Slight refactor
This commit is contained in:
parent
29d1acddc1
commit
bad666456c
|
|
@ -114,3 +114,5 @@ dmypy.json
|
|||
# Pyre type checker
|
||||
.pyre/
|
||||
|
||||
.DS_Store
|
||||
.vscode/
|
||||
|
|
|
|||
240
trashtalker.py
240
trashtalker.py
|
|
@ -25,41 +25,45 @@ from random import shuffle
|
|||
##
|
||||
## If you can get this working using PJSUA2, a pull request would be greatly appreciated.
|
||||
|
||||
# This feels real hacky but I'm not sure there's a better way of creating a generic object that
|
||||
# you can add properties to.
|
||||
class State(object):
|
||||
pass
|
||||
state=State()
|
||||
|
||||
# Configuration
|
||||
LOG_LEVEL=0
|
||||
state.LOG_LEVEL=int(getenv('TT_LOG_LEVEL', 0))
|
||||
#TT_MEDIA_SOURCE and TT_LISTEN_PORT can be configured via env. variables
|
||||
sourcepath=getenv('TT_MEDIA_SOURCE', '/opt/media/')
|
||||
sipport=int(getenv('TT_LISTEN_PORT', 5062))
|
||||
state.source=getenv('TT_MEDIA_SOURCE', '/opt/media/')
|
||||
state.port=int(getenv('TT_LISTEN_PORT', 5062))
|
||||
# End configuration
|
||||
|
||||
# Application scaffolding
|
||||
# logger functions
|
||||
def pjlog(level, str, len):
|
||||
olog(level+1, "pjsip", str)
|
||||
#print() is used over bare print because pylint yells at me if I use bare print
|
||||
def elog(sev, source, line):
|
||||
print("%s %s: %s" % ("!"*sev, source, line))
|
||||
def PJLog(level, line, length):
|
||||
Log(level+1, "pjsip", line)
|
||||
def Log(level, source, line, error=False):
|
||||
pfx='*'
|
||||
if error:
|
||||
pfx='!'
|
||||
print("%s %s: %s" % (pfx*level, source, line))
|
||||
sys.stdout.flush()
|
||||
def olog(sev, source, line):
|
||||
print("%s %s: %s" % ("*"*sev, source, line))
|
||||
sys.stdout.flush()
|
||||
#SIGTERM handler; could be expanded to handle SIGKILL, SIGHUP, SIGUSR1, etc.
|
||||
#TODO: handle SIGHUP or SIGUSR1 for live-relaoding playlist
|
||||
#Generic signal handler
|
||||
def sighandle(_signo, _stack_frame):
|
||||
global mainloop
|
||||
olog(1, "sighandler", "caught signal %s" % _signo)
|
||||
global state
|
||||
Log(1, "sighandler", "caught signal %s" % _signo)
|
||||
if _signo == 1:
|
||||
#SIGHUP
|
||||
olog(1, "sighandler", "SIGHUP handled, reloading playlist")
|
||||
loadplaylist()
|
||||
Log(1, "sighandler", "SIGHUP invoked playlist reload")
|
||||
MediaLoadPlaylist()
|
||||
elif _signo == 2:
|
||||
#SIGINT
|
||||
olog(1, "sighandler", "SIGINT handled, hanging up all calls")
|
||||
pj.Lib.instance().hangup_all()
|
||||
Log(1, "sighandler", "SIGINT invoked current call flush")
|
||||
state.lib.hangup_all()
|
||||
elif _signo == 15:
|
||||
#SIGTERM
|
||||
olog(1, "sighandler", "SIGTERM handled, closing main loop")
|
||||
mainloop=False
|
||||
Log(1, "sighandler", "SIGTERM invoked app shutdown")
|
||||
state.running=False
|
||||
pass
|
||||
|
||||
# Classes
|
||||
|
|
@ -72,9 +76,10 @@ class AccountCb(pj.AccountCallback):
|
|||
pj.AccountCallback.__init__(self, account)
|
||||
|
||||
def on_incoming_call(self, call):
|
||||
olog(2, "event-call-in", "caller %s dialled in" % call.info().remote_uri)
|
||||
Log(2, "event-call-in", "caller %s dialled in" % call.info().remote_uri)
|
||||
call.set_callback(CallCb(call))
|
||||
#brief delay between ringing and connected means we can do playlist setup without a period of silence
|
||||
#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(SIPStates.ringing)
|
||||
# Call Callback class
|
||||
class CallCb(pj.CallCallback):
|
||||
|
|
@ -82,151 +87,132 @@ class CallCb(pj.CallCallback):
|
|||
pj.CallCallback.__init__(self, call)
|
||||
|
||||
def on_state(self):
|
||||
olog(3, "event-state-change", "SIP/2.0 %s (%s), call %s in call with party %s" %
|
||||
global 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))
|
||||
#call states not handled so far: CONNECTING
|
||||
#EARLY media state allows us to init the playlist while the call establishes
|
||||
if self.call.info().state == pj.CallState.EARLY:
|
||||
global files
|
||||
