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https://github.com/XTLS/Xray-core.git
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SplitHTTP client: Add xmux (multiplex controller) for H3 & H2 (#3613)
https://github.com/XTLS/Xray-core/pull/3613#issuecomment-2351954957 Closes https://github.com/XTLS/Xray-core/issues/3560#issuecomment-2247495778 --------- Co-authored-by: mmmray <142015632+mmmray@users.noreply.github.com>
This commit is contained in:
ll11l1lIllIl1lll
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@ -231,6 +231,14 @@ type SplitHTTPConfig struct {
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ScMinPostsIntervalMs *Int32Range `json:"scMinPostsIntervalMs"`
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NoSSEHeader bool `json:"noSSEHeader"`
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XPaddingBytes *Int32Range `json:"xPaddingBytes"`
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Xmux Xmux `json:"xmux"`
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}
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type Xmux struct {
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maxConnections *Int32Range `json:"maxConnections"`
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maxConcurrency *Int32Range `json:"maxConcurrency"`
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cMaxReuseTimes *Int32Range `json:"cMaxReuseTimes"`
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cMaxLifetimeMs *Int32Range `json:"cMaxLifetimeMs"`
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}
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func splithttpNewRandRangeConfig(input *Int32Range) *splithttp.RandRangeConfig {
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@ -254,6 +262,19 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
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} else if c.Host == "" && c.Headers["Host"] != "" {
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c.Host = c.Headers["Host"]
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}
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if c.Xmux.maxConnections != nil && c.Xmux.maxConcurrency != nil {
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return nil, errors.New("maxConnections cannot be specified together with maxConcurrency")
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}
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// Multiplexing config
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muxProtobuf := splithttp.Multiplexing{
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MaxConnections: splithttpNewRandRangeConfig(c.Xmux.maxConnections),
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MaxConcurrency: splithttpNewRandRangeConfig(c.Xmux.maxConcurrency),
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CMaxReuseTimes: splithttpNewRandRangeConfig(c.Xmux.cMaxReuseTimes),
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CMaxLifetimeMs: splithttpNewRandRangeConfig(c.Xmux.cMaxLifetimeMs),
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}
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config := &splithttp.Config{
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Path: c.Path,
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Host: c.Host,
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@ -263,6 +284,7 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
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ScMinPostsIntervalMs: splithttpNewRandRangeConfig(c.ScMinPostsIntervalMs),
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NoSSEHeader: c.NoSSEHeader,
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XPaddingBytes: splithttpNewRandRangeConfig(c.XPaddingBytes),
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Xmux: &muxProtobuf,
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}
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return config, nil
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}
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@ -30,8 +30,7 @@ type DialerClient interface {
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// implements splithttp.DialerClient in terms of direct network connections
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type DefaultDialerClient struct {
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transportConfig *Config
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download *http.Client
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upload *http.Client
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client *http.Client
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isH2 bool
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isH3 bool
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// pool of net.Conn, created using dialUploadConn
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@ -80,7 +79,7 @@ func (c *DefaultDialerClient) OpenDownload(ctx context.Context, baseURL string)
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req.Header = c.transportConfig.GetRequestHeader()
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response, err := c.download.Do(req)
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response, err := c.client.Do(req)
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gotConn.Close()
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if err != nil {
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errors.LogInfoInner(ctx, err, "failed to send download http request")
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@ -138,7 +137,7 @@ func (c *DefaultDialerClient) SendUploadRequest(ctx context.Context, url string,
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req.Header = c.transportConfig.GetRequestHeader()
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if c.isH2 || c.isH3 {
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resp, err := c.upload.Do(req)
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resp, err := c.client.Do(req)
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if err != nil {
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return err
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}
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@ -105,6 +105,49 @@ func (c *Config) GetNormalizedXPaddingBytes() RandRangeConfig {
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return *c.XPaddingBytes
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}
