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# Copyright 2021 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 json
from ariadne import convert_camel_case_to_snake
import vyos.defaults
from vyos.config import Config
from vyos.configtree import ConfigTree
from vyos.template import render
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__)
def configure(self):
session = self._session
data = self._data
func_base_name = self._name
tmpl_file = f'{func_base_name}.tmpl'
cmd_file = f'/tmp/{func_base_name}.cmds'
tmpl_dir = vyos.defaults.directories['api_templates']
try:
render(cmd_file, tmpl_file, data, location=tmpl_dir)
commands = []
with open(cmd_file) as f:
lines = f.readlines()
for line in lines:
commands.append(line.split())
for cmd in commands:
if cmd[0] == 'set':
session.set(cmd[1:])
elif cmd[0] == 'delete':
session.delete(cmd[1:])
else:
raise ValueError('Operation must be "set" or "delete"')
session.commit()
except Exception as error:
raise error
def delete_path_if_childless(self, path):
session = self._session
config = Config(session.get_session_env())
if not config.list_nodes(path):
session.delete(path)
session.commit()
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 = vyos.configtree.ConfigTree(out)
out = json.loads(config_tree.to_json())
except Exception as error:
raise error
return out
def save(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(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(self):
session = self._session
data = self._data
try:
res = session.install_image(data['location'])
except Exception as error:
raise error
return res
def delete(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.recipes.queries.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
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