Additional scripts for Zabbix agent on Linux to discover and monitor several services
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#!/usr/bin/perl -w
use strict;
use warnings;
use JSON;
use Getopt::Long;
use LWP::UserAgent;
use HTTP::Cookies;
use URI;
use Data::Dumper;
umask 077;
my $user = 'zabbix';
my $pass = 'secret';
my $site = 'default';
my $url = 'https://localhost:8443';
my $certcheck = 1;
my $unifi;
my $dev;
my $station;
my $net;
my $wlan;
my $pretty = 0;
my $json = {};
my $site_id;
GetOptions (
'user=s' => \$user,
'password|p=s' => \$pass,
'site=s' => \$site,
'url=s' => \$url,
'cert-check!' => \$certcheck,
'unifi' => \$unifi,
'dev=s' => \$dev,
'station=s' => \$station,
'net=s' => \$net,
'wlan=s' => \$wlan,
'pretty' => \$pretty
);
# If connecting to localhost, no need to check certificate
my $uri = URI->new($url);
if ($uri->host =~ m/^localhost|127\.0\.0/){
$certcheck = 0;
}
my @radio_proto = qw/a b g na ng ac/;
my $resp;
my $username = $ENV{LOGNAME} || $ENV{USER} || getpwuid($<);
my $cj = HTTP::Cookies->new(
file => "/tmp/.unifi_$username.txt",
autosave => 1,
ignore_discard => 1
);
my $sslopts = {};
if (not $certcheck){
$sslopts = { verify_hostname => 0, SSL_verify_mode => 0 }
}
my $ua = LWP::UserAgent->new(
ssl_opts => $sslopts,
cookie_jar => $cj
);
# Check if we need to login
$resp = $ua->get($url . '/api/self/sites');
if ($resp->is_error){
# Log into the API
$resp = $ua->post(
$url . '/api/login',
Content => to_json({ username => $user, password => $pass }),
Content_Type => 'application/json;charset=UTF-8'
);
die "Login failed: " . $resp->message . "\n" if $resp->is_error;
$resp = $ua->get($url . '/api/self/sites');
die $resp->message . "\n" if $resp->is_error;
}
# Now, we need to get the site ID
foreach (@{from_json($resp->decoded_content)->{data}}){
if ($_->{name} eq $site || $_->{desc} eq $site){
$site_id = $_->{_id};
# If site is referenced by description, translate it to name
$site = $_->{name} if ($_->{name} ne $site);
last;
}
}
die "Site $site not found\n" unless ($site_id);
# Global info about the instance of Unifi
if ($unifi){
$resp = $ua->get($url . '/api/s/' . $site . '/stat/health');
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
foreach my $entry (@{from_json($resp->decoded_content)->{data}}){
if ($entry->{subsystem} eq 'wlan'){
$json->{wireless_clients} = $entry->{num_user};
$json->{wireless_guests} = $entry->{num_guest};
} elsif ($entry->{subsystem} eq 'lan'){
$json->{wired_clients} = $entry->{num_user};
$json->{wired_guests} = $entry->{num_guest};
}
foreach (qw/adopted pending disabled/){
$json->{'dev_' . $_} += $entry->{'num_' . $_} if (defined $entry->{'num_' . $_});
}
foreach (qw/num_ap num_sw num_gw/){
$json->{$_} += $entry->{$_} if ($entry->{$_});
}
}
$json->{$_} ||= 0 foreach (qw/wireless_clients wireless_guests
wired_clients wired_guests dev_adopted
dev_pending dev_disabled num_ap num_sw
num_gw/);
$resp = $ua->get($url . '/api/s/' . $site . '/stat/sysinfo');
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
$json->{$_} = from_json($resp->decoded_content)->{data}->[0]->{$_}
foreach (qw/version build update_available/);
# Get unarchived alarms
$resp = $ua->post($url . '/api/s/' . $site . '/stat/alarm',
Content => to_json({ archived => 'false' }),
Content_Type => 'application/json;charset=UTF-8'
);
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
$json->{alarm} = scalar @{from_json($resp->decoded_content)->{data}};
} elsif ($dev) {
# Dev is identified by MAC
$resp = $ua->get($url . '/api/s/' . $site . '/stat/device/' . $dev);
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
my $obj = from_json($resp->decoded_content)->{data}->[0];
foreach (qw/sys_stats locating serial name num_sta user-num_sta
guest-num_sta inform_url version model state type
cfgversion adopted avg_client_signal/){
$json->{$_} = $obj->{$_} if (defined $obj->{$_});
}
# Convert last seen into a relative time
$json->{last_seen} = time - $obj->{last_seen};
# Add some more info in sys_stats
$json->{sys_stats}->{$_} = $obj->{'system-stats'}->{$_} foreach (qw/cpu mem uptime/);
# If this is an ap
if ($obj->{type} eq 'uap'){
foreach (qw/guest-rx_packets guest-tx_packets guest-rx_bytes
guest-tx_bytes user-rx_packets user-tx_packets
user-rx_bytes user-tx_bytes rx_packets tx_packets
rx_bytes tx_bytes rx_errors tx_errors
rx_dropped tx_dropped/){
$json->{net_stats}->{$_} = $obj->{stat}->{ap}->{$_} if (defined $obj->{stat}->{ap}->{$_});
}
# Count the number of SSID served
$json->{num_wlan} = scalar @{$obj->{radio_table}};
$resp = $ua->get($url . '/api/s/' . $site . '/stat/sta');
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
foreach my $proto (@radio_proto){
$json->{$_ . $proto} = 0 foreach (qw/num_sta_ avg_rx_rate_ avg_tx_rate_/);
}
foreach my $entry (@{from_json($resp->decoded_content)->{data}}){
next if (not $entry->{ap_mac} or $entry->{ap_mac} ne $dev or $entry->{is_wired} == JSON::PP::true);
foreach (@radio_proto){
if ($entry->{radio_proto} eq $_){
$json->{'num_sta_' . $_}++;
$json->{'avg_rx_rate_' . $_} += $entry->{rx_rate};
$json->{'avg_tx_rate_' . $_} += $entry->{tx_rate};
}
}
$json->{$_} += $entry->{$_} foreach (qw/rx_bytes tx_bytes rx_packets tx_packets/);
$json->{'avg_' . $_} += $entry->{$_} foreach (qw/satisfaction tx_power signal noise/);
}
# Now lets compute average values
$json->{'avg_' . $_} = ($json->{num_sta} == 0) ? undef : $json->{'avg_' . $_} / $json->{num_sta}
foreach (qw/satisfaction tx_power signal noise/);
foreach my $proto (@radio_proto){
$json->{'avg_' . $_ . '_rate_' . $proto} = ($json->{'num_sta_' . $proto} == 0) ?
