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# -*- coding: utf-8 -*-
# Description: freeradius netdata python.d module
# Author: ilyam8
# SPDX-License-Identifier: GPL-3.0-or-later
import re
from subprocess import Popen, PIPE
from bases.collection import find_binary
from bases.FrameworkServices.SimpleService import SimpleService
update_every = 15
PARSER = re.compile(r'((?<=-)[AP][a-zA-Z-]+) = (\d+)')
RADIUS_MSG = 'Message-Authenticator = 0x00, FreeRADIUS-Statistics-Type = 15, Response-Packet-Type = Access-Accept'
RADCLIENT_RETRIES = 1
RADCLIENT_TIMEOUT = 1
DEFAULT_HOST = 'localhost'
DEFAULT_PORT = 18121
DEFAULT_DO_ACCT = False
DEFAULT_DO_PROXY_AUTH = False
DEFAULT_DO_PROXY_ACCT = False
ORDER = [
'authentication',
'accounting',
'proxy-auth',
'proxy-acct',
]
CHARTS = {
'authentication': {
'options': [None, 'Authentication', 'packets/s', 'authentication', 'freerad.auth', 'line'],
'lines': [
['access-accepts', None, 'incremental'],
['access-rejects', None, 'incremental'],
['auth-dropped-requests', 'dropped-requests', 'incremental'],
['auth-duplicate-requests', 'duplicate-requests', 'incremental'],
['auth-invalid-requests', 'invalid-requests', 'incremental'],
['auth-malformed-requests', 'malformed-requests', 'incremental'],
['auth-unknown-types', 'unknown-types', 'incremental']
]
},
'accounting': {
'options': [None, 'Accounting', 'packets/s', 'accounting', 'freerad.acct', 'line'],
'lines': [
['accounting-requests', 'requests', 'incremental'],
['accounting-responses', 'responses', 'incremental'],
['acct-dropped-requests', 'dropped-requests', 'incremental'],
['acct-duplicate-requests', 'duplicate-requests', 'incremental'],
['acct-invalid-requests', 'invalid-requests', 'incremental'],
['acct-malformed-requests', 'malformed-requests', 'incremental'],
['acct-unknown-types', 'unknown-types', 'incremental']
]
},
'proxy-auth': {
'options': [None, 'Proxy Authentication', 'packets/s', 'authentication', 'freerad.proxy.auth', 'line'],
'lines': [
['proxy-access-accepts', 'access-accepts', 'incremental'],
['proxy-access-rejects', 'access-rejects', 'incremental'],
['proxy-auth-dropped-requests', 'dropped-requests', 'incremental'],
['proxy-auth-duplicate-requests', 'duplicate-requests', 'incremental'],
['proxy-auth-invalid-requests', 'invalid-requests', 'incremental'],
['proxy-auth-malformed-requests', 'malformed-requests', 'incremental'],
['proxy-auth-unknown-types', 'unknown-types', 'incremental']
]
},
'proxy-acct': {
'options': [None, 'Proxy Accounting', 'packets/s', 'accounting', 'freerad.proxy.acct', 'line'],
'lines': [
['proxy-accounting-requests', 'requests', 'incremental'],
['proxy-accounting-responses', 'responses', 'incremental'],
['proxy-acct-dropped-requests', 'dropped-requests', 'incremental'],
['proxy-acct-duplicate-requests', 'duplicate-requests', 'incremental'],
['proxy-acct-invalid-requests', 'invalid-requests', 'incremental'],
['proxy-acct-malformed-requests', 'malformed-requests', 'incremental'],
['proxy-acct-unknown-types', 'unknown-types', 'incremental']
]
}
}
def radclient_status(radclient, retries, timeout, host, port, secret):
# radclient -r 1 -t 1 -x 127.0.0.1:18121 status secret
return '{radclient} -r {num_retries} -t {timeout} -x {host}:{port} status {secret}'.format(
radclient=radclient,
num_retries=retries,
timeout=timeout,
host=host,
port=port,
secret=secret,
).split()
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
self.order = ORDER
self.definitions = CHARTS
self.host = self.configuration.get('host', DEFAULT_HOST)
self.port = self.configuration.get('port', DEFAULT_PORT)
self.secret = self.configuration.get('secret')
self.do_acct = self.configuration.get('acct', DEFAULT_DO_ACCT)
self.do_proxy_auth = self.configuration.get('proxy_auth', DEFAULT_DO_PROXY_AUTH)
self.do_proxy_acct = self.configuration.get('proxy_acct', DEFAULT_DO_PROXY_ACCT)
self.echo = find_binary('echo')
self.radclient = find_binary('radclient')
self.sub_echo = [self.echo, RADIUS_MSG]
self.sub_radclient = radclient_status(
self.radclient, RADCLIENT_RETRIES, RADCLIENT_TIMEOUT, self.host, self.port, self.secret,
)
def check(self):
if not self.radclient:
self.error("Can't locate 'radclient' binary or binary is not executable by netdata user")
return False
if not self.echo:
self.error("Can't locate 'echo' binary or binary is not executable by netdata user")
return None
if not self.secret:
self.error("'secret' isn't set")
return None
if not self.get_raw_data():
self.error('Request returned no data. Is server alive?')
return False
if not self.do_acct:
self.order.remove('accounting')
if not self.do_proxy_auth:
self.order.remove('proxy-auth')
if not self.do_proxy_acct:
self.order.remove('proxy-acct')
return True
def get_data(self):
"""
Format data received from shell command
:return: dict
"""
result = self.get_raw_data()
if not result:
return None
return dict(
(key.lower(), value) for key, value in PARSER.findall(result)
)
def get_raw_data(self):
"""
The following code is equivalent to
'echo "Message-Authenticator = 0x00, FreeRADIUS-Statistics-Type = 15, Response-Packet-Type = Access-Accept"
| radclient -t 1 -r 1 host:port status secret'
:return: str
"""
try:
process_echo = Popen(self.sub_echo, stdout=PIPE, stderr=PIPE, shell=False)
process_rad = Popen(self.sub_radclient, stdin=process_echo.stdout, stdout=PIPE, stderr=PIPE, shell=False)
process_echo.stdout.close()
raw_result = process_rad.communicate()[0]
except OSError:
return None
if process_rad.returncode is 0:
return raw_result.decode()
return None
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