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func (m *Multiplexing) GetNormalizedCMaxReuseTimes() RandRangeConfig {
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if m.CMaxReuseTimes == nil {
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return RandRangeConfig{
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From: 0,
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To: 0,
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}
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}
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return *m.CMaxReuseTimes
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}
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func (m *Multiplexing) GetNormalizedCMaxLifetimeMs() RandRangeConfig {
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if m.CMaxLifetimeMs == nil || m.CMaxLifetimeMs.To == 0 {
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return RandRangeConfig{
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From: 0,
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To: 0,
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}
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}
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return *m.CMaxLifetimeMs
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}
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func (m *Multiplexing) GetNormalizedMaxConnections() RandRangeConfig {
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if m.MaxConnections == nil {
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return RandRangeConfig{
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From: 0,
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To: 0,
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}
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}
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return *m.MaxConnections
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}
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func (m *Multiplexing) GetNormalizedMaxConcurrency() RandRangeConfig {
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if m.MaxConcurrency == nil {
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return RandRangeConfig{
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From: 0,
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To: 0,
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}
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}
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return *m.MaxConcurrency
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}
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func init() {
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common.Must(internet.RegisterProtocolConfigCreator(protocolName, func() interface{} {
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return new(Config)
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@ -33,6 +33,7 @@ type Config struct {
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ScMinPostsIntervalMs *RandRangeConfig `protobuf:"bytes,6,opt,name=scMinPostsIntervalMs,proto3" json:"scMinPostsIntervalMs,omitempty"`
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NoSSEHeader bool `protobuf:"varint,7,opt,name=noSSEHeader,proto3" json:"noSSEHeader,omitempty"`
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XPaddingBytes *RandRangeConfig `protobuf:"bytes,8,opt,name=xPaddingBytes,proto3" json:"xPaddingBytes,omitempty"`
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Xmux *Multiplexing `protobuf:"bytes,9,opt,name=xmux,proto3" json:"xmux,omitempty"`
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}
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func (x *Config) Reset() {
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@ -123,6 +124,13 @@ func (x *Config) GetXPaddingBytes() *RandRangeConfig {
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return nil
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}
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func (x *Config) GetXmux() *Multiplexing {
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if x != nil {
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return x.Xmux
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}
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return nil
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}
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type RandRangeConfig struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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@ -178,6 +186,77 @@ func (x *RandRangeConfig) GetTo() int32 {
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return 0
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}
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type Multiplexing struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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MaxConnections *RandRangeConfig `protobuf:"bytes,1,opt,name=maxConnections,proto3" json:"maxConnections,omitempty"`
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MaxConcurrency *RandRangeConfig `protobuf:"bytes,2,opt,name=maxConcurrency,proto3" json:"maxConcurrency,omitempty"`
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CMaxReuseTimes *RandRangeConfig `protobuf:"bytes,3,opt,name=cMaxReuseTimes,proto3" json:"cMaxReuseTimes,omitempty"`
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CMaxLifetimeMs *RandRangeConfig `protobuf:"bytes,4,opt,name=cMaxLifetimeMs,proto3" json:"cMaxLifetimeMs,omitempty"`
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}
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func (x *Multiplexing) Reset() {
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*x = Multiplexing{}
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if protoimpl.UnsafeEnabled {
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mi := &file_transport_internet_splithttp_config_proto_msgTypes[2]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *Multiplexing) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*Multiplexing) ProtoMessage() {}
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func (x *Multiplexing) ProtoReflect() protoreflect.Message {
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mi := &file_transport_internet_splithttp_config_proto_msgTypes[2]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use Multiplexing.ProtoReflect.Descriptor instead.
