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#!/usr/bin/python
# A Python client for HTTPSpeaker.
__id__ = "$Id$"
__author__ = "Jason White"
__version__ = "$Revision$"
__date__ = "$Date$"
__copyright__ = "Copyright 2011 Jason White"
__license__ = "LGPL"
from httplib import HTTPConnection, HTTPResponse
class HTTPSpeakerError(Exception):
"Holds the HTTP status code and reason phrase returned by the server in the event of an error."
def __init__(self, status, reason):
self.status = status
self.reason = reason
def __str__(self):
return "Status code " + str(self.status) + ": " + self.reason
class HTTPSpeakerClient:
"""Emacspeak HTTP speech client, for HTTPSpeaker instances."""
def __init__(self, host="127.0.0.1", port=8000):
"Initialize client to connect to server at given host and port."
self._connection=HTTPConnection(host, port)
def postCommand(self, command, arg=""):
"""Post command, with argument arg (default, empty), to the speech server.
Returns the body of the server's HTTP response, if any. On error, HTTPSpeakerError is raised."""
body = command
if arg:
body += ": " + arg
self._connection.request("POST", "/", body, {"Content-type": "text/plain"})
response=self._connection.getresponse()
if response.status != 200:
raise HTTPSpeakerError(response.status, response.reason)
return response.read()
def speak(self, text):
"Speak the supplied string."
self.postCommand("speak", text)
def stop(self):
"Stop speaking."
self.postCommand("stop")
def isSpeaking(self):
"Return '0' when not speaking."
return self.postCommand("isSpeaking")
def close(self):
"Close the connection to the speech server."
self._connection.close()
# Test the server (assumes localhost:8000).
if __name__ == '__main__':
client = HTTPSpeakerClient()
client.speak("Hello, world!")
print client.isSpeaking()
client.close()
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