From c6c68bd4c82de621221caa2354c2a86543b91496 Mon Sep 17 00:00:00 2001
From: RPRX <63339210+RPRX@users.noreply.github.com>
Date: Wed, 30 Oct 2024 05:05:42 +0000
Subject: [PATCH 1/3] SplitHTTP client: Add upload / download splitting

---
 infra/conf/transport_internet.go          |   9 +
 transport/internet/splithttp/config.pb.go | 211 ++++++++++++----------
 transport/internet/splithttp/config.proto |   4 +
 transport/internet/splithttp/dialer.go    |  34 +++-
 4 files changed, 166 insertions(+), 92 deletions(-)

diff --git a/infra/conf/transport_internet.go b/infra/conf/transport_internet.go
index dcb640aa89d7..b4f82b505d33 100644
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -232,6 +232,8 @@ type SplitHTTPConfig struct {
 	NoSSEHeader          bool              `json:"noSSEHeader"`
 	XPaddingBytes        *Int32Range       `json:"xPaddingBytes"`
 	Xmux                 Xmux              `json:"xmux"`
+	DownloadAddrPort     string            `json:"downloadAddrPort"`
+	DownloadStreamConfig *StreamConfig     `json:"downloadStreamConfig"`
 }
 
 type Xmux struct {
@@ -288,6 +290,11 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		muxProtobuf.CMaxReuseTimes.To = 128
 	}
 
+	var downloadStreamConfig *internet.StreamConfig
+	if c.DownloadAddrPort != "" {
+		downloadStreamConfig, _ = c.DownloadStreamConfig.Build() // just panic
+	}
+
 	config := &splithttp.Config{
 		Path:                 c.Path,
 		Host:                 c.Host,
@@ -298,6 +305,8 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		NoSSEHeader:          c.NoSSEHeader,
 		XPaddingBytes:        splithttpNewRandRangeConfig(c.XPaddingBytes),
 		Xmux:                 &muxProtobuf,
+		DownloadAddrPort:     c.DownloadAddrPort,
+		DownloadStreamConfig: downloadStreamConfig,
 	}
 	return config, nil
 }
diff --git a/transport/internet/splithttp/config.pb.go b/transport/internet/splithttp/config.pb.go
index db09180d46c9..ed2318cbb0e2 100644
--- a/transport/internet/splithttp/config.pb.go
+++ b/transport/internet/splithttp/config.pb.go
@@ -7,6 +7,7 @@
 package splithttp
 
 import (
+	internet "github.com/xtls/xray-core/transport/internet"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -25,15 +26,17 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Host                 string            `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
-	Path                 string            `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
-	Header               map[string]string `protobuf:"bytes,3,rep,name=header,proto3" json:"header,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-	ScMaxConcurrentPosts *RandRangeConfig  `protobuf:"bytes,4,opt,name=scMaxConcurrentPosts,proto3" json:"scMaxConcurrentPosts,omitempty"`
-	ScMaxEachPostBytes   *RandRangeConfig  `protobuf:"bytes,5,opt,name=scMaxEachPostBytes,proto3" json:"scMaxEachPostBytes,omitempty"`
-	ScMinPostsIntervalMs *RandRangeConfig  `protobuf:"bytes,6,opt,name=scMinPostsIntervalMs,proto3" json:"scMinPostsIntervalMs,omitempty"`
-	NoSSEHeader          bool              `protobuf:"varint,7,opt,name=noSSEHeader,proto3" json:"noSSEHeader,omitempty"`
-	XPaddingBytes        *RandRangeConfig  `protobuf:"bytes,8,opt,name=xPaddingBytes,proto3" json:"xPaddingBytes,omitempty"`
-	Xmux                 *Multiplexing     `protobuf:"bytes,9,opt,name=xmux,proto3" json:"xmux,omitempty"`
+	Host                 string                 `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
+	Path                 string                 `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
+	Header               map[string]string      `protobuf:"bytes,3,rep,name=header,proto3" json:"header,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	ScMaxConcurrentPosts *RandRangeConfig       `protobuf:"bytes,4,opt,name=scMaxConcurrentPosts,proto3" json:"scMaxConcurrentPosts,omitempty"`
+	ScMaxEachPostBytes   *RandRangeConfig       `protobuf:"bytes,5,opt,name=scMaxEachPostBytes,proto3" json:"scMaxEachPostBytes,omitempty"`
+	ScMinPostsIntervalMs *RandRangeConfig       `protobuf:"bytes,6,opt,name=scMinPostsIntervalMs,proto3" json:"scMinPostsIntervalMs,omitempty"`
+	NoSSEHeader          bool                   `protobuf:"varint,7,opt,name=noSSEHeader,proto3" json:"noSSEHeader,omitempty"`
+	XPaddingBytes        *RandRangeConfig       `protobuf:"bytes,8,opt,name=xPaddingBytes,proto3" json:"xPaddingBytes,omitempty"`
+	Xmux                 *Multiplexing          `protobuf:"bytes,9,opt,name=xmux,proto3" json:"xmux,omitempty"`
+	DownloadAddrPort     string                 `protobuf:"bytes,10,opt,name=downloadAddrPort,proto3" json:"downloadAddrPort,omitempty"`
+	DownloadStreamConfig *internet.StreamConfig `protobuf:"bytes,11,opt,name=downloadStreamConfig,proto3" json:"downloadStreamConfig,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -129,6 +132,20 @@ func (x *Config) GetXmux() *Multiplexing {
 	return nil
 }
 
