# -*- 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