Feature/rename middleware (#637)

* #630 only set status code if response hasnt started, otherwise exception

* #623 made {RemoteIpAddress} available as placeholder so you can do x-forwarded-for

* #623 local address different on mac, windows and linux for integration test

* renamed some middlewares so they make more sense

* add downstreamroutefindermiddleware benchmark

src/Ocelot/Claims/Middleware/ClaimsBuilderMiddlewareExtensions.cs

@@ -3,11 +3,11 @@ using Ocelot.Middleware.Pipeline;
 
 namespace Ocelot.Claims.Middleware
 {
-    public static class ClaimsBuilderMiddlewareExtensions
+    public static class ClaimsToClaimsMiddlewareExtensions
     {
-        public static IOcelotPipelineBuilder UseClaimsBuilderMiddleware(this IOcelotPipelineBuilder builder)
+        public static IOcelotPipelineBuilder UseClaimsToClaimsMiddleware(this IOcelotPipelineBuilder builder)
         {
-            return builder.UseMiddleware<ClaimsBuilderMiddleware>();
+            return builder.UseMiddleware<ClaimsToClaimsMiddleware>();
         }
     }
 }

src/Ocelot/Claims/Middleware/ClaimsToClaimsMiddleware.cs

@@ -8,15 +8,15 @@ using Ocelot.Middleware;
 
 namespace Ocelot.Claims.Middleware
 {
-    public class ClaimsBuilderMiddleware : OcelotMiddleware
+    public class ClaimsToClaimsMiddleware : OcelotMiddleware
     {
         private readonly OcelotRequestDelegate _next;
         private readonly IAddClaimsToRequest _addClaimsToRequest;
 
-        public ClaimsBuilderMiddleware(OcelotRequestDelegate next, 
+        public ClaimsToClaimsMiddleware(OcelotRequestDelegate next, 
             IOcelotLoggerFactory loggerFactory,
             IAddClaimsToRequest addClaimsToRequest) 
-                :base(loggerFactory.CreateLogger<ClaimsBuilderMiddleware>())
+                :base(loggerFactory.CreateLogger<ClaimsToClaimsMiddleware>())
         {
             _next = next;
             _addClaimsToRequest = addClaimsToRequest;

src/Ocelot/Headers/Middleware/ClaimsToHeadersMiddleware.cs

@@ -8,15 +8,15 @@ using Ocelot.Middleware;
 
 namespace Ocelot.Headers.Middleware
 {
-    public class HttpRequestHeadersBuilderMiddleware : OcelotMiddleware
+    public class ClaimsToHeadersMiddleware : OcelotMiddleware
     {
         private readonly OcelotRequestDelegate _next;
         private readonly IAddHeadersToRequest _addHeadersToRequest;
 
-        public HttpRequestHeadersBuilderMiddleware(OcelotRequestDelegate next,
+        public ClaimsToHeadersMiddleware(OcelotRequestDelegate next,
             IOcelotLoggerFactory loggerFactory,
             IAddHeadersToRequest addHeadersToRequest)  
-                :base(loggerFactory.CreateLogger<HttpRequestHeadersBuilderMiddleware>())
+                :base(loggerFactory.CreateLogger<ClaimsToHeadersMiddleware>())
         {
             _next = next;
             _addHeadersToRequest = addHeadersToRequest;

src/Ocelot/Headers/Middleware/ClaimsToHeadersMiddlewareExtensions.cs

@@ -0,0 +1,13 @@
+using Microsoft.AspNetCore.Builder;
+using Ocelot.Middleware.Pipeline;
+
+namespace Ocelot.Headers.Middleware
+{
+    public static class ClaimsToHeadersMiddlewareExtensions
+    {
+        public static IOcelotPipelineBuilder UseClaimsToHeadersMiddleware(this IOcelotPipelineBuilder builder)
+        {
+            return builder.UseMiddleware<ClaimsToHeadersMiddleware>();
+        }
+    }
+}

src/Ocelot/Headers/Middleware/HttpRequestHeadersBuilderMiddlewareExtensions.cs

@@ -1,13 +0,0 @@
-using Microsoft.AspNetCore.Builder;
-using Ocelot.Middleware.Pipeline;
-
-namespace Ocelot.Headers.Middleware
-{
-    public static class HttpRequestHeadersBuilderMiddlewareExtensions
-    {
-        public static IOcelotPipelineBuilder UseHttpRequestHeadersBuilderMiddleware(this IOcelotPipelineBuilder builder)
-        {
-            return builder.UseMiddleware<HttpRequestHeadersBuilderMiddleware>();
-        }
-    }
-}

