Package ua.Parse(userAgent string) function parses browser's and bot's user agents strings and determins:
- User agent name and version (Chrome, Firefox, Googlebot, etc.)
- Operating system name and version (Windows, Android, iOS etc.)
- Device type (mobile, desktop, tablet, bot)
- Device name if available (iPhone, iPad, Huawei VNS-L21)
- URL provided by the bot (https://www.google.com/bot.html etc.)
Still need some work on detecting Andorid device names.
go get github.com/mileusna/useragent
package main
import (
"fmt"
"strings"
"github.com/mileusna/useragent"
)
func main() {
userAgents := []string{
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.1.2 Safari/603.3.8",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36",
"Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.0 Mobile/14F89 Safari/602.1",
"Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) FxiOS/8.1.1b4948 Mobile/14F89 Safari/603.2.4",
"Mozilla/5.0 (iPad; CPU OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.0 Mobile/14F89 Safari/602.1",
"Mozilla/5.0 (Linux; Android 4.3; GT-I9300 Build/JSS15J) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.125 Mobile Safari/537.36",
"Mozilla/5.0 (Android 4.3; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0",
"Mozilla/5.0 (Linux; Android 4.3; GT-I9300 Build/JSS15J) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.91 Mobile Safari/537.36 OPR/42.9.2246.119956",
"Opera/9.80 (Android; Opera Mini/28.0.2254/66.318; U; en) Presto/2.12.423 Version/12.16",
}
for _, s := range userAgents {
ua := ua.Parse(s)
fmt.Println()
fmt.Println(ua.String)
fmt.Println(strings.Repeat("=", len(ua.String)))
fmt.Println("Name:", ua.Name, "v", ua.Version)
fmt.Println("OS:", ua.OS, "v", ua.OSVersion)
fmt.Println("Device:", ua.Device)
if ua.Mobile {
fmt.Println("(Mobile)")
}
if ua.Tablet {
fmt.Println("(Tablet)")
}
if ua.Desktop {
fmt.Println("(Desktop)")
}
if ua.Bot {
fmt.Println("(Bot)")
}
if ua.URL != "" {
fmt.Println(ua.URL)
}
}
}
Beside UserAgent{} struct and its properties returned by ua.Parse(), there is a bunch of shorthand functions for most popular browsers and operating systems, so this code:
ua := ua.Parse(userAgentString)
if ua.OS == "Android" && ua.Name == "Chrome" {
// do something
}can be also written on this way:
ua := ua.Parse(userAgentString)
if ua.IsAndroid() && ua.IsChrome() {
// do something
}- Opera and Opera Mini are two browsers, since they operate on very different ways.
- If Googlebot (or any other bot) is detected and it is using its mobile crawler, both
botandmobileflags will be set totrue.