Support more popular browser fingerprints with utls v1.1.3.

`fingerprint` option now supports `Edge`, `Safari`, `360Browser`, and
`QQBrowser`, in addition to the existing `Chrome`, `Firefox`, and
`iOS` options.

Thanks to uTLS developers @hwh33 and @gaukas.

go.mod

@@ -4,7 +4,7 @@ go 1.17
 
 require (
 	github.com/go-sql-driver/mysql v1.6.0
-	github.com/refraction-networking/utls v1.1.2
+	github.com/refraction-networking/utls v1.1.3
 	github.com/shadowsocks/go-shadowsocks2 v0.1.5
 	github.com/smartystreets/goconvey v1.6.4
 	github.com/stretchr/testify v1.7.0

go.sum

@@ -83,6 +83,8 @@ github.com/refraction-networking/utls v0.0.0-20210713165636-0b2885c8c0d4 h1:n9NM
 github.com/refraction-networking/utls v0.0.0-20210713165636-0b2885c8c0d4/go.mod h1:tz9gX959MEFfFN5whTIocCLUG57WiILqtdVxI8c6Wj0=
 github.com/refraction-networking/utls v1.1.2 h1:a7GQauRt72VG+wtNm0lnrAaCGlyX47gEi1++dSsDBpw=
 github.com/refraction-networking/utls v1.1.2/go.mod h1:+D89TUtA8+NKVFj1IXWr0p3tSdX1+SqUB7rL0QnGqyg=
+github.com/refraction-networking/utls v1.1.3 h1:K9opY+iKxcGvHOBG2019wFEVtsNFh0f5WqHyc2i3iU0=
+github.com/refraction-networking/utls v1.1.3/go.mod h1:+D89TUtA8+NKVFj1IXWr0p3tSdX1+SqUB7rL0QnGqyg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr8meMVVGxhp+QBTqY91tM8HjEuMjGg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=

tunnel/tls/client.go

@@ -69,16 +69,26 @@ func NewClient(ctx context.Context, underlay tunnel.Client) (*Client, error) {
 	cfg := config.FromContext(ctx, Name).(*Config)
 
 	helloID := tls.ClientHelloID{}
+	// keep the parameter name consistent with upstream
+	// https://github.com/refraction-networking/utls/blob/35e5b05fc4b6f8c4351d755f2570bc293f30aaf6/u_common.go#L114-L132
 	if cfg.TLS.Fingerprint != "" {
 		switch strings.ToLower(cfg.TLS.Fingerprint) {
-		case "firefox":
-			helloID = tls.HelloFirefox_Auto
 		case "chrome":
 			helloID = tls.HelloChrome_Auto
 		case "ios":
 			helloID = tls.HelloIOS_Auto
+		case "firefox":
+			helloID = tls.HelloFirefox_Auto
+		case "edge":
+			helloID = tls.HelloEdge_Auto
+		case "safari":
+			helloID = tls.HelloSafari_Auto
+		case "360browser":
+			helloID = tls.Hello360_Auto
+		case "qqbrowser":
+			helloID = tls.HelloQQ_Auto
 		default:
-			return nil, common.NewError("Invalid 'fingerprint' value in configuration: '" + cfg.TLS.Fingerprint + "'. Possible values are 'firefox', 'ios', or 'chrome' (default).")
+			return nil, common.NewError("Invalid 'fingerprint' value in configuration: '" + cfg.TLS.Fingerprint + "'. Possible values are 'chrome' (default), 'ios', 'firefox', 'edge', 'safari', '360browser', or 'qqbrowser'.")
 		}
 		log.Info("Your trojan's TLS fingerprint will look like", cfg.TLS.Fingerprint)
 	} else {