c9296beb5f
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95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
package main
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import (
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"crypto/rand"
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"html/template"
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"log"
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"net/http"
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)
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const (
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passwordLength = 32
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chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
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)
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var templates = make(map[string]*template.Template)
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var AppVersion = "development"
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func loadTemplates() {
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// 1. FuncMap definieren
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funcMap := template.FuncMap{
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"getAppVersion": func() string {
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return AppVersion
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},
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}
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// 2. Templates mit FuncMap laden
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// Wir nutzen New("base.html"), da base.html meist das Haupt-Layout definiert
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templates["index.html"] = template.Must(template.New("base.html").Funcs(funcMap).ParseFiles(
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"templates/base.html",
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"templates/index.html",
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))
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templates["help.html"] = template.Must(template.New("base.html").Funcs(funcMap).ParseFiles(
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"templates/base.html",
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"templates/help.html",
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))
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log.Printf("Alle Templates erfolgreich geladen")
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}
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func generatePassword() string {
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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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log.Fatal(err)
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}
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for i := 0; i < passwordLength; i++ {
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password[i] = chars[int(password[i])%len(chars)]
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}
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return string(password)
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}
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func passwordHandler(w http.ResponseWriter, r *http.Request) {
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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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password := generatePassword()
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data := struct {
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Password string
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}{
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Password: password,
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}
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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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http.Error(w, "Interner Serverfehler", http.StatusInternalServerError)
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}
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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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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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http.Error(w, "Interner Serverfehler", http.StatusInternalServerError)
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}
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}
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func main() {
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loadTemplates()
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fs := http.FileServer(http.Dir("static"))
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http.Handle("/static/", http.StripPrefix("/static/", fs))
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http.HandleFunc("/", indexHandler)
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http.HandleFunc("/api/password", passwordHandler)
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http.HandleFunc("/help", helpHandler)
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log.Println("Server läuft auf http://localhost:8080")
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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