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# Copyright (C) 2009 Paraguay Educa, Martin Abente
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 US
import logging
import dbus
import gtk
from jarabe.model import network
def get_connection():
return network.find_gsm_connection()
def get_modem_settings():
modem_settings = {}
connection = get_connection()
if not connection:
return modem_settings
settings = connection.get_settings('gsm')
for setting in ('username', 'number', 'apn'):
modem_settings[setting] = settings.get(setting, '')
# use mutable container for nested function control variable
secrets_call_done = [False]
def _secrets_cb(secrets):
secrets_call_done[0] = True
if not secrets or not 'gsm' in secrets:
return
gsm_secrets = secrets['gsm']
modem_settings['password'] = gsm_secrets.get('password', '')
modem_settings['pin'] = gsm_secrets.get('pin', '')
def _secrets_err_cb(err):
secrets_call_done[0] = True
if isinstance(err, dbus.exceptions.DBusException) and \
err.get_dbus_name() == network.NM_AGENT_MANAGER_ERR_NO_SECRETS:
logging.debug('No GSM secrets present')
else:
logging.error('Error retrieving GSM secrets: %s', err)
# must be called asynchronously as this re-enters the GTK main loop
connection.get_secrets('gsm', _secrets_cb, _secrets_err_cb)
# wait til asynchronous execution completes
while not secrets_call_done[0]:
gtk.main_iteration()
return modem_settings
def _set_or_clear(_dict, key, value):
"""Update a dictionary value for a specific key. If value is None or
zero-length, but the key is present in the dictionary, delete that
dictionary entry."""
if value:
_dict[key] = value
return
if key in _dict:
del _dict[key]
def set_modem_settings(modem_settings):
username = modem_settings.get('username', '')
password = modem_settings.get('password', '')
number = modem_settings.get('number', '')
apn = modem_settings.get('apn', '')
pin = modem_settings.get('pin', '')
connection = get_connection()
if not connection:
network.create_gsm_connection(username, password, number, apn, pin)
return
settings = connection.get_settings()
gsm_settings = settings['gsm']
_set_or_clear(gsm_settings, 'username', username)
_set_or_clear(gsm_settings, 'password', password)
_set_or_clear(gsm_settings, 'number', number)
_set_or_clear(gsm_settings, 'apn', apn)
_set_or_clear(gsm_settings, 'pin', pin)
connection.update_settings(settings)
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