Add obfs-local and v2ray-plugin support for shadowsocks outbound

transport/sip003/v2ray.go

@@ -0,0 +1,80 @@
+package sip003
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/tls"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/transport/v2ray"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func init() {
+	RegisterPlugin("v2ray-plugin", newV2RayPlugin)
+}
+
+func newV2RayPlugin(pluginOpts Args, router adapter.Router, dialer N.Dialer, serverAddr M.Socksaddr) (Plugin, error) {
+	var tlsOptions option.OutboundTLSOptions
+	if _, loaded := pluginOpts.Get("tls"); loaded {
+		tlsOptions.Enabled = true
+	}
+	if certPath, certLoaded := pluginOpts.Get("cert"); certLoaded {
+		tlsOptions.CertificatePath = certPath
+	}
+	if certRaw, certLoaded := pluginOpts.Get("certRaw"); certLoaded {
+		certHead := "-----BEGIN CERTIFICATE-----"
+		certTail := "-----END CERTIFICATE-----"
+		fixedCert := certHead + "\n" + certRaw + "\n" + certTail
+		tlsOptions.Certificate = fixedCert
+	}
+
+	mode := "websocket"
+	if modeOpt, loaded := pluginOpts.Get("mode"); loaded {
+		mode = modeOpt
+	}
+
+	host := "cloudfront.com"
+	path := "/"
+
+	if hostOpt, loaded := pluginOpts.Get("host"); loaded {
+		host = hostOpt
+	}
+	if pathOpt, loaded := pluginOpts.Get("path"); loaded {
+		path = pathOpt
+	}
+
+	var tlsClient tls.Config
+	var err error
+	if tlsOptions.Enabled {
+		tlsClient, err = tls.NewClient(router, serverAddr.AddrString(), tlsOptions)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	var transportOptions option.V2RayTransportOptions
+	switch mode {
+	case "websocket":
+		transportOptions = option.V2RayTransportOptions{
+			Type: C.V2RayTransportTypeWebsocket,
+			WebsocketOptions: option.V2RayWebsocketOptions{
+				Headers: map[string]string{
+					"Host": host,
+				},
+				Path: path,
+			},
+		}
+	case "quic":
+		transportOptions = option.V2RayTransportOptions{
+			Type: C.V2RayTransportTypeQUIC,
+		}
+	default:
+		return nil, E.New("v2ray-plugin: unknown mode: " + mode)
+	}
+
+	return v2ray.NewClientTransport(context.Background(), dialer, serverAddr, transportOptions, tlsClient)
+}