def rsendBye(self, ua_toSend, ua_genred, Ip_Client, Port_Client, line):
"""
Metodo que reenvia un BYE de un cliente a un servidor.
"""
if ua_toSend in self.diccRegister:
ServAttr = self.findPort(ua_toSend)
my_socket = self.conectServer(ServAttr[1])
try:
# Enviamos el INVITE y recibimos respuesta
my_socket.send(bytes(line, 'utf-8') + b'\r\n')
received = my_socket.recv(1024).decode('utf-8')
print("-----------------------------")
print ("Received and reSend to " + ua_genred)
print(received.split("\r\n")[0])
# Se lo enviamos respues a UAclient q origino el INVITE
if received.split("\r\n")[0] == "SIP/2.0 200 OK":
self.wfile.write(bytes(received.split("\r\n")[0], 'utf-8'))
mess = received.split("\r\n")[0]
messlog(LOG_PATH, " Sent to ", ServAttr[0],
ServAttr[0], mess)
except socket.error:
Answer = "Error: Server is not listening"
print(Answer)
my_socket.close()
messlog(LOG_PATH, " Cant conect ", ServAttr[0],
ServAttr[0], " make server")
else:
Answer = "SIP/2.0 404 User Not Found\r\n"
self.wfile.write(bytes(Answer, 'utf-8') + b'\r\n')
print("-----------------------------")
print("Sending... \r\n" + Answer)
mess = Answer.split("\r\n")[0]
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, mess)
def handle(self):
while 1:
Ip_Client = str(self.client_address[0])
Port_Client = str(self.client_address[1])
# Leyendo línea a línea lo que nos envía el cliente
line = self.rfile.read().decode('utf-8')
if line != "":
print("Received...\r\n" + line)
mess = line.split("\r\n")[0]
# Si no hay más líneas salimos del bucle infinito
if not line:
break
# Observamos el metodo.
METODO = line.split(" ")[0]
if METODO == "INVITE":
ua_genred = line.split("\r\n")[0].split(":")[1].split(" ")[0]
ua_origin = line.split("\r\n")[4].split("=")[1].split(" ")[0]
RTP_IP = line.split("\r\n")[4].split("=")[1].split(" ")[1]
RTP_PORT = line.split("\r\n")[7].split(" ")[1]
self.diccResend[ua_origin] = [RTP_IP, RTP_PORT]
Answer = "SIP/2.0 100 Trying\r\n"
Answer += "SIP/2.0 180 Ring\r\n"
Answer += "SIP/2.0 200 OK\r\n"
Answer += "Content-Type: application/sdpr\n"
Answer += "\r\nv=0\r\n"
Answer += "o=" + ua_genred + " " + SER_IP + "\r\n"
Answer += "s=misesion\r\n" + "t=0\r\n"
Answer += "m=audio " + AUDIO_PORT + " RTP\r\n"
self.wfile.write(bytes(Answer, 'utf-8'))
print("-----------------------------")
print ("Sending...\r\n" + Answer)
mess = Answer.split("\r\n")[0]
messlog(LOG_PATH, " Sent to ", PROX_IP, PROX_PORT,
mess + "...")
if METODO == "ACK":
for usuario in self.diccResend:
Answer = "to " + self.diccResend[usuario][0]
Answer += ":" + self.diccResend[usuario][1]
print("-----------------------------")
print("Sending audio... \r\n" + Answer)
aEjecutar = './mp32rtp -i ' + self.diccResend[usuario][0]
aEjecutar += ' -p ' + self.diccResend[usuario][1]
aEjecutar += ' < ' + AUDIO_FILE
print("-----------------------------")
print("Vamos a ejecutar", aEjecutar)
os.system(aEjecutar)
messlog(LOG_PATH, " Sent to ", self.diccResend[usuario][0],
self.diccResend[usuario][1], " RTP AUDIO...")
if METODO == "BYE":
Answer = "SIP/2.0 200 OK\r\n"
self.wfile.write(bytes(Answer, 'utf-8'))
print("-----------------------------")
print ("Sending...\r\n" + Answer)
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, " RTP AUDIO...")
def handle(self):
while 1:
# Mirar si ya ha expirado para eliminar del diccRegister
self.eliminarDicc()
self.register2database(DATABASE_PATH)
line = self.rfile.read().decode('utf-8')
if line != "":
print("-----------------------------")
print ("Received...\r\n" + line)
# Si no hay más líneas salimos del bucle infinito
if not line:
