|
|
|
|
@ -1,185 +1,269 @@
|
|
|
|
|
#!/usr/bin/python2.7
|
|
|
|
|
import sys
|
|
|
|
|
#It shouldn't be a surprise that pjsua wouldn't be available on the local machine.
|
|
|
|
|
#pylint: disable=import-error
|
|
|
|
|
import pjsua as pj
|
|
|
|
|
from time import sleep
|
|
|
|
|
from os import listdir
|
|
|
|
|
from signal import signal, SIGTERM
|
|
|
|
|
from os import listdir, getenv
|
|
|
|
|
#It also shouldn't be a surprise that certain members of the signal library wouldn't be available on certain OSes (Windows).
|
|
|
|
|
#pylint: disable=no-name-in-module
|
|
|
|
|
from signal import signal, SIGHUP, SIGINT, SIGTERM
|
|
|
|
|
from random import shuffle
|
|
|
|
|
|
|
|
|
|
## NOTE:
|
|
|
|
|
## This library uses the PJSUA library which is officially deprecated
|
|
|
|
|
## The reason for this is that I couldn't get this to work with equivalent
|
|
|
|
|
## code for PJSUA2.
|
|
|
|
|
## At time of publishing, the only library version of pjsua available
|
|
|
|
|
## in the repos for Debian 9 is the deprecated PJSUA (python-pjsua)
|
|
|
|
|
## Please also be aware that, by default, playlist length is limited
|
|
|
|
|
## to 64 items. I can find no reason for this limitation, and it is
|
|
|
|
|
## specific to the python bindings for the PJSUA library.
|
|
|
|
|
## If you'd like to have a playlist longer than 64 items, you will need to
|
|
|
|
|
## recompile python-pjsua with the appropriate adjustment to _pjsua.c line 2515
|
|
|
|
|
## This script is designed to run either on the same machine or firewalled/segregated network segment
|
|
|
|
|
## as the telephony appliance(s) that will use it. While there should be no security risk to doing so,
|
|
|
|
|
## you should not have the SIP endpoint exposed by this application reachable on the public internet.
|
|
|
|
|
## This script should be configured to run automatically, and your telephony appliance should be configured
|
|
|
|
|
## to treat it as a no-authentication or "IP-based authentication" SIP trunk. Any number or name will
|
|
|
|
|
## be recognised and answered automatically by this script.
|
|
|
|
|
##
|
|
|
|
|
## If you can get this working using PJSUA2, a pull request would be greatly
|
|
|
|
|
## appreciated.
|
|
|
|
|
|
|
|
|
|
# Configuration
|
|
|
|
|
LOG_LEVEL=1
|
|
|
|
|
sourcepath="/opt/media/"
|
|
|
|
|
sipport=5062
|
|
|
|
|
# End configuration
|
|
|
|
|
|
|
|
|
|
# Application scaffolding
|
|
|
|
|
# logger functions
|
|
|
|
|
def pjlog(level, str, len):
|
|
|
|
|
olog(level+1, "pjsip", str)
|
|
|
|
|
def elog(sev, source, line):
|
|
|
|
|
print("%s %s: %s" % ("!"*sev, source, line))
|
|
|
|
|
sys.stdout.flush()
|
|
|
|
|
def olog(sev, source, line):
|
|
|
|
|
print("%s %s: %s" % ("*"*sev, source, line))
|
|
|
|
|
sys.stdout.flush()
