def RecieveRegister():
data = my_socket.recv(1024).decode('utf-8')
if data != '':
Server = Server = datos[3]['ip'] + ':' + datos[3]['puerto'] + ' '
if data.split(' ')[1] == '401':
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Receive')
print('Recibido 401')
NONCE = data.split('=')[1]
NONCE = NONCE.split('"')[1]
Password = datos[0]['passwd']
h = hashlib.sha1(bytes(Password, 'utf-8'))
h.update(bytes(NONCE, 'utf-8'))
Message = METHOD + ' sip:' + USER + ':' + str(SERVERPORT)
Message += ' SIP/2.0\r\n' + 'Expires: ' + sys.argv[3] + '\r\n'
Message += 'Authorization: Digest response=' + h.hexdigest()
Message += '\r\n\r\n'
my_socket.send(bytes(Message, 'utf-8'))
uaserver.AddtoLog(datos[4]['path'], Server + Message, 'Send')
RecieveRegister()
elif data.split(' ')[1] == '200':
print('Recibido 200 ok')
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Receive')
elif data.split(' ')[1] == '400':
print('Recubido 400')
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Receive')
def ManageInvite(datos):
USER = datos[0]['username']
SERVERPORT = int(datos[1]['puerto'])
Message = 'INVITE sip:' + sys.argv[3] + ' SIP/2.0\r\n'
Message += 'Content-Type: application/sdp\r\n\r\n' + 'v=0\r\n'
Message += 'o=' + USER + ' 127.0.0.1\r\n' + 's=hungry\r\n'
Message += 't=0\r\n' + 'm=audio ' + datos[2]['puerto'] + ' RTP\r\n'
my_socket.send(bytes(Message, 'utf-8'))
Server = datos[3]['ip'] + ':' + datos[3]['puerto'] + ' '
uaserver.AddtoLog(datos[4]['path'], Server + Message, 'Send')
data = my_socket.recv(1024).decode('utf-8')
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Receive')
if len(data.split(' ')) > 6:
if data.split(' ')[5] == '200':
Message = 'ACK sip:' + sys.argv[3] + ' SIP/2.0\r\n\r\n'
my_socket.send(bytes(Message, 'utf-8'))
uaserver.AddtoLog(datos[4]['path'], Server + Message, 'Send')
SendRTP(datos, data)
else:
print('Recibido ' + data)
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Error')
def SendtoServer(self, DATA):
userserv = DATA[0].split(':')[1].split(' ')[0]
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as my_socket:
my_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
my_socket.connect(
(self.DicUsers[userserv][1], int(self.DicUsers[userserv][2])))
Message = ''.join(DATA)
Server = '127.0.0.1:' + self.DicUsers[userserv][1] + ' '
uaserver.AddtoLog(self.datos[2]['path'], Server + Message, 'Send')
my_socket.send(bytes(Message, 'utf-8'))
if DATA[0].split(' ')[0] == 'INVITE':
try:
self.ReceiveAnsInvite(my_socket, userserv)
except ConnectionRefusedError:
print('No server listening at port ' +
self.DicUsers[userserv][2])
self.wfile.write(b"SIP/2.0 404 User Not Found\r\n\r\n")
Client = self.client_address[0] + ':'
Client += str(self.client_address[1]) + ' '
Message = "SIP/2.0 404 User Not Found"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message,
'Send')
elif DATA[0].split(' ')[0] == 'BYE':
self.ReceiveAnsBye(my_socket, userserv)
def ManageBye(datos):
Message = 'BYE sip:' + sys.argv[3] + ' SIP/2.0\r\n\r\n'
my_socket.send(bytes(Message, 'utf-8'))
Server = datos[3]['ip'] + ':' + datos[3]['puerto'] + ' '
uaserver.AddtoLog(datos[4]['path'], Server + Message, 'Send')
