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#!/usr/bin/env python3
import os
import random
import select
import sys
import termios
from collections import deque
from optparse import OptionParser
from threading import Thread
from time import time
from application import log
from application.notification import IObserver, NotificationCenter, NotificationData
from application.python.queue import EventQueue
from eventlib.twistedutil import join_reactor
from twisted.internet import reactor
from twisted.internet.error import ReactorNotRunning
from zope.interface import implementer
from sipsimple.account import Account, AccountManager, BonjourAccount
from sipsimple.application import SIPApplication
from sipsimple.configuration import ConfigurationError, ConfigurationManager
from sipsimple.configuration.settings import SIPSimpleSettings
from sipsimple.core import ContactHeader, Engine, FromHeader, Header, Route, RouteHeader, SIPCoreError, SIPURI, Subscription, ToHeader
from sipsimple.lookup import DNSLookup
from sipsimple.payloads.messagesummary import MessageSummary
from sipsimple.storage import FileStorage
from sipsimple.threading import run_in_twisted_thread
from sipclient.configuration import config_directory
from sipclient.configuration.account import AccountExtension, BonjourAccountExtension
from sipclient.configuration.settings import SIPSimpleSettingsExtension
from sipclient.log import Logger
class InputThread(Thread):
def __init__(self, application):
Thread.__init__(self)
self.application = application
self.daemon = True
self._old_terminal_settings = None
def run(self):
notification_center = NotificationCenter()
while True:
for char in self._getchars():
if char == "\x04":
self.application.stop()
return
else:
notification_center.post_notification('SAInputWasReceived', sender=self, data=NotificationData(input=char))
def stop(self):
self._termios_restore()
def _termios_restore(self):
if self._old_terminal_settings is not None:
termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, self._old_terminal_settings)
def _getchars(self):
fd = sys.stdin.fileno()
if os.isatty(fd):
self._old_terminal_settings = termios.tcgetattr(fd)
new = termios.tcgetattr(fd)
new[3] = new[3] & ~termios.ICANON & ~termios.ECHO
new[6][termios.VMIN] = b'\000'
try:
termios.tcsetattr(fd, termios.TCSADRAIN, new)
if select.select([fd], [], [], None)[0]:
return sys.stdin.read(4192)
finally:
self._termios_restore()
else:
return os.read(fd, 4192)
@implementer(IObserver)
class SubscriptionApplication(object):
def __init__(self, account_name, target, trace_sip, trace_pjsip, trace_notifications):
self.account_name = account_name
self.target = target
self.input = InputThread(self)
self.output = EventQueue(lambda event: sys.stdout.write(event+'\n'))
self.logger = Logger(sip_to_stdout=trace_sip, pjsip_to_stdout=trace_pjsip, notifications_to_stdout=trace_notifications)
self.success = False
self.account = None
self.subscription = None
self.stopping = False
self._subscription_routes = None
self._subscription_timeout = 0.0
self._subscription_wait = 0.5
account_manager = AccountManager()
engine = Engine()
notification_center = NotificationCenter()
notification_center.add_observer(self, sender=account_manager)
notification_center.add_observer(self, sender=engine)
notification_center.add_observer(self, sender=self.input)
log.level.current = log.level.WARNING
def run(self):
account_manager = AccountManager()
configuration = ConfigurationManager()
engine = Engine()
# start output thread
self.output.start()
# startup configuration
Account.register_extension(AccountExtension)
BonjourAccount.register_extension(BonjourAccountExtension)
SIPSimpleSettings.register_extension(SIPSimpleSettingsExtension)
SIPApplication.storage = FileStorage(config_directory)
try:
configuration.start()
except ConfigurationError as e:
raise RuntimeError("Failed to load sipclient's configuration: %s\nIf an old configuration file is in place, delete it or move it and recreate the configuration using the sip_settings script." % str(e))
account_manager.load()
if self.account_name is None:
self.account = account_manager.default_account
else:
possible_accounts = [account for account in account_manager.iter_accounts() if self.account_name in account.id and account.enabled]
if len(possible_accounts) > 1:
raise RuntimeError("More than one account exists which matches %s: %s" % (self.account_name, ", ".join(sorted(account.id for account in possible_accounts))))
if len(possible_accounts) == 0:
raise RuntimeError("No enabled account that matches %s was found. Available and enabled accounts: %s" % (self.account_name, ", ".join(sorted(account.id for account in account_manager.get_accounts() if account.enabled))))
self.account = possible_accounts[0]
if self.account is None:
raise RuntimeError("Unknown account %s. Available accounts: %s" % (self.account_name, ', '.join(account.id for account in account_manager.iter_accounts())))
elif self.account == BonjourAccount():
raise RuntimeError("Cannot use bonjour account for message summary subscription")
elif not self.account.message_summary.enabled:
raise RuntimeError("Message summary is not enabled for account %s" % self.account.id)
