Added support for PROXYLESS env var

Author: myleshorton

common/lanternconfig.go

@@ -15,11 +15,18 @@ const (
 
 	// TrackingID is the Google Analytics tracking ID.
 	TrackingID = "UA-21815217-12"
+
+	PROXYLESS = "proxyless"
 )
 
 var transports = loadTransports()
+var proxyless = true
 
 func loadTransports() []string {
+	proxylessEnv := os.Getenv("PROXYLESS")
+	if proxylessEnv == "false" {
+		proxyless = false
+	}
 	env := os.Getenv("LANTERN_TRANSPORTS")
 	if env == "" {
 		return []string{}
@@ -35,5 +42,9 @@ func loadTransports() []string {
 // specified transport is supported. If there is no LANTERN_TRANSPORTS environment variable defined,
 // all transports are supported.
 func SupportsTransport(transport string) bool {
-	return len(transports) == 0 || slices.Contains(transports, transport)
+	return slices.Contains(transports, transport) || len(transports) == 0
+}
+
+func SupportsProxyless() bool {
+	return proxyless
 }

dialer/parallel_dialer.go

@@ -23,7 +23,7 @@ func newParallelPreferProxyless(proxyless proxyless, d Dialer, opts *Options) Di
 }
 
 func (d *parallelDialer) DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
-	if !common.SupportsTransport("proxyless") {
+	if !common.SupportsProxyless() {
 		log.Debugf("Proxyless transport not supported, falling back to default dialer for %s", addr)
 		// If the proxyless transport is not supported, we fall back to the default dialer.
 		return d.dialer.DialContext(ctx, network, addr)