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Feature/dont validate cached content headers (#406)

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* #372 use period timespan to decide when client can make requests again

* #400 dont validate cached body headers
This commit is contained in:
Tom Pallister
2018-06-15 20:30:25 +01:00
committed by GitHub
parent 9979f8a4b8
commit 8e1a5ce827
4 changed files with 505 additions and 435 deletions
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430
test/Ocelot.AcceptanceTests/CachingTests.cs
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@ -1,191 +1,239 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Ocelot.Configuration.File;
using TestStack.BDDfy;
using Xunit;
namespace Ocelot.AcceptanceTests
{
public class CachingTests : IDisposable
{
private IWebHost _builder;
private readonly Steps _steps;
public CachingTests()
{
_steps = new Steps();
}
[Fact]
public void should_return_cached_response()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 100
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.ThenTheContentLengthIs(16))
.BDDfy();
}
[Fact]
public void should_return_cached_response_when_using_jsonserialized_cache()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 100
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunningUsingJsonSerializedCache())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
[Fact]
public void should_not_return_cached_response_as_ttl_expires()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 1
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.And(x => x.GivenTheCacheExpires())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
.BDDfy();
}
private void GivenTheCacheExpires()
{
Thread.Sleep(1000);
}
private void GivenTheServiceNowReturns(string url, int statusCode, string responseBody)
{
_builder.Dispose();
GivenThereIsAServiceRunningOn(url, statusCode, responseBody);
}
private void GivenThereIsAServiceRunningOn(string url, int statusCode, string responseBody)
{
_builder = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
});
})
.Build();
_builder.Start();
}
public void Dispose()
{
_builder?.Dispose();
_steps.Dispose();
}
}
}
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Ocelot.Configuration.File;
using TestStack.BDDfy;
using Xunit;
namespace Ocelot.AcceptanceTests
{
public class CachingTests : IDisposable
{
private IWebHost _builder;
private readonly Steps _steps;
public CachingTests()
{
_steps = new Steps();
}
[Fact]
public void should_return_cached_response()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 100
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura", null, null))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.ThenTheContentLengthIs(16))
.BDDfy();
}
[Fact]
public void should_return_cached_response_with_expires_header()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 52839,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 100
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:52839", 200, "Hello from Laura", "Expires", "-1"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:52839", 200, "Hello from Tom"))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.ThenTheContentLengthIs(16))
.And(x => _steps.ThenTheResponseBodyHeaderIs("Expires", "-1"))
.BDDfy();
}
[Fact]
public void should_return_cached_response_when_using_jsonserialized_cache()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 100
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura", null, null))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunningUsingJsonSerializedCache())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
[Fact]
public void should_not_return_cached_response_as_ttl_expires()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51899,
}
},
DownstreamScheme = "http",
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
FileCacheOptions = new FileCacheOptions
{
TtlSeconds = 1
}
}
}
};
this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51899", 200, "Hello from Laura", null, null))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => x.GivenTheServiceNowReturns("http://localhost:51899", 200, "Hello from Tom"))
.And(x => x.GivenTheCacheExpires())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
.BDDfy();
}
private void GivenTheCacheExpires()
{
Thread.Sleep(1000);
}
private void GivenTheServiceNowReturns(string url, int statusCode, string responseBody)
{
_builder.Dispose();
