Failed with sub-folders

[haindvn]

It took me a while to debug to see the problem.
The following example code on the front page will fail if we have any sub-folder in the main folder, we can check the key furl to check whether it's a folder or a file prior to call download function on that link to avoid script fail (the exception "Link is dead" is not meaningful in this case).

I include the check in my script: https://github.com/haindvn/FShareDownloader
(fdownload.py line #137)

from get_fshare import FSAPI

URL = 'https://www.fshare.vn/folder/THFVWDY4YT'

bot = FSAPI(email="Your email", password="Your password")
bot.login()
sillicon_valley_ss1 = bot.get_folder_urls(URL)

for episode in sillicon_valley_ss1:
    # Should check whether it's a file or folder, sometime we have sub-folder.
    print(episode['name'], bot.download("https://www.fshare.vn/file/{}".format(episode['linkcode'])))

[tudoanh]

If you can fix it, please make a PR :D

[haindvn]

Noted, I will make some fixes and will PR :)