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From "Francois-Xavier Bonnet (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HTTPCLIENT-1277) CachingHttpClient sends a 304 Not Modified to an unconditional request
Date Fri, 14 Dec 2012 14:00:13 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Francois-Xavier Bonnet updated HTTPCLIENT-1277:
-----------------------------------------------

    Attachment: HTTPCLIENT-1277.txt

Here is the patch with the fixes and unit test.
                
> CachingHttpClient sends a 304 Not Modified to an unconditional request
> ----------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1277
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1277
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Cache
>    Affects Versions: 4.2.2, Snapshot
>            Reporter: Francois-Xavier Bonnet
>         Attachments: HTTPCLIENT-1277.txt
>
>
> When sending a conditional request, CachingHttpClient can cache the 304 response depending
on the response headers. Then when sending an unconditional request, the 304 cached is reused.
> In method org.apache.http.impl.client.cache.CachedResponseSuitabilityChecker.canCachedResponseBeUsed(HttpHost,
HttpRequest, HttpCacheEntry, Date) there is not test to check if the cached response is a
304 when the request is unconditional.
> Here is a unit test that is broken:
> 	@Test
> 	public void testDoesNotSend304ForNonConditionalRequest() throws Exception {
> 		Date now = new Date();
> 		Date inOneMinute = new Date(System.currentTimeMillis()+60000);
> 		impl = new CachingExec(mockBackend, new BasicHttpCache(),CacheConfig.DEFAULT);
> 		HttpRequestWrapper req1 = HttpRequestWrapper.wrap(new HttpGet("http://foo.example.com/"));
> 		req1.addHeader("If-None-Match", "etag");
> 		HttpRequestWrapper req2 = HttpRequestWrapper.wrap(new HttpGet("http://foo.example.com/"));
> 		HttpResponse resp1 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_NOT_MODIFIED,
"Not modified");
> 		resp1.setHeader("Date", DateUtils.formatDate(now));
> 		resp1.setHeader("Cache-Control","public, max-age=60");
> 		resp1.setHeader("Expires",DateUtils.formatDate(inOneMinute));
> 		resp1.setHeader("Etag", "etag");
> 		resp1.setHeader("Vary", "Accept-Encoding");
> 		HttpResponse resp2 = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK,
"Ok");
> 		resp2.setHeader("Date", DateUtils.formatDate(now));
> 		resp2.setHeader("Cache-Control","public, max-age=60");
> 		resp2.setHeader("Expires",DateUtils.formatDate(inOneMinute));
> 		resp2.setHeader("Etag", "etag");
> 		resp2.setHeader("Vary", "Accept-Encoding");
> 		resp2.setEntity(HttpTestUtils.makeBody(128));
> 		backendExpectsAnyRequestAndReturn(resp1);
> 		backendExpectsAnyRequestAndReturn(resp2).anyTimes();
> 		replayMocks();
> 		HttpResponse result1 = impl.execute(route, req1);
> 		HttpResponse result2 = impl.execute(route, req2);
> 		verifyMocks();
> 		assertEquals(HttpStatus.SC_NOT_MODIFIED, result1.getStatusLine().getStatusCode());
> 		assertNull(result1.getEntity());
> 		assertEquals(HttpStatus.SC_OK, result2.getStatusLine().getStatusCode());
> 		Assert.assertNotNull(result2.getEntity());
> 	}

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