// SetPost sets the post with the id in the url in the context and template data.
func (m *Middleware) SetPost(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
postID, err := strconv.ParseInt(vars["postID"], 10, 64)
if err != nil {
httperror.HandleError(w, httperror.StatusError{http.StatusBadRequest, err})
return
}
pm := models.NewPostModel(m.App.DB)
topic := context.Topic(r)
post, err := pm.FindOne(nil, squirrel.Eq{"posts.id": postID, "posts.topic_id": topic.ID})
if err != nil {
httperror.HandleError(w, errors.Wrap(err, "find one error"))
return
}
context.SetPost(r, post)
templateData := context.TemplateData(r)
templateData["Post"] = post
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// MustLogin ensures the next handler is only accessible by users that are logged in.
func (m *Middleware) MustLogin(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
if _, ok := context.SessionUser(r); !ok {
httperror.HandleError(w, httperror.StatusError{http.StatusForbidden, nil})
return
}
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// MustBeAdminOrPostCreator ensures the next handler is only accessible by an admin or the post creator.
func (m *Middleware) MustBeAdminOrPostCreator(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
if !m.isPostCreator(r) && !m.isAdmin(r) {
httperror.HandleError(w, httperror.StatusError{http.StatusForbidden, nil})
return
}
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// SetTopic sets the topic with the name in the url in the context and template data.
func (m *Middleware) SetTopic(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
topicName := strings.ToLower(vars["topicName"])
tm := models.NewTopicModel(m.App.DB)
topic, err := tm.FindOne(nil, squirrel.Eq{"topics.name": topicName})
if err != nil {
httperror.HandleError(w, errors.Wrap(err, "find one error"))
return
}
context.SetTopic(r, topic)
templateData := context.TemplateData(r)
templateData["Topic"] = topic
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// ServeHTTP allows Handler to satisfy the http.Handler interface.
func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
err := h.H(h.App, w, r)
httperror.HandleError(w, err)
}