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authorChris St. Pierre <chris.a.st.pierre@gmail.com>2013-04-23 14:50:09 -0400
committerChris St. Pierre <chris.a.st.pierre@gmail.com>2013-04-23 14:50:09 -0400
commit46a47b4120b3d892b8149a5e181e4d976ad87f99 (patch)
treef2697f233fc7f5ad5022864222a5ca87715a651b /src/lib/Bcfg2/Server/Core.py
parente1f99d1d5045e0511db42debb30aa97da2018796 (diff)
parent3d06f311274d6b942ee89d8cdb13b2ecc99af1b0 (diff)
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Merge branch '1.4.x'
Conflicts: debian/bcfg2-server.install doc/server/plugins/grouping/metadata.txt src/lib/Bcfg2/Client/Client.py src/lib/Bcfg2/Client/Tools/Portage.py src/lib/Bcfg2/Client/Tools/RcUpdate.py src/lib/Bcfg2/Client/Tools/YUM24.py src/lib/Bcfg2/Client/Tools/__init__.py src/lib/Bcfg2/Client/Tools/launchd.py src/lib/Bcfg2/Options.py src/lib/Bcfg2/Server/Core.py src/lib/Bcfg2/Server/Plugin/helpers.py src/lib/Bcfg2/Server/Plugins/Metadata.py src/lib/Bcfg2/Server/models.py src/lib/Bcfg2/Utils.py src/sbin/bcfg2-info src/sbin/bcfg2-test testsuite/Testsrc/Testlib/TestClient/TestTools/Test_init.py testsuite/Testsrc/test_code_checks.py
Diffstat (limited to 'src/lib/Bcfg2/Server/Core.py')
-rw-r--r--src/lib/Bcfg2/Server/Core.py174
1 files changed, 115 insertions, 59 deletions
diff --git a/src/lib/Bcfg2/Server/Core.py b/src/lib/Bcfg2/Server/Core.py
index 3eb9ff83a..c69e8b055 100644
--- a/src/lib/Bcfg2/Server/Core.py
+++ b/src/lib/Bcfg2/Server/Core.py
@@ -11,16 +11,16 @@ import logging
import inspect
import threading
import lxml.etree
-import Bcfg2.settings
import Bcfg2.Server
import Bcfg2.Logger
+import Bcfg2.settings
+import Bcfg2.Server.Statistics
import Bcfg2.Server.FileMonitor
-from Bcfg2.Cache import Cache
-import Bcfg2.Statistics
from itertools import chain
+from Bcfg2.Server.Cache import Cache
+from Bcfg2.Options import get_option_parser, SERVER_FAM_IGNORE
from Bcfg2.Compat import xmlrpclib # pylint: disable=W0622
-from Bcfg2.Server.Plugin import PluginInitError, PluginExecutionError, \
- track_statistics
+from Bcfg2.Server.Plugin import PluginInitError, PluginExecutionError
try:
import psyco
@@ -86,21 +86,23 @@ class BaseCore(object):
and modules. All core implementations must inherit from
``BaseCore``. """
- def __init__(self, setup): # pylint: disable=R0912,R0915
+ def __init__(self): # pylint: disable=R0912,R0915
"""
- :param setup: A Bcfg2 options dict
- :type setup: Bcfg2.Options.OptionParser
-
.. automethod:: _daemonize
.. automethod:: _run
.. automethod:: _block
.. -----
.. automethod:: _file_monitor_thread
"""
+ #: The Bcfg2 options dict
+ self.setup = get_option_parser()
+
#: The Bcfg2 repository directory
- self.datastore = setup['repo']
+ self.datastore = self.setup['repo']
- if setup['verbose']:
+ if self.setup['debug']:
+ level = logging.DEBUG
+ elif self.setup['verbose']:
level = logging.INFO
else:
level = logging.WARNING
@@ -111,8 +113,8 @@ class BaseCore(object):
