mirror of
https://github.com/golang/go
synced 2024-11-27 00:31:23 -07:00
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
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, "<h1>%s</h1><div>%s</div>", 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, "<h1>Editing %s</h1>"+
|
|
"<form action=\"/save/%s\" method=\"POST\">"+
|
|
"<textarea name=\"body\">%s</textarea><br>"+
|
|
"<input type=\"submit\" value=\"Save\">"+
|
|
"</form>",
|
|
p.Title, p.Title, p.Body)
|
|
}
|
|
|
|
func main() {
|
|
http.HandleFunc("/view/", viewHandler)
|
|
http.HandleFunc("/edit/", editHandler)
|
|
http.ListenAndServe(":8080", nil)
|
|
}
|