snapshot of https://github.com/ory/kratos.git (master, 2026-09-15; blobs > 131072B omitted)

oryx/httpx/client_info.go

@@ -0,0 +1,72 @@
+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package httpx
+
+import (
+	"net"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+type GeoLocation struct {
+	City      string
+	Region    string
+	Country   string
+	Latitude  *float64
+	Longitude *float64
+}
+
+func GetClientIPAddressesWithoutInternalIPs(ipAddresses []string) (string, error) {
+	var res string
+
+	for i := len(ipAddresses) - 1; i >= 0; i-- {
+		ip := strings.TrimSpace(ipAddresses[i])
+
+		if !net.ParseIP(ip).IsPrivate() {
+			res = ip
+			break
+		}
+	}
+
+	return res, nil
+}
+
+func ClientIP(r *http.Request) string {
+	if trueClientIP := r.Header.Get("True-Client-IP"); trueClientIP != "" {
+		return trueClientIP
+	} else if cfConnectingIP := r.Header.Get("Cf-Connecting-IP"); cfConnectingIP != "" {
+		return cfConnectingIP
+	} else if realClientIP := r.Header.Get("X-Real-IP"); realClientIP != "" {
+		return realClientIP
+	} else if forwardedIP := r.Header.Get("X-Forwarded-For"); forwardedIP != "" {
+		ip, _ := GetClientIPAddressesWithoutInternalIPs(strings.Split(forwardedIP, ","))
+		return ip
+	} else {
+		return r.RemoteAddr
+	}
+}
+
+func parseFloatHeaderValue(headerValue string) *float64 {
+	if headerValue == "" {
+		return nil
+	}
+
+	val, err := strconv.ParseFloat(headerValue, 64)
+	if err != nil {
+		return nil
+	}
+
+	return &val
+}
+
+func ClientGeoLocation(r *http.Request) *GeoLocation {
+	return &GeoLocation{
+		City:      r.Header.Get("Cf-Ipcity"),
+		Region:    r.Header.Get("Cf-Region-Code"),
+		Country:   r.Header.Get("Cf-Ipcountry"),
+		Longitude: parseFloatHeaderValue(r.Header.Get("Cf-Iplongitude")),
+		Latitude:  parseFloatHeaderValue(r.Header.Get("Cf-Iplatitude")),
+	}
+}