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fritzbox-munin/fritzbox_memory_usage.py

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#!/usr/bin/env python3
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"""
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_username [fritzbox username]
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env.fritzbox_password [fritzbox password]
This plugin supports the following munin configuration parameters:
#%# family=auto contrib
#%# capabilities=autoconf
"""
import json
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import os
import sys
import fritzbox_helper as fh
PAGE = "ecoStat"
USAGE = ["strict", "cache", "free"]
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def get_memory_usage():
"""get the current memory usage"""
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server = os.environ["fritzbox_ip"]
username = os.environ["fritzbox_username"]
password = os.environ["fritzbox_password"]
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session_id = fh.get_session_id(server, username, password)
xhr_data = fh.get_xhr_content(server, session_id, PAGE)
data = json.loads(xhr_data)
for i, usage in enumerate(USAGE):
print("%s.value %s" % (usage, data["data"]["ramusage"]["series"][i][-1]))
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def print_config():
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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 os.environ.get("host_name"):
print("host_name " + os.environ["host_name"])
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if __name__ == "__main__":
if len(sys.argv) == 2 and sys.argv[1] == "config":
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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")