chore: make wireguard work over webrtc

browser/server/server.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"context"
+	"encoding/hex"
+	"flag"
+	"fmt"
+	"github.com/wiretrustee/wiretrustee/browser/conn"
+	"github.com/wiretrustee/wiretrustee/signal/client"
+	"golang.zx2c4.com/wireguard/device"
+	"golang.zx2c4.com/wireguard/tun/netstack"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"io"
+	"log"
+	"net"
+	"net/http"
+	"time"
+)
+
+//my private key qJi7zSrgdokeoXE27fbca2hvMlgg1NQIW6KbrTJhhmc=
+//remote private key KLuBc6tM/NRV1071bfPiNUxZmMhGBCXfxoDg+A+J7ns=
+func main() {
+
+	keyFlag := flag.String("key", "", "a Wireguard private key")
+	remoteKeyFlag := flag.String("remote-key", "", "a Wireguard remote peer public key")
+	signalEndpoint := flag.String("signal-endpoint", "ws://apitest.wiretrustee.com:80/signal", "a Signal service Websocket endpoint")
+
+	flag.Parse()
+
+	key, err := wgtypes.ParseKey(*keyFlag)
+	if err != nil {
+		panic(err)
+	}
+
+	log.Printf("my public key: %s", key.PublicKey().String())
+
+	remoteKey, err := wgtypes.ParseKey(*remoteKeyFlag)
+
+	if err != nil {
+		panic(err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+
+	time.Sleep(5 * time.Second)
+
+	signal, err := client.NewWebsocketClient(ctx, *signalEndpoint, key)
+
+	tun, tnet, err := netstack.CreateNetTUN(
+		[]net.IP{net.ParseIP("10.100.0.2")},
+		[]net.IP{net.ParseIP("8.8.8.8")},
+		1420)
+
+	b := conn.NewWebRTCBind("chann-1", signal, key.PublicKey().String(), remoteKey.String())
+	dev := device.NewDevice(tun, b, device.NewLogger(device.LogLevelVerbose, ""))
+	err = dev.IpcSet(fmt.Sprintf("private_key=%s\npublic_key=%s\npersistent_keepalive_interval=10\nendpoint=webrtc://datachannel\nallowed_ip=0.0.0.0/0",
+		hex.EncodeToString(key[:]),
+		hex.EncodeToString(remoteKey[:]),
+	))
+
+	dev.Up()
+
+	if err != nil {
+		panic(err)
+	}
+
+	listener, err := tnet.ListenTCP(&net.TCPAddr{Port: 80})
+	if err != nil {
+		log.Panicln(err)
+	}
+	http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
+		log.Printf("> %s - %s - %s", request.RemoteAddr, request.URL.String(), request.UserAgent())
+		io.WriteString(writer, "Hello from userspace TCP!")
+	})
+	err = http.Serve(listener, nil)
+	if err != nil {
+		log.Panicln(err)
+	}
+
+	select {}
+
+}