[ http://issues.apache.org/jira/browse/MODPYTHON-40?page=all ]
     
Nicolas Lehuen reopened MODPYTHON-40:
-------------------------------------


The fix has a bug - see 
http://www.modpython.org/pipermail/mod_python/2005-November/019468.html and the 
python-dev mailing list (GMane archive are not up to date, sorry).

Alexis Marrero <[EMAIL PROTECTED]> has proposed a fix, inspired from what 
CherryPy does. I've added a few unit tests to the mix, with the help of Jim 
Gallacher who found a small file that could always break the file upload system.


> FieldStorage : don't stream file uploads to memory
> --------------------------------------------------
>
>          Key: MODPYTHON-40
>          URL: http://issues.apache.org/jira/browse/MODPYTHON-40
>      Project: mod_python
>         Type: Bug
>     Versions: 3.1.4
>     Reporter: Nicolas Lehuen
>      Fix For: 3.2

>
> In mod_python.py/util.py, line 169, we stream a file upload to disk only if 
> its Content-Disposition header features a filename attribute. Otherwise, the 
> file is streamed to memory, thus opening a potential DoS attack by uploading 
> very large files.
> We should :
> 1) Always stream file upload to disk
> 2) Define a default maximum file size which could be overridable.
> 3) Allow for the user to specify in which directory file uploads should be 
> made, with a default to a temporary directory / file.

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