248 lines
7.3 KiB
Python
248 lines
7.3 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# Milter calls methods of your class at milter events.
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# Return REJECT,TEMPFAIL,ACCEPT to short circuit processing for a message.
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# You can also add/del recipients, replacebody, add/del headers, etc.
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import base64
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import email
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import hashlib
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import os
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import urlparse
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import StringIO
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import sys
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import time
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from socket import AF_INET, AF_INET6
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from multiprocessing import Process as Thread, Queue
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import Milter
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import requests
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from Milter.utils import parse_addr
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logq = Queue(maxsize=4)
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if 'PAGURE_CONFIG' not in os.environ \
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and os.path.exists('/etc/pagure/pagure.cfg'):
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os.environ['PAGURE_CONFIG'] = '/etc/pagure/pagure.cfg'
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import pagure
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def get_email_body(emailobj):
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''' Return the body of the email, preferably in text.
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'''
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body = None
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if emailobj.is_multipart():
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for payload in emailobj.get_payload():
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body = payload.get_payload()
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if payload.get_content_type() == 'text/plain':
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break
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else:
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body = emailobj.get_payload()
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enc = emailobj['Content-Transfer-Encoding']
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if enc == 'base64':
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body = base64.decodestring(body)
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return body
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def clean_item(item):
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''' For an item provided as <item> return the content, if there are no
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<> then return the string.
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'''
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if '<' in item:
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item = item.split('<')[1]
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if '>' in item:
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item = item.split('>')[0]
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return item
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class PagureMilter(Milter.Base):
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def __init__(self): # A new instance with each new connection.
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self.id = Milter.uniqueID() # Integer incremented with each call.
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self.fp = None
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def log(self, message):
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print(message)
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sys.stdout.flush()
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def envfrom(self, mailfrom, *str):
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self.log("mail from: %s - %s" % (mailfrom, str))
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self.fromparms = Milter.dictfromlist(str)
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# NOTE: self.fp is only an *internal* copy of message data. You
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# must use addheader, chgheader, replacebody to change the message
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# on the MTA.
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self.fp = StringIO.StringIO()
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self.canon_from = '@'.join(parse_addr(mailfrom))
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self.fp.write('From %s %s\n' % (self.canon_from, time.ctime()))
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return Milter.CONTINUE
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@Milter.noreply
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def header(self, name, hval):
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''' Headers '''
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# add header to buffer
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self.fp.write("%s: %s\n" % (name, hval))
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return Milter.CONTINUE
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@Milter.noreply
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def eoh(self):
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''' End of Headers '''
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self.fp.write("\n")
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return Milter.CONTINUE
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@Milter.noreply
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def body(self, chunk):
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''' Body '''
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self.fp.write(chunk)
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return Milter.CONTINUE
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@Milter.noreply
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def envrcpt(self, to, *str):
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rcptinfo = to, Milter.dictfromlist(str)
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print rcptinfo
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return Milter.CONTINUE
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def eom(self):
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''' End of Message '''
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self.fp.seek(0)
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msg = email.message_from_file(self.fp)
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msg_id = msg.get('In-Reply-To', None)
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if msg_id is None:
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self.log('No In-Reply-To, keep going')
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return Milter.CONTINUE
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# Ensure we don't get extra lines in the message-id
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msg_id = msg_id.split('\n')[0].strip()
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self.log('msg-ig %s' % msg_id)
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self.log('To %s' % msg['to'])
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self.log('Cc %s' % msg.get('cc'))
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self.log('From %s' % msg['From'])
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# Ensure the user replied to his/her own notification, not that
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# they are trying to forge their ID into someone else's
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salt = pagure.APP.config.get('SALT_EMAIL')
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m = hashlib.sha512('%s%s%s' % (msg_id, salt, clean_item(msg['From'])))
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email_address = msg['to']
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if 'reply+' in msg.get('cc', ''):
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email_address = msg['cc']
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if not 'reply+' in email_address:
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self.log(
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'No valid recipient email found in To/Cc: %s'
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% email_address)
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tohash = email_address.split('@')[0].split('+')[-1]
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if m.hexdigest() != tohash:
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self.log('hash: %s' % m.hexdigest())
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self.log('tohash: %s' % tohash)
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self.log('Hash does not correspond to the destination')
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return Milter.CONTINUE
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if msg['From'] and msg['From'] == pagure.APP.config.get('FROM_EMAIL'):
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self.log("Let's not process the email we send")
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return Milter.CONTINUE
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msg_id = clean_item(msg_id)
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if msg_id and '-ticket-' in msg_id:
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self.log('Processing issue')
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return self.handle_ticket_email(msg, msg_id)
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elif msg_id and '-pull-request-' in msg_id:
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self.log('Processing pull-request')
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return self.handle_request_email(msg, msg_id)
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else:
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self.log('Not a pagure ticket or pull-request email, let it go')
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return Milter.CONTINUE
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def handle_ticket_email(self, emailobj, msg_id):
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''' Add the email as a comment on a ticket. '''
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uid = msg_id.split('-ticket-')[-1].split('@')[0]
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parent_id = None
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if '-' in uid:
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uid, parent_id = uid.rsplit('-', 1)
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if '/' in uid:
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uid = uid.split('/')[0]
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self.log('uid %s' % uid)
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self.log('parent_id %s' % parent_id)
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data = {
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'objid': uid,
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'comment': get_email_body(emailobj),
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'useremail': clean_item(emailobj['From']),
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}
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url = pagure.APP.config.get('APP_URL')
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if url.endswith('/'):
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url = url[:-1]
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url = '%s/pv/ticket/comment/' % url
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req = requests.put(url, data=data)
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if req.status_code == 200:
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self.log('Comment added')
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return Milter.ACCEPT
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self.log('Could not add the comment to pagure')
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return Milter.CONTINUE
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def handle_request_email(self, emailobj, msg_id):
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''' Add the email as a comment on a request. '''
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uid = msg_id.split('-pull-request-')[-1].split('@')[0]
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parent_id = None
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if '-' in uid:
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uid, parent_id = uid.rsplit('-', 1)
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if '/' in uid:
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uid = uid.split('/')[0]
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self.log('uid %s' % uid)
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self.log('parent_id %s' % parent_id)
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data = {
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'objid': uid,
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'comment': get_email_body(emailobj),
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'useremail': clean_item(emailobj['From']),
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}
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url = pagure.APP.config.get('APP_URL')
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if url.endswith('/'):
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url = url[:-1]
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url = '%s/pv/pull-request/comment/' % url
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req = requests.put(url, data=data)
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return Milter.ACCEPT
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def background():
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while True:
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t = logq.get()
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if not t: break
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msg,id,ts = t
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print "%s [%d]" % (time.strftime('%Y%b%d %H:%M:%S',time.localtime(ts)),id),
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# 2005Oct13 02:34:11 [1] msg1 msg2 msg3 ...
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for i in msg: print i,
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print
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def main():
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bt = Thread(target=background)
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bt.start()
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socketname = "/var/run/pagure/paguresock"
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timeout = 600
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# Register to have the Milter factory create instances of your class:
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Milter.factory = PagureMilter
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print "%s pagure milter startup" % time.strftime('%Y%b%d %H:%M:%S')
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sys.stdout.flush()
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Milter.runmilter("paguremilter", socketname, timeout)
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logq.put(None)
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bt.join()
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print "%s pagure milter shutdown" % time.strftime('%Y%b%d %H:%M:%S')
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if __name__ == "__main__":
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main()
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