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Bug #64433 follow_location parameter of context is ignored for most response codes
Submitted: 2013-03-15 16:41 UTC Modified: 2013-03-31 03:07 UTC
From: akbarovs at gmail dot com Assigned:
Status: Closed Package: Streams related
PHP Version: 5.4.13 OS: Any
Private report: No CVE-ID:
 [2013-03-15 16:41 UTC] akbarovs at gmail dot com
Affected PHP versions: 5.4.12, 5.4.13, Git

The problem is that in new releases PHP ignores 'follow_location' context 
parameters for the response codes not in (300, 301, 302, 303 and 307). Problem 
is related to bugfix for bug #62524. Response codes should not be checked in the 
same condition where we check 'follow_location' parameter. And when we do that 
'follow_location' is always 1 for most response codes (ex.: 201): so we always 
redirect to the 'Location' and it cannot be changed using 'follow_location'=>0

You can see curl log for the sample resource where we combine 201 response code 
with 'Location' header:
For the test script I expect following response:
{"success": "ok"}

But when I execute it I get: {"documentId": 15} regardless to the 
follow_location parameter. I can remove it from the context parameter but I will 
continue receive wrong response.

I've attached patch for this issue. If 'follow_location' is not specified we do 
redirect for 3xx response codes. Otherwise we do not follow redirect. If 
'follow_location' is specified -> we do/do not follow redirects without checking 
response codes (if somebody really want to be redirected why we shouldn't allow 
to do it?)

BTW, I can send pull request via github if needed

Test script:
$requestXML = '';
$arr = array('http'=>
                                'content' => $requestXML

$context = stream_context_create($arr);
$f = fopen('http://localhost:8000', 'r', FALSE, $context);

echo stream_get_contents($f);

Expected result:
Expected result:
{"success": "ok"}

Actual result:
Redirected to localhost:8000?q=1 and got {"documentId": 15}


hyper-zon-a (last revision 2013-05-20 18:13 UTC) by herman dot laubscher at gmail dot com)
fopen_follow_location (last revision 2013-03-15 16:41 UTC) by akbarovs at gmail dot com)

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 [2013-03-15 17:04 UTC] akbarovs at gmail dot com
I've attached pull request for this issue:
 [2013-03-31 03:07 UTC]
-Status: Open +Status: Feedback
 [2013-03-31 03:07 UTC]
Please explain the use case for such change - why we should be following 
redirects when no redirect actually exists, as given by the response.
 [2013-03-31 04:26 UTC]
Automatic comment on behalf of sergey@terranova.(none)
Log: Fix bug #64433: does not follow redirects for non-3xx response codes
 [2013-03-31 04:26 UTC]
-Status: Feedback +Status: Closed
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