# setup_logging and the console will get DEBUG output.
Bcfg2.Logger.setup_logging('bcfg2-server',
to_console=logging.INFO,
- to_syslog=setup['syslog'],
- to_file=setup['logging'],
+ to_syslog=self.setup['syslog'],
+ to_file=self.setup['logging'],
level=level)
#: A :class:`logging.Logger` object for use by the core
@@ -134,34 +136,37 @@ class BaseCore(object):
# enable debugging on the core now. debugging is enabled on
# everything else later
- if setup['debug']:
+ if self.setup['debug']:
self.set_core_debug(None, setup['debug'])
+ if 'ignore' not in self.setup:
+ self.setup.add_option('ignore', SERVER_FAM_IGNORE)
+ self.setup.reparse()
+
+ famargs = dict(filemonitor=self.setup['filemonitor'],
+ debug=self.setup['debug'],
+ ignore=self.setup['ignore'])
try:
filemonitor = \
Bcfg2.Server.FileMonitor.available[setup['filemonitor']]
except KeyError:
self.logger.error("File monitor driver %s not available; "
- "forcing to default" % setup['filemonitor'])
- filemonitor = Bcfg2.Server.FileMonitor.available['default']
- famargs = dict(ignore=[], debug=False)
- if 'ignore' in setup:
- famargs['ignore'] = setup['ignore']
- if 'debug' in setup:
- famargs['debug'] = setup['debug']
+ "forcing to default" % self.setup['filemonitor'])
+ famargs['filemonitor'] = 'default'
try:
#: The :class:`Bcfg2.Server.FileMonitor.FileMonitor`
#: object used by the core to monitor for Bcfg2 data
#: changes.
- self.fam = filemonitor(**famargs)
+ self.fam = Bcfg2.Server.FileMonitor.load_fam(**famargs)
except IOError:
- msg = "Failed to instantiate fam driver %s" % setup['filemonitor']
+ msg = "Failed to instantiate fam driver %s" % \
+ self.setup['filemonitor']
self.logger.error(msg, exc_info=1)
raise CoreInitError(msg)
#: Path to bcfg2.conf
- self.cfile = setup['configfile']
+ self.cfile = self.setup['configfile']
#: Dict of plugins that are enabled. Keys are the plugin
#: names (just the plugin name, in the correct case; e.g.,
@@ -179,9 +184,6 @@ class BaseCore(object):
#: :class:`Bcfg2.Server.Plugin.interfaces.Version` plugin.
self.revision = '-1'
- #: The Bcfg2 options dict
- self.setup = setup
-
atexit.register(self.shutdown)
#: Threading event to signal worker threads (e.g.,
@@ -235,10 +237,10 @@ class BaseCore(object):
self.logger.error("Failed to set ownership of database "
"at %s: %s" % (db_settings['NAME'], err))
- if '' in setup['plugins']:
- setup['plugins'].remove('')
+ if '' in self.setup['plugins']:
+ self.setup['plugins'].remove('')
- for plugin in setup['plugins']:
+ for plugin in self.setup['plugins']:
if not plugin in self.plugins:
self.init_plugin(plugin)
# Remove blacklisted plugins
@@ -301,7 +303,7 @@ class BaseCore(object):
self.connectors = self.plugins_by_type(Bcfg2.Server.Plugin.Connector)
#: The CA that signed the server cert
- self.ca = setup['ca']
+ self.ca = self.setup['ca']
def hdlr(sig, frame): # pylint: disable=W0613
""" Handle SIGINT/Ctrl-C by shutting down the core and exiting
@@ -314,14 +316,14 @@ class BaseCore(object):
#: The FAM :class:`threading.Thread`,
#: :func:`_file_monitor_thread`
self.fam_thread = \
- threading.Thread(name="%sFAMThread" % setup['filemonitor'],
+ threading.Thread(name="%sFAMThread" % self.setup['filemonitor'],
target=self._file_monitor_thread)
#: A :func:`threading.Lock` for use by
#: :func:`Bcfg2.Server.FileMonitor.FileMonitor.handle_event_set`
self.lock = threading.Lock()
- #: A :class:`Bcfg2.Cache.Cache` object for caching client
+ #: A :class:`Bcfg2.Server.Cache.Cache` object for caching client
#: metadata
self.metadata_cache = Cache()
@@ -368,7 +370,7 @@ class BaseCore(object):
continue
self._update_vcs_revision()
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def _update_vcs_revision(self):
""" Update the revision of the current configuration on-disk
from the VCS plugin """
@@ -438,8 +440,10 @@ class BaseCore(object):
""" Get the client :attr:`metadata_cache` mode. Options are
off, initial, cautious, aggressive, on (synonym for
cautious). See :ref:`server-caching` for more details. """
+ # pylint: disable=E1103
mode = self.setup.cfp.get("caching", "client_metadata",
default="off").lower()
