messing around (#230)

src/Ocelot/Cache/CachedResponse.cs

@@ -6,20 +6,25 @@ namespace Ocelot.Cache
     public class CachedResponse
     {
         public CachedResponse(
-            HttpStatusCode statusCode = HttpStatusCode.OK,
-            Dictionary<string, IEnumerable<string>> headers = null,
-            string body = null
+            HttpStatusCode statusCode,
+            Dictionary<string, IEnumerable<string>> headers,
+            string body,
+            Dictionary<string, IEnumerable<string>> contentHeaders
+
             )
         {
             StatusCode = statusCode;
             Headers = headers ?? new Dictionary<string, IEnumerable<string>>();
+            ContentHeaders = contentHeaders ?? new Dictionary<string, IEnumerable<string>>();
             Body = body ?? "";
         }
 
         public HttpStatusCode StatusCode { get; private set; }
 
         public Dictionary<string, IEnumerable<string>> Headers { get; private set; }
 
+        public Dictionary<string, IEnumerable<string>> ContentHeaders { get; private set; }
+
         public string Body { get; private set; }
     }
 }

src/Ocelot/Cache/Middleware/OutputCacheMiddleware.cs

@@ -82,13 +82,21 @@ internal HttpResponseMessage CreateHttpResponseMessage(CachedResponse cached)
             }
 
             var response = new HttpResponseMessage(cached.StatusCode);
+
             foreach (var header in cached.Headers)
             {
                 response.Headers.Add(header.Key, header.Value);
             }
+
             var content = new MemoryStream(Convert.FromBase64String(cached.Body));
+
             response.Content = new StreamContent(content);
 
+            foreach (var header in cached.ContentHeaders)
+            {
+                response.Content.Headers.Add(header.Key, header.Value);
+            }
+
             return response;
         }
 
@@ -109,7 +117,10 @@ internal async Task<CachedResponse> CreateCachedResponse(HttpResponseMessage res
                 body = Convert.ToBase64String(content);
             }
 
-            var cached = new CachedResponse(statusCode, headers, body);
+            var contentHeaders = response?.Content?.Headers.ToDictionary(v => v.Key, v => v.Value);
+
+
+            var cached = new CachedResponse(statusCode, headers, body, contentHeaders);
             return cached;
         }
     }

test/Ocelot.AcceptanceTests/CachingTests.cs

@@ -61,6 +61,7 @@ public void should_return_cached_response()
                 .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
                 .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
                 .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
+                .And(x => _steps.ThenTheContentLengthIs(16))
                 .BDDfy();
         }
 

test/Ocelot.AcceptanceTests/Steps.cs

@@ -457,5 +457,10 @@ public void ThenTheRequestIdIsReturned(string expected)
         {
             _response.Headers.GetValues(RequestIdKey).First().ShouldBe(expected);
         }
+
+        public void ThenTheContentLengthIs(int expected)
+        {
+            _response.Content.Headers.ContentLength.ShouldBe(expected);
+        }
     }
 }

test/Ocelot.ManualTest/ManualTestStartup.cs

@@ -34,4 +34,4 @@ public void Configure(IApplicationBuilder app)
             app.UseOcelot().Wait();
         }
     }
-}
+}

test/Ocelot.ManualTest/configuration.json

@@ -76,8 +76,7 @@
       "UpstreamHttpMethod": [ "Get" ],
       "HttpHandlerOptions": {
         "AllowAutoRedirect": true,
-        "UseCookieContainer": true,
-        "UseTracing": true
+        "UseCookieContainer": true
       },
       "QoSOptions": {
         "ExceptionsAllowedBeforeBreaking": 3,