|
|
|
|
|
## This script uses the PJSUA library which is officially deprecated
|
|
|
|
|
## The reason for this is that I couldn't get this to work with equivalent code for PJSUA2.
|
|
|
|
|
## At time of publishing, the only library version of pjsua available in the repos for Debian 9
|
|
|
|
|
## is the deprecated PJSUA (python-pjsua)
|
|
|
|
|
## Please also be aware that, by default, playlist length is limited to 64 items. I can find no reason
|
|
|
|
|
## for this limitation, and it is specific to the python bindings for the PJSUA library.
|
|
|
|
|
## If you'd like to have a playlist longer than 64 items, you will need to recompile python-pjsua
|
|
|
|
|
## with the appropriate adjustment to pjsip-apps/src/python/_pjsua.c line 2515, in the definition for
|
|
|
|
|
## PyObject py_pjsua_playlist_create(self, args): pj_str_t files[64];
|
|
|
|
|
## A possible idea would be to make this configurable.
|
|
|
|
|
##
|
|
|
|
|
## If you can get this working using PJSUA2, a pull request would be greatly appreciated.
|
|
|
|
|
|
|
|
|
|
# Utility classes, used basically as enums or generics
|
|
|
|
|
class State:
|
|
|
|
|
class States:
|
|
|
|
|
done=1
|
|
|
|
|
preinit=4
|
|
|
|
|
media_init=8
|
|
|
|
|
init=16
|
|
|
|
|
lib=None
|
|
|
|
|
running=False
|
|
|
|
|
status=0
|
|
|
|
|
sip_ringing=180
|
|
|
|
|
sip_answer=200
|
|
|
|
|
def Log(level, source, line, error=False):
|
|
|
|
|
pfx='*'
|
|
|
|
|
if error:
|
|
|
|
|
pfx='!'
|
|
|
|
|
print("%s %s: %s" % (pfx*level, source, line))
|
|
|
|
|
sys.stdout.flush()
|
|
|
|
|
def preinit(self):
|
|
|
|
|
self.Log(1, "preinit", "initialising from environment")
|
|
|
|
|
self.status=States.preinit
|
|
|
|
|
self.LOG_LEVEL=int(getenv('TT_LOG_LEVEL', 0))
|
|
|
|
|
self.port=int(getenv('TT_LISTEN_PORT', 55060))
|
|
|
|
|
self.source=getenv('TT_MEDIA_SOURCE', '/opt/media/')
|
|
|
|
|
assert self.source.startswith('/'), "TT_MEDIA_SOURCE must specify an absolute path!"
|
|
|
|
|
self.status&=States.done
|
|
|
|
|
def init(self):
|
|
|
|
|
self.status=States.init
|
|
|
|
|
self.lib=pj.Lib()
|
|
|
|
|
self.cfg_ua=pj.UAConfig()
|
|
|
|
|
self.cfg_md=pj.MediaConfig()
|
|
|
|
|
self.cfg_ua.max_calls, self.cfg_ua.user_agent = 32, "TrashTalker/1.0"
|
|
|
|
|
self.cfg_md.no_vad, self.cfg_md.enable_ice = True, False
|
|
|
|
|
self.cfg_lg=pj.LogConfig(
|
|
|
|
|
level=self.LOG_LEVEL,
|
|
|
|
|
callback=PJLog)
|
|
|
|
|
self.lib.init(
|
|
|
|
|
ua_cfg=cfg_ua,
|
|
|
|
|
media_cfg=cfg_md,
|
|
|
|
|
log_cfg=cfg_lg)
|
|
|
|
|
self.lib.set_null_snd_dev()
|
|
|
|
|
self.lib.start(
|
|
|
|
|
with_thread=True)
|
|
|
|
|
self.transport=self.lib.create_transport(
|
|
|
|
|
pj.TransportType.UDP,
|
|
|
|
|
pj.TransportConfig(self.port))
|
|
|
|
|
self.account=self.lib.create_account_for_transport(
|
|
|
|
|
self.transport,
|
|
|
|
|
cb=AccountCb())
|
|
|
|
|
self.uri="sip:%s:%s" % (self.transport.info().host, self.transport.info().port)
|
|
|
|
|
self.status&=States.done
|
|
|
|
|
def media_init(self):
|
|
|
|
|
self.Log(3, "playlist-load", "loading playlist files from media path %s" % self.source)
|
|
|
|
|
self.status=States.media_init
|
|
|
|
|
if not self.source.endswith('/'):
|
|
|
|
|
self.Log(4, "playlist-load", "appending trailing / to TT_MEDIA_SOURCE")
