1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
"""
NETCONF for APK Distributions server:
Configuration manager module
Copyright © 2020 Adélie Software in the Public Benefit, Inc.
Released under the terms of the NCSA license. See the LICENSE file included
with this source distribution for more information.
SPDX-License-Identifier: NCSA
"""
import logging
import yaml
from taillight import Signal
from ncserver.base.util import _
CONFIG_RELOADED = Signal(('ConfigManager', 'reloaded'))
"""Signal fired when configuration is reloaded."""
class ConfigManager:
"""The configuration manager for NETCONF for APK Distributions."""
def __init__(self):
"""Initialise the configuration manager."""
self._config = {'server': {'port': 830, 'debug': False, 'modules': [],
'users': ['netconf']}}
self._logger = logging.getLogger("ConfigManager")
self.reload_config()
def reload_config(self):
"""Reload the configuration from disk."""
try:
with open('/etc/netconf/netconf.conf', 'r') as conf:
self._config = yaml.safe_load(conf)
except IOError as exc:
self._logger.error(_("Couldn't open configuration file: %s"), exc)
except BaseException as exc: # pylint: disable=W0703
self._logger.error(_("Couldn't read configuration file: %s"), exc)
else:
CONFIG_RELOADED.call(self)
def get(self, clade: str, key: str):
"""Retrieve the value for the specified configuration key.
:param str clade:
The configuration clade (typically 'server').
:param str key:
The configuration key desired.
:returns str:
The value of the specified configuration key.
:raises KeyError:
The key is not configured or set.
"""
return self._config[clade][key]
def get_list(self, clade: str, key: str) -> list:
"""Retrieve a list value for the specified configuration key.
:param str clade:
The configuration clade (typically 'server').
:param str key:
The configuration key desired.
:returns list:
The value of the specified configuration key.
:raises KeyError:
The key is not configured or set.
:raises TypeError:
The value for this key is not a list.
"""
value = self._config[clade][key]
if not isinstance(value, list):
raise TypeError(_("{}/{} is not a list value").format(clade, key))
return value
|
