SplitHTTP: Rename three options & Reduce server defaults (#3611)

* maxUploadSize -> scMaxEachPostBytes, default is 1MB on both sides (was 2MB on the server)
* minUploadIntervalMs -> scMinPostsIntervalMs, default is 30ms on the client (no server support for now)
* maxConcurrentUploads -> scMaxConcurrentPosts, default is 100 on both sides (was 200 on the server)

infra/conf/transport_internet.go

@@ -229,9 +229,9 @@ type SplitHTTPConfig struct {
 	Host                 string            `json:"host"`
 	Path                 string            `json:"path"`
 	Headers              map[string]string `json:"headers"`
-	MaxConcurrentUploads Int32Range        `json:"maxConcurrentUploads"`
-	MaxUploadSize        Int32Range        `json:"maxUploadSize"`
-	MinUploadIntervalMs  Int32Range        `json:"minUploadIntervalMs"`
+	ScMaxConcurrentPosts Int32Range        `json:"scMaxConcurrentPosts"`
+	ScMaxEachPostBytes   Int32Range        `json:"scMaxEachPostBytes"`
+	ScMinPostsIntervalMs Int32Range        `json:"scMinPostsIntervalMs"`
 	NoSSEHeader          bool              `json:"noSSEHeader"`
 }
 
@@ -249,17 +249,17 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		Path:   c.Path,
 		Host:   c.Host,
 		Header: c.Headers,
-		MaxConcurrentUploads: &splithttp.RandRangeConfig{
-			From: c.MaxConcurrentUploads.From,
-			To:   c.MaxConcurrentUploads.To,
+		ScMaxConcurrentPosts: &splithttp.RandRangeConfig{
+			From: c.ScMaxConcurrentPosts.From,
+			To:   c.ScMaxConcurrentPosts.To,
 		},
-		MaxUploadSize: &splithttp.RandRangeConfig{
-			From: c.MaxUploadSize.From,
-			To:   c.MaxUploadSize.To,
+		ScMaxEachPostBytes: &splithttp.RandRangeConfig{
+			From: c.ScMaxEachPostBytes.From,
+			To:   c.ScMaxEachPostBytes.To,
 		},
-		MinUploadIntervalMs: &splithttp.RandRangeConfig{
-			From: c.MinUploadIntervalMs.From,
-			To:   c.MinUploadIntervalMs.To,
+		ScMinPostsIntervalMs: &splithttp.RandRangeConfig{
+			From: c.ScMinPostsIntervalMs.From,
+			To:   c.ScMinPostsIntervalMs.To,
 		},
 		NoSSEHeader: c.NoSSEHeader,
 	}

transport/internet/splithttp/config.go

@@ -36,51 +36,37 @@ func (c *Config) GetRequestHeader() http.Header {
 	return header
 }
 
-func (c *Config) GetNormalizedMaxConcurrentUploads(isServer bool) RandRangeConfig {
-	if c.MaxConcurrentUploads == nil || c.MaxConcurrentUploads.To == 0 {
-		if isServer {
-			return RandRangeConfig{
-				From: 200,
-				To:   200,
-			}
-		} else {
-			return RandRangeConfig{
-				From: 100,
-				To:   100,
-			}
+func (c *Config) GetNormalizedScMaxConcurrentPosts() RandRangeConfig {
+	if c.ScMaxConcurrentPosts == nil || c.ScMaxConcurrentPosts.To == 0 {
+		return RandRangeConfig{
+			From: 100,
+			To:   100,
 		}
 	}
 
-	return *c.MaxConcurrentUploads
+	return *c.ScMaxConcurrentPosts
 }
 
-func (c *Config) GetNormalizedMaxUploadSize(isServer bool) RandRangeConfig {
-	if c.MaxUploadSize == nil || c.MaxUploadSize.To == 0 {
-		if isServer {
-			return RandRangeConfig{
-				From: 2000000,
-				To:   2000000,
-			}
-		} else {
-			return RandRangeConfig{
-				From: 1000000,
-				To:   1000000,
-			}
+func (c *Config) GetNormalizedScMaxEachPostBytes() RandRangeConfig {
+	if c.ScMaxEachPostBytes == nil || c.ScMaxEachPostBytes.To == 0 {
+		return RandRangeConfig{
+			From: 1000000,
+			To:   1000000,
 		}
 	}
 
