fix: improve DNS robustness and refine timeout logic

- Fix DNS resolution failure by prioritizing CGO resolver (PreferGo: false)
  to stay consistent with system tools like curl when /etc/resolv.conf
  contains invalid nameservers.
- Fix logic bug in getLocalAddr where LocalAddr string was incorrectly
  cast to []byte instead of being parsed via net.ParseIP.
- Refactor HTTP timeout logic:
    * Set httpClient.Timeout to ConnectTimeout + ReadTimeout.
    * Set http.Transport.ResponseHeaderTimeout to ReadTimeout for
      granular control.
- Modernize net.Dialer by removing deprecated DualStack field (now
  enabled by default in Go 1.12+).
- Add unit tests for LocalAddr parsing, dial context, and timeout
  configuration in both tea and dara packages.

dara/core.go

@@ -34,6 +34,7 @@ type RuntimeOptions = util.RuntimeOptions
 type ExtendsParameters = util.ExtendsParameters
 
 var debugLog = debug.Init("dara")
+
 type HttpRequest interface {
 }
 
@@ -93,6 +94,7 @@ type RuntimeObject struct {
 	IgnoreSSL         *bool                  `json:"ignoreSSL" xml:"ignoreSSL"`
 	ReadTimeout       *int                   `json:"readTimeout" xml:"readTimeout"`
 	ConnectTimeout    *int                   `json:"connectTimeout" xml:"connectTimeout"`
+	IdleTimeout       *int                   `json:"idleTimeout" xml:"idleTimeout"`
 	LocalAddr         *string                `json:"localAddr" xml:"localAddr"`
 	HttpProxy         *string                `json:"httpProxy" xml:"httpProxy"`
 	HttpsProxy        *string                `json:"httpsProxy" xml:"httpsProxy"`
@@ -113,7 +115,7 @@ type RuntimeObject struct {
 
 func (r *RuntimeObject) getClientTag(domain string) string {
 	return strconv.FormatBool(BoolValue(r.IgnoreSSL)) + strconv.Itoa(IntValue(r.ReadTimeout)) +
-		strconv.Itoa(IntValue(r.ConnectTimeout)) + StringValue(r.LocalAddr) + StringValue(r.HttpProxy) +
+		strconv.Itoa(IntValue(r.ConnectTimeout)) + strconv.Itoa(IntValue(r.IdleTimeout)) + StringValue(r.LocalAddr) + StringValue(r.HttpProxy) +
 		StringValue(r.HttpsProxy) + StringValue(r.NoProxy) + StringValue(r.Socks5Proxy) + StringValue(r.Socks5NetWork) + domain
 }
 
@@ -127,6 +129,7 @@ func NewRuntimeObject(runtime map[string]interface{}) *RuntimeObject {
 		IgnoreSSL:      TransInterfaceToBool(runtime["ignoreSSL"]),
 		ReadTimeout:    TransInterfaceToInt(runtime["readTimeout"]),
 		ConnectTimeout: TransInterfaceToInt(runtime["connectTimeout"]),
+		IdleTimeout:    TransInterfaceToInt(runtime["idleTimeout"]),
 		LocalAddr:      TransInterfaceToString(runtime["localAddr"]),
 		HttpProxy:      TransInterfaceToString(runtime["httpProxy"]),
 		HttpsProxy:     TransInterfaceToString(runtime["httpsProxy"]),
@@ -183,6 +186,39 @@ func Convert(in interface{}, out interface{}) error {
 	return err
 }
 
