Initial server without functionality

server/server.go

@@ -0,0 +1,83 @@
+package server
+
+import (
+	"net/http"
+	"os"
+	"os/signal"
+	"path"
+	"strings"
+	"syscall"
+)
+
+type Server struct {
+	addr string
+}
+
+func New(addr string) (*Server, error) {
+	return &Server{
+		addr: addr,
+	}, nil
+}
+
+func (s *Server) Serve() error {
+	var err error
+	go func() {
+		port := s.addr
+		if !strings.HasPrefix(port, ":") {
+			port = ":" + port
+		}
+		err = http.ListenAndServe(port, s)
+	}()
+	sigc := make(chan os.Signal)
+	signal.Notify(sigc,
+		syscall.SIGHUP,
+		syscall.SIGINT,
+		syscall.SIGTERM,
+		syscall.SIGQUIT,
+	)
+	<-sigc
+	return err
+}
+
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	switch advance(r) {
+	case "api":
+		s.api(w, r)
+	default:
+		s.bad(w, r)
+	}
+}
+
+func (s *Server) bad(w http.ResponseWriter, r *http.Request) {
+	http.NotFound(w, r)
+}
+
+func (s *Server) api(w http.ResponseWriter, r *http.Request) {
+	switch advance(r) {
+	case "feed":
+		s.feed(w, r)
+	default:
+		s.bad(w, r)
+	}
+}
+
+func (s *Server) feed(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case "GET":
+	case "POST":
+	case "PUT":
+	default:
+		s.bad(w, r)
+	}
+}
+
+func advance(r *http.Request) string {
+	p := path.Clean("/" + r.URL.Path)
+	i := strings.Index(p[1:], "/") + 1
+	if i <= 0 {
+		r.URL.Path = "/"
+		return p[1:]
+	}
+	r.URL.Path = p[i:]
+	return p[1:i]
+}