SparksCloudFront

SparksAppSetting.cs

namespace SparksCloudFront
{
    public class SparksAppSetting
    {
        public CloudFront CloudFront { get; set; }
    }

    public class CloudFront
    {
        public string Profile { get; set; }
        public string DistributionId { get; set; }
        public string AccessKeyId { get; set; }
        public string AccessKey { get; set; }
    }
}

SparksEventSubscriber.cs

using Amazon;
using Amazon.CloudFront;
using Amazon.CloudFront.Model;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Telerik.Sitefinity.Abstractions;
using Telerik.Sitefinity.Data;
using Telerik.Sitefinity.Data.Events;
using Telerik.Sitefinity.Modules.Pages;
using Telerik.Sitefinity.Pages.Model;
using Telerik.Sitefinity.Publishing;
using Telerik.Sitefinity.Services;

namespace SparksCloudFront
{
    public class SparksEventSubscriber
    {
        public static void Start()
        {
            Bootstrapper.Bootstrapped += Bootstrapper_Bootstrapped;
        }

        private static void Bootstrapper_Bootstrapped(object sender, EventArgs e)
        {
            EventHub.Subscribe<IDataEvent>(evt => DataEventHandler(evt));
        }

        // https://community.progress.com/s/article/How-to-catch-the-Publish-Unpublish-and-Save-as-draft-events-using-API
        private static void DataEventHandler(IDataEvent eventInfo)
        {
            var action = eventInfo.Action;
            var contentType = eventInfo.ItemType;

            if (contentType != typeof(PageNode))
            {
                return;
            }

            if (action == "Updated" && eventInfo.GetPropertyValue<bool>("HasPageDataChanged") == true && eventInfo.GetPropertyValue<string>("ApprovalWorkflowState") == "Published")
            {
                var urls = new List<string>();
                var itemId = eventInfo.ItemId;
                var providerName = eventInfo.ProviderName;
                var manager = ManagerBase.GetMappedManager(contentType, providerName);
                var item = (PageNode)manager.GetItemOrDefault(contentType, itemId);
                urls.Add(item.GetUrl().Replace("~", ""));
                if (item.Urls.Count > 0)
                {
                    urls.AddRange(item.Urls.Select(x => x.Url.Replace("~", "")).ToList());
                }

                var homePageId = SystemManager.CurrentContext.CurrentSite.HomePageId;
                if (homePageId != null || homePageId != Guid.Empty && item.Id == homePageId)
                {
                    urls.Add("/");
                }

                ClearCloudFrontCache(urls);
            }
        }

        private static void ClearCloudFrontCache(List<string> urls)
        {
            using (var reader = new StreamReader(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin\\sparksSetting.json")))
            {
                var settings = JsonConvert.DeserializeObject<SparksAppSetting>(reader.ReadToEnd());
                var client = new AmazonCloudFrontClient(settings.CloudFront.AccessKeyId, settings.CloudFront.AccessKey, RegionEndpoint.APSoutheast1);

                var batch = new InvalidationBatch()
                {
                    CallerReference = DateTime.Now.ToString("ddMMyyyyHHmmss"),
                    Paths = new Paths() { Items = urls, Quantity = urls.Count },
                };
                var request = new CreateInvalidationRequest(settings.CloudFront.DistributionId, batch);
                client.CreateInvalidation(request);
            }
        }
    }
}