如何使用python的smptd DebuggingServer输出解码的base64编码的电子邮件
[英]how to output decoded base64 encoded emails with python's smptd DebuggingServer
问题描述
I found this awesome one liner to create smtp servers on the fly with python: 
我发现了这个很棒的衬板，可以使用python快速创建smtp服务器：
python -m smtpd -n -c DebuggingServer localhost:1025
Trouble is, my application sends the mail contents base64 encoded, so the output really looks like garbage: 麻烦的是，我的应用程序发送了以base64编码的邮件内容，因此输出确实看起来像垃圾：
---------- 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'
and so on. 等等。
if I atob this, I get: 如果我不喜欢这个，我会得到：
atob('PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv')
"<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional/"
How can I get clean base64 output decoded logs ? 如何获得干净的base64输出解码日志？ Ps: I don't want to process logs afterwards, I want a clean output directly. 附言：我不想以后再处理日志，我希望直接输出干净的日志。 It's running inside a linux docker container. 它在linux docker容器中运行。
1 个解决方案
解决方案1
0 2018-04-03 16:39:17
thanks to @zwer answer, I got to implement a server myself: 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
it's really rough, it assumes parts are encoded in UTF-8. 这确实很粗糙，它假定部分是以UTF-8编码的。 Also, i'm not sure what the second argument is for. 另外，我不确定第二个参数是什么。 Use with caution. 请谨慎使用。
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