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2c09ab8f87 | ||
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c208afabf1 |
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Before Width: | Height: | Size: 34 KiB After Width: | Height: | Size: 34 KiB |
31
main.go
31
main.go
@@ -2,6 +2,7 @@ package main
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import (
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"os"
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"net"
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"strconv"
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"strings"
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"sync"
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@@ -25,6 +26,28 @@ var (
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mu sync.Mutex
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)
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func getClientIP(r *http.Request) string {
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// 1. Prüfe den X-Forwarded-For Header (Standard für Proxies)
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xForwardedFor := r.Header.Get("X-Forwarded-For")
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if xForwardedFor != "" {
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// Der Header kann eine Liste von IPs sein (Client, Proxy1, Proxy2)
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// Die erste IP in der Liste ist die echte Client-IP
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ips := strings.Split(xForwardedFor, ",")
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return strings.TrimSpace(ips[0])
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}
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// 2. Fallback auf X-Real-IP (oft von Traefik/Nginx gesetzt)
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xRealIP := r.Header.Get("X-Real-IP")
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if xRealIP != "" {
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return xRealIP
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}
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// 3. Letzter Ausweg: Die direkte IP (wird in deinem Fall die Traefik-IP sein)
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// RemoteAddr enthält oft auch den Port (z.B. "127.0.0.1:1234")
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ip, _, _ := net.SplitHostPort(r.RemoteAddr)
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return ip
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}
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// Diese Funktion wird nur intern aufgerufen, wenn der Mutex bereits gesperrt ist
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func getCount() int {
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data, err := os.ReadFile(counterFile)
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@@ -91,6 +114,8 @@ func generatePassword() string {
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}
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func passwordHandler(w http.ResponseWriter, r *http.Request) {
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clientIP := getClientIP(r)
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log.Printf("passwordHandler aufrerufen von IP: %s\n", clientIP)
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if debug { log.Printf("called passwordHandler\n") }
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password := generatePassword()
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currentCount := GetPasswordCount()
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@@ -108,6 +133,8 @@ func passwordHandler(w http.ResponseWriter, r *http.Request) {
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}
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func passwordAPIHandler(w http.ResponseWriter, r *http.Request) {
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clientIP := getClientIP(r)
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log.Printf("passwordAPIHandler aufrerufen von IP: %s\n", clientIP)
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if debug { log.Printf("called passwordHandler\n") }
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password := generatePassword()
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w.Header().Set("Content-Type", "text/plain")
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@@ -115,6 +142,8 @@ func passwordAPIHandler(w http.ResponseWriter, r *http.Request) {
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}
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func indexHandler(w http.ResponseWriter, r *http.Request) {
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clientIP := getClientIP(r)
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log.Printf("indexHandler aufrerufen von IP: %s\n", clientIP)
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if debug { log.Printf("call indexHandler: Request %s %s\n", r.Method, r.URL) }
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password := generatePassword()
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//password := "load..."
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@@ -132,6 +161,8 @@ func indexHandler(w http.ResponseWriter, r *http.Request) {
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}
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func helpHandler(w http.ResponseWriter, r *http.Request) {
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clientIP := getClientIP(r)
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log.Printf("helpHandler aufrerufen von IP: %s\n", clientIP)
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if debug { log.Printf("call helpHandler\n") }
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err := templates["help.html"].ExecuteTemplate(w, "base.html", nil)
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if err != nil {
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