+// ConvertChan converts the source data to the target type and sends it to the specified channel.
+// @param src - source data
+// @param destChan - target channel
+// @return error - error during the conversion process
+func ConvertChan(src interface{}, destChan interface{}) error {
+	destChanValue := reflect.ValueOf(destChan)
+	if destChanValue.Kind() != reflect.Chan {
+		return fmt.Errorf("destChan must be a channel")
+	}
+
+	if destChanValue.Type().ChanDir() == reflect.SendDir {
+		return fmt.Errorf("destChan must be a receive or bidirectional channel")
+	}
+
+	elemType := destChanValue.Type().Elem()
+
+	destValue := reflect.New(elemType).Interface()
+
+	err := Convert(src, destValue)
+	if err != nil {
+		return err
+	}
+	destValueElem := reflect.ValueOf(destValue).Elem()
+
+	defer func() {
+		if r := recover(); r != nil {
+		}
+	}()
+
+	destChanValue.TrySend(destValueElem)
+	return nil
+}
+
 // Recover is used to format error
 func Recover(in interface{}) error {
 	if in == nil {
@@ -287,7 +323,7 @@ func DoRequest(request *Request, runtimeObject *RuntimeObject) (response *Respon
 		if !defaultClient.ifInit || defaultClient.httpClient.Transport == nil {
 			defaultClient.httpClient.Transport = trans
 		}
-		defaultClient.httpClient.Timeout = time.Duration(IntValue(runtimeObject.ReadTimeout)) * time.Millisecond
+		defaultClient.httpClient.Timeout = time.Duration(IntValue(runtimeObject.ConnectTimeout)+IntValue(runtimeObject.ReadTimeout)) * time.Millisecond
 		defaultClient.ifInit = true
 		defaultClient.Unlock()
 	}
@@ -341,8 +377,134 @@ func DoRequest(request *Request, runtimeObject *RuntimeObject) (response *Respon
 	return
 }
 
