| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.impl.cache; |
| |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.time.Instant; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.ScheduledThreadPoolExecutor; |
| |
| import org.apache.hc.client5.http.HttpRoute; |
| import org.apache.hc.client5.http.cache.HttpCacheContext; |
| import org.apache.hc.client5.http.classic.ExecChain; |
| import org.apache.hc.client5.http.classic.ExecRuntime; |
| import org.apache.hc.core5.http.ClassicHttpRequest; |
| import org.apache.hc.core5.http.ClassicHttpResponse; |
| import org.apache.hc.core5.http.HttpEntity; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.io.entity.InputStreamEntity; |
| import org.apache.hc.core5.http.io.support.ClassicRequestBuilder; |
| import org.apache.hc.core5.http.message.BasicClassicHttpRequest; |
| import org.junit.jupiter.api.AfterEach; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| import org.mockito.Mock; |
| import org.mockito.Mockito; |
| import org.mockito.MockitoAnnotations; |
| |
| /** |
| * A suite of acceptance tests for compliance with RFC5861, which |
| * describes the stale-if-error and stale-while-revalidate |
| * Cache-Control extensions. |
| */ |
| public class TestRFC5861Compliance { |
| |
| static final int MAX_BYTES = 1024; |
| static final int MAX_ENTRIES = 100; |
| static final int ENTITY_LENGTH = 128; |
| |
| HttpHost host; |
| HttpRoute route; |
| HttpEntity body; |
| HttpCacheContext context; |
| @Mock |
| ExecChain mockExecChain; |
| @Mock |
| ExecRuntime mockExecRuntime; |
| ClassicHttpRequest request; |
| ClassicHttpResponse originResponse; |
| CacheConfig config; |
| CachingExec impl; |
| HttpCache cache; |
| ScheduledExecutorService executorService; |
| |
| @BeforeEach |
| public void setUp() throws Exception { |
| MockitoAnnotations.openMocks(this); |
| |
| host = new HttpHost("foo.example.com", 80); |
| |
| route = new HttpRoute(host); |
| |
| body = HttpTestUtils.makeBody(ENTITY_LENGTH); |
| |
| request = new BasicClassicHttpRequest("GET", "/foo"); |
| |
| context = HttpCacheContext.create(); |
| |
| originResponse = HttpTestUtils.make200Response(); |
| |
| config = CacheConfig.custom() |
| .setMaxCacheEntries(MAX_ENTRIES) |
| .setMaxObjectSize(MAX_BYTES) |
| .build(); |
| |
| cache = new BasicHttpCache(config); |
| impl = new CachingExec(cache, null, config); |
| |
| executorService = new ScheduledThreadPoolExecutor(1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(originResponse); |
| Mockito.when(mockExecRuntime.fork(null)).thenReturn(mockExecRuntime); |
| } |
| |
| @AfterEach |
| public void cleanup() { |
| executorService.shutdownNow(); |
| } |
| |
| public ClassicHttpResponse execute(final ClassicHttpRequest request) throws IOException, HttpException { |
| return impl.execute( |
| ClassicRequestBuilder.copy(request).build(), |
| new ExecChain.Scope("test", route, request, mockExecRuntime, context), |
| mockExecChain); |
| } |
| |
| @Test |
| public void testConsumesErrorResponseWhenServingStale() |
| throws Exception{ |
| final Instant tenSecondsAgo = Instant.now().minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5, stale-if-error=60"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| final byte[] body101 = HttpTestUtils.makeRandomBytes(101); |
| final ByteArrayInputStream buf = new ByteArrayInputStream(body101); |
| final ConsumableInputStream cis = new ConsumableInputStream(buf); |
| final HttpEntity entity = new InputStreamEntity(cis, 101, null); |
| resp2.setEntity(entity); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| execute(req2); |
| |
| assertTrue(cis.wasClosed()); |
| } |
| |
| @Test |
| public void testStaleIfErrorInResponseYieldsToMustRevalidate() |
| throws Exception{ |
| final Instant tenSecondsAgo = Instant.now().minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5, stale-if-error=60, must-revalidate"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| final ClassicHttpResponse result = execute(req2); |
| |
| assertTrue(HttpStatus.SC_OK != result.getCode()); |
| } |
| |
| @Test |
| public void testStaleIfErrorInResponseYieldsToProxyRevalidateForSharedCache() |
| throws Exception{ |
| assertTrue(config.isSharedCache()); |
| final Instant tenSecondsAgo = Instant.now().minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5, stale-if-error=60, proxy-revalidate"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| final ClassicHttpResponse result = execute(req2); |
| |
| assertTrue(HttpStatus.SC_OK != result.getCode()); |
| } |
| |
| @Test |
| public void testStaleIfErrorInResponseYieldsToExplicitFreshnessRequest() |
| throws Exception{ |
| final Instant tenSecondsAgo = Instant.now().minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5, stale-if-error=60"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| req2.setHeader("Cache-Control","min-fresh=2"); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| final ClassicHttpResponse result = execute(req2); |
| |
| assertTrue(HttpStatus.SC_OK != result.getCode()); |
| } |
| |
| @Test |
| public void testStaleIfErrorInResponseIsFalseReturnsError() |
| throws Exception{ |
| final Instant now = Instant.now(); |
| final Instant tenSecondsAgo = now.minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5, stale-if-error=2"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| final ClassicHttpResponse result = execute(req2); |
| |
| assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, |
| result.getCode()); |
| } |
| |
| @Test |
| public void testStaleIfErrorInRequestIsFalseReturnsError() |
| throws Exception{ |
| final Instant now = Instant.now(); |
| final Instant tenSecondsAgo = now.minusSeconds(10); |
| final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest(); |
| final ClassicHttpResponse resp1 = HttpTestUtils.make200Response(tenSecondsAgo, |
| "public, max-age=5"); |
| |
| final ClassicHttpRequest req2 = HttpTestUtils.makeDefaultRequest(); |
| req2.setHeader("Cache-Control","stale-if-error=2"); |
| final ClassicHttpResponse resp2 = HttpTestUtils.make500Response(); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp1); |
| |
| execute(req1); |
| |
| Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(resp2); |
| |
| final ClassicHttpResponse result = execute(req2); |
| |
| assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, result.getCode()); |
| } |
| |
| } |