break
# Observamos el METODO.
METODO = line.split(" ")[0]
Ip_Client = str(self.client_address[0])
Port_Client = str(self.client_address[1])
mess = line.split("\r\n")[0]
messlog(LOG_PATH, " Received from ", Ip_Client, Port_Client, mess)
if METODO == "REGISTER":
USER_NAME = line.split(":")[1]
SER_PORT = line.split(":")[2].split(" ")[0]
EXPIRES = line.split(":")[3][1:5].split("\r\n\r\n")[0]
# Distiguimos si llega un register con NONCE
longi = line.split(" ")
NONCE = str(1234)
if len(longi) < 6:
if int(EXPIRES) == 0:
if USER_NAME in self.diccRegister:
print ("Expired from", USER_NAME, "out")
print ("Deleting: " + USER_NAME)
# eliminamos de la lista de registrados
del self.diccRegister[USER_NAME]
Answer = "SIP/2.0 200 OK"
print("-----------------------------")
print("Sending... \r\n" + Answer)
self.wfile.write(bytes(Answer+"\r\n\r\n", 'utf-8'))
else:
print (USER_NAME + " not registered")
mess = "Expired= 0"
messlog(LOG_PATH, " Deleting ", Ip_Client,
Port_Client, mess)
elif int(EXPIRES) > 0:
Answer = "SIP/2.0 401 UNAUTHORIZED\r\n"
Answer += "WWW Authenticate: nonce=" + NONCE
AAA = Answer.split("\r\n")
print("-----------------------------")
print("Sending... \r\n" + Answer)
self.wfile.write(bytes(Answer+"\r\n\r\n", 'utf-8'))
mess = Answer.split("\r\n")[0]
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, mess)
elif len(longi) == 6:
EXPIRES = line.split("\r\n")[1].split(":")[1]
fichero = open(PASS_PATH, 'r')
listUsers = fichero.readlines()
fichero.close()
for users in listUsers:
user = users.split(":")[0]
if user == USER_NAME:
PASSW = users.split(":")[1].split("\n")[0]
break
response = line.split("\r\n")[2].split(":")[2]
m = hashlib.md5()
m.update(bytes(PASSW, 'utf-8') + bytes(NONCE, 'utf-8'))
check = m.hexdigest()
if check == response:
Answer = "SIP/2.0 200 OK"
print("-----------------------------")
print("Sending... \r\n" + Answer)
self.wfile.write(bytes(Answer+"\r\n\r\n", 'utf-8'))
valor = int(EXPIRES) + int(time())
nowTime = strftime("%Y%m%d%H%M%S", gmtime(time()))
termTime = strftime("%Y%m%d%H%M%S", gmtime(valor))
# Añadimos a la lista de registrados.
self.diccRegister[USER_NAME] = [nowTime, "127.0.0.1",
SER_PORT, termTime]
# Guardos en el DATABASE_PATH
self.register2database(DATABASE_PATH)
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, Answer)
elif METODO == "BYE":
ua_genred = line.split(":")[1]
PORT = line.split(":")[2].split(" ")[0]
ua_toSend = line.split(" ")[3].split("\r\n")[0]
self.rsendBye(ua_toSend, ua_genred, Ip_Client,
Port_Client, line)
elif METODO == "INVITE":
ua_toSend = line.split("\r\n")[0].split(":")[1].split(" ")[0]
ua_genred = line.split("\r\n")[4].split("=")[1].split(" ")[0]
if ua_toSend in self.diccRegister:
# Obtenemos puerto del UAserver
# a quien va dirigido el INVITE
ServAttr = self.findPort(ua_toSend)
# Nos conectamos al UAserver
my_socket = self.conectServer(ServAttr[1])
try:
# Enviamos el INVITE y recibimos respuesta
my_socket.send(bytes(line, 'utf-8') + b'\r\n')
received = my_socket.recv(1024).decode('utf-8')
print("-----------------------------")
print ("Received and reSend to " + ua_genred)
print(received)
# Se lo enviamos respues a UAclient q origino el INVITE
self.wfile.write(bytes(received, 'utf-8'))
messlog(LOG_PATH, " Sent to ", ServAttr[0],
ServAttr[0], mess)
except socket.error:
Answer = "Error: Server is not listening"
print(Answer)
my_socket.close()
messlog(LOG_PATH, " Cant conect ", ServAttr[0],
ServAttr[0], " make server")
else:
Answer = "SIP/2.0 404 User Not Found\r\n"
self.wfile.write(bytes(Answer, 'utf-8') + b'\r\n')
print("-----------------------------")
print("Sending... \r\n" + Answer)
mess = Answer.split("\r\n")[0]
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, mess)
elif METODO == "ACK":
# Enviamos mensaje a los demas servidores excepto el nuertro
ua_toSend = line.split(":")[1].split(" ")[0]
if ua_toSend in self.diccRegister:
ServAttr = self.findPort(ua_toSend)
# Nos conectamos al UAserver
my_socket = self.conectServer(ServAttr[1])
try:
my_socket.send(bytes(line, 'utf-8') + b'\r\n')
print("-----------------------------")
print("Sending...\r\n" + line)
ServAttr = self.findPort(ua_toSend)
messlog(LOG_PATH, " Sent to ", ServAttr[0],
ServAttr[1], mess)
except socket.error:
Answer = "Error: Server is not listening"
print(Answer)
my_socket.close()
if line.split("\r\n")[0] == "SIP/2.0 405 Method Not Allowed":
Answer = "SIP/2.0 405 Method Not Allowed"
print("-----------------------------")
print("Sending...\r\n" + Answer)
self.wfile.write(bytes(Answer+"\r\n\r\n", 'utf-8'))
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, Answer)
elif line.split("\r\n")[0] == "SIP/2.0 400 Bad Request":
Answer = "SIP/2.0 400 Bad Request"
print("-----------------------------")
print("Sending...\r\n" + Answer)
self.wfile.write(bytes(Answer+"\r\n\r\n", 'utf-8'))
messlog(LOG_PATH, " Sent to ", Ip_Client,
Port_Client, Answer)
