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# -*- 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 ports list (Ports plugin)."""
from glances.logger import logger
from glances.globals import BSD
# XXX *BSDs: Segmentation fault (core dumped)
# -- https://bitbucket.org/al45tair/netifaces/issues/15
# Also used in the glances_ip plugin
if not BSD:
try:
import netifaces
netifaces_tag = True
except ImportError:
netifaces_tag = False
else:
netifaces_tag = False
class GlancesPortsList(object):
"""Manage the ports list for the ports plugin."""
_section = "ports"
_default_refresh = 60
_default_timeout = 3
def __init__(self, config=None, args=None):
# ports_list is a list of dict (JSON compliant)
# [ {'host': 'www.google.fr', 'port': 443, 'refresh': 30, 'description': Internet, 'status': True} ... ]
# Load the configuration file
self._ports_list = self.load(config)
def load(self, config):
"""Load the ports list from the configuration file."""
ports_list = []
if config is None:
logger.debug("No configuration file available. Cannot load ports list.")
elif not config.has_section(self._section):
logger.debug("No [%s] section in the configuration file. Cannot load ports list." % self._section)
else:
logger.debug("Start reading the [%s] section in the configuration file" % self._section)
refresh = int(config.get_value(self._section, 'refresh', default=self._default_refresh))
timeout = int(config.get_value(self._section, 'timeout', default=self._default_timeout))
# Add default gateway on top of the ports_list lists
default_gateway = config.get_value(self._section, 'port_default_gateway', default='False')
if default_gateway.lower().startswith('true') and netifaces_tag:
new_port = {}
try:
new_port['host'] = netifaces.gateways()['default'][netifaces.AF_INET][0]
except KeyError:
new_port['host'] = None
# ICMP
new_port['port'] = 0
new_port['description'] = 'DefaultGateway'
new_port['refresh'] = refresh
new_port['timeout'] = timeout
new_port['status'] = None
new_port['rtt_warning'] = None
new_port['indice'] = str('port_0')
logger.debug("Add default gateway %s to the static list" % (new_port['host']))
ports_list.append(new_port)
# Read the scan list
for i in range(1, 256):
new_port = {}
postfix = 'port_%s_' % str(i)
# Read mandatory configuration key: host
new_port['host'] = config.get_value(self._section, '%s%s' % (postfix, 'host'))
if new_port['host'] is None:
continue
# Read optionals configuration keys
# Port is set to 0 by default. 0 mean ICMP check instead of TCP check
new_port['port'] = config.get_value(self._section, '%s%s' % (postfix, 'port'), 0)
new_port['description'] = config.get_value(
self._section, '%sdescription' % postfix, default="%s:%s" % (new_port['host'], new_port['port'])
)
# Default status
new_port['status'] = None
# Refresh rate in second
new_port['refresh'] = refresh
# Timeout in second
new_port['timeout'] = int(config.get_value(self._section, '%stimeout' % postfix, default=timeout))
# RTT warning
new_port['rtt_warning'] = config.get_value(self._section, '%srtt_warning' % postfix, default=None)
if new_port['rtt_warning'] is not None:
# Convert to second
new_port['rtt_warning'] = int(new_port['rtt_warning']) / 1000.0
# Indice
new_port['indice'] = 'port_' + str(i)
# Add the server to the list
logger.debug("Add port %s:%s to the static list" % (new_port['host'], new_port['port']))
ports_list.append(new_port)
# Ports list loaded
logger.debug("Ports list loaded: %s" % ports_list)
return ports_list
def get_ports_list(self):
"""Return the current server list (dict of dict)."""
return self._ports_list
def set_server(self, pos, key, value):
"""Set the key to the value for the pos (position in the list)."""
self._ports_list[pos][key] = value
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