data = my_socket.recv(1024).decode('utf-8')
uaserver.AddtoLog(datos[4]['path'], Server + data, 'Receive')
def ReceiveAnsBye(self, my_socket, user):
data = my_socket.recv(1024)
datadec = data.decode('utf-8')
Server = self.DicUsers[user][1] + self.DicUsers[user][2] + ' '
uaserver.AddtoLog(self.datos[2]['path'], Server + datadec, 'Receive')
if datadec.split(' ')[1] == '200':
self.wfile.write(data)
uaserver.AddtoLog(self.datos[2]['path'], Server + datadec, 'Send')
else:
print('Recibido 400')
def RegisterManager(self, Data):
NONCE = '123456789'
if len(Data) < 3:
self.wfile.write(b'SIP/2.0 400 Bad Request')
else:
username = Data[0].split(':')[1]
serverport = Data[0].split(':')[2].split(' ')[0]
expires = time.time() + float(Data[1].split(' ')[1].split('\r')[0])
Client = self.client_address[0] + ':'
Client += str(self.client_address[1]) + ' '
self.ExpiresCheck()
DataBaseFich(self.datos[1]['path'], self.DicUsers)
print('recibe register')
if username in self.DicUsers:
self.wfile.write(b"SIP/2.0 200 OK\r\n\r\n")
uaserver.AddtoLog(self.datos[2]['path'],
Client + "SIP/2.0 200 OK\r\n\r\n", 'Send')
self.DicUsers[username][3] = expires
DataBaseFich(self.datos[1]['path'], self.DicUsers)
else:
if Data[2].split(':')[0] == 'Authorization':
Password = GetPassword(self.datos[1]['passwdpath'],
username)
h = hashlib.sha1(bytes(Password, 'utf-8'))
h.update(bytes(NONCE, 'utf-8'))
if Data[2].split('=')[1].split('\r')[0] == h.hexdigest():
self.wfile.write(b"SIP/2.0 200 OK\r\n\r\n")
self.DicUsers[username] = [
username, self.client_address[0], serverport,
expires,
time.time()
]
DataBaseFich(self.datos[1]['path'], self.DicUsers)
uaserver.AddtoLog(self.datos[2]['path'],
Client + "SIP/2.0 200 OK\r\n\r\n",
'Send')
else:
print('fallo en el nonce')
else:
Message = "SIP/2.0 401 Unauthorized" + '\r\n'
Message += 'WWW-Authenticate: Digest nonce="'
Message += NONCE + '"\r\n\r\n'
self.wfile.write(bytes(Message, 'utf-8'))
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message,
'Send')
def InviteManager(self, DATA):
print('recibe invite')
self.ExpiresCheck()
Clientin = DATA[4].split('=')[1].split(' ')[0] in self.DicUsers
Serverin = DATA[0].split(':')[1].split(' ')[0] in self.DicUsers
if Clientin and Serverin:
self.SendtoServer(DATA)
else:
self.wfile.write(b"SIP/2.0 404 User Not Found\r\n\r\n")
Client = self.client_address[0] + ':'
Client += str(self.client_address[1]) + ' '
Message = "SIP/2.0 404 User Not Found"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message, 'Send')
def SendRTP(datos, DATA):
ServerIP = DATA.split('\r\n')[8].split(' ')[1]
ServerRTPPort = DATA.split('\r\n')[11].split(' ')[1]
audio = datos[5]['path']
order = "./mp32rtp -i " + ServerIP + " -p " + ServerRTPPort + " < " + audio
os.system(order)
order = "cvlc rtp://@127.0.0.1:" + datos[2]['puerto']
os.system(order)
Server = ServerIP + ':'
Server += ServerRTPPort + ' '
uaserver.AddtoLog(datos[4]['path'], Server + 'Enviando RTP', 'Send')
def ManageRegister(datos):
USER = datos[0]['username']
SERVERPORT = int(datos[1]['puerto'])
Message = METHOD + ' sip:' + USER + ':' + str(SERVERPORT)
Message += ' SIP/2.0\r\n' + 'Expires: ' + sys.argv[3] + '\r\n\r\n'
