[mod_python] File upload

Greenbeard wrote:

>Does anyone have a good file upload example?  
>
>When I try something like: 
>
>def upload(req, file):
>    tempFile = file.read()
> 
>I get: AttributeError: File instance has no attribute
>'read'
>
>if I use:
>
>    tempFile = req.form['file'] 
>I get the file contents but I don't think this would
>work well with large files (or would it?) 
>
>Also, 
> 
>when I try to get attribues like file.type I get 
>
>AttributeError: File instance has no attribute 'type'.
>I do get the file.filename.   
>
>So how can I tell if it should be a binary write etc.?
>
>It looks like the publisher handler (which I am using)
>returns a File object but I can not get it to act like
>a file/StringIO object nor can I accesss the
>attributes that are mentioned in the documentation.   
>
>
>I am using W2k, Python 2.2  and Mod_py 3.0.3.  
>
>Thanks for the help,
>
>gb400
>
>
>
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Don't know much about publisher, but a normal mod_python handler should 
be able to do something like this (totally untested code):

def handle(req):
  argdict = util.FieldStorage(req)
  for key in argdict.keys():
    value = argdict[key]
    if type(value) == types.InstanceType:
      if isinstance(value, util.StringField):
        # this is for a normal field...
        pass
      elif isinstance(value, util.Field):
        # this is for an attachment upload...
        filename = field.filename
        content_type = field.type
        # this will work by doing a read...
        contents = field.value
        # or you can do the read yourself:
        field.file.seek(0)
        contents = field.file.read()
        # reset the position so others can read it
        field.file.seek(0)