In gluon main there is this code:

request.body = copystream_progress(request) ### stores request body         
    if (request.body and request.env.request_method in ('POST', 'PUT', 
'BOTH')):
        dpost = 
cgi.FieldStorage(fp=request.body,environ=environ,keep_blank_values=1)
request.body.seek(0)

- request.body is a temporary copy of input stream (contains the multipart 
form, which may have files in it)
- cgi.FieldStorage(fp=request.body) parses the request stream and return a 
dictionary of FieldStorage objects (including files that may be in there)

Perhaps this helps.





On Monday, 4 June 2012 23:55:23 UTC-5, Charles Tang wrote:
>
> I have test request.vars.file_field.file, it can only be accesssed after 
> the whole file is uploaded.Should I do it at a lower level?
>
> On Tuesday, June 5, 2012 11:41:28 AM UTC+8, Charles Tang wrote:
>>
>> Can the request.vars.file_fileid.file be accessed before the video is 
>> completely uploaded?
>>
>> On Monday, June 4, 2012 11:36:35 PM UTC+8, Massimo Di Pierro wrote:
>>>
>>> The file is in request.vars.file_field.file which is a read-only stream. 
>>> You can shutil.copyfile it to a temporary folder.
>>>
>>> On Friday, 14 January 2011 18:56:41 UTC-6, Thomas Dall'Agnese wrote:
>>>>
>>>> Dear community, 
>>>>
>>>> I have a form with an upload field that I use to upload a text file, 
>>>> parse information from this file and store this information into the 
>>>> database, but not the file itself. 
>>>>
>>>> The form is for example defined by: 
>>>> form = FORM(INPUT(_name='file_field', _type = 'file', requires = 
>>>> IS_NOT_EMPTY()), 
>>>>               INPUT(_type='submit')) 
>>>>
>>>> I can access the file content with request.vars.file_field.file.read() 
>>>> but this function does not detect the file encoding and open all my 
>>>> file as utf-8. 
>>>> So instead I would like to use codecs.open(xxx, "r", charset) to 
>>>> define the charset (utf-8, iso-8859-1, ...). 
>>>> However, as I don't store the file, I can't find the file in the 
>>>> uploads/ directory. 
>>>> How can I find the temporary file path if there is any? 
>>>>
>>>> Or do you have any suggestion to read the uploaded file with the right 
>>>> encoding (without chardet)? 
>>>>
>>>> Best regards, 
>>>>
>>>> $p00ky
>>>
>>>

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