python_remote_access/Controller/controller-screen.py

import socket
import os
#from test import update_image

# device's IP address
SERVER_HOST = "0.0.0.0" #(socket.gethostbyname(socket.gethostname()))
SERVER_PORT = 5002
# receive 4096 bytes each time
BUFFER_SIZE = 4096
SEPARATOR = "<SEPARATOR>"
# create the server socket
# TCP socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# bind the socket to our local address
s.bind((SERVER_HOST, SERVER_PORT))
# enabling our server to accept connections
# 5 here is the number of unaccepted connections that
# the system will allow before refusing new connections
# s.listen(5)
print(f"[*] Listening as {SERVER_HOST}:{SERVER_PORT}")
# accept connection if there is any
# client_socket, address = s.accept() 
# if below code is executed, that means the sender is connected
# print(f"[+] {address} is connected.")
# receive the file infos
# receive using client socket, not server socket
received = s.recv(BUFFER_SIZE).decode()
filename, filesize = received.split(SEPARATOR)
# remove absolute path if there is
#filename = os.path.basename(filename)
# convert to integer
filesize = int(filesize)
# start receiving the file from the socket
# and writing to the file stream

#with open(filename, "wb") as f:

while True:
    # read 1024 bytes from the socket (receive)
    bytes_read = s.recv(BUFFER_SIZE)
    if not bytes_read:    
        # nothing is received
        # file transmitting is done take another time
        break
    # write to the file the bytes we just received
    try:
	    hello = bytes_read.decode()
	    #update_image()
	    os.remove("screen.jpg")
	    os.rename(r"screen_download.jpg",r"screen.jpg")
	    print("I am moving the file")
    except:
	    f = open("screen_download.jpg", 'ab')
	    f.write(bytes_read)
	    print("I am adding to the file")
	    f.close()

# close the client socket
#client_socket.close()
# close the server socket
#s.close()