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fritzbox-munin/fritzbox_memory_usage.py

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#!/usr/bin/env python
"""
fritzbox_memory_usage - A munin plugin for Linux to monitor AVM Fritzbox
Copyright (C) 2015 Christian Stade-Schuldt
Author: Christian Stade-Schuldt
Like Munin, this plugin is licensed under the GNU GPL v2 license
http://www.opensource.org/licenses/GPL-2.0
Add the following section to your munin-node's plugin configuration:
[fritzbox_*]
env.fritzbox_ip [ip address of the fritzbox]
env.fritzbox_password [fritzbox password]
This plugin supports the following munin configuration parameters:
#%# family=auto contrib
#%# capabilities=autoconf
"""
import os
import re
import sys
import fritzbox_helper as fh
PAGE = '/system/ecostat.lua'
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pattern = re.compile(".*/(StatRAM.*?)\".*=.*\"(.*?)\"")
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USAGE_MAPPING = {'StatRAMCacheUsed': 'cache', 'StatRAMPhysFree': 'free', 'StatRAMStrictlyUsed': 'strict'}
def get_memory_usage():
"""get the current memory usage"""
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server = os.environ['fritzbox_ip']
password = os.environ['fritzbox_password']
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sid = fh.get_sid(server, password)
data = fh.get_page(server, sid, PAGE)
matches = re.finditer(pattern, data)
if matches:
for m in matches:
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print'%s.value %d' % (USAGE_MAPPING[m.group(1)], int(m.group(2).split(',')[0]))
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def print_config():
print "graph_title AVM Fritz!Box Memory"
print "graph_vlabel %"
print "graph_args --base 1000 -r --lower-limit 0 --upper-limit 100"
print "graph_category system"
print "graph_order strict cache free"
print "graph_info This graph shows what the Fritzbox uses memory for."
print "graph_scale no"
print "strict.label strict"
print "strict.type GAUGE"
print "strict.draw AREA"
print "cache.label cache"
print "cache.type GAUGE"
print "cache.draw STACK"
print "free.label free"
print "free.type GAUGE"
print "free.draw STACK"
if __name__ == '__main__':
if len(sys.argv) == 2 and sys.argv[1] == 'config':
print_config()
elif len(sys.argv) == 2 and sys.argv[1] == 'autoconf':
print 'yes'
elif len(sys.argv) == 1 or len(sys.argv) == 2 and sys.argv[1] == 'fetch':
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# Some docs say it'll be called with fetch, some say no arg at all
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try:
get_memory_usage()
except:
sys.exit("Couldn't retrieve fritzbox memory usage")