253 lines
8.2 KiB
Python
253 lines
8.2 KiB
Python
# osmo_gsm_tester: DBUS client to talk to ofono
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#
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# Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH
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#
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# Author: Neels Hofmeyr <neels@hofmeyr.de>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from . import log, test, util
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from pydbus import SystemBus, Variant
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import time
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import pprint
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from gi.repository import GLib
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glib_main_loop = GLib.MainLoop()
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glib_main_ctx = glib_main_loop.get_context()
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bus = SystemBus()
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I_MODEM = 'org.ofono.Modem'
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I_NETREG = 'org.ofono.NetworkRegistration'
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I_SMS = 'org.ofono.MessageManager'
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class DeferredHandling:
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defer_queue = []
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def __init__(self, dbus_iface, handler):
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self.handler = handler
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self.subscription_id = dbus_iface.connect(self.receive_signal)
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def receive_signal(self, *args, **kwargs):
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DeferredHandling.defer_queue.append((self.handler, args, kwargs))
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@staticmethod
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def handle_queue():
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while DeferredHandling.defer_queue:
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handler, args, kwargs = DeferredHandling.defer_queue.pop(0)
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handler(*args, **kwargs)
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def dbus_connect(dbus_iface, handler):
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'''This function shall be used instead of directly connecting DBus signals.
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It ensures that we don't nest a glib main loop within another, and also
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that we receive exceptions raised within the signal handlers. This makes it
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so that a signal handler is invoked only after the DBus polling is through
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by enlisting signals that should be handled in the
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DeferredHandling.defer_queue.'''
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return DeferredHandling(dbus_iface, handler).subscription_id
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def poll():
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global glib_main_ctx
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while glib_main_ctx.pending():
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glib_main_ctx.iteration()
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DeferredHandling.handle_queue()
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def systembus_get(path):
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global bus
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return bus.get('org.ofono', path)
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def list_modems():
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root = systembus_get('/')
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return sorted(root.GetModems())
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class Modem(log.Origin):
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'convenience for ofono Modem interaction'
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msisdn = None
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sms_received_list = None
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def __init__(self, conf):
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self.conf = conf
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self.path = conf.get('path')
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self.set_name(self.path)
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self.set_log_category(log.C_BUS)
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self._dbus_obj = None
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self._interfaces = set()
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self._connected_signals = util.listdict()
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self.sms_received_list = []
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# init interfaces and connect to signals:
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self.dbus_obj()
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test.poll()
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def set_msisdn(self, msisdn):
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self.msisdn = msisdn
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def imsi(self):
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imsi = self.conf.get('imsi')
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if not imsi:
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with self:
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raise RuntimeError('No IMSI')
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return imsi
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def ki(self):
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return self.conf.get('ki')
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def _dbus_set_bool(self, name, bool_val, iface=I_MODEM):
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# to make sure any pending signals are received before we send out more DBus requests
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test.poll()
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val = bool(bool_val)
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self.log('Setting', name, val)
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self.dbus_obj()[iface].SetProperty(name, Variant('b', val))
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test.wait(self.property_is, name, bool_val)
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def property_is(self, name, val):
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is_val = self.properties().get(name)
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self.dbg(name, '==', is_val)
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return is_val is not None and is_val == val
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def set_powered(self, on=True):
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self._dbus_set_bool('Powered', on)
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def set_online(self, on=True):
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self._dbus_set_bool('Online', on)
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def dbus_obj(self):
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if self._dbus_obj is not None:
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return self._dbus_obj
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self._dbus_obj = systembus_get(self.path)
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dbus_connect(self._dbus_obj.PropertyChanged, self._on_property_change)
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self._on_interfaces_change(self.properties().get('Interfaces'))
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return self._dbus_obj
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def properties(self, iface=I_MODEM):
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return self.dbus_obj()[iface].GetProperties()
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def _on_property_change(self, name, value):
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if name == 'Interfaces':
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self._on_interfaces_change(value)
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def _on_interfaces_change(self, interfaces_now):
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now = set(interfaces_now)
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additions = now - self._interfaces
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removals = self._interfaces - now
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self._interfaces = now
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for iface in removals:
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self._on_interface_disabled(iface)
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for iface in additions:
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self._on_interface_enabled(iface)
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def _disconnect(self, interface_name):
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subscriptions = self._connected_signals.pop(interface_name, [])
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if subscriptions:
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self.dbg('Disconnecting', len(subscriptions), 'signals from', interface_name)
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for subscription in subscriptions:
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subscription.disconnect()
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def _on_interface_enabled(self, interface_name):
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self.dbg('Interface enabled:', interface_name)
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all_wanted_conns = {
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I_SMS: ( ('IncomingMessage', self._on_incoming_message), ),
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}
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want = all_wanted_conns.get(interface_name)
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if not want:
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return
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# sanity
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self._disconnect(interface_name)
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self.dbg('Connecting', len(want), 'signals to', interface_name)
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for signal, cb in want:
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dbus_iface = getattr(self.dbus_obj()[interface_name], signal)
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self._connected_signals.add(interface_name, dbus_connect(dbus_iface, cb))
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def _on_interface_disabled(self, interface_name):
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self.dbg('Interface disabled:', interface_name)
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self._disconnect(interface_name)
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def has_interface(self, name):
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return name in self._interfaces
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def connect(self, nitb):
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'set the modem up to connect to MCC+MNC from NITB config'
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self.log('connect to', nitb)
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prepowered = self.properties().get('Powered')
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if prepowered is not None and prepowered:
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self.set_online(False)
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self.set_powered(False)
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self.set_powered()
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self.set_online()
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if not self.has_interface(I_NETREG):
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self.log('No %r interface, hoping that the modem connects by itself' % I_NETREG)
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else:
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self.log('Use of %r interface not implemented yet, hoping that the modem connects by itself' % I_NETREG)
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def sms_send(self, to_msisdn, *tokens):
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if hasattr(to_msisdn, 'msisdn'):
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to_msisdn = to_msisdn.msisdn
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sms = Sms(self.msisdn, to_msisdn, 'from ' + self.name(), *tokens)
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self.log('sending sms to MSISDN', to_msisdn, sms=sms)
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if not self.has_interface(I_SMS):
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raise RuntimeError('Modem cannot send SMS, interface not active: %r' % I_SMS)
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mm = self.dbus_obj()[I_SMS]
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mm.SendMessage(to_msisdn, str(sms))
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return sms
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def _on_incoming_message(self, message, info):
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self.log('Incoming SMS:', repr(message))
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self.dbg(info=info)
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self.sms_received_list.append((message, info))
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def sms_was_received(self, sms):
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for msg, info in self.sms_received_list:
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if sms.matches(msg):
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self.log('SMS received as expected:', repr(msg))
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self.dbg(info=info)
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return True
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return False
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class Sms:
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_last_sms_idx = 0
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msg = None
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def __init__(self, from_msisdn=None, to_msisdn=None, *tokens):
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Sms._last_sms_idx += 1
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msgs = ['message nr. %d' % Sms._last_sms_idx]
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msgs.extend(tokens)
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if from_msisdn:
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msgs.append('from %s' % from_msisdn)
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if to_msisdn:
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msgs.append('to %s' % to_msisdn)
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self.msg = ', '.join(msgs)
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def __str__(self):
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return self.msg
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def __repr__(self):
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return repr(self.msg)
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def __eq__(self, other):
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if isinstance(other, Sms):
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return self.msg == other.msg
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return inself.msg == other
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def matches(self, msg):
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return self.msg == msg
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# vim: expandtab tabstop=4 shiftwidth=4
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