src/Ocelot/Middleware/Pipeline/OcelotPipelineExtensions.cs

@@ -91,7 +91,7 @@ namespace Ocelot.Middleware.Pipeline
             }
 
             // The next thing we do is look at any claims transforms in case this is important for authorisation
-            builder.UseClaimsBuilderMiddleware();
+            builder.UseClaimsToClaimsMiddleware();
 
             // Allow pre authorisation logic. The idea being people might want to run something custom before what is built in.
             builder.UseIfNotNull(pipelineConfiguration.PreAuthorisationMiddleware);
@@ -109,14 +109,14 @@ namespace Ocelot.Middleware.Pipeline
                 builder.Use(pipelineConfiguration.AuthorisationMiddleware);
             }
 
-            // Now we can run any header transformation logic
+            // Now we can run the claims to headers transformation middleware
-            builder.UseHttpRequestHeadersBuilderMiddleware();
+            builder.UseClaimsToHeadersMiddleware();
 
             // Allow the user to implement their own query string manipulation logic
             builder.UseIfNotNull(pipelineConfiguration.PreQueryStringBuilderMiddleware);
 
-            // Now we can run any query string transformation logic
+            // Now we can run any claims to query string transformation middleware
-            builder.UseQueryStringBuilderMiddleware();
+            builder.UseClaimsToQueryStringMiddleware();
 
             // Get the load balancer for this request
             builder.UseLoadBalancingMiddleware();

src/Ocelot/QueryStrings/Middleware/ClaimsToQueryStringMiddleware.cs

@@ -1,22 +1,22 @@
-using System.Linq;
+namespace Ocelot.QueryStrings.Middleware
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Http;
-using Ocelot.DownstreamRouteFinder.Middleware;
-using Ocelot.Infrastructure.RequestData;
-using Ocelot.Logging;
-using Ocelot.Middleware;
-
-namespace Ocelot.QueryStrings.Middleware
 {
-    public class QueryStringBuilderMiddleware : OcelotMiddleware
+    using System.Linq;
+    using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Http;
+    using Ocelot.DownstreamRouteFinder.Middleware;
+    using Ocelot.Infrastructure.RequestData;
+    using Ocelot.Logging;
+    using Ocelot.Middleware;
+
+    public class ClaimsToQueryStringMiddleware : OcelotMiddleware
     {
         private readonly OcelotRequestDelegate _next;
         private readonly IAddQueriesToRequest _addQueriesToRequest;
 
-        public QueryStringBuilderMiddleware(OcelotRequestDelegate next,
+        public ClaimsToQueryStringMiddleware(OcelotRequestDelegate next,
             IOcelotLoggerFactory loggerFactory,
             IAddQueriesToRequest addQueriesToRequest) 
-                : base(loggerFactory.CreateLogger<QueryStringBuilderMiddleware>())
+                : base(loggerFactory.CreateLogger<ClaimsToQueryStringMiddleware>())
         {
             _next = next;
             _addQueriesToRequest = addQueriesToRequest;

src/Ocelot/QueryStrings/Middleware/ClaimsToQueryStringMiddlewareExtensions.cs

@@ -0,0 +1,13 @@
+namespace Ocelot.QueryStrings.Middleware
+{
+    using Microsoft.AspNetCore.Builder;
+    using Ocelot.Middleware.Pipeline;
+
+    public static class ClaimsToQueryStringMiddlewareExtensions
+    {
+        public static IOcelotPipelineBuilder UseClaimsToQueryStringMiddleware(this IOcelotPipelineBuilder builder)
+        {
+            return builder.UseMiddleware<ClaimsToQueryStringMiddleware>();
+        }
+    }
+}

src/Ocelot/QueryStrings/Middleware/QueryStringBuilderMiddlewareExtensions.cs

@@ -1,13 +0,0 @@
-using Microsoft.AspNetCore.Builder;
-using Ocelot.Middleware.Pipeline;
-
-namespace Ocelot.QueryStrings.Middleware
-{
-    public static class QueryStringBuilderMiddlewareExtensions
-    {
-        public static IOcelotPipelineBuilder UseQueryStringBuilderMiddleware(this IOcelotPipelineBuilder builder)
-        {
-            return builder.UseMiddleware<QueryStringBuilderMiddleware>();
-        }
-    }
-}

