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""" GroupLogic is a connector plugin that lets you use an XML Genshi
template to dynamically set additional groups for clients. """
import os
import lxml.etree
import Bcfg2.Server.Plugin
try:
from Bcfg2.Server.Plugins.Bundler import BundleTemplateFile
except ImportError:
# BundleTemplateFile missing means that genshi is missing. we
# import genshi to get the _real_ error
import genshi # pylint: disable=W0611
class GroupLogicConfig(BundleTemplateFile):
""" Representation of the GroupLogic groups.xml file """
create = lxml.etree.Element("GroupLogic",
nsmap=dict(py="http://genshi.edgewall.org/"))
def __init__(self, name, fam):
BundleTemplateFile.__init__(self, name,
Bcfg2.Server.Plugin.Specificity(), None)
self.fam = fam
self.should_monitor = True
self.fam.AddMonitor(self.name, self)
def _match(self, item, metadata):
if item.tag == 'Group' and not len(item.getchildren()):
return [item]
return BundleTemplateFile._match(self, item, metadata)
class GroupLogic(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.Connector):
""" GroupLogic is a connector plugin that lets you use an XML
Genshi template to dynamically set additional groups for
clients. """
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
Bcfg2.Server.Plugin.Connector.__init__(self)
self.config = GroupLogicConfig(os.path.join(self.data, "groups.xml"),
core.fam)
def get_additional_groups(self, metadata):
return [el.get("name")
for el in self.config.get_xml_value(metadata).findall("Group")]
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