pubnub将消息清除到“chipered”频道

PubNub上的新功能对此感兴趣。尝试一些简单的例子来了解pubnub将消息清除到“chipered”频道

from Pubnub import Pubnub 
import sys 

SUB_KEY = "xxxxxxxxxx" 
PUB_KEY = "yyyyyyyyyy" 
CHIPER_KEY = "zzzzzzzzz" 
channel = 'hello_world' 


pubnub = Pubnub(publish_key=PUB_KEY, subscribe_key=SUB_KEY, cipher_key=CHIPER_KEY,ssl_on=True) 

# Listen for Messages 
def callback(message, channel): 
    try: 
     if message == "": 
      print ("message not valid") 
     else: 
      print(message) 
      if message['text'] == "close": 
       pubnub.unsubscribe(channel=channel) 
    except: 
     print ("xxx") 

def error(message): 
    print("ERROR : " + str(message)) 


def connect(message): 
    print("CONNECTED") 


def reconnect(message): 
    print("RECONNECTED") 


def disconnect(message): 
    print("DISCONNECTED") 

try: 
    pubnub.subscribe(channel, callback=callback, error=error, connect=connect, reconnect=reconnect, disconnect=disconnect) 
except: 
    print "Unexpected error:", sys.exc_info()[0]

我有这个简单的服务器订阅一个通道并打印出收到的消息。现在我已启用加密，并在一种情况下一切工作更好，在第二种情况下，它不起作用。更多详细信息

想象一下，恶意用户获取我的PUB_KEY和频道名称，他可以发布消息到我的频道。然而，他不知道我的CHIPER_KEY（这不是任何地方托管，我已经产生，我控制它）

在这种情况下，下面我崩溃的服务器：

Exception in thread Thread-2: 
Traceback (most recent call last): 
    File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner 
    self.run() 
    File "/usr/lib/python2.7/threading.py", line 505, in run 
    self.__target(*self.__args, **self.__kwargs) 
    File "/usr/local/lib/python2.7/dist-packages/Pubnub.py", line 1281, in run 
    _invoke(self.pubnub.latest_sub_callback['callback'], data) 
    File "/usr/local/lib/python2.7/dist-packages/Pubnub.py", line 1254, in _invoke 
    func(get_data_for_user(data)) 
    File "/usr/local/lib/python2.7/dist-packages/Pubnub.py", line 1074, in sub_callback 
    _invoke(chobj['callback'], self.decrypt(r), 
    File "/usr/local/lib/python2.7/dist-packages/Pubnub.py", line 544, in decrypt 
    message = self.pc.decrypt(self.cipher_key, message) 
    File "/usr/local/lib/python2.7/dist-packages/Pubnub.py", line 156, in decrypt 
    plain = self.depad(cipher.decrypt(decodestring(msg))) 
    File "/usr/lib/python2.7/base64.py", line 321, in decodestring 
    return binascii.a2b_base64(s) 
TypeError: must be string or buffer, not dict

这里我的理解是，这是失败的作为收到的消息（这是明确的）是一个字典和pubnub.py调用binascii.a2b_base64（s）期望一个字符串（如果邮件加密是一个字符串）

任何想法如何克服这一点问题？

非常感谢安东尼

来源

2014-10-28 Antonio Mancuso