+func (x *Config) GetDownloadAddrPort() string {
+	if x != nil {
+		return x.DownloadAddrPort
+	}
+	return ""
+}
+
+func (x *Config) GetDownloadStreamConfig() *internet.StreamConfig {
+	if x != nil {
+		return x.DownloadStreamConfig
+	}
+	return nil
+}
+
 type RandRangeConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -258,87 +275,97 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -355,10 +382,11 @@ func file_transport_internet_splithttp_config_proto_rawDescGZIP() []byte {
 
 var file_transport_internet_splithttp_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
 var file_transport_internet_splithttp_config_proto_goTypes = []any{
-	(*Config)(nil),          // 0: xray.transport.internet.splithttp.Config
-	(*RandRangeConfig)(nil), // 1: xray.transport.internet.splithttp.RandRangeConfig
-	(*Multiplexing)(nil),    // 2: xray.transport.internet.splithttp.Multiplexing
-	nil,                     // 3: xray.transport.internet.splithttp.Config.HeaderEntry
+	(*Config)(nil),                // 0: xray.transport.internet.splithttp.Config
+	(*RandRangeConfig)(nil),       // 1: xray.transport.internet.splithttp.RandRangeConfig
+	(*Multiplexing)(nil),          // 2: xray.transport.internet.splithttp.Multiplexing
+	nil,                           // 3: xray.transport.internet.splithttp.Config.HeaderEntry
+	(*internet.StreamConfig)(nil), // 4: xray.transport.internet.StreamConfig
 }
 var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	3,  // 0: xray.transport.internet.splithttp.Config.header:type_name -> xray.transport.internet.splithttp.Config.HeaderEntry
@@ -367,15 +395,16 @@ var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	1,  // 3: xray.transport.internet.splithttp.Config.scMinPostsIntervalMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	1,  // 4: xray.transport.internet.splithttp.Config.xPaddingBytes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	2,  // 5: xray.transport.internet.splithttp.Config.xmux:type_name -> xray.transport.internet.splithttp.Multiplexing
-	1,  // 6: xray.transport.internet.splithttp.Multiplexing.maxConcurrency:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	1,  // 7: xray.transport.internet.splithttp.Multiplexing.maxConnections:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	1,  // 8: xray.transport.internet.splithttp.Multiplexing.cMaxReuseTimes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	1,  // 9: xray.transport.internet.splithttp.Multiplexing.cMaxLifetimeMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	10, // [10:10] is the sub-list for method output_type
-	10, // [10:10] is the sub-list for method input_type
-	10, // [10:10] is the sub-list for extension type_name
-	10, // [10:10] is the sub-list for extension extendee
-	0,  // [0:10] is the sub-list for field type_name
+	4,  // 6: xray.transport.internet.splithttp.Config.downloadStreamConfig:type_name -> xray.transport.internet.StreamConfig
+	1,  // 7: xray.transport.internet.splithttp.Multiplexing.maxConcurrency:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1,  // 8: xray.transport.internet.splithttp.Multiplexing.maxConnections:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1,  // 9: xray.transport.internet.splithttp.Multiplexing.cMaxReuseTimes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1,  // 10: xray.transport.internet.splithttp.Multiplexing.cMaxLifetimeMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	11, // [11:11] is the sub-list for method output_type
+	11, // [11:11] is the sub-list for method input_type
+	11, // [11:11] is the sub-list for extension type_name
+	11, // [11:11] is the sub-list for extension extendee
+	0,  // [0:11] is the sub-list for field type_name
 }
 