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func (*Multiplexing) Descriptor() ([]byte, []int) {
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return file_transport_internet_splithttp_config_proto_rawDescGZIP(), []int{2}
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}
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func (x *Multiplexing) GetMaxConnections() *RandRangeConfig {
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if x != nil {
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return x.MaxConnections
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}
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return nil
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}
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func (x *Multiplexing) GetMaxConcurrency() *RandRangeConfig {
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if x != nil {
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return x.MaxConcurrency
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}
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return nil
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}
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func (x *Multiplexing) GetCMaxReuseTimes() *RandRangeConfig {
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if x != nil {
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return x.CMaxReuseTimes
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}
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return nil
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}
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func (x *Multiplexing) GetCMaxLifetimeMs() *RandRangeConfig {
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if x != nil {
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return x.CMaxLifetimeMs
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}
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return nil
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}
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var File_transport_internet_splithttp_config_proto protoreflect.FileDescriptor
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var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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@ -185,8 +264,8 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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|
||||
0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0xaa, 0x02, 0x21, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x54, 0x72,
|
||||
0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
|
||||
0x2e, 0x53, 0x70, 0x6c, 0x69, 0x74, 0x48, 0x74, 0x74, 0x70, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
|
||||
0x6f, 0x33,
|
||||
0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e,
|
||||
0x64, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d,
|
||||
0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x5a, 0x0a, 0x0e,
|
||||
0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d, 0x73, 0x18, 0x04,
|
||||
0x20, 0x01, 0x28, 0x0b, 0x32, 0x32, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e,
|
||||
0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73,
|
||||
0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x64, 0x52, 0x61, 0x6e,
|
||||
0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69,
|
||||
0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d, 0x73, 0x42, 0x85, 0x01, 0x0a, 0x25, 0x63, 0x6f, 0x6d,
|
||||
0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e,
|
||||
0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74,
|
||||
0x74, 0x70, 0x50, 0x01, 0x5a, 0x36, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
|
||||
0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f,
|
||||
0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e,
|
||||
0x65, 0x74, 0x2f, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0xaa, 0x02, 0x21, 0x58,
|
||||
0x72, 0x61, 0x79, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e,
|
||||
0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x70, 0x6c, 0x69, 0x74, 0x48, 0x74, 0x74, 0x70,
|
||||
0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
|
||||
}
|
||||
|
||||
var (
|
||||
@ -252,23 +359,29 @@ func file_transport_internet_splithttp_config_proto_rawDescGZIP() []byte {
|
||||
