fix events not propagating in certain conditions

steam/core/cm.py

@@ -93,6 +93,7 @@ class CMClient(EventEmitter):
     def _init_attributes(self):
         self.current_server_addr = None
         self.connected = False
+        self.channel_secured = False
 
         self.key = None
         self.hmac_secret = None
@@ -143,15 +144,16 @@ class CMClient(EventEmitter):
                 else:
                     message = crypto.symmetric_decrypt(message, self.key)
 
-            self._parse_message(message)
+            gevent.spawn(self._parse_message, message)
+            gevent.idle()
 
     def _parse_message(self, message):
-            if not self.connected:
-                return
-
             emsg_id, = struct.unpack_from("<I", message)
             emsg = EMsg(clear_proto_bit(emsg_id))
 
+            if not self.connected and emsg != EMsg.ClientLogOnResponse:
+                return
+
             if emsg in (EMsg.ChannelEncryptRequest,
                         EMsg.ChannelEncryptResponse,
                         EMsg.ChannelEncryptResult,
@@ -214,6 +216,7 @@ class CMClient(EventEmitter):
         else:
             logger.debug("Channel secured (legacy mode)")
 
+        self.channel_secured = True
         self.emit('channel_secured')
 
     def _handle_multi(self, msg):

steam/util/events.py

@@ -13,24 +13,22 @@ class EventEmitter(object):
         Emit event with some arguments
         """
 
-        if not hasattr(self, '_event_callbacks'):
-            return
-
         gevent.idle()
 
-        for callback in list(self._event_callbacks[event]):
-            if isinstance(callback, AsyncResult):
-                self.remove_listener(event, callback)
+        if hasattr(self, '_event_callbacks'):
+            for callback in list(self._event_callbacks[event]):
+                if isinstance(callback, AsyncResult):
+                    self.remove_listener(event, callback)
 
-                result = args
-                if len(args) == 1:
-                    result = args[0]
+                    result = args
+                    if len(args) == 1:
+                        result = args[0]
 
-                callback.set(result)
-            else:
-                gevent.spawn(callback, *args)
+                    callback.set(result)
+                else:
+                    gevent.spawn(callback, *args)
 
-            gevent.idle()
+                gevent.idle()
 
         # every event is also emitted as None
         if event is not None: