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#!/usr/bin/env python
"""
This is an attempt at bridging matrix clients into a Jitis meet room via Matrix
video call. It uses hard-coded xml strings overg XMPP BOSH. It can display one
of the streams from the Jitsi bridge until the second lot of SDP comes down and
we set the remote SDP at which point the stream ends. Our video never gets to
the bridge.
Requires:
npm install jquery jsdom
"""
import json
import subprocess
import time
import gevent
import grequests
from BeautifulSoup import BeautifulSoup
ACCESS_TOKEN = ""
MATRIXBASE = "https://matrix.org/_matrix/client/api/v1/"
MYUSERNAME = "@davetest:matrix.org"
HTTPBIND = "https://meet.jit.si/http-bind"
# HTTPBIND = 'https://jitsi.vuc.me/http-bind'
# ROOMNAME = "matrix"
ROOMNAME = "pibble"
HOST = "guest.jit.si"
# HOST="jitsi.vuc.me"
TURNSERVER = "turn.guest.jit.si"
# TURNSERVER="turn.jitsi.vuc.me"
ROOMDOMAIN = "meet.jit.si"
# ROOMDOMAIN="conference.jitsi.vuc.me"
class TrivialMatrixClient:
def __init__(self, access_token):
self.token = None
self.access_token = access_token
def getEvent(self):
while True:
url = (
MATRIXBASE
+ "events?access_token="
+ self.access_token
+ "&timeout=60000"
)
if self.token:
url += "&from=" + self.token
req = grequests.get(url)
resps = grequests.map([req])
obj = json.loads(resps[0].content)
print("incoming from matrix", obj)
if "end" not in obj:
continue
self.token = obj["end"]
if len(obj["chunk"]):
return obj["chunk"][0]
def joinRoom(self, roomId):
url = MATRIXBASE + "rooms/" + roomId + "/join?access_token=" + self.access_token
print(url)
headers = {"Content-Type": "application/json"}
req = grequests.post(url, headers=headers, data="{}")
resps = grequests.map([req])
obj = json.loads(resps[0].content)
print("response: ", obj)
def sendEvent(self, roomId, evType, event):
url = (
MATRIXBASE
+ "rooms/"
+ roomId
+ "/send/"
+ evType
+ "?access_token="
+ self.access_token
)
print(url)
print(json.dumps(event))
headers = {"Content-Type": "application/json"}
req = grequests.post(url, headers=headers, data=json.dumps(event))
resps = grequests.map([req])
obj = json.loads(resps[0].content)
print("response: ", obj)
xmppClients = {}
def matrixLoop():
while True:
ev = matrixCli.getEvent()
print(ev)
if ev["type"] == "m.room.member":
print("membership event")
if ev["membership"] == "invite" and ev["state_key"] == MYUSERNAME:
roomId = ev["room_id"]
print("joining room %s" % (roomId))
matrixCli.joinRoom(roomId)
elif ev["type"] == "m.room.message":
if ev["room_id"] in xmppClients:
print("already have a bridge for that user, ignoring")
continue
print("got message, connecting")
xmppClients[ev["room_id"]] = TrivialXmppClient(ev["room_id"], ev["user_id"])
gevent.spawn(xmppClients[ev["room_id"]].xmppLoop)
elif ev["type"] == "m.call.invite":
print("Incoming call")
# sdp = ev['content']['offer']['sdp']
# print "sdp: %s" % (sdp)
# xmppClients[ev['room_id']] = TrivialXmppClient(ev['room_id'], ev['user_id'])
# gevent.spawn(xmppClients[ev['room_id']].xmppLoop)
elif ev["type"] == "m.call.answer":
print("Call answered")
sdp = ev["content"]["answer"]["sdp"]
if ev["room_id"] not in xmppClients:
print("We didn't have a call for that room")
continue
# should probably check call ID too
xmppCli = xmppClients[ev["room_id"]]
xmppCli.sendAnswer(sdp)
elif ev["type"] == "m.call.hangup":
if ev["room_id"] in xmppClients:
xmppClients[ev["room_id"]].stop()
del xmppClients[ev["room_id"]]
class TrivialXmppClient:
def __init__(self, matrixRoom, userId):
self.rid = 0
self.matrixRoom = matrixRoom
self.userId = userId
self.running = True
def stop(self):
self.running = False
def nextRid(self):
self.rid += 1
return "%d" % (self.rid)
def sendIq(self, xml):
fullXml = (
"<body rid='%s' xmlns='http://jabber.org/protocol/httpbind' sid='%s'>%s</body>"
% (self.nextRid(), self.sid, xml)
)
# print "\t>>>%s" % (fullXml)
return self.xmppPoke(fullXml)
def xmppPoke(self, xml):
headers = {"Content-Type": "application/xml"}
req = grequests.post(HTTPBIND, verify=False, headers=headers, data=xml)
resps = grequests.map([req])
obj = BeautifulSoup(resps[0].content)
return obj
def sendAnswer(self, answer):
print("sdp from matrix client", answer)
p = subprocess.Popen(
["node", "unjingle/unjingle.js", "--sdp"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
)
jingle, out_err = p.communicate(answer)
jingle = jingle % {
"tojid": self.callfrom,
"action": "session-accept",