return file_transport_internet_splithttp_config_proto_rawDescData
|
||||
}
|
||||
|
||||
var file_transport_internet_splithttp_config_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
|
||||
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
|
||||
nil, // 2: xray.transport.internet.splithttp.Config.HeaderEntry
|
||||
(*Multiplexing)(nil), // 2: xray.transport.internet.splithttp.Multiplexing
|
||||
nil, // 3: xray.transport.internet.splithttp.Config.HeaderEntry
|
||||
}
|
||||
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
|
||||
3, // 0: xray.transport.internet.splithttp.Config.header:type_name -> xray.transport.internet.splithttp.Config.HeaderEntry
|
||||
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
|
||||
1, // 4: xray.transport.internet.splithttp.Config.xPaddingBytes:type_name -> xray.transport.internet.splithttp.RandRangeConfig
|
||||
5, // [5:5] is the sub-list for method output_type
|
||||
5, // [5:5] is the sub-list for method input_type
|
||||
5, // [5:5] is the sub-list for extension type_name
|
||||
5, // [5:5] is the sub-list for extension extendee
|
||||
0, // [0:5] is the sub-list for field type_name
|
||||
2, // 5: xray.transport.internet.splithttp.Config.xmux:type_name -> xray.transport.internet.splithttp.Multiplexing
|
||||
1, // 6: xray.transport.internet.splithttp.Multiplexing.maxConnections:type_name -> xray.transport.internet.splithttp.RandRangeConfig
|
||||
1, // 7: xray.transport.internet.splithttp.Multiplexing.maxConcurrency: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
|
||||
}
|
||||
|
||||
func init() { file_transport_internet_splithttp_config_proto_init() }
|
||||
@ -301,6 +414,18 @@ func file_transport_internet_splithttp_config_proto_init() {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
file_transport_internet_splithttp_config_proto_msgTypes[2].Exporter = func(v any, i int) any {
|
||||
switch v := v.(*Multiplexing); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
@ -308,7 +433,7 @@ func file_transport_internet_splithttp_config_proto_init() {
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_transport_internet_splithttp_config_proto_rawDesc,
|
||||
NumEnums: 0,
|
||||
NumMessages: 3,
|
||||
NumMessages: 4,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
|
||||
@ -15,9 +15,17 @@ message Config {
|
||||
RandRangeConfig scMinPostsIntervalMs = 6;
|
||||
bool noSSEHeader = 7;
|
||||
RandRangeConfig xPaddingBytes = 8;
|
||||
Multiplexing xmux = 9;
|
||||
}
|
||||
|
||||
message RandRangeConfig {
|
||||
int32 from = 1;
|
||||
int32 to = 2;
|
||||
}
|
||||
|
||||
message Multiplexing {
|
||||
RandRangeConfig maxConnections = 1;
|
||||
RandRangeConfig maxConcurrency = 2;
|
||||
RandRangeConfig cMaxReuseTimes = 3;
|
||||
RandRangeConfig cMaxLifetimeMs = 4;
|
||||
}
|
||||
|
||||
@ -11,6 +11,7 @@ type splitConn struct {
|
||||
reader io.ReadCloser
|
||||
remoteAddr net.Addr
|
||||
localAddr net.Addr
|
||||
onClose func()
|
||||
}
|
||||
|
||||
func (c *splitConn) Write(b []byte) (int, error) {
|
||||
@ -22,6 +23,10 @@ func (c *splitConn) Read(b []byte) (int, error) {
|
||||
}
|
||||
|
||||
func (c *splitConn) Close() error {
|
||||
if c.onClose != nil {
|
||||
c.onClose()
|
||||
}
|
||||
|
||||
err := c.writer.Close()
|
||||
err2 := c.reader.Close()
|
||||
if err != nil {
|
||||
|
||||
@ -41,32 +41,51 @@ type dialerConf struct {
|
||||
}
|
||||
|
||||
var (
|
||||
globalDialerMap map[dialerConf]DialerClient
|
||||
globalDialerMap map[dialerConf]*muxManager
|
||||
globalDialerAccess sync.Mutex
|
||||
)
|
||||
|
||||
func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *internet.MemoryStreamConfig) DialerClient {
|
||||
func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *internet.MemoryStreamConfig) (DialerClient, *muxResource) {
|
||||
if browser_dialer.HasBrowserDialer() {
|
||||
return &BrowserDialerClient{}
|
||||
return &BrowserDialerClient{}, nil
|
||||
}
|
||||
|
||||
tlsConfig := tls.ConfigFromStreamSettings(streamSettings)
|
||||
isH2 := tlsConfig != nil && !(len(tlsConfig.NextProtocol) == 1 && tlsConfig.NextProtocol[0] == "http/1.1")
|
||||
isH3 := tlsConfig != nil && (len(tlsConfig.NextProtocol) == 1 && tlsConfig.NextProtocol[0] == "h3")
|
||||
|
||||
globalDialerAccess.Lock()
|
||||
defer globalDialerAccess.Unlock()
|
||||
|
||||
if globalDialerMap == nil {
|
||||
globalDialerMap = make(map[dialerConf]DialerClient)
|
||||