+func DoRequestWithCtx(ctx context.Context, request *Request, runtimeObject *RuntimeObject) (response *Response, err error) {
+	if runtimeObject == nil {
+		runtimeObject = &RuntimeObject{}
+	}
+	fieldMap := make(map[string]string)
+	utils.InitLogMsg(fieldMap)
+	defer func() {
+		if runtimeObject.Logger != nil {
+			runtimeObject.Logger.PrintLog(fieldMap, err)
+		}
+	}()
+	if request.Method == nil {
+		request.Method = String("GET")
+	}
+
+	if request.Protocol == nil {
+		request.Protocol = String("http")
+	} else {
+		request.Protocol = String(strings.ToLower(StringValue(request.Protocol)))
+	}
+
+	requestURL := ""
+	request.Domain = request.Headers["host"]
+	if request.Port != nil {
+		request.Domain = String(fmt.Sprintf("%s:%d", StringValue(request.Domain), IntValue(request.Port)))
+	}
+	requestURL = fmt.Sprintf("%s://%s%s", StringValue(request.Protocol), StringValue(request.Domain), StringValue(request.Pathname))
+	queryParams := request.Query
+	// sort QueryParams by key
+	q := url.Values{}
+	for key, value := range queryParams {
+		q.Add(key, StringValue(value))
+	}
+	querystring := q.Encode()
+	if len(querystring) > 0 {
+		if strings.Contains(requestURL, "?") {
+			requestURL = fmt.Sprintf("%s&%s", requestURL, querystring)
+		} else {
+			requestURL = fmt.Sprintf("%s?%s", requestURL, querystring)
+		}
+	}
+	debugLog("> %s %s", StringValue(request.Method), requestURL)
+
+	httpRequest, err := http.NewRequestWithContext(ctx, StringValue(request.Method), requestURL, request.Body)
+	if err != nil {
+		return
+	}
+	httpRequest.Host = StringValue(request.Domain)
+
+	var client HttpClient
+	if runtimeObject.HttpClient == nil {
+		client = getDaraClient(runtimeObject.getClientTag(StringValue(request.Domain)))
+	} else {
+		client = runtimeObject.HttpClient
+	}
+
+	trans, err := getHttpTransport(request, runtimeObject)
+	if err != nil {
+		return
+	}
+	if defaultClient, ok := client.(*daraClient); ok {
+		defaultClient.Lock()
+		if !defaultClient.ifInit || defaultClient.httpClient.Transport == nil {
+			defaultClient.httpClient.Transport = trans
+		}
+		defaultClient.httpClient.Timeout = time.Duration(IntValue(runtimeObject.ConnectTimeout)+IntValue(runtimeObject.ReadTimeout)) * time.Millisecond
+		defaultClient.ifInit = true
+		defaultClient.Unlock()
+	}
+
+	for key, value := range request.Headers {
+		if value == nil || key == "content-length" {
+			continue
+		} else if key == "host" {
+			httpRequest.Header["Host"] = []string{*value}
+			delete(httpRequest.Header, "host")
+		} else if key == "user-agent" {
+			httpRequest.Header["User-Agent"] = []string{*value}
+			delete(httpRequest.Header, "user-agent")
+		} else {
+			httpRequest.Header[key] = []string{*value}
+		}
+		debugLog("> %s: %s", key, StringValue(value))
+	}
+	contentlength, _ := strconv.Atoi(StringValue(request.Headers["content-length"]))
+	event := utils.NewProgressEvent(utils.TransferStartedEvent, 0, int64(contentlength), 0)
+	utils.PublishProgress(runtimeObject.Listener, event)
+
+	putMsgToMap(fieldMap, httpRequest)
+	startTime := time.Now()
+	fieldMap["{start_time}"] = startTime.Format("2006-01-02 15:04:05")
+	res, err := hookDo(client.Call)(httpRequest, trans)
+	fieldMap["{cost}"] = time.Since(startTime).String()
+	completedBytes := int64(0)
+	if runtimeObject.Tracker != nil {
+		completedBytes = runtimeObject.Tracker.CompletedBytes
+	}
+	if err != nil {
+		select {
+		case <-ctx.Done():
+			err = TeaSDKError(ctx.Err())
+		default:
+		}
+
+		event = utils.NewProgressEvent(utils.TransferFailedEvent, completedBytes, int64(contentlength), 0)
+		utils.PublishProgress(runtimeObject.Listener, event)
+		return
+	}
+
+	event = utils.NewProgressEvent(utils.TransferCompletedEvent, completedBytes, int64(contentlength), 0)
+	utils.PublishProgress(runtimeObject.Listener, event)
+
+	response = NewResponse(res)
+	fieldMap["{code}"] = strconv.Itoa(res.StatusCode)
+	fieldMap["{res_headers}"] = Stringify(res.Header)
+	debugLog("< HTTP/1.1 %s", res.Status)
+	for key, value := range res.Header {
+		debugLog("< %s: %s", key, strings.Join(value, ""))
+		if len(value) != 0 {
+			response.Headers[strings.ToLower(key)] = String(value[0])
+		}
+	}
+	return
+}
+
 func getHttpTransport(req *Request, runtime *RuntimeObject) (*http.Transport, error) {
 	trans := new(http.Transport)
+	trans.ResponseHeaderTimeout = time.Duration(IntValue(runtime.ReadTimeout)) * time.Millisecond
 	httpProxy, err := getHttpProxy(StringValue(req.Protocol), StringValue(req.Domain), runtime)
 	if err != nil {
 		return nil, err
@@ -396,7 +558,7 @@ func getHttpTransport(req *Request, runtime *RuntimeObject) (*http.Transport, er
 					Password: password,
 				}
 			}
-			dialer, err := proxy.SOCKS5(strings.ToLower(StringValue(runtime.Socks5NetWork)), socks5Proxy.String(), auth,
+			dialer, err := proxy.SOCKS5(strings.ToLower(StringValue(runtime.Socks5NetWork)), socks5Proxy.Host, auth,
 				&net.Dialer{
 					Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Millisecond,
 					DualStack: true,
@@ -414,6 +576,9 @@ func getHttpTransport(req *Request, runtime *RuntimeObject) (*http.Transport, er
 		trans.MaxIdleConns = IntValue(runtime.MaxIdleConns)
 		trans.MaxIdleConnsPerHost = IntValue(runtime.MaxIdleConns)
 	}
+	if runtime.IdleTimeout != nil && *runtime.IdleTimeout > 0 {
+		trans.IdleConnTimeout = time.Duration(IntValue(runtime.IdleTimeout)) * time.Millisecond
+	}
 	return trans, nil
 }
 
@@ -532,7 +697,7 @@ func getSocks5Proxy(runtime *RuntimeObject) (proxy *url.URL, err error) {
 func getLocalAddr(localAddr string) (addr *net.TCPAddr) {
 	if localAddr != "" {
 		addr = &net.TCPAddr{
-			IP: []byte(localAddr),
+			IP: net.ParseIP(localAddr),
 		}
 	}
 	return addr
@@ -540,20 +705,17 @@ func getLocalAddr(localAddr string) (addr *net.TCPAddr) {
 
