qwebirc/engines/feedbackengine.py

   1 from twisted.web import resource, server, static
   2 from twisted.mail.smtp import SMTPSenderFactory, ESMTPSenderFactory
   3 from twisted.internet import defer, reactor
   4 from StringIO import StringIO
   5 from email.mime.text import MIMEText
   6 import qwebirc.util as util
   7 import config
   8
   9 class FeedbackException(Exception):
  10   pass
  11
  12 class FeedbackEngine(resource.Resource):
  13   isLeaf = True
  14
  15   def __init__(self, prefix):
  16     self.prefix = prefix
  17     self.__hit = util.HitCounter()
  18
  19   @property
  20   def adminEngine(self):
  21     return dict(Sent=[(self.__hit,)])
  22
  23   def render_POST(self, request):
  24     text = request.args.get("feedback")
  25     if text is None:
  26       raise FeedbackException("No text.")
  27     if len(text) > 50000:
  28       raise FeedbackException("Too much text.")
  29
  30     text = text[0]
  31
  32     # basic checksum to stop really lame kiddies spamming, see feedback.js for js version
  33     checksum = 0;
  34     text = text.decode("utf-8", "ignore")
  35     for x in text:
  36       checksum = ((checksum + 1) % 256) ^ (ord(x) % 256);
  37
  38     sentchecksum = int(request.args.get("c", [0])[0])
  39     if checksum != sentchecksum:
  40       raise FeedbackException("Bad checksum: %d vs. %d" % (sentchecksum, checksum))
  41
  42     msg = MIMEText(text.encode("utf-8"), _charset="utf-8")
  43     msg["Subject"] = "qwebirc feedback from %s" % (request.client[1])
  44     msg["From"] = config.FEEDBACK_FROM
  45     msg["To"] = config.FEEDBACK_TO
  46     email = StringIO(msg.as_string())
  47     email.seek(0, 0)
  48
  49     factorytype = SMTPSenderFactory
  50     factory = factorytype(fromEmail=config.FEEDBACK_FROM, toEmail=config.FEEDBACK_TO, file=email, deferred=defer.Deferred())
  51     reactor.connectTCP(config.FEEDBACK_SMTP_HOST, config.FEEDBACK_SMTP_PORT, factory)
  52     self.__hit()
  53     return "1"