func GetData(req *http.Request) map[string]interface{} {
if rv := context.Get(req, datakey); rv != nil {
// 获取之后立马删除
context.Delete(req, datakey)
return rv.(map[string]interface{})
}
return make(map[string]interface{})
}
func getData(req *http.Request, viewkey viewKey) interface{} {
if rv := context.Get(req, viewkey); rv != nil {
// 获取之后立马删除
context.Delete(req, viewkey)
return rv
}
return nil
}
func (p *renderSetupHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
renderEngine := render.New(render.Options{
IndentJSON: (r.Form.Get("pretty") == "true"),
})
context.Set(r, renderContextKey, renderEngine)
defer context.Delete(r, renderContextKey)
p.next.ServeHTTP(w, r)
}
// CsrfMiddleware adds CSRF support via nosurf.
func CsrfMiddleware(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
var token string
var passed bool
// nosurf disposes of the token as soon as it calls the http.Handler you provide...
// in order to use it as negroni middleware, pull out token and dispose of it ourselves
csrfHandler := nosurf.NewPure(http.HandlerFunc(func(http.ResponseWriter, *http.Request) {
token = nosurf.Token(r)
passed = true
}))
csrfHandler.ServeHTTP(w, r)
// csrf passed
if passed {
context.Set(r, "csrf_token", token)
next(w, r)
context.Delete(r, "csrf_token")
}
}
func (this *CookieFilter) PostFilter(rw http.ResponseWriter, req *http.Request) bool {
// 删除设置的用户信息
context.Delete(req, userkey)
return true
}
func (cua *CurrentUserAccessor) Clear(r *http.Request) {
context.Delete(r, cua.key)
}