import argparse

import qi

import sys

class Authenticator:

def __init__(self, username, password):

self.username = username

self.password = password

# This method is expected by libqi and must return a dictionary containing

# login information with the keys 'user' and 'token'.

def initialAuthData(self):

return {'user': self.username, 'token': self.password}

class AuthenticatorFactory:

def __init__(self, username, password):

self.username = username

self.password = password

# This method is expected by libqi and must return an object with at least

# the `initialAuthData` method.

def newAuthenticator(self):

return Authenticator(self.username, self.password)

# Reads a file containing the username on the first line and the password on

# the second line. This is the format used by qilaunch.

def read_auth_file(path):

with open(path) as f:

username = f.readline().strip()

password = f.readline().strip()

return (username, password)

def make_application(argv=sys.argv):

"""

Create and return the qi.Application, with authentication set up

according to the command line options.

"""

# create the app and edit `argv` in place to remove the consumed

# arguments.

# As a side effect, if "-h" is in the list, it is replaced with "--help".

app = qi.Application(argv)

# Setup a non-intrusive parser, behaving like `qi.Application`'s own

# parser:

# * don't complain about unknown arguments

# * consume known arguments

# * if the "--help" option is present:

# * print its own options help

# * do not print the main app usage

# * do not call `sys.exit()`

parser = argparse.ArgumentParser(add_help=False, usage=argparse.SUPPRESS)

parser.add_argument(

"-a", "--authfile",

help="Path to the authentication config file. This file must "

"contain the username on the first line and the password on the "

"second line.")

if "--help" in argv:

parser.print_help()

return app

args, unparsed_args = parser.parse_known_args(argv[1:])

logins = read_auth_file(args.authfile) if args.authfile else ("nao", "nao")

factory = AuthenticatorFactory(*logins)

app.session.setClientAuthenticatorFactory(factory)

# edit argv in place.

# Note: this might modify sys.argv, like qi.Application does.

argv[1:] = unparsed_args

return app

if __name__ == "__main__":

parser = argparse.ArgumentParser()

parser.add_argument("--msg", default="Hello python")

app = make_application()

args = parser.parse_args()

logger = qi.Logger("authentication_with_application")

logger.info("connecting session")

app.start()

logger.info("fetching ALTextToSpeech service")

tts = app.session.service("ALTextToSpeech")

logger.info("Saying something")

tts.call("say", args.msg)