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""" The CfgPublicKeyCreator invokes
:class:`Bcfg2.Server.Plugins.Cfg.CfgPrivateKeyCreator.CfgPrivateKeyCreator`
to create SSH keys on the fly. """
import lxml.etree
from Bcfg2.Server.Plugin import StructFile, PluginExecutionError
from Bcfg2.Server.Plugins.Cfg import CfgCreator, CfgCreationError, CFG
class CfgPublicKeyCreator(CfgCreator, StructFile):
""" .. currentmodule:: Bcfg2.Server.Plugins.Cfg
The CfgPublicKeyCreator creates SSH public keys on the fly. It is
invoked by :class:`CfgPrivateKeyCreator.CfgPrivateKeyCreator` to
handle the creation of the public key, and can also call
:class:`CfgPrivateKeyCreator.CfgPrivateKeyCreator` to trigger the
creation of a keypair when a public key is created. """
#: Different configurations for different clients/groups can be
#: handled with Client and Group tags within privkey.xml
__specific__ = False
#: Handle XML specifications of private keys
__basenames__ = ['pubkey.xml']
def __init__(self, fname):
CfgCreator.__init__(self, fname)
StructFile.__init__(self, fname)
self.cfg = CFG
__init__.__doc__ = CfgCreator.__init__.__doc__
def create_data(self, entry, metadata):
if entry.get("name").endswith(".pub"):
privkey = entry.get("name")[:-4]
else:
raise CfgCreationError("Cfg: Could not determine private key for "
"%s: Filename does not end in .pub" %
entry.get("name"))
if privkey not in self.cfg.entries:
raise CfgCreationError("Cfg: Could not find Cfg entry for %s "
"(private key for %s)" % (privkey,
self.name))
eset = self.cfg.entries[privkey]
try:
creator = eset.best_matching(metadata,
eset.get_handlers(metadata,
CfgCreator))
except PluginExecutionError:
raise CfgCreationError("Cfg: No privkey.xml defined for %s "
"(private key for %s)" % (privkey,
self.name))
privkey_entry = lxml.etree.Element("Path", name=privkey)
pubkey = creator.create_data(privkey_entry, metadata,
return_pair=True)[0]
return pubkey
create_data.__doc__ = CfgCreator.create_data.__doc__
def handle_event(self, event):
CfgCreator.handle_event(self, event)
StructFile.HandleEvent(self, event)
handle_event.__doc__ = CfgCreator.handle_event.__doc__
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