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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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# Copyright (C) 2015 Nicolargo <[email protected]> |
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# |
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# Glances is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Glances is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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"""IP plugin.""" |
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from glances.compat import iterkeys |
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from glances.globals import BSD |
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from glances.logger import logger |
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from glances.plugins.glances_plugin import GlancesPlugin |
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# XXX *BSDs: Segmentation fault (core dumped) |
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# -- https://bitbucket.org/al45tair/netifaces/issues/15 |
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if not BSD: |
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try: |
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import netifaces |
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netifaces_tag = True |
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except ImportError: |
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netifaces_tag = False |
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else: |
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netifaces_tag = False |
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class Plugin(GlancesPlugin): |
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"""Glances IP Plugin. |
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stats is a dict |
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""" |
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def __init__(self, args=None): |
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"""Init the plugin.""" |
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super(Plugin, self).__init__(args=args) |
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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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# Init the stats |
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self.reset() |
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def reset(self): |
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"""Reset/init the stats.""" |
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self.stats = {} |
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@GlancesPlugin._log_result_decorator |
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def update(self): |
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"""Update IP stats using the input method. |
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Stats is dict |
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""" |
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# Reset stats |
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self.reset() |
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if self.input_method == 'local' and netifaces_tag: |
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# Update stats using the netifaces lib |
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try: |
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default_gw = netifaces.gateways()['default'][netifaces.AF_INET] |
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except (KeyError, AttributeError) as e: |
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logger.debug("Cannot grab the default gateway ({0})".format(e)) |
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else: |
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try: |
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self.stats['address'] = netifaces.ifaddresses(default_gw[1])[netifaces.AF_INET][0]['addr'] |
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self.stats['mask'] = netifaces.ifaddresses(default_gw[1])[netifaces.AF_INET][0]['netmask'] |
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self.stats['mask_cidr'] = self.ip_to_cidr(self.stats['mask']) |
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self.stats['gateway'] = netifaces.gateways()['default'][netifaces.AF_INET][0] |
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except (KeyError, AttributeError) as e: |
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logger.debug("Cannot grab IP information: {0}".format(e)) |
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elif self.input_method == 'snmp': |
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# Not implemented yet |
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pass |
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# Update the view |
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self.update_views() |
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return self.stats |
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def update_views(self): |
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"""Update stats views.""" |
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# Call the father's method |
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super(Plugin, self).update_views() |
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# Add specifics informations |
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# Optional |
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for key in iterkeys(self.stats): |
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self.views[key]['optional'] = True |
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def msg_curse(self, args=None): |
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"""Return the dict 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 display plugin enable... |
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if not self.stats or args.disable_ip: |
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return ret |
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# Build the string message |
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msg = ' - ' |
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ret.append(self.curse_add_line(msg)) |
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msg = 'IP ' |
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ret.append(self.curse_add_line(msg, 'TITLE')) |
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msg = '{0:}/{1}'.format(self.stats['address'], self.stats['mask_cidr']) |
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ret.append(self.curse_add_line(msg)) |
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return ret |
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@staticmethod |
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def ip_to_cidr(ip): |
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"""Convert IP address to CIDR. |
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Example: '255.255.255.0' will return 24 |
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""" |
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return sum([int(x) << 8 for x in ip.split('.')]) // 8128 |
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