Module.AdminModules/Server/Startup/ConfigureDataProtectionTokenProviderOptions.cs

using Microsoft.AspNetCore.Identity;
using Microsoft.Extensions.Options;
using System;
using System.Linq;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using SZUAbsolventenverein.Module.AdminModules.Models;
using SZUAbsolventenverein.Module.AdminModules.Repository;

namespace SZUAbsolventenverein.Module.AdminModules.Server.Startup
{
    public class ConfigureDataProtectionTokenProviderOptions : IConfigureOptions<DataProtectionTokenProviderOptions>
    {
        private readonly IServiceProvider _serviceProvider;

        public ConfigureDataProtectionTokenProviderOptions(IServiceProvider serviceProvider)
        {
            _serviceProvider = serviceProvider;
            Console.WriteLine("Instatiating DPTPO Configurator");
        }

        public void Configure(DataProtectionTokenProviderOptions options)
        {
            Console.WriteLine("Configuring DPTPO");
            // default fallback
            options.TokenLifespan = TimeSpan.FromHours(2);
    
            try
            {
                using var scope = _serviceProvider.CreateScope();
                var _dbContextFactory = scope.ServiceProvider.GetRequiredService<IDbContextFactory<AdminModulesContext>>();
                var _ctx = _dbContextFactory.CreateDbContext();
                AdminSetting adminSetting = _ctx.AdminSettings.First();
                
                Console.WriteLine("Setting DPTPO: " + adminSetting);
                if (adminSetting != null)
                {
                    Console.WriteLine("Setting DPTPO: " + adminSetting.TokenLifetime);
                    options.TokenLifespan = TimeSpan.FromDays(adminSetting.TokenLifetime);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("DB Not ready, using default DPTPO: " + ex);
                // DB not ready / read failed — keep default
                // Unable to get Create DB Context because Oqtane's Database Setup is incomplete.
            }
        }
    }
}