def Clear(self):
"""Wipes the transaction log."""
try:
winreg.DeleteValue(_GetServiceKey(), "Transaction")
self._synced = False
except OSError:
pass
def _StopPreviousService():
"""Stops the Windows service hosting the GRR process."""
_StopService(
service_name=config.CONFIG["Nanny.service_name"],
service_binary_name=config.CONFIG["Nanny.service_binary_name"])
if not config.CONFIG["Client.fleetspeak_enabled"]:
return
_StopService(service_name=config.CONFIG["Client.fleetspeak_service_name"])
# Delete GRR's Fleetspeak config from the registry so Fleetspeak
# doesn't try to restart GRR unless/until installation completes
# successfully.
key_path = config.CONFIG["Client.fleetspeak_unsigned_services_regkey"]
regkey = _OpenRegkey(key_path)
try:
winreg.DeleteValue(regkey, config.CONFIG["Client.name"])
logging.info("Deleted value '%s' of key '%s'.",
config.CONFIG["Client.name"], key_path)
except OSError as e:
# Windows will raise a no-such-file-or-directory error if
# GRR's config hasn't been written to the registry yet.
if e.errno != errno.ENOENT:
raise
def _DeleteLegacyConfigOptions(registry_key_uri):
"""Deletes config values in the registry for legacy GRR installations."""
key_spec = regconfig.ParseRegistryURI(registry_key_uri)
try:
regkey = winreg.OpenKeyEx(key_spec.winreg_hive, key_spec.path, 0,
winreg.KEY_ALL_ACCESS)
except OSError as e:
if e.errno == errno.ENOENT:
logging.info(
"Skipping legacy config purge for non-existent key: %s.",
registry_key_uri)
return
else:
raise
for option in _LEGACY_OPTIONS:
try:
winreg.DeleteValue(regkey, option)
logging.info("Deleted value '%s' of key %s.", option, key_spec)
except OSError as e:
# Windows will raise a no-such-file-or-directory error if the config
# option does not exist in the registry. This is expected when upgrading
# to a newer Fleetspeak-enabled version.
if e.errno != errno.ENOENT:
raise
def ClearNannyMessage(self):
"""Wipes the nanny message."""
try:
winreg.DeleteValue(_GetServiceKey(), "Nanny.message")
except OSError:
pass