 func init() { file_transport_internet_splithttp_config_proto_init() }
diff --git a/transport/internet/splithttp/config.proto b/transport/internet/splithttp/config.proto
index 249f1e9363aa..0b25cb8d9afb 100644
--- a/transport/internet/splithttp/config.proto
+++ b/transport/internet/splithttp/config.proto
@@ -6,6 +6,8 @@ option go_package = "github.com/xtls/xray-core/transport/internet/splithttp";
 option java_package = "com.xray.transport.internet.splithttp";
 option java_multiple_files = true;
 
+import "transport/internet/config.proto";
+
 message Config {
   string host = 1;
   string path = 2;
@@ -16,6 +18,8 @@ message Config {
   bool noSSEHeader = 7;
   RandRangeConfig xPaddingBytes = 8;
   Multiplexing xmux = 9;
+  string downloadAddrPort = 10;
+  xray.transport.internet.StreamConfig downloadStreamConfig = 11;
 }
 
 message RandRangeConfig {
diff --git a/transport/internet/splithttp/dialer.go b/transport/internet/splithttp/dialer.go
index 89f3b6310e7c..122530e8784e 100644
--- a/transport/internet/splithttp/dialer.go
+++ b/transport/internet/splithttp/dialer.go
@@ -254,6 +254,31 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 	httpClient, muxResource := getHTTPClient(ctx, dest, streamSettings)
 
+	var httpClient2 DialerClient
+	var requestURL2 url.URL
+	if transportConfiguration.DownloadAddrPort != "" {
+		addr2, port2, _ := net.SplitHostPort(transportConfiguration.DownloadAddrPort)
+		dest2 := net.Destination{
+			Address: net.ParseAddress(addr2),
+			Port:    common.Must2(net.PortFromString(port2)).(net.Port),
+			Network: net.Network_TCP,
+		}
+		memory2 := common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadStreamConfig)).(*internet.MemoryStreamConfig)
+		httpClient2, _ = getHTTPClient(ctx, dest2, memory2) // no multiplex
+		if tls.ConfigFromStreamSettings(memory2) != nil || reality.ConfigFromStreamSettings(memory2) != nil {
+			requestURL2.Scheme = "https"
+		} else {
+			requestURL2.Scheme = "http"
+		}
+		config2 := memory2.ProtocolSettings.(*Config)
+		requestURL2.Host = config2.Host
+		if requestURL2.Host == "" {
+			requestURL2.Host = dest2.NetAddr()
+		}
+		requestURL2.Path = requestURL.Path // the same
+		requestURL2.RawQuery = config2.GetNormalizedQuery()
+	}
+
 	maxUploadSize := scMaxEachPostBytes.roll()
 	// WithSizeLimit(0) will still allow single bytes to pass, and a lot of
 	// code relies on this behavior. Subtract 1 so that together with
@@ -321,7 +346,14 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 		}
 	}()
 
