From 7f70d6c6ff3d9a21fd33fd1097dd5b3dd8a16d4a Mon Sep 17 00:00:00 2001
From: freddy2659 <50930342+freddy2659@users.noreply.github.com>
Date: Tue, 5 Dec 2023 15:34:56 -0800
Subject: [PATCH] [WebUI] Fix progress divide by 0 error with empty dir

If a dir exists with no contents then the following error occurred:

```
Traceback (most recent call last):
  ...
  File "/usr/lib/python3.10/site-packages/deluge/ui/web/json_api.py", line 608, in _on_got_files
    dirinfo['progress'] = sum(progresses) / dirinfo['size'] * 100
builtins.ZeroDivisionError: float division by zero
```

Closes: https://github.com/deluge-torrent/deluge/pull/439
---
 deluge/ui/web/json_api.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/deluge/ui/web/json_api.py b/deluge/ui/web/json_api.py
index 3f256140e..ea8105db4 100644
--- a/deluge/ui/web/json_api.py
+++ b/deluge/ui/web/json_api.py
@@ -600,7 +600,10 @@ class WebApi(JSONComponent):
 
                 progresses = dirinfo.setdefault('progresses', [])
                 progresses.append(torrent_file['size'] * torrent_file['progress'] / 100)
-                dirinfo['progress'] = sum(progresses) / dirinfo['size'] * 100
+                if dirinfo['size'] > 0:
+                    dirinfo['progress'] = sum(progresses) / dirinfo['size'] * 100
+                else:
+                    dirinfo['progress'] = 100
                 dirinfo['path'] = dirname
                 dirname = os.path.dirname(dirname)