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From "Dariusz Kordonski (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1716) DefaultRedirectStrategy seems to disregard HTTP spec for PUT/POST/DELETE request redirects
Date Thu, 28 Jan 2016 04:30:39 GMT
Dariusz Kordonski created HTTPCLIENT-1716:
---------------------------------------------

             Summary: DefaultRedirectStrategy seems to disregard HTTP spec for PUT/POST/DELETE
request redirects
                 Key: HTTPCLIENT-1716
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1716
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpClient
    Affects Versions: 5.0 Alpha1
            Reporter: Dariusz Kordonski


Observed on {{trunk}} branch that has 5.0-alpha2-SNAPSHOT mvn version.

The docs for {{DefaultRedirectStrategy}} correctly state:

{quote}
his strategy honors the restrictions on automatic redirection of entity enclosing methods
such as POST and PUT imposed by the HTTP specification. {@code 302 Moved Temporarily}, {@code
301 Moved Permanently} and {@code 307 Temporary Redirect} status codes will result in an automatic
redirect of HEAD and GET methods only. POST and PUT methods will not be automatically redirected
as requiring user confirmation.
{quote}

(NB: in fact to be more precise I think DELETE requests should also be **not** automatically
redirected)

However the actual implementation does not seem to follow this, whereby {{isRedirected}} pretty
much lets all requests through:

{code}
switch (statusCode) {
            case HttpStatus.SC_MOVED_PERMANENTLY:
            case HttpStatus.SC_MOVED_TEMPORARILY:
            case HttpStatus.SC_SEE_OTHER:
            case HttpStatus.SC_TEMPORARY_REDIRECT:
                return true;
            default:
                return false;
        }
{code}

A simple failing test case that confirms the problem for a PUT request resulting with 302
(PUT should only be redirected automatically for 303):

{code}
    @Test
    public void testIsRedirectedForTemporaryRedirectPut() throws Exception {
        final DefaultRedirectStrategy redirectStrategy = new DefaultRedirectStrategy();
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1,
                HttpStatus.SC_TEMPORARY_REDIRECT, "Temporary Redirect");
        response.addHeader("Location", "http://localhost/stuff");
        final HttpContext context = new BasicHttpContext();
        assertFalse(redirectStrategy.isRedirected(new HttpPut("http://localhost/"), response,
context));
    }
{code}



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