+ def decrypt_url(f_url):
+ for k in (key, 'IFYOUWANTTHEARTISTSTOGETPAIDDONOTDOWNLOADFROMMIXCLOUD'):
+ decrypted_url = self._decrypt_xor_cipher(k, f_url)
+ if re.search(r'^https?://[0-9A-Za-z.]+/[0-9A-Za-z/.?=&_-]+$', decrypted_url):
+ return decrypted_url
+