client.py

import mimetypes

from network import Network


def is_binary(file):
    try:
        with open(file, 'r') as f:
            f.read()
        return False
    except UnicodeDecodeError:
        f.close()
        return True


network = Network()
command = input("Type in a command: ")
if command == "send file: ":
    file = command.split(": ")[1]
    network.send("file start")
    print("run")

    datadict = dict()
    datadict["name"] = file
    datadict["encoding"] = mimetypes.guess_type(file)[1]
    datadict["binary"] = is_binary(file)

    block_count = 0
    blocks = list()

    with open(file, 'r' + 'b' if datadict["binary"] else '') as f:
        l = f.read(2048)
        while l:
            print("done")
            block_count += 1
            blocks.append(l)
            l = f.read(2048)

    datadict["blocks"] = block_count
    print(datadict)
    for b in blocks:
        network.send(b)

    if network.receive() != 1:
        print("Error in transmitting file.")