python发邮件

config.ini

[mail]
smtp_server = smtp.your-service.com
to_addr = target@email.com
from_addr = your@email.com
nickname = nick-name
password = your-password
prefix = subject-prefix
port = 25

sendmail.py

# -*- coding:utf-8 -*-
"""

"""
import argparse as ap
import smtplib
import sys
from email import encoders
from email.header import Header
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr

from configobj import ConfigObj

import os

__author__ = 'Jux.Liu'


def modINI(section, option, value=None, filename='config.ini'):
    """
修改配置文件内容
    :param section: 配置标签名称
    :param option: 配置项名称
    :param value: 配置项值
    :param filename: 配置文件名
    """
    config = ConfigObj(filename, encoding='UTF8')
    res = ''
    try:
        if len(section):
            config[section][option] = value
        else:
            config[option] = value
        config.write()
        res = True
    except Exception as e:
        res = False
    finally:
        return res


def getINI(section, option, filename='config.ini'):
    value = ''
    config = ConfigObj(filename, encoding='UTF8')
    try:
        if len(section) and len(option):
            value = config[section][option]
        elif len(section):
            value = config[section]
        elif len(option):
            value = config[option]
        else:
            raise Exception
    except Exception as e:
        value = ''
    finally:
        return value


class MAIL():
    def __init__(self):
        self.from_addr = getINI('mail', 'from_addr')
        self.nickname = getINI('mail', 'nickname')
        self.password = getINI('mail', 'password')
        self.to_addr = getINI('mail', 'to_addr')
        self.smtp_server = getINI('mail', 'smtp_server')
        self.prefix = getINI('mail', 'prefix')
        self.port = getINI('mail', 'port')

    def organize_msg(self, subject, msg, attach_file=None):
        _ = self.msg = MIMEMultipart()

        try:
            if len(attach_file) != 0:
                with open(attach_file, 'rb') as fh:
                    self.mime = MIMEBase(_maintype='image',
                                         _subtype=attach_file.split('.').pop(),
                                         filename=attach_file.split(os.sep).pop())
                    self.mime.add_header('Content-Disposition', 'attachment', filename='test.jpg')
                    self.mime.add_header('Content-ID', '<0>')
                    self.mime.add_header('X-Attachment-Id', '0')
                    self.mime.set_payload(fh.read())
                    encoders.encode_base64(msg=self.mime)
                    self.msg.attach(payload=self.mime)
            # todo: mod msg template
        except Exception as e:
            # todo: mod msg template
            pass
        finally:
            _.attach(MIMEText(msg, 'html', 'utf-8'))
            _['From'] = _format_addr('mostfun <{0}>'.format(self.from_addr))
            _['To'] = _format_addr('{0} <{1}>'.format(self.nickname, self.to_addr))
            _['Subject'] = Header(s='{0}: {1}'.format(self.prefix, subject), charset='utf-8').encode()

    def send(self):
        res = False
        try:
            _ = self.server = smtplib.SMTP(host=self.smtp_server, port=self.port)
            _.starttls()
            _.set_debuglevel(debuglevel=1)
            _.login(user=self.from_addr, password=self.password)
            _.sendmail(from_addr=self.from_addr, to_addrs=[self.to_addr], msg=self.msg.as_string())
            _.quit()
            res = True
        except Exception as e:
            raise e
        finally:
            return res


def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(s=name, charset='utf-8').encode(), addr))


def main(*args):
    m = MAIL()
    m.organize_msg(subject=args[0].subject, msg=args[0].msg, attach_file=args[0].attach)
    if m.send():
        print('ok')
    else:
        print('error')


if __name__ == "__main__":
    p = ap.ArgumentParser()
    # p.parse_args()
    p.add_argument('-s', '--subject' action='store')
    p.add_argument('-m', '--msg', action='store')
    p.add_argument('-a', '--attach' action='store')
    args, remaining = p.parse_known_args(sys.argv)
    main(args)