mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-25 08:21:05 -06:00
2d7e0de5ea
I have only tested the all, rpms and *clean targets directly. install may work but the rpm moves a lot of things around for us. The Apache configuration file isn't in its final state but it works with the new mod_python configuration.
268 lines
9.0 KiB
Python
268 lines
9.0 KiB
Python
# Authors:
|
|
# Jason Gerard DeRose <jderose@redhat.com>
|
|
# Rob Crittenden <rcritten@redhat.com>
|
|
#
|
|
# Copyright (C) 2008 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
|
|
|
|
"""
|
|
RPC client and shared RPC client/server functionality.
|
|
|
|
This module adds some additional functionality on top of the ``xmlrpclib``
|
|
module in the Python standard library. For documentation on the
|
|
``xmlrpclib`` module, see:
|
|
|
|
http://docs.python.org/library/xmlrpclib.html
|
|
|
|
Also see the `ipaserver.rpcserver` module.
|
|
"""
|
|
|
|
from types import NoneType
|
|
import threading
|
|
import socket
|
|
from xmlrpclib import Binary, Fault, dumps, loads, ServerProxy, SafeTransport
|
|
import kerberos
|
|
from ipalib.backend import Connectible
|
|
from ipalib.errors2 import public_errors, PublicError, UnknownError, NetworkError
|
|
from ipalib import errors2
|
|
from ipalib.request import context
|
|
|
|
|
|
def xml_wrap(value):
|
|
"""
|
|
Wrap all ``str`` in ``xmlrpclib.Binary``.
|
|
|
|
Because ``xmlrpclib.dumps()`` will itself convert all ``unicode`` instances
|
|
into UTF-8 encoded ``str`` instances, we don't do it here.
|
|
|
|
So in total, when encoding data for an XML-RPC packet, the following
|
|
transformations occur:
|
|
|
|
* All ``str`` instances are treated as binary data and are wrapped in
|
|
an ``xmlrpclib.Binary()`` instance.
|
|
|
|
* Only ``unicode`` instances are treated as character data. They get
|
|
converted to UTF-8 encoded ``str`` instances (although as mentioned,
|
|
not by this function).
|
|
|
|
Also see `xml_unwrap()`.
|
|
|
|
:param value: The simple scalar or simple compound value to wrap.
|
|
"""
|
|
if type(value) in (list, tuple):
|
|
return tuple(xml_wrap(v) for v in value)
|
|
if type(value) is dict:
|
|
return dict(
|
|
(k, xml_wrap(v)) for (k, v) in value.iteritems()
|
|
)
|
|
if type(value) is str:
|
|
return Binary(value)
|
|
assert type(value) in (unicode, int, float, bool, NoneType)
|
|
return value
|
|
|
|
|
|
def xml_unwrap(value, encoding='UTF-8'):
|
|
"""
|
|
Unwrap all ``xmlrpc.Binary``, decode all ``str`` into ``unicode``.
|
|
|
|
When decoding data from an XML-RPC packet, the following transformations
|
|
occur:
|
|
|
|
* The binary payloads of all ``xmlrpclib.Binary`` instances are
|
|
returned as ``str`` instances.
|
|
|
|
* All ``str`` instances are treated as UTF-8 encoded Unicode strings.
|
|
They are decoded and the resulting ``unicode`` instance is returned.
|
|
|
|
Also see `xml_wrap()`.
|
|
|
|
:param value: The value to unwrap.
|
|
:param encoding: The Unicode encoding to use (defaults to ``'UTF-8'``).
|
|
"""
|
|
if type(value) in (list, tuple):
|
|
return tuple(xml_unwrap(v, encoding) for v in value)
|
|
if type(value) is dict:
|
|
return dict(
|
|
(k, xml_unwrap(v, encoding)) for (k, v) in value.iteritems()
|
|
)
|
|
if type(value) is str:
|
|
return value.decode(encoding)
|
|
if isinstance(value, Binary):
|
|
assert type(value.data) is str
|
|
return value.data
|
|
assert type(value) in (unicode, int, float, bool, NoneType)
|
|
return value
|
|
|
|
|
|
def xml_dumps(params, methodname=None, methodresponse=False, encoding='UTF-8'):
|
|
"""
|
|
Encode an XML-RPC data packet, transparently wraping ``params``.
|
|
|
|
This function will wrap ``params`` using `xml_wrap()` and will
|
|
then encode the XML-RPC data packet using ``xmlrpclib.dumps()`` (from the
|
|
Python standard library).
|
|
|
|
For documentation on the ``xmlrpclib.dumps()`` function, see:
|
|
|
|
http://docs.python.org/library/xmlrpclib.html#convenience-functions
|
|
|
|
Also see `xml_loads()`.
|
|
|
|
:param params: A ``tuple`` or an ``xmlrpclib.Fault`` instance.
|
|
:param methodname: The name of the method to call if this is a request.
|
|
:param methodresponse: Set this to ``True`` if this is a response.
|
|
:param encoding: The Unicode encoding to use (defaults to ``'UTF-8'``).
