Fix/issue666 (#889)

* cache key now can generate from query string for request with Get Methods and request content for requests with post methods

* MD5Helper Added. OutputCacheMiddleware now can generate cache key using method, url and content

* unit test created for CacheKeyGenerator

* CacheKeyGenerator Registered in OcelotBuilder as singletone
This commit is contained in:
Ali
2019-05-20 12:13:45 +04:30
committed by Thiago Loureiro
parent 5cf873eb52
commit 2eb8a19f7b
10 changed files with 110 additions and 8 deletions

View File

@ -0,0 +1,34 @@
using System.Net.Http;
using Microsoft.AspNetCore.Http;
using Ocelot.Cache;
using Ocelot.Middleware;
using Shouldly;
using TestStack.BDDfy;
using Xunit;
namespace Ocelot.UnitTests.Cache {
public class CacheKeyGeneratorTests {
private readonly ICacheKeyGenerator _cacheKeyGenerator;
private readonly DownstreamContext _downstreamContext;
public CacheKeyGeneratorTests() {
_cacheKeyGenerator = new CacheKeyGenerator();
_cacheKeyGenerator = new CacheKeyGenerator();
_downstreamContext = new DownstreamContext(new DefaultHttpContext()) {
DownstreamRequest = new Ocelot.Request.Middleware.DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "https://some.url/blah?abcd=123"))
};
}
[Fact]
public void should_generate_cache_key_from_context() {
this.Given(x => x.GivenCacheKeyFromContext(_downstreamContext))
.BDDfy();
}
private void GivenCacheKeyFromContext(DownstreamContext context) {
string generatedCacheKey = _cacheKeyGenerator.GenerateRequestCacheKey(context);
string cachekey = MD5Helper.GenerateMd5("GET-https://some.url/blah?abcd=123");
generatedCacheKey.ShouldBe(cachekey);
}
}
}

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@ -27,14 +27,17 @@
private OutputCacheMiddleware _middleware;
private readonly DownstreamContext _downstreamContext;
private readonly OcelotRequestDelegate _next;
private readonly ICacheKeyGenerator _cacheKeyGenerator;
private CachedResponse _response;
public OutputCacheMiddlewareTests()
{
_cache = new Mock<IOcelotCache<CachedResponse>>();
_downstreamContext = new DownstreamContext(new DefaultHttpContext());
_loggerFactory = new Mock<IOcelotLoggerFactory>();
_logger = new Mock<IOcelotLogger>();
_cacheKeyGenerator = new CacheKeyGenerator();
_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"));
@ -89,7 +92,7 @@
private void WhenICallTheMiddleware()
{
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cache.Object);
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cache.Object, _cacheKeyGenerator);
_middleware.Invoke(_downstreamContext).GetAwaiter().GetResult();
}

View File

@ -23,6 +23,7 @@
public class OutputCacheMiddlewareRealCacheTests
{
private readonly IOcelotCache<CachedResponse> _cacheManager;
private readonly ICacheKeyGenerator _cacheKeyGenerator;
private readonly OutputCacheMiddleware _middleware;
private readonly DownstreamContext _downstreamContext;
private OcelotRequestDelegate _next;
@ -32,17 +33,18 @@
public OutputCacheMiddlewareRealCacheTests()
{
_loggerFactory = new Mock<IOcelotLoggerFactory>();
_logger = new Mock<IOcelotLogger>();
_logger = new Mock<IOcelotLogger>();
_loggerFactory.Setup(x => x.CreateLogger<OutputCacheMiddleware>()).Returns(_logger.Object);
var cacheManagerOutputCache = CacheFactory.Build<CachedResponse>("OcelotOutputCache", x =>
{
x.WithDictionaryHandle();
});
_cacheManager = new OcelotCacheManagerCache<CachedResponse>(cacheManagerOutputCache);
_cacheKeyGenerator = new CacheKeyGenerator();
_downstreamContext = new DownstreamContext(new DefaultHttpContext());
_downstreamContext.DownstreamRequest = new Ocelot.Request.Middleware.DownstreamRequest(new HttpRequestMessage(HttpMethod.Get, "https://some.url/blah?abcd=123"));
_next = context => Task.CompletedTask;
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cacheManager);
_middleware = new OutputCacheMiddleware(_next, _loggerFactory.Object, _cacheManager, _cacheKeyGenerator);
}
[Fact]
@ -69,7 +71,8 @@
private void ThenTheContentTypeHeaderIsCached()
{
var result = _cacheManager.Get("GET-https://some.url/blah?abcd=123", "kanken");
string cacheKey = MD5Helper.GenerateMd5("GET-https://some.url/blah?abcd=123");
var result = _cacheManager.Get(cacheKey, "kanken");
var header = result.ContentHeaders["Content-Type"];
header.First().ShouldBe("application/json");
}