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"""
The ExtraGroups plugin allows for assigning <Client>s to <Group>s in the
Metadata/groups.xml file.
Written by Holger Weiss <holger@ZEDAT.FU-Berlin.DE>.
"""
import os
import lxml.etree
import Bcfg2.Server.Plugin
class ExtraGroups(Bcfg2.Server.Plugin.Plugin, Bcfg2.Server.Plugin.Connector):
name = 'ExtraGroups'
version = '1'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
Bcfg2.Server.Plugin.Connector.__init__(self)
self.groups_xml = os.path.dirname(self.data) + '/Metadata/groups.xml'
def get_additional_groups(self, metadata):
try:
xdata = lxml.etree.parse(self.groups_xml)
except lxml.etree.XMLSyntaxError:
self.logger.error('Failed to parse %s' % self.groups_xml)
return
includes = [ent.get('href') for ent in
xdata.findall('./{http://www.w3.org/2001/XInclude}include')]
if includes:
try:
xdata.xinclude()
except lxml.etree.XIncludeError:
self.logger.error('Failed to process XInclude for file %s' %
self.groups_xml)
extra_groups = []
for group in xdata.xpath('//Groups/Group'):
if metadata.hostname in [item.get('name')
for item in group.findall('./Client')]:
extra_groups.append(group.get('name'))
extra_groups.extend([item.get('name')
for item in group.findall('./Group')])
return extra_groups
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