1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
# Copyright 2014 Huawei Technologies Co. Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Health Check module for Squid service."""
import commands
import os
import pwd
import socket
from compass.actions.health_check import base
from compass.actions.health_check import utils as health_check_utils
class SquidCheck(base.BaseCheck):
"""Squid health check class."""
NAME = "Squid Check"
def run(self):
"""do health check."""
self.check_squid_files()
print "[Done]"
self.check_squid_service()
print "[Done]"
if self.code == 1:
self.messages.append(
"[%s]Info: Squid health check has completed. "
"No problems found, all systems go." % self.NAME)
return (self.code, self.messages)
def check_squid_files(self):
"""Validates squid config, cache directory and ownership."""
print "Checking Squid Files......",
var_map = {
'match_squid_conf': False,
'match_squid_cache': False,
'match_squid_ownership': False,
}
conf_err_msg = health_check_utils.check_path(
self.NAME,
"/etc/squid/squid.conf")
if not conf_err_msg == "":
self._set_status(0, conf_err_msg)
elif int(oct(os.stat('/etc/squid/squid.conf').st_mode)) < 100644:
self._set_status(
0,
"[%s]Error: squid.conf has incorrect "
"file permissions" % self.NAME)
else:
var_map['match_squid_conf'] = True
squid_path_err_msg = health_check_utils.check_path(
self.NAME, '/var/squid/')
if not squid_path_err_msg == "":
self._set_status(0, squid_path_err_msg)
elif health_check_utils.check_path(
self.NAME,
'/var/squid/cache'
) != "":
self._set_status(
0,
health_check_utils.check_path(
self.NAME,
'/var/squid/cache'
)
)
else:
var_map['match_squid_cache'] = True
uid = os.stat('/var/squid/').st_uid
gid = os.stat('/var/squid/').st_gid
if uid != gid or pwd.getpwuid(23).pw_name != 'squid':
self._set_status(
0,
"[%s]Error: /var/squid directory ownership "
"misconfigured" % self.NAME)
else:
var_map['match_squid_ownership'] = True
fails = []
for key in var_map.keys():
if var_map[key] is False:
fails.append(key)
if len(fails) != 0:
self.messages.append(
"[%s]Info: Failed components for squid config: "
"%s" % (
self.NAME,
', '.join(item for item in fails)
)
)
return True
def check_squid_service(self):
"""Checks if squid is running on port 3128."""
print "Checking Squid service......",
if 'squid' not in commands.getoutput('ps -ef'):
self._set_status(
0,
"[%s]Error: squid service does not seem "
"running" % self.NAME)
try:
if 'squid' != socket.getservbyport(3128):
self._set_status(
0,
"[%s]Error: squid is not listening on "
"3128" % self.NAME)
except Exception:
self._set_status(
0,
"[%s]Error: No service is listening on 3128, "
"squid failed" % self.NAME)
return True
|
