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From Stefan Magnus Landrø <stefan.lan...@gmail.com>
Subject Re: [users@httpd] Problem with mod_proxy and chunked content
Date Mon, 17 Nov 2014 09:58:54 GMT
I'd try to make the backend generate a valid http response instead. What
kind of web-server is it?

Stefan

2014-11-17 10:50 GMT+01:00 Blomme Dieter <Dieter.Blomme@digipolis.be>:

> We have fixed this problem temporarily. What I've noticed is that the
> header isn't there and inserting it (e.g. with burp or fiddler), fixes the
> problem. I've then tried to insert the header in the vhost that acts as a
> proxy, but the header didn't appear. I think that mod_proxy strips that
> header as the last part of the request.
>
> We've now fixed the problem by making sure our load balancer enforces http
> 1.0 for the requests that were problematic. Later on we'll take another
> look at this problem when we have more time.
>
> Thans Stefan for the hint! ;)
>
> kind regards,
>
> On 13 Nov 2014, at 19:08, Blomme Dieter <Dieter.Blomme@digipolis.be>
> wrote:
>
> > Yes, but I thought that if that header is missing, it should still check
> if the data is chunked, is that incorrect?
> >
> >> On 13 Nov 2014, at 18:52, Stefan Magnus Landrø <stefan.landro@gmail.com>
> wrote:
> >>
> >> The transfer encoding header is missing, right?
> >>
> >> Sendt fra min iPhone
> >>
> >>> Den 13. nov. 2014 kl. 18.13 skrev Blomme Dieter <
> Dieter.Blomme@digipolis.be>:
> >>>
> >>> Hi,
> >>>
> >>> We have a problem with mod_proxy and chunked content.
> >>> We use mod_proxy to selectively request pages from a second site, the
> ProxyPass and ProxyPassReverse statements are in the vhost file. Nearly all
> requests are OK, Except for one type of request which can't be handled
> properly. We use SAML SSO and upon logging out, the response from a
> simplesaml service provider is not correct. It is chunked, but is not
> parseable. The problem is the chunk part within the SAML Response. This is
> also visible in the response (see below). I have googled this and searched
> Apache's bugzilla, but there is no solution I've tried that works.
> >>> Not forcing http1.0, sendcl, ...
> >>>
> >>> Can anybody please help with this issue?
> >>>
> >>> Thanks very much in advance!
> >>>
> >>>
> >>> HTTP/1.1 200 OK
> >>> Date: Thu, 13 Nov 2014 16:23:02 GMT
> >>> Server: Apache/2.2.15 (Red Hat)
> >>> X-Powered-By: PHP/5.3.3
> >>> X-Robots-Tag: noindex,noarchive
> >>> Content-Type: text/html; charset=UTF-8
> >>> X-Robots-Tag: noindex,noarchive
> >>> Keep-Alive: timeout=5, max=100
> >>> Connection: Keep-Alive
> >>> Vary: Accept-Encoding
> >>> Content-Length: 7460
> >>>
> >>> 132
> >>> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
> >>>      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
> >>> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
> >>> <head>
> >>>  <meta http-equiv="content-type" content="text/html; charset=utf-8"
> /><script type="text/javascript">
> >>> 36d
> >>> window.NREUM||(NREUM={}),__nr_require=function(t,e,n){function
> r(n){if(!e[n]){var
> o=e[n]={exports:{}};t[n][0].call(o.exports,function(e){var
> o=t[n][1][e];return r(o?o:e)},o,o.exports)}return
> e[n].exports}if("function"==typeof __nr_require)return __nr_require;for(var
> o=0;o<n.length;o++)r(n[o]);return r}({QJf3ax:[function(t,e){function
> n(t){function e(e,n,a){t&&t(e,n,a),a||(a={});for(var
