# -*- coding: utf-8 -*-
"""
    amazon_sender.py
    ~~~~~~~~
    Python helper class that can send emails using Amazon SES and boto.
    The biggest feature of this class is that encodings are handled properly.
    It can send both text and html emails.
    This implementation is using Python's standard library 
    (which opens up for a lot more options).
    Example::
        amazon_sender = AmazonSender(AWS_ID, AWS_SECRET)
        amazon_sender.send_email(sender=u'???? <john@doe.com>',
                                 to='blah@blah.com',
                                 subject='Hello friend',
                                 text='Just a message',
                                 html='<b>Just a message</b>',
                                 sender_ascii='Ascii Sender <no_reply@wedoist.com>')
    :copyright: 2011 by Amir Salihefendic ( http://amix.dk/ ).
    :license: BSD
"""
import types
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE
from boto.ses import SESConnection
class AmazonSender(object):
    client = None
    def __init__(self, aws_key, aws_secret):
        self.aws_key = aws_key
        self.aws_secret = aws_secret
    def send_email(self, sender,
                         to_addresses,
                         subject,
                         text,
                         html=None,
                         reply_addresses=None,
                         sender_ascii=None):
        if not sender_ascii:
            sender_ascii = sender
        client = self.get_client()
        message = MIMEMultipart('alternative')
        message.set_charset('UTF-8')
        message['Subject'] = _encode_str(subject)
        message['From'] = _encode_str(sender)
        message['To'] = _convert_to_strings(to_addresses)
        if reply_addresses:
            message['Reply-To'] = _convert_to_strings(reply_addresses)
        message.attach(MIMEText(_encode_str(text), 'plain'))
        if html:
            message.attach(MIMEText(_encode_str(html), 'html'))
#        return client.send_raw_email(sender_ascii, message.as_string(),
#                                                   destinations=to_addresses)
	return client.send_raw_email(message.as_string(), sender_ascii,
                                                   destinations=to_addresses)
    def vertify_email(self, email):
        client = self.get_client()
        return client.verify_email_address(email)
    def get_client(self):
        if not self.client:
            self.client = SESConnection(self.aws_key,
                                        self.aws_secret)
        return self.client
#--- Helpers ----------------------------------------------
def _convert_to_strings(list_of_strs):
    if isinstance(list_of_strs, (list, tuple)):
        result = COMMASPACE.join(list_of_strs)
    else:
        result = list_of_strs
    return _encode_str(result)
def _encode_str(s):
    if type(s) == types.UnicodeType:
        return s.encode('utf8')
    return s

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