chatmain.py

   1 #!/usr/bin/env python2
   2 # vim:fileencoding=utf-8
   3
   4 import logging
   5 import datetime
   6 from google.appengine.api import xmpp
   7 from google.appengine.ext import webapp
   8 from google.appengine.ext.webapp.util import run_wsgi_app
   9
  10 import lilytalk
  11 import config
  12 import utils
  13
  14 class XMPPSub(webapp.RequestHandler):
  15   '''被人加好友了～可能被触发多次'''
  16   def post(self):
  17     jid = self.request.get('from')
  18     u = lilytalk.get_user_by_jid(jid)
  19     lilytalk.try_add_user(jid)
  20
  21 class XMPPUnsub(webapp.RequestHandler):
  22   def post(self):
  23     # 注意：由于 gtalk 客户端的错误处理，提供了一个使用命令离开的方式
  24     jid = self.request.get('from')
  25     L = utils.MemLock('delete_user')
  26     L.require()
  27     try:
  28       u = lilytalk.get_user_by_jid(jid)
  29       if u is not None:
  30         if u.jid == config.root:
  31           xmpp.send_message(jid, u'root 用户：离开前请确定你已做好善后工作！')
  32         lilytalk.log_onoff(u, lilytalk.LEAVE)
  33         lilytalk.send_to_all(u'%s 已经离开' % u.nick)
  34         u.delete()
  35         logging.info(u'%s 已经离开' % jid)
  36     finally:
  37       L.release()
  38
  39 class XMPPMsg(webapp.RequestHandler):
  40   def post(self):
  41     try:
  42       message = xmpp.Message(self.request.POST)
  43       lilytalk.handle_message(message)
  44     except xmpp.InvalidMessageError:
  45       logging.info('InvalidMessageError: %r' % self.request.POST)
  46
  47 class XMPPAvail(webapp.RequestHandler):
  48   def post(self):
  49     '''show 可以是 away、dnd（忙碌）或空（在线）'''
  50     jid, resource = self.request.get('from').split('/', 1)
  51     status = self.request.get('status')
  52     show = self.request.get('show')
  53     logging.debug(u'%s 的状态: %s (%s)' % (jid, status, show))
  54     try:
  55       show = lilytalk.STATUS_CODE[show]
  56     except KeyError:
  57       logging.error('%s has sent an incorrect show code %s' % (jid, show))
  58       return
  59     try:
  60       lilytalk.send_status(self.request.get('from'))
  61     except xmpp.Error:
  62       logging.error('Error while sending presence to %s' % jid)
  63       return
  64     u = lilytalk.get_user_by_jid(jid)
  65     if u is not None:
  66       modified = False
  67       if resource not in u.resources:
  68         u.resources.append(resource)
  69         modified = True
  70       if u.avail != show:
  71         if u.avail == lilytalk.OFFLINE:
  72           u.last_online_date = datetime.datetime.now()
  73         u.avail = show
  74         modified = True
  75       if modified:
  76         lilytalk.log_onoff(u, show, resource)
  77         u.put()
  78       if config.warnGtalk105 and resource.startswith('Talk.v105'):
  79         xmpp.send_message(jid, u'您的客户端使用明文传输数据，为了大家的安全，请使用Gtalk英文版或者其它使用SSL加密的客户端。')
  80     else:
  81       lilytalk.try_add_user(jid, show, resource)
  82
  83 class XMPPUnavail(webapp.RequestHandler):
  84   def post(self):
  85     jid, resource = self.request.get('from').split('/', 1)
  86     status = self.request.get('status')
  87     logging.info(u'%s 下线了' % jid)
  88     u = lilytalk.get_user_by_jid(jid)
  89     if u is not None:
  90       if resource in u.resources:
  91         u.resources.remove(resource)
  92         if not u.resources:
  93           u.avail = lilytalk.OFFLINE
  94           u.last_offline_date = datetime.datetime.now()
  95         u.put()
  96       lilytalk.log_onoff(u, lilytalk.OFFLINE, resource)
  97
  98 class XMPPProbe(webapp.RequestHandler):
  99   def post(self):
 100     fulljid = self.request.get('from')
 101     try:
 102       lilytalk.send_status(self.request.get('from'))
 103     except xmpp.Error:
 104       logging.error('Error while sending presence to %s' % jid)
 105       return
 106
 107 class XMPPDummy(webapp.RequestHandler):
 108   def post(self):
 109     pass
 110
 111 application = webapp.WSGIApplication(
 112   [
 113     ('/_ah/xmpp/subscription/subscribed/', XMPPSub),
 114     ('/_ah/xmpp/subscription/unsubscribed/', XMPPUnsub),
 115     ('/_ah/xmpp/message/chat/', XMPPMsg),
 116     ('/_ah/xmpp/presence/available/', XMPPAvail),
 117     ('/_ah/xmpp/presence/unavailable/', XMPPUnavail),
 118     ('/_ah/xmpp/presence/probe/', XMPPProbe),
 119     ('/_ah/xmpp/subscription/subscribe/', XMPPDummy),
 120     ('/_ah/xmpp/subscription/unsubscribe/', XMPPDummy),
 121   ],
 122   debug=True)
 123
 124 def main():
 125   run_wsgi_app(application)
 126
 127 if __name__ == "__main__":
 128   main()