def _create_attachment(self, filename, content, mimetype=None):
"""
Converts the filename, content, mimetype triple into a MIME attachment
object.
"""
if mimetype is None:
mimetype, _ = mimetypes.guess_type(filename)
if mimetype is None:
mimetype = DEFAULT_ATTACHMENT_MIME_TYPE
basetype, subtype = mimetype.split('/', 1)
if basetype == 'text':
attachment = SafeMIMEText(to_str(content),
subtype, 'utf-8')
else:
# Encode non-text attachments with base64.
attachment = MIMEBase(basetype, subtype)
attachment.set_payload(content)
Encoders.encode_base64(attachment)
if filename:
attachment.add_header('Content-Disposition', 'attachment',
filename=filename)
return attachment
def message(self):
encoding = self.encoding or 'utf-8'
msg = SafeMIMEText(to_str(self.body),
self.content_subtype, encoding)
if self.attachments:
body_msg = msg
msg = SafeMIMEMultipart(_subtype=self.multipart_subtype)
if self.body:
msg.attach(body_msg)
for attachment in self.attachments:
if isinstance(attachment, MIMEBase):
msg.attach(attachment)
else:
msg.attach(self._create_attachment(*attachment))
msg['Subject'] = self.subject
msg['From'] = self.from_email
msg['To'] = ', '.join(self.to)
msg['Date'] = formatdate()
msg['Message-ID'] = make_msgid()
for name, value in self.extra_headers.items():
msg[name] = value
return msg
