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# -*- coding: utf-8 -*- |
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# |
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# This file is part of Glances. |
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# |
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# SPDX-FileCopyrightText: 2022 Nicolas Hennion <[email protected]> |
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# |
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# SPDX-License-Identifier: LGPL-3.0-only |
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# |
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"""System plugin.""" |
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import os |
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import platform |
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import re |
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from io import open |
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from glances.globals import iteritems |
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from glances.plugins.plugin.model import GlancesPluginModel |
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# SNMP OID |
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snmp_oid = { |
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'default': {'hostname': '1.3.6.1.2.1.1.5.0', 'system_name': '1.3.6.1.2.1.1.1.0'}, |
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'netapp': { |
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'hostname': '1.3.6.1.2.1.1.5.0', |
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'system_name': '1.3.6.1.2.1.1.1.0', |
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'platform': '1.3.6.1.4.1.789.1.1.5.0', |
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}, |
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} |
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# SNMP to human read |
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# Dict (key: OS short name) of dict (reg exp OID to human) |
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# Windows: |
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# http://msdn.microsoft.com/en-us/library/windows/desktop/ms724832%28v=vs.85%29.aspx |
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snmp_to_human = { |
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'windows': { |
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'Windows Version 10.0': 'Windows 10 or Server 2016', |
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'Windows Version 6.3': 'Windows 8.1 or Server 2012R2', |
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'Windows Version 6.2': 'Windows 8 or Server 2012', |
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'Windows Version 6.1': 'Windows 7 or Server 2008R2', |
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'Windows Version 6.0': 'Windows Vista or Server 2008', |
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'Windows Version 5.2': 'Windows XP 64bits or 2003 server', |
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'Windows Version 5.1': 'Windows XP', |
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'Windows Version 5.0': 'Windows 2000', |
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} |
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} |
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def _linux_os_release(): |
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"""Try to determine the name of a Linux distribution. |
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This function checks for the /etc/os-release file. |
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It takes the name from the 'NAME' field and the version from 'VERSION_ID'. |
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An empty string is returned if the above values cannot be determined. |
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""" |
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pretty_name = '' |
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ashtray = {} |
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keys = ['NAME', 'VERSION_ID'] |
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try: |
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with open(os.path.join('/etc', 'os-release')) as f: |
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for line in f: |
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for key in keys: |
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if line.startswith(key): |
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ashtray[key] = re.sub(r'^"|"$', '', line.strip().split('=')[1]) |
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except (OSError, IOError): |
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return pretty_name |
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if ashtray: |
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if 'NAME' in ashtray: |
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pretty_name = ashtray['NAME'] |
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if 'VERSION_ID' in ashtray: |
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pretty_name += ' {}'.format(ashtray['VERSION_ID']) |
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return pretty_name |
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class PluginModel(GlancesPluginModel): |
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"""Glances' host/system plugin. |
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stats is a dict |
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""" |
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def __init__(self, args=None, config=None): |
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"""Init the plugin.""" |
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super(PluginModel, self).__init__(args=args, config=config) |
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# We want to display the stat in the curse interface |
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self.display_curse = True |
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# Set default rate to 60 seconds |
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if self.get_refresh(): |
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self.set_refresh(60) |
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@GlancesPluginModel._check_decorator |
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@GlancesPluginModel._log_result_decorator |
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def update(self): |
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"""Update the host/system info using the input method. |
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:return: the stats dict |
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""" |
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# Init new stats |
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stats = self.get_init_value() |
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if self.input_method == 'local': |
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# Update stats using the standard system lib |
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stats['os_name'] = platform.system() |
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stats['hostname'] = platform.node() |
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stats['platform'] = platform.architecture()[0] |
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if stats['os_name'] == "Linux": |
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try: |
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linux_distro = platform.linux_distribution() |
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except AttributeError: |
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stats['linux_distro'] = _linux_os_release() |
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else: |
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if linux_distro[0] == '': |
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stats['linux_distro'] = _linux_os_release() |
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else: |
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stats['linux_distro'] = ' '.join(linux_distro[:2]) |
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stats['os_version'] = platform.release() |
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elif stats['os_name'].endswith('BSD') or stats['os_name'] == 'SunOS': |
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stats['os_version'] = platform.release() |
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elif stats['os_name'] == "Darwin": |
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stats['os_version'] = platform.mac_ver()[0] |
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elif stats['os_name'] == "Windows": |
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os_version = platform.win32_ver() |
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stats['os_version'] = ' '.join(os_version[::2]) |
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# if the python version is 32 bit perhaps the windows operating |
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# system is 64bit |
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if stats['platform'] == '32bit' and 'PROCESSOR_ARCHITEW6432' in os.environ: |
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stats['platform'] = '64bit' |
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else: |
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stats['os_version'] = "" |
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# Add human readable name |
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if stats['os_name'] == "Linux": |
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stats['hr_name'] = stats['linux_distro'] |
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else: |
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stats['hr_name'] = '{} {}'.format(stats['os_name'], stats['os_version']) |
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stats['hr_name'] += ' {}'.format(stats['platform']) |
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elif self.input_method == 'snmp': |
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# Update stats using SNMP |
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try: |
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stats = self.get_stats_snmp(snmp_oid=snmp_oid[self.short_system_name]) |
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except KeyError: |
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stats = self.get_stats_snmp(snmp_oid=snmp_oid['default']) |
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# Default behavior: display all the information |
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stats['os_name'] = stats['system_name'] |
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# Windows OS tips |
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if self.short_system_name == 'windows': |
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for r, v in iteritems(snmp_to_human['windows']): |
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if re.search(r, stats['system_name']): |
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stats['os_name'] = v |
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break |
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# Add human readable name |
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stats['hr_name'] = stats['os_name'] |
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# Update the stats |
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self.stats = stats |
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return self.stats |
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def msg_curse(self, args=None, max_width=None): |
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"""Return the string to display in the curse interface.""" |
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# Init the return message |
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ret = [] |
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# Only process if stats exist and plugin not disabled |
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if not self.stats or self.is_disabled(): |
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return ret |
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# Build the string message |
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if args.client: |
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# Client mode |
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if args.cs_status.lower() == "connected": |
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msg = 'Connected to ' |
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ret.append(self.curse_add_line(msg, 'OK')) |
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elif args.cs_status.lower() == "snmp": |
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msg = 'SNMP from ' |
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ret.append(self.curse_add_line(msg, 'OK')) |
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elif args.cs_status.lower() == "disconnected": |
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msg = 'Disconnected from ' |
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ret.append(self.curse_add_line(msg, 'CRITICAL')) |
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# Hostname is mandatory |
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msg = self.stats['hostname'] |
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ret.append(self.curse_add_line(msg, "TITLE")) |
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# System info |
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if self.stats['os_name'] == "Linux" and self.stats['linux_distro']: |
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msg = ' ({} {} / {} {})'.format( |
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self.stats['linux_distro'], self.stats['platform'], self.stats['os_name'], self.stats['os_version'] |
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) |
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else: |
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try: |
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msg = ' ({} {} {})'.format(self.stats['os_name'], self.stats['os_version'], self.stats['platform']) |
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except Exception: |
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msg = ' ({})'.format(self.stats['os_name']) |
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ret.append(self.curse_add_line(msg, optional=True)) |
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# Return the message with decoration |
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return ret |
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nicolargo /
glances