+ # pylint: enable=E1103
if mode == "on":
return "cautious"
else:
@@ -477,11 +481,11 @@ class BaseCore(object):
self.logger.error("%s: Error invoking hook %s: %s" %
(plugin, hook, err))
finally:
- Bcfg2.Statistics.stats.add_value("%s:client_run_hook:%s" %
+ Bcfg2.Server.Statistics.stats.add_value("%s:client_run_hook:%s" %
(self.__class__.__name__, hook),
time.time() - start)
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def validate_structures(self, metadata, data):
""" Checks the data structures by calling the
:func:`Bcfg2.Server.Plugin.interfaces.StructureValidator.validate_structures`
@@ -509,7 +513,7 @@ class BaseCore(object):
self.logger.error("Plugin %s: unexpected structure validation "
"failure" % plugin.name, exc_info=1)
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def validate_goals(self, metadata, data):
""" Checks that the config matches the goals enforced by
:class:`Bcfg2.Server.Plugin.interfaces.GoalValidator` plugins
@@ -535,7 +539,7 @@ class BaseCore(object):
self.logger.error("Plugin %s: unexpected goal validation "
"failure" % plugin.name, exc_info=1)
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def GetStructures(self, metadata):
""" Get all structures (i.e., bundles) for the given client
@@ -553,7 +557,7 @@ class BaseCore(object):
(metadata.hostname, ':'.join(missing)))
return structures
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def BindStructures(self, structures, metadata, config):
""" Given a list of structures (i.e. bundles), bind all the
entries in them and add the structures to the config.
@@ -574,7 +578,7 @@ class BaseCore(object):
except:
self.logger.error("error in BindStructure", exc_info=1)
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
def BindStructure(self, structure, metadata):
""" Bind all elements in a single structure (i.e., bundle).
@@ -648,7 +652,7 @@ class BaseCore(object):
raise PluginExecutionError("No matching generator: %s:%s" %
(entry.tag, entry.get('name')))
finally:
- Bcfg2.Statistics.stats.add_value("%s:Bind:%s" %
+ Bcfg2.Server.Statistics.stats.add_value("%s:Bind:%s" %
(self.__class__.__name__,
entry.tag),
time.time() - start)
@@ -805,7 +809,49 @@ class BaseCore(object):
% plugin.name, exc_info=1)
return result
- @track_statistics()
+ @Bcfg2.Server.Statistics.track_statistics()
+ def check_acls(self, address, rmi):
+ """ Check client IP address and metadata object against all
+ :class:`Bcfg2.Server.Plugin.interfaces.ClientACLs` plugins.
+ If any ACL plugin denies access, then access is denied. ACLs
+ are checked in two phases: First, with the client IP address;
+ and second, with the client metadata object. This lets an ACL
+ interface do a quick rejection based on IP before metadata is
+ ever built.
+
+ :param address: The address pair of the client to check ACLs for
+ :type address: tuple of (<ip address>, <port>)
+ :param rmi: The fully-qualified name of the RPC call
+ :param rmi: string
+ :returns: bool
+ """
+ plugins = self.plugins_by_type(Bcfg2.Server.Plugin.ClientACLs)
+ try:
+ ip_checks = [p.check_acl_ip(address, rmi) for p in plugins]
+ except:
+ self.logger.error("Unexpected error checking ACLs for %s for %s: "
+ "%s" % (address[0], rmi, sys.exc_info()[1]))
+ return False # failsafe
+
+ if all(ip_checks):
+ # if all ACL plugins return True (allow), then allow
+ return True
+ elif False in ip_checks:
+ # if any ACL plugin returned False (deny), then deny
+ return False
+ # else, no plugins returned False, but not all plugins
+ # returned True, so some plugin returned None (defer), so
+ # defer.
+
+ client, metadata = self.resolve_client(address)
+ try:
+ return all(p.check_acl_metadata(metadata, rmi) for p in plugins)
+ except:
+ self.logger.error("Unexpected error checking ACLs for %s for %s: "
+ "%s" % (client, rmi, sys.exc_info()[1]))
+ return False # failsafe
+
+ @Bcfg2.Server.Statistics.track_statistics()
def build_metadata(self, client_name):
""" Build initial client metadata for a client
@@ -868,7 +914,7 @@ class BaseCore(object):
:param address: The address pair of the client to get the
canonical hostname for.
