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new: rewrite smtpd (deprecated) with aiosmtpd

slight_refactoring
Raphaël Vinot 4 years ago
parent
commit
516a890cfe
  1. 65
      fake_smtp.py
  2. 1
      reqirements.txt

65
fake_smtp.py

@ -1,41 +1,38 @@
#!/usr/bin/python3
import os
import sys
import tempfile
try:
configfile = os.path.basename(sys.argv[0]).split(".py")[0] + "_config"
except Exception as e:
print("Couldn't locate config file {0}".format(configfile))
sys.exit(-1)
try:
import smtpd
import asyncore
import subprocess
config = __import__(configfile)
except ImportError as e:
print("(!) Problem loading module:")
print(e)
sys.exit(-1)
from pathlib import Path
import importlib
from subprocess import run, PIPE
import aiosmtpd.controller
smtp_addr = config.smtp_addr
smtp_port = config.smtp_port
binpath = config.binpath
print("Starting Fake-SMTP-to-MISP server")
class CustomSMTPHandler:
async def handle_DATA(self, server, session, envelope):
print(f'Receiving message from: {session.peer}')
print(f'Message addressed from: {envelope.mail_from}')
print(f'Message addressed to : {envelope.rcpt_tos}')
print(f'Message length : {len(envelope.content)}')
p = run([binpath, "-"], stdout=PIPE, input=envelope.content)
print(p)
return '250 OK'
class CustomSMTPServer(smtpd.SMTPServer):
def process_message(self, peer, mailfrom, rcpttos, data):
print('Receiving message from: {0}'.format(peer))
print('Message addressed from: {0}'.format(mailfrom))
print('Message addressed to : {0}'.format(rcpttos))
print('Message length : {0}'.format(len(data)))
tf = tempfile.NamedTemporaryFile(mode='w', delete=False)
tf.write(data)
tf.close()
subprocess.call([binpath, "-r", tf.name])
os.unlink(tf.name)
return
server = CustomSMTPServer((smtp_addr, smtp_port), None)
if __name__ == '__main__':
configmodule = Path(__file__).as_posix().replace('.py', '_config')
if Path(f'{configmodule}.py').exists():
config = importlib.import_module(configmodule)
else:
print("Couldn't locate config file {0}".format(f'{configmodule}.py'))
sys.exit(-1)
asyncore.loop()
smtp_addr = config.smtp_addr
smtp_port = config.smtp_port
binpath = config.binpath
print("Starting Fake-SMTP-to-MISP server")
handler = CustomSMTPHandler()
server = aiosmtpd.controller.Controller(handler, hostname=smtp_addr, port=smtp_port)
server.start()
input("Server started. Press Return to quit.")
server.stop()

1
reqirements.txt

@ -3,3 +3,4 @@ pymisp[fileobjects]
git+https://github.com/kbandla/pydeep.git
git+https://github.com/stricaud/faup.git#egg=pyfaup&subdirectory=src/lib/bindings/python
git+https://github.com/Rafiot/defang.git
aiosmtpd

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