Re: [libmicrohttpd] MHD_PostDataIterator issue

[Ovidiu Sas]

Hi,

After paying more attention to my logs, I realized that it's still not working.
I got tricked by the fact that the post iterator is run during it's destruction.

In my application I see hat the MHD_post_process is called with
upload_data_size=4 (which is 'arg=') but the post iterator callback
function is never called from within the library.
Then after the reply is sent and the MHD_destroy_post_processor is
called, the post iterator callback is invoked (and here I got tricked
previously thinking that it's working).


Regards,
Ovidiu Sas


On Wed, Feb 6, 2013 at 11:08 AM, Ovidiu Sas <address@hidden> wrote:
> Hmm ..., I checked the archive before posting but it seems that I
> missed that report.
> Anyway, I tested the new release and everything seems to be working fine.
>
> Thanks,
> Ovidiu
>
> On Tue, Feb 5, 2013 at 7:53 PM, Christian Grothoff <address@hidden> wrote:
>> Dear Ovidiu,
>>
>> The issue was discussed on this list a few days ago and fixed Feb 1st.
>>
>> I've now released GNU libextractor 0.9.25 with the fix.
>>
>>
>> Happy hacking!
>>
>> Christian
>>
>> On 02/05/2013 10:31 PM, Ovidiu Sas wrote:
>>> Hello all,
>>>
>>> I'm trying to use the library to handle simple POST requests.
>>> During the implementation, I discovered an issue: if the post request
>>> has one single key with no value, the MHD_PostDataIterator is not
>>> invoked.
>>> Here's an example of such post:
>>> POST /mi/core/uptime HTTP/1.1.
>>> Host: 192.168.2.60.
>>> User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 
>>> Firefox/18.0.
>>> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8.
>>> Accept-Language: en-US,en;q=0.5.
>>> Accept-Encoding: gzip, deflate.
>>> DNT: 1.
>>> Referer: http://192.168.2.60/mi/core/uptime.
>>> Connection: keep-alive.
>>> Content-Type: application/x-www-form-urlencoded.
>>> Content-Length: 4.
>>> .
>>> arg=
>>>
>>> The following post request is properly processed (MHD_PostDataIterator
>>> is invoked):
>>> POST /mi/core/uptime HTTP/1.1.
>>> Host: 192.168.2.60.
>>> User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 
>>> Firefox/18.0.
>>> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8.
>>> Accept-Language: en-US,en;q=0.5.
>>> Accept-Encoding: gzip, deflate.
>>> DNT: 1.
>>> Referer: http://192.168.2.60/mi/core/uptime.
>>> Connection: keep-alive.
>>> Content-Type: application/x-www-form-urlencoded.
>>> Content-Length: 8.
>>> .
>>> arg=blah
>>>
>>>
>>> I am using the library in single threaded mode (MHD_NO_FLAG) with select.
>>> The version that I tested is 0.9.24.
>>> The library is integrated into the opensips project and it is handling
>>> GET requests.
>>> http://opensips.svn.sourceforge.net/viewvc/opensips/trunk/modules/httpd/
>>> I am looking to add POST request handling.
>>>
>>> I haven't check the libmicrohttpd source code yet ... just wanted to
>>> know first if this is a known issue.
>>>
>>>
>>> Regards,
>>> Ovidiu Sas