func (s *Server) serveIndex(w http.ResponseWriter, r *http.Request) {
html, err := statics.Asset("statics/topology.html")
if err != nil {
logging.GetLogger().Panic("Unable to find the topology asset")
}
t := template.New("topology template")
t, err = t.Parse(string(html))
if err != nil {
panic(err)
}
host, err := os.Hostname()
if err != nil {
panic(err)
}
var data = &struct {
Hostname string
Port int
}{
Hostname: host,
Port: s.Port,
}
w.Header().Set("Content-Type", "text/html; charset=UTF-8")
w.WriteHeader(http.StatusOK)
t.Execute(w, data)
}
func (s *Server) renderTemplate(w http.ResponseWriter, page string) {
html, err := statics.Asset("statics/" + page)
if err != nil {
logging.GetLogger().Error("Unable to find the asset " + page)
w.WriteHeader(http.StatusNotFound)
return
}
t := template.New(page)
t, err = t.Parse(string(html))
if err != nil {
panic(err)
}
w.Header().Set("Content-Type", "text/html; charset=UTF-8")
w.WriteHeader(http.StatusOK)
t.Execute(w, s.getTemplateData())
}
func serveStatics(w http.ResponseWriter, r *http.Request) {
upath := r.URL.Path
if strings.HasPrefix(upath, "/") {
upath = strings.TrimPrefix(upath, "/")
}
content, err := statics.Asset(upath)
if err != nil {
logging.GetLogger().Errorf("Unable to find the asset: %s", upath)
w.WriteHeader(http.StatusNotFound)
return
}
ext := filepath.Ext(upath)
ct := mime.TypeByExtension(ext)
w.Header().Set("Content-Type", ct+"; charset=UTF-8")
w.WriteHeader(http.StatusOK)
w.Write(content)
}