Help: MIME Attachments

[Kolosov, Victor]

Here is the right sequence(first write header then body):

		subwriter = w.nextpart()
		subwriter.addheader("Content-Transfer-Encoding", "base64")
		subwriter.addheader("Content-Disposition", 'attachment;
filename="DiaryFile.notes"')
		subwriter.flushheaders()
		f = subwriter.startbody('application/octet-stream;
name="DiaryFile.notes"')

		base64.encode(open('./DiaryFile.notes', 'r'), f)
	w.lastpart()

I could not quite figure where do you write the encoded file to your message
and I whould not use 'base64' directry but 'encode' function from mimetools.
If you want here is the my function that does it for me:

def encode_me(file):
	from StringIO import StringIO
	from mimetools import encode
	file_to_send=open(file,'rb')
	encoded_object = StringIO()
	encode(file_to_send,encoded_object,'base64')
	file_to_send.close()
	file = encoded_object.getvalue()
	return file

So if you have this function - you just do:

		subwriter = w.nextpart()
		subwriter.addheader("Content-Transfer-Encoding", "base64")
		subwriter.addheader("Content-Disposition", 'attachment;
filename="DiaryFile.notes"')
		subwriter.flushheaders()
		f = subwriter.startbody('application/octet-stream;
name="DiaryFile.notes"')
		f.write(encode_me('DiaryFile.notes'))
		w.lastpart()

--
Hope it helps


> -----Original Message-----
> From:	k_mcdermott at my-deja.com [SMTP:k_mcdermott at my-deja.com]
> Sent:	Friday, June 11, 1999 5:37 AM
> To:	python-list at python.org
> Subject:	Help: MIME Attachments
> 
> Hi,
> 
> I am trying to send a plain text file, as an attachment through e-mail.
> 
> This is a hacked version of my test code below, basically the
> program interprets a dump from a diary system, and then writes
> Lotus Notes importable Calendar entries.  I want to then mail
> them to users with an accompanying instruction header to allow them
> to import them into their calendars...
> 
> The only problem is the mailing them to users bit, I either get
> the plain text in the file (which I don't want, I just want them
> to detach the text file and then import) or I get the Base64 encoded
> text, either way there is no attachment...
> 
> My Problem is that the MIME headers indicating Base64 encoding
> appears a line after the content type, and I believe that this blank
> line terminates the headers...
> 
> So my question is, at what point should I be introducing these
> headers...?
> 
> TIA
> 
> Kevin
> 
> ps Python has brought a project that was originally quoted at "tens of
> thousands of pounds and hundreds of man-hours" down to around 4 hours
> so far, and if I can crack this, ZERO outlay :-)
> 
> import base64
> import sys
> import StringIO
> import MimeWriter
> from smtplib import SMTP
> 
> # Mails the Diary Import file to the user in MIME format
> # Based upon code by GVR
> def mailFileToUser(_userName, _fileName):
> 	outputfp = StringIO.StringIO()
> 	w = MimeWriter.MimeWriter(outputfp)
> 	w.addheader("subject", "Diary Entries from Mainframe")
> 	w.flushheaders()
> 	w.startmultipartbody("mixed")
> 	subwriter = w.nextpart()
> 	f = subwriter.startbody('application/octet-stream;
> name="DiaryFile.notes"')
> 
> >>> This is the puzzling bit...
> 
> 	subwriter.addheader("Content-Transfer-Encoding", "base64")
> 	subwriter.addheader("Content-Disposition", 'attachment;
> filename="DiaryFile.notes"')
> >>>
> 
> 	subwriter.flushheaders()
> 	base64.encode(open('./DiaryFile.notes', 'r'), f)
> 	w.lastpart()
> 	# s = SMTP("localhost")
> 	# s.sendmail("diary at system.com", ["my at email.address.com"],
> outputfp.getvalue())
> 	# s.close()
> 	print outputfp.getvalue()
> if __name__=='__main__':
> 	mailFileToUser('Kevin McDermott', 'TestFile.out')
> 
> 
> Sent via Deja.com http://www.deja.com/
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