globalDialerMap = make(map[dialerConf]*muxManager)
|
||||
}
|
||||
|
||||
key := dialerConf{dest, streamSettings}
|
||||
|
||||
muxManager, found := globalDialerMap[key]
|
||||
|
||||
if !found {
|
||||
transportConfig := streamSettings.ProtocolSettings.(*Config)
|
||||
var mux Multiplexing
|
||||
if transportConfig.Xmux != nil {
|
||||
mux = *transportConfig.Xmux
|
||||
}
|
||||
|
||||
muxManager = NewMuxManager(mux, func() interface{} {
|
||||
return createHTTPClient(dest, streamSettings)
|
||||
})
|
||||
globalDialerMap[key] = muxManager
|
||||
}
|
||||
|
||||
res := muxManager.GetResource(ctx)
|
||||
return res.Resource.(DialerClient), res
|
||||
}
|
||||
|
||||
func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStreamConfig) DialerClient {
|
||||
tlsConfig := tls.ConfigFromStreamSettings(streamSettings)
|
||||
isH2 := tlsConfig != nil && !(len(tlsConfig.NextProtocol) == 1 && tlsConfig.NextProtocol[0] == "http/1.1")
|
||||
isH3 := tlsConfig != nil && (len(tlsConfig.NextProtocol) == 1 && tlsConfig.NextProtocol[0] == "h3")
|
||||
|
||||
if isH3 {
|
||||
dest.Network = net.Network_UDP
|
||||
}
|
||||
if client, found := globalDialerMap[dialerConf{dest, streamSettings}]; found {
|
||||
return client
|
||||
}
|
||||
|
||||
var gotlsConfig *gotls.Config
|
||||
|
||||
@ -74,6 +93,8 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
gotlsConfig = tlsConfig.GetTLSConfig(tls.WithDestination(dest))
|
||||
}
|
||||
|
||||
transportConfig := streamSettings.ProtocolSettings.(*Config)
|
||||
|
||||
dialContext := func(ctxInner context.Context) (net.Conn, error) {
|
||||
conn, err := internet.DialSystem(ctxInner, dest, streamSettings.SocketSettings)
|
||||
if err != nil {
|
||||
@ -94,8 +115,7 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
return conn, nil
|
||||
}
|
||||
|
||||
var downloadTransport http.RoundTripper
|
||||
var uploadTransport http.RoundTripper
|
||||
var transport http.RoundTripper
|
||||
|
||||
if isH3 {
|
||||
quicConfig := &quic.Config{
|
||||
@ -107,7 +127,7 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
MaxIncomingStreams: -1,
|
||||
KeepAlivePeriod: h3KeepalivePeriod,
|
||||
}
|
||||
roundTripper := &http3.RoundTripper{
|
||||
transport = &http3.RoundTripper{
|
||||
QUICConfig: quicConfig,
|
||||
TLSClientConfig: gotlsConfig,
|
||||
Dial: func(ctx context.Context, addr string, tlsCfg *gotls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
|
||||
@ -147,23 +167,20 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
return quic.DialEarly(ctx, udpConn, udpAddr, tlsCfg, cfg)
|
||||
},
|
||||
}
|
||||
downloadTransport = roundTripper
|
||||
uploadTransport = roundTripper
|
||||
} else if isH2 {
|
||||
downloadTransport = &http2.Transport{
|
||||
transport = &http2.Transport{
|
||||
DialTLSContext: func(ctxInner context.Context, network string, addr string, cfg *gotls.Config) (net.Conn, error) {
|
||||
return dialContext(ctxInner)
|
||||
},
|
||||
IdleConnTimeout: connIdleTimeout,
|
||||
ReadIdleTimeout: h2KeepalivePeriod,
|
||||
}
|
||||
uploadTransport = downloadTransport
|
||||
} else {
|
||||
httpDialContext := func(ctxInner context.Context, network string, addr string) (net.Conn, error) {
|
||||
return dialContext(ctxInner)
|
||||
}
|
||||
|
||||
downloadTransport = &http.Transport{
|
||||
transport = &http.Transport{
|
||||
DialTLSContext: httpDialContext,
|
||||
DialContext: httpDialContext,
|
||||
IdleConnTimeout: connIdleTimeout,
|
||||
@ -171,17 +188,12 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
// http.Client and our custom dial context.
|
||||
DisableKeepAlives: true,
|
||||
}
|
||||
// we use uploadRawPool for that
|
||||
uploadTransport = nil
|
||||
}
|
||||
|
||||
client := &DefaultDialerClient{
|
||||
transportConfig: streamSettings.ProtocolSettings.(*Config),
|
||||
download: &http.Client{
|
||||
Transport: downloadTransport,
|
||||
},
|
||||
upload: &http.Client{
|
||||
Transport: uploadTransport,
|
||||
transportConfig: transportConfig,
|
||||
client: &http.Client{
|
||||
Transport: transport,
|
||||
},
|
||||
isH2: isH2,
|
||||
isH3: isH3,
|
||||
@ -189,7 +201,6 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
|
||||
dialUploadConn: dialContext,
|
||||
}
|
||||
|
||||
globalDialerMap[dialerConf{dest, streamSettings}] = client
|
||||
return client
|
||||
}
|
||||
|
||||
@ -223,7 +234,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
