Add unix domain socket listeners for HTTP and WS

cmd/soju/main.go

@@ -275,6 +275,16 @@ func main() {
 					log.Fatalf("serving %q: %v", listen, err)
 				}
 			}()
+		case "ws+unix":
+			ln, err := net.Listen("unix", u.Path)
+			if err != nil {
+				log.Fatalf("failed to start listener on %q: %v", listen, err)
+			}
+			go func() {
+				if err := http.Serve(ln, srv); err != nil {
+					log.Fatalf("serving %q: %v", listen, err)
+				}
+			}()
 		case "ident":
 			if srv.Identd == nil {
 				srv.Identd = identd.New()
@@ -366,6 +376,16 @@ func main() {
 					log.Fatalf("serving %q: %v", listen, err)
 				}
 			}()
+		case "http+unix":
+			ln, err := net.Listen("unix", u.Path)
+			if err != nil {
+				log.Fatalf("failed to start listener on %q: %v", listen, err)
+			}
+			go func() {
+				if err := http.Serve(ln, httpMux); err != nil {
+					log.Fatalf("serving %q: %v", listen, err)
+				}
+			}()
 		default:
 			log.Fatalf("failed to listen on %q: unsupported scheme", listen)
 		}

doc/soju.1.scd

@@ -92,10 +92,14 @@ The following directives are supported:
 	  and handles WebSocket requests at endpoint _/socket_
 	- _http+insecure://[host][:port]_ listens for plain-text HTTP connections
 	  (default port: 80) and handles WebSocket requests at endpoint _/socket_
+	- _http+unix://<path>_ listens for plain-text HTTP connections on a Unix
+	  domain socket and handles WebSocket requests at endpoint _/socket_
 	- _wss://[host][:port]_ listens for WebSocket connections over TLS (default
 	  port: 443)
 	- _ws+insecure://[host][:port]_ listens for plain-text WebSocket
 	  connections (default port: 80)
+	- _ws+unix://<path>_ listens for plain-text WebSocket connections on a Unix
+	  domain socket
 	- _ident://[host][:port]_ listens for plain-text ident connections (default
 	  port: 113)
 	- _http+prometheus://localhost:<port>_ listens for plain-text HTTP