server.go

package main

import (
	"fmt"
	"net/http"
	"strings"
	"time"
)

// Server is a HTTP interface
type Server struct {
	Db McEngine
}

func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	path := strings.TrimPrefix(r.URL.Path, "/")
	switch r.Method {
	case http.MethodPost:

	case http.MethodGet:
		switch {
		case path == "":
			date := time.Now().UTC().Format(http.TimeFormat)
			w.Header().Set("Date", date)
			w.Header().Set("Server", "b52 "+version)
			w.Header().Set("Connection", "Closed")
			fmt.Fprint(w, "status = \"OK\"\r\n")
		case strings.HasPrefix(path, "pulse:2:"):
			s.api(path, w)
			return
		default:
			w.WriteHeader(404)
		}
	}
}

func (s *Server) api(key string, w http.ResponseWriter) {
	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	value, err := s.Db.Get([]byte(key))
	if err != nil {
		fmt.Println(err)
		w.WriteHeader(500)
		return
	}
	fmt.Fprint(w, string(value))
}