Question

我发现这个很棒的一个衬里用python创建了smtp服务器：

python -m smtpd -n -c DebuggingServer localhost:1025

麻烦的是，我的应用程序发送邮件内容base64编码，所以输出看起来真的像垃圾：

---------- MESSAGE FOLLOWS ----------
b'Content-Type: multipart/alternative; boundary="===============7226846835346479139=="'
b'MIME-Version: 1.0'
b'Subject: redacted subject'
b'From: ACME Online 2'
b'To: john.doe@acme.com'
b'Cc: '
b'X-Peer: 10.255.13.37'
b''
b'--===============7226846835346479139=='
b'Content-Type: text/html; charset="utf-8"'
b'MIME-Version: 1.0'
b'Content-Transfer-Encoding: base64'
b''
b'PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv'
b'L0VOIj4KPGh0bWw+CjxoZWFkPgogICAgPG1ldGEgaHR0cC1lcXVpdj0iY29udGVudC10eXBlIiBj'
b'b250ZW50PSJ0ZXh0L2h0bWw7Y2hhcnNldD1pc28tODg1OS0xIj4KICAgIDx0aXRsZT5XZWVrbHkg'

等等。

如果我知道这个，我得到：

atob('PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv')
"<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional/"

如何获得干净的base64输出解码日志？ Ps：之后我不想处理日志，我想直接输出干净的输出。它在linux docker容器中运行。

Answer 1

感谢@zwer的回答，我自己实现了一个服务器：

import asyncore
import email
from smtpd import DebuggingServer

class ActualDebuggingServer(DebuggingServer):
    def _print_message_content(self, peer, data):
        msg = email.message_from_string(data)
        for (header,value) in msg.items():
            print(header, ': ', value)
        for part in msg.walk():
            print('---------- a part: ----------')
            maybe_decoded_payload = part.get_payload(decode=True)
            if (maybe_decoded_payload is not None):
                print(bytes.decode(maybe_decoded_payload, encoding="utf-8"))


if __name__ == '__main__':
    ActualDebuggingServer(
        ('0.0.0.0', 1025),
        ('0.0.0.0', 1025)
    )
    try:
        asyncore.loop()
    except KeyboardInterrupt:
        pass

它非常粗糙，它假设部件以UTF-8编码。另外，我不确定第二个参数是什么。请谨慎使用。

如何使用python的smptd DebuggingServer

1 个答案: