diff options
Diffstat (limited to 'doc/articles/wiki/final-noclosure.go')
-rw-r--r-- | doc/articles/wiki/final-noclosure.go | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/doc/articles/wiki/final-noclosure.go b/doc/articles/wiki/final-noclosure.go deleted file mode 100644 index d894e7d319..0000000000 --- a/doc/articles/wiki/final-noclosure.go +++ /dev/null @@ -1,105 +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. - -// +build ignore - -package main - -import ( - "errors" - "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, err := getTitle(w, r) - if err != nil { - return - } - 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, err := getTitle(w, r) - if err != nil { - return - } - p, err := loadPage(title) - if err != nil { - p = &Page{Title: title} - } - renderTemplate(w, "edit", p) -} - -func saveHandler(w http.ResponseWriter, r *http.Request) { - title, err := getTitle(w, r) - if err != nil { - return - } - 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) -} - -func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) { - t, err := template.ParseFiles(tmpl + ".html") - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - err = t.Execute(w, p) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } -} - -var validPath = regexp.MustCompile("^/(edit|save|view)/([a-zA-Z0-9]+)$") - -func getTitle(w http.ResponseWriter, r *http.Request) (string, error) { - m := validPath.FindStringSubmatch(r.URL.Path) - if m == nil { - http.NotFound(w, r) - return "", errors.New("invalid Page Title") - } - return m[2], nil // The title is the second subexpression. -} - -func main() { - http.HandleFunc("/view/", viewHandler) - http.HandleFunc("/edit/", editHandler) - http.HandleFunc("/save/", saveHandler) - log.Fatal(http.ListenAndServe(":8080", nil)) -} |