librenms-librenms/app/Http/Middleware/VerifyUserEnabled.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class VerifyUserEnabled
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure(\Illuminate\Http\Request): (\Illuminate\Http\Response|\Illuminate\Http\RedirectResponse)  $next
     * @return \Illuminate\Http\Response|\Illuminate\Http\RedirectResponse
     */
    public function handle(Request $request, Closure $next)
    {
        if (Auth::check() && ! Auth::user()->enabled) {
            Auth::logout();
            $request->session()->invalidate();
            $request->session()->regenerateToken();

            return redirect()->route('login')->withErrors(['msg' => __('auth.disabled')]);
        }

        return $next($request);
    }
}