gfile.py

import requests
import os
import time


def download_file_from_google_drive(id, destination):
    def get_confirm_token(response):
        for key, value in response.cookies.items():
            if key.startswith('download_warning'):
                return value

        return None

    def save_response_content(response, destination):
        CHUNK_SIZE = 32768

        with open(destination, "wb") as f:
            for chunk in response.iter_content(CHUNK_SIZE):
                if chunk:  # filter out keep-alive new chunks
                    f.write(chunk)

    URL = "https://docs.google.com/uc?export=download"

    session = requests.Session()

    response = session.get(URL, params={'id': id}, stream=True)
    token = get_confirm_token(response)

    if token:
        params = {'id': id, 'confirm': token}
        response = session.get(URL, params=params, stream=True)

    save_response_content(response, destination)


def convert_bytes(num):
    """
    this function will convert bytes to MB.... GB... etc
    """
    for x in ['bytes', 'KB', 'MB', 'GB', 'TB']:
        if num < 1024.0:
            return "%3.1f %s" % (num, x)
        num /= 1024.0


def convert_human_time(seconds, digits):
    if seconds < 60:
        out = " {}sec".format(round(seconds, digits))
    else:
        if seconds < 360:
            m, s = divmod(seconds, 60)
            out = " {}min {}sec".format(int(m), round(s, digits))
        else:
            m, s = divmod(seconds, 60)
            h, m = divmod(m, 60)
            out = " {}h {}min {}sec".format(int(h), int(m), round(s, digits))

    return out


def file_size(file_path):
    """
    this function will return the file size
    """
    if os.path.isfile(file_path):
        file_info = os.stat(file_path)
        return convert_bytes(file_info.st_size)


def main(url, filename, target_dir):
    prefix1 = "https://drive.google.com/file/d/"
    prefix2 = "https://drive.google.com/open?id="
    postfix = "/view?usp=sharing"
    id = url.replace(prefix1, '').replace(prefix2, '').replace(postfix, '')
    save_filename = os.path.join(target_dir, filename)
    t = time.time()
    download_file_from_google_drive(id, save_filename)
    elapsed = time.time() - t
    print("It took {} to download {} {} ".format(convert_human_time(elapsed, 2), file_size(save_filename), filename))


def download_list(url, filename, target_dir):
    str_prefix1 = "https://drive.google.com/file/d/"
    str_prefix2 = "https://drive.google.com/open?id="
    str_postfix = "/view?usp=sharing"
    str_space = " "
    str_enter = "\n"
    id = url.replace(str_prefix1, '').replace(str_prefix2, '').replace(str_postfix, '').replace(str_space, '').replace(
        str_enter, '')
    save_filename = os.path.join(target_dir, filename)
    t = time.time()
    download_file_from_google_drive(id, save_filename)
    elapsed = time.time() - t
    print("It took {} to download {} {} ".format(convert_human_time(elapsed, 2), file_size(save_filename), filename))


if __name__ == "__main__":
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument('-u', '--shared_url', required=True, help='Google Drive Shared Link')
    parser.add_argument('-f', '--filename', type=str, default='download.zip')
    parser.add_argument('-d', '--target_dir', type=str, default='./')
    args = parser.parse_args()

    main(args.shared_url, args.filename, args.target_dir)