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# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import grp
import pwd
from os_apply_config import config_exception as exc
class OacFile:
DEFAULTS = {
'allow_empty': True,
'mode': None,
'owner': None,
'group': None,
}
def __init__(self, body, **kwargs):
super().__init__()
self.body = body
for k, v in self.DEFAULTS.items():
setattr(self, '_' + k, v)
for k, v in kwargs.items():
if not hasattr(self, k):
raise exc.ConfigException(
"unrecognised file control key '%s'" % (k))
setattr(self, k, v)
def __eq__(self, other):
if type(other) is type(self):
return self.__dict__ == other.__dict__
return False
def __ne__(self, other):
return not self.__eq__(other)
def __repr__(self):
a = ["OacFile(%s" % repr(self.body)]
for key, default in self.DEFAULTS.items():
value = getattr(self, key)
if value != default:
a.append("{}={}".format(key, repr(value)))
return ", ".join(a) + ")"
def set(self, key, value):
"""Allows setting attrs as an expression rather than a statement."""
setattr(self, key, value)
return self
@property
def allow_empty(self):
"""Returns allow_empty.
If True and body='', no file will be created and any existing
file will be deleted.
"""
return self._allow_empty
@allow_empty.setter
def allow_empty(self, value):
if type(value) is not bool:
raise exc.ConfigException(
"allow_empty requires Boolean, got: '%s'" % value)
self._allow_empty = value
return self
@property
def mode(self):
"""The permissions to set on the file, EG 0755."""
return self._mode
@mode.setter
def mode(self, v):
"""Pass in the mode to set on the file.
EG 0644. Must be between 0 and 0777, the sticky bit is not supported.
"""
if type(v) is not int:
raise exc.ConfigException("mode '%s' is not numeric" % v)
if not 0 <= v <= 0o777:
raise exc.ConfigException("mode '%#o' out of range" % v)
self._mode = v
@property
def owner(self):
"""The UID to set on the file, EG 'rabbitmq' or '501'."""
return self._owner
@owner.setter
def owner(self, v):
"""Pass in the UID to set on the file.
EG 'rabbitmq' or 501.
"""
try:
if type(v) is int:
user = pwd.getpwuid(v)
elif type(v) is str:
user = pwd.getpwnam(v)
else:
raise exc.ConfigException(
"owner '%s' must be a string or int" % v)
except KeyError:
raise exc.ConfigException(
"owner '%s' not found in passwd database" % v)
self._owner = user[2]
@property
def group(self):
"""The GID to set on the file, EG 'rabbitmq' or '501'."""
return self._group
@group.setter
def group(self, v):
"""Pass in the GID to set on the file.
EG 'rabbitmq' or 501.
"""
try:
if type(v) is int:
group = grp.getgrgid(v)
elif type(v) is str:
group = grp.getgrnam(v)
else:
raise exc.ConfigException(
"group '%s' must be a string or int" % v)
except KeyError:
raise exc.ConfigException(
"group '%s' not found in group database" % v)
self._group = group[2]
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