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|
// Package server.
package server
import (
"fmt"
"net"
"net/http"
"github.com/abbot/go-http-auth"
"github.com/gen2brain/cam2ip/handlers"
"github.com/gen2brain/cam2ip/reader"
)
// Server struct.
type Server struct {
Name string
Version string
Bind string
Htpasswd string
Index int
Delay int
FrameWidth float64
FrameHeight float64
Rotate int
NoWebGL bool
Timestamp bool
FileName string
Reader reader.ImageReader
}
// NewServer returns new Server.
func NewServer() *Server {
s := &Server{}
return s
}
// ListenAndServe listens on the TCP address and serves requests.
func (s *Server) ListenAndServe() error {
var basic *auth.BasicAuth
if s.Htpasswd != "" {
realm := fmt.Sprintf("%s/%s", s.Name, s.Version)
basic = auth.NewBasicAuthenticator(realm, auth.HtpasswdFileProvider(s.Htpasswd))
}
http.Handle("/html", newAuthHandler(handlers.NewHTML(s.FrameWidth, s.FrameHeight, s.NoWebGL), basic))
http.Handle("/jpeg", newAuthHandler(handlers.NewJPEG(s.Reader), basic))
http.Handle("/mjpeg", newAuthHandler(handlers.NewMJPEG(s.Reader, s.Delay), basic))
http.Handle("/socket", newAuthHandler(handlers.NewSocket(s.Reader, s.Delay), basic))
http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
})
http.Handle("/", newAuthHandler(handlers.NewIndex(), basic))
srv := &http.Server{}
listener, err := net.Listen("tcp4", s.Bind)
if err != nil {
return err
}
return srv.Serve(listener)
}
// newAuthHandler wraps handler and checks auth.
func newAuthHandler(handler http.Handler, authenticator *auth.BasicAuth) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if authenticator != nil {
w.Header().Set("WWW-Authenticate", fmt.Sprintf("Basic realm=\"%s\"", authenticator.Realm))
if authenticator.CheckAuth(r) == "" {
http.Error(w, "401 Unauthorized", http.StatusUnauthorized)
return
}
}
handler.ServeHTTP(w, r)
})
}
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