|
||||
requestURL.Path = transportConfiguration.GetNormalizedPath() + sessionIdUuid.String()
|
||||
requestURL.RawQuery = transportConfiguration.GetNormalizedQuery()
|
||||
|
||||
httpClient := getHTTPClient(ctx, dest, streamSettings)
|
||||
httpClient, muxResource := getHTTPClient(ctx, dest, streamSettings)
|
||||
|
||||
maxUploadSize := scMaxEachPostBytes.roll()
|
||||
// WithSizeLimit(0) will still allow single bytes to pass, and a lot of
|
||||
@ -231,7 +242,15 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
|
||||
// uploadWriter wrapper, exact size limits can be enforced
|
||||
uploadPipeReader, uploadPipeWriter := pipe.New(pipe.WithSizeLimit(maxUploadSize - 1))
|
||||
|
||||
if muxResource != nil {
|
||||
muxResource.OpenRequests.Add(1)
|
||||
}
|
||||
|
||||
go func() {
|
||||
if muxResource != nil {
|
||||
defer muxResource.OpenRequests.Add(-1)
|
||||
}
|
||||
|
||||
requestsLimiter := semaphore.New(int(scMaxConcurrentPosts.roll()))
|
||||
var requestCounter int64
|
||||
|
||||
|
||||
102
transport/internet/splithttp/mux.go
Normal file
102
transport/internet/splithttp/mux.go
Normal file
@ -0,0 +1,102 @@
|
||||
package splithttp
|
||||
|
||||
import (
|
||||
"context"
|
||||
"math/rand"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/xtls/xray-core/common/errors"
|
||||
)
|
||||
|
||||
type muxResource struct {
|
||||
Resource interface{}
|
||||
OpenRequests atomic.Int32
|
||||
leftUsage int32
|
||||
expirationTime time.Time
|
||||
}
|
||||
|
||||
type muxManager struct {
|
||||
newResourceFn func() interface{}
|
||||
config Multiplexing
|
||||
concurrency int32
|
||||
connections int32
|
||||
instances []*muxResource
|
||||
}
|
||||
|
||||
func NewMuxManager(config Multiplexing, newResource func() interface{}) *muxManager {
|
||||
return &muxManager{
|
||||
config: config,
|
||||
concurrency: config.GetNormalizedMaxConcurrency().roll(),
|
||||
connections: config.GetNormalizedMaxConnections().roll(),
|
||||
newResourceFn: newResource,
|
||||
instances: make([]*muxResource, 0),
|
||||
}
|
||||
}
|
||||
|
||||
func (m *muxManager) GetResource(ctx context.Context) *muxResource {
|
||||
m.removeExpiredConnections(ctx)
|
||||
|
||||
if m.connections > 0 && len(m.instances) < int(m.connections) {
|
||||
errors.LogDebug(ctx, "xmux: creating client, connections=", len(m.instances))
|
||||
return m.newResource()
|
||||
}
|
||||
|
||||
if len(m.instances) == 0 {
|
||||
errors.LogDebug(ctx, "xmux: creating client because instances is empty, connections=", len(m.instances))
|
||||
return m.newResource()
|
||||
}
|
||||
|
||||
clients := make([]*muxResource, 0)
|
||||
if m.concurrency > 0 {
|
||||
for _, client := range m.instances {
|
||||
openRequests := client.OpenRequests.Load()
|
||||
if openRequests < m.concurrency {
|
||||
clients = append(clients, client)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
clients = m.instances
|
||||
}
|
||||
|
||||
if len(clients) == 0 {
|
||||
errors.LogDebug(ctx, "xmux: creating client because concurrency was hit, total clients=", len(m.instances))
|
||||
return m.newResource()
|
||||
}
|
||||
|
||||
client := clients[rand.Intn(len(clients))]
|
||||
if client.leftUsage > 0 {
|
||||
client.leftUsage -= 1
|
||||
}
|
||||
return client
|
||||
}
|
||||
|
||||
func (m *muxManager) newResource() *muxResource {
|
||||
leftUsage := int32(-1)
|
||||
if x := m.config.GetNormalizedCMaxReuseTimes().roll(); x > 0 {
|
||||
leftUsage = x - 1
|
||||
}
|
||||
expirationTime := time.UnixMilli(0)
|
||||
if x := m.config.GetNormalizedCMaxLifetimeMs().roll(); x > 0 {
|
||||
expirationTime = time.Now().Add(time.Duration(x) * time.Millisecond)
|
||||
}
|
||||
|
||||
client := &muxResource{
|
||||
Resource: m.newResourceFn(),
|
||||
leftUsage: leftUsage,
|
||||
expirationTime: expirationTime,
|
||||
}
|
||||
m.instances = append(m.instances, client)
|
||||
return client
|
||||
}
|
||||
|
||||
func (m *muxManager) removeExpiredConnections(ctx context.Context) {
|
||||
for i := 0; i < len(m.instances); i++ {
|
||||
client := m.instances[i]
|
||||
if client.leftUsage == 0 || (client.expirationTime != time.UnixMilli(0) && time.Now().After(client.expirationTime)) {
|
||||
errors.LogDebug(ctx, "xmux: removing client, leftUsage = ", client.leftUsage, ", expirationTime = ", client.expirationTime)
|
||||
m.instances = append(m.instances[:i], m.instances[i+1:]...)
