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From Walter.Heesterm...@toyota-europe.com
Subject Re: Tomcat and "Chunked Transfer-Encoding"
Date Mon, 03 Feb 2014 11:31:15 GMT
Here the text format of the traffic

GET 
/ws/ws_ext?servlet=upload_file_project_attributes&fileAttr=CompletedDTPCaptionKit&project=30452&token=1358616358&random=0.5308450920567584

HTTP/1.1
Host: td3worldserverlb.toyota-europe.com
Accept: text/html, application/xhtml+xml, */*
Accept-Language: nl-NL
User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; 
Trident/6.0)
Accept-Encoding: gzip, deflate
DNT: 1
Cookie: ACE_COOKIE=R660302447; TD3World=R760446058
SM_TRANSACTIONID: 
=?UTF-8?B?MGE2NDA2MDEtNDAzMy01MjdjYzlkMy0wMDBhLTJjMWI0NjJi?=
SM_AUTHTYPE: =?UTF-8?B?QXV0bw==?=
SM_SDOMAIN: =?UTF-8?B?LnRveW90YS1ldXJvcGUuY29t?=
X-Forwarded-For: 77.60.99.113
X-Forwarded-Host: mytechdoc.toyota-europe.com
X-Forwarded-Server: mytechdoc.toyota-europe.com
Connection: Keep-Alive

7a5
<html>
<head>
<title>Idiom WorldServer - File Upload Page</title>
<link rel='stylesheet' href='style.css' type='text/css'>
<script language=JavaScript src='general.js'></script>
<script language=JavaScript src='ips.js'></script>
<script language=JavaScript 
src='ws_ext?servlet=include_proxy&fileName=ips.js&token=1358616358'></script>
<script 
language=JavaScript>location.href=location.href+'&customopenertoken='+ 
getOpenerToken();</script>
</head>

<body onload="requestFocus('uploadedFile')">
<form style="width:100%; height: 100%" method=post>
<table width="100%" height="100%" cellpadding=5><tr height="1%"><td 
class=popup_dialog_header>File Upload</td></tr><tr height="100%"><td

valign=top>
<i>Click on Browse button to browse and select the file to upload. 
</i><p><input name="uploadedFile"  value=""  type="file" ><input 
name="fileAttr"  value="CompletedDTPCaptionKit"  type="hidden" ><input 
name="token"  value="1358616358"  type="hidden" ><input name="nextStep" 
value="upload"  type="hidden" >
 <script language=Javascript>
  document.forms[0].encoding='multipart/form-data';
 </script>
</td></tr>
<tr height="1%"><td><input name="ok"  value="&nbsp;&nbsp;OK&nbsp;&nbsp;"

onclick="javascript: disabled=1; doSubmit('ok');"  type="button" 
>&nbsp;<input name="cancel"  value="Cancel"  onclick="self.close();" 
type="button" ></td></tr></table><script 
language=javascript>self.focus()</script><input type=hidden 
name=formAction 
value="ws_ext?servlet=upload_file_project_attributes&amp;fileAttr=CompletedDTPCaptionKit&amp;project=30452&amp;token=1358616358&amp;random=6674">
<input type=hidden name=submittedBy value="">
<input type=hidden name=methodUsed value=GET>
<script language="javascript">
function doSubmit(name) {
 document.forms[0].action=document.forms[0].formAction.value;
 document.forms[0].target='_self';
 document.forms[0].submittedBy.value=name;
 document.forms[0].submit();
}
</script>
</form>
</body>
</html>

0

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Transfer-Encoding: chunked
Date: Fri, 08 Nov 2013 11:24:05 GMT

45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>
45
. <script language=javascript>window.scrollTo(0, 100000000);</script>

Walter




From:   Mark Thomas <markt@apache.org>
To:     Tomcat Users List <users@tomcat.apache.org>, 
Date:   03/02/2014 12:10
Subject:        Re: Tomcat and "Chunked Transfer-Encoding"



On 03/02/2014 10:47, Walter.Heestermans@toyota-europe.com wrote:
> Hi,
> 
> I have requested the trext format. In the meantime, how can I disable 
the 
> 'Chunked Transfer-Encoding' inside Tomcat server?

You can't.

Mark


> 
> Regards
> Walter
> 
> 
> 
> 
> From:   Mark Thomas <markt@apache.org>
> To:     Tomcat Users List <users@tomcat.apache.org>, 
> Date:   03/02/2014 11:15
> Subject:        Re: Tomcat and "Chunked Transfer-Encoding"
> 
> 
> 
> On 03/02/2014 09:34, Walter.Heestermans@toyota-europe.com wrote:
>> Hi,
>>
>> We have some weird behaviopur with one of our applications using
>> apache-tomcat-6.0.37.
>>
>> This is the report of the newtork engineer:
>> /The application (or app server - apache/coyote) is returning a 
response
>> with "Chunked Transfer-Encoding", but is sending the first chunks 
before
>> giving the http headers (that defines the chunk-encoding).
> 
> That strikes me as pretty unlikely given the length of time 6.0.x has
> been released and the lack of similar reports.
> 
> It may be possible if the application is doing something it shouldn't,
> like holding on to a reference to a response object and re-using it
> across multiple requests.
> 
>> The result is that the client receives a response stating by the
>> definition on the chunk lenght (7a5), and as the header
>> "Content-Encoding" has not been received, that length definition is
>> interpreted as response characters.
>>
>> Here is a dump of the communication between TARS Reverse Proxy and the
>> Back-end. (You may notice the response headers - 200 OK - after the
>> first chunk (in blue, starting by "7a5", the length in HEX )/
>>
>>
>> See attached screenshot tcpstream.jpg.
> 
> This list strips most attachments. Just put the plain text of the HTTP
> request and response headers in the body of your e-mail.
> 
> Mark
> 
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