Synnefo

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import astakosclient

from django.conf import settings

from optparse import make_option, OptionValueError

from snf_django.management.utils import parse_bool

class WrappedOptions(object):

    """Wrapper class to provide access to options as object attributes"""

    def __init__(self, options_dict):

        self.__dict__.update(options_dict)

def make_boolean_option(*args, **kwargs):

    """Helper function to create a boolean option."""

    def parse_boolean_option(option, option_str, value, parser):

        if value is not None:

            try:

                value = parse_bool(value)

            except ValueError:

                choices = "True, False"

                raise OptionValueError(

                    "option %s: invalid choice: %r (choose from %s)"

                    % (option, value, choices))

        setattr(parser.values, option.dest, value)

    return make_option(*args,

                       metavar="True|False",

                       type=str,

                       action="callback",

                       callback=parse_boolean_option,

                       **kwargs)

def parse_user_option(option, option_str, value, parser):

    """Callback to parser -u/--user option

    Translate uuid <-> email and add 'user_id' and 'user_email' to command

    options.

    """

    astakos = astakosclient.AstakosClient(settings.CYCLADES_SERVICE_TOKEN,

                                          settings.ASTAKOS_AUTH_URL,

                                          retry=2)

    try:

        if "@" in value:

            email = value

            uuid = astakos.service_get_uuid(email)

        else:

            uuid = value

            email = astakos.service_get_username(uuid)

    except astakosclient.errors.NoUUID:

        raise OptionValueError("User with email %r does not exist" % email)

    except astakosclient.errors.NoUserName:

        raise OptionValueError("User with uuid %r does not exist" % uuid)

    except astakosclient.errors.AstakosClientException as e:

        raise OptionValueError("Failed to get user info:\n%r" % e)

    setattr(parser.values, 'user_id', uuid)

    setattr(parser.values, 'user_email', email)

USER_OPT = make_option("-u", "--user",

                       default=None, type=str,

                       action="callback", callback=parse_user_option,

                       help="Specify the UUID or email of the user")