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tailscale/derp/derphttp/websocket.go

34 lines
722 B
Go

// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux || js
// +build linux js
package derphttp
import (
"context"
"log"
"net"
"nhooyr.io/websocket"
"tailscale.com/net/wsconn"
)
func init() {
dialWebsocketFunc = dialWebsocket
}
func dialWebsocket(ctx context.Context, urlStr string) (net.Conn, error) {
c, res, err := websocket.Dial(ctx, urlStr, &websocket.DialOptions{
Subprotocols: []string{"derp"},
})
if err != nil {
log.Printf("websocket Dial: %v, %+v", err, res)
return nil, err
}
log.Printf("websocket: connected to %v", urlStr)
return wsconn.New(c), nil
}