sjb9774/server.py

## server.py
import socket
import select

if __name__ == "__main__":
    # Get socket file descriptor as a TCP socket using the IPv4 address family
    listener_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # Set some modes on the socket, not required but it's nice for our uses
    listener_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

    address_port = ("127.0.0.1", 8080)
    # leserve address and port
    listener_socket.bind(address_port)
    # listen for connections, a maximum of 1
    listener_socket.listen(1)
    print("Server listening @ 127.0.0.1:8080")

    # loop indefinitely to continuously check for new connections
    while True:
        # Poll the socket to see if there are any newly written data, note excess data dumped to "_" variables
        read_ready_sockets, _, _ = select.select(
            [listener_socket],  # list of items we want to check for read-readiness (just our socket)
            [],  # list of items we want to check for write-readiness (not interested)
            [],  # list of items we want to check for "exceptional" conditions (also not interested)
            0  # timeout of 0 seconds, makes the method call non-blocking
        )
        # if a value was returned here then we have a connection to read from
        if read_ready_sockets:
            # select.select() returns a list of readable objects, so we'll iterate, but we only expect a single item
            for ready_socket in read_ready_sockets:
                # accept the connection from the client and get its socket object and address
                client_socket, client_address = ready_socket.accept()

                # read up to 4096 bytes of data from the client socket
                client_msg = client_socket.recv(4096)
                print(f"Client said: {client_msg.decode('utf-8')}")

                # Send a response to the client, notice it is a byte string
                client_socket.sendall(
                    bytes(f"""HTTP/1.1 200 OK\r\nContent-type: text/html\r\nSet-Cookie: ServerName=steveserver\r
                    \r\n
                    <!doctype html>
                    <html>
                        <head/>
                        <body>
                            <h1>Welcome to the server!</h1>
                            <h2>Server address: {address_port[0]}:{address_port[1]}</h2>
                            <h3>You're connected through address: {client_address[0]}:{client_address[1]}</h3>
                            <body>
                                <pre>{client_msg.decode("utf-8")}<pre>
                            </body>
                        </body>
                    </html>
                    \r\n\r\n
                    """, "utf-8")
                )
                try:
                    # close the connection
                    client_socket.close()
                except OSError:
                    # client disconnected first, nothing to do
                    pass
	import socket
	import select

	if __name__ == "__main__":
	# Get socket file descriptor as a TCP socket using the IPv4 address family
	listener_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	# Set some modes on the socket, not required but it's nice for our uses
	listener_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

	address_port = ("127.0.0.1", 8080)
	# leserve address and port
	listener_socket.bind(address_port)
	# listen for connections, a maximum of 1
	listener_socket.listen(1)
	print("Server listening @ 127.0.0.1:8080")

	# loop indefinitely to continuously check for new connections
	while True:
	# Poll the socket to see if there are any newly written data, note excess data dumped to "_" variables
	read_ready_sockets, _, _ = select.select(
	[listener_socket], # list of items we want to check for read-readiness (just our socket)
	[], # list of items we want to check for write-readiness (not interested)
	[], # list of items we want to check for "exceptional" conditions (also not interested)
	0 # timeout of 0 seconds, makes the method call non-blocking
	)
	# if a value was returned here then we have a connection to read from
	if read_ready_sockets:
	# select.select() returns a list of readable objects, so we'll iterate, but we only expect a single item
	for ready_socket in read_ready_sockets:
	# accept the connection from the client and get its socket object and address
	client_socket, client_address = ready_socket.accept()

	# read up to 4096 bytes of data from the client socket
	client_msg = client_socket.recv(4096)
	print(f"Client said: {client_msg.decode('utf-8')}")

	# Send a response to the client, notice it is a byte string
	client_socket.sendall(
	bytes(f"""HTTP/1.1 200 OK\r\nContent-type: text/html\r\nSet-Cookie: ServerName=steveserver\r
	\r\n
	<!doctype html>
	<html>
	<head/>
	<body>
	<h1>Welcome to the server!</h1>
	<h2>Server address: {address_port[0]}:{address_port[1]}</h2>
	<h3>You're connected through address: {client_address[0]}:{client_address[1]}</h3>
	<body>
	<pre>{client_msg.decode("utf-8")}<pre>
	</body>
	</body>
	</html>
	\r\n\r\n
	""", "utf-8")
	)
	try:
	# close the connection
	client_socket.close()
	except OSError:
	# client disconnected first, nothing to do
	pass