[jira] [Created] (LIBCLOUD-992) Godaddy DNS driver: add lazy iteration to list_zones method

["Yaroslav Surzhikov (JIRA)" <ji...@apache.org>]

Yaroslav Surzhikov created LIBCLOUD-992:
-------------------------------------------

             Summary: Godaddy DNS driver: add lazy iteration to list_zones method
                 Key: LIBCLOUD-992
                 URL: https://issues.apache.org/jira/browse/LIBCLOUD-992
             Project: Libcloud
          Issue Type: Improvement
          Components: DNS
            Reporter: Yaroslav Surzhikov


Because [/v1/domains|https://developer.godaddy.com/doc/endpoint/domains#/v1/list] has a limit key, which is the default of 100 ( Unfortunately, this is not documented and was found empirically) - the corresponding method ( GoDaddyDNSDriver.list_zones ) will return maximum of 100 records.

So, my suggestion is:

Instead of this: 
{code}
    def list_zones(self):
        """
        Return a list of zones (purchased domains)

        :return: ``list`` of :class:`Zone`
        """
        result = self.connection.request(
            '/v1/domains/').object
        zones = self._to_zones(result)
        return zones
{code}
Use something like this:
{code}
def list_zones_helper(self, marker=''):
    """
    Lazy recursive generator  of zones (purchased domains)

    :param marker: Domain to use as the offset in results
    :return: ``generator`` of result items
    """
    result = self.connection.request(
        '/v1/domains/?marker={0}'.format(marker)
    ).object
    if result:
        yield from result
        yield from self.list_zones_helper(result[-1]['domain'])


def list_zones(self):
    """
    Return a list of zones (purchased domains)

    :return: ``list`` of :class:`Zone`
    """
    return self._to_zones(self.list_zones_helper())
{code}
In addition, there is a possible vulnerability in the "_to_zones" method - it can raise KeyError if domain was expired or cancelled and has no "expires" key in dictionary.

P.S. Sorry for any mistakes. English is not my native language



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