5a_create_socket_for_http_for_webpage_upload_and_download's Introduction

5a_Create_Socket_for_HTTP_for_webpage_upload_and_download

AIM :

To write a PYTHON program for socket for HTTP for web page upload and download

Algorithm

1.Start the program.
2.Get the frame size from the user
3.To create the frame based on the user request.
4.To send frames to server from the client side.
5.If your frames reach the server it will send ACK signal to client otherwise it will send NACK signal to client.
6.Stop the program

Program

import socket

def send_request(host, port, request):
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        s.connect((host, port))
        s.sendall(request.encode())
        response = s.recv(4096).decode()
    return response

def upload_file(host, port, filename):
    with open(filename, 'rb') as file:
        file_data = file.read()
        content_length = len(file_data)
        request = f"POST /upload HTTP/1.1\r\nHost: {host}\r\nContent-Length: {content_length}\r\n\r\n"
        request += file_data.decode()
        response = send_request(host, port, request)
    return response

def download_file(host, port, filename):
    request = f"GET /{filename} HTTP/1.1\r\nHost: {host}\r\n\r\n"
    response = send_request(host, port, request)
    # Assuming the response contains the file content after the headers
    file_content = response.split('\r\n\r\n', 1)[1]
    with open(filename, 'wb') as file:
        file.write(file_content.encode())

if __name__ == "__main__":
    host = 'example.com'
    port = 80

    # Upload file
    upload_response = upload_file(host, port, 'example.txt')
    print("Upload response:", upload_response)

    # Download file
    download_file(host, port, 'example.txt')
    print("File downloaded successfully.")