Python POP3邮件

待我称王封你为后i 2023-10-21 06:20 107阅读 0赞

# -*- coding: utf-8 -*-
    
    import poplib
    import email
    from email.parser import Parser
    from email.header import decode_header
    from email.utils import parseaddr
    
    '''
    用Python的poplib模块收取邮件分两步：第一步是用POP3协议把邮件获取到本地，
    第二步是用email模块把原始邮件解析为Message对象，然后，用适当的形式把邮件内容展示给用户即可。
    '''
    
    #猜测编码格式
    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
    #解码
    def decode_str(s):
        value, charset = decode_header(s)[0]
        if charset:
            value = value.decode(charset)
        return value
    #解析邮件内容
    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))
    
    email = raw_input('Email: ')
    password = raw_input('Password: ')
    pop3_server = raw_input('POP3 server: ')
    #加密
    #server = poplib.POP3_SSL(pop3_server, port = 995)
    
    server = poplib.POP3(pop3_server)
    #server.set_debuglevel(1)
    print(server.getwelcome())
    # 认证:
    server.user(email)
    server.pass_(password)
    print('Messages: %s. Size: %s' % server.stat())
    resp, mails, octets = server.list()
    # 获取最新一封邮件, 注意索引号从1开始:
    resp, lines, octets = server.retr(len(mails))
    # 解析邮件:
    msg = Parser().parsestr('\r\n'.join(lines))
    # 打印邮件内容:
    print_info(msg)
    # 慎重:将直接从服务器删除邮件:
    # server.dele(len(mails))
    # 关闭连接:
    server.quit()

借鉴 https://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/001408244819215430d726128bf4fa78afe2890bec57736000。