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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "crypto/tls" | ||
| "log" | ||
| "net" | ||
| "net/http" | ||
| "net/url" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| type Server struct { | ||
| Handler http.Handler | ||
| Opts *Options | ||
| } | ||
|
|
||
| func (s *Server) ListenAndServe() { | ||
| if s.Opts.TLSKeyFile != "" || s.Opts.TLSCertFile != "" { | ||
| s.ServeHTTPS() | ||
| } else { | ||
| s.ServeHTTP() | ||
| } | ||
| } | ||
|
|
||
| func (s *Server) ServeHTTP() { | ||
| u, err := url.Parse(s.Opts.HttpAddress) | ||
| if err != nil { | ||
| log.Fatalf("FATAL: could not parse %#v: %v", s.Opts.HttpAddress, err) | ||
| } | ||
|
|
||
| var networkType string | ||
| switch u.Scheme { | ||
| case "", "http": | ||
| networkType = "tcp" | ||
| default: | ||
| networkType = u.Scheme | ||
| } | ||
| listenAddr := strings.TrimPrefix(u.String(), u.Scheme+"://") | ||
|
|
||
| listener, err := net.Listen(networkType, listenAddr) | ||
| if err != nil { | ||
| log.Fatalf("FATAL: listen (%s, %s) failed - %s", networkType, listenAddr, err) | ||
| } | ||
| log.Printf("HTTP: listening on %s", listenAddr) | ||
|
|
||
| server := &http.Server{Handler: s.Handler} | ||
| err = server.Serve(listener) | ||
| if err != nil && !strings.Contains(err.Error(), "use of closed network connection") { | ||
| log.Printf("ERROR: http.Serve() - %s", err) | ||
| } | ||
|
|
||
| log.Printf("HTTP: closing %s", listener.Addr()) | ||
| } | ||
|
|
||
| func (s *Server) ServeHTTPS() { | ||
| addr := s.Opts.HttpsAddress | ||
| config := &tls.Config{ | ||
| MinVersion: tls.VersionTLS12, | ||
| MaxVersion: tls.VersionTLS12, | ||
| } | ||
| if config.NextProtos == nil { | ||
| config.NextProtos = []string{"http/1.1"} | ||
| } | ||
|
|
||
| var err error | ||
| config.Certificates = make([]tls.Certificate, 1) | ||
| config.Certificates[0], err = tls.LoadX509KeyPair(s.Opts.TLSCertFile, s.Opts.TLSKeyFile) | ||
| if err != nil { | ||
| log.Fatalf("FATAL: loading tls config (%s, %s) failed - %s", s.Opts.TLSCertFile, s.Opts.TLSKeyFile, err) | ||
| } | ||
|
|
||
| ln, err := net.Listen("tcp", addr) | ||
| if err != nil { | ||
| log.Fatalf("FATAL: listen (%s) failed - %s", addr, err) | ||
| } | ||
| log.Printf("HTTPS: listening on %s", ln.Addr()) | ||
|
|
||
| tlsListener := tls.NewListener(tcpKeepAliveListener{ln.(*net.TCPListener)}, config) | ||
| srv := &http.Server{Handler: s.Handler} | ||
| err = srv.Serve(tlsListener) | ||
|
|
||
| if err != nil && !strings.Contains(err.Error(), "use of closed network connection") { | ||
| log.Printf("ERROR: https.Serve() - %s", err) | ||
| } | ||
|
|
||
| log.Printf("HTTPS: closing %s", tlsListener.Addr()) | ||
| } | ||
|
|
||
| // tcpKeepAliveListener sets TCP keep-alive timeouts on accepted | ||
| // connections. It's used by ListenAndServe and ListenAndServeTLS so | ||
| // dead TCP connections (e.g. closing laptop mid-download) eventually | ||
| // go away. | ||
| type tcpKeepAliveListener struct { | ||
| *net.TCPListener | ||
| } | ||
|
|
||
| func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) { | ||
| tc, err := ln.AcceptTCP() | ||
| if err != nil { | ||
| return | ||
| } | ||
| tc.SetKeepAlive(true) | ||
| tc.SetKeepAlivePeriod(3 * time.Minute) | ||
| return tc, nil | ||
| } |
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