Source Code for Script script-test_client_py

 1  #!/usr/bin/python 
 2  # A Python client for HTTPSpeaker. 
 3  __id__ = "$Id$" 
 4  __author__ = "Jason White" 
 5  __version__ = "$Revision$" 
 6  __date__ = "$Date$" 
 7  __copyright__ = "Copyright 2011 Jason White" 
 8  __license__ = "LGPL" 
 9   
10  from httplib import HTTPConnection, HTTPResponse 
11   
12 -class HTTPSpeakerError(Exception): 
13      "Holds the HTTP status code and reason phrase returned by the server in the event of an error." 
14 -    def __init__(self, status, reason): 
15          self.status = status 
16          self.reason = reason 
17 -    def __str__(self): 
18          return "Status code " + str(self.status) + ": " + self.reason 
19   
20 -class HTTPSpeakerClient: 
21      """Emacspeak HTTP speech client, for HTTPSpeaker instances.""" 
22 -    def __init__(self, host="127.0.0.1", port=8000): 
23          "Initialize client to connect to server at given host and port." 
24          self._connection=HTTPConnection(host, port) 
25   
26 -    def postCommand(self, command, arg=""): 
27          """Post command, with argument arg (default, empty), to the speech server. 
28          Returns the body of the server's HTTP response, if any. On error, HTTPSpeakerError is raised.""" 
29          body = command 
30          if arg: 
31              body += ": " + arg 
32          self._connection.request("POST", "/", body, {"Content-type": "text/plain"}) 
33          response=self._connection.getresponse() 
34          if response.status != 200: 
35              raise HTTPSpeakerError(response.status, response.reason) 
36          return response.read() 
37   
38 -    def speak(self, text): 
39          "Speak the supplied string." 
40          self.postCommand("speak", text) 
41   
42 -    def stop(self): 
43          "Stop speaking." 
44          self.postCommand("stop") 
45   
46 -    def isSpeaking(self): 
47          "Return '0' when not speaking." 
48          return self.postCommand("isSpeaking") 
49   
50 -    def close(self): 
51          "Close the connection to the speech server." 
52          self._connection.close() 
53   
54  # Test the server (assumes localhost:8000). 
55  if __name__ == '__main__': 
56      client = HTTPSpeakerClient() 
57      client.speak("Hello, world!") 
58      print client.isSpeaking() 
59      client.close() 
60