check_unifi.php

You need to install php-curl

Thanks to https://github.com/Art-of-WiFi
API Version 1.1.70

Note
Support for UniFi OS-based controllers (UniFi Dream Machine Pro or Cloud Key Gen2/Cloud Key Gen2 Plus with firmware version 2.0.24 or higher) has been added as of API version 1.1.47. The class automatically detects UniFi OS devices and adjusts URLs and several functions/methods accordingly. If your own code applies strict validation of the URL that is passed to the constructor, please adapt your logic to allow URLs without a port suffix when dealing with a UniFi OS-based controller.
In case of my script use -P 443 and -s

NEW
Version 1.20210601
add clients_ssid (count all clients for every ssid)
add clients_count_ssid clients_count_ssid_guest


/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -u nagios -p nagios -s -m uplink -a AP02 -w 200 -c 100
OK - Uplink: AP01 - signal=-67% tx_rate=234 Mbps rx_rate=526.5 Mbps | tx_rate=234;rx_rate=526.5;signal=67

/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -u nagios -p nagios -s -m cpu AP02 -w 80 -c 90
OK - 10.4% (load average: 0.01, 0.05, 0.05) | load=0.01;;;; load5=0.05;;;; load15=0.05;;;;

/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -u nagios -p nagios -s -m ap -w 0 -c 1
OK - AP [default]: 3 (Online: 3, Offline: 0) | AP=3 Online=3 Offline=0;0;1;;

/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -u nagios -p nagios -s -m switch -c 0
OK - Switch [default]: 1 (Online: 1 / Offline: 0) | Switch=1 Online=1 Offline=0;0;0;;

/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -u nagios -p nagios -s -m uplink -a AP01
OK - Uplink SWITCH01 (wire) - speed=1000 Mbps | speed=1000

/usr/bin/php ./check_unifi.php -C -m mem -a AP03 -w 80 -c 90
OK - 54.09 MB | Total=122.66MB;98.13;110.39;0;122.66 Used=54.09MB;;;; Free=40.37MB;;;; Caches=28.20MB;;;;

/usr/bin/php ./check_unifi.php -C -m mem% -a AP03 -w 80 -c 90
OK - 44.10% (54.09 MB) | Total=100%;80;90;0;100 Used=44.10%;;;; Free=32.91%;;;; Caches=22.99%;;;;

/usr/bin/php ./check_unifi.php -C -a AP01 -m clients_name_guest
OK - Clients [default]: 5/User:5/Guest:0 (2GHz: 2/U:2/G:0, 5GHz: 3/U:3/G:0) MACBOOK(5) VIRTUAL-WLAN(5) CAM01(2) TABLETT04(5) PRS01(2) | Clients=5;;;; 2GHz=2 5GHz=3

/usr/bin/php ./check_unifi.php -C -a AP01 -m channels
OK - 2GHz: auto (11(13,-1)) HT40 - 5GHz: auto (58(64,-1)) VHT80| 2GHz=11 5GHz=58

/usr/bin/php ./check_unifi.php -C -a AP01 -m transfer
OK - RX: 5,09 Mbit - TX: 166,84 Kbit | RX=5215,38Kbit;;;; TX=166,84Kbit;;;;

/usr/bin/php ./check_unifi.php -C -a AP01 -m experience -w 30 -c 20
OK - WIFI Experience: 99% | Experience=99%;30;20;;

/usr/bin/php ./check_unifi.php -C -a JHSAP01 -m utilisation -w 75,75 -c 85,85
OK - 2GHz Utilized: 11% (RX Frames: 9%, TX Frames: 1%, Interference: 1%) - 5GHz Utilized: 8% (RX Frames: 6%, TX Frames: 2%, Interference: 0%)| 2GHz=11;75;85;; RX=9;;;; TX=1;;;; Interference=1 5GHz=8;75;85;; RX=6;;;; TX=2;;;; Interference=0

/usr/bin/php ./check_unifi.php -C -a AP01 -m linux_cpu -w 75 -c 85
OK - 10.2% | cpu=10.2%;75;85;0;100

/usr/bin/php ./check_unifi.php -C -a AP01 -m linux_load -w 0.5,0.5,0.5 -c 1,1,1
OK - load average: 0.22, 0.08, 0.07 | load=0.22;0.5;1;; load5=0.08;0.5;1;; load15=0.07;0.5;1;;

/usr/bin/php ./check_unifi.php -C -m update -a AP02 -w 1,1,1 -c 1,5,10
CRITICAL - firmware upgradable from version 4.3.28.11361 to 5.43.30.12622

/usr/bin/php ./check_unifi.php -C -m site
---------+------------------------------------
Site ID | Site Name
---------+------------------------------------
default | unifi.jhoerter.com
a1uobpaz | Test

/usr/bin/php ./check_unifi.php -H 192.168.2.213 -P 8443 -s -u nagios -p nagios -S default -m uptime -a AP01
OK - UniFi AP-AC-Lite [unifi.jhoerter.com ] - 0 days, 3 hours, 44 mins.| Uptime=13445

/usr/bin/php ./check_unifi.php -C -m client_transfer+ -a PC05 -r 0
OK - RX: 2.743 KB/s - TX: 16.066 KB/s (AP: AP03) | RX=2.743KByte;;;; TX=16.066KByte;;;;

/usr/bin/php ./check_unifi.php -C -m client_uplink -a MACBOOK
OK - Uplink: JHSAP01 (JH/ 5GHz) - signal: -78% TX: 650 Mbps RX: 260 Mbps | TX=650;0;0;; RX=260;0;0;; Signal=78

/usr/bin/php ./check_unifi.php -C -m client_uptime -a PHONE04
OK - 0 days, 0 hours, 18 mins.| Uptime=1124

/usr/bin/php ./check_unifi.php -C -m clients_count_guest
OK - Clients [default]: 13/ User:11/ Guest:2 (2GHz: 8/U:8/G:0, 5GHz: 5/U:3/G:2) | Clients=13;;;; 2GHz=8;;;; 5GHz=5;;;; User=11;;;; 2GhzU=8;;;; 5GhzU=3;;;; Guest=0;;;; 2GhzG=0;;;; 5GhzG=2;;;;

/usr/bin/php ./check_unifi.php -C -m clients_all
OK - Clients [default]: 32 (Wired: 21, Wifi: 11) | Clients=32;;;; Wired=21;;;; Wifi=11;;;;

/usr/bin/php./check_unifi.php -C -m ap_unifi_name -w 0 -c 1
WARNING - AP: 4 (Online: 3, Offline: 1 (AP03-OLD)) | AP=4 Online=3 Offline=1;0;1;;

./check_unifi.php -C -m clients_ssid
OK - SSID Clients [default]: 13 (WLAN: 12, WLANGUEST: disabled, WLANCAM: 1) | Total=13 WLAN=12 WLANUEST=0 WLANCAM=1

./check_unifi.php -C -m clients_count_ssid -a WLAN
OK - SSID WLAN Client: 12 (2GHz: 7, 5GHz: 5) | Clients=12;;;; 2GHz=7 5GHz=5