simple websocket functionality

go.mod

@@ -1,3 +1,12 @@
 module gitea.puchstein.bayern/mpuchstein/owlygamesserver
 
 go 1.14
+
+require (
+	github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee // indirect
+	github.com/gobwas/pool v0.2.0 // indirect
+	github.com/gobwas/ws v1.0.3
+	github.com/gorilla/websocket v1.4.2
+	github.com/yhat/ws v0.0.0-20150108175532-4c48c57eb28f // indirect
+	golang.org/x/net v0.0.0-20200602114024-627f9648deb9 // indirect
+)

go.sum

@@ -0,0 +1,14 @@
+github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee h1:s+21KNqlpePfkah2I+gwHF8xmJWRjooY+5248k6m4A0=
+github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
+github.com/gobwas/pool v0.2.0 h1:QEmUOlnSjWtnpRGHF3SauEiOsy82Cup83Vf2LcMlnc8=
+github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
+github.com/gobwas/ws v1.0.3 h1:ZOigqf7iBxkA4jdQ3am7ATzdlOFp9YzA6NmuvEEZc9g=
+github.com/gobwas/ws v1.0.3/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
+github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
+github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/yhat/ws v0.0.0-20150108175532-4c48c57eb28f/go.mod h1:0t7HIZhpaP/VqQeXLXGWdii2noK4WzOphhtNHX5hARY=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20200602114024-627f9648deb9/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

owlygamesserver.go

@@ -1,7 +1,40 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+
+	"net"
+
+	"log"
+
+	"github.com/gobwas/ws"
+)
 
 func main() {
 	fmt.Println("Hello, world.")
+	websocket()
+}
+
+func websocket() {
+	ln, err := net.Listen("tcp", "localhost:8080")
+	if err != nil {
+		log.Fatal(err)
+	}
+	u := ws.Upgrader{
+		OnHeader: func(key, value []byte) (err error) {
+			log.Printf("non-websocket header: %q=%q", key, value)
+			return
+		},
+	}
+	for {
+		conn, err := ln.Accept()
+		if err != nil {
+			// handle error
+		}
+
+		_, err = u.Upgrade(conn)
+		if err != nil {
+			// handle error
+		}
+	}
 }