#71 - Create IHostingEnvironment.

src/Microsoft.AspNet.Hosting/HostingEnvironment.cs

@@ -0,0 +1,12 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.AspNet.Hosting
+{
+    public class HostingEnvironment : IHostingEnvironment
+    {
+        public string EnvironmentName { get; set; }
+
+        public string WebRoot { get; set; }
+    }
+}

src/Microsoft.AspNet.Hosting/HostingUtilities.cs

@@ -16,10 +16,12 @@
 // permissions and limitations under the License.
 
 using System;
+using System.IO;
+using Microsoft.Framework.ConfigurationModel;
 
 namespace Microsoft.AspNet.Hosting
 {
-    internal static class Utilities
+    public static class HostingUtilities
     {
         internal static Tuple<string, string> SplitTypeName(string identifier)
         {
@@ -33,5 +35,20 @@ namespace Microsoft.AspNet.Hosting
             }
             return new Tuple<string, string>(typeName, assemblyName);
         }
+
+        public static string GetWebRoot(string applicationBasePath)
+        {
+            try
+            {
+                var config = new Configuration();
+                config.AddJsonFile(Path.Combine(applicationBasePath, "project.json"));
+                var webroot = config.Get("webroot") ?? string.Empty;
+                return Path.GetFullPath(Path.Combine(applicationBasePath, webroot));
+            }
+            catch (Exception)
+            {
+                return applicationBasePath;
+            }
+        }
     }
 }

src/Microsoft.AspNet.Hosting/IHostingEnvironment.cs

@@ -0,0 +1,15 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Microsoft.Framework.Runtime;
+
+namespace Microsoft.AspNet.Hosting
+{
+    [AssemblyNeutral]
+    public interface IHostingEnvironment
+    {
+        string EnvironmentName { get; }
+
+        string WebRoot { get; }
+    }
+}

src/Microsoft.AspNet.Hosting/Program.cs

@@ -29,6 +29,8 @@ namespace Microsoft.AspNet.Hosting
     public class Program
     {
         private const string HostingIniFile = "Microsoft.AspNet.Hosting.ini";
+        private const string DefaultEnvironmentName = "Development";
+        private const string EnvironmentKey = "KRE_ENV";
 
         private readonly IServiceProvider _serviceProvider;
 
@@ -47,33 +49,31 @@ namespace Microsoft.AspNet.Hosting
             config.AddEnvironmentVariables();
             config.AddCommandLine(args);
 
+            var appEnv = _serviceProvider.GetService<IApplicationEnvironment>();
+
+            var hostingEnv = new HostingEnvironment()
+            {
+                EnvironmentName = config.Get(EnvironmentKey) ?? DefaultEnvironmentName,
+                WebRoot = HostingUtilities.GetWebRoot(appEnv.ApplicationBasePath),
+            };
+
             var serviceCollection = new ServiceCollection();
             serviceCollection.Add(HostingServices.GetDefaultServices(config));
+            serviceCollection.AddInstance<IHostingEnvironment>(hostingEnv);
             var services = serviceCollection.BuildServiceProvider(_serviceProvider);
 
-            var appEnvironment = _serviceProvider.GetService<IApplicationEnvironment>();
-
             var context = new HostingContext()
             {
                 Services = services,
                 Configuration = config,
                 ServerName = config.Get("server"), // TODO: Key names
                 ApplicationName = config.Get("app")  // TODO: Key names
-                    ?? appEnvironment.ApplicationName,
-                EnvironmentName = config.Get("env") ?? "Development"
+                    ?? appEnv.ApplicationName,
+                EnvironmentName = hostingEnv.EnvironmentName,
             };
 
             var engine = services.GetService<IHostingEngine>();
-            if (engine == null)
-            {
-                throw new Exception("TODO: IHostingEngine service not available exception");
-            }
-
             var appShutdownService = _serviceProvider.GetService<IApplicationShutdown>();
-            if (appShutdownService == null)
-            {
-                throw new Exception("TODO: IApplicationShutdown service not available");
-            }
             var shutdownHandle = new ManualResetEvent(false);
 
             var serverShutdown = engine.Start(context);

src/Microsoft.AspNet.Hosting/Server/ServerManager.cs

@@ -38,7 +38,7 @@ namespace Microsoft.AspNet.Hosting.Server
                 throw new ArgumentException(string.Empty, "serverFactoryIdentifier");
             }
 