|
|
|
|
|
self.source="%s/" % self.source
|
|
|
|
|
self.playlist=listdir(self.source)
|
|
|
|
|
self.playlist[:]=[self.source+file for file in self.playlist]
|
|
|
|
|
assert (len(self.playlist) > 1), "playlist path %s must contain more than one audio file" % self.source
|
|
|
|
|
self.Log(3, "playlist-load", "loaded %s media items from path %s" % (len(self.playlist), self.source))
|
|
|
|
|
self.status&=States.done
|
|
|
|
|
def deinit(self):
|
|
|
|
|
assert (self.status==(States.init & States.done)), "State.deinit cannot be called when not fully initialised"
|
|
|
|
|
self.lib.hangup_all()
|
|
|
|
|
self.lib.handle_events(timeout=250)
|
|
|
|
|
try:
|
|
|
|
|
self.account.delete()
|
|
|
|
|
self.lib.destroy()
|
|
|
|
|
self.lib=self.account=self.transport=None
|
|
|
|
|
except AttributeError:
|
|
|
|
|
self.Log(1, "deinit", "Got an AttributeError exception during shutdown.", error=True)
|
|
|
|
|
pass
|
|
|
|
|
except pj.Error as e:
|
|
|
|
|
self.Log(1, "deinit", "Got a PJError exception during shutdown: %s" % str(e), error=True)
|
|
|
|
|
pass
|
|
|
|
|
self.status=0
|
|
|
|
|
def run(self):
|
|
|
|
|
self.running=True
|
|
|
|
|
while self.running:
|
|
|
|
|
sleep(0.2)
|
|
|
|
|
def stop(self):
|
|
|
|
|
self.running=False
|
|
|
|
|
|
|
|
|
|
#Utility and state definitions
|
|
|
|
|
state=State()
|
|
|
|
|
# Logging
|
|
|
|
|
def PJLog(level, line, length):
|
|
|
|
|
global state
|
|
|
|
|
state.Log(level+1, "pjsip", line)
|
|
|
|
|
# Signal handling
|
|
|
|
|
def sighandle(_signo, _stack_frame):
|
|
|
|
|
global mainloop
|
|
|
|
|
mainloop=False
|
|
|
|
|
global state
|
|
|
|
|
state.Log(1, "sighandler", "caught signal %s" % _signo)
|
|
|
|
|
if _signo == 1:
|
|
|
|
|
#SIGHUP
|
|
|
|
|
state.Log(1, "sighandler", "SIGHUP invoked playlist reload")
|
|
|
|
|
state.media_init()
|
|
|
|
|
elif _signo == 2:
|
|
|
|
|
#SIGINT
|
|
|
|
|
state.Log(1, "sighandler", "SIGINT invoked current call flush")
|
|
|
|
|
state.lib.hangup_all()
|
|
|
|
|
elif _signo == 15:
|
|
|
|
|
#SIGTERM
|
|
|
|
|
state.Log(1, "sighandler", "SIGTERM invoked app shutdown")
|
|
|
|
|
state.stop()
|
|
|
|
|
pass
|
|
|
|
|
|
|
|
|
|
# Classes
|
|
|
|
|
class SIPStates:
|
|
|
|
|
ringing=180
|
|
|
|
|
answer=200
|
|
|
|
|
|
|
|
|
|
# Account Callback class
|
|
|
|
|
class AccountCb(pj.AccountCallback):
|
|
|
|
|
def __init__(self, account=None):
|
|
|
|
|
pj.AccountCallback.__init__(self, account)
|
|
|
|
|
|
|
|
|
|
def on_incoming_call(self, call):
|
|
|
|
|
olog(2, "event-call-in", "caller %s dialled in" % call.info().remote_uri)
|
|
|
|
|
call.set_callback(CallCb(call))
|
|
|
|
|
call.answer(SIPStates.ringing)
|
|
|
|
|
sleep(0.3)
|
|
|
|
|
call.answer(SIPStates.answer)
|
|
|
|
|
|
|
|
|
|
def on_incoming_call(self, call):
|
|
|
|
|
global state
|
|
|
|
|
state.Log(2, "event-call-in", "caller %s dialled in" % call.info().remote_uri)
|
|
|
|
|
call.set_callback(CallCb(call))
|
|
|
|
|
#Answer call with SIP/2.0 180 RINGING
|
|
|
|
|
#This kicks in the EARLY media state, allowing us to initialise the playlist before the call connects
|
|
|
|
|
call.answer(state.sip_ringing)
|
|
|
|
|
# Call Callback class
|
|
|
|
|
class CallCb(pj.CallCallback):
|
|
|
|
|
def __init__(self, call=None):
|
|
|
|
|