test/Ocelot.UnitTests/Cache/OutputCacheMiddlewareRealCacheTests.cs

@@ -0,0 +1,131 @@
+using Ocelot.Infrastructure.RequestData;
+
+namespace Ocelot.UnitTests.Cache
+{
+    using System.Linq;
+    using System.Net;
+    using System.Net.Http.Headers;
+    using CacheManager.Core;
+    using Shouldly;
+    using System.Collections.Generic;
+    using System.Net.Http;
+    using Microsoft.AspNetCore.Builder;
+    using Microsoft.Extensions.DependencyInjection;
+    using Moq;
+    using Ocelot.Cache;
+    using Ocelot.Cache.Middleware;
+    using Ocelot.Configuration;
+    using Ocelot.Configuration.Builder;
+    using Ocelot.DownstreamRouteFinder;
+    using Ocelot.DownstreamRouteFinder.UrlMatcher;
+    using Ocelot.Logging;
+    using Ocelot.Responses;
+    using TestStack.BDDfy;
+    using Xunit;
+
+    public class OutputCacheMiddlewareRealCacheTests : ServerHostedMiddlewareTest
+    {
+        private IOcelotCache<CachedResponse> _cacheManager;
+        private CachedResponse _response;
+        private IRequestScopedDataRepository _repo;
+
+        public OutputCacheMiddlewareRealCacheTests()
+        {
+            ScopedRepository
+                .Setup(sr => sr.Get<HttpRequestMessage>("DownstreamRequest"))
+                .Returns(new OkResponse<HttpRequestMessage>(new HttpRequestMessage(HttpMethod.Get, "https://some.url/blah?abcd=123")));
+
+            GivenTheTestServerIsConfigured();
+        }
+
+        [Fact]
+        public void should_cache_content_headers()
+        {
+            var content = new StringContent("{\"Test\": 1}")
+            {
+                Headers = { ContentType = new MediaTypeHeaderValue("application/json")}
+            };
+
+            var response = new HttpResponseMessage(HttpStatusCode.OK)
+            {
+                Content = content,
+            };
+
+            this.Given(x => x.GivenResponseIsNotCached(response))
+                .And(x => x.GivenTheDownstreamRouteIs())
+                .And(x => x.GivenThereAreNoErrors())
+                .And(x => x.GivenThereIsADownstreamUrl())
+                .When(x => x.WhenICallTheMiddleware())
+                .Then(x => x.ThenTheContentTypeHeaderIsCached())
+                .BDDfy();
+        }
+
+        private void ThenTheContentTypeHeaderIsCached()
+        {
+            var result = _cacheManager.Get("GET-https://some.url/blah?abcd=123", "kanken");
+            var header = result.ContentHeaders["Content-Type"];
+            header.First().ShouldBe("application/json");
+        }
+
+        protected override void GivenTheTestServerServicesAreConfigured(IServiceCollection services)
+        {
+            var cacheManagerOutputCache = CacheFactory.Build<CachedResponse>("OcelotOutputCache", x =>
+            {
+                x.WithDictionaryHandle();
+            });
+
+            _cacheManager = new OcelotCacheManagerCache<CachedResponse>(cacheManagerOutputCache);
+
+            services.AddSingleton<ICacheManager<CachedResponse>>(cacheManagerOutputCache);
+            services.AddSingleton<IOcelotCache<CachedResponse>>(_cacheManager);
+
+            services.AddSingleton<IOcelotLoggerFactory, AspDotNetLoggerFactory>();
+
+            services.AddLogging();
+            services.AddSingleton(_cacheManager);
+            services.AddSingleton(ScopedRepository.Object);
+            services.AddSingleton<IRegionCreator, RegionCreator>();
+        }
+
+        protected override void GivenTheTestServerPipelineIsConfigured(IApplicationBuilder app)
+        {
+            app.UseOutputCacheMiddleware();
+        }
+
+        private void GivenResponseIsNotCached(HttpResponseMessage message)
+        {
+            ScopedRepository
+                .Setup(x => x.Get<HttpResponseMessage>("HttpResponseMessage"))
+                .Returns(new OkResponse<HttpResponseMessage>(message));
+        }
+
+        private void GivenTheDownstreamRouteIs()
+        {
+            var reRoute = new ReRouteBuilder()
+                .WithIsCached(true)
+                .WithCacheOptions(new CacheOptions(100, "kanken"))
+                .WithUpstreamHttpMethod(new List<string> { "Get" })
+                .Build();
+
+            var downstreamRoute = new DownstreamRoute(new List<PlaceholderNameAndValue>(), reRoute);
+
+            ScopedRepository
+                .Setup(x => x.Get<DownstreamRoute>(It.IsAny<string>()))
+                .Returns(new OkResponse<DownstreamRoute>(downstreamRoute));
+        }
+
+        private void GivenThereAreNoErrors()
+        {
+            ScopedRepository
+                .Setup(x => x.Get<bool>("OcelotMiddlewareError"))
+                .Returns(new OkResponse<bool>(false));
+        }
+
+        private void GivenThereIsADownstreamUrl()
+        {
+            ScopedRepository
+                .Setup(x => x.Get<string>("DownstreamUrl"))
+                .Returns(new OkResponse<string>("anything"));
+        }
+    }
+}

test/Ocelot.UnitTests/Cache/OutputCacheMiddlewareTests.cs

@@ -1,4 +1,6 @@
-namespace Ocelot.UnitTests.Cache
+using System.Net;
+
+namespace Ocelot.UnitTests.Cache
 {
     using System;
     using System.Collections.Generic;
@@ -36,7 +38,7 @@ public OutputCacheMiddlewareTests()
         [Fact]
         public void should_returned_cached_item_when_it_is_in_cache()
         {
-            var cachedResponse = new CachedResponse();
+            var cachedResponse = new CachedResponse(HttpStatusCode.OK, new Dictionary<string, IEnumerable<string>>(), "", new Dictionary<string, IEnumerable<string>>());
             this.Given(x => x.GivenThereIsACachedResponse(cachedResponse))
                 .And(x => x.GivenTheDownstreamRouteIs())
                 .And(x => x.GivenThereIsADownstreamUrl())