-	reader, remoteAddr, localAddr, err := httpClient.OpenDownload(context.WithoutCancel(ctx), requestURL.String())
+	httpClient3 := httpClient
+	requestURL3 := requestURL
+	if httpClient2 != nil {
+		httpClient3 = httpClient2
+		requestURL3 = requestURL2
+	}
+
+	reader, remoteAddr, localAddr, err := httpClient3.OpenDownload(context.WithoutCancel(ctx), requestURL3.String())
 	if err != nil {
 		return nil, err
 	}

From 5540b7aee70c66b6a36d11138ce8aaf165709320 Mon Sep 17 00:00:00 2001
From: RPRX <63339210+RPRX@users.noreply.github.com>
Date: Thu, 31 Oct 2024 05:19:32 +0000
Subject: [PATCH 2/3] Transport: Add XHTTP as an alias of SplitHTTP

---
 infra/conf/transport_internet.go | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/infra/conf/transport_internet.go b/infra/conf/transport_internet.go
index b4f82b505d33..7a78e69c8ea0 100644
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -682,7 +682,7 @@ func (p TransportProtocol) Build() (string, error) {
 		return "grpc", nil
 	case "httpupgrade":
 		return "httpupgrade", nil
-	case "splithttp":
+	case "xhttp", "splithttp":
 		return "splithttp", nil
 	default:
 		return "", errors.New("Config: unknown transport protocol: ", p)
@@ -817,6 +817,7 @@ type StreamConfig struct {
 	SocketSettings      *SocketConfig      `json:"sockopt"`
 	GRPCConfig          *GRPCConfig        `json:"grpcSettings"`
 	HTTPUPGRADESettings *HttpUpgradeConfig `json:"httpupgradeSettings"`
+	XHTTPSettings       *SplitHTTPConfig   `json:"xhttpSettings"`
 	SplitHTTPSettings   *SplitHTTPConfig   `json:"splithttpSettings"`
 }
 
@@ -848,7 +849,7 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		config.SecurityType = tm.Type
 	case "reality":
 		if config.ProtocolName != "tcp" && config.ProtocolName != "http" && config.ProtocolName != "grpc" && config.ProtocolName != "splithttp" {
-			return nil, errors.New("REALITY only supports TCP, H2, gRPC and SplitHTTP for now.")
+			return nil, errors.New("REALITY only supports RAW, H2, gRPC and XHTTP for now.")
 		}
 		if c.REALITYSettings == nil {
 			return nil, errors.New(`REALITY: Empty "realitySettings".`)
@@ -928,10 +929,13 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 			Settings:     serial.ToTypedMessage(hs),
 		})
 	}
+	if c.XHTTPSettings != nil {
+		c.SplitHTTPSettings = c.XHTTPSettings
+	}
 	if c.SplitHTTPSettings != nil {
 		hs, err := c.SplitHTTPSettings.Build()
 		if err != nil {
-			return nil, errors.New("Failed to build SplitHTTP config.").Base(err)
+			return nil, errors.New("Failed to build XHTTP config.").Base(err)
 		}
 		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
 			ProtocolName: "splithttp",

From 8964e73a968402b29c9209fbed4335501f26dbbc Mon Sep 17 00:00:00 2001
From: RPRX <63339210+RPRX@users.noreply.github.com>
Date: Thu, 31 Oct 2024 06:47:06 +0000
Subject: [PATCH 3/3] XHTTP config: Use `downloadSettings` instead

---
 infra/conf/transport_internet.go          |  22 +-
 transport/internet/config.pb.go           | 279 ++++++++++++----------
 transport/internet/config.proto           |   4 +
 transport/internet/splithttp/config.pb.go |  89 +++----
 transport/internet/splithttp/config.proto |   3 +-
 transport/internet/splithttp/dialer.go    |   9 +-
 6 files changed, 213 insertions(+), 193 deletions(-)

