Merge 57d51e3f62eed7c26ac51ab768437e040d7f211d into e680acf42df7718720dbe5181180681037cd02e1

Release.md

@@ -5,3 +5,4 @@
 ### Changes
 
 * Updated the default value of `transport.tcpMuxKeepaliveInterval` from 60 to 30.
+* On the Android platform, the Google DNS server is used only when the default DNS server cannot be obtained.

pkg/config/v1/plugin.go

@@ -17,6 +17,7 @@ package v1
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"reflect"
 )
@@ -42,7 +43,7 @@ func (c *TypedClientPluginOptions) UnmarshalJSON(b []byte) error {
 
 	c.Type = typeStruct.Type
 	if c.Type == "" {
-		return nil
+		return errors.New("plugin type is empty")
 	}
 
 	v, ok := clientPluginOptionsTypeMap[typeStruct.Type]
@@ -63,6 +64,10 @@ func (c *TypedClientPluginOptions) UnmarshalJSON(b []byte) error {
 	return nil
 }
 
+func (c *TypedClientPluginOptions) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.ClientPluginOptions)
+}
+
 const (
 	PluginHTTP2HTTPS       = "http2https"
 	PluginHTTPProxy        = "http_proxy"

pkg/config/v1/proxy.go

@@ -195,6 +195,10 @@ func (c *TypedProxyConfig) UnmarshalJSON(b []byte) error {
 	return nil
 }
 
+func (c *TypedProxyConfig) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.ProxyConfigurer)
+}
+
 type ProxyConfigurer interface {
 	Complete(namePrefix string)
 	GetBaseConfig() *ProxyBaseConfig

pkg/config/v1/visitor.go

@@ -120,6 +120,10 @@ func (c *TypedVisitorConfig) UnmarshalJSON(b []byte) error {
 	return nil
 }
 
+func (c *TypedVisitorConfig) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.VisitorConfigurer)
+}
+
 func NewVisitorConfigurerByType(t VisitorType) VisitorConfigurer {
 	v, ok := visitorConfigTypeMap[t]
 	if !ok {

pkg/util/system/system_android.go

@@ -59,8 +59,12 @@ func fixDNSResolver() {
 	// Note: If there are other methods to obtain the default DNS servers, the default DNS servers should be used preferentially.
 	net.DefaultResolver = &net.Resolver{
 		PreferGo: true,
-		Dial: func(ctx context.Context, network, _ string) (net.Conn, error) {
+		Dial: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			return net.Dial(network, "8.8.8.8:53")
+			if addr == "127.0.0.1:53" || addr == "[::1]:53" {
+				addr = "8.8.8.8:53"
+			}
+			var d net.Dialer
+			return d.DialContext(ctx, network, addr)
 		},
 	}
 }