for account in account_manager.iter_accounts():
if account == self.account:
account.sip.register = False
else:
account.enabled = False
self.output.put('Using account %s' % self.account.id)
settings = SIPSimpleSettings()
# start logging
self.logger.start()
# start the engine
engine.start(
auto_sound=False,
events={'message-summary': ['application/simple-message-summary']},
udp_port=settings.sip.udp_port if "udp" in settings.sip.transport_list else None,
tcp_port=settings.sip.tcp_port if "tcp" in settings.sip.transport_list else None,
tls_port=settings.sip.tls_port if "tls" in settings.sip.transport_list else None,
tls_verify_server=settings.tls.verify_server,
tls_ca_file=os.path.expanduser(settings.tls.ca_list) if settings.tls.ca_list else None,
tls_cert_file=os.path.expanduser(settings.tls.certificate) if settings.tls.certificate else None,
tls_privkey_file=os.path.expanduser(settings.tls.certificate) if settings.tls.certificate else None,
user_agent=settings.user_agent,
sample_rate=settings.audio.sample_rate,
rtp_port_range=(settings.rtp.port_range.start, settings.rtp.port_range.end),
trace_sip=settings.logs.trace_sip or self.logger.sip_to_stdout,
log_level=settings.logs.pjsip_level if (settings.logs.trace_pjsip or self.logger.pjsip_to_stdout) else 0
)
if self.target is None:
self.target = ToHeader(SIPURI(user=self.account.id.username, host=self.account.id.domain))
else:
if '@' not in self.target:
self.target = '%s@%s' % (self.target, self.account.id.domain)
if not self.target.startswith('sip:') and not self.target.startswith('sips:'):
self.target = 'sip:' + self.target
try:
self.target = ToHeader(SIPURI.parse(self.target))
except SIPCoreError:
self.output.put('Illegal SIP URI: %s' % self.target)
engine.stop()
return 1
self.output.put('Subscribing to %s for the message-summary event' % self.target.uri)
# start the input thread
self.input.start()
# start twisted
try:
reactor.run()
finally:
self.input.stop()
# stop the output
self.output.stop()
self.output.join()
self.logger.stop()
return 0 if self.success else 1
def stop(self):
self.stopping = True
if self.subscription is not None and self.subscription.state.lower() in ('accepted', 'pending', 'active'):
self.subscription.end(timeout=1)
else:
engine = Engine()
engine.stop()
def print_help(self):
message = 'Available control keys:\n'
message += ' t: toggle SIP trace on the console\n'
message += ' j: toggle PJSIP trace on the console\n'
message += ' n: toggle notifications trace on the console\n'
message += ' Ctrl-d: quit the program\n'
message += ' ?: display this help message\n'
self.output.put('\n'+message)
def handle_notification(self, notification):
handler = getattr(self, '_NH_%s' % notification.name, None)
if handler is not None:
handler(notification)
def _NH_SIPSubscriptionDidStart(self, notification):
route = Route(notification.sender.route_header.uri.host, notification.sender.route_header.uri.port, notification.sender.route_header.uri.parameters.get('transport', 'udp'))
self._subscription_routes = None
self._subscription_wait = 0.5
self.output.put('Subscription succeeded at %s:%d;transport=%s' % (route.address, route.port, route.transport))
self.success = True
def _NH_SIPSubscriptionChangedState(self, notification):
route = Route(notification.sender.route_header.uri.host, notification.sender.route_header.uri.port, notification.sender.route_header.uri.parameters.get('transport', 'udp'))
if notification.data.state.lower() == "pending":
self.output.put('Subscription pending at %s:%d;transport=%s' % (route.address, route.port, route.transport))
elif notification.data.state.lower() == "active":
self.output.put('Subscription active at %s:%d;transport=%s' % (route.address, route.port, route.transport))
def _NH_SIPSubscriptionDidEnd(self, notification):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=notification.sender)
self.subscription = None
route = Route(notification.sender.route_header.uri.host, notification.sender.route_header.uri.port, notification.sender.route_header.uri.parameters.get('transport', 'udp'))
self.output.put('Unsubscribed from %s:%d;transport=%s' % (route.address, route.port, route.transport))
self.stop()
def _NH_SIPSubscriptionDidFail(self, notification):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=notification.sender)
self.subscription = None
route = Route(notification.sender.route_header.uri.host, notification.sender.route_header.uri.port, notification.sender.route_header.uri.parameters.get('transport', 'udp'))
if notification.data.code:
status = ': %d %s' % (notification.data.code, notification.data.reason)
else:
status = ': %s' % notification.data.reason
self.output.put('Subscription failed at %s:%d;transport=%s%s' % (route.address, route.port, route.transport, status))
if self.stopping or notification.data.code in (401, 403, 407) or self.success:
self.success = False
self.stop()
else:
if not self._subscription_routes or time() > self._subscription_timeout:
self._subscription_wait = min(self._subscription_wait*2, 30)
timeout = random.uniform(self._subscription_wait, 2*self._subscription_wait)
reactor.callFromThread(reactor.callLater, timeout, self._subscribe)
else:
route = self._subscription_routes.popleft()
