[downloader/external] add can_download mathod for checking downloader availibilty and support

2016-03-13 14:53:17 +01:00
parent 91ee320bfa
commit 2cb99ebbd0
2 changed files with 6 additions and 2 deletions
--- a/youtube_dl/downloader/external.py
+++ b/youtube_dl/downloader/external.py
@@ -59,6 +59,10 @@ class ExternalFD(FileDownloader):
    def supports(cls, info_dict):
        return info_dict['protocol'] in ('http', 'https', 'ftp', 'ftps')

+    @classmethod
+    def can_download(cls, info_dict):
+        return cls.available() and cls.supports(info_dict)
+
    def _option(self, command_option, param):
        return cli_option(self.params, command_option, param)