rawhttpget

#!/usr/bin/env python3

import os
import utils
from RawSockets import RawSockets

def main():
    """
    Purpose: Program entry point.
    :return: Void.
    """
    #1. Adding rule to iptables to drop outgoing TCP RST packets:
    os.system("sudo iptables -A OUTPUT -p tcp --tcp-flags RST RST -j DROP")

    # 2. Getting command line arguments:
    URL = utils.getCommandLineArguments() # "http://david.choffnes.com/classes/cs5700f22/10MB.log"
 
    # 3. Instantiate RawSockets object:
    raw_sockets = RawSockets(URL)

    # 4. Conduct three-way handshake with the server:
    raw_sockets.initThreeWayHandshake()

    # 5. Request data from the server via an HTTP GET request:
    fragmented_data_dict = raw_sockets.sendReceiveHttpGetRequest()

    # 6. Close the raw sockets:
    raw_sockets.closeSockets()

    # 7. Write data in fragmented_data_dict to local file:
    utils.writePacketDataToFile(URL, fragmented_data_dict)
   

if __name__ == "__main__":
    main()