diff options
Diffstat (limited to 'doc/codelab/wiki/final-noclosure.go')
| -rw-r--r-- | doc/codelab/wiki/final-noclosure.go | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/doc/codelab/wiki/final-noclosure.go b/doc/codelab/wiki/final-noclosure.go deleted file mode 100644 index d09a0d7ab..000000000 --- a/doc/codelab/wiki/final-noclosure.go +++ /dev/null @@ -1,100 +0,0 @@ -package main - -import ( - "http" - "io/ioutil" - "os" - "regexp" - "template" -) - -type Page struct { - Title string - Body []byte -} - -func (p *Page) save() os.Error { - filename := p.Title + ".txt" - return ioutil.WriteFile(filename, p.Body, 0600) -} - -func loadPage(title string) (*Page, os.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.String(), http.StatusInternalServerError) - return - } - http.Redirect(w, r, "/view/"+title, http.StatusFound) -} - -func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) { - t, err := template.ParseFile(tmpl+".html", nil) - if err != nil { - http.Error(w, err.String(), http.StatusInternalServerError) - return - } - err = t.Execute(w, p) - if err != nil { - http.Error(w, err.String(), http.StatusInternalServerError) - } -} - -const lenPath = len("/view/") - -var titleValidator = regexp.MustCompile("^[a-zA-Z0-9]+$") - -func getTitle(w http.ResponseWriter, r *http.Request) (title string, err os.Error) { - title = r.URL.Path[lenPath:] - if !titleValidator.MatchString(title) { - http.NotFound(w, r) - err = os.NewError("Invalid Page Title") - } - return -} - -func main() { - http.HandleFunc("/view/", viewHandler) - http.HandleFunc("/edit/", editHandler) - http.HandleFunc("/save/", saveHandler) - http.ListenAndServe(":8080", nil) -} |