diff --git a/infra/conf/transport_internet.go b/infra/conf/transport_internet.go
index 7a78e69c8ea0..c81123a31c0e 100644
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -232,8 +232,7 @@ type SplitHTTPConfig struct {
 	NoSSEHeader          bool              `json:"noSSEHeader"`
 	XPaddingBytes        *Int32Range       `json:"xPaddingBytes"`
 	Xmux                 Xmux              `json:"xmux"`
-	DownloadAddrPort     string            `json:"downloadAddrPort"`
-	DownloadStreamConfig *StreamConfig     `json:"downloadStreamConfig"`
+	DownloadSettings     *StreamConfig     `json:"downloadSettings"`
 }
 
 type Xmux struct {
@@ -290,11 +289,6 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		muxProtobuf.CMaxReuseTimes.To = 128
 	}
 
-	var downloadStreamConfig *internet.StreamConfig
-	if c.DownloadAddrPort != "" {
-		downloadStreamConfig, _ = c.DownloadStreamConfig.Build() // just panic
-	}
-
 	config := &splithttp.Config{
 		Path:                 c.Path,
 		Host:                 c.Host,
@@ -305,8 +299,12 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		NoSSEHeader:          c.NoSSEHeader,
 		XPaddingBytes:        splithttpNewRandRangeConfig(c.XPaddingBytes),
 		Xmux:                 &muxProtobuf,
-		DownloadAddrPort:     c.DownloadAddrPort,
-		DownloadStreamConfig: downloadStreamConfig,
+	}
+	var err error
+	if c.DownloadSettings != nil {
+		if config.DownloadSettings, err = c.DownloadSettings.Build(); err != nil {
+			return nil, errors.New(`Failed to build "downloadSettings".`).Base(err)
+		}
 	}
 	return config, nil
 }
@@ -805,6 +803,8 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 }
 
 type StreamConfig struct {
+	Address             *Address           `json:"address"`
+	Port                uint16             `json:"port"`
 	Network             *TransportProtocol `json:"network"`
 	Security            string             `json:"security"`
 	TLSSettings         *TLSConfig         `json:"tlsSettings"`
@@ -824,8 +824,12 @@ type StreamConfig struct {
 // Build implements Buildable.
 func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 	config := &internet.StreamConfig{
+		Port:         uint32(c.Port),
 		ProtocolName: "tcp",
 	}
+	if c.Address != nil {
+		config.Address = c.Address.Build()
+	}
 	if c.Network != nil {
 		protocol, err := c.Network.Build()
 		if err != nil {
diff --git a/transport/internet/config.pb.go b/transport/internet/config.pb.go
index 1989851c4a4f..98e408e91994 100644
--- a/transport/internet/config.pb.go
+++ b/transport/internet/config.pb.go
@@ -7,6 +7,7 @@
 package internet
 
 import (
+	net "github.com/xtls/xray-core/common/net"
 	serial "github.com/xtls/xray-core/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -206,6 +207,8 @@ type StreamConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	Address *net.IPOrDomain `protobuf:"bytes,8,opt,name=address,proto3" json:"address,omitempty"`
+	Port    uint32          `protobuf:"varint,9,opt,name=port,proto3" json:"port,omitempty"`
 	// Effective network.
 	ProtocolName      string             `protobuf:"bytes,5,opt,name=protocol_name,json=protocolName,proto3" json:"protocol_name,omitempty"`
 	TransportSettings []*TransportConfig `protobuf:"bytes,2,rep,name=transport_settings,json=transportSettings,proto3" json:"transport_settings,omitempty"`
@@ -246,6 +249,20 @@ func (*StreamConfig) Descriptor() ([]byte, []int) {
 	return file_transport_internet_config_proto_rawDescGZIP(), []int{1}
 }
 
