Server Client Socket Code

# SERVER CODE
import socket

# Creates a server socket
# Waits for the a client to connect on the specified port the
# Prints clients connection details


def get_port():
    return 8081


def get_socket_type():
    # IP Socket v4
    return socket.AF_INET


def get_socket_protocol():
    # TCP Socket
    return socket.SOCK_STREAM


def get_internal_address():
    return '127.0.0.1'


def get_external_address():
    return '0.0.0.0'


server_socket = socket.socket(get_socket_type(), get_socket_protocol())
server_socket.bind((get_external_address(), get_port()))
# Bind socket to use the specified address and port
# 0.0.0.0 = All addresses on this computer. server will accept external and internal connections
# Pick up on port 8081, typically used for testing

server_socket.listen()
print('Waiting for connection...')

connection_socket, address = server_socket.accept() # Waits for connection to be made to port 8081
# connection to the client
# address of the client - IP Address and Port
print('Connection from client established')

# send message to client
message = 'Hello, and thanks for connecting to this machine - ' # + address + ' - ' + connection_socket
data = message.encode()
connection_socket.send(data)

# receive message from client
data = connection_socket.recv(1024)
message = data.decode()
print(message)

# close connections
connection_socket.close()
server_socket.close()




# CLIENT CODE
import socket

# Creates a client
# Connect to server


def get_port():
    return 8081


def get_socket_type():
    # IP Socket v4
    return socket.AF_INET


def get_socket_protocol():
    # TCP Socket
    return socket.SOCK_STREAM


def get_internal_address():
    return '127.0.0.1'


def get_external_address():
    return '0.0.0.0'


client_socket = socket.socket(get_socket_type(), get_socket_protocol())
client_socket.connect((get_internal_address(), get_port()))
print('Connected to server')

# receive message from server
data = client_socket.recv(1024)
message = data.decode()
print(message)

# send message to server
message = 'Received message'
data = message.encode()
client_socket.send(data)

# closing connection
client_socket.close()