Nginx Configuration Detect User-Agent

example.com.conf

server {
	listen 80;
	listen 443 ssl http2;
	server_name example.com;
	root /path/to/public/www;

	# ADD HEADERS
	# Using nginx-http-mod-headers-more
	# https://github.com/openresty/headers-more-nginx-module
	more_set_headers 'X-Browser-Os: $client_browser_os';
	more_set_headers 'X-Browser-Name: $client_browser_name';
	more_set_headers 'X-Browser-Version: $client_browser_version';
	more_set_headers 'X-Browser-Device: $client_browser_device';

	location / {
		try_files $uri $uri/ /index.php$is_args$args;
	}
}

map.nginx.conf

# CUSTOM MAP DETECT USER AGENT
# INCLUDE on nginx.conf

map $http_user_agent $client_browser_operating_system {
	default '';
	'~^\s*Mozilla/[^\(]+\s*\(\s*([^\)]+[\)]?\s*)\)' $1;
}

map $http_user_agent $client_browser_identifier {
	default '';
	'~^\s*Mozilla/.+\)\s+([^/]+/[^\s]+.*)\s*' $1;
}

map $client_browser_operating_system $client_browser_os {
	default '';
	'~*(ip[ao]d|iphone|ios)' iOS;
	'~*(symbian)' Symbian;
	'~*(android)' Android;
	'~*Win(dows)?[^;0-9]*11' 'Windows 11';
	'~*Win(dows)?[^;0-9]*10' 'Windows 10';
	'~*Win(dows)?[^;0-9]*8' 'Windows 8';
	'~*Win(dows)?[^;0-9]*7' 'Windows 7';
	'~*Win(dows)?[^;0-9]*6' 'Windows XP';
	'~*Win' Windows;
	'~*fedora' Fedora;
	'~*cloudlinux' CloudLinux;
	'~*mint' LinuxMint;
	'~*Elementary.*Linux' 'Elementary Os';
	'~*ubuntu' Ubuntu;
	'~*centos' CentOS;
	'~*redhat' Redhat;
	'~*arch' ArchLinux;
	# MAC OS - ADD ADDITIONAL VERSION by 10.xx or 11.xx or 12.xx
	'~*Mac[^0-9]+12[\._][0-9]+' 'MacOS Monterey';
	'~*Mac[^0-9]+(?:10[\._]16|11[\._][0-9]+)' 'MacOS BigSur';
	'~*Mac[^0-9]+10[\._]15' 'MacOS Catalina';
	'~*Mac[^0-9]+10[\._]14' 'MacOS Mojave';
	'~*Mac[^0-9]+10[\._]13' 'MacOS High Sierra';
	'~*Mac[^0-9]+10[\._]12' 'MacOS Sierra';
	'~*Mac[^0-9]+10[\._]11' 'MacOS X El-Capitan';
	'~*Mac[^0-9]+10[\._]10' 'MacOS X Yosemite';
	'~*Mac[^0-9]+10[\._]9' 'MacOS X Mavericks';
	'~*Mac[^0-9]+10[\._]8' 'MacOS X Mountain Lion';
	'~*Mac[^0-9]+10[\._]7' 'MacOS X Lion';
	'~*Mac[^0-9]+10[\._]6' 'MacOS X Snow Leopard';
	'~*Mac[^0-9]+10[\._]5' 'MacOS X Leopard';
	'~*Mac[^0-9]+10[\._]4' 'MacOS X Tiger';
	'~*Mac[^0-9]+10[\._]3' 'MacOS X Panther';
	'~*Mac[^0-9]+10[\._]2' 'MacOS X Jaguar';
	'~*Mac[^0-9]+10[\._]1' 'MacOS X Puma';
	'~*Mac' MacOS;
	'~*linux' Linux;
}
map $client_browser_operating_system $client_browser_device {
	default '';
	'~*iPad' iPad;
	'~*iPhone' iPhone;
	#! SAMSUNG - JUST FOR GUESS
	# ----------------------------
	# Galaxy S
	'~*[^;]+;[^;]+;\s*GT-I9300' 'Samsung Galaxy S3';
	'~*[^;]+;[^;]+;\s*SCH-I545' 'Samsung Galaxy S4';
	'~*[^;]+;[^;]+;\s*SM-G900' 'Samsung Galaxy S5';
	'~*[^;]+;[^;]+;\s*SM-G920' 'Samsung Galaxy S6';
	'~*[^;]+;[^;]+;\s*SM-G925' 'Samsung Galaxy S6 Edge';
	'~*[^;]+;[^;]+;\s*SM-G930' 'Samsung Galaxy S7';
	'~*[^;]+;[^;]+;\s*SM-G935' 'Samsung Galaxy S7 Edge';
	'~*[^;]+;[^;]+;\s*SM-G950' 'Samsung Galaxy S8';
	'~*[^;]+;[^;]+;\s*SM-G955' 'Samsung Galaxy S8+';
	'~*[^;]+;[^;]+;\s*SM-G960' 'Samsung Galaxy S9';
	'~*[^;]+;[^;]+;\s*SM-G965' 'Samsung Galaxy S9+';
	'~*[^;]+;[^;]+;\s*SM-G973' 'Samsung Galaxy S10';

