//DispatchJSON returns the json view of a namespace
func DispatchJSON(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
// get namespace
namespace := mux.Vars(r)["namespace"]
if namespace == "" {
w.WriteHeader(http.StatusInternalServerError)
return
}
is, _, err := data.GetNewestItems(con, namespace, 1, "")
if err != nil {
con.Log.Errorf("Error while getting 1 item for update/json. Error %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
var returnee jsonReturn
if len(is) == 0 {
returnee.LastUpdate = time.Date(1970, time.January, 1, 0, 0, 0, 0, time.UTC).Unix()
} else {
returnee.LastUpdate = is[0].CreatedAt.Unix()
}
s, err := json.Marshal(returnee)
if err != nil {
con.Log.Errorf("Error at mashaling in update/json. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
con.Log.Infof("returning: %v", returnee)
w.Write(s)
}
// DispatchAddToIndex creates the search index for an item passed vie POST
// Used in a Queue.
func DispatchAddToIndex(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
if err := r.ParseForm(); err != nil {
con.Log.Errorf("Error at in DispatchAddToIndex @ ParseForm. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
namespace := r.Form["Namespace"][0]
URL := r.Form["URL"][0]
si, err := createSearchItem(con, r.Form, namespace, URL)
if err != nil {
con.Log.Errorf("Error while creating data.Search.Item from URL parameters.")
w.WriteHeader(http.StatusInternalServerError)
return
}
err = search.AddToSearchIndexTask(con, si, namespace, URL)
if err != nil {
con.Log.Errorf("Error while adding the Item to the seach index %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
}
// DispatchJSON receives an extension json request
func DispatchJSON(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
// get namespace
namespace := mux.Vars(r)["namespace"]
if namespace == "" {
startpage.Dispatch(w, r)
return
}
shareURL := r.URL.Query().Get("url")
if err := share.URL(shareURL, namespace, con); err != nil {
con.Log.Errorf("Error while sharing an URL. URL: %v. Error: %v", shareURL, err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.Write(statusOk)
}
// DispatchEmail handles incoming emails
func DispatchEmail(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
em, err := emailparse.Get(con, r.Body)
if err != nil {
con.Log.Errorf("Error at parsing email. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
if len(em.Images) > 0 {
err2 := handleImages(con, em)
if err2 != nil {
con.Log.Errorf("%v", err2)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
return
}
if len(em.Texts) > 0 {
err2 := handleText(con, em)
if err2 != nil {
con.Log.Errorf("%v", err2)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
return
}
con.Log.Errorf("Found no images and no URLs?.")
w.WriteHeader(http.StatusInternalServerError)
}
// DispatchJSON is called when a json request with an url is posted
func DispatchJSON(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
// get namespace
namespace := mux.Vars(r)["namespace"]
if namespace == "" {
startpage.Dispatch(w, r)
return
}
empty, err := data.NamespaceIsEmpty(con, namespace)
if err == nil {
if empty {
w.Write(statusOk)
} else {
w.Write(statusInUse)
}
} else {
w.Write(statusError)
}
}
//DispatchJSON returns the json view of a namespace
func DispatchJSON(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
// get namespace
namespace := mux.Vars(r)["namespace"]
if namespace == "" {
w.WriteHeader(http.StatusInternalServerError)
return
}
if err := r.ParseForm(); err != nil {
con.Log.Errorf("Error at in /show/json @ ParseForm. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
cursor := r.FormValue("cursor")
// no cursos == first elements, may be in the cache
if cursor == "" {
cache, err := data.ReadJSONCache(con, namespace)
if err == nil {
w.Write(cache)
return
}
if err == memcache.ErrCacheMiss {
con.Log.Infof("Cache miss for namespace %v", namespace)
} else {
con.Log.Errorf("Error at in rss.dispatch while reading the cache. Error: %v", err)
}
}
var returnee jsonReturn
var err error
returnee.Items, returnee.Cursor, err = data.GetNewestItems(con, namespace, 20, cursor)
if err != nil {
con.Log.Errorf("Error at in /show/json @ GetNewestItem. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
con.Log.Infof("items: %v", returnee.Items)
con.Log.Infof("cursor: %v", returnee.Cursor)
s, err := json.Marshal(returnee)
if err != nil {
con.Log.Errorf("Error at mashaling in www.json.dispatch. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
// only store values in cache for the first entries
if cursor == "" {
if err := data.CacheJSON(con, namespace, s); err != nil {
con.Log.Errorf("Error at storing the JSON in the cache. Error: %v", err)
}
}
w.Write(s)
}
//DispatchRSS returns the rss feed of namespace
func DispatchRSS(w http.ResponseWriter, r *http.Request) {
con := data.MakeContext(r)
w.Header().Set("Content-Type", "application/rss+xml")
w.Header().Set("Cache-Control", "public, max-age=1800") // 30 minutes
w.Header().Set("Pragma", "Public")
// get namespace
namespace := mux.Vars(r)["namespace"]
if namespace == "" {
w.WriteHeader(http.StatusInternalServerError)
return
}
cache, err := data.ReadRSSCache(con, namespace)
if err == nil {
w.Write([]byte(cache))
return
}
if err == memcache.ErrCacheMiss {
con.Log.Infof("Cache miss for namespace %v", namespace)
} else {
con.Log.Errorf("Error at in rss.dispatch while reading the cache. Error: %v", err)
}
t := time.Now()
t = t.Add(-24 * time.Hour * config.RSSTimeRangeinDays)
is, _, err := data.GetNewestItemsByTime(con, namespace, 100, t, "")
if err != nil {
con.Log.Errorf("Error at in rss.dispatch @ GetNewestItem. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
con.Log.Infof("items: %v", is)
feed := &feeds.Feed{
Title: namespace + " - Kaffeeshare",
Link: &feeds.Link{Href: r.URL.String()},
}
for _, i := range is {
rssI := feeds.Item{
Title: i.Caption,
Link: &feeds.Link{Href: i.URL},
Created: i.CreatedAt,
}
if i.ImageURL != "" {
rssI.Description += "<div style=\"float:left; margin-right:16px; margin-bottom:16px;\"><img width=\"200\" src=\"" + i.ImageURL + "\" alt=\"\"/></div>"
}
rssI.Description += "<p>" + i.Description + "</p><br/><br/>"
rssI.Description += "<a href=\"" + i.URL + "\">» " + i.URL + "</a>"
feed.Items = append(feed.Items, &rssI)
}
s, err := feed.ToRss()
if err != nil {
con.Log.Errorf("Error at mashaling in www.dispatch. Error: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
if err := data.CacheRSS(con, namespace, s); err != nil {
con.Log.Errorf("Error at storing the RSS Feed in the cache. Error: %v", err)
}
w.Write([]byte(s))
}