# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""Manage the Glances server static list."""
from socket import gaierror, gethostbyname
from glances.compat import range
from glances.logger import logger
class GlancesStaticServer(object):
"""Manage the static servers list for the client browser."""
_section = "serverlist"
def __init__(self, config=None, args=None):
# server_list is a list of dict (JSON compliant)
# [ {'key': 'zeroconf name', ip': '172.1.2.3', 'port': 61209, 'cpu': 3, 'mem': 34 ...} ... ]
# Load the configuration file
self._server_list = self.load(config)
def load(self, config):
"""Load the server list from the configuration file."""
server_list = []
if config is None:
logger.debug("No configuration file available. Cannot load server list.")
elif not config.has_section(self._section):
logger.warning("No [%s] section in the configuration file. Cannot load server list." % self._section)
else:
logger.info("Start reading the [%s] section in the configuration file" % self._section)
for i in range(1, 256):
new_server = {}
postfix = 'server_%s_' % str(i)
# Read the server name (mandatory)
for s in ['name', 'port', 'alias']:
new_server[s] = config.get_value(self._section, '%s%s' % (postfix, s))
if new_server['name'] is not None:
# Manage optional information
if new_server['port'] is None:
new_server['port'] = '61209'
new_server['username'] = 'glances'
# By default, try empty (aka no) password
new_server['password'] = ''
try:
new_server['ip'] = gethostbyname(new_server['name'])
except gaierror as e:
logger.error("Cannot get IP address for server %s (%s)" % (new_server['name'], e))
continue
new_server['key'] = new_server['name'] + ':' + new_server['port']
# Default status is 'UNKNOWN'
new_server['status'] = 'UNKNOWN'
# Server type is 'STATIC'
new_server['type'] = 'STATIC'
# Add the server to the list
logger.debug("Add server %s to the static list" % new_server['name'])
server_list.append(new_server)
# Server list loaded
logger.info("%s server(s) loaded from the configuration file" % len(server_list))
logger.debug("Static server list: %s" % server_list)
return server_list
def get_servers_list(self):
"""Return the current server list (list of dict)."""
return self._server_list
def set_server(self, server_pos, key, value):
"""Set the key to the value for the server_pos (position in the list)."""
self._server_list[server_pos][key] = value
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