91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
package main
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import (
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"github.com/gorilla/websocket"
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)
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var upgrader = websocket.Upgrader{
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CheckOrigin: func(r *http.Request) bool {
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return true // Note: In production, you'd want to check the origin.
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},
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}
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// handleWebSocket handles WebSocket requests from the peer.
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func handleWebSocket(w http.ResponseWriter, r *http.Request) {
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log.Println("Websocket connection!", r.RemoteAddr)
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println("Upgrade error:", err)
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return
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}
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defer conn.Close()
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for {
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mt, message, err := conn.ReadMessage()
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if err != nil {
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log.Println("Read error:", err)
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break
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}
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log.Printf("recv: %s", message)
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err = conn.WriteMessage(mt, message)
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if err != nil {
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log.Println("Write error:", err)
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break
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}
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}
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}
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// LoggingHandler logs requests and delegates them to the underlying handler.
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type LoggingHandler struct {
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handler http.Handler
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}
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func (lh *LoggingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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log.Printf("Serving file: %s", r.URL.Path)
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lh.handler.ServeHTTP(w, r)
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}
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// noDirListing wraps an http.FileServer handler to prevent directory listings
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func noDirListing(h http.Handler, root string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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path := filepath.Join(root, r.URL.Path)
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if info, err := os.Stat(path); err == nil && info.IsDir() {
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http.NotFound(w, r) // Always return 404 for directories
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return
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}
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h.ServeHTTP(w, r)
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}
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}
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func main() {
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dir := "./"
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port := 80
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addr := ":" + strconv.Itoa(port)
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log.Printf("Starting server on %s", addr)
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// Set up file server and WebSocket endpoint
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fs := http.FileServer(http.Dir(dir))
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// loggingHandler := &LoggingHandler{handler: fs}
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// http.Handle("/", loggingHandler)
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http.Handle("/", noDirListing(fs, dir))
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http.HandleFunc("/ws", handleWebSocket)
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// Configure and start the HTTP server
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server := &http.Server{
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Addr: addr,
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Handler: nil, // nil uses the default ServeMux, which we configured above
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}
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log.Printf("Server is configured and serving on port %d...", port)
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log.Fatal(server.ListenAndServe())
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}
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