-	return *c.MaxUploadSize
+	return *c.ScMaxEachPostBytes
 }
 
-func (c *Config) GetNormalizedMinUploadInterval() RandRangeConfig {
-	if c.MinUploadIntervalMs == nil || c.MinUploadIntervalMs.To == 0 {
+func (c *Config) GetNormalizedScMinPostsIntervalMs() RandRangeConfig {
+	if c.ScMinPostsIntervalMs == nil || c.ScMinPostsIntervalMs.To == 0 {
 		return RandRangeConfig{
 			From: 30,
 			To:   30,
 		}
 	}
 
-	return *c.MinUploadIntervalMs
+	return *c.ScMinPostsIntervalMs
 }
 
 func init() {

transport/internet/splithttp/config.pb.go

@@ -28,9 +28,9 @@ type Config struct {
 	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"`
-	MaxConcurrentUploads *RandRangeConfig  `protobuf:"bytes,4,opt,name=maxConcurrentUploads,proto3" json:"maxConcurrentUploads,omitempty"`
-	MaxUploadSize        *RandRangeConfig  `protobuf:"bytes,5,opt,name=maxUploadSize,proto3" json:"maxUploadSize,omitempty"`
-	MinUploadIntervalMs  *RandRangeConfig  `protobuf:"bytes,6,opt,name=minUploadIntervalMs,proto3" json:"minUploadIntervalMs,omitempty"`
+	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"`
 }
 
@@ -87,23 +87,23 @@ func (x *Config) GetHeader() map[string]string {
 	return nil
 }
 
-func (x *Config) GetMaxConcurrentUploads() *RandRangeConfig {
+func (x *Config) GetScMaxConcurrentPosts() *RandRangeConfig {
 	if x != nil {
-		return x.MaxConcurrentUploads
+		return x.ScMaxConcurrentPosts
 	}
 	return nil
 }
 
-func (x *Config) GetMaxUploadSize() *RandRangeConfig {
+func (x *Config) GetScMaxEachPostBytes() *RandRangeConfig {
 	if x != nil {
-		return x.MaxUploadSize
+		return x.ScMaxEachPostBytes
 	}
 	return nil
 }
 
-func (x *Config) GetMinUploadIntervalMs() *RandRangeConfig {
+func (x *Config) GetScMinPostsIntervalMs() *RandRangeConfig {
 	if x != nil {
-		return x.MinUploadIntervalMs
+		return x.ScMinPostsIntervalMs
 	}
 	return nil
 }
@@ -177,7 +177,7 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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@@ -192,37 +192,37 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -245,9 +245,9 @@ var file_transport_internet_splithttp_config_proto_goTypes = []interface{}{
 }
 var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	2, // 0: xray.transport.internet.splithttp.Config.header:type_name -> xray.transport.internet.splithttp.Config.HeaderEntry
-	1, // 1: xray.transport.internet.splithttp.Config.maxConcurrentUploads:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	1, // 2: xray.transport.internet.splithttp.Config.maxUploadSize:type_name -> xray.transport.internet.splithttp.RandRangeConfig
-	1, // 3: xray.transport.internet.splithttp.Config.minUploadIntervalMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1, // 1: xray.transport.internet.splithttp.Config.scMaxConcurrentPosts:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1, // 2: xray.transport.internet.splithttp.Config.scMaxEachPostBytes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
+	1, // 3: xray.transport.internet.splithttp.Config.scMinPostsIntervalMs:type_name -> xray.transport.internet.splithttp.RandRangeConfig
 	4, // [4:4] is the sub-list for method output_type
 	4, // [4:4] is the sub-list for method input_type
 	4, // [4:4] is the sub-list for extension type_name

transport/internet/splithttp/config.proto

@@ -10,9 +10,9 @@ message Config {
   string host = 1;
   string path = 2;
   map<string, string> header = 3;
-  RandRangeConfig maxConcurrentUploads = 4;
-  RandRangeConfig maxUploadSize = 5;
-  RandRangeConfig minUploadIntervalMs = 6;
+  RandRangeConfig scMaxConcurrentPosts = 4;
+  RandRangeConfig scMaxEachPostBytes = 5;
+  RandRangeConfig scMinPostsIntervalMs = 6;
   bool noSSEHeader = 7;
 }
 

transport/internet/splithttp/dialer.go

@@ -181,9 +181,9 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 	transportConfiguration := streamSettings.ProtocolSettings.(*Config)
 	tlsConfig := tls.ConfigFromStreamSettings(streamSettings)
 
