def handle(self):
# Escribe dirección y puerto del cliente (de tupla client_address)
IP_CLIENT = str(self.client_address[0])
PUERTO_CLIENT = self.client_address[1]
nonce = 898989898798989898989
while 1:
# Leyendo línea a línea lo que nos envía el cliente
line = self.rfile.read()
method_client = line.decode('utf-8').split(' ')[0]
# Si no hay más líneas salimos del bucle infinito
if not line:
break
print("El cliente nos manda: \r\n" + line.decode('utf-8'))
data = line.decode('utf-8').split("\r\n")
if not method_client in methods:
answer = ("SIP/2.0 405 Method Not Allowed" + '\r\n\r\n')
self.wfile.write(bytes(answer, 'utf-8'))
print("Enviando: \r\n" + answer)
elif method_client == "REGISTER":
linea_troceada = line.decode('utf-8').split(" ")
if len(linea_troceada) == 4:
# Enviamos: SIP/2.0 401 Unauthorized
direccionsip_usuario = linea_troceada[1].split(':')[1]
expires = int(linea_troceada[-1])
puerto_cliente = (linea_troceada[1].split(':')[-1])
data = line.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "received",
IP_CLIENT, puerto_cliente, texto)
if expires > 0:
answer = ("SIP/2.0 401 Unauthorized" + "\r\n")
answer += "WWW Authenticate: nonce="
answer += str(nonce) + "\r\n\r\n"
self.wfile.write(bytes(answer, 'utf-8') + b'\r\n')
print("Enviando: \r\n" + answer)
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, puerto_cliente, texto)
elif expires == 0:
# Borramos a usuario expirado
del self.usuarios_registrados[direccionsip_usuario]
print("Borramos: ", direccionsip_usuario)
answer = "SIP/2.0 200 OK\r\n "
self.wfile.write((bytes(answer, 'utf-8')) + b'\r\n')
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, puerto_cliente, texto)
else:
# Comprobamos el response
direccionsip_client2 = linea_troceada[1].split(':')[1]
puerto_client2 = int(linea_troceada[1].split(':')[-1])
expires = int(linea_troceada[3].split('\r\n')[0])
response = linea_troceada[-1].split('=')[-1]
response = response.split('\r')[0]
lista = line.decode('utf-8').split("\r\n")
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "received",
IP_CLIENT, puerto_client2, texto)
m = hashlib.md5()
for usuario in passwords_usuarios.keys():
if usuario == direccionsip_client2:
password = passwords_usuarios[usuario]
m.update(bytes(password, 'utf-8'))
m.update(bytes(str(nonce), 'utf-8'))
if m.hexdigest() == response:
answer = "SIP/2.0 200 OK\r\n\r\n"
print("Enviamos :\r\n", answer)
self.wfile.write(bytes(answer, 'utf-8') + b'\r\n')
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, puerto_client2, texto)
hora_actual = time.time()
hora_exp = hora_actual + expires
info = [IP_CLIENT, puerto_client2,
hora_actual, hora_exp]
self.usuarios_registrados[direccionsip_client2] = info
#self.register2file()
else:
answer = "SIP/2.0 401 Unauthorized\r\n"
answer += "WWW Authenticate: nonce="
answer += str(nonce) + "\r\n\r\n"
self.wfile.write(bytes(answer, 'utf-8') + b'\r\n')
print("Enviando: \r\n" + answer)
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
self.register2file()
elif method_client == "INVITE":
data = line.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "received",
IP_CLIENT, PUERTO_CLIENT, texto)
# Enviamos INVITE a destinatorio correspondiente
linea_troceada = line.decode('utf-8').split(" ")
destino_invite = linea_troceada[1].split(':')[1]
print("Se lo enviamos a: ", destino_invite)
if destino_invite in self.usuarios_registrados:
IP_DESTINO = self.usuarios_registrados[destino_invite][0]
PUERTO_DEST = self.usuarios_registrados[destino_invite][1]
lista = line.decode("utf-8").split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_DESTINO, PUERTO_DEST, texto)
# Creamos socket
my_socket = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM)
my_socket.setsockopt(socket.SOL_SOCKET,
socket.SO_REUSEADDR, 1)
my_socket.connect((IP_DESTINO, int(PUERTO_DEST)))
my_socket.send(line)
data = my_socket.recv(1024)
print("Recibido: \r\n", data.decode('utf-8'))
lista = data.decode('utf-8').split("\r\n")
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "received",
IP_DESTINO, PUERTO_DEST, texto)
# Reenviamos al cliente
self.wfile.write(data)
print("Enviando: \r\n" + data.decode("utf-8"))
data = data.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
else:
# Usuario no registrado
answer = "SIP/2.0 404 User Not Found\r\n"
self.wfile.write(bytes(answer, 'utf-8') + b'\r\n')
print("Enviando: \r\n" + answer)
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
elif method_client == "ACK":
data = line.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "received",
