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From Jaime Hablutzel Egoavil <>
Subject Re: Wrong processing for encoding of Content-disposition 'filename' parameter
Date Tue, 12 Mar 2013 01:22:27 GMT
nothing on this?

On Fri, Mar 8, 2013 at 10:38 AM, Jaime Hablutzel Egoavil <> wrote:

> I'm looking that commons fileupload uses a 'headerEncoding' variable which
> Javadoc explanes:
> Specifies the character encoding to be used when reading the headers of
>> individual part. When not specified, or null, the request encoding is used.
>> If that is also not specified, or null, the platform default encoding is
>> used.
> Well, this headerEncoding is responsible for decoding the 'filename'
> parameter value too, but I can see that rfc1867 (the RFC you implement)
> says:
>  The original local file name may be supplied as well, either as a
>>    'filename' parameter either of the 'content-disposition: form-data'
>>    header or in the case of multiple files in a 'content-disposition:
>>    file' header of the subpart. The client application should make best
>>    effort to supply the file name; if the file name of the client's
>>    operating system is not in US-ASCII, the file name might be
>>    approximated or encoded using the method of RFC 1522.  This is a
>>    convenience for those cases where, for example, the uploaded files
>>    might contain references to each other, e.g., a TeX file and its .sty
>>    auxiliary style description.
> So the filename parameter value should not be decoded without any
> mechanism but US-ASCII  or the method described in RFC 1522 (encoded
> words), but you just decode it with a custom 'headerEncoding'. So please
> any clarification would be useful to me, why are you processing headers
> like that?
> Take a look at this issue too and see if you can reopen it:
> PS: Chrome and Firefox browsers doesn't seem to follow this spec neither
> as they encode 'filename' parameter (from a multipart/form-data) with the
> page encoding (or form accept-charset), thus producing headers with raw
> UTF-8 or any encoding choosen for the page in some cases.
> --
> Jaime Hablutzel -  RPC 987608463

Jaime Hablutzel -  RPC 987608463

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