pj.CallCallback.__init__(self, call)
|
|
|
|
|
|
|
|
|
|
def create_media(self):
|
|
|
|
|
global state
|
|
|
|
|
self.playlist=state.playlist
|
|
|
|
|
shuffle(self.playlist)
|
|
|
|
|
self.instmedia=state.lib.create_playlist(
|
|
|
|
|
loop=True, filelist=self.playlist, label="trashtalklist")
|
|
|
|
|
self.slotmedia=state.lib.playlist_get_slot(self.instmedia)
|
|
|
|
|
state.Log(4, "call-media-create", "created playlist for current call")
|
|
|
|
|
def connect_media(self):
|
|
|
|
|
global state
|
|
|
|
|
self.slotcall=self.call.info().conf_slot
|
|
|
|
|
state.lib.conf_connect(self.slotmedia, self.slotcall)
|
|
|
|
|
state.Log(4, "call-media-connect", "connected playlist media endpoint to call")
|
|
|
|
|
def disconnect_media(self):
|
|
|
|
|
global state
|
|
|
|
|
state.lib.conf_disconnect(self.slotmedia, self.slotcall)
|
|
|
|
|
state.Log(4, "call-media-disconnect", "disconnected playlist media endpoint from call")
|
|
|
|
|
def destroy_media(self):
|
|
|
|
|
global state
|
|
|
|
|
state.lib.playlist_destroy(self.instmedia)
|
|
|
|
|
self.instmedia=None
|
|
|
|
|
self.slotmedia=None
|
|
|
|
|
self.playlist=None
|
|
|
|
|
state.Log(4, "call-media-destroy", "destroyed playlist endpoint and object")
|
|
|
|
|
|
|
|
|
|
def on_state(self):
|
|
|
|
|
olog(3, "event-state-change", "SIP/2.0 %s (%s), call %s in call with party %s" %
|
|
|
|
|
global state
|
|
|
|
|
state.Log(2, "event-state-change", "SIP/2.0 %s (%s), call %s in call with party %s" %
|
|
|
|
|
(self.call.info().last_code, self.call.info().last_reason,
|
|
|
|
|
self.call.info().state_text, self.call.info().remote_uri))
|
|
|
|
|
if self.call.info().state == pj.CallState.CONFIRMED:
|
|
|
|
|
global files
|
|
|
|
|
self.playlist=files
|
|
|
|
|
shuffle(self.playlist)
|
|
|
|
|
olog(3, "event-call-state-confirmed", "answered call")
|
|
|
|
|
self.confslot=self.call.info().conf_slot
|
|
|
|
|
self.playlist_instance=pj.Lib.instance().create_playlist(
|
|
|
|
|
loop=True, filelist=self.playlist, label="trashtalklist")
|
|
|
|
|
self.playlistslot=pj.Lib.instance().playlist_get_slot(self.playlist_instance)
|
|
|
|
|
pj.Lib.instance().conf_connect(self.playlistslot, self.confslot)
|
|
|
|
|
olog(3, "event-call-conf-joined", "joined trashtalk to call")
|
|
|
|
|
#EARLY media state allows us to init the playlist while the call establishes
|
|
|
|
|
if self.call.info().state == pj.CallState.EARLY:
|
|
|
|
|
self.create_media()
|
|
|
|
|
state.Log(3, "event-call-state-early", "initialised new trashtalk playlist instance")
|
|
|
|
|
#answer the call once playlist is prepared
|
|
|
|
|
self.call.answer(state.sip_answer)
|
|
|
|
|
#CONFIRMED state indicates the call is connected
|
|
|
|
|
elif self.call.info().state == pj.CallState.CONFIRMED:
|
|
|
|
|
state.Log(3, "event-call-state-confirmed", "answered call")
|
|
|
|
|
self.connect_media()
|
|
|
|
|
state.Log(3, "event-call-conf-joined", "joined trashtalk to call")
|
|
|
|
|
#DISCONNECTED state indicates the call has ended (whether on our end or the caller's)
|
|
|
|
|
elif self.call.info().state == pj.CallState.DISCONNECTED:
|
|
|
|
|
olog(3, "event-call-state-disconnected", "call disconnected")
|
|
|
|
|
pj.Lib.instance().conf_disconnect(self.playlistslot, self.confslot)
|
|
|
|
|