GivenThereIsAServiceRunningOn(url, statusCode, responseBody, null, null);
}
private void GivenThereIsAServiceRunningOn(string url, int statusCode, string responseBody, string key, string value)
{
_builder = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
if(!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(key))
{
context.Response.Headers.Add(key, value);
}
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
});
})
.Build();
_builder.Start();
}
public void Dispose()
{
_builder?.Dispose();
_steps.Dispose();
}
}
}

6
test/Ocelot.AcceptanceTests/Steps.cs
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@ -392,6 +392,12 @@ namespace Ocelot.AcceptanceTests
header.First().ShouldBe(value);
}
public void ThenTheResponseBodyHeaderIs(string key, string value)
{
var header = _response.Content.Headers.GetValues(key);
header.First().ShouldBe(value);
}
public void ThenTheTraceHeaderIsSet(string key)
{
var header = _response.Headers.GetValues(key);

264
test/Ocelot.UnitTests/Cache/OutputCacheMiddlewareTests.cs
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@ -1,124 +1,140 @@
namespace Ocelot.UnitTests.Cache
{
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
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 TestStack.BDDfy;
using Xunit;
using System.Net;
using Ocelot.Middleware;
using Ocelot.Middleware.Multiplexer;
public class OutputCacheMiddlewareTests
{
private readonly Mock<IOcelotCache<CachedResponse>> _cacheManager;
private readonly Mock<IOcelotLoggerFactory> _loggerFactory;
private Mock<IOcelotLogger> _logger;
private OutputCacheMiddleware _middleware;
private readonly DownstreamContext _downstreamContext;
private readonly OcelotRequestDelegate _next;
private CachedResponse _response;
private readonly IRegionCreator _regionCreator;
public OutputCacheMiddlewareTests()
{
_cacheManager = new Mock<IOcelotCache<CachedResponse>>();
_regionCreator = new RegionCreator();
_downstreamContext = new DownstreamContext(new DefaultHttpContext());
_loggerFactory = new Mock<IOcelotLoggerFactory>();
_logger = new Mock<IOcelotLogger>();
_loggerFactory.Setup(x => x.CreateLogger<OutputCacheMiddleware>()).Returns(_logger.Object);
_next = context => Task.CompletedTask;
_downstreamContext.DownstreamRequest = new Ocelot.Request.Middleware.DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "https://some.url/blah?abcd=123"));
}
[Fact]
public void should_returned_cached_item_when_it_is_in_cache()
{
var headers = new Dictionary<string, IEnumerable<string>>
{
{ "test", new List<string> { "test" } }
};
var contentHeaders = new Dictionary<string, IEnumerable<string>>
{
{ "content-type", new List<string> { "application/json" } }
};
var cachedResponse = new CachedResponse(HttpStatusCode.OK, headers, "", contentHeaders);
this.Given(x => x.GivenThereIsACachedResponse(cachedResponse))
.And(x => x.GivenTheDownstreamRouteIs())
.When(x => x.WhenICallTheMiddleware())
.Then(x => x.ThenTheCacheGetIsCalledCorrectly())
.BDDfy();
}
[Fact]
public void should_continue_with_pipeline_and_cache_response()
{
this.Given(x => x.GivenResponseIsNotCached())
.And(x => x.GivenTheDownstreamRouteIs())
.When(x => x.WhenICallTheMiddleware())
.Then(x => x.ThenTheCacheAddIsCalledCorrectly())
.BDDfy();
}
private void WhenICallTheMiddleware()
{
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cacheManager.Object, _regionCreator);
_middleware.Invoke(_downstreamContext).GetAwaiter().GetResult();
}
private void GivenThereIsACachedResponse(CachedResponse response)
{
_response = response;
_cacheManager
.Setup(x => x.Get(It.IsAny<string>(), It.IsAny<string>()))
.Returns(_response);
}
private void GivenResponseIsNotCached()
{
_downstreamContext.DownstreamResponse = new DownstreamResponse(new HttpResponseMessage());
}
private void GivenTheDownstreamRouteIs()
{
var reRoute = new ReRouteBuilder()
.WithDownstreamReRoute(new DownstreamReRouteBuilder()
.WithIsCached(true)
.WithCacheOptions(new CacheOptions(100, "kanken"))
.WithUpstreamHttpMethod(new List<string> { "Get" })
.Build())
.WithUpstreamHttpMethod(new List<string> { "Get" })
.Build();
var downstreamRoute = new DownstreamRoute(new List<PlaceholderNameAndValue>(), reRoute);
_downstreamContext.TemplatePlaceholderNameAndValues = downstreamRoute.TemplatePlaceholderNameAndValues;
_downstreamContext.DownstreamReRoute = downstreamRoute.ReRoute.DownstreamReRoute[0];
}
private void ThenTheCacheGetIsCalledCorrectly()
{
_cacheManager