+func (x *StreamConfig) GetAddress() *net.IPOrDomain {
+	if x != nil {
+		return x.Address
+	}
+	return nil
+}
+
+func (x *StreamConfig) GetPort() uint32 {
+	if x != nil {
+		return x.Port
+	}
+	return 0
+}
+
 func (x *StreamConfig) GetProtocolName() string {
 	if x != nil {
 		return x.ProtocolName
@@ -614,123 +631,129 @@ var file_transport_internet_config_proto_rawDesc = []byte{
 	0x6f, 0x12, 0x17, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
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 }
 
 var (
@@ -756,20 +779,22 @@ var file_transport_internet_config_proto_goTypes = []any{
 	(*CustomSockopt)(nil),        // 5: xray.transport.internet.CustomSockopt
 	(*SocketConfig)(nil),         // 6: xray.transport.internet.SocketConfig
 	(*serial.TypedMessage)(nil),  // 7: xray.common.serial.TypedMessage
+	(*net.IPOrDomain)(nil),       // 8: xray.common.net.IPOrDomain
 }
 var file_transport_internet_config_proto_depIdxs = []int32{
 	7, // 0: xray.transport.internet.TransportConfig.settings:type_name -> xray.common.serial.TypedMessage
-	2, // 1: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
-	7, // 2: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
-	6, // 3: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
-	1, // 4: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
-	0, // 5: xray.transport.internet.SocketConfig.domain_strategy:type_name -> xray.transport.internet.DomainStrategy
-	5, // 6: xray.transport.internet.SocketConfig.customSockopt:type_name -> xray.transport.internet.CustomSockopt
-	7, // [7:7] is the sub-list for method output_type
-	7, // [7:7] is the sub-list for method input_type
-	7, // [7:7] is the sub-list for extension type_name
-	7, // [7:7] is the sub-list for extension extendee
-	0, // [0:7] is the sub-list for field type_name
+	8, // 1: xray.transport.internet.StreamConfig.address:type_name -> xray.common.net.IPOrDomain
+	2, // 2: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
+	7, // 3: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
+	6, // 4: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
+	1, // 5: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
+	0, // 6: xray.transport.internet.SocketConfig.domain_strategy:type_name -> xray.transport.internet.DomainStrategy
+	5, // 7: xray.transport.internet.SocketConfig.customSockopt:type_name -> xray.transport.internet.CustomSockopt
+	8, // [8:8] is the sub-list for method output_type
+	8, // [8:8] is the sub-list for method input_type
+	8, // [8:8] is the sub-list for extension type_name
+	8, // [8:8] is the sub-list for extension extendee
+	0, // [0:8] is the sub-list for field type_name
 }
 
 func init() { file_transport_internet_config_proto_init() }
diff --git a/transport/internet/config.proto b/transport/internet/config.proto
index b892deb3e0bf..008e33c63570 100644
--- a/transport/internet/config.proto
+++ b/transport/internet/config.proto
@@ -7,6 +7,7 @@ option java_package = "com.xray.transport.internet";
 option java_multiple_files = true;
 
 import "common/serial/typed_message.proto";
+import "common/net/address.proto";
 
 enum DomainStrategy {
   AS_IS = 0;
@@ -31,6 +32,9 @@ message TransportConfig {
 }
 
 message StreamConfig {
+  xray.common.net.IPOrDomain address = 8;
+  uint32 port = 9;
+
   // Effective network.
   string protocol_name = 5;
 
diff --git a/transport/internet/splithttp/config.pb.go b/transport/internet/splithttp/config.pb.go
index ed2318cbb0e2..f3f80831e121 100644
--- a/transport/internet/splithttp/config.pb.go
+++ b/transport/internet/splithttp/config.pb.go
@@ -35,8 +35,7 @@ type Config struct {
 	NoSSEHeader          bool                   `protobuf:"varint,7,opt,name=noSSEHeader,proto3" json:"noSSEHeader,omitempty"`
 	XPaddingBytes        *RandRangeConfig       `protobuf:"bytes,8,opt,name=xPaddingBytes,proto3" json:"xPaddingBytes,omitempty"`
 	Xmux                 *Multiplexing          `protobuf:"bytes,9,opt,name=xmux,proto3" json:"xmux,omitempty"`
-	DownloadAddrPort     string                 `protobuf:"bytes,10,opt,name=downloadAddrPort,proto3" json:"downloadAddrPort,omitempty"`
-	DownloadStreamConfig *internet.StreamConfig `protobuf:"bytes,11,opt,name=downloadStreamConfig,proto3" json:"downloadStreamConfig,omitempty"`
+	DownloadSettings     *internet.StreamConfig `protobuf:"bytes,10,opt,name=downloadSettings,proto3" json:"downloadSettings,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -132,16 +131,9 @@ func (x *Config) GetXmux() *Multiplexing {
 	return nil
 }
 