test/Ocelot.Benchmarks/DownstreamRouteFinderMiddlewareBenchmarks.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Columns;
+using BenchmarkDotNet.Configs;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Ocelot.Configuration.File;
+using Ocelot.DownstreamRouteFinder.UrlMatcher;
+using Ocelot.Middleware;
+using Ocelot.DependencyInjection;
+using System.Net.Http;
+using System.Threading.Tasks;
+using BenchmarkDotNet.Attributes.Jobs;
+using Ocelot.Configuration.Repository;
+using Ocelot.Infrastructure.RequestData;
+using Ocelot.Logging;
+using Ocelot.Errors.Middleware;
+using Microsoft.Extensions.DependencyInjection;
+using BenchmarkDotNet.Diagnosers;
+using BenchmarkDotNet.Validators;
+using Ocelot.DownstreamRouteFinder.Middleware;
+using Ocelot.DownstreamRouteFinder.Finder;
+using Ocelot.Middleware.Multiplexer;
+
+namespace Ocelot.Benchmarks
+{
+    [SimpleJob(launchCount: 1, warmupCount: 2, targetCount: 5)]
+    [Config(typeof(DownstreamRouteFinderMiddlewareBenchmarks))]
+    public class DownstreamRouteFinderMiddlewareBenchmarks : ManualConfig
+    {
+        private DownstreamRouteFinderMiddleware _middleware;
+        private DownstreamContext _downstreamContext;
+        private OcelotRequestDelegate _next;
+
+        public DownstreamRouteFinderMiddlewareBenchmarks()
+        {
+            Add(StatisticColumn.AllStatistics);
+            Add(MemoryDiagnoser.Default);
+            Add(BaselineValidator.FailOnError);
+        }
+
+        [GlobalSetup]
+        public void SetUp()
+        {
+            var serviceCollection = new ServiceCollection();
+            var config = new ConfigurationRoot(new List<IConfigurationProvider>());
+            var builder = new OcelotBuilder(serviceCollection, config);
+            var services = serviceCollection.BuildServiceProvider();
+            var loggerFactory = services.GetService<IOcelotLoggerFactory>();
+            var drpf = services.GetService<IDownstreamRouteProviderFactory>();
+            var icr = services.GetService<IInternalConfigurationRepository>();
+            var multiplexer = services.GetService<IMultiplexer>();
+
+            _next = async context => {
+                await Task.CompletedTask;
+                throw new Exception("BOOM");
+            };
+            
+            _middleware = new DownstreamRouteFinderMiddleware(_next, loggerFactory, drpf, icr, multiplexer);
+            _downstreamContext = new DownstreamContext(new DefaultHttpContext());
+        }
+
+        [Benchmark(Baseline = true)]
+        public async Task Baseline()
+        {
+            await _middleware.Invoke(_downstreamContext);
+        }
+    }
+}

test/Ocelot.UnitTests/Claims/ClaimsToClaimsMiddlewareTests.cs

@@ -17,24 +17,24 @@ namespace Ocelot.UnitTests.Claims
     using TestStack.BDDfy;
     using Xunit;
 
-    public class ClaimsBuilderMiddlewareTests
+    public class ClaimsToClaimsMiddlewareTests
     {
         private readonly Mock<IAddClaimsToRequest> _addHeaders;
         private Mock<IOcelotLoggerFactory> _loggerFactory;
         private Mock<IOcelotLogger> _logger;
-        private readonly ClaimsBuilderMiddleware _middleware;
+        private readonly ClaimsToClaimsMiddleware _middleware;
         private readonly DownstreamContext _downstreamContext;
         private OcelotRequestDelegate _next;
 
