[Zope] Returning a zip file (downloaded by user)??

[Chris Meyers]

On Tue, Jul 30, 2002 at 01:01:03AM -0700, Aseem Mohanty wrote:
> Hi,
> I have a zip file that I create on the fly which is to be returned to 
> the user. The process goes like this:
> 
> 1. User clicks on a link.
> 2. External method creates a zip file and puts it in a temp folder( file 
> system folder not Zope temp)
> 3. External method (same one) returns the zip file as part of response 
> as type application/x-zip
> 
> The following is what I do in to get it done:(part 3 i.e.)
> 
>         zip_size = stat(zip_file_name).st_size
>         zip_file = open(zip_file_name)
>         zip_data = zip_file.read()
>         zip_file.close()
>        
>         REQUEST.RESPONSE.setStatus('OK')
>         REQUEST.RESPONSE.setHeader('Content-Type','application/x-zip')
>         REQUEST.RESPONSE.setHeader('Content-Length',zip_size)
>         REQUEST.RESPONSE.write(zip_data)
> 
> but when I try it out the following happens:
> - the zip file is created
> - zip_data has the data (of course)
> - i am prompted to download something of type application/x-unknown-content
> - if i save the file it has zero length
> 
> so what am I doing wrong or not doing here, that needs to be done to get 
> this right??
> TIA
> AM
> 
> -- 

I am doing something similar to this except I am setting up my zip file in an External Method, and then returning the read in zip file to a python script which looks something like this:

data = context.externalMethodReturningZipFile()
RESPONSE.setHeader('Content-Type', 'application/download')
RESPONSE.setHeader('Content-Length', len(data))
RESPONSE.setHeader('Content-Disposition','attachment;filename=SomeFile.zip')

return data

HTH,
Chris

> ==================================================================
>  Aseem Mohanty							   
>  Neurobehavioral Systems Inc, 828 San Pablo Ave, Albany, CA 94706 
>  (R) 510 7696011 (M) 510 3014871 (O) 510 5279231		  	
> ==================================================================								  	
>  "I saw `cout' being shifted "Hello world" times to the left and  
>   stopped right there!!"                        -- Steve Gonedes  
> ================================================================== 
> 
> 
> 
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-- 
Chris Meyers
Huttleston Data Design
7941 Tree Lane Suite 200
Madison WI 53717