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# Copyright 2021-2022 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
import json
from ariadne import convert_camel_case_to_snake
from vyos.config import Config
from vyos.configtree import ConfigTree
from vyos.defaults import directories
from vyos.template import render
from vyos.opmode import Error as OpModeError
from api.graphql.utils.util import load_op_mode_as_module, split_compound_op_mode_name
op_mode_include_file = os.path.join(directories['data'], 'op-mode-standardized.json')
class Session:
"""
Wrapper for calling configsession functions based on GraphQL requests.
Non-nullable fields in the respective schema allow avoiding a key check
in 'data'.
"""
def __init__(self, session, data):
self._session = session
self._data = data
self._name = convert_camel_case_to_snake(type(self).__name__)
try:
with open(op_mode_include_file) as f:
self._op_mode_list = json.loads(f.read())
except Exception:
self._op_mode_list = None
def show_config(self):
session = self._session
data = self._data
out = ''
try:
out = session.show_config(data['path'])
if data.get('config_format', '') == 'json':
config_tree = ConfigTree(out)
out = json.loads(config_tree.to_json())
except Exception as error:
raise error
return out
def save_config_file(self):
session = self._session
data = self._data
if 'file_name' not in data or not data['file_name']:
data['file_name'] = '/config/config.boot'
try:
session.save_config(data['file_name'])
except Exception as error:
raise error
def load_config_file(self):
session = self._session
data = self._data
try:
session.load_config(data['file_name'])
session.commit()
except Exception as error:
raise error
def show(self):
session = self._session
data = self._data
out = ''
try:
out = session.show(data['path'])
except Exception as error:
raise error
return out
def add_system_image(self):
session = self._session
data = self._data
try:
res = session.install_image(data['location'])
except Exception as error:
raise error
return res
def delete_system_image(self):
session = self._session
data = self._data
try:
res = session.remove_image(data['name'])
except Exception as error:
raise error
return res
def system_status(self):
import api.graphql.session.composite.system_status as system_status
session = self._session
data = self._data
status = {}
status['host_name'] = session.show(['host', 'name']).strip()
status['version'] = system_status.get_system_version()
status['uptime'] = system_status.get_system_uptime()
status['ram'] = system_status.get_system_ram_usage()
return status
def gen_op_query(self):
session = self._session
data = self._data
name = self._name
op_mode_list = self._op_mode_list
# handle the case that the op-mode file contains underscores:
if op_mode_list is None:
raise FileNotFoundError(f"No op-mode file list at '{op_mode_include_file}'")
(func_name, scriptname) = split_compound_op_mode_name(name, op_mode_list)
if scriptname == '':
raise FileNotFoundError(f"No op-mode file named in string '{name}'")
mod = load_op_mode_as_module(f'{scriptname}')
func = getattr(mod, func_name)
try:
res = func(True, **data)
except OpModeError as e:
raise e
return res
def gen_op_mutation(self):
session = self._session
data = self._data
name = self._name
op_mode_list = self._op_mode_list
# handle the case that the op-mode file name contains underscores:
if op_mode_list is None:
raise FileNotFoundError(f"No op-mode file list at '{op_mode_include_file}'")
(func_name, scriptname) = split_compound_op_mode_name(name, op_mode_list)
if scriptname == '':
raise FileNotFoundError(f"No op-mode file named in string '{name}'")
mod = load_op_mode_as_module(f'{scriptname}')
func = getattr(mod, func_name)
try:
res = func(**data)
except OpModeError as e:
raise e
return res
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