-	maxConcurrentUploads := transportConfiguration.GetNormalizedMaxConcurrentUploads(false)
-	maxUploadSize := transportConfiguration.GetNormalizedMaxUploadSize(false)
-	minUploadInterval := transportConfiguration.GetNormalizedMinUploadInterval()
+	scMaxConcurrentPosts := transportConfiguration.GetNormalizedScMaxConcurrentPosts()
+	scMaxEachPostBytes := transportConfiguration.GetNormalizedScMaxEachPostBytes()
+	scMinPostsIntervalMs := transportConfiguration.GetNormalizedScMinPostsIntervalMs()
 
 	if tlsConfig != nil {
 		requestURL.Scheme = "https"
@@ -201,10 +201,10 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 	httpClient := getHTTPClient(ctx, dest, streamSettings)
 
-	uploadPipeReader, uploadPipeWriter := pipe.New(pipe.WithSizeLimit(maxUploadSize.roll()))
+	uploadPipeReader, uploadPipeWriter := pipe.New(pipe.WithSizeLimit(scMaxEachPostBytes.roll()))
 
 	go func() {
-		requestsLimiter := semaphore.New(int(maxConcurrentUploads.roll()))
+		requestsLimiter := semaphore.New(int(scMaxConcurrentPosts.roll()))
 		var requestCounter int64
 
 		lastWrite := time.Now()
@@ -239,8 +239,8 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 				}
 			}()
 
-			if minUploadInterval.From > 0 {
-				roll := time.Duration(minUploadInterval.roll()) * time.Millisecond
+			if scMinPostsIntervalMs.From > 0 {
+				roll := time.Duration(scMinPostsIntervalMs.roll()) * time.Millisecond
 				if time.Since(lastWrite) < roll {
 					time.Sleep(roll)
 				}

transport/internet/splithttp/hub.go

@@ -76,7 +76,7 @@ func (h *requestHandler) upsertSession(sessionId string) *httpSession {
 	}
 
 	s := &httpSession{
-		uploadQueue:      NewUploadQueue(int(h.ln.config.GetNormalizedMaxConcurrentUploads(true).To)),
+		uploadQueue:      NewUploadQueue(int(h.ln.config.GetNormalizedScMaxConcurrentPosts().To)),
 		isFullyConnected: done.New(),
 	}
 
@@ -123,7 +123,7 @@ func (h *requestHandler) ServeHTTP(writer http.ResponseWriter, request *http.Req
 	}
 
 	currentSession := h.upsertSession(sessionId)
-	maxUploadSize := int(h.ln.config.GetNormalizedMaxUploadSize(true).To)
+	scMaxEachPostBytes := int(h.ln.config.GetNormalizedScMaxEachPostBytes().To)
 
 	if request.Method == "POST" {
 		seq := ""
@@ -139,8 +139,8 @@ func (h *requestHandler) ServeHTTP(writer http.ResponseWriter, request *http.Req
 
 		payload, err := io.ReadAll(request.Body)
 
-		if len(payload) > maxUploadSize {
-			errors.LogInfo(context.Background(), "Too large upload. maxUploadSize is set to", maxUploadSize, "but request had size", len(payload), ". Adjust maxUploadSize on the server to be at least as large as client.")
+		if len(payload) > scMaxEachPostBytes {
+			errors.LogInfo(context.Background(), "Too large upload. scMaxEachPostBytes is set to ", scMaxEachPostBytes, "but request had size ", len(payload), ". Adjust scMaxEachPostBytes on the server to be at least as large as client.")
 			writer.WriteHeader(http.StatusRequestEntityTooLarge)
 			return
 		}