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# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2009 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 only
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
from ipalib import api, errors
import httplib
import xml.dom.minidom
def get_ca_certchain(ca_host=None):
"""
Retrieve the CA Certificate chain from the configured Dogtag server.
"""
if ca_host is None:
ca_host = api.env.ca_host
chain = None
conn = httplib.HTTPConnection(ca_host, 9180)
conn.request("GET", "/ca/ee/ca/getCertChain")
res = conn.getresponse()
if res.status == 200:
data = res.read()
conn.close()
try:
doc = xml.dom.minidom.parseString(data)
try:
item_node = doc.getElementsByTagName("ChainBase64")
chain = item_node[0].childNodes[0].data
except IndexError:
try:
item_node = doc.getElementsByTagName("Error")
reason = item_node[0].childNodes[0].data
raise errors.RemoteRetrieveError(reason=reason)
except Exception, e:
raise errors.RemoteRetrieveError(reason="Retrieving CA cert chain failed: %s" % str(e))
finally:
doc.unlink()
return chain
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