Re: [squid-users] NONE/411 Length Required

Weird. The code that I'm assuming generates the 411 is (squid2-HEAD):

        if (!clientCheckContentLength(request) || httpHeaderHas(&request-
>header, HDR_TRANSFER_ENCODING)) {
            err = errorCon(ERR_INVALID_REQ, HTTP_LENGTH_REQUIRED, request);
            http->al.http.code = err->http_status;
            http->log_type = LOG_TCP_DENIED;
            http->entry = clientCreateStoreEntry(http, request->method,
null_request_flags);
            errorAppendEntry(http->entry, err);
            return -1;
        }

but clientCheckContentLength doesn't look like it's triggering it:

static int
clientCheckContentLength(request_t * r)
{
     switch (r->method->code) {
     case METHOD_GET:
     case METHOD_HEAD:
        /* We do not want to see a request entity on GET/HEAD requests */
        return (r->content_length <= 0 || Config.onoff.request_entities);
     default:
        /* For other types of requests we don't care */
        return 1;
     }
     /* NOT REACHED */
}

because the request method is POST. However, the request headers don't
have Transfer-Encoding...

What am I missing? I know Bijayant is using Squid-3, but I'm observing
the same behaviour in my build of 2...

On 17/06/2009, at 4:00 PM, Mark Nottingham wrote:

