[Zope] FileUpload get_size() method?

Jonathan Cyr cyrj at cyr.info
Tue Oct 25 16:42:05 EDT 2005


I think I get it, except...

What's the meaning of 1<<20, I'm not familar with that operator.  How 
would I adjust it for different sizes? 

... as I instantly regret blowing-off bit operators, as "something I 
wont need"...

-Jon

Tino Wildenhain wrote:

>Am Dienstag, den 25.10.2005, 14:43 -0400 schrieb Jonathan Cyr:
>  
>
>>Hello,
>>
>>Does a FileUpload object have a get_size() method?
>>
>>I'd like to limit the size of an uploaded file before commiting it to 
>>the ZODB.  I've been Googling for a while.  Is it handled differently on 
>>a FileUpload object.
>>
>>I'm planning to process with a Python Script.
>>
>>Could someone point me in the right direction?
>>    
>>
>
>The fileupload object is simply a file. (can be cStringIO, 
>can be tempfile - depending on size)
>
>Best is to do so:
>
>maxsize=1<<20 # 1MB
>
>fu=context.REQUEST.get('fileupload') 
>fu.seek(maxsize)
>
>if fu.read(1):
>    raise OverflowError("File too big!") # or something like that
>
>fu.seek(0) # rewind to start
>
>filefolder.manage_addFile(...)
>
>
>This avoids loading the whole file into memory to find out.
>
>HTH
>Tino
>
>
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-- 
Jonathan Cyr
cyrj at cyr.info

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