self.playlist=files
|
||||
self.playlist=state.playlist
|
||||
shuffle(self.playlist)
|
||||
self.playlist_instance=pj.Lib.instance().create_playlist(
|
||||
self.instmedia=state.lib.create_playlist(
|
||||
loop=True, filelist=self.playlist, label="trashtalklist")
|
||||
self.playlistslot=pj.Lib.instance().playlist_get_slot(self.playlist_instance)
|
||||
olog(4, "event-call-state-early", "initialised new trashtalk playlist instance")
|
||||
self.slotmedia=state.lib.playlist_get_slot(self.instmedia)
|
||||
Log(3, "event-call-state-early", "initialised new trashtalk playlist instance")
|
||||
#answer the call once playlist is prepared
|
||||
self.call.answer(SIPStates.answer)
|
||||
#CONFIRMED state indicates the call is connected
|
||||
elif self.call.info().state == pj.CallState.CONFIRMED:
|
||||
olog(3, "event-call-state-confirmed", "answered call")
|
||||
self.confslot=self.call.info().conf_slot
|
||||
pj.Lib.instance().conf_connect(self.playlistslot, self.confslot)
|
||||
olog(3, "event-call-conf-joined", "joined trashtalk to call")
|
||||
Log(3, "event-call-state-confirmed", "answered call")
|
||||
self.slotcall=self.call.info().conf_slot
|
||||
state.lib.conf_connect(self.slotmedia, self.slotcall)
|
||||
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 instance from call and destroyed it")
|
||||
Log(3, "event-call-state-disconnected", "call disconnected")
|
||||
state.lib.conf_disconnect(self.slotmedia, self.slotcall)
|
||||
state.lib.playlist_destroy(self.instmedia)
|
||||
Log(3, "event-call-conf-left", "removed trashtalk instance from call and destroyed it")
|
||||
|
||||
#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):
|
||||
if self.call.info().media_state == pj.MediaState.ACTIVE:
|
||||
olog(4, "event-media-state-change", "Media State transitioned to ACTIVE")
|
||||
Log(4, "event-media-state-change", "Media State transitioned to ACTIVE")
|
||||
else:
|
||||
olog(4, "event-media-state-change", "Media State transitioned to INACTIVE")
|
||||
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()
|
||||
#TODO: make max_calls configurable?
|
||||
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 PJInit():
|
||||
global state
|
||||
state.lib=pj.Lib()
|
||||
state.cfg_ua=pj.UAConfig()
|
||||
state.cfg_md=pj.MediaConfig()
|
||||
state.cfg_ua.max_calls, state.cfg_ua.user_agent = 32, "TrashTalker/1.0"
|
||||
state.cfg_md.no_vad, state.cfg_md.enable_ice = True, False
|
||||
state.lib.init(
|
||||
ua_cfg=state.cfg_ua,
|
||||
media_cfg=state.cfg_md,
|
||||
log_cfg=pj.LogConfig(
|
||||
level=state.LOG_LEVEL,
|
||||
callback=PJLog
|
||||
)
|
||||
)
|
||||
state.lib.set_null_snd_dev()
|
||||
state.lib.start(with_thread=True)
|
||||
state.transport=state.lib.create_transport(
|
||||
pj.TransportType.UDP,
|
||||
pj.TransportConfig(state.port)
|
||||
)
|
||||
state.account=state.lib.create_account_for_transport(
|
||||
state.transport,
|
||||
cb=AccountCb()
|
||||
)
|
||||
state.uri="sip:%s:%s" % (state.transport.info().host, state.transport.info().port)
|
||||
|
||||
def PjMediaInit():
|
||||
global transport
|
||||
global acct
|
||||
global sipuri
|
||||
global sipport
|
||||
global lib
|
||||
transport=lib.create_transport(pj.TransportType.UDP,
|
||||
pj.TransportConfig(sipport))
|
||||
acct=lib.create_account_for_transport(transport, cb=AccountCb())
|
||||
sipuri="sip:%s:%s" % (transport.info().host, transport.info().port)
|
||||
|
||||
def TrashTalkerInit():
|
||||
global mainloop
|
||||
while mainloop:
|
||||
def WaitLoop():
|
||||
global state
|
||||
while state.running:
|
||||
sleep(0.2)
|
||||
|
||||
def PjDeinit():
|
||||
global transport
|
||||
global acct
|
||||
global sipport
|
||||
global lib
|
||||
lib.hangup_all()
|
||||
global state
|
||||
state.lib.hangup_all()
|
||||
# allow time for cleanup before destroying objects
|
||||
lib.handle_events(timeout=250)
|
||||
state.lib.handle_events(timeout=250)
|
||||
try:
|
||||
acct.delete()
|
||||
lib.destroy()
