// renderTemplate renders the named template and returns the rendered HTML to
// the client.
func renderTemplate(w http.ResponseWriter, name string, data interface{}) {
w.Header().Set("Content-Type", "text/html; charset=utf8")
err := mpresources.GetTemplates().ExecuteTemplate(w, name, data)
if err != nil {
serverError(w, err)
}
}
// httpError sends an HTTP error code to the client followed by an HTML error
// page explaining the error.
func httpError(w http.ResponseWriter, h *HTTPError) {
w.Header().Set("Content-Type", "text/html; charset=utf8")
w.WriteHeader(h.Status)
err := mpresources.GetTemplates().ExecuteTemplate(w, "error.html", h)
if err != nil {
log.Printf("Internal error when rendering error.html: %s\n", err.Error())
}
}
func main() {
flag.Parse()
source := *dbSource
if source == "" {
source = os.Getenv("MPDBSOURCE")
if source == "" {
fmt.Println("Please specify a non-empty -dbsource flag or set the MPDBSOURCE environment variable.")
os.Exit(1)
}
}
resDir := *resourceDir
if resDir == "" {
resDir = os.Getenv("MPRESDIR")
}
mpdb.DBSource = source
mpresources.SetResourceDir(resDir)
mpresources.GetTemplates() // Check that the templates load correctly
err := mpdb.InitDB(*debug, *testdata)
if err != nil {
log.Printf("Database error during startup: %s\n", err)
os.Exit(1)
}
listenAddr := fmt.Sprintf("%s:%d", *host, *port)
m := mphandlers.CreateMux()
app := http.Handler(m)
if *debug {
app = mphandlers.LoggingHandler{Handler: app}
log.Printf("Listening on %s\n", listenAddr)
}
err = http.ListenAndServe(listenAddr, app)
if err != nil {
log.Printf("Server error in HTTP listener: %s\n", err)
os.Exit(1)
}
}