pj.Lib.instance().playlist_destroy(self.playlist_instance)
|
|
|
|
|
olog(3, "event-call-conf-left", "removed trashtalk from call and destroyed it")
|
|
|
|
|
state.Log(3, "event-call-state-disconnected", "call disconnected")
|
|
|
|
|
self.disconnect_media()
|
|
|
|
|
self.destroy_media()
|
|
|
|
|
state.Log(3, "event-call-conf-left", "removed trashtalk instance from call and destroyed it")
|
|
|
|
|
|
|
|
|
|
def on_dtmf_digit(self, digit):
|
|
|
|
|
global state
|
|
|
|
|
state.Log(3, "dtmf-digit", "received DTMF signal: %s" % digit)
|
|
|
|
|
if digit == '*':
|
|
|
|
|
self.disconnect_media()
|
|
|
|
|
self.destroy_media()
|
|
|
|
|
self.create_media()
|
|
|
|
|
self.connect_media()
|
|
|
|
|
|
|
|
|
|
#I'm not sure what this is for, as all media handling is actually done within the SIP events above
|
|
|
|
|
def on_media_state(self):
|
|
|
|
|
global state
|
|
|
|
|
if self.call.info().media_state == pj.MediaState.ACTIVE:
|
|
|
|
|
olog(4, "event-media-state-change", "Media State transitioned to ACTIVE")
|
|
|
|
|
state.Log(4, "event-media-state-change", "Media State transitioned to ACTIVE")
|
|
|
|
|
else:
|
|
|
|
|
olog(4, "event-media-state-change", "Media State transitioned to INACTIVE")
|
|
|
|
|
state.Log(4, "event-media-state-change", "Media State transitioned to INACTIVE")
|
|
|
|
|
|
|
|
|
|
# Main logic functions
|
|
|
|
|
def PjInit():
|
|
|
|
|
global lib
|
|
|
|
|
global LOG_LEVEL
|
|
|
|
|
lib=pj.Lib()
|
|
|
|
|
cfg_ua=pj.UAConfig()
|
|
|
|
|
cfg_ua.max_calls=32
|
|
|
|
|
cfg_ua.user_agent="TrashTalker/1.0"
|
|
|
|
|
cfg_media=pj.MediaConfig()
|
|
|
|
|
cfg_media.no_vad=True
|
|
|
|
|
cfg_media.enable_ice=False
|
|
|
|
|
lib.init(ua_cfg=cfg_ua, media_cfg=cfg_media,
|
|
|
|
|
log_cfg=pj.LogConfig(level=LOG_LEVEL, callback=pjlog))
|
|
|
|
|
lib.set_null_snd_dev()
|
|
|
|
|
lib.start(with_thread=True)
|
|
|
|
|
|
|
|
|
|
def PjMediaInit():
|
|
|
|
|
global transport
|
|
|
|
|
global acct
|
|
|
|
|
global sipport
|
|
|
|
|
global lib
|
|
|
|
|
transport=lib.create_transport(pj.TransportType.UDP,
|
|
|
|
|
pj.TransportConfig(sipport))
|
|
|
|
|
acct=lib.create_account_for_transport(transport, cb=AccountCb)
|
|
|
|
|
|
|
|
|
|
def TrashTalkerInit():
|
|
|
|
|
global mainloop
|
|
|
|
|
global sipuri
|
|
|
|
|
sipuri="sip:%s:%s" % (transport.info().host, transport.info().port)
|
|
|
|
|
while mainloop:
|
|
|
|
|
sleep(0.2)
|
|
|
|
|
|
|
|
|
|
def PjDeinit():
|
|
|
|
|
global transport
|
|
|
|
|
global acct
|
|
|
|
|
global sipport
|
|
|
|
|
global lib
|
|
|
|
|
lib.hangup_all()
|
|
|
|
|
acct.delete()
|
|
|
|
|
lib.destroy()
|
|
|
|
|
acct=None
|
|
|
|
|
transport=None
|
|
|
|
|
lib=None
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def main():
|
|
|
|
|
olog(1, "init", "initialising trashtalker")
|
|
|
|
|
global mainloop
|
|
|
|
|
mainloop=True
|
|
|
|
|
global state
|
|
|
|
|
#Try to pre-init
|
|
|
|
|
try:
|
|
|
|
|
state.preinit()
|
|
|
|
|
assert (state.status==(State.States.preinit & State.States.done))
|
|
|
|
|
except AssertionError as e:
|
|
|
|
|
state.Log(1, "preinit", "AssertionError while pre-initialising: %s" % str(e))
|
|
|
|
|
raise Exception("Unable to start up TrashTalker. Check all configuration parameters are correct, and review logs.")
