add Job Tasks to enable the execution of adhoc asynchronous site-based workloads

Oqtane.Server/Infrastructure/Tasks/ImportUsersTask.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using Oqtane.Managers;
+using Oqtane.Models;
+using Oqtane.Repository;
+
+namespace Oqtane.Infrastructure
+{
+    public class ImportUsersTask : JobTaskBase
+    {
+        public override async Task<string> ExecuteTaskAsync(IServiceProvider provider, Site site, string parameters)
+        {
+            string log = "";
+
+            if (!string.IsNullOrEmpty(parameters) && parameters.Contains(":"))
+            {
+                var fileId = int.Parse(parameters.Split(':')[0]);
+                var notify = bool.Parse(parameters.Split(':')[1]);
+
+                var fileRepository = provider.GetRequiredService<IFileRepository>();
+                var userManager = provider.GetRequiredService<IUserManager>();
+
+                var file = fileRepository.GetFile(fileId);
+                if (file != null)
+                {
+                    var filePath = fileRepository.GetFilePath(file);
+                    log += $"Importing Users From {filePath}<br />";
+                    var result = await userManager.ImportUsers(site.SiteId, filePath, notify);
+                    if (result["Success"] == "True")
+                    {
+                        log += $"{result["Users"]} Users Imported<br />";
+                    }
+                    else
+                    {
+                        log += $"User Import Failed<br />";
+                    }
+                }
+                else
+                {
+                    log += $"Import Users FileId {fileId} Does Not Exist<br />";
+                }
+            }
+
+            return log;
+        }
+    }
+}