def get_downloader(url, repo, conduit, config, is_cancelled_call):
"""
Returns an instance of the correct downloader to use for the given url.
:param url: location from which to sync packages
:type url: str
:param repo: describes the repository being synchronized
:type repo: pulp.plugins.model.Repository
:param conduit: sync conduit used during the sync process
:type conduit: pulp.plugins.conduits.repo_sync.RepoSyncConduit
:param config: configuration of the importer and call
:type config: pulp.plugins.config.PluginCallConfiguration
:param is_cancelled_call: callback into the plugin to check if the sync
has been cancelled
:type is_cancelled_call: func
:return: downloader instance to use for the given url
:raise UnsupportedURLType: if there is no applicable downloader for the
given url
:raise InvalidURL: if the url cannot be parsed to determine the type
"""
url_type = url_utils.determine_url_type(url)
downloader = get_url_type_downloader(url_type)
return downloader(repo, conduit, config, is_cancelled_call)
def is_valid_url(url):
if not url or url is None:
return False
url_type = url_utils.determine_url_type(url)
try:
get_url_type_downloader(url_type)
return True
except UnsupportedURLType:
return False
