1 // Copyright 2010 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package main 6 7 import ( 8 "html/template" 9 "io/ioutil" 10 "net/http" 11 ) 12 13 type Page struct { 14 Title string 15 Body []byte 16 } 17 18 func (p *Page) save() error { 19 filename := p.Title + ".txt" 20 return ioutil.WriteFile(filename, p.Body, 0600) 21 } 22 23 func loadPage(title string) (*Page, error) { 24 filename := title + ".txt" 25 body, err := ioutil.ReadFile(filename) 26 if err != nil { 27 return nil, err 28 } 29 return &Page{Title: title, Body: body}, nil 30 } 31 32 func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) { 33 t, _ := template.ParseFiles(tmpl + ".html") 34 t.Execute(w, p) 35 } 36 37 func viewHandler(w http.ResponseWriter, r *http.Request) { 38 title := r.URL.Path[len("/view/"):] 39 p, _ := loadPage(title) 40 renderTemplate(w, "view", p) 41 } 42 43 func editHandler(w http.ResponseWriter, r *http.Request) { 44 title := r.URL.Path[len("/edit/"):] 45 p, err := loadPage(title) 46 if err != nil { 47 p = &Page{Title: title} 48 } 49 renderTemplate(w, "edit", p) 50 } 51 52 func main() { 53 http.HandleFunc("/view/", viewHandler) 54 http.HandleFunc("/edit/", editHandler) 55 //http.HandleFunc("/save/", saveHandler) 56 http.ListenAndServe(":8080", nil) 57 } 58