|
||||
i--
|
||||
}
|
||||
}
|
||||
}
|
||||
88
transport/internet/splithttp/mux_test.go
Normal file
88
transport/internet/splithttp/mux_test.go
Normal file
@ -0,0 +1,88 @@
|
||||
package splithttp_test
|
||||
|
||||
import (
|
||||
"context"
|
||||
"testing"
|
||||
|
||||
. "github.com/xtls/xray-core/transport/internet/splithttp"
|
||||
)
|
||||
|
||||
type fakeRoundTripper struct{}
|
||||
|
||||
func TestMaxConnections(t *testing.T) {
|
||||
config := Multiplexing{
|
||||
MaxConnections: &RandRangeConfig{From: 4, To: 4},
|
||||
}
|
||||
|
||||
mux := NewMuxManager(config, func() interface{} {
|
||||
return &fakeRoundTripper{}
|
||||
})
|
||||
|
||||
clients := make(map[interface{}]struct{})
|
||||
for i := 0; i < 8; i++ {
|
||||
clients[mux.GetResource(context.Background())] = struct{}{}
|
||||
}
|
||||
|
||||
if len(clients) != 4 {
|
||||
t.Error("did not get 4 distinct clients, got ", len(clients))
|
||||
}
|
||||
}
|
||||
|
||||
func TestCMaxReuseTimes(t *testing.T) {
|
||||
config := Multiplexing{
|
||||
CMaxReuseTimes: &RandRangeConfig{From: 2, To: 2},
|
||||
}
|
||||
|
||||
mux := NewMuxManager(config, func() interface{} {
|
||||
return &fakeRoundTripper{}
|
||||
})
|
||||
|
||||
clients := make(map[interface{}]struct{})
|
||||
for i := 0; i < 64; i++ {
|
||||
clients[mux.GetResource(context.Background())] = struct{}{}
|
||||
}
|
||||
|
||||
if len(clients) != 32 {
|
||||
t.Error("did not get 32 distinct clients, got ", len(clients))
|
||||
}
|
||||
}
|
||||
|
||||
func TestMaxConcurrency(t *testing.T) {
|
||||
config := Multiplexing{
|
||||
MaxConcurrency: &RandRangeConfig{From: 2, To: 2},
|
||||
}
|
||||
|
||||
mux := NewMuxManager(config, func() interface{} {
|
||||
return &fakeRoundTripper{}
|
||||
})
|
||||
|
||||
clients := make(map[interface{}]struct{})
|
||||
for i := 0; i < 64; i++ {
|
||||
client := mux.GetResource(context.Background())
|
||||
client.OpenRequests.Add(1)
|
||||
clients[client] = struct{}{}
|
||||
}
|
||||
|
||||
if len(clients) != 32 {
|
||||
t.Error("did not get 32 distinct clients, got ", len(clients))
|
||||
}
|
||||
}
|
||||
|
||||
func TestDefault(t *testing.T) {
|
||||
config := Multiplexing{}
|
||||
|
||||
mux := NewMuxManager(config, func() interface{} {
|
||||
return &fakeRoundTripper{}
|
||||
})
|
||||
|
||||
clients := make(map[interface{}]struct{})
|
||||
for i := 0; i < 64; i++ {
|
||||
client := mux.GetResource(context.Background())
|
||||
client.OpenRequests.Add(1)
|
||||
clients[client] = struct{}{}
|
||||
}
|
||||
|
||||
if len(clients) != 1 {
|
||||
t.Error("did not get 1 distinct clients, got ", len(clients))
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user