-        public ClaimsBuilderMiddlewareTests()
+        public ClaimsToClaimsMiddlewareTests()
         {
             _addHeaders = new Mock<IAddClaimsToRequest>();
             _downstreamContext = new DownstreamContext(new DefaultHttpContext());
             _loggerFactory = new Mock<IOcelotLoggerFactory>();
             _logger = new Mock<IOcelotLogger>();
-            _loggerFactory.Setup(x => x.CreateLogger<ClaimsBuilderMiddleware>()).Returns(_logger.Object);
+            _loggerFactory.Setup(x => x.CreateLogger<ClaimsToClaimsMiddleware>()).Returns(_logger.Object);
             _next = context => Task.CompletedTask;
-            _middleware = new ClaimsBuilderMiddleware(_next, _loggerFactory.Object, _addHeaders.Object);
+            _middleware = new ClaimsToClaimsMiddleware(_next, _loggerFactory.Object, _addHeaders.Object);
         }
 
         [Fact]

test/Ocelot.UnitTests/Headers/ClaimsToHeadersMiddlewareTests.cs

@@ -19,25 +19,25 @@ namespace Ocelot.UnitTests.Headers
     using TestStack.BDDfy;
     using Xunit;
 
-    public class HttpRequestHeadersBuilderMiddlewareTests
+    public class ClaimsToHeadersMiddlewareTests
     {
         private readonly Mock<IAddHeadersToRequest> _addHeaders;
         private Response<DownstreamRoute> _downstreamRoute;
         private Mock<IOcelotLoggerFactory> _loggerFactory;
         private Mock<IOcelotLogger> _logger;
-        private HttpRequestHeadersBuilderMiddleware _middleware;
+        private ClaimsToHeadersMiddleware _middleware;
         private DownstreamContext _downstreamContext;
         private OcelotRequestDelegate _next;
 
-        public HttpRequestHeadersBuilderMiddlewareTests()
+        public ClaimsToHeadersMiddlewareTests()
         {
             _addHeaders = new Mock<IAddHeadersToRequest>();
             _downstreamContext = new DownstreamContext(new DefaultHttpContext());
             _loggerFactory = new Mock<IOcelotLoggerFactory>();
             _logger = new Mock<IOcelotLogger>();
-            _loggerFactory.Setup(x => x.CreateLogger<HttpRequestHeadersBuilderMiddleware>()).Returns(_logger.Object);
+            _loggerFactory.Setup(x => x.CreateLogger<ClaimsToHeadersMiddleware>()).Returns(_logger.Object);
             _next = context => Task.CompletedTask;
-            _middleware = new HttpRequestHeadersBuilderMiddleware(_next, _loggerFactory.Object, _addHeaders.Object);
+            _middleware = new ClaimsToHeadersMiddleware(_next, _loggerFactory.Object, _addHeaders.Object);
             _downstreamContext.DownstreamRequest = new DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "http://test.com"));
         }
 

test/Ocelot.UnitTests/QueryStrings/ClaimsToQueryStringMiddlewareTests.cs

@@ -20,25 +20,25 @@ namespace Ocelot.UnitTests.QueryStrings
     using System.Threading.Tasks;
     using Ocelot.Request.Middleware;
 
-    public class QueryStringBuilderMiddlewareTests
+    public class ClaimsToQueryStringMiddlewareTests
     {
         private readonly Mock<IAddQueriesToRequest> _addQueries;
         private Mock<IOcelotLoggerFactory> _loggerFactory;
         private Mock<IOcelotLogger> _logger;
-        private QueryStringBuilderMiddleware _middleware;
+        private ClaimsToQueryStringMiddleware _middleware;
         private DownstreamContext _downstreamContext;
         private OcelotRequestDelegate _next;
 
-        public QueryStringBuilderMiddlewareTests()
+        public ClaimsToQueryStringMiddlewareTests()
         {
             _downstreamContext = new DownstreamContext(new DefaultHttpContext());
             _loggerFactory = new Mock<IOcelotLoggerFactory>();
             _logger = new Mock<IOcelotLogger>();
-            _loggerFactory.Setup(x => x.CreateLogger<QueryStringBuilderMiddleware>()).Returns(_logger.Object);
+            _loggerFactory.Setup(x => x.CreateLogger<ClaimsToQueryStringMiddleware>()).Returns(_logger.Object);
             _next = context => Task.CompletedTask;
             _addQueries = new Mock<IAddQueriesToRequest>();
             _downstreamContext.DownstreamRequest = new DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "http://test.com"));
-            _middleware = new QueryStringBuilderMiddleware(_next, _loggerFactory.Object, _addQueries.Object);
+            _middleware = new ClaimsToQueryStringMiddleware(_next, _loggerFactory.Object, _addQueries.Object);
         }
 
         [Fact]