|
||||
lib=None
|
||||
acct=None
|
||||
transport=None
|
||||
state.account.delete()
|
||||
state.lib.destroy()
|
||||
state.lib=state.account=state.transport=None
|
||||
except AttributeError:
|
||||
elog(1, "deinit", "AttributeError when clearing down pjsip, this is likely fine")
|
||||
Log(1, "deinit", "AttributeError when clearing down pjsip, this is likely fine", error=True)
|
||||
pass
|
||||
except pj.Error as e:
|
||||
elog(1, "deinit", "pjsip error when clearing down: %s" % str(e))
|
||||
Log(1, "deinit", "pjsip error when clearing down: %s" % str(e), error=True)
|
||||
pass
|
||||
|
||||
def loadplaylist():
|
||||
olog(2, "playlist-load", "loading playlist files")
|
||||
global sourcepath
|
||||
if not sourcepath.endswith('/'):
|
||||
olog(1, "playlist-load", "appending trailing / to TT_MEDIA_SOURCE")
|
||||
sourcepath="%s/" % sourcepath
|
||||
global files
|
||||
files=listdir(sourcepath)
|
||||
files[:]=[sourcepath+file for file in files]
|
||||
assert (len(files) > 1), "playlist path %s must contain more than one audio file" % sourcepath
|
||||
olog(1, "playlist-load",
|
||||
"load playlist from %s, got %s files" % (sourcepath, len(files)))
|
||||
def MediaLoadPlaylist():
|
||||
Log(3, "playlist-load", "loading playlist files")
|
||||
global state
|
||||
if not state.source.endswith('/'):
|
||||
Log(4, "playlist-load", "appending trailing / to TT_MEDIA_SOURCE")
|
||||
state.source="%s/" % state.source
|
||||
state.playlist=listdir(state.source)
|
||||
state.playlist[:]=[state.source+file for file in state.playlist]
|
||||
assert (len(state.playlist) > 1), "playlist path %s must contain more than one audio file" % state.source
|
||||
Log(3, "playlist-load",
|
||||
"load playlist from %s, got %s files" % (state.source, len(state.playlist)))
|
||||
|
||||
def main():
|
||||
olog(1, "init", "initialising trashtalker")
|
||||
global mainloop
|
||||
global files
|
||||
global sipuri
|
||||
global sourcepath
|
||||
mainloop=True
|
||||
Log(1, "init", "initialising trashtalker")
|
||||
global state
|
||||
state.running=True
|
||||
signal(SIGHUP, sighandle)
|
||||
signal(SIGINT, sighandle)
|
||||
signal(SIGTERM, sighandle)
|
||||
assert sourcepath.startswith('/'), "Environment variable TT_MEDIA_PATH must be an absolute path!"
|
||||
assert state.source.startswith('/'), "Environment variable TT_MEDIA_PATH must be an absolute path!"
|
||||
try:
|
||||
loadplaylist()
|
||||
MediaLoadPlaylist()
|
||||
except:
|
||||
elog(1, "playlist-load", "exception encountered while loading playlist from path %s" % sourcepath)
|
||||
Log(2, "playlist-load", "exception encountered while loading playlist from path %s" % state.source, error=True)
|
||||
raise Exception("Unable to load playlist")
|
||||
try:
|
||||
PjInit()
|
||||
PJInit()
|
||||
except:
|
||||
elog(1, "pj-init", "Unable to initialise pjsip library")
|
||||
raise Exception("Unable to initialise pjsip library")
|
||||
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")
|
||||
Log(1, "init-complete", "trashtalker listening on uri %s and serving %s media items from %s" % (state.uri, len(state.playlist), state.source))
|
||||
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 and serving media from %s" % (sipuri, sourcepath))
|
||||
try:
|
||||
TrashTalkerInit()
|
||||
WaitLoop()
|
||||
except pj.Error as e:
|
||||
elog(1, "pjsip-error", "trashtalker encountered pjsip exception %s" % str(e))
|
||||
mainloop=False
|
||||
Log(2, "pjsip-error", "trashtalker encountered pjsip exception %s" % str(e), error=True)
|
||||
state.running=False
|
||||
pass
|
||||
except KeyboardInterrupt:
|
||||
mainloop=False
|
||||
state.running=False
|
||||
pass
|
||||
olog(1, "deinit", "main loop exited, shutting down")
|
||||
Log(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=()
|
||||
Log(1, "deinit-complete", "trashtalker has shut down")
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
main()
|
||||
|
|
|
|||
Loading…
Reference in New Issue