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add code to load country code by user IP address
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Mar 19, 2022
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "log" | ||
| "net" | ||
| "net/http" | ||
| "strings" | ||
| "github.com/gobuffalo/packr" | ||
| "github.com/oschwald/geoip2-golang" | ||
| ) | ||
|
|
||
| var ( | ||
| geoipBytes []byte | ||
| geoip * geoip2.Reader | ||
| ) | ||
|
|
||
|
|
||
| func initGeoIP() { | ||
| var err error | ||
| box := packr.NewBox("../ui") | ||
| geoipBytes, err = box.Find("site/GeoLite2-Country.mmdb") | ||
| if err != nil { | ||
| log.Fatalf("Failed to load geoip database file") | ||
| return | ||
| } | ||
| geoip, err = geoip2.FromBytes(geoipBytes) | ||
| if err != nil { | ||
| log.Fatalf("Failed to load geoip database") | ||
| return | ||
| } | ||
| //captchaKey = h | ||
| } | ||
|
|
||
| func getCountry(r *http.Request) string { | ||
| userIP := "" | ||
| //log.Printf("Headers %v", r.Header) | ||
| if len(r.Header.Get("CF-Connecting-IP")) > 1 { | ||
| userIP = strings.TrimSpace(r.Header.Get("CF-Connecting-IP")) | ||
| } | ||
| if len(r.Header.Get("X-Forwarded-For")) > 1 && len(userIP) == 0 { | ||
| userIP = strings.TrimSpace(r.Header.Get("X-Forwarded-For")) | ||
| } | ||
| if len(r.Header.Get("X-Real-IP")) > 1 && len(userIP) == 0 { | ||
| userIP = strings.TrimSpace(r.Header.Get("X-Real-IP")) | ||
| } | ||
| if len(userIP) == 0 { | ||
| userIP = r.RemoteAddr | ||
| } | ||
| if strings.Contains(userIP, ",") { | ||
| userIP = strings.Split(userIP, ",")[0] | ||
| } | ||
| if strings.Contains(userIP, " ") { | ||
| userIP = strings.Split(userIP, " ")[0] | ||
| } | ||
| if len(userIP) == 0 { | ||
| return "" | ||
| } | ||
| ip := net.ParseIP(userIP) | ||
| if ip == nil { | ||
| if strings.Count(userIP, ":") == 1 { | ||
| userIP = strings.Split(userIP, ":")[0] | ||
| ip = net.ParseIP(userIP) | ||
| } | ||
| if ip == nil { | ||
| log.Printf("Failed to parse userIP: %s", userIP) | ||
| return "" | ||
| } | ||
| } | ||
| record, err := geoip.Country(ip) | ||
| if err != nil { | ||
| log.Printf("Failed to detect country using IP address: %s", userIP) | ||
| return "" | ||
| } | ||
| return record.Country.IsoCode | ||
| } |
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