Custom theme is not applied

[mcodato]

Environment:

• OS name: Red Hat Enterprise Linux
• OS version: 8.10
• Architecture: x86_64
• ntopng version/revision:

  Version:    6.0.240703 [Enterprise/Professional build]
  GIT rev:    6.0-stable:1e320c2fe082d0a7776993b41aad55d4255aa1cc:20240703
  Pro rev:    r6175

What happened: The custom theme file is not applied.

How did you reproduce it?

1. Create the file /usr/share/ntopng/httpdocs/css/custom-theme.css
2. Refresh the ntopng UI with the dev tools opened
3. There are no requests that load the custom theme file

Debug Information: The problem seems to be here https://github.com/ntop/ntopng/blob/dev/scripts/lua/modules/page_utils.lua#L377 the custom theme is loaded from /usr/share/ntopng/httpdocs/css/custom-theme.css but the if checks if the file /usr/share/ntopng/css/custom-theme.css exists. Essentially, the two paths differ in the httpdocs folder.

[MatteoBiscosi]

Thanks for the fix @mcodato , your pr is correct, in case the issue persists let me know.

[mcodato]

Thank you @MatteoBiscosi, will the fix be backported to version 6.0?

[cardigliano]

@mcodato a new stable will be released in a few days and will contain the fix