MalwareMultiScan/MalwareMultiScan.Api/Extensions/ServiceCollectionExtensions.cs

using System.Net;
using EasyNetQ;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.HttpOverrides;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using MongoDB.Driver;

namespace MalwareMultiScan.Api.Extensions
{
    internal static class ServiceCollectionExtensions
    {
        public static void AddMongoDb(this IServiceCollection services, IConfiguration configuration)
        {
            services.AddSingleton(
                serviceProvider =>
                {
                    var db = new MongoClient(configuration.GetConnectionString("Mongo"));

                    return db.GetDatabase(
                        configuration.GetValue<string>("DatabaseName"));
                });
        }

        public static void AddRabbitMq(this IServiceCollection services, IConfiguration configuration)
        {
            services.AddSingleton(x =>
                RabbitHutch.CreateBus(configuration.GetConnectionString("RabbitMQ")));
        }

        public static void AddDockerForwardedHeadersOptions(this IServiceCollection services)
        {
            services.Configure<ForwardedHeadersOptions>(options =>
            {
                options.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
                options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("::ffff:10.0.0.0"), 104));
                options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("::ffff:192.168.0.0"), 112));
                options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("::ffff:172.16.0.0"), 108));
            });
        }
    }
}