undef : $json->{'avg_' . $_ . '_rate_' . $proto} / $json->{'num_sta_' . $proto}
foreach (qw/tx rx/);
}
} elsif ($obj->{type} eq 'usw'){
foreach (qw/rx_packets tx_packets
rx_bytes tx_bytes rx_errors tx_errors
rx_dropped tx_dropped/){
$json->{net_stats}->{$_} = $obj->{stat}->{sw}->{$_} if (defined $obj->{stat}->{sw}->{$_});
}
}
} elsif ($station) {
# Client is identified by MAC
$resp = $ua->get($url . '/api/s/' . $site . '/stat/sta/' . $station);
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
my $obj = from_json($resp->decoded_content)->{data}->[0];
my @client_base = qw/rx_packets tx_packets rx_bytes tx_bytes hostname last_seen ip authorized oui is_guest/;
foreach (@client_base){
$json->{$_} = $obj->{$_} || 0;
}
# Convert last_seen to relative
$json->{last_seen} = time - $json->{last_seen};
# For wireless stations, we gather some more info
if ($obj->{is_wired} == JSON::PP::false){
my @client_wireless = qw/rx_rate tx_rate essid ap_mac tx_power radio_proto signal noise satisfaction/;
foreach (@client_wireless){
$json->{$_} = $obj->{$_} || 0;
}
# We have the MAC of the AP, lets try to find the name of this AP
$resp = $ua->get($url . '/api/s/' . $site . '/stat/device/' . $json->{ap_mac});
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
$json->{ap} = from_json($resp->decoded_content)->{data}->[0]->{name};
}
} elsif ($wlan) {
# Wlan is identified by ID
$resp = $ua->get($url . '/api/s/' . $site . '/rest/wlanconf/' . $wlan);
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
my $obj = from_json($resp->decoded_content)->{data}->[0];
foreach (qw/name security mac_filter_policy vlan/){
$json->{$_} = $obj->{$_};
}
# For boolean, we need to convert
foreach (qw/enabled is_guest mac_filter_enabled vlan_enabled/){
$json->{$_} = (defined $obj->{$_} and $obj->{$_} == JSON::PP::true) ? 1 : 0;
}
# Now, we need to count stations for each SSID
$resp = $ua->get($url . '/api/s/' . $site . '/stat/sta');
die "ZBX_NOTSUPPORTED\n" if $resp->is_error;
# Set default values to 0
$json->{num_sta} = 0;
$json->{'num_sta_' . $_} = 0 foreach (@radio_proto);
$json->{$_} = 0 foreach (qw/rx_bytes tx_bytes rx_packets tx_packets/);
foreach my $entry (@{from_json($resp->decoded_content)->{data}}){
next if (not $entry->{essid} or $entry->{essid} ne $json->{name} or $entry->{is_wired} == JSON::PP::true);
$json->{num_sta}++;
foreach (@radio_proto){
if ($entry->{radio_proto} eq $_){
$json->{'num_sta_' . $_}++;
$json->{'avg_rx_rate_' . $_} += $entry->{rx_rate};
$json->{'avg_tx_rate_' . $_} += $entry->{tx_rate};
}
}
$json->{$_} += $entry->{$_} foreach (qw/rx_bytes tx_bytes rx_packets tx_packets/);
$json->{'avg_' . $_} += $entry->{$_} foreach (qw/satisfaction tx_power signal noise/);
}
# Now lets compute average values
$json->{'avg_' . $_} = ($json->{num_sta} == 0) ? undef : $json->{'avg_' . $_} / $json->{num_sta}
foreach (qw/satisfaction tx_power signal noise/);
foreach my $proto (@radio_proto){
$json->{'avg_' . $_ . '_rate_' . $proto} = ($json->{'num_sta_' . $proto} == 0) ?
undef : $json->{'avg_' . $_ . '_rate_' . $proto} / $json->{'num_sta_' . $proto}
foreach (qw/tx rx/);
}
}
print to_json($json, { pretty => $pretty });