feat: get client ip util

internal/util/location.go

@@ -2,7 +2,10 @@ package util
 
 import (
 	"encoding/json"
+	"log"
+	"net"
 	"net/http"
+	"strings"
 )
 
 type LocationResult struct {
@@ -14,7 +17,7 @@ type LocationResult struct {
 func GetLocation(ip string) (LocationResult, error) {
 	var loc LocationResult
 	// Example using ipinfo.io free API
-	resp, err := http.Get("https://ipinfo.io/" + ip + "/json")
+	resp, err := http.Get("http://ip-api.com/json/" + ip + "?fields=25")
 	if err != nil {
 		return loc, err
 	}
@@ -22,3 +25,22 @@ func GetLocation(ip string) (LocationResult, error) {
 	json.NewDecoder(resp.Body).Decode(&loc)
 	return loc, nil
 }
+
+func GetClientIP(r *http.Request) string {
+	// This header will be set by ngrok to the original client IP
+	if xff := r.Header.Get("X-Forwarded-For"); xff != "" {
+		log.Printf("DEBUG: Getting IP from X-Forwarded-For: %s\n", xff)
+		// X-Forwarded-For: client, proxy1, proxy2, ...
+		ips := strings.Split(xff, ",")
+		if len(ips) > 0 {
+			return strings.TrimSpace(ips[0])
+		}
+	}
+	// Fallback to RemoteAddr (not the real client IP, but just in case)
+	host, _, err := net.SplitHostPort(r.RemoteAddr)
+	log.Printf("DEBUG: Falling to request remote addr: %s (%s)\n", host, r.RemoteAddr)
+	if err != nil {
+		return r.RemoteAddr
+	}
+	return host
+}