run - move messaged based on the validation result

README.md

@@ -2,7 +2,34 @@
 
 POC: diagnostic autoresponder for smime multipart/signed
 
+### Installation
+#### Requirements
+  * Python3 (>= 3.5 probably)
+  * M2Crypto
+  * asn1crypto
+  * OpenSSL
+  * cryptography
+  * jinja2
 
+###
+```commandline
+python3.5 -m venv ~/venv-msv/
+~/venv-msv/bin/pip install --upgrade pip
+# apt-get build-dep m2crypto
+# apt-get install python3-dev libpython3-dev
+~/venv-msv/bin/pip --requirement requirements.txt
+
+```
+
+### Configuration
+```commandline
+cp conf/example.ini conf/msv.ini
+chmod 0600 conf/msv.conf
+# edit conf/msv.ini
+
+```
+
+#### Running
 
 ##### debug
 ```commandline

conf/example.ini

@@ -7,5 +7,9 @@ password = X
 [cmd_run]
 mailbox = INBOX
 subject = Bitte validieren
-action = see
-
+action = move
+# see delete move
+# move moves the mail to another directory
+move_on_error = processed/error
+move_on_good = processed/good
+move_on_bad = processed/bad

mailsignaturevalidator.py

@@ -336,7 +336,7 @@ def respond(cfg, body, old):
 	s.sendmail(old['To'], [old['From']], msg.as_string())
 
 
-def process(cfg, m, data, action):
+def process(cfg, m, data, action, moveto=None):
 	for msgid in filter(lambda x: x != '', data[0].decode('utf-8').split(' ')):
 		typ, msg = m.fetch(msgid, '(RFC822)')
 		for part in msg:
@@ -348,33 +348,41 @@ def process(cfg, m, data, action):
 			date = datetime.datetime.fromtimestamp(time.mktime(email.utils.parsedate(mail['Date'])))
 			log.info('Processing {date} "{From}" "{To}" "{Subject}"'.format(date=date, **mail))
 
+			# valid is 3 state
+			# True False None, None is error
 			try:
 				valid, p7, data, micalg, digest = validate(mail)
 			except Exception as e:
 				log.exception(e)
 				valid = None
+			else:
+				try:
+					response = render(p7, data, micalg, digest)
+#					respond(cfg, response, mail)
+				except Exception as e:
+					log.exception(e)
+					valid = None
 			finally:
-				if valid is None:
-					# format error?
-					pass
-				elif valid is True:
-					# valid
-					pass
-				else:
-					# invalid
-					pass
-
-			response = render(p7, data, micalg, digest)
-			respond(cfg, response, mail)
-
-
-		if action == 'see':
-			log.debug("Marked as Seen")
-			m.store(msgid, '+FLAGS', '\Seen')
-		elif action == 'delete':
-			m.store(msgid, '+FLAGS', '\Deleted')
-			m.expunge()
-			log.debug("Deleted Message")
+				if action == 'move':
+					# move
+					assert valid in moveto
+					target = moveto[valid]
+					log.info('Moving to {}'.format(target))
+					state, _ = m.uid('COPY', msgid, target)
+					assert state == 'OK'
+					state, _ = m.store(msgid, '+FLAGS', '\Deleted')
+					assert state == 'OK'
+					m.expunge()
+				elif action == 'see':
+					log.debug("Marked as Seen")
+					m.store(msgid, '+FLAGS', '\Seen')
+				elif action == 'delete':
+					m.store(msgid, '+FLAGS', '\Deleted')
+					m.expunge()
+					log.debug("Deleted Message")
+
+			# this msg is processed
+			break
 
 
 def main():
@@ -449,7 +457,7 @@ def main():
 			t, data = m.search(None, pattern)
 			assert state == 'OK'
 
-			process(cfg, m, data, args.extension, args.directory, args.action)
+			process(cfg, m, data, args.extension, args.directory, args.action, moveto=None)
 
 		except Exception as e:
 			log.exception(e)
@@ -473,24 +481,27 @@ def main():
 
 	cmd = sub.add_parser('run')
 	def cmd_run(args):
-		assert cfg.get('cmd_run', 'action') in ['see','delete']
-
+		action = cfg.get('cmd_run', 'action')
+		assert action in ['see','delete','move']
+		moveto = {}
+		if action == 'move':
+			for k,v in {True:'good',False:'bad',None:'error'}.items():
+				moveto[k] = cfg.get('cmd_run', 'move_on_{}'.format(v))
 		pattern = '(UNSEEN) '
 		pattern += '(SUBJECT "{}") '.format(cfg.get('cmd_run', 'subject'))
-		action = cfg.get('cmd_run', 'action')
 
 		while True:
-			time.sleep(10)
 			try:
 				m = login(cfg)
 				state, data = m.select(cfg.get('cmd_run','mailbox'), readonly=False)
 				assert state == 'OK'
 				while True:
 					state, data = m.search(None, pattern)
-					process(cfg, m, data, action)
+					process(cfg, m, data, action, moveto)
 					time.sleep(10)
 			except Exception as e:
 				log.exception(e)
+			time.sleep(10)
 	cmd.set_defaults(func=cmd_run)
 
 

requirements.txt

+M2Crypto
+asn1crypto
+pyOpenSSL
+cryptography
+jinja2