python send smtp emails

sendemail.py

#!/usr/bin/env python2
# -*- encoding:utf-8 -*-

import sys
import os
import os.path
import smtplib
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email import Encoders
from email.header import Header
from email.utils import COMMASPACE, formatdate
import logging

DEFAULT_MIMETYPE = 'application/octet-stream'


def strip_html(htmltext):
    from HTMLParser import HTMLParser

    class MLStripper(HTMLParser):

        def __init__(self):
            self.reset()
            self.fed = []

        def handle_data(self, d):
            self.fed.append(d)

        def get_data(self):
            return ''.join(self.fed)
    s = MLStripper()
    s.feed(htmltext)
    return s.get_data()


class Attachment:

    def __init__(self, filename, data, mimetype=DEFAULT_MIMETYPE):
        self.filename = filename,
        self.data = data
        self.mimetype = mimetype

    def __repr__(self):
		return "<Attachment(filename='{0}',mimetype='{1}')>".format(self.filename, self.mimetype)

    @classmethod
    def fromFile(klass, filename):
        return Attachment(filename=os.path.basename(filename), data=open(filename, 'rb').read())

    @classmethod
    def fromStringIO(klass, filename, data, mimetype=DEFAULT_MIMETYPE):
        return Attachment(filename, data.read(), mimetype)


def send_email(sender, recipient, title, text, html=False, ccs=[], attachments=[], smtpHost='localhost', smtpPort=25, username=None, password='', isTls=True):
    if type(recipient) == str:
        recipient = [recipient]
    msg = MIMEMultipart()
    msg['Subject'] = Header(title, 'utf-8')
    msg.preamble = title
    msg['From'] = sender
    msg['To'] = COMMASPACE.join(recipient)
    msg['Date'] = formatdate(localtime=True)

    if html:
        msg.attach(MIMEText(text, 'html'))
        msg.attach(MIMEText(strip_html(text), 'plain'))
    else:
        msg.attach(MIMEText(text))

    for attachment in attachments:
        ma, mb = attachment.mimetype.split('/')
        part = MIMEBase(ma, mb)
        part.set_payload(attachment.data)
        Encoders.encode_base64(part)
        part.add_header(
            'Content-Disposition', 'attachement; filename="{0}"'.format(attachment.filename))
        msg.attach(part)

    server = smtplib.SMTP(smtpHost, smtpPort)
    server.set_debuglevel(1)
    if isTls:
        try:
			server.starttls()
        except Exception:
            logging.debug('starttls failed')
    if username:
        server.login(username, password)
    server.sendmail(sender, recipient, msg.as_string())
    server.quit()

if __name__ == '__main__':
    logging.basicConfig(level=logging.DEBUG)
    parameters = {}
    for key, value in [map(str.strip, x.split('=')) for x in sys.argv[1:]]:
        if key and value:
            parameters[key] = value
    for k in ['sender', 'recipient', 'title']:
        if not k in parameters:
            logging.error("The '{0}' parameter is mandatory".format(k))
            sys.exit(-1)
    if 'file' in parameters:
        parameters['text'] = open(parameters['file'], 'rb').read()
        del parameters['file']
    else:
            parameters['text'] = sys.stdin.read()
    if 'attachments' in parameters:
        a = []
        for filename in map(str.strip,parameters['attachments'].split(',')):
            a.append(Attachment.fromFile(filename))
        parameters['attachments'] = a
    if 'html' in parameters:
        parameters['html'] = parameters['html'] in ('true', 'True')
    logging.debug(repr(parameters))
    send_email(**parameters)