Make CORS origins configurable

Author: ethanhann

IntegrationEngine/Api/Controllers/CronTriggerController.cs

@@ -5,6 +5,7 @@
 using IntegrationEngine.Core.Storage;
 using IntegrationEngine.Model;
 using IntegrationEngine.Scheduler;
+using System.Web.Http.Cors;
 
 namespace IntegrationEngine.Api.Controllers
 {

IntegrationEngine/Api/Startup.cs

@@ -2,7 +2,9 @@
 using Owin;
 using System.Linq;
 using System.Web.Http;
+using System.Web.Http.Cors;
 using Microsoft.Practices.Unity;
+using IntegrationEngine.Configuration;
 
 [assembly: OwinStartup(typeof(IntegrationEngine.Api.Startup))]
 
@@ -13,8 +15,11 @@ public class Startup
         public void Configuration(IAppBuilder appBuilder)
         {
             var  config = new HttpConfiguration();
-            config.DependencyResolver = new ContainerResolver(ContainerSingleton.GetContainer());
-            config.EnableCors();
+            var container = ContainerSingleton.GetContainer();
+            config.DependencyResolver = new ContainerResolver(container);
+            var webApiConfig = container.Resolve<EngineConfiguration>().WebApi;
+            if (webApiConfig.Origins.Any())
+                config.EnableCors(new EnableCorsAttribute(string.Join(",", webApiConfig.Origins), "*", "*"));
             config.Routes.MapHttpRoute(
                 name: "DefaultApi",
                 routeTemplate: "api/{controller}/{id}",

IntegrationEngine/Configuration/WebApiConfiguration.cs

@@ -10,5 +10,6 @@ public class WebApiConfiguration
     {
         public string HostName { get; set; }
         public int Port { get; set; }
+        public IList<string> Origins { get; set; }
     }
 }

configuration/IntegrationEngine.json

@@ -1,7 +1,8 @@
 {
     "WebApi": {
         "HostName": "localhost",
-        "Port": 9001
+        "Port": 9001,
+        "Origins": ["*"]
     },
     "MessageQueue": {
         "QueueName": "myqueue",