关于xmpp协议发送消息，登录认证SSL报错的问题

Q：错误描述如下

1. Traceback(most recent call last):
   File"/tails-share/features/scripts/otr-bot.py", line 197,in<module>
   otr_bot.serve_forever()
   File"/usr/lib/python2.7/dist-packages/jabberbot.py", line 715,in serve_forever
   conn = self.connect()
   File"/tails-share/features/scripts/otr-bot.py", line 82,in connect
   conres = conn.connect((conn_server, int(conn_port)))
   File"/usr/lib/python2.7/dist-packages/xmpp/client.py", line 205,in connect
   while not self.TLS.starttls and self.Process(1): pass
   File"/usr/lib/python2.7/dist-packages/xmpp/dispatcher.py", line 303,in dispatch
   handler['func'](session,stanza)
   File"/usr/lib/python2.7/dist-packages/xmpp/transports.py", line 330,inStartTLSHandler
   self._startSSL()
   File"/usr/lib/python2.7/dist-packages/xmpp/transports.py", line 309,in _startSSL
   tcpsock._sslIssuer = tcpsock._sslObj.issuer()
   AttributeError:'_ssl._SSLSocket' object has no attribute 'issuer'

该问题是xmpp新版的python中存在的一个bug。可以修改 transports.py 文件进行修复：
修改如下：( - 行标识删除 +行标识添加)

1. -import socket,select,base64,dispatcher,sys
   +import socket,ssl,select,base64,dispatcher,sys
   from simplexml import ustr
   from client importPlugIn
   from protocol import*
   @@-312,9+312,9@@class TLS(PlugIn):
   """ Immidiatedly switch socket to TLS mode. Used internally."""
   """ Here we should switch pending_data to hint mode."""
   tcpsock=self._owner.Connection
   - tcpsock._sslObj = socket.ssl(tcpsock._sock,None,None)
   - tcpsock._sslIssuer = tcpsock._sslObj.issuer()
   - tcpsock._sslServer = tcpsock._sslObj.server()
   + tcpsock._sslObj = ssl.wrap_socket(tcpsock._sock,None,None)
   + tcpsock._sslIssuer = tcpsock._sslObj.getpeercert().get('issuer')
   + tcpsock._sslServer = tcpsock._sslObj.getpeercert().get('server')
   tcpsock._recv = tcpsock._sslObj.read
   tcpsock._send = tcpsock._sslObj.write