-            var nameParts = Utilities.SplitTypeName(serverFactoryIdentifier);
+            var nameParts = HostingUtilities.SplitTypeName(serverFactoryIdentifier);
             string typeName = nameParts.Item1;
             string assemblyName = nameParts.Item2;
 

src/Microsoft.AspNet.Hosting/project.json

@@ -6,6 +6,7 @@
     "Microsoft.AspNet.PipelineCore": "1.0.0-*",
     "Microsoft.AspNet.Security.DataProtection": "1.0.0-*",
     "Microsoft.Framework.ConfigurationModel": "1.0.0-*",
+    "Microsoft.Framework.ConfigurationModel.Json": "1.0.0-*",
     "Microsoft.Framework.DependencyInjection": "1.0.0-*",
     "Microsoft.Framework.Logging": "1.0.0-*",
     "Microsoft.Framework.Runtime.Interfaces":  "1.0.0-*"

src/Microsoft.AspNet.TestHost/TestServer.cs

@@ -17,7 +17,8 @@ namespace Microsoft.AspNet.TestHost
 {
     public class TestServer : IServerFactory, IDisposable
     {
-        private static readonly string ServerName = typeof(TestServer).FullName;
+        private const string DefaultEnvironmentName = "Development";
+        private const string ServerName = nameof(TestServer);
         private static readonly ServerInformation ServerInfo = new ServerInformation();
         private Func<object, Task> _appDelegate;
         private IDisposable _appInstance;
@@ -25,15 +26,11 @@ namespace Microsoft.AspNet.TestHost
 
         public TestServer(IConfiguration config, IServiceProvider serviceProvider, Action<IApplicationBuilder> appStartup)
         {
-            var env = serviceProvider.GetService<IApplicationEnvironment>();
-            if (env == null)
-            {
-                throw new ArgumentException("IApplicationEnvironment couldn't be resolved.", "serviceProvider");
-            }
+            var appEnv = serviceProvider.GetService<IApplicationEnvironment>();
 
             HostingContext hostContext = new HostingContext()
             {
-                ApplicationName = env.ApplicationName,
+                ApplicationName = appEnv.ApplicationName,
                 Configuration = config,
                 ServerFactory = this,
                 Services = serviceProvider,
@@ -51,14 +48,22 @@ namespace Microsoft.AspNet.TestHost
 
         public static TestServer Create(IServiceProvider provider, Action<IApplicationBuilder> app)
         {
+            var appEnv = provider.GetService<IApplicationEnvironment>();
+
+            var hostingEnv = new HostingEnvironment()
+            {
+                EnvironmentName = DefaultEnvironmentName,
+                WebRoot = HostingUtilities.GetWebRoot(appEnv.ApplicationBasePath),
+            };
+
             var collection = new ServiceCollection();
-            var hostingServices = HostingServices.GetDefaultServices();
+            collection.Add(HostingServices.GetDefaultServices());
+            collection.AddInstance<IHostingEnvironment>(hostingEnv);
+
+            var appServices = collection.BuildServiceProvider(provider);
 
             var config = new Configuration();
-            collection.Add(hostingServices);
-
-            var serviceProvider = collection.BuildServiceProvider(provider);
-            return new TestServer(config, serviceProvider, app);
+            return new TestServer(config, appServices, app);
         }
 
         public HttpMessageHandler CreateHandler()

test/Microsoft.AspNet.Hosting.Tests/HostingUtilitiesTests.cs

@@ -0,0 +1,17 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Xunit;
+
+namespace Microsoft.AspNet.Hosting.Tests
+{
+    public class HostingUtilitiesTests
+    {
+        [Fact]
+        public void ReadWebRootFromProjectJson()
+        {
+            var root = HostingUtilities.GetWebRoot(".");
+            Assert.True(root.EndsWith("testroot"));
+        }
+    }
+}

test/Microsoft.AspNet.Hosting.Tests/project.json

@@ -13,5 +13,6 @@
   },
   "commands": {
     "test": "Xunit.KRunner"
-  }
+  },
+  "webroot" : "testroot"
 }

test/Microsoft.AspNet.TestHost.Tests/TestServerTests.cs

@@ -2,10 +2,12 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.IO;
 using System.Net;
 using System.Net.Http;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
+using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Http;
 using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.DependencyInjection.Fallback;
@@ -54,6 +56,16 @@ namespace Microsoft.AspNet.TestHost
             Assert.Equal("CreateInvokesApp", result);
         }
 
+        [Fact]
+        public void WebRootCanBeResolvedFromProjectJson()
+        {
+            TestServer server = TestServer.Create(app =>
+            {
+                var env = app.ApplicationServices.GetService<IHostingEnvironment>();
+                Assert.Equal(Path.GetFullPath("testroot"), env.WebRoot);
+            });
+        }
+
         [Fact]
         public async Task DisposeStreamIgnored()
         {

test/Microsoft.AspNet.TestHost.Tests/project.json

@@ -14,5 +14,6 @@
             "System.Runtime": ""
         }
     }
-  }
+  },
+  "webroot" : "testroot"
 }