diff options
Diffstat (limited to 'doc/codelab/wiki/notemplate.go')
-rw-r--r-- | doc/codelab/wiki/notemplate.go | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/doc/codelab/wiki/notemplate.go b/doc/codelab/wiki/notemplate.go new file mode 100644 index 000000000..9cbe9ad76 --- /dev/null +++ b/doc/codelab/wiki/notemplate.go @@ -0,0 +1,55 @@ +package main + +import ( + "fmt" + "http" + "io/ioutil" + "os" +) + +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 +} + +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) +} |