-func (x *Config) GetDownloadAddrPort() string {
+func (x *Config) GetDownloadSettings() *internet.StreamConfig {
 	if x != nil {
-		return x.DownloadAddrPort
-	}
-	return ""
-}
-
-func (x *Config) GetDownloadStreamConfig() *internet.StreamConfig {
-	if x != nil {
-		return x.DownloadStreamConfig
+		return x.DownloadSettings
 	}
 	return nil
 }
@@ -278,7 +270,7 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
 	0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x1a, 0x1f,
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@@ -317,55 +309,52 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -395,7 +384,7 @@ var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	1,  // 3: xray.transport.internet.splithttp.Config.scMinPostsIntervalMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	1,  // 4: xray.transport.internet.splithttp.Config.xPaddingBytes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	2,  // 5: xray.transport.internet.splithttp.Config.xmux:type_name -> xray.transport.internet.splithttp.Multiplexing
-	4,  // 6: xray.transport.internet.splithttp.Config.downloadStreamConfig:type_name -> xray.transport.internet.StreamConfig
+	4,  // 6: xray.transport.internet.splithttp.Config.downloadSettings:type_name -> xray.transport.internet.StreamConfig
 	1,  // 7: xray.transport.internet.splithttp.Multiplexing.maxConcurrency:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	1,  // 8: xray.transport.internet.splithttp.Multiplexing.maxConnections:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	1,  // 9: xray.transport.internet.splithttp.Multiplexing.cMaxReuseTimes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
diff --git a/transport/internet/splithttp/config.proto b/transport/internet/splithttp/config.proto
index 0b25cb8d9afb..384ae60501b9 100644
--- a/transport/internet/splithttp/config.proto
+++ b/transport/internet/splithttp/config.proto
@@ -18,8 +18,7 @@ message Config {
   bool noSSEHeader = 7;
   RandRangeConfig xPaddingBytes = 8;
   Multiplexing xmux = 9;
-  string downloadAddrPort = 10;
-  xray.transport.internet.StreamConfig downloadStreamConfig = 11;
+  xray.transport.internet.StreamConfig downloadSettings = 10;
 }
 
 message RandRangeConfig {
diff --git a/transport/internet/splithttp/dialer.go b/transport/internet/splithttp/dialer.go
index 122530e8784e..c43783ec0dc4 100644
--- a/transport/internet/splithttp/dialer.go
+++ b/transport/internet/splithttp/dialer.go
@@ -256,14 +256,13 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 	var httpClient2 DialerClient
 	var requestURL2 url.URL
-	if transportConfiguration.DownloadAddrPort != "" {
-		addr2, port2, _ := net.SplitHostPort(transportConfiguration.DownloadAddrPort)
+	if transportConfiguration.DownloadSettings != nil {
 		dest2 := net.Destination{
-			Address: net.ParseAddress(addr2),
-			Port:    common.Must2(net.PortFromString(port2)).(net.Port),
+			Address: transportConfiguration.DownloadSettings.Address.AsAddress(), // just panic
+			Port:    net.Port(transportConfiguration.DownloadSettings.Port),
 			Network: net.Network_TCP,
 		}
-		memory2 := common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadStreamConfig)).(*internet.MemoryStreamConfig)
+		memory2 := common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadSettings)).(*internet.MemoryStreamConfig)
 		httpClient2, _ = getHTTPClient(ctx, dest2, memory2) // no multiplex
 		if tls.ConfigFromStreamSettings(memory2) != nil || reality.ConfigFromStreamSettings(memory2) != nil {
 			requestURL2.Scheme = "https"