> [ moving to squid-dev ]
>
> From what I can see, the site is using JavaScript to do autocomplete
> on a search field. The autocomplete requests use POST, but without a
> body.
>
> With Firefox, this results in a POST request without a body; i.e.,
> it doesn't have transfer-encoding *or* content-length.
>
> Such a POST request is legal (although atypical; Safari and I think
> others will include a Content-Length: 0 to signal no body
> explicitly). See <http://tools.ietf.org/html/draft-ietf-httpbis-p1-messaging-06#section-4.3
> >.
>
> I think the right thing to do here is for Squid to only 411 when
> there's a transfer-encoding present; if there's no content-length,
> it's safe to assume 0 length.
>
> Cheers,
>
>
> On 17/06/2009, at 2:07 PM, Bijayant Kumar wrote:
>
>>
>> Bijayant Kumar
>>
>>
>> --- On Mon, 15/6/09, Bijayant Kumar <bijayant4u_at_yahoo.com> wrote:
>>
>>> From: Bijayant Kumar <bijayant4u_at_yahoo.com>
>>> Subject: Re: [squid-users] NONE/411 Length Required
>>> To: "squid users" <squid-users_at_squid-cache.org>
>>> Date: Monday, 15 June, 2009, 6:48 PM
>>>
>>>
>>> --- On Mon, 15/6/09, Amos Jeffries <squid3_at_treenet.co.nz>
>>> wrote:
>>>
>>>> From: Amos Jeffries <squid3_at_treenet.co.nz>
>>>> Subject: Re: [squid-users] NONE/411 Length Required
>>>> To: "Bijayant Kumar" <bijayant4u_at_yahoo.com>
>>>> Cc: "squid users" <squid-users_at_squid-cache.org>
>>>> Date: Monday, 15 June, 2009, 6:06 PM
>>>> Bijayant Kumar wrote:
>>>>> Hello list,
>>>>>
>>>>> I have Squid version 3.0.STABLE 10 installed on
>>> Gentoo
>>>> linux box. All things are working fine, means caching
>>>> proxying etc. There is a problem with some sites. When
>>> I am
>>>> accessing one of those sites, in access.log I am
>>> getting
>>>>>
>>>>> NONE/411 3692 POST http://wwww.justdial.com/autosuggest_category_query_main.php?
>>>> - NONE/- text/html
>>>>>
>>>>> And on the webpage I am getting whole error page
>>> of
>>>> squid. Actually its a search related page. In the
>>> search
>>>> criteria field as soon as I am typing after two words
>>> I am
>>>> getting this error. The website in a question is "http://justdial.com
>>>> ". But it works without the Squid.
>>>>>
>>>>>
>>>>> I tried to capture the http headers also which
>>> are as
>>>> below
>>>>>
>>>>> http://wwww.justdial.com/autosuggest_category_query_main.php?city=Bangalore&search=Ka
>>>>>
>>>>>
>>>>>
>>>>> POST
>>>>
>>> /autosuggest_category_query_main.php?city=Bangalore&search=Ka
>>>> HTTP/1.1
>>>>>
>>>>> Host: wwww.justdial.com
>>>>>
>>>>> User-Agent: Mozilla/5.0 (X11; U; Linux i686;
>>> en-US;
>>>> rv:1.8.1.16) Gecko/20080807 Firefox/2.0.0.16
>>>>>
>>>>> Accept:
>>>>
>>> text/xml,application/xml,application/xhtml+xml,text/
>>> html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
>>>>>
>>>>> Accept-Language: en-us,en;q=0.7,hi;q=0.3
>>>>>
>>>>> Accept-Encoding: gzip,deflate
>>>>>
>>>>> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>>>>>
>>>>> Keep-Alive: 300
>>>>>
>>>>> Connection: keep-alive
>>>>>
>>>>> Referer: http://wwww.justdial.com/
>>>>>
>>>>> Cookie:
>>> PHPSESSID=d1d12004187d4bf1f084a1252ec46cef;
>>>>
>>> __utma=79653650.2087995718.1245064656.1245064656.1245064656.1;
>>>> __utmb=79653650; __utmc=79653650;
>>>>
>>> __utmz=79653650.1245064656.1.1.utmccn=(direct)|utmcsr=(direct)|
>>> utmcmd=(none);
>>>> CITY=Bangalore
>>>>>
>>>>> Pragma: no-cache
>>>>>
>>>>> Cache-Control: no-cache
>>>>>
>>>>>
>>>>>
>>>>> HTTP/1.x 411 Length Required
>>>>>
>>>>> Server: squid/3.0.STABLE10
>>>>>
>>>>> Mime-Version: 1.0
>>>>>
>>>>> Date: Mon, 15 Jun 2009 11:18:10 GMT
>>>>>
>>>>> Content-Type: text/html
>>>>>
>>>>> Content-Length: 3287
>>>>>
>>>>> Expires: Mon, 15 Jun 2009 11:18:10 GMT
>>>>>
>>>>> X-Squid-Error: ERR_INVALID_REQ 0
>>>>>
>>>>> X-Cache: MISS from bijayant.kavach.blr
>>>>>
>>>>> X-Cache-Lookup: NONE from
>>> bijayant.kavach.blr:3128
>>>>>
>>>>> Via: 1.0 bijayant.kavach.blr
>>> (squid/3.0.STABLE10)
>>>>>
>>>>> Proxy-Connection: close
>>>>>
>>>>> Please suggest me what could be the reason and
>>> how to
>>>> resolve this. Any help/pointer can be a very helpful
>>> for me.
>>>>
>>>>>
>>>>> Bijayant Kumar
>>>>>
>>>>>
>>>>> Get your new
>>> Email
>>>> address!
>>>>> Grab the Email name you've always wanted before
>>>> someone else does!
>>>>> http://mail.promotions.yahoo.com/newdomains/aa/
>>>>
>>>>
>>>> NONE - no upstream source.
>>>> 411 - "Content-Length missing"
>>>>
>>>> HTTP requires a Content-Length: header on POST
>>> requests.
>>>>
>>>
>> How to resolve this issue. Because the website is on internet and
>> its working fine without the squid. When I am bypassing the proxy,
>> I am not getting any type of error.
>>
>> Can't this website be accessed through the Squid?
>>>
>>>> Amos
>>>> -- Please be using
>>>> Current Stable Squid 2.7.STABLE6 or
>>> 3.0.STABLE15
>>>> Current Beta Squid 3.1.0.8 or
>>> 3.0.STABLE16-RC1
>>>>
>>>
>>>
>>> New Email addresses available on
>>> Yahoo!
>>> Get the Email name you've always wanted on the new
>>> @ymail and @rocketmail.
>>> Hurry before someone else does!
>>> http://mail.promotions.yahoo.com/newdomains/aa/
>>>
>>
>>
>> Get your new Email address!
>> Grab the Email name you&#39;ve always wanted before someone else
>> does!
>> http://mail.promotions.yahoo.com/newdomains/aa/
>
> --
> Mark Nottingham mnot_at_yahoo-inc.com
>
>

--
Mark Nottingham       mnot_at_yahoo-inc.com