Use utf-8 for emails.

[irc/quakenet/qwebirc.git] / qwebirc / feedbackengine.py

from twisted.web import resource, server, static
from twisted.mail.smtp import SMTPSenderFactory, ESMTPSenderFactory
from twisted.internet import defer, reactor
from StringIO import StringIO
from email.mime.text import MIMEText
import config

class FeedbackException(Exception):
  pass
  
class FeedbackEngine(resource.Resource):
  isLeaf = True
  
  def __init__(self, prefix):
    self.prefix = prefix

  def render_POST(self, request):
    text = request.args.get("feedback")
    if text is None:
      raise FeedbackException("No text.")
    if len(text) > 50000:
      raise FeedbackException("Too much text.")
      
    text = text[0]
    
    # basic checksum to stop really lame kiddies spamming, see feedback.js for js version
    checksum = 0;
    text = text.decode("utf-8", "ignore")
    for x in text:
      checksum = ((checksum + 1) % 256) ^ (ord(x) % 256);
    
    sentchecksum = int(request.args.get("c", [0])[0])
    if checksum != sentchecksum:
      raise FeedbackException("Bad checksum: %d vs. %d" % (sentchecksum, checksum))
      
    msg = MIMEText(text.encode("utf-8"), _charset="utf-8")
    msg["Subject"] = "qwebirc feedback from %s" % (request.client[1])
    msg["From"] = config.FEEDBACK_FROM
    msg["To"] = config.FEEDBACK_TO
    email = StringIO(msg.as_string())
    email.seek(0, 0)
    
    factorytype = SMTPSenderFactory
    factory = factorytype(fromEmail=config.FEEDBACK_FROM, toEmail=config.FEEDBACK_TO, file=email, deferred=defer.Deferred())
    reactor.connectTCP(config.FEEDBACK_SMTP_HOST, config.FEEDBACK_SMTP_PORT, factory)
    return "1"