def handle_message(room_key, user, message):
message_obj = json.loads(message)
room = Room.by_room_key(room_key)
other_user = room.get_other_user(user) if room else None
if message_obj['type'] == 'bye':
# This would remove the other_user in loopback test too.
# So check its availability before forwarding Bye message.
delete_saved_messages(make_client_id(room_key, user))
room.remove_user(user)
logging.info('User ' + user + ' quit from room ' + room_key)
logging.info('Room ' + room_key + ' has state ' + str(room))
if other_user and other_user != user:
# channel_send_message(
# make_client_id(room, other_user), '{"type":"bye"}')
logging.info('Sent BYE to ' + other_user)
return 'bye'
if other_user or room_key == '1':
if message_obj['type'] == 'offer':
# Special case the loopback scenario.
if other_user == user or room_key == '1':
message = make_loopback_answer(message)
return message
# Workaround Chrome bug.
# Insert a=crypto line into offer from FireFox.
# TODO(juberti): Remove this call.
message = maybe_add_fake_crypto(message)
message = message.replace("\"offer\"", "\"answer\"")
if room_key == '1':
return message
if other_user:
on_message(room_key, other_user, message)
client_id = make_client_id(room_key, user)
messages = get_saved_messages(client_id)
message = ''
for i in messages:
message = i.msg
logger.debug(message)
return message
def post(self):
message = self.request.body
check = self.get_argument('check', None)
room_key = self.get_argument('r')
user = self.get_argument('u')
logging.info('message is ' + message)
logging.info('room_key is ' + room_key)
logging.info('user is ' + user)
with LOCK:
room = Room.by_room_key(room_key)
if check:
if room_key == '1':
status = 'True'
else:
status = str(room.has_user(user) and room.get_occupancy() == 2)
self.write(status)
elif room_key:
message = handle_message(room_key, user, message)
info = 'echo message %s' % message
logger.debug(info)
self.write(message)
else:
logging.warning('Unknown room ' + room_key)
def get(self):
"""Renders the main page. When this page is shown, we create a new
channel to push asynchronous updates to the client."""
room_key = sanitize(self.get_argument('r', None))
debug = self.get_argument('debug', None)
unittest = self.get_argument('unittest', None)
stun_server = self.get_argument('ss', None)
turn_server = self.get_argument('ts', None)
hd_video = self.get_argument('hd', 'true')
ts_pwd = self.get_argument('tp', None)
# set compat to true by default.
compat = self.get_argument('compat', 'true')
if debug == 'loopback':
# set compat to false as DTLS does not work for loopback.
compat = 'false'
# token_timeout for channel creation, default 30min, max 2 days, min 3min.
# token_timeout = self.request.get_range('tt',
# min_value = 3,
# max_value = 3000,
# default = 30)
if unittest:
# Always create a new room for the unit tests.
room_key = generate_random(8)
if not room_key:
room_key = generate_random(8)
redirect = '?r=' + room_key
redirect = append_url_arguments(self.request, redirect)
self.redirect(redirect)
logging.info('Redirecting visitor to base URL to ' + redirect)
return
user = None
initiator = 0
with LOCK:
# room = None
room = Room.by_room_key(room_key)
if not room and debug != "full":
# New room.
user = generate_random(8)
if debug == 'loopback':
initiator = 1
info = 'user0 %s added to test room %s' % (user, room_key)
logger.debug(info)
else:
initiator = 0
room = Room.new({'room_key': room_key})
room.add_user(user)
info = 'user1 %s added to new room %s' % (user, room_key)
logger.debug(info)
elif room and room.get_occupancy() == 1 and debug != 'full':
# 1 occupant.
user = generate_random(8)
room.add_user(user)
info = 'user2 %s added to room %s' % (user, room_key)
logger.debug(info)
initiator = 1
else:
# 2 occupants (full).
template = jinja_environment.get_template('full.html')
self.write(
template.render({'room_key': room_key}))
info = 'room %s is full' % (room_key)
logger.debug(info)
return
room_link = 'http://%s/videomeet?r=%s' % (self.request.host, room_key)
room_link = append_url_arguments(self.request, room_link)
pc_config = make_pc_config(stun_server, turn_server, ts_pwd)
pc_constraints = make_pc_constraints(compat)
offer_constraints = make_offer_constraints(compat)
media_constraints = make_media_constraints(hd_video)
template_values = {
'me': user,
'room_key': room_key,
'room_link': room_link,
'initiator': initiator,
'pc_config': json.dumps(pc_config),
'pc_constraints': json.dumps(pc_constraints),
'offer_constraints': json.dumps(offer_constraints),
'media_constraints': json.dumps(media_constraints)
}
if unittest:
target_page = 'test/test_' + unittest + '.html'
else:
target_page = 'videomeet.html'
template = jinja_environment.get_template(target_page)
self.write(template.render(template_values))
