Deleted and added smtp2chat python

smtp2slack4qnap.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+#
+# Compact SMTP to HTTP Gateway
+#  -> targeting Slack for QNAP-NAS notifications
+#
+
+# generate self-signed cert (better than nothing):
+# openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 3650 -nodes -subj '/CN=localhost'
+
+import ssl
+import asyncio
+from aiosmtpd.controller import Controller
+from aiosmtpd.smtp import SMTP as Server, syntax
+from aiosmtpd.handlers import Debugging
+from hashlib import sha256
+from base64 import b64encode, b64decode
+import requests
+import email
+import json
+
+# requires STARTTLS
+# again, overkill for running locally, but mandatory for remote
+class MyController(Controller):
+    def factory(self):
+        context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
+        context.load_cert_chain('cert.pem', 'key.pem')
+        return MyServer(self.handler, tls_context=context, require_starttls=True)
+
+def email2text(data):
+    body = email.message_from_bytes(data).get_payload()
+    h = html2text.HTML2Text()
+    h.ignore_tables = True
+    return re.sub(r'\n\s*\n', '\n\n', h.handle(body))
+
+class CustomHandler:
+    async def handle_DATA(self, server, session, envelope):
+        if not server.authenticated:
+            return '500 Unauthenticated. Could not process your message'
+        mail_from = envelope.mail_from
+        data = envelope.content
+        text = email2text(data)
+        # tuned for slack, but can be anything else
+        requests.post(WEBHOOK_URL, data={'payload': json.dumps({'username': mail_from, 'text': text})})
+        print("[+] Alert sent: {}".format(text.encode()))
+        return '250 OK'
+
+if __name__ == '__main__':
+    os.chdir(os.path.dirname(os.path.abspath(__file__)))
+    handler = CustomHandler()
+    controller = MyController(handler, hostname=LHOST, port=LPORT)
+    controller.start()
+    input('SMTP server has started ...')