diff options
Diffstat (limited to 'go/golang/go/doc/articles/wiki/final.go')
-rw-r--r-- | go/golang/go/doc/articles/wiki/final.go | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/go/golang/go/doc/articles/wiki/final.go b/go/golang/go/doc/articles/wiki/final.go deleted file mode 100644 index 0f6646ba..00000000 --- a/go/golang/go/doc/articles/wiki/final.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package main - -import ( - "html/template" - "io/ioutil" - "log" - "net/http" - "regexp" -) - -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 -} - -func viewHandler(w http.ResponseWriter, r *http.Request, title string) { - p, err := loadPage(title) - if err != nil { - http.Redirect(w, r, "/edit/"+title, http.StatusFound) - return - } - renderTemplate(w, "view", p) -} - -func editHandler(w http.ResponseWriter, r *http.Request, title string) { - p, err := loadPage(title) - if err != nil { - p = &Page{Title: title} - } - renderTemplate(w, "edit", p) -} - -func saveHandler(w http.ResponseWriter, r *http.Request, title string) { - body := r.FormValue("body") - p := &Page{Title: title, Body: []byte(body)} - err := p.save() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - http.Redirect(w, r, "/view/"+title, http.StatusFound) -} - -var templates = template.Must(template.ParseFiles("edit.html", "view.html")) - -func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) { - err := templates.ExecuteTemplate(w, tmpl+".html", p) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } -} - -var validPath = regexp.MustCompile("^/(edit|save|view)/([a-zA-Z0-9]+)$") - -func makeHandler(fn func(http.ResponseWriter, *http.Request, string)) http.HandlerFunc { - return func(w http.ResponseWriter, r *http.Request) { - m := validPath.FindStringSubmatch(r.URL.Path) - if m == nil { - http.NotFound(w, r) - return - } - fn(w, r, m[2]) - } -} - -func main() { - http.HandleFunc("/view/", makeHandler(viewHandler)) - http.HandleFunc("/edit/", makeHandler(editHandler)) - http.HandleFunc("/save/", makeHandler(saveHandler)) - - log.Fatal(http.ListenAndServe(":8080", nil)) -} |