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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#!/usr/bin/perl
use strict;
my $VERSION = '0.2';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff ';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
#### IDEA AND INITIAL IMPLEMENTATION BASED ON CHECK_IMAP_RECEIVE WAS CONTRIBUTED BY JOHAN ROMME from THE NETHERLANDS 14 Oct 2011
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Mail::IMAPClient/);
BEGIN {
if( grep { /^--hires$/ } _æ_ ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $ _æ_ ;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $username = "";
my $password = "";
my $mailbox = "INBOX";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $peek = "";
my $ssl = 0;
my $tls = 0;
my $time_hires = "";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
"U|username=s"=>\$username,"P|password=s"=>\$password, "m|mailbox=s"=>\$mailbox,
"ssl!"=>\$ssl, "tls!"=>\$tls,
# search settings
"peek!"=>\$peek,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
my _æ_ required_module = ();
push _æ_ required_module, 'IO::Socket::SSL' if $ssl || $tls;
exit $status{UNKNOWN} unless load_modules( _æ_ required_module);
if( $help_usage
||
( $imap_server eq "" || $username eq "" || $password eq "" )
) {
print "Usage: $0 -H host [-p port] -U username -P password [--imap-retries ]\n";
exit $status{UNKNOWN};
}
# initialize
my $report = new PluginReport;
my $time_start = time;
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
if( $ssl || $tls ) {
$imap_port = $default_imap_ssl_port unless $imap_port;
my $socket = IO::Socket::SSL->new("$imap_server:$imap_port");
die IO::Socket::SSL::errstr() unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
$imap->User($username);
$imap->Password($password);
$imap->login() or die "$ _æ_ ";
}
else {
$imap_port = $default_imap_port unless $imap_port;
$imap = Mail::IMAPClient->new(Debug => 0 );
$imap->Server("$imap_server:$imap_port");
$imap->User($username);
$imap->Password($password);
$imap->connect() or die "$ _æ_ ";
}
$imap->Peek(1) if $peek;
$imap->Ignoresizeerrors(1);
alarm 0;
};
if( $ _æ_ ) {
chomp $ _æ_ ;
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $ _æ_ \n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $ _æ_ \n";
exit $status{CRITICAL};
}
my $time_connected = time;
my $quotaUsed;
my $quotaLimit;
my $quotaPercentage;
my $quotaPercentageWarning = 80;
my $quotaPercentageCritical = 90;
my $quotaMessage;
# look for the quota limits
my $tries = 0;
my _æ_ msgs;
eval {
my $k;
my _æ_ l = $imap->getquotaroot();
foreach $k ( _æ_ l) {
print "$k\n" if $verbose > 2;
if ($k =~ /STORAGE +(\d+) +(\d+)/) {
$quotaUsed = $1;
$quotaLimit = $2;
}
}
if (!length($quotaUsed) && !length($quotaLimit)) {
print "no answer from imap host\n" if $verbose > 2;
} elsif (!length($quotaUsed) || !length($quotaLimit) {
print "incorrect answer from imap host\n";
$imap->close();
exit $status{UNKNOWN};
} else {
$quotaPercentage = sprintf("%.1f", (100 * $quotaUsed) / $quotaLimit);
$quotaMessage = "$quotaUsed $quotaLimit - $quotaPercentage%";
}
};
if( $ _æ_ ) {
chomp $ _æ_ ;
print "IMAP QUOTA CRITICAL - Could not check quota at $imap_server port $imap_port: $ _æ_ \n";
exit $status{CRITICAL};
}
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
# print report and exit with known status
if($quotaPercentage >= $quotaPercentageCritical) {
print "IMAP QUOTA CRITICAL - $quotaMessage\n";
exit $status{CRITICAL};
}
if($quotaPercentage >= $quotaPercentageWarning) {
print "IMAP QUOTA WARNING - $quotaMessage\n";
exit $status{WARNING};
}
print "IMAP QUOTA OK - $quotaMessage\n";
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my _æ_ missing_modules = ();
foreach( _æ_ _ ) {
eval "require $_";
push _æ_ missing_modules, $_ if $ _æ_ ;
}
if( _æ_ missing_modules ) {
print "Missing perl modules: _æ_ missing_modules\n";
return 0;
}
return 1;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = _æ_ _;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self, _æ_ labels) = _æ_ _;
my _æ_ report = map { "$self->{$_} $_" } grep { defined $self->{$_} } _æ_ labels;
my $text = join(", ", _æ_ report);
return $text;
}
package main;
1;
|
