Add header and method support to http2 transport (#755)

Co-authored-by: Shelikhoo <xiaokangwang@outlook.com>

infra/conf/transport_internet.go

@@ -14,6 +14,7 @@ import (
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/domainsocket"
+	httpheader "github.com/xtls/xray-core/transport/internet/headers/http"
 	"github.com/xtls/xray-core/transport/internet/http"
 	"github.com/xtls/xray-core/transport/internet/kcp"
 	"github.com/xtls/xray-core/transport/internet/quic"
@@ -184,6 +185,8 @@ type HTTPConfig struct {
 	Path               string                 `json:"path"`
 	ReadIdleTimeout    int32                  `json:"read_idle_timeout"`
 	HealthCheckTimeout int32                  `json:"health_check_timeout"`
+	Method             string                 `json:"method"`
+	Headers            map[string]*StringList `json:"headers"`
 }
 
 // Build implements Buildable.
@@ -202,6 +205,23 @@ func (c *HTTPConfig) Build() (proto.Message, error) {
 	if c.Host != nil {
 		config.Host = []string(*c.Host)
 	}
+	if c.Method != "" {
+		config.Method = c.Method
+	}
+	if len(c.Headers) > 0 {
+		config.Header = make([]*httpheader.Header, 0, len(c.Headers))
+		headerNames := sortMapKeys(c.Headers)
+		for _, key := range headerNames {
+			value := c.Headers[key]
+			if value == nil {
+				return nil, newError("empty HTTP header value: " + key).AtError()
+			}
+			config.Header = append(config.Header, &httpheader.Header{
+				Name:  key,
+				Value: append([]string(nil), (*value)...),
+			})
+		}
+	}
 	return config, nil
 }
 

transport/internet/http/config.pb.go

@@ -7,6 +7,7 @@
 package http
 
 import (
+	http "github.com/xtls/xray-core/transport/internet/headers/http"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -29,6 +30,8 @@ type Config struct {
 	Path               string         `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
 	IdleTimeout        int32          `protobuf:"varint,3,opt,name=idle_timeout,json=idleTimeout,proto3" json:"idle_timeout,omitempty"`
 	HealthCheckTimeout int32          `protobuf:"varint,4,opt,name=health_check_timeout,json=healthCheckTimeout,proto3" json:"health_check_timeout,omitempty"`
+	Method             string         `protobuf:"bytes,5,opt,name=method,proto3" json:"method,omitempty"`
+	Header             []*http.Header `protobuf:"bytes,6,rep,name=header,proto3" json:"header,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -91,6 +94,20 @@ func (x *Config) GetHealthCheckTimeout() int32 {
 	return 0
 }
 
+func (x *Config) GetMethod() string {
+	if x != nil {
+		return x.Method
+	}
+	return ""
+}
+
+func (x *Config) GetHeader() []*http.Header {
+	if x != nil {
+		return x.Header
+	}
+	return nil
+}
+
 var File_transport_internet_http_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_http_config_proto_rawDesc = []byte{
@@ -98,23 +115,32 @@ var file_transport_internet_http_config_proto_rawDesc = []byte{
 	0x72, 0x6e, 0x65, 0x74, 0x2f, 0x68, 0x74, 0x74, 0x70, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67,
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 }
 
 var (
@@ -132,13 +158,15 @@ func file_transport_internet_http_config_proto_rawDescGZIP() []byte {
 var file_transport_internet_http_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
 var file_transport_internet_http_config_proto_goTypes = []interface{}{
 	(*Config)(nil),      // 0: xray.transport.internet.http.Config
+	(*http.Header)(nil), // 1: xray.transport.internet.headers.http.Header
 }
 var file_transport_internet_http_config_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
+	1, // 0: xray.transport.internet.http.Config.header:type_name -> xray.transport.internet.headers.http.Header
-	0, // [0:0] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension extendee
+	1, // [1:1] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for field type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_transport_internet_http_config_proto_init() }

transport/internet/http/config.proto

@@ -6,9 +6,13 @@ option go_package = "github.com/xtls/xray-core/transport/internet/http";
 option java_package = "com.xray.transport.internet.http";
 option java_multiple_files = true;
 
+import "transport/internet/headers/http/config.proto";
+
 message Config {
   repeated string host = 1;
   string path = 2;
   int32 idle_timeout = 3;
   int32 health_check_timeout = 4;
+  string method = 5;
+  repeated xray.transport.internet.headers.http.Header header = 6;
 }

transport/internet/http/dialer.go

@@ -123,8 +123,22 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 	opts := pipe.OptionsFromContext(ctx)
 	preader, pwriter := pipe.New(opts...)
 	breader := &buf.BufferedReader{Reader: preader}
+
+	httpMethod := "PUT"
+	if httpSettings.Method != "" {
+		httpMethod = httpSettings.Method
+	}
+
+	httpHeaders := make(http.Header)
+
+	for _, httpHeader := range httpSettings.Header {
+		for _, httpHeaderValue := range httpHeader.Value {
+			httpHeaders.Set(httpHeader.Name, httpHeaderValue)
+		}
+	}
+
 	request := &http.Request{
-		Method: "PUT",
+		Method: httpMethod,
 		Host:   httpSettings.getRandomHost(),
 		Body:   breader,
 		URL: &url.URL{
@@ -135,7 +149,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 		Proto:      "HTTP/2",
 		ProtoMajor: 2,
 		ProtoMinor: 0,
-		Header:     make(http.Header),
+		Header:     httpHeaders,
 	}
 	// Disable any compression method from server.
 	request.Header.Set("Accept-Encoding", "identity")

transport/internet/http/hub.go

@@ -70,6 +70,13 @@ func (l *Listener) ServeHTTP(writer http.ResponseWriter, request *http.Request)
 	}
 
 	writer.Header().Set("Cache-Control", "no-store")
+
+	for _, httpHeader := range l.config.Header {
+		for _, httpHeaderValue := range httpHeader.Value {
+			writer.Header().Set(httpHeader.Name, httpHeaderValue)
+		}
+	}
+
 	writer.WriteHeader(200)
 	if f, ok := writer.(http.Flusher); ok {
 		f.Flush()