|
|
"""
|
|
if type(params) is tuple:
|
|
params = xml_wrap(params)
|
|
else:
|
|
assert isinstance(params, Fault)
|
|
return dumps(params,
|
|
methodname=methodname,
|
|
methodresponse=methodresponse,
|
|
encoding=encoding,
|
|
allow_none=True,
|
|
)
|
|
|
|
|
|
def decode_fault(e, encoding='UTF-8'):
|
|
assert isinstance(e, Fault)
|
|
if type(e.faultString) is str:
|
|
return Fault(e.faultCode, e.faultString.decode(encoding))
|
|
return e
|
|
|
|
|
|
def xml_loads(data, encoding='UTF-8'):
|
|
"""
|
|
Decode the XML-RPC packet in ``data``, transparently unwrapping its params.
|
|
|
|
This function will decode the XML-RPC packet in ``data`` using
|
|
``xmlrpclib.loads()`` (from the Python standard library). If ``data``
|
|
contains a fault, ``xmlrpclib.loads()`` will itself raise an
|
|
``xmlrpclib.Fault`` exception.
|
|
|
|
Assuming an exception is not raised, this function will then unwrap the
|
|
params in ``data`` using `xml_unwrap()`. Finally, a
|
|
``(params, methodname)`` tuple is returned containing the unwrapped params
|
|
and the name of the method being called. If the packet contains no method
|
|
name, ``methodname`` will be ``None``.
|
|
|
|
For documentation on the ``xmlrpclib.loads()`` function, see:
|
|
|
|
http://docs.python.org/library/xmlrpclib.html#convenience-functions
|
|
|
|
Also see `xml_dumps()`.
|
|
|
|
:param data: The XML-RPC packet to decode.
|
|
"""
|
|
try:
|
|
(params, method) = loads(data)
|
|
return (xml_unwrap(params), method)
|
|
except Fault, e:
|
|
raise decode_fault(e)
|
|
|
|
|
|
class KerbTransport(SafeTransport):
|
|
"""
|
|
Handles Kerberos Negotiation authentication to an XML-RPC server.
|
|
"""
|
|
|
|
def get_host_info(self, host):
|
|
(host, extra_headers, x509) = SafeTransport.get_host_info(self, host)
|
|
|
|
# Set the remote host principal
|
|
service = "HTTP@" + host.split(':')[0]
|
|
|
|
try:
|
|
(rc, vc) = kerberos.authGSSClientInit(service,
|
|
kerberos.GSS_C_DELEG_FLAG |
|
|
kerberos.GSS_C_MUTUAL_FLAG |
|
|
kerberos.GSS_C_SEQUENCE_FLAG)
|
|
except kerberos.GSSError, e:
|
|
raise e # FIXME: raise a PublicError
|
|
|
|
try:
|
|
kerberos.authGSSClientStep(vc, "")
|
|
except kerberos.GSSError, e:
|
|
(major, minor) = e.args
|
|
if minor[1] == -1765328377:
|
|
raise errors2.ServiceError(service=service)
|
|
else:
|
|
raise e
|
|
|
|
extra_headers = [
|
|
('Authorization', 'negotiate %s' % kerberos.authGSSClientResponse(vc))
|
|
]
|
|
|
|
return (host, extra_headers, x509)
|
|
|
|
|
|
class xmlclient(Connectible):
|
|
"""
|
|
Forwarding backend plugin for XML-RPC client.
|
|
|
|
Also see the `ipaserver.rpcserver.xmlserver` plugin.
|
|
"""
|
|
|
|
def __init__(self):
|
|
super(xmlclient, self).__init__()
|
|
self.__errors = dict((e.errno, e) for e in public_errors)
|
|
|
|
def create_connection(self, ccache=None):
|
|
kw = dict(allow_none=True, encoding='UTF-8')
|
|
if self.env.xmlrpc_uri.startswith('https://'):
|
|
kw['transport'] = KerbTransport()
|
|
return ServerProxy(self.env.xmlrpc_uri, **kw)
|
|
|
|
def destroy_connection(self):
|
|
pass
|
|
|
|
def forward(self, name, *args, **kw):
|
|
"""
|
|
Forward call to command named ``name`` over XML-RPC.
|
|
|
|
This method will encode and forward an XML-RPC request, and will then
|
|
decode and return the corresponding XML-RPC response.
|
|
|
|
:param command: The name of the command being forwarded.
|
|
:param args: Positional arguments to pass to remote command.
|
|
:param kw: Keyword arguments to pass to remote command.
|
|
"""
|
|
if name not in self.Command:
|
|
raise ValueError(
|
|
'%s.forward(): %r not in api.Command' % (self.name, name)
|
|
)
|
|
self.info('Forwarding %r to server %r', name, self.env.xmlrpc_uri)
|
|
command = getattr(self.conn, name)
|
|
params = args + (kw,)
|
|
try:
|
|
response = command(*xml_wrap(params))
|
|
return xml_unwrap(response)
|
|
except Fault, e:
|
|
e = decode_fault(e)
|
|
self.debug('Caught fault %d from server %s: %s', e.faultCode,
|
|
self.env.xmlrpc_uri, e.faultString)
|
|
if e.faultCode in self.__errors:
|
|
error = self.__errors[e.faultCode]
|
|
raise error(message=e.faultString)
|
|
raise UnknownError(
|
|
code=e.faultCode,
|
|
error=e.faultString,
|
|
server=self.env.xmlrpc_uri,
|
|
)
|
|
except socket.error, e:
|
|
raise NetworkError(uri=self.env.xmlrpc_uri, error=e.args[1])
|