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# Copyright 2023-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
import os
from typing import TYPE_CHECKING
from vyos.defaults import directories
# https://peps.python.org/pep-0484/#forward-references
if TYPE_CHECKING:
from vyos.configtree import ConfigTree
config_file = os.path.join(directories['config'], 'config.boot')
def read_saved_value(path: list):
if not isinstance(path, list) or not path:
return ''
from vyos.configtree import ConfigTree
try:
with open(config_file) as f:
config_string = f.read()
ct = ConfigTree(config_string)
except Exception:
return ''
if not ct.exists(path):
return ''
res = ct.return_values(path)
if len(res) == 1:
return res[0]
res = ct.list_nodes(path)
if len(res) == 1:
return ' '.join(res)
return res
def flag(l: list) -> list:
res = [l[0:i] for i,_ in enumerate(l, start=1)]
return res
def tag_node_of_path(p: list) -> list:
from vyos.xml_ref import is_tag
fl = flag(p)
res = list(map(is_tag, fl))
return res
def set_tags(ct: 'ConfigTree', path: list) -> None:
fl = flag(path)
if_tag = tag_node_of_path(path)
for condition, target in zip(if_tag, fl):
if condition:
ct.set_tag(target)
def parse_commands(cmds: str) -> dict:
from re import split as re_split
from shlex import split as shlex_split
from vyos.xml_ref import definition
from vyos.xml_ref.pkg_cache.vyos_1x_cache import reference
ref_tree = definition.Xml()
ref_tree.define(reference)
res = []
cmds = re_split(r'\n+', cmds)
for c in cmds:
cmd_parts = shlex_split(c)
if not cmd_parts:
# Ignore empty lines
continue
path = cmd_parts[1:]
op = cmd_parts[0]
try:
path, value = ref_tree.split_path(path)
except ValueError as e:
raise ValueError(f'Incorrect command: {e}')
entry = {}
entry["op"] = op
entry["path"] = path
entry["value"] = value
entry["is_multi"] = ref_tree.is_multi(path)
entry["is_leaf"] = ref_tree.is_leaf(path)
entry["is_tag"] = ref_tree.is_tag(path)
res.append(entry)
return res
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