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Re: WebDAV Bug?

From: Wim Lewis <wiml@omnigroup.com>
Date: Mon, 16 Dec 2013 11:52:32 -0800
Cc: Jim Schatzman <James.Schatzman@fulab.com>
Message-Id: <43051BC4-D3FC-41DE-93FF-9C2FFFC2AC15@omnigroup.com>
To: w3c-dist-auth@w3.org

On 11 Dec 2013, at 4:31 PM, ken wrote:
> On 12/09/2013 10:03 PM Jim Schatzman wrote:
>> Can anyone explain the following behavior and how to fix it?
>> 
>> I am running WebDAV with Apache2 version 2.2.15.
>> 
>> I take a tgz file and split it. The files are named
>> 
>> test_xaa  test_xab test_xac etc.
>> 
>> I then attempt to download the files through a browser. I have tried several browsers and the result is always the same.
> [....]
> 
> I'm guessing that the problem isn't with apache or webdav, but rather wtih the browser.  Check its settings -> applications to see if some app is automatically unzipping the first file, test_xaa.

Do you have mod_mime_magic enabled? My guess is that the following is happening:

- Apache cannot assign a MIME-type based on file extension or filesystem metadata, since neither of those exist for this file.
- Apache (via mod_mime_magic) looks at the first few bytes of the file to determine its MIME-type, and discovers that it's tar+gzip or maybe just gzip.
- Client is given this information in the response.
- Client (possibly in concert with the OS) has some behavior to automatically un-gzip downloaded files. (Possibly due to the near-universal confusion between content-encoding and transfer-encoding.)
Received on Monday, 16 December 2013 19:53:01 UTC

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