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WSwrapper.go
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WSwrapper.go
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package WSwrapper
import (
"github.com/gorilla/websocket"
"time"
"net"
"net/url"
"net/http"
"io"
)
type WSconn struct{
*websocket.Conn
}
func (ws WSconn) Read(b []byte) (int, error) {
var r io.Reader
_, r, err := ws.NextReader()
if err != nil {
return 0, err
}
return r.Read(b)
}
func (ws WSconn) Write(b []byte) (int, error) {
w, err := ws.NextWriter(websocket.TextMessage)
if err != nil {
return 0, err
}
return w.Write(b)
}
func (ws WSconn) SetDeadline(t time.Time) (error) {
return nil
}
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
}
type Dialer struct {}
func (d *Dialer) Dial(network, address string) (net.Conn, error){
u := url.URL{Scheme: "ws", Host: address, Path: "/"}
conn, _, err := websocket.DefaultDialer.Dial(u.String(), nil)
return WSconn{conn}, err
}
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
}
func Serve(ln net.Listener, address string, handler func(net.Conn) ) {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
println(err)
panic(err.Error())
}
handler(WSconn{conn})
})
server := &http.Server{Addr: address}
e := server.Serve(tcpKeepAliveListener{ln.(*net.TCPListener)})
if e != nil {
panic(e)
}
}