"initiator": self.callfrom,
"responder": self.jid,
"sid": self.callsid,
}
print("answer jingle from sdp", jingle)
res = self.sendIq(jingle)
print("reply from answer: ", res)
self.ssrcs = {}
jingleSoup = BeautifulSoup(jingle)
for cont in jingleSoup.iq.jingle.findAll("content"):
if cont.description:
self.ssrcs[cont["name"]] = cont.description["ssrc"]
print("my ssrcs:", self.ssrcs)
gevent.joinall([gevent.spawn(self.advertiseSsrcs)])
def advertiseSsrcs(self):
time.sleep(7)
print("SSRC spammer started")
while self.running:
ssrcMsg = (
"<presence to='%(tojid)s' xmlns='jabber:client'><x xmlns='http://jabber.org/protocol/muc'/><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' node='http://jitsi.org/jitsimeet' ver='0WkSdhFnAUxrz4ImQQLdB80GFlE='/><nick xmlns='http://jabber.org/protocol/nick'>%(nick)s</nick><stats xmlns='http://jitsi.org/jitmeet/stats'><stat name='bitrate_download' value='175'/><stat name='bitrate_upload' value='176'/><stat name='packetLoss_total' value='0'/><stat name='packetLoss_download' value='0'/><stat name='packetLoss_upload' value='0'/></stats><media xmlns='http://estos.de/ns/mjs'><source type='audio' ssrc='%(assrc)s' direction='sendre'/><source type='video' ssrc='%(vssrc)s' direction='sendre'/></media></presence>"
% {
"tojid": "%s@%s/%s" % (ROOMNAME, ROOMDOMAIN, self.shortJid),
"nick": self.userId,
"assrc": self.ssrcs["audio"],
"vssrc": self.ssrcs["video"],
}
)
res = self.sendIq(ssrcMsg)
print("reply from ssrc announce: ", res)
time.sleep(10)
def xmppLoop(self):
self.matrixCallId = time.time()
res = self.xmppPoke(
"<body rid='%s' xmlns='http://jabber.org/protocol/httpbind' to='%s' xml:lang='en' wait='60' hold='1' content='text/xml; charset=utf-8' ver='1.6' xmpp:version='1.0' xmlns:xmpp='urn:xmpp:xbosh'/>"
% (self.nextRid(), HOST)
)
print(res)
self.sid = res.body["sid"]
print("sid %s" % (self.sid))
res = self.sendIq(
"<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>"
)
res = self.xmppPoke(
"<body rid='%s' xmlns='http://jabber.org/protocol/httpbind' sid='%s' to='%s' xml:lang='en' xmpp:restart='true' xmlns:xmpp='urn:xmpp:xbosh'/>"
% (self.nextRid(), self.sid, HOST)
)
res = self.sendIq(
"<iq type='set' id='_bind_auth_2' xmlns='jabber:client'><bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/></iq>"
)
print(res)
self.jid = res.body.iq.bind.jid.string
print("jid: %s" % (self.jid))
self.shortJid = self.jid.split("-")[0]
res = self.sendIq(
"<iq type='set' id='_session_auth_2' xmlns='jabber:client'><session xmlns='urn:ietf:params:xml:ns:xmpp-session'/></iq>"
)
# randomthing = res.body.iq['to']
# whatsitpart = randomthing.split('-')[0]
# print "other random bind thing: %s" % (randomthing)
# advertise preence to the jitsi room, with our nick
res = self.sendIq(
"<iq type='get' to='%s' xmlns='jabber:client' id='1:sendIQ'><services xmlns='urn:xmpp:extdisco:1'><service host='%s'/></services></iq><presence to='%s@%s/d98f6c40' xmlns='jabber:client'><x xmlns='http://jabber.org/protocol/muc'/><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' node='http://jitsi.org/jitsimeet' ver='0WkSdhFnAUxrz4ImQQLdB80GFlE='/><nick xmlns='http://jabber.org/protocol/nick'>%s</nick></presence>"
% (HOST, TURNSERVER, ROOMNAME, ROOMDOMAIN, self.userId)
)
self.muc = {"users": []}
for p in res.body.findAll("presence"):
u = {}
u["shortJid"] = p["from"].split("/")[1]
if p.c and p.c.nick:
u["nick"] = p.c.nick.string
self.muc["users"].append(u)
print("muc: ", self.muc)
# wait for stuff
while True:
print("waiting...")
res = self.sendIq("")
print("got from stream: ", res)
if res.body.iq:
jingles = res.body.iq.findAll("jingle")
if len(jingles):
self.callfrom = res.body.iq["from"]
self.handleInvite(jingles[0])
elif "type" in res.body and res.body["type"] == "terminate":
self.running = False
del xmppClients[self.matrixRoom]
return
def handleInvite(self, jingle):
self.initiator = jingle["initiator"]
self.callsid = jingle["sid"]
p = subprocess.Popen(
["node", "unjingle/unjingle.js", "--jingle"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
)
print("raw jingle invite", str(jingle))
sdp, out_err = p.communicate(str(jingle))
print("transformed remote offer sdp", sdp)
inviteEvent = {
"offer": {"type": "offer", "sdp": sdp},
"call_id": self.matrixCallId,
"version": 0,
"lifetime": 30000,
}
matrixCli.sendEvent(self.matrixRoom, "m.call.invite", inviteEvent)
matrixCli = TrivialMatrixClient(ACCESS_TOKEN) # Undefined name
gevent.joinall([gevent.spawn(matrixLoop)])
|
