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5 Commits
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Before Width: | Height: | Size: 33 KiB After Width: | Height: | Size: 34 KiB |
44
main.go
44
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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@@ -18,12 +19,35 @@ const (
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)
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var (
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debug = false
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templates = make(map[string]*template.Template)
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AppVersion = "development"
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counterFile = "/data/counter.txt"
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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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@@ -76,7 +100,7 @@ func loadTemplates() {
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}
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func generatePassword() string {
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log.Printf("called generatePassword\n")
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if debug { log.Printf("called generatePassword\n") }
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password := make([]byte, passwordLength)
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_, err := rand.Read(password)
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if err != nil {
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@@ -90,7 +114,9 @@ func generatePassword() string {
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}
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func passwordHandler(w http.ResponseWriter, r *http.Request) {
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log.Printf("called passwordHandler\n")
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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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response := map[string]interface{}{
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@@ -107,14 +133,18 @@ 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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log.Printf("called passwordHandler\n")
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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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w.Write([]byte(password))
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}
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func indexHandler(w http.ResponseWriter, r *http.Request) {
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log.Printf("call indexHandler: Request %s %s\n", r.Method, r.URL)
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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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data := struct {
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@@ -122,7 +152,7 @@ func indexHandler(w http.ResponseWriter, r *http.Request) {
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}{
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Password: password,
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}
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log.Printf("prepare template for index\n")
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if debug { log.Printf("prepare template for index\n") }
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err := templates["index.html"].ExecuteTemplate(w, "base.html", data)
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if err != nil {
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log.Printf("Fehler beim Rendern des Templates: %v", err)
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@@ -131,7 +161,9 @@ 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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log.Printf("call helpHandler\n")
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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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log.Printf("Fehler beim Rendern des Templates: %v", err)
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@@ -43,7 +43,7 @@
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<div class="container">
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<a href="/help" class="help-link">?</a>
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<a href="https://gitea.scu.si/Florian.Walther/Web-Password" class="code-link">Sourcecode</a>
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<h1>Generiertes Passwort</h1>
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<h1>Passwort Generator</h1>
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<div id="password">{{ .Password }}</div>
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<div class="buttons">
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<button class="copy-button" onclick="copyToClipboard()">In Zwischenablage kopieren</button>
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