> c=u(e),f=c.length,s=i(a,o,r),p=0;f>p;p++)c[p].apply(s,n);return s}function
> a(t,e){f[t]=u(t).concat(e)}function u(t){return f[t]||[]}function
> c(){return n(e)}var
> f={};return{on:a,emit:e,create:c,listeners:u,_events:f}}function
> r(){return{}}var o="nr@context",i=t("gos");e.exports=n()},{gos:"7eSDFh"}],ee:[function(t,e){e.exports=t("QJf3ax")},{}],gos:[function(t,e){e.exports=t("7eSDFh")},{}],"7eSDFh":[function(t,e){function
> n(t,e,n){if(r.call(t,e))return t[e];var o=n();if(Object.definePr
> >>> 5a8
> >>> operty&&Object.keys)try{return
> Object.defineProperty(t,e,{value:o,writable:!0,enumerable:!1}),o}catch(i){}return
> t[e]=o,o}var
> r=Object.prototype.hasOwnProperty;e.exports=n},{}],D5DuLP:[function(t,e){function
> n(t,e,n){return r.listeners(t).length?r.emit(t,e,n):(o[t]||(o[t]=[]),void
> o[t].push(e))}var r=t("ee").create(),o={};e.exports=n,n.ee=r,r.q=o},{ee:"QJf3ax"}],handle:[function(t,e){e.exports=t("D5DuLP")},{}],XL7HBI:[function(t,e){function
> n(t){var e=typeof
> t;return!t||"object"!==e&&"function"!==e?-1:t===window?0:i(t,o,function(){return
> r++})}var r=1,o="nr@id",i=t("gos");e.exports=n},{gos:"7eSDFh"}],id:[function(t,e){e.exports=t("XL7HBI")},{}],loader:[function(t,e){e.exports=t("G9z0Bl")},{}],G9z0Bl:[function(t,e){function
> n(){var t=l.info
> =NREUM.info;if(t&&t.agent&&t.licenseKey&&t.applicationID&&c&&c.body){l.proto="https"===p.split(":")[0]||t.sslForHttp?"https://
> ":"http://",a("mark",["onload",i()]);var
> e=c.createElement("script");e.src=l.proto+t.agent,c.body.appendChild(e)}}function
> r(){"complete"===c.readyState&&o()}function
> o(){a("mark",["domContent",i()])}function i(){return(new
> Date).getTime()}var
> a=t("handle"),u=window,c=u.document,f="addEventListener",s="attachEvent",p=(""+location).split("?")[0],l=e.exports={offset:i(),origin:p,features:{}};c[f]?(c[f]("DOMContentLoaded",o,!1),u[f]("load",n,!1)):(c[s]("onreadystatechange",r),u[s]("onload",n)),a("mark",["firstbyte",i()])},{handle:"D5DuLP"}]},{},["G9z0Bl"]);</script>
> >>>  <t
> >>> 27c
> >>> itle>POST data</title>
> >>> </head>
> >>> <body onload="document.getElementsByTagName('input')[0].click();">
> >>>
> >>>  <noscript>
> >>>      <p><strong>Note:</strong> Since your browser does
not support
> JavaScript, you must press the button below once to proceed.</p>
> >>>  </noscript>
> >>>
> >>>  <form method="post" action="
> https://qa.aether.gent.be/saml/idp/profile/post/slr">
> >>>  <!-- Need to add this element and call click method, because calling
> submit()
> >>>  on the form causes failed submission if the form has another element
> with name or id of submit.
> >>>  See: https://developer.mozilla.org/en/DOM/form.submit#Specification
> -->
> >>>  <input type="submit" style="display:none;" />
> >>>
> >>> 8d4
> >>> <input type="hidden" name="SAMLResponse" value="
> >>> <<<First part of samlresponse>>>>
> >>> 75e
> >>> <<<Second part of samlresponse>>>>
> >>> " />
> >>>      <noscript>
> >>>          <input type="submit" value="Submit" />
> >>>      </noscript>
> >>>  </form>
> >>>
> >>> <<<<removed content>>>>>
> >>> 0
> >>>
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >>> For additional commands, e-mail: users-help@httpd.apache.org
> >>>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >> For additional commands, e-mail: users-help@httpd.apache.org
> >>
> >
> >
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>


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