func newVisitor(req *http.Request) (*http.Cookie, error) {
m := initialModel()
id, err := uuid.NewV4()
if err != nil {
log.Println("ERROR newVisitor uuid.NewV4", err)
return nil, err
}
return makeCookie(m, id.String(), req)
}
func logout(res http.ResponseWriter, req *http.Request) {
cookie, err := newVisitor(req)
if err != nil {
log.Println("ERROR logout getCookie", err)
http.Error(res, err.Error(), http.StatusInternalServerError)
return
}
http.SetCookie(res, cookie)
http.Redirect(res, req, "/", http.StatusSeeOther)
}
func index(res http.ResponseWriter, req *http.Request) {
//ctx := appengine.NewContext(req)//from 049
var id string
cookie, err := getCookie(res, req)
if err != nil {
// problem retrieving cookie
log.Println("ERROR index getCookie", err)
//http.Error(res, err.Error(), http.StatusInternalServerError) //comment out?
return
}
id = cookie.Value
_, err = req.Cookie("session-id")
if err != nil {
id = req.FormValue("User")
}
if req.Method == "POST" {
src, _, err := req.FormFile("data")
if err != nil {
log.Println("ERROR index req.FormFile", err)
// TODO: create error page to show user
http.Redirect(res, req, "/", http.StatusSeeOther)
return
}
err = uploadPhoto(src, id, req)
if err != nil {
log.Println("ERROR index uploadPhoto", err)
// expired cookie may exist on client
http.Redirect(res, req, "/logout", http.StatusSeeOther)
return
}
}
m, err := retrieveMemc(id, req)
if err != nil {
log.Println("ERROR index retrieveMemc", err)
// expired cookie may exist on client
http.Redirect(res, req, "/logout", http.StatusSeeOther)
return
}
tpl.ExecuteTemplate(res, "index.html", m)
}
func login(res http.ResponseWriter, req *http.Request) {
cookie, err := getCookie(res, req)
if err != nil {
log.Println("ERROR login getCookie", err)
http.Error(res, err.Error(), http.StatusInternalServerError)
return
}
id := cookie.Value
if req.Method == "POST" && req.FormValue("password") == "secret" {
m, err := retrieveMemc(id, req)
if err != nil {
log.Println("ERROR index retrieveMemc", err)
// expired cookie may exist on client
http.Redirect(res, req, "/logout", http.StatusSeeOther)
return
}
m.State = true
m.Name = req.FormValue("name")
cookie, err := currentVisitor(m, id, req)
if err != nil {
log.Println("ERROR login currentVisitor", err)
http.Redirect(res, req, "/", http.StatusSeeOther)
return
}
http.SetCookie(res, cookie)
//http.Redirect(res, req, "/", http.StatusSeeOther)
http.Redirect(res, req, "/?User="******"login.html", nil)
}