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Microsoft proxy

From: Drazen Kacar <dave@fly.cc.fer.hr>
Date: Mon, 28 Sep 1998 10:45:08 +0100 (BST)
Message-Id: <19980928114100.A23820@fly.cc.fer.hr>
To: http-wg@cuckoo.hpl.hp.com
I got this from wget maintainer. As far as I know, proxies aren't
supposed to append anything to the requested resource.
However, I've been off-line for more than a year and I haven't
digested the most recent HTTP spec. So, could someone tell
me if this is legal?

----- Forwarded message from Hrvoje Niksic <hniksic@srce.hr> -----

Sender: hniksic@public.srce.hr
To: Drazen Kacar <dave@fly.cc.fer.hr>
Subject: [Simon Munton <simonm@m4data.co.uk>] RE: wget 1.5.3 on Windows 98/NT, using MSVC 6
X-Attribution: Hrvoje
From: Hrvoje Niksic <hniksic@srce.hr>
Date: 25 Sep 1998 13:58:06 +0200
Message-ID: <kigiuicz9o1.fsf@jagor.srce.hr>
User-Agent: Gnus/5.070033 (Pterodactyl Gnus v0.33) XEmacs/21.0 (Danish Landrace)

------- Start of forwarded message -------
Message-ID: <c=GB%a=_%p=M4DATA%l=M4EXCH-980925091231Z-6978@m4exch.m4data.co.uk>
From: Simon Munton <simonm@m4data.co.uk>
To: "'Hrvoje Niksic'" <hniksic@srce.hr>
Subject: RE: wget 1.5.3 on Windows 98/NT, using MSVC 6
Date: Fri, 25 Sep 1998 10:12:31 +0100
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit

What seems to happen is this: part way through the download, there is an
error,
eg timeout, and it seems that in addition MS proxy server sends a text
string that gets put
on the end of the downloaded file. Something like:
		 "HTTP Proxy error: Connection timed out".

When wget retries, this error message gets left embedded in the
downloaded file.
So the final file looks like:

<-------Good Data--------><---HTTP Proxy error message----><-------Good
data---->

Hope this makes sense. If you'd like me to try and find out more
specific details
of what's going on, let me know. 

===========================================================
Simon Munton				simonm@m4data.co.uk
M4 Data Ltd				Tel: 44-1749-679222
Mendip court, Bath Rd, Wells			Fax: 44-1749-673928
Somerset, BA5 3DG, England

>
>> I also use wget through Microsoft Proxy server, which has a habit of
>> sending error messages which get appended to the files being
>> downloaded, and when wget retries getting the file, the downloaded
>> file ends up with these messages in the middle.  I added a couple of
>> changes to ftp.c and http.c (diffs below), so that they 'back up' by
>> 2048 bytes when retrying, thereby getting rid of the error message
>> embedded in the file.  (2048 seems to work for me).
>
>I don't understand this part.  How does the server send these error
>messages, and exactly how do they get "appended to the files"?
>
>-- 
>Hrvoje Niksic <hniksic@srce.hr> | Student at FER Zagreb, Croatia
>--------------------------------+--------------------------------
>Mix 2 table spoons sugar with 1 spoon salt.  Put it in a bottle
>and stick a fuse into it.  Say "Shit!" when it doesn't detonate.
>

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----- End forwarded message -----

-- 
 .-.   .-.    Life is a sexually transmitted disease.
(_  \ /  _)
     |        dave@fly.cc.fer.hr
     |
Received on Thursday, 1 October 1998 14:14:19 EDT

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