Data attached to POST request is gone during redirection to GET with CURL

Question

I wrote followed command to send POST with JSON data to server. The server must redirect my request and send GET with the same data:

curl  -L -i -XPOST \
     -d 'id=105' \
     -d 'json={"orderBy":0,"maxResults":50}'  http://mysite.com/ctlClient/

I get response:

HTTP/1.1 302 Found
Date: Thu, 04 Jul 2013 13:12:08 GMT
Server: Apache
X-Powered-By: PHP/5.3.19
Set-Cookie: PHPSESSID=1hn0g8d7gtfl4nghjvab63btmk2; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
location: http://mysite.com/fwf/online/
Content-Length: 0
Connection: close
Content-Type: text/html

HTTP/1.1 200 OK
Date: Thu, 04 Jul 2013 13:12:08 GMT
Server: Apache
X-Powered-By: PHP/5.3.19
Set-Cookie: PHPSESSID=16akc7kdcoet71ipjflk9o9cnm5; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 1
Connection: close
Content-Type: text/html

From access-log I see:

 "POST /ctlClient/ HTTP/1.1" 302 - "-" "Apache-HttpClient/4.1 (java 1.5)"
 "GET /fwf/online/ HTTP/1.1" 200 1 "-" "Apache-HttpClient/4.1 (java 1.5)"

So far so good,

The problem is that GET doesn't receives my data added to post. Sounds like during redirect my data dismissed somehow. From Android client it works, therefore its not Server side problem.

What I need to do to pass POST data to GET request?

Thank you very much,

[EDIT]

@nif offerd to upgrade CURL, i did , to 7.28.0.

Still get the same problem

[INFO]

1st time i go to http://mysite.com/ctlClient/index.php where:

 case 105: // id=105
        session_unset();
        session_start();
        foreach($_POST as $key => $value){$_SESSION[$key] = $value;}
        ctlGotoSameDomain("/fwf/online/"); // <- aka redirect
        return true;

after redirect i go to /fwf/online/index.php and there my request is empty:

public function __construct() {
        $this->json = isset($_SESSION['json']) ? $_SESSION['json'] : null;
        msqLogFile("fwf/post", Array('post' => 'Request: '.$this->json));

    }

http://mysite.com/ctlClient/index.php get 2 parameters properly: id and json

Answer 1

From curl's manpage:

When curl follows a redirect and the request is not a plain GET (for example POST or PUT), it will do the following request with a GET if the HTTP response was 301, 302, or 303. If the response code was any other 3xx code, curl will re-send the following request using the same unmodified method.

Edit

I did some research and found out, that it might be a problem with your curl version. Newer version will honour the -XPOST option and will POST to the redirected location as well. But older versions had an own option for this, i.e. --post301 and --post302. According to their manpage:

--post301 Tells curl to respect RFC 2616/10.3.2 and not convert POST requests into GET requests when following a 301 redirection. The non-RFC behaviour is ubiquitous in web browsers, so curl does the conversion by default to maintain consistency. However, a server may require a POST to remain a POST after such a redirection. This option is meaningful only when using -L, --location (Added in 7.17.1)

--post302 Tells curl to respect RFC 2616/10.3.2 and not convert POST requests into GET requests when following a 302 redirection. The non-RFC behaviour is ubiquitous in web browsers, so curl does the conversion by default to maintain consistency. However, a server may require a POST to remain a POST after such a redirection. This option is meaningful only when using -L, --location (Added in 7.19.1)

References:

• Following redirects with curl
• HTTP RFC