route_header = RouteHeader(route.uri)
self.subscription = Subscription(self.target.uri,
FromHeader(self.account.uri, self.account.display_name),
self.target,
ContactHeader(self.account.contact[route]),
b"message-summary",
route_header,
credentials=self.account.credentials,
refresh=self.account.sip.subscribe_interval)
notification_center.add_observer(self, sender=self.subscription)
self.subscription.subscribe(extra_headers=[Header('Supported', 'eventlist')], timeout=5)
def _NH_SIPSubscriptionGotNotify(self, notification):
if notification.data.body:
ms = MessageSummary.parse(notification.data.body)
self.output.put('\nReceived NOTIFY:\n' + ms.to_string())
self.print_help()
def _NH_DNSLookupDidSucceed(self, notification):
# create subscription and register to get notifications from it
self._subscription_routes = deque(notification.data.result)
route = self._subscription_routes.popleft()
route_header = RouteHeader(route.uri)
self.subscription = Subscription(self.target.uri,
FromHeader(self.account.uri, self.account.display_name),
self.target,
ContactHeader(self.account.contact[route]),
b"message-summary",
route_header,
credentials=self.account.credentials,
refresh=self.account.sip.subscribe_interval)
notification_center = NotificationCenter()
notification_center.add_observer(self, sender=self.subscription)
self.subscription.subscribe(extra_headers=[Header('Supported', 'eventlist')], timeout=5)
def _NH_SIPEngineDidStart(self, notification):
self._subscribe()
def _NH_DNSLookupDidFail(self, notification):
self.output.put('DNS lookup failed: %s' % notification.data.error)
timeout = random.uniform(1.0, 2.0)
reactor.callLater(timeout, self._subscribe)
def _NH_SAInputWasReceived(self, notification):
engine = Engine()
settings = SIPSimpleSettings()
key = notification.data.input
if key == 't':
self.logger.sip_to_stdout = not self.logger.sip_to_stdout
engine.trace_sip = self.logger.sip_to_stdout or settings.logs.trace_sip
self.output.put('SIP tracing to console is now %s.' % ('activated' if self.logger.sip_to_stdout else 'deactivated'))
elif key == 'j':
self.logger.pjsip_to_stdout = not self.logger.pjsip_to_stdout
engine.log_level = settings.logs.pjsip_level if (self.logger.pjsip_to_stdout or settings.logs.trace_pjsip) else 0
self.output.put('PJSIP tracing to console is now %s.' % ('activated' if self.logger.pjsip_to_stdout else 'deactivated'))
elif key == 'n':
self.logger.notifications_to_stdout = not self.logger.notifications_to_stdout
self.output.put('Notification tracing to console is now %s.' % ('activated' if self.logger.notifications_to_stdout else 'deactivated'))
elif key == '?':
self.print_help()
@run_in_twisted_thread
def _NH_SIPEngineDidEnd(self, notification):
self._stop_reactor()
@run_in_twisted_thread
def _NH_SIPEngineDidFail(self, notification):
self.output.put('Engine failed.')
self._stop_reactor()
def _NH_SIPEngineGotException(self, notification):
self.output.put('An exception occured within the SIP core:\n'+notification.data.traceback)
def _stop_reactor(self):
try:
reactor.stop()
except ReactorNotRunning:
pass
def _subscribe(self):
settings = SIPSimpleSettings()
self._subscription_timeout = time()+30
lookup = DNSLookup()
notification_center = NotificationCenter()
notification_center.add_observer(self, sender=lookup)
if self.account.sip.outbound_proxy is not None:
uri = SIPURI(host=self.account.sip.outbound_proxy.host, port=self.account.sip.outbound_proxy.port, parameters={'transport': self.account.sip.outbound_proxy.transport})
elif self.account.sip.always_use_my_proxy:
uri = SIPURI(host=self.account.id.domain)
else:
uri = self.target.uri
lookup.lookup_sip_proxy(uri, settings.sip.transport_list, tls_name=self.account.sip.tls_name)
if __name__ == "__main__":
description = "This script subscribes to the message summary event package for the specified SIP target. When a NOTIFY is received with the message summary information it will be displayed. The program will un-SUBSCRIBE and quit when CTRL+D is pressed."
usage = "%prog [options] [target-user@target-domain.com]"
parser = OptionParser(usage=usage, description=description)
parser.print_usage = parser.print_help
parser.add_option("-a", "--account-name", type="string", dest="account_name", help="The name of the account to use.")
parser.add_option("-s", "--trace-sip", action="store_true", dest="trace_sip", default=False, help="Dump the raw contents of incoming and outgoing SIP messages (disabled by default).")
parser.add_option("-j", "--trace-pjsip", action="store_true", dest="trace_pjsip", default=False, help="Print PJSIP logging output (disabled by default).")
parser.add_option("-n", "--trace-notifications", action="store_true", dest="trace_notifications", default=False, help="Print all notifications (disabled by default).")
options, args = parser.parse_args()
try:
application = SubscriptionApplication(options.account_name, args[0] if args else None, options.trace_sip, options.trace_pjsip, options.trace_notifications)
return_code = application.run()
except RuntimeError as e:
print("Error: %s" % str(e))
sys.exit(1)
except SIPCoreError as e:
print("Error: %s" % str(e))
sys.exit(1)
else:
sys.exit(return_code)

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