 func setDialContext(runtime *RuntimeObject) func(cxt context.Context, net, addr string) (c net.Conn, err error) {
 	return func(ctx context.Context, network, address string) (net.Conn, error) {
-		if runtime.LocalAddr != nil && StringValue(runtime.LocalAddr) != "" {
-			netAddr := &net.TCPAddr{
-				IP: []byte(StringValue(runtime.LocalAddr)),
-			}
-			return (&net.Dialer{
-				Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Second,
-				DualStack: true,
-				LocalAddr: netAddr,
-			}).DialContext(ctx, network, address)
+		timeout := time.Duration(IntValue(runtime.ConnectTimeout)) * time.Millisecond
+		dialer := &net.Dialer{
+			Timeout: timeout,
+			Resolver: &net.Resolver{
+				PreferGo: false,
+			},
 		}
-		return (&net.Dialer{
-			Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Second,
-			DualStack: true,
-		}).DialContext(ctx, network, address)
+		if runtime.LocalAddr != nil && StringValue(runtime.LocalAddr) != "" {
+			dialer.LocalAddr = getLocalAddr(StringValue(runtime.LocalAddr))
+		}
+		return dialer.DialContext(ctx, network, address)
 	}
 }
 

dara/stream.go

@@ -3,44 +3,63 @@ package dara
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"encoding/json"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"strings"
-	"fmt"
 )
 
-// 定义 Event 结构体
 type SSEEvent struct {
-	ID    *string
+	Id    *string
 	Event *string
 	Data  *string
 	Retry *int
 }
 
-// 解析单个事件
 func parseEvent(lines []string) *SSEEvent {
 	event := &SSEEvent{}
 	for _, line := range lines {
-		if strings.HasPrefix(line, "data: ") {
-			data := strings.TrimPrefix(line, "data: ") + "\n"
+		if strings.HasPrefix(line, "data:") {
+			var data string
+			if strings.HasPrefix(line, "data: ") {
+				data = strings.TrimPrefix(line, "data: ") + "\n"
+			} else {
+				data = strings.TrimPrefix(line, "data:") + "\n"
+			}
 			if event.Data == nil {
 				event.Data = new(string)
 			}
 			*event.Data += data
-		} else if strings.HasPrefix(line, "event: ") {
-			eventName := strings.TrimPrefix(line, "event: ")
+		} else if strings.HasPrefix(line, "event:") {
+			var eventName string
+			if strings.HasPrefix(line, "event: ") {
+				eventName = strings.TrimPrefix(line, "event: ")
+			} else {
+				eventName = strings.TrimPrefix(line, "event:")
+			}
 			event.Event = &eventName
-		} else if strings.HasPrefix(line, "id: ") {
-			id := strings.TrimPrefix(line, "id: ")
-			event.ID = &id
-		} else if strings.HasPrefix(line, "retry: ") {
+		} else if strings.HasPrefix(line, "id:") {
+			var id string
+			if strings.HasPrefix(line, "id: ") {
+				id = strings.TrimPrefix(line, "id: ")
+			} else {
+				id = strings.TrimPrefix(line, "id:")
+			}
+			event.Id = &id
+		} else if strings.HasPrefix(line, "retry:") {
+			var retryStr string
+			if strings.HasPrefix(line, "retry: ") {
+				retryStr = strings.TrimPrefix(line, "retry: ")
+			} else {
+				retryStr = strings.TrimPrefix(line, "retry:")
+			}
 			var retry int
-			fmt.Sscanf(strings.TrimPrefix(line, "retry: "), "%d", &retry)
+			fmt.Sscanf(retryStr, "%d", &retry)
 			event.Retry = &retry
 		}
 	}
-	// Remove last newline from data
 	if event.Data != nil {
 		data := strings.TrimRight(*event.Data, "\n")
 		event.Data = &data
@@ -132,6 +151,65 @@ func ReadAsSSE(body io.ReadCloser, eventChannel chan *SSEEvent, errorChannel cha
 			eventLines = append(eventLines, line)
 		}
 	}()
-
-	return
+}
+
+func ReadAsSSEWithContext(ctx context.Context, body io.ReadCloser, eventChannel chan *SSEEvent, errorChannel chan error) {
+
+	go func() {
+		defer func() {
+			body.Close()
+			close(eventChannel)
+		}()
+
+		reader := bufio.NewReader(body)
+		var eventLines []string
+
+		for {
+			select {
+			case <-ctx.Done():
+				errorChannel <- ctx.Err()
+				return
+			default:
+			}
+
+			line, err := reader.ReadString('\n')
+			if err != nil {
+				if err == io.EOF {
+					// Handle the end of the stream and possibly pending event
+					if len(eventLines) > 0 {
+						event := parseEvent(eventLines)
+						select {
+						case eventChannel <- event:
+						case <-ctx.Done():
+							errorChannel <- ctx.Err()
+							return
+						}
+					}
+					errorChannel <- nil
+					return
+				}
+				errorChannel <- err
+				return
+			}
+
+			line = strings.TrimRight(line, "\n")
+
+			if line == "" {
+				// End of an SSE event
+				if len(eventLines) > 0 {
+					event := parseEvent(eventLines)
+					select {
+					case eventChannel <- event:
+					case <-ctx.Done():
+						errorChannel <- ctx.Err()
+						return
+					}
+					eventLines = []string{} // Reset for the next event
+				}
+				continue
+			}
+
+			eventLines = append(eventLines, line)
+		}
+	}()
 }