my_socket.send(bytes(Message, 'utf-8'))
Server = datos[3]['ip'] + ':' + datos[3]['puerto'] + ' '
uaserver.AddtoLog(datos[4]['path'], Server + Message, 'Send')
RecieveRegister()
def handle(self):
DATA = []
for line in self.rfile:
DATA.append(line.decode('utf-8'))
Message = ' '.join(DATA)
Client = self.client_address[0] + ':'
Client += str(self.client_address[1]) + ' '
uaserver.AddtoLog(self.datos[2]['path'], Client + Message, 'Receive')
if DATA[0].split(' ')[0] == 'REGISTER':
self.RegisterManager(DATA)
elif DATA[0].split(' ')[0] == 'INVITE':
self.InviteManager(DATA)
elif DATA[0].split(' ')[0] == 'ACK':
if DATA[0].split(':')[1].split(' ')[0] in self.DicUsers:
self.SendtoServer(DATA)
else:
self.wfile.write(b"SIP/2.0 404 User Not Found\r\n\r\n")
Message = "SIP/2.0 404 User Not Found"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message,
'Send')
elif DATA[0].split(' ')[0] == 'BYE':
if DATA[0].split(':')[1].split(' ')[0] in self.DicUsers:
self.SendtoServer(DATA)
else:
self.wfile.write(b"SIP/2.0 404 User Not Found\r\n\r\n")
Message = "SIP/2.0 404 User Not Found"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message,
'Send')
else:
self.wfile.write(b"SIP/2.0 405 Method Not Allowed\r\n\r\n")
Message = "SIP/2.0 405 Method Not Allowed"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message, 'Send')
USER = datos[0]['username']
PASSWORD = datos[0]['passwd']
METHOD = sys.argv[2]
SERVERIP = datos[1]['ip']
if SERVERIP == '':
SERVERIP = '127.0.0.1'
SERVERPORT = int(datos[1]['puerto'])
PROXYIP = datos[3]['ip']
if PROXYIP == '':
PROXYIP = '127.0.0.1'
PROXYPORT = int(datos[3]['puerto'])
# Creamos el socket, lo configuramos y lo atamos a un servidor/puerto
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as my_socket:
my_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
my_socket.connect((PROXYIP, PROXYPORT))
try:
if METHOD == 'REGISTER':
ManageRegister(datos)
elif METHOD == 'INVITE':
ManageInvite(datos)
elif METHOD == 'BYE':
ManageBye(datos)
except ConnectionRefusedError:
Message = 'No server listening at ' + PROXYIP
Message += ' port ' + str(PROXYPORT)
print(Message)
uaserver.AddtoLog(datos[4]['path'], Message, 'Error')
self.SendtoServer(DATA)
else:
self.wfile.write(b"SIP/2.0 404 User Not Found\r\n\r\n")
Message = "SIP/2.0 404 User Not Found"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message,
'Send')
else:
self.wfile.write(b"SIP/2.0 405 Method Not Allowed\r\n\r\n")
Message = "SIP/2.0 405 Method Not Allowed"
uaserver.AddtoLog(self.datos[2]['path'], Message, 'Error')
uaserver.AddtoLog(self.datos[2]['path'], Client + Message, 'Send')
if __name__ == "__main__":
# Creamos servidor de eco y escuchamos
if len(sys.argv) != 2:
sys.exit('Usage: python3 uaserver.py config')
datos = parsercreator(sys.argv[1])
uaserver.AddtoLog(datos[2]['path'], 'Starting...', 'Status')
IP = datos[0]['ip']
PORT = int(datos[0]['puerto'])
serv = socketserver.UDPServer((IP, PORT), EchoHandler)
print("Server " + datos[0]['name'] + ' listening at port ' + str(PORT))
try:
serv.serve_forever()
except KeyboardInterrupt:
print('Cerrando servidor')
uaserver.AddtoLog(datos[2]['path'], 'Finshing.', 'Status')