	# Galaxy A
	'~*[^;]+;[^;]+;\s*SM-(A[3-9])' 'Samsung Galaxy $1';
	# NOTE
	'~*[^;]+;[^;]+;\s*SM-N90' 'Samsung Galaxy Note 3';
	'~*[^;]+;[^;]+;\s*SM-N91' 'Samsung Galaxy Note 4';
	'~*[^;]+;[^;]+;\s*SM-N92' 'Samsung Galaxy Note 5';
	'~*[^;]+;[^;]+;\s*SM-N93' 'Samsung Galaxy Note 6';
	'~*[^;]+;[^;]+;\s*SM-N94' 'Samsung Galaxy Note 7';
	'~*[^;]+;[^;]+;\s*SM-N95' 'Samsung Galaxy Note 8';
	'~*[^;]+;[^;]+;\s*SM-N96' 'Samsung Galaxy Note 8';

	'~*[^;]+;[^;]+;\s*S(CH|M)-G' 'Samsung Galaxy';
	'~*[^;]+;[^;]+;\s*SM-N' 'Samsung Galaxy Note';
	'~*[^;]+;[^;]+;\s*GT' 'Samsung Galaxy Tab';
	# ADD OTHER HERE
	# ----
	# Just Detect End Of Data
	'~*[^;]+;[^;]+;\s*(.+)\s*(?:Build/.*)$' $1;
	'~*[^;]+;[^;]+;\s*(.+)\s*(?:\s+[^/]+/.*)$' $1;
	'~*[^;]+;[^;]+;\s*(.+)\s*$' $1;
	'~*[^;]+;[^;]+;\s*([^/]+)$' $1;
	'~*([^;]+);\s*[^;/]+$' $1;
}

map $client_browser_identifier $client_browser_name {
	default '';
	'~*Chrome/.*Mobile' 'Chrome Mobile';
	'~*Chrome/' 'Chrome';
	'~*Firefox/.*Mobile' 'Firefox Mobile';
	'~*Firefox/' 'Firefox';
	'~*Opera/.*Mobile' 'Opera Mobile';
	'~*Opera/' 'Opera';
	'~*Opera Mini' 'Opera Mini Mobile';
	'~*^(?:Version/[^/\s]+)?\s*(?:Mobile/[^/\s]+)([^/]+)/' '$1 Mobile';
	'~*([^/]+)/.+Mobile' '$1 Mobile';
	'~*([^/]+)/' $1;
}

map $client_browser_identifier $client_browser_version {
	default '';
	'~[^/]+/([^\s]+)' $1;
}

When User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1, it returns Safari Mobile with a leading space (GitHub's markdown doesn't show leading space).

This need to change:

'~*^(?:Version/[^/\s]+)?\s*(?:Mobile/[^/\s]+)([^/]+)/' '$1 Mobile';

to

'~*^(?:Version/[^/\s]+)?\s*(?:Mobile/[^/\s]+)\s*([^/]+)/' '$1 Mobile';

When User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1, it returns Safari Mobile with a leading space (GitHub's markdown doesn't show leading space).

This need to change:

'~*^(?:Version/[^/\s]+)?\s*(?:Mobile/[^/\s]+)([^/]+)/' '$1 Mobile';

to

'~*^(?:Version/[^/\s]+)?\s*(?:Mobile/[^/\s]+)\s*([^/]+)/' '$1 Mobile';

it's ok cause [^/]+ it also allow contains whitespace.

BTW, this gist just for fun 😅