IP_CLIENT, PUERTO_CLIENT, texto)
linea_troceada = line.decode('utf-8').split(" ")
destino_invite = linea_troceada[1].split(':')[1]
IP_DESTINO = self.usuarios_registrados[destino_invite][0]
PUERTO_DEST = self.usuarios_registrados[destino_invite][1]
print("Se lo enviamos a: ", destino_invite)
print("con IP: ", IP_DESTINO, " y PUERTO: ", PUERTO_DEST)
# Creamos socket
my_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
my_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
my_socket.connect((IP_DESTINO, int(PUERTO_DEST)))
my_socket.send(line)
lista = line.decode("utf-8").split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_DESTINO, PUERTO_DEST, texto)
elif method_client == "BYE":
data = line.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "received",
IP_CLIENT, PUERTO_CLIENT, texto)
linea_troceada = line.decode('utf-8').split(" ")
destino_invite = linea_troceada[1].split(':')[1]
print("Se lo enviamos a: ", destino_invite)
if destino_invite in self.usuarios_registrados:
IP_DESTINO = self.usuarios_registrados[destino_invite][0]
PUERTO_DEST = self.usuarios_registrados[destino_invite][1]
lista = line.decode("utf-8").split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_DESTINO, PUERTO_DEST, texto)
# Creamos socket
my_socket = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM)
my_socket.setsockopt(socket.SOL_SOCKET,
socket.SO_REUSEADDR, 1)
my_socket.connect((IP_DESTINO, int(PUERTO_DEST)))
my_socket.send(line)
data = my_socket.recv(1024)
print('Recibimos: \r\n', data.decode('utf-8'))
lista = data.decode('utf-8').split("\r\n")
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "received",
IP_DESTINO, PUERTO_DEST, texto)
# Reenviamos al cliente
self.wfile.write(data)
print("Enviando: \r\n" + data.decode("utf-8"))
data = data.decode('utf-8').split("\r\n")
texto = " ".join(data)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
else:
# Usuario no registrado
answer = "SIP/2.0 404 User Not Found\r\n"
self.wfile.write(bytes(answer, 'utf-8') + b'\r\n')
print("Enviando: \r\n" + answer)
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
else:
answer = ("SIP/2.0 400 Bad Request" + '\r\n\r\n')
self.wfile.write(bytes(answer, 'utf-8'))
print("Enviando: \r\n" + answer)
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOGSERVER, "sent_to",
IP_CLIENT, PUERTO_CLIENT, texto)
def handle(self):
# Escribe dirección y puerto del cliente (de tupla client_address)
IP_CLIENT = str(self.client_address[0])
PUERTO_CLIENT = int(self.client_address[1])
while 1:
# Leyendo línea a línea lo que nos envía el cliente
line = self.rfile.read()
method_client = line.decode('utf-8').split(' ')[0]
linea_deco = line.decode('utf-8').split(' ')
#Incluimos lo recibido en fichero log
texto = " ".join(line.decode('utf-8').split("\r\n"))
fich_log(PATH_LOG, "received", IP_CLIENT, PUERTO_CLIENT, texto)
# Si no hay más líneas salimos del bucle infinito
if not line:
break
print("El cliente nos manda: \r\n" + line.decode('utf-8'))
if not method_client in methods:
answer = ("SIP/2.0 405 Method Not Allowed" + '\r\n\r\n')
self.wfile.write(bytes(answer, 'utf-8'))
elif method_client == "INVITE":
# Mandamos código respuesta
IP_RTPDESTINO = linea_deco[4].split("\r\n")[0]
PUERTO_RTPDESTINO = linea_deco[7].split(" ")[-1]
self.RTP["ip"] = IP_RTPDESTINO
self.RTP["puerto"] = PUERTO_RTPDESTINO
answer = ("SIP/2.0 100 Trying" + '\r\n\r\n' +
"SIP/2.0 180 Ringing" + '\r\n\r\n' +
"SIP/2.0 200 OK" + '\r\n\r\n')
answer += "Content-Type: application/sdp\r\n\r\n"
answer += "v=0\r\n" + "o=" + USERNAME + " " + IP + " \r\n"
answer += "s=SIP's PARTY" + "\r\n" + "t=0" + "\r\n"
answer += "m=audio " + PUERTO_RTP + " RTP" + "\r\n"
print(" Codigo respuesta a INVITE: \r\n", answer)
self.wfile.write(bytes(answer, 'utf-8'))
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOG, "sent_to", IP_CLIENT, PUERTO_CLIENT, texto)
elif method_client == "BYE":
answer = "SIP/2.0 200 OK\r\n"
print(" Codigo respuesta a BYE: \r\n", answer)
self.wfile.write(bytes(answer, 'utf-8'))
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOG, "sent_to", IP_CLIENT, PUERTO_CLIENT, texto)
elif method_client == "ACK":
#Comenzamos envio RTP
aEjecutar = "./mp32rtp -i " + self.RTP["ip"]
aEjecutar += " -p " + self.RTP["puerto"]
aEjecutar += " < " + PATH_AUDIO
print("Vamos a ejecutar", aEjecutar)
os.system(aEjecutar)
else:
answer = ("SIP/2.0 400 Bad Request" + '\r\n\r\n')
self.wfile.write(bytes(answer, 'utf-8'))
lista = answer.split('\r\n')
texto = " ".join(lista)
fich_log(PATH_LOG, "sent_to", IP_CLIENT, PUERTO_CLIENT, texto)
