package main import ( "fmt" "io/ioutil" "net/http" ) type Page struct { Title string Body []byte } func (p *Page) save() error { filename := p.Title + ".txt" return ioutil.WriteFile(filename, p.Body, 0600) } func loadPage(title string) (*Page, error) { filename := title + ".txt" body, err := ioutil.ReadFile(filename) if err != nil { return nil, err } return &Page{Title: title, Body: body}, nil } const lenPath = len("/view/") func viewHandler(w http.ResponseWriter, r *http.Request) { title := r.URL.Path[lenPath:] p, _ := loadPage(title) fmt.Fprintf(w, "

%s

%s
", p.Title, p.Body) } func editHandler(w http.ResponseWriter, r *http.Request) { title := r.URL.Path[lenPath:] p, err := loadPage(title) if err != nil { p = &Page{Title: title} } fmt.Fprintf(w, "

Editing %s

"+ "
"+ "
"+ ""+ "
", p.Title, p.Title, p.Body) } func main() { http.HandleFunc("/view/", viewHandler) http.HandleFunc("/edit/", editHandler) http.ListenAndServe(":8080", nil) }