recv.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email.parser import Parser
from email.header import decode_header
from email.utils import parseaddr

import poplib
import argparse

def guess_charset(msg):
    charset = msg.get_charset()
    if charset is None:
        content_type = msg.get('Content-Type', '').lower()
        pos = content_type.find('charset=')
        if pos >= 0:
            charset = content_type[pos + 8:].strip()
    return charset

def decode_str(s):
    value, charset = decode_header(s)[0]
    if charset:
        value = value.decode(charset)
    return value

def print_info(msg, indent=0):
    if indent == 0:
        for header in ['From', 'To', 'Subject']:
            value = msg.get(header, '')
            if value:
                if header=='Subject':
                    value = decode_str(value)
                else:
                    hdr, addr = parseaddr(value)
                    name = decode_str(hdr)
                    value = u'%s <%s>' % (name, addr)
            print('%s%s: %s' % ('  ' * indent, header, value))
    if (msg.is_multipart()):
        parts = msg.get_payload()
        for n, part in enumerate(parts):
            print('%spart %s' % ('  ' * indent, n))
            print('%s--------------------' % ('  ' * indent))
            print_info(part, indent + 1)
    else:
        content_type = msg.get_content_type()
        if content_type=='text/plain' or content_type=='text/html':
            content = msg.get_payload(decode=True)
            charset = guess_charset(msg)
            if charset:
                content = content.decode(charset)
            print('%sText: %s' % ('  ' * indent, content + '...'))
        else:
            print('%sAttachment: %s' % ('  ' * indent, content_type))

def recv_email(**kw):
	server = poplib.POP3(kw['pop3_server'])
	print(server.getwelcome().decode('utf-8'))
	server.user(kw['email'])
	server.pass_(kw['password'])
	print('Messages: %s. Size: %s' % server.stat())
	resp, mails, octets = server.list()
	print(mails)
	index = len(mails)
	resp, lines, octets = server.retr(index)
	msg_content = b'\r\n'.join(lines).decode('utf-8')
	msg = Parser().parsestr(msg_content)
	print_info(msg)
	server.quit()

def main():
	parse = argparse.ArgumentParser(description='Simple pop3 receiver.')
	parse.add_argument('-e', '--email', default='liukunxin1@163.com')
	parse.add_argument('-p', '--password', default='liukunxin1')
	parse.add_argument('-s', '--pop3_server', default='pop.163.com')
	args = parse.parse_args()
	recv_email(**vars(args))

if __name__ == "__main__":
	main()