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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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.
#
import collections
import xml.dom.minidom
import six
# pylint: disable=import-error
from six.moves.urllib.parse import urlencode
# pylint: enable=import-error
# pylint: disable=ipa-forbidden-import
from ipalib import api, errors
from ipalib.util import create_https_connection
from ipalib.errors import NetworkError
from ipalib.text import _
# pylint: enable=ipa-forbidden-import
from ipapython import ipautil
from ipapython.ipa_log_manager import root_logger
# Python 3 rename. The package is available in "six.moves.http_client", but
# pylint cannot handle classes from that alias
try:
import httplib
except ImportError:
# pylint: disable=import-error
import http.client as httplib
if six.PY3:
unicode = str
Profile = collections.namedtuple('Profile', ['profile_id', 'description', 'store_issued'])
INCLUDED_PROFILES = {
Profile(u'caIPAserviceCert', u'Standard profile for network services', True),
Profile(u'IECUserRoles', u'User profile that includes IECUserRoles extension from request', True),
Profile(u'KDCs_PKINIT_Certs',
u'Profile for PKINIT support by KDCs',
False),
}
DEFAULT_PROFILE = u'caIPAserviceCert'
KDC_PROFILE = u'KDCs_PKINIT_Certs'
def error_from_xml(doc, message_template):
try:
item_node = doc.getElementsByTagName("Error")
reason = item_node[0].childNodes[0].data
return errors.RemoteRetrieveError(reason=reason)
except Exception as e:
return errors.RemoteRetrieveError(reason=message_template % e)
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,
api.env.ca_install_port or 8080)
conn.request("GET", "/ca/ee/ca/getCertChain")
res = conn.getresponse()
doc = None
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:
raise error_from_xml(
doc, _("Retrieving CA cert chain failed: %s"))
finally:
if doc:
doc.unlink()
else:
raise errors.RemoteRetrieveError(
reason=_("request failed with HTTP status %d") % res.status)
return chain
def _parse_ca_status(body):
doc = xml.dom.minidom.parseString(body)
try:
item_node = doc.getElementsByTagName("XMLResponse")[0]
item_node = item_node.getElementsByTagName("Status")[0]
return item_node.childNodes[0].data
except IndexError:
raise error_from_xml(doc, _("Retrieving CA status failed: %s"))
def ca_status(ca_host=None):
"""Return the status of the CA, and the httpd proxy in front of it
The returned status can be:
- running
- starting
- Service Temporarily Unavailable
"""
if ca_host is None:
ca_host = api.env.ca_host
status, _headers, body = http_request(
ca_host, 8080, '/ca/admin/ca/getStatus')
if status == 503:
# Service temporarily unavailable
return status
elif status != 200:
raise errors.RemoteRetrieveError(
reason=_("Retrieving CA status failed with status %d") % status)
return _parse_ca_status(body)
def https_request(
host, port, url, cafile, client_certfile, client_keyfile,
method='POST', headers=None, body=None, **kw):
"""
:param method: HTTP request method (defalut: 'POST')
:param url: The path (not complete URL!) to post to.
:param body: The request body (encodes kw if None)
:param kw: Keyword arguments to encode into POST body.
:return: (http_status, http_headers, http_body)
as (integer, dict, str)
Perform a client authenticated HTTPS request
"""
def connection_factory(host, port):
return create_https_connection(
host, port,
cafile=cafile,
client_certfile=client_certfile,
client_keyfile=client_keyfile,
tls_version_min=api.env.tls_version_min,
tls_version_max=api.env.tls_version_max)
if body is None:
body = urlencode(kw)
return _httplib_request(
'https', host, port, url, connection_factory, body,
method=method, headers=headers)
def http_request(host, port, url, **kw):
"""
:param url: The path (not complete URL!) to post to.
:param kw: Keyword arguments to encode into POST body.
:return: (http_status, http_headers, http_body)
as (integer, dict, str)
Perform an HTTP request.
"""
body = urlencode(kw)
return _httplib_request(
'http', host, port, url, httplib.HTTPConnection, body)
def _httplib_request(
protocol, host, port, path, connection_factory, request_body,
method='POST', headers=None):
"""
:param request_body: Request body
:param connection_factory: Connection class to use. Will be called
with the host and port arguments.
:param method: HTTP request method (default: 'POST')
Perform a HTTP(s) request.
"""
uri = u'%s://%s%s' % (protocol, ipautil.format_netloc(host, port), path)
root_logger.debug('request %s %s', method, uri)
root_logger.debug('request body %r', request_body)
headers = headers or {}
if (
method == 'POST'
and 'content-type' not in (str(k).lower() for k in headers)
):
headers['content-type'] = 'application/x-www-form-urlencoded'
try:
conn = connection_factory(host, port)
conn.request(method, uri, body=request_body, headers=headers)
res = conn.getresponse()
http_status = res.status
http_headers = res.msg
http_body = res.read()
conn.close()
except Exception as e:
root_logger.debug("httplib request failed:", exc_info=True)
raise NetworkError(uri=uri, error=str(e))
root_logger.debug('response status %d', http_status)
root_logger.debug('response headers %s', http_headers)
root_logger.debug('response body %r', http_body)
return http_status, http_headers, http_body
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