nicolargo/glances
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Add a new IP information plugin (issue #509)

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This commit is contained in:
nicolargo 2015-02-15 22:17:55 +01:00
parent d34cde590e
commit a5b6eb9dab
3 changed files with 146 additions and 8 deletions
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2
glances/core/glances_main.py
View File

@ -102,6 +102,8 @@ Start the client browser (browser mode):\n\
# Enable or disable option on startup
parser.add_argument('--disable-network', action='store_true', default=False,
dest='disable_network', help=_('disable network module'))
parser.add_argument('--disable-ip', action='store_true', default=False,
dest='disable_ip', help=_('disable IP module'))
parser.add_argument('--disable-diskio', action='store_true', default=False,
dest='disable_diskio', help=_('disable disk I/O module'))
parser.add_argument('--disable-fs', action='store_true', default=False,

32
glances/outputs/glances_curses.py
View File

@ -296,6 +296,9 @@ class _GlancesCurses(object):
# 'i' > Sort processes by IO rate (not available on OS X)
self.args.process_sorted_by = 'io_counters'
glances_processes.setmanualsortkey(self.args.process_sorted_by)
elif self.pressedkey == ord('I'):
# 'I' > Show/hide IP module
self.args.disable_ip = not self.args.disable_ip
elif self.pressedkey == ord('l'):
# 'l' > Show/hide log messages
self.args.disable_log = not self.args.disable_log
@ -430,6 +433,10 @@ class _GlancesCurses(object):
stats_memswap = stats.get_plugin('memswap').get_stats_display()
stats_network = stats.get_plugin('network').get_stats_display(
args=self.args, max_width=plugin_max_width)
try:
stats_ip = stats.get_plugin('ip').get_stats_display(args=self.args)
except AttributeError:
stats_ip = None
stats_diskio = stats.get_plugin(
'diskio').get_stats_display(args=self.args)
stats_fs = stats.get_plugin('fs').get_stats_display(
@ -479,10 +486,17 @@ class _GlancesCurses(object):
# ==================================
# Display first line (system+uptime)
# ==================================
# Space between column
self.space_between_column = 0
self.new_line()
l = self.get_stats_display_width(
stats_system) + self.get_stats_display_width(stats_uptime) + self.space_between_column
self.display_plugin(stats_system, display_optional=(screen_x >= l))
l_uptime = self.get_stats_display_width(
stats_system) + self.space_between_column + self.get_stats_display_width(stats_ip) + 3 + self.get_stats_display_width(stats_uptime)
self.display_plugin(
stats_system, display_optional=(screen_x >= l_uptime))
self.new_column()
self.display_plugin(stats_ip)
# Space between column
self.space_between_column = 3
self.new_column()
self.display_plugin(stats_uptime)
@ -499,11 +513,13 @@ class _GlancesCurses(object):
cpu_width = self.get_stats_display_width(stats_percpu)
quicklook_adapt = 114
else:
cpu_width = self.get_stats_display_width(stats_cpu, without_option=(screen_x < 80))
cpu_width = self.get_stats_display_width(
stats_cpu, without_option=(screen_x < 80))
quicklook_adapt = 108
l = cpu_width
# MEM & SWAP & LOAD
l += self.get_stats_display_width(stats_mem, without_option=(screen_x < 100))
l += self.get_stats_display_width(stats_mem,
without_option=(screen_x < 100))
l += self.get_stats_display_width(stats_memswap)
l += self.get_stats_display_width(stats_load)
# Quicklook plugin size is dynamic
@ -545,9 +561,9 @@ class _GlancesCurses(object):
# Backup line position
self.saved_line = self.next_line
# =============================================================
# ==================================================================
# Display left sidebar (NETWORK+DISKIO+FS+SENSORS+Current time)
# =============================================================
# ==================================================================
self.init_column()
if (not (self.args.disable_network and self.args.disable_diskio
and self.args.disable_fs and self.args.disable_raid
@ -718,7 +734,7 @@ class _GlancesCurses(object):
# Exit if:
# - the plugin_stats message is empty
# - the display tag = False
if not plugin_stats['msgdict'] or not plugin_stats['display']:
if plugin_stats is None or not plugin_stats['msgdict'] or not plugin_stats['display']:
# Exit
return 0

120
glances/plugins/glances_ip.py Normal file
View File

@ -0,0 +1,120 @@
# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""IP plugin."""
# Import system libs
try:
import netifaces
netifaces_tag = True
except ImportError:
netifaces_tag = False
# Import Glances libs
from glances.core.glances_logging import logger
from glances.plugins.glances_plugin import GlancesPlugin
class Plugin(GlancesPlugin):
"""Glances' IP Plugin.
stats is a dict
"""
def __init__(self, args=None):
"""Init the plugin."""
GlancesPlugin.__init__(self, args=args)
# We want to display the stat in the curse interface
self.display_curse = True
# Init the stats
self.reset()
def reset(self):
"""Reset/init the stats."""
self.stats = {}
@GlancesPlugin._log_result_decorator
def update(self):
"""Update IP stats using the input method.
Stats is dict
"""
# Reset stats
self.reset()
if self.get_input() == 'local' and netifaces_tag:
# Update stats using the netifaces lib
try:
default_gw = netifaces.gateways()['default'][netifaces.AF_INET]
except KeyError:
logger.debug("Can not grab the default gateway")
else:
try:
self.stats['address'] = netifaces.ifaddresses(default_gw[1])[netifaces.AF_INET][0]['addr']
self.stats['mask'] = netifaces.ifaddresses(default_gw[1])[netifaces.AF_INET][0]['netmask']
self.stats['mask_cidr'] = self.ip_to_cidr(self.stats['mask'])
self.stats['gateway'] = netifaces.gateways()['default'][netifaces.AF_INET][0]
except KeyError as e:
logger.debug("Can not grab IP information (%s)".format(e))
elif self.get_input() == 'snmp':
# Not implemented yet
pass
# Update the view
self.update_views()
return self.stats
def update_views(self):
"""Update stats views"""
# Call the father's method
GlancesPlugin.update_views(self)
# Add specifics informations
# Optional
for key in self.stats.keys():
self.views[key]['optional'] = True
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# Only process if stats exist and display plugin enable...
if not self.stats or args.disable_ip:
return ret
# Build the string message
msg = _(' - IP')
ret.append(self.curse_add_line(msg, 'TITLE'))
msg = ' {0:}/{1}'.format(self.stats['address'], self.stats['mask_cidr'])
ret.append(self.curse_add_line(msg))
return ret
@staticmethod
def ip_to_cidr(ip):
# Convert IP address to CIDR
# Exemple: '255.255.255.0' will return 24
return sum(map(lambda x: int(x) << 8, ip.split('.'))) / 8128