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124 lines
3.9 KiB
Python
124 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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# Description: squid netdata python.d module
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# Author: Pawel Krupa (paulfantom)
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# SPDX-License-Identifier: GPL-3.0-or-later
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from bases.FrameworkServices.SocketService import SocketService
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ORDER = [
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'clients_net',
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'clients_requests',
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'servers_net',
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'servers_requests',
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]
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CHARTS = {
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'clients_net': {
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'options': [None, 'Squid Client Bandwidth', 'kilobits/s', 'clients', 'squid.clients_net', 'area'],
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'lines': [
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['client_http_kbytes_in', 'in', 'incremental', 8, 1],
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['client_http_kbytes_out', 'out', 'incremental', -8, 1],
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['client_http_hit_kbytes_out', 'hits', 'incremental', -8, 1]
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]
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},
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'clients_requests': {
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'options': [None, 'Squid Client Requests', 'requests/s', 'clients', 'squid.clients_requests', 'line'],
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'lines': [
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['client_http_requests', 'requests', 'incremental'],
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['client_http_hits', 'hits', 'incremental'],
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['client_http_errors', 'errors', 'incremental', -1, 1]
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]
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},
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'servers_net': {
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'options': [None, 'Squid Server Bandwidth', 'kilobits/s', 'servers', 'squid.servers_net', 'area'],
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'lines': [
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['server_all_kbytes_in', 'in', 'incremental', 8, 1],
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['server_all_kbytes_out', 'out', 'incremental', -8, 1]
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]
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},
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'servers_requests': {
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'options': [None, 'Squid Server Requests', 'requests/s', 'servers', 'squid.servers_requests', 'line'],
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'lines': [
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['server_all_requests', 'requests', 'incremental'],
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['server_all_errors', 'errors', 'incremental', -1, 1]
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]
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}
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}
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class Service(SocketService):
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def __init__(self, configuration=None, name=None):
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SocketService.__init__(self, configuration=configuration, name=name)
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self._keep_alive = True
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self.request = ''
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self.host = 'localhost'
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self.port = 3128
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self.order = ORDER
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self.definitions = CHARTS
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def _get_data(self):
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"""
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Get data via http request
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:return: dict
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"""
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response = self._get_raw_data()
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data = dict()
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try:
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raw = ''
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for tmp in response.split('\r\n'):
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if tmp.startswith('sample_time'):
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raw = tmp
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break
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if raw.startswith('<'):
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self.error('invalid data received')
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return None
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for row in raw.split('\n'):
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if row.startswith(('client', 'server.all')):
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tmp = row.split('=')
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data[tmp[0].replace('.', '_').strip(' ')] = int(tmp[1])
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except (ValueError, AttributeError, TypeError):
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self.error('invalid data received')
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return None
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if not data:
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self.error('no data received')
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return None
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return data
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def _check_raw_data(self, data):
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header = data[:1024].lower()
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if 'connection: keep-alive' in header:
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self._keep_alive = True
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else:
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self._keep_alive = False
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if data[-7:] == '\r\n0\r\n\r\n' and 'transfer-encoding: chunked' in header: # HTTP/1.1 response
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self.debug('received full response from squid')
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return True
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self.debug('waiting more data from squid')
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return False
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def check(self):
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"""
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Parse essential configuration, autodetect squid configuration (if needed), and check if data is available
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:return: boolean
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"""
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self._parse_config()
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# format request
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req = self.request.decode()
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if not req.startswith('GET'):
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req = 'GET ' + req
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if not req.endswith(' HTTP/1.1\r\n\r\n'):
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req += ' HTTP/1.1\r\n\r\n'
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self.request = req.encode()
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if self._get_data() is not None:
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return True
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else:
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return False
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