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-rw-r--r--python.d/squid.chart.py112
1 files changed, 112 insertions, 0 deletions
diff --git a/python.d/squid.chart.py b/python.d/squid.chart.py
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+# -*- coding: utf-8 -*-
+# Description: squid netdata python.d module
+# Author: Pawel Krupa (paulfantom)
+
+from base import SocketService
+import select
+
+# default module values (can be overridden per job in `config`)
+# update_every = 2
+priority = 60000
+retries = 60
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['clients_net', 'clients_requests', 'servers_net', 'servers_requests']
+
+CHARTS = {
+ 'clients_net': {
+ 'options': [None, "Squid Client Bandwidth", "kilobits/s", "clients", "squid.clients_net", "area"],
+ 'lines': [
+ ["client_http_kbytes_in", "in", "incremental", 8, 1],
+ ["client_http_kbytes_out", "out", "incremental", -8, 1],
+ ["client_http_hit_kbytes_out", "hits", "incremental", -8, 1]
+ ]},
+ 'clients_requests': {
+ 'options': [None, "Squid Client Requests", "requests/s", "clients", "squid.clients_requests", 'line'],
+ 'lines': [
+ ["client_http_requests", "requests", "incremental"],
+ ["client_http_hits", "hits", "incremental"],
+ ["client_http_errors", "errors", "incremental", -1, 1]
+ ]},
+ 'servers_net': {
+ 'options': [None, "Squid Server Bandwidth", "kilobits/s", "servers", "squid.servers_net", "area"],
+ 'lines': [
+ ["server_all_kbytes_in", "in", "incremental", 8, 1],
+ ["server_all_kbytes_out", "out", "incremental", -8, 1]
+ ]},
+ 'servers_requests': {
+ 'options': [None, "Squid Server Requests", "requests/s", "servers", "squid.servers_requests", 'line'],
+ 'lines': [
+ ["server_all_requests", "requests", "incremental"],
+ ["server_all_errors", "errors", "incremental", -1, 1]
+ ]}
+}
+
+
+class Service(SocketService):
+ def __init__(self, configuration=None, name=None):
+ SocketService.__init__(self, configuration=configuration, name=name)
+ self._keep_alive = True
+ self.request = ""
+ self.host = "localhost"
+ self.port = 3128
+ self.order = ORDER
+ self.definitions = CHARTS
+
+ def _get_data(self):
+ """
+ Get data via http request
+ :return: dict
+ """
+ data = {}
+ try:
+ raw = ""
+ for tmp in self._get_raw_data().split('\r\n'):
+ if tmp.startswith("sample_time"):
+ raw = tmp
+ break
+ if raw.startswith('<'):
+ self.error("invalid data received")
+ return None
+ for row in raw.split('\n'):
+ if row.startswith(("client", "server.all")):
+ tmp = row.split("=")
+ data[tmp[0].replace('.', '_').strip(' ')] = int(tmp[1])
+ except (ValueError, AttributeError, TypeError):
+ self.error("invalid data received")
+ return None
+
+ if len(data) == 0:
+ self.error("no data received")
+ return None
+ else:
+ return data
+
+ def _check_raw_data(self, data):
+ if "Connection: keep-alive" in data[:1024]:
+ self._keep_alive = True
+ else:
+ self._keep_alive = False
+
+ if data[-7:] == "\r\n0\r\n\r\n" and "Transfer-Encoding: chunked" in data[:1024]: # HTTP/1.1 response
+ return True
+ else:
+ return False
+
+ def check(self):
+ """
+ Parse essential configuration, autodetect squid configuration (if needed), and check if data is available
+ :return: boolean
+ """
+ self._parse_config()
+ # format request
+ req = self.request.decode()
+ if not req.startswith("GET"):
+ req = "GET " + req
+ if not req.endswith(" HTTP/1.1\r\n\r\n"):
+ req += " HTTP/1.1\r\n\r\n"
+ self.request = req.encode()
+ if self._get_data() is not None:
+ return True
+ else:
+ return False