.Verify(x => x.Get(It.IsAny<string>(), It.IsAny<string>()), Times.Once);
}
private void ThenTheCacheAddIsCalledCorrectly()
{
_cacheManager
.Verify(x => x.Add(It.IsAny<string>(), It.IsAny<CachedResponse>(), It.IsAny<TimeSpan>(), It.IsAny<string>()), Times.Once);
}
}
}
namespace Ocelot.UnitTests.Cache
{
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
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 TestStack.BDDfy;
using Xunit;
using System.Net;
using Ocelot.Middleware;
using Ocelot.Middleware.Multiplexer;
public class OutputCacheMiddlewareTests
{
private readonly Mock<IOcelotCache<CachedResponse>> _cacheManager;
private readonly Mock<IOcelotLoggerFactory> _loggerFactory;
private Mock<IOcelotLogger> _logger;
private OutputCacheMiddleware _middleware;
private readonly DownstreamContext _downstreamContext;
private readonly OcelotRequestDelegate _next;
private CachedResponse _response;
private readonly IRegionCreator _regionCreator;
public OutputCacheMiddlewareTests()
{
_cacheManager = new Mock<IOcelotCache<CachedResponse>>();
_regionCreator = new RegionCreator();
_downstreamContext = new DownstreamContext(new DefaultHttpContext());
_loggerFactory = new Mock<IOcelotLoggerFactory>();
_logger = new Mock<IOcelotLogger>();
_loggerFactory.Setup(x => x.CreateLogger<OutputCacheMiddleware>()).Returns(_logger.Object);
_next = context => Task.CompletedTask;
_downstreamContext.DownstreamRequest = new Ocelot.Request.Middleware.DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "https://some.url/blah?abcd=123"));
}
[Fact]
public void should_returned_cached_item_when_it_is_in_cache()
{
var headers = new Dictionary<string, IEnumerable<string>>
{
{ "test", new List<string> { "test" } }
};
var contentHeaders = new Dictionary<string, IEnumerable<string>>
{
{ "content-type", new List<string> { "application/json" } }
};
var cachedResponse = new CachedResponse(HttpStatusCode.OK, headers, "", contentHeaders);
this.Given(x => x.GivenThereIsACachedResponse(cachedResponse))
.And(x => x.GivenTheDownstreamRouteIs())
.When(x => x.WhenICallTheMiddleware())
.Then(x => x.ThenTheCacheGetIsCalledCorrectly())
.BDDfy();
}
[Fact]
public void should_returned_cached_item_when_it_is_in_cache_expires_header()
{
var contentHeaders = new Dictionary<string, IEnumerable<string>>
{
{ "Expires", new List<string> { "-1" } }
};
var cachedResponse = new CachedResponse(HttpStatusCode.OK, new Dictionary<string, IEnumerable<string>>(), "", contentHeaders);
this.Given(x => x.GivenThereIsACachedResponse(cachedResponse))
.And(x => x.GivenTheDownstreamRouteIs())
.When(x => x.WhenICallTheMiddleware())
.Then(x => x.ThenTheCacheGetIsCalledCorrectly())
.BDDfy();
}
[Fact]
public void should_continue_with_pipeline_and_cache_response()
{
this.Given(x => x.GivenResponseIsNotCached(new HttpResponseMessage()))
.And(x => x.GivenTheDownstreamRouteIs())
.When(x => x.WhenICallTheMiddleware())
.Then(x => x.ThenTheCacheAddIsCalledCorrectly())
.BDDfy();
}
private void WhenICallTheMiddleware()
{
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cacheManager.Object, _regionCreator);
_middleware.Invoke(_downstreamContext).GetAwaiter().GetResult();
}
private void GivenThereIsACachedResponse(CachedResponse response)
{
_response = response;
_cacheManager
.Setup(x => x.Get(It.IsAny<string>(), It.IsAny<string>()))
.Returns(_response);
}
private void GivenResponseIsNotCached(HttpResponseMessage responseMessage)
{
_downstreamContext.DownstreamResponse = new DownstreamResponse(responseMessage);
}
private void GivenTheDownstreamRouteIs()
{
var reRoute = new ReRouteBuilder()
.WithDownstreamReRoute(new DownstreamReRouteBuilder()
.WithIsCached(true)
.WithCacheOptions(new CacheOptions(100, "kanken"))
.WithUpstreamHttpMethod(new List<string> { "Get" })
.Build())
.WithUpstreamHttpMethod(new List<string> { "Get" })
.Build();
var downstreamRoute = new DownstreamRoute(new List<PlaceholderNameAndValue>(), reRoute);
_downstreamContext.TemplatePlaceholderNameAndValues = downstreamRoute.TemplatePlaceholderNameAndValues;
_downstreamContext.DownstreamReRoute = downstreamRoute.ReRoute.DownstreamReRoute[0];
}
private void ThenTheCacheGetIsCalledCorrectly()
{
_cacheManager
.Verify(x => x.Get(It.IsAny<string>(), It.IsAny<string>()), Times.Once);
}
private void ThenTheCacheAddIsCalledCorrectly()
{
_cacheManager
.Verify(x => x.Add(It.IsAny<string>(), It.IsAny<CachedResponse>(), It.IsAny<TimeSpan>(), It.IsAny<string>()), Times.Once);
}
}
}