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From "Ryan Stewart (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-928) Can't get list of redirect locations
Date Thu, 01 Apr 2010 00:10:27 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852186#action_12852186
] 

Ryan Stewart commented on HTTPCLIENT-928:
-----------------------------------------

Yes, I did consider that. The DefaultRedirectHandler does everything almost exactly right,
and it's not an easily extensible class. At a glance, the method it occurs in--getLocationURI--looks
to have a complexity of about 20. It would be painful and unnecessary to duplicate and maintain
all that code just for this one change. 

> Can't get list of redirect locations
> ------------------------------------
>
>                 Key: HTTPCLIENT-928
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-928
>             Project: HttpComponents HttpClient
>          Issue Type: Improvement
>          Components: HttpClient
>    Affects Versions: 4.0.1
>            Reporter: Ryan Stewart
>
> HttpClient does a great job of following redirects, but afterward there doesn't seem
to be any way to see the URLs that it followed in the redirect chain. They are stored internally
by the DefaultRedirectHandler in the HttpContext in an attribute named "http.protocol.redirect-locations",
but the RedirectLocations object that contains them stores them in a Set, so there's no way
of knowing in what order the URLs were visited.
> Here's an example of why I need it:
> 1) Use HttpClient to retrieve http://foo.com
> 2) http://foo.com returns a 301 redirect to http://foo.com/bar, so HttpClient follows
the redirect and returns the page to me
> 3) http://foo.com/bar refers to a relative resource like "baz.html".
> That relative resource should resolve to "http://foo.com/bar/baz.html". I only know that,
though, if I can look at the redirect URL that HttpClient got in step 2. Currently, I don't
seem to be able to do that.

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