|
|
|
|
|
#Attach signal handlers
|
|
|
|
|
signal(SIGHUP, sighandle)
|
|
|
|
|
signal(SIGINT, sighandle)
|
|
|
|
|
signal(SIGTERM, sighandle)
|
|
|
|
|
#Try to initialise media
|
|
|
|
|
try:
|
|
|
|
|
global files
|
|
|
|
|
files=listdir(sourcepath)
|
|
|
|
|
files[:]=[sourcepath+file for file in files]
|
|
|
|
|
assert (len(files) > 1), "Playlist path must contain more than one audio file"
|
|
|
|
|
olog(1, "playlist-load",
|
|
|
|
|
"load playlist from %s, got %s files" % (sourcepath, len(files)))
|
|
|
|
|
state.media_init()
|
|
|
|
|
assert (state.status==(State.States.media_init & State.States.done))
|
|
|
|
|
except:
|
|
|
|
|
elog(1, "playlist-load", "exception encountered while loading playlist from path %s" % sourcepath)
|
|
|
|
|
state.Log(2, "playlist-load", "exception encountered while loading playlist from path %s" % state.source, error=True)
|
|
|
|
|
raise Exception("Unable to load playlist")
|
|
|
|
|
#Try to initialise main process; only fault here should be if the configured listening port is unavailable to us
|
|
|
|
|
try:
|
|
|
|
|
PjInit()
|
|
|
|
|
state.init()
|
|
|
|
|
assert (state.status==(State.States.init & State.States.done))
|
|
|
|
|
except:
|
|
|
|
|
elog(1, "pj-init", "Unable to initialise pjsip library")
|
|
|
|
|
raise Exception("Unable to initialise pjsip library")
|
|
|
|
|
state.Log(2, "pj-init", "Unable to initialise pjsip library; please check media path and SIP listening port are correct", error=True)
|
|
|
|
|
raise Exception("Unable to initialise pjsip library; please check media path and SIP listening port are correct")
|
|
|
|
|
state.Log(1, "init-complete", "trashtalker listening on uri %s and serving %s media items from %s" % (state.uri, len(state.playlist), state.source))
|
|
|
|
|
#Enter main loop
|
|
|
|
|
try:
|
|
|
|
|
PjMediaInit()
|
|
|
|
|
except:
|
|
|
|
|
elog(1, "pj-media-init", "Unable to initialise pjsip media or transport")
|
|
|
|
|
raise Exception("Unable to initialise pjsip media or transport")
|
|
|
|
|
olog(1, "init-complete", "trashtalker listening on uri %s" % sipuri)
|
|
|
|
|
try:
|
|
|
|
|
TrashTalkerInit()
|
|
|
|
|
state.run()
|
|
|
|
|
except pj.Error as e:
|
|
|
|
|
elog(1, "pjsip-error", "trashtalker encountered pjsip exception %s" % str(e))
|
|
|
|
|
mainloop=False
|
|
|
|
|
state.Log(2, "pjsip-error", "trashtalker encountered pjsip exception %s" % str(e), error=True)
|
|
|
|
|
state.stop()
|
|
|
|
|
pass
|
|
|
|
|
olog(1, "deinit", "main loop exited, shutting down")
|
|
|
|
|
PjDeinit()
|
|
|
|
|
olog(1, "deinit-complete", "trashtalker has shut down")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
lib=None
|
|
|
|
|
acct=None
|
|
|
|
|
transport=None
|
|
|
|
|
sipuri=None
|
|
|
|
|
mainloop=False
|
|
|
|
|
files=()
|
|
|
|
|
except KeyboardInterrupt:
|
|
|
|
|
state.stop()
|
|
|
|
|
pass
|
|
|
|
|
state.Log(1, "deinit", "main loop exited, shutting down")
|
|
|
|
|
state.deinit()
|
|
|
|
|
state.Log(1, "deinit", "trashtalker has shut down")
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
|
main()
|
|
|
|
|
main()
|
|
|
|
|
|
Maff
Matthew Connelly
Maff