- :type address: tuple of (<ip address>, <hostname>)
+ :type address: tuple of (<ip address>, <port>)
:param cleanup_cache: Tell the
:class:`Bcfg2.Server.Plugin.interfaces.Metadata`
plugin in :attr:`metadata` to clean up
@@ -947,21 +993,23 @@ class BaseCore(object):
def listMethods(self, address): # pylint: disable=W0613
""" List all exposed methods, including plugin RMI.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: list of exposed method names
"""
methods = [name
for name, func in inspect.getmembers(self, callable)
- if getattr(func, "exposed", False)]
- methods.extend(self._get_rmi().keys())
+ if (getattr(func, "exposed", False) and
+ self.check_acls(address, name))]
+ methods.extend([m for m in self._get_rmi().keys()
+ if self.check_acls(address, m)])
return methods
@exposed
def methodHelp(self, address, method_name): # pylint: disable=W0613
""" Get help from the docstring of an exposed method
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:param method_name: The name of the method to get help on
:type method_name: string
@@ -978,7 +1026,7 @@ class BaseCore(object):
def DeclareVersion(self, address, version):
""" Declare the client version.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:param version: The client's declared version
:type version: string
@@ -1001,7 +1049,7 @@ class BaseCore(object):
def GetProbes(self, address):
""" Fetch probes for the client.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: lxml.etree._Element - XML tree describing probes for
this client
@@ -1025,7 +1073,7 @@ class BaseCore(object):
def RecvProbeData(self, address, probedata):
""" Receive probe data from clients.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: bool - True on success
:raises: :exc:`xmlrpclib.Fault`
@@ -1072,7 +1120,7 @@ class BaseCore(object):
def AssertProfile(self, address, profile):
""" Set profile for a client.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: bool - True on success
:raises: :exc:`xmlrpclib.Fault`
@@ -1093,7 +1141,7 @@ class BaseCore(object):
""" Build config for a client by calling
:func:`BuildConfiguration`.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: lxml.etree._Element - The full configuration
document for the client
@@ -1111,7 +1159,7 @@ class BaseCore(object):
def RecvStats(self, address, stats):
""" Act on statistics upload with :func:`process_statistics`.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: bool - True on success
:raises: :exc:`xmlrpclib.Fault`
@@ -1132,7 +1180,7 @@ class BaseCore(object):
:type user: string
:param password: The password supplied by the client
:type password: string
- :param address: An address pair of ``(<ip address>, <hostname>)``
+ :param address: An address pair of ``(<ip address>, <port>)``
:type address: tuple
:return: bool - True if the authenticate succeeds, False otherwise
"""
@@ -1144,11 +1192,19 @@ class BaseCore(object):
return self.metadata.AuthenticateConnection(acert, user, password,
address)
+ def check_acls(self, client_ip):
+ """ Check if client IP is in list of accepted IPs """
+ try:
+ return self.plugins['Acl'].config.check_acl(client_ip)
+ except KeyError:
+ # No ACL means accept all incoming ips
+ return True
+
@exposed
def GetDecisionList(self, address, mode):
""" Get the decision list for the client with :func:`GetDecisions`.
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: list of decision tuples
:raises: :exc:`xmlrpclib.Fault`
@@ -1165,17 +1221,17 @@ class BaseCore(object):
@exposed
def get_statistics(self, _):
""" Get current statistics about component execution from
- :attr:`Bcfg2.Statistics.stats`.
+ :attr:`Bcfg2.Server.Statistics.stats`.
:returns: dict - The statistics data as returned by
- :func:`Bcfg2.Statistics.Statistics.display` """
- return Bcfg2.Statistics.stats.display()
+ :func:`Bcfg2.Server.Statistics.Statistics.display` """
+ return Bcfg2.Server.Statistics.stats.display()
@exposed
def toggle_debug(self, address):
""" Toggle debug status of the FAM and all plugins
- :param address: Client (address, hostname) pair
+ :param address: Client (address, port) pair
:type address: tuple
:returns: bool - The new debug state of the FAM
"""