoginView.js
index fd9594f6..b72e4223 100644
--- a/www/LoginView.js
+++ b/www/LoginView.js
@@ -48,6 +48,7 @@ Ext.define('PBS.LoginView', {
 
             if (this.getViewModel().data.openid === true) {
                 const redirectURL = location.origin;
+                sessionStorage.setItem('openid-deeplink', location.hash);
                 try {
                     let resp = await Proxmox.Async.api2({
                         url: '/api2/extjs/access/openid/auth-url',
@@ -217,7 +218,13 @@ Ext.define('PBS.LoginView', {
                                 let creds = response.result.data;
                                 PBS.Utils.updateLoginData(creds);
                                 PBS.app.changeView('mainview');
-                                history.replaceState(null, '', `${redirectURL}#pbsDashboard`);
+                                let deeplink = sessionStorage.getItem('openid-deeplink');
+                                if (deeplink) {
+                                    sessionStorage.removeItem('openid-deeplink');
+                                    history.replaceState(null, '', `${redirectURL}${deeplink}`);
+                                } else {
+                                    history.replaceState(null, '', `${redirectURL}#pbsDashboard`);
+                                }
                             },
                         });
                     }
-- 
2.47.3