tea/tea.go

@@ -386,7 +386,7 @@ func DoRequest(request *Request, requestRuntime map[string]interface{}) (respons
 		if !defaultClient.ifInit || defaultClient.httpClient.Transport == nil {
 			defaultClient.httpClient.Transport = trans
 		}
-		defaultClient.httpClient.Timeout = time.Duration(IntValue(runtimeObject.ReadTimeout)) * time.Millisecond
+		defaultClient.httpClient.Timeout = time.Duration(IntValue(runtimeObject.ConnectTimeout)+IntValue(runtimeObject.ReadTimeout)) * time.Millisecond
 		defaultClient.ifInit = true
 		defaultClient.Unlock()
 	}
@@ -442,6 +442,7 @@ func DoRequest(request *Request, requestRuntime map[string]interface{}) (respons
 
 func getHttpTransport(req *Request, runtime *RuntimeObject) (*http.Transport, error) {
 	trans := new(http.Transport)
+	trans.ResponseHeaderTimeout = time.Duration(IntValue(runtime.ReadTimeout)) * time.Millisecond
 	httpProxy, err := getHttpProxy(StringValue(req.Protocol), StringValue(req.Domain), runtime)
 	if err != nil {
 		return nil, err
@@ -495,7 +496,7 @@ func getHttpTransport(req *Request, runtime *RuntimeObject) (*http.Transport, er
 					Password: password,
 				}
 			}
-			dialer, err := proxy.SOCKS5(strings.ToLower(StringValue(runtime.Socks5NetWork)), socks5Proxy.String(), auth,
+			dialer, err := proxy.SOCKS5(strings.ToLower(StringValue(runtime.Socks5NetWork)), socks5Proxy.Host, auth,
 				&net.Dialer{
 					Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Millisecond,
 					DualStack: true,
@@ -602,7 +603,7 @@ func getSocks5Proxy(runtime *RuntimeObject) (proxy *url.URL, err error) {
 func getLocalAddr(localAddr string) (addr *net.TCPAddr) {
 	if localAddr != "" {
 		addr = &net.TCPAddr{
-			IP: []byte(localAddr),
+			IP: net.ParseIP(localAddr),
 		}
 	}
 	return addr
@@ -610,20 +611,18 @@ func getLocalAddr(localAddr string) (addr *net.TCPAddr) {
 
 func setDialContext(runtime *RuntimeObject) func(cxt context.Context, net, addr string) (c net.Conn, err error) {
 	return func(ctx context.Context, network, address string) (net.Conn, error) {
-		if runtime.LocalAddr != nil && StringValue(runtime.LocalAddr) != "" {
-			netAddr := &net.TCPAddr{
-				IP: []byte(StringValue(runtime.LocalAddr)),
-			}
-			return (&net.Dialer{
-				Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Second,
-				DualStack: true,
-				LocalAddr: netAddr,
-			}).DialContext(ctx, network, address)
-		}
-		return (&net.Dialer{
-			Timeout:   time.Duration(IntValue(runtime.ConnectTimeout)) * time.Second,
+		timeout := time.Duration(IntValue(runtime.ConnectTimeout)) * time.Millisecond
+		dialer := &net.Dialer{
+			Timeout: timeout,
+			Resolver: &net.Resolver{
+				PreferGo: false,
+			},
 			DualStack: true,
-		}).DialContext(ctx, network, address)
+		}
+		if runtime.LocalAddr != nil && StringValue(runtime.LocalAddr) != "" {
+			dialer.LocalAddr = getLocalAddr(StringValue(runtime.LocalAddr))
+		}
+		return dialer.DialContext(ctx, network, address)
 	}
 }
 

tea/tea_test.go

@@ -560,12 +560,37 @@ func Test_DoRequest(t *testing.T) {
 			return mockResponse(200, ``, nil)
 		}
 	}
+	// Test socks5 proxy with user:password@host format
 	runtimeObj["socks5Proxy"] = "socks5://someuser:somepassword@ecs.aliyun.com"
 	runtimeObj["localAddr"] = "127.0.0.1"
 	resp, err = DoRequest(request, runtimeObj)
 	utils.AssertNil(t, err)
 	utils.AssertEqual(t, "test", StringValue(resp.Headers["tea"]))
 
+	// Test socks5 proxy with explicit port
+	runtimeObj["socks5Proxy"] = "socks5://someuser:somepassword@ecs.aliyun.com:1080"
+	resp, err = DoRequest(request, runtimeObj)
+	utils.AssertNil(t, err)
+	utils.AssertEqual(t, "test", StringValue(resp.Headers["tea"]))
+
+	// Test socks5 proxy without authentication
+	runtimeObj["socks5Proxy"] = "socks5://proxy.example.com:1080"
+	resp, err = DoRequest(request, runtimeObj)
+	utils.AssertNil(t, err)
+	utils.AssertEqual(t, "test", StringValue(resp.Headers["tea"]))
+
+	// Test socks5 proxy with IPv6 address
+	runtimeObj["socks5Proxy"] = "socks5://[::1]:1080"
+	resp, err = DoRequest(request, runtimeObj)
+	utils.AssertNil(t, err)
+	utils.AssertEqual(t, "test", StringValue(resp.Headers["tea"]))
+
+	// Test socks5 proxy with IPv6 and authentication
+	runtimeObj["socks5Proxy"] = "socks5://user:pass@[2001:db8::1]:1080"
+	resp, err = DoRequest(request, runtimeObj)
+	utils.AssertNil(t, err)
+	utils.AssertEqual(t, "test", StringValue(resp.Headers["tea"]))
+
 	runtimeObj["key"] = "private rsa key"
 	runtimeObj["cert"] = "private certification"
 	runtimeObj["ca"] = "private ca"
@@ -942,3 +967,49 @@ func Test_TransInt32AndInt(t *testing.T) {
 	b := ToInt32(a)
 	utils.AssertEqual(t, Int32Value(b), int32(10))
 }
+
+func Test_getLocalAddr(t *testing.T) {
+	// Test empty address
+	addr := getLocalAddr("")
+	utils.AssertNil(t, addr)
+
+	// Test valid IPv4 address
+	addr = getLocalAddr("127.0.0.1")
+	utils.AssertNotNil(t, addr)
+	utils.AssertEqual(t, "127.0.0.1", addr.IP.String())
+
+	// Test valid IPv6 address
+	addr = getLocalAddr("::1")
+	utils.AssertNotNil(t, addr)
+	utils.AssertEqual(t, "::1", addr.IP.String())
+
+	// Test invalid IP
+	addr = getLocalAddr("invalid")
+	utils.AssertNotNil(t, addr)
+	utils.AssertNil(t, addr.IP)
+}
+
+func Test_setDialContext(t *testing.T) {
+	runtime := &RuntimeObject{
+		ConnectTimeout: Int(1000),
+		LocalAddr:      String("127.0.0.1"),
+	}
+	dialerFunc := setDialContext(runtime)
+	utils.AssertNotNil(t, dialerFunc)
+}
+
+func Test_TimeoutLogic(t *testing.T) {
+	runtime := &RuntimeObject{
+		ConnectTimeout: Int(1000),
+		ReadTimeout:    Int(2000),
+	}
+	
+	req := &Request{
+		Protocol: String("http"),
+		Domain:   String("localhost"),
+	}
+	trans, err := getHttpTransport(req, runtime)
+	utils.AssertNil(t, err)
+	utils.AssertNotNil(t, trans)
+	utils.AssertEqual(t, time.Duration